Merge branch 'master' into lm_sla_supports_auto

src/CMakeLists.txt

@@ -46,7 +46,18 @@ endif()
 add_subdirectory(libslic3r)
 
 if (SLIC3R_GUI)
-    message(STATUS "WXWIN environment set to: $ENV{WXWIN}")
+    if(WIN32)
+        message(STATUS "WXWIN environment set to: $ENV{WXWIN}")
+    elseif(UNIX)
+        message(STATUS "wx-config path: ${wxWidgets_CONFIG_EXECUTABLE}")
+        set(wxWidgets_USE_UNICODE ON)
+        if(SLIC3R_STATIC)
+            set(wxWidgets_USE_STATIC ON)
+        else()
+            set(wxWidgets_USE_STATIC OFF)
+        endif()
+    endif()
+
     find_package(wxWidgets REQUIRED COMPONENTS base core adv html gl)
     include(${wxWidgets_USE_FILE})
 endif()

src/eigen/unsupported/Eigen/SparseExtra

@@ -0,0 +1,53 @@
+// This file is part of Eigen, a lightweight C++ template library
+// for linear algebra.
+//
+// Copyright (C) 2008-2009 Gael Guennebaud <g.gael@free.fr>
+//
+// This Source Code Form is subject to the terms of the Mozilla
+// Public License v. 2.0. If a copy of the MPL was not distributed
+// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#ifndef EIGEN_SPARSE_EXTRA_MODULE_H
+#define EIGEN_SPARSE_EXTRA_MODULE_H
+
+#include "../../Eigen/Sparse"
+
+#include "../../Eigen/src/Core/util/DisableStupidWarnings.h"
+
+#include <vector>
+#include <map>
+#include <cstdlib>
+#include <cstring>
+#include <algorithm>
+#include <fstream>
+#include <sstream>
+
+#ifdef EIGEN_GOOGLEHASH_SUPPORT
+  #include <google/dense_hash_map>
+#endif
+
+/**
+  * \defgroup SparseExtra_Module SparseExtra module
+  *
+  * This module contains some experimental features extending the sparse module.
+  *
+  * \code
+  * #include <Eigen/SparseExtra>
+  * \endcode
+  */
+
+
+#include "src/SparseExtra/DynamicSparseMatrix.h"
+#include "src/SparseExtra/BlockOfDynamicSparseMatrix.h"
+#include "src/SparseExtra/RandomSetter.h"
+
+#include "src/SparseExtra/MarketIO.h"
+
+#if !defined(_WIN32)
+#include <dirent.h>
+#include "src/SparseExtra/MatrixMarketIterator.h"
+#endif
+
+#include "../../Eigen/src/Core/util/ReenableStupidWarnings.h"
+
+#endif // EIGEN_SPARSE_EXTRA_MODULE_H

src/eigen/unsupported/Eigen/src/SparseExtra/BlockOfDynamicSparseMatrix.h

@@ -0,0 +1,122 @@
+// This file is part of Eigen, a lightweight C++ template library
+// for linear algebra.
+//
+// Copyright (C) 2008-2009 Gael Guennebaud <gael.guennebaud@inria.fr>
+//
+// This Source Code Form is subject to the terms of the Mozilla
+// Public License v. 2.0. If a copy of the MPL was not distributed
+// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#ifndef EIGEN_SPARSE_BLOCKFORDYNAMICMATRIX_H
+#define EIGEN_SPARSE_BLOCKFORDYNAMICMATRIX_H
+
+namespace Eigen { 
+
+#if 0
+
+// NOTE Have to be reimplemented as a specialization of BlockImpl< DynamicSparseMatrix<_Scalar, _Options, _Index>, ... >
+// See SparseBlock.h for an example
+
+
+/***************************************************************************
+* specialisation for DynamicSparseMatrix
+***************************************************************************/
+
+template<typename _Scalar, int _Options, typename _Index, int Size>
+class SparseInnerVectorSet<DynamicSparseMatrix<_Scalar, _Options, _Index>, Size>
+  : public SparseMatrixBase<SparseInnerVectorSet<DynamicSparseMatrix<_Scalar, _Options, _Index>, Size> >
+{
+    typedef DynamicSparseMatrix<_Scalar, _Options, _Index> MatrixType;
+  public:
+
+    enum { IsRowMajor = internal::traits<SparseInnerVectorSet>::IsRowMajor };
+
+    EIGEN_SPARSE_PUBLIC_INTERFACE(SparseInnerVectorSet)
+    class InnerIterator: public MatrixType::InnerIterator
+    {
+      public:
+        inline InnerIterator(const SparseInnerVectorSet& xpr, Index outer)
+          : MatrixType::InnerIterator(xpr.m_matrix, xpr.m_outerStart + outer), m_outer(outer)
+        {}
+        inline Index row() const { return IsRowMajor ? m_outer : this->index(); }
+        inline Index col() const { return IsRowMajor ? this->index() : m_outer; }
+      protected:
+        Index m_outer;
+    };
+
+    inline SparseInnerVectorSet(const MatrixType& matrix, Index outerStart, Index outerSize)
+      : m_matrix(matrix), m_outerStart(outerStart), m_outerSize(outerSize)
+    {
+      eigen_assert( (outerStart>=0) && ((outerStart+outerSize)<=matrix.outerSize()) );
+    }
+
+    inline SparseInnerVectorSet(const MatrixType& matrix, Index outer)
+      : m_matrix(matrix), m_outerStart(outer), m_outerSize(Size)
+    {
+      eigen_assert(Size!=Dynamic);
+      eigen_assert( (outer>=0) && (outer<matrix.outerSize()) );
+    }
+
+    template<typename OtherDerived>
+    inline SparseInnerVectorSet& operator=(const SparseMatrixBase<OtherDerived>& other)
+    {
+      if (IsRowMajor != ((OtherDerived::Flags&RowMajorBit)==RowMajorBit))
+      {
+        // need to transpose => perform a block evaluation followed by a big swap
+        DynamicSparseMatrix<Scalar,IsRowMajor?RowMajorBit:0> aux(other);
+        *this = aux.markAsRValue();
+      }
+      else
+      {
+        // evaluate/copy vector per vector
+        for (Index j=0; j<m_outerSize.value(); ++j)
+        {
+          SparseVector<Scalar,IsRowMajor ? RowMajorBit : 0> aux(other.innerVector(j));
+          m_matrix.const_cast_derived()._data()[m_outerStart+j].swap(aux._data());
+        }
+      }
+      return *this;
+    }
+
+    inline SparseInnerVectorSet& operator=(const SparseInnerVectorSet& other)
+    {
+      return operator=<SparseInnerVectorSet>(other);
+    }
+
+    Index nonZeros() const
+    {
+      Index count = 0;
+      for (Index j=0; j<m_outerSize.value(); ++j)
+        count += m_matrix._data()[m_outerStart+j].size();
+      return count;
+    }
+
+    const Scalar& lastCoeff() const
+    {
+      EIGEN_STATIC_ASSERT_VECTOR_ONLY(SparseInnerVectorSet);
+      eigen_assert(m_matrix.data()[m_outerStart].size()>0);
+      return m_matrix.data()[m_outerStart].vale(m_matrix.data()[m_outerStart].size()-1);
+    }
+
+//     template<typename Sparse>
+//     inline SparseInnerVectorSet& operator=(const SparseMatrixBase<OtherDerived>& other)
+//     {
+//       return *this;
+//     }
+
+    EIGEN_STRONG_INLINE Index rows() const { return IsRowMajor ? m_outerSize.value() : m_matrix.rows(); }
+    EIGEN_STRONG_INLINE Index cols() const { return IsRowMajor ? m_matrix.cols() : m_outerSize.value(); }
+
+  protected:
+
+    const typename MatrixType::Nested m_matrix;
+    Index m_outerStart;
+    const internal::variable_if_dynamic<Index, Size> m_outerSize;
+
+};
+
+#endif
+
+} // end namespace Eigen
+
+#endif // EIGEN_SPARSE_BLOCKFORDYNAMICMATRIX_H

src/eigen/unsupported/Eigen/src/SparseExtra/DynamicSparseMatrix.h

@@ -0,0 +1,392 @@
+// This file is part of Eigen, a lightweight C++ template library
+// for linear algebra.
+//
+// Copyright (C) 2008-2009 Gael Guennebaud <gael.guennebaud@inria.fr>
+//
+// This Source Code Form is subject to the terms of the Mozilla
+// Public License v. 2.0. If a copy of the MPL was not distributed
+// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#ifndef EIGEN_DYNAMIC_SPARSEMATRIX_H
+#define EIGEN_DYNAMIC_SPARSEMATRIX_H
+
+namespace Eigen { 
+
+/** \deprecated use a SparseMatrix in an uncompressed mode
+  *
+  * \class DynamicSparseMatrix
+  *
+  * \brief A sparse matrix class designed for matrix assembly purpose
+  *
+  * \param _Scalar the scalar type, i.e. the type of the coefficients
+  *
+  * Unlike SparseMatrix, this class provides a much higher degree of flexibility. In particular, it allows
+  * random read/write accesses in log(rho*outer_size) where \c rho is the probability that a coefficient is
+  * nonzero and outer_size is the number of columns if the matrix is column-major and the number of rows
+  * otherwise.
+  *
+  * Internally, the data are stored as a std::vector of compressed vector. The performances of random writes might
+  * decrease as the number of nonzeros per inner-vector increase. In practice, we observed very good performance
+  * till about 100 nonzeros/vector, and the performance remains relatively good till 500 nonzeros/vectors.
+  *
+  * \see SparseMatrix
+  */
+
+namespace internal {
+template<typename _Scalar, int _Options, typename _StorageIndex>
+struct traits<DynamicSparseMatrix<_Scalar, _Options, _StorageIndex> >
+{
+  typedef _Scalar Scalar;
+  typedef _StorageIndex StorageIndex;
+  typedef Sparse StorageKind;
+  typedef MatrixXpr XprKind;
+  enum {
+    RowsAtCompileTime = Dynamic,
+    ColsAtCompileTime = Dynamic,
+    MaxRowsAtCompileTime = Dynamic,
+    MaxColsAtCompileTime = Dynamic,
+    Flags = _Options | NestByRefBit | LvalueBit,
+    CoeffReadCost = NumTraits<Scalar>::ReadCost,
+    SupportedAccessPatterns = OuterRandomAccessPattern
+  };
+};
+}
+
+template<typename _Scalar, int _Options, typename _StorageIndex>
+ class  DynamicSparseMatrix
+  : public SparseMatrixBase<DynamicSparseMatrix<_Scalar, _Options, _StorageIndex> >
+{
+    typedef SparseMatrixBase<DynamicSparseMatrix> Base;
+    using Base::convert_index;
+  public:
+    EIGEN_SPARSE_PUBLIC_INTERFACE(DynamicSparseMatrix)
+    // FIXME: why are these operator already alvailable ???
+    // EIGEN_SPARSE_INHERIT_ASSIGNMENT_OPERATOR(DynamicSparseMatrix, +=)
+    // EIGEN_SPARSE_INHERIT_ASSIGNMENT_OPERATOR(DynamicSparseMatrix, -=)
+    typedef MappedSparseMatrix<Scalar,Flags> Map;
+    using Base::IsRowMajor;
+    using Base::operator=;
+    enum {
+      Options = _Options
+    };
+
+  protected:
+
+    typedef DynamicSparseMatrix<Scalar,(Flags&~RowMajorBit)|(IsRowMajor?RowMajorBit:0), StorageIndex> TransposedSparseMatrix;
+
+    Index m_innerSize;
+    std::vector<internal::CompressedStorage<Scalar,StorageIndex> > m_data;
+
+  public:
+
+    inline Index rows() const { return IsRowMajor ? outerSize() : m_innerSize; }
+    inline Index cols() const { return IsRowMajor ? m_innerSize : outerSize(); }
+    inline Index innerSize() const { return m_innerSize; }
+    inline Index outerSize() const { return convert_index(m_data.size()); }
+    inline Index innerNonZeros(Index j) const { return m_data[j].size(); }
+
+    std::vector<internal::CompressedStorage<Scalar,StorageIndex> >& _data() { return m_data; }
+    const std::vector<internal::CompressedStorage<Scalar,StorageIndex> >& _data() const { return m_data; }
+
+    /** \returns the coefficient value at given position \a row, \a col
+      * This operation involes a log(rho*outer_size) binary search.
+      */
+    inline Scalar coeff(Index row, Index col) const
+    {
+      const Index outer = IsRowMajor ? row : col;
+      const Index inner = IsRowMajor ? col : row;
+      return m_data[outer].at(inner);
+    }
+
+    /** \returns a reference to the coefficient value at given position \a row, \a col
+      * This operation involes a log(rho*outer_size) binary search. If the coefficient does not
+      * exist yet, then a sorted insertion into a sequential buffer is performed.
+      */
+    inline Scalar& coeffRef(Index row, Index col)
+    {
+      const Index outer = IsRowMajor ? row : col;
+      const Index inner = IsRowMajor ? col : row;
+      return m_data[outer].atWithInsertion(inner);
+    }
+
+    class InnerIterator;
+    class ReverseInnerIterator;
+
+    void setZero()
+    {
+      for (Index j=0; j<outerSize(); ++j)
+        m_data[j].clear();
+    }
+
+    /** \returns the number of non zero coefficients */
+    Index nonZeros() const
+    {
+      Index res = 0;
+      for (Index j=0; j<outerSize(); ++j)
+        res += m_data[j].size();
+      return res;
+    }
+
+
+
+    void reserve(Index reserveSize = 1000)
+    {
+      if (outerSize()>0)
+      {
+        Index reserveSizePerVector = (std::max)(reserveSize/outerSize(),Index(4));
+        for (Index j=0; j<outerSize(); ++j)
+        {
+          m_data[j].reserve(reserveSizePerVector);
+        }
+      }
+    }
+
+    /** Does nothing: provided for compatibility with SparseMatrix */
+    inline void startVec(Index /*outer*/) {}
+
+    /** \returns a reference to the non zero coefficient at position \a row, \a col assuming that:
+      * - the nonzero does not already exist
+      * - the new coefficient is the last one of the given inner vector.
+      *
+      * \sa insert, insertBackByOuterInner */
+    inline Scalar& insertBack(Index row, Index col)
+    {
+      return insertBackByOuterInner(IsRowMajor?row:col, IsRowMajor?col:row);
+    }
+
+    /** \sa insertBack */
+    inline Scalar& insertBackByOuterInner(Index outer, Index inner)
+    {
+      eigen_assert(outer<Index(m_data.size()) && inner<m_innerSize && "out of range");
+      eigen_assert(((m_data[outer].size()==0) || (m_data[outer].index(m_data[outer].size()-1)<inner))
+                && "wrong sorted insertion");
+      m_data[outer].append(0, inner);
+      return m_data[outer].value(m_data[outer].size()-1);
+    }
+
+    inline Scalar& insert(Index row, Index col)
+    {
+      const Index outer = IsRowMajor ? row : col;
+      const Index inner = IsRowMajor ? col : row;
+
+      Index startId = 0;
+      Index id = static_cast<Index>(m_data[outer].size()) - 1;
+      m_data[outer].resize(id+2,1);
+
+      while ( (id >= startId) && (m_data[outer].index(id) > inner) )
+      {
+        m_data[outer].index(id+1) = m_data[outer].index(id);
+        m_data[outer].value(id+1) = m_data[outer].value(id);
+        --id;
+      }
+      m_data[outer].index(id+1) = inner;
+      m_data[outer].value(id+1) = 0;
+      return m_data[outer].value(id+1);
+    }
+
+    /** Does nothing: provided for compatibility with SparseMatrix */
+    inline void finalize() {}
+
+    /** Suppress all nonzeros which are smaller than \a reference under the tolerence \a epsilon */
+    void prune(Scalar reference, RealScalar epsilon = NumTraits<RealScalar>::dummy_precision())
+    {
+      for (Index j=0; j<outerSize(); ++j)
+        m_data[j].prune(reference,epsilon);
+    }
+
+    /** Resize the matrix without preserving the data (the matrix is set to zero)
+      */
+    void resize(Index rows, Index cols)
+    {
+      const Index outerSize = IsRowMajor ? rows : cols;
+      m_innerSize = convert_index(IsRowMajor ? cols : rows);
+      setZero();
+      if (Index(m_data.size()) != outerSize)
+      {
+        m_data.resize(outerSize);
+      }
+    }
+
+    void resizeAndKeepData(Index rows, Index cols)
+    {
+      const Index outerSize = IsRowMajor ? rows : cols;
+      const Index innerSize = IsRowMajor ? cols : rows;
+      if (m_innerSize>innerSize)
+      {
+        // remove all coefficients with innerCoord>=innerSize
+        // TODO
+        //std::cerr << "not implemented yet\n";
+        exit(2);
+      }
+      if (m_data.size() != outerSize)
+      {
+        m_data.resize(outerSize);
+      }
+    }
+
+    /** The class DynamicSparseMatrix is deprectaed */
+    EIGEN_DEPRECATED inline DynamicSparseMatrix()
+      : m_innerSize(0), m_data(0)
+    {
+      eigen_assert(innerSize()==0 && outerSize()==0);
+    }
+
+    /** The class DynamicSparseMatrix is deprectaed */
+    EIGEN_DEPRECATED inline DynamicSparseMatrix(Index rows, Index cols)
+      : m_innerSize(0)
+    {
+      resize(rows, cols);
+    }
+
+    /** The class DynamicSparseMatrix is deprectaed */
+    template<typename OtherDerived>
+    EIGEN_DEPRECATED explicit inline DynamicSparseMatrix(const SparseMatrixBase<OtherDerived>& other)
+      : m_innerSize(0)
+    {
+    Base::operator=(other.derived());
+    }
+
+    inline DynamicSparseMatrix(const DynamicSparseMatrix& other)
+      : Base(), m_innerSize(0)
+    {
+      *this = other.derived();
+    }
+
+    inline void swap(DynamicSparseMatrix& other)
+    {
+      //EIGEN_DBG_SPARSE(std::cout << "SparseMatrix:: swap\n");
+      std::swap(m_innerSize, other.m_innerSize);
+      //std::swap(m_outerSize, other.m_outerSize);
+      m_data.swap(other.m_data);
+    }
+
+    inline DynamicSparseMatrix& operator=(const DynamicSparseMatrix& other)
+    {
+      if (other.isRValue())
+      {
+        swap(other.const_cast_derived());
+      }
+      else
+      {
+        resize(other.rows(), other.cols());
+        m_data = other.m_data;
+      }
+      return *this;
+    }
+
+    /** Destructor */
+    inline ~DynamicSparseMatrix() {}
+
+  public:
+
+    /** \deprecated
+      * Set the matrix to zero and reserve the memory for \a reserveSize nonzero coefficients. */
+    EIGEN_DEPRECATED void startFill(Index reserveSize = 1000)
+    {
+      setZero();
+      reserve(reserveSize);
+    }
+
+    /** \deprecated use insert()
+      * inserts a nonzero coefficient at given coordinates \a row, \a col and returns its reference assuming that:
+      *  1 - the coefficient does not exist yet
+      *  2 - this the coefficient with greater inner coordinate for the given outer coordinate.
+      * In other words, assuming \c *this is column-major, then there must not exists any nonzero coefficient of coordinates
+      * \c i \c x \a col such that \c i >= \a row. Otherwise the matrix is invalid.
+      *
+      * \see fillrand(), coeffRef()
+      */
+    EIGEN_DEPRECATED Scalar& fill(Index row, Index col)
+    {
+      const Index outer = IsRowMajor ? row : col;
+      const Index inner = IsRowMajor ? col : row;
+      return insertBack(outer,inner);
+    }
+
+    /** \deprecated use insert()
+      * Like fill() but with random inner coordinates.
+      * Compared to the generic coeffRef(), the unique limitation is that we assume
+      * the coefficient does not exist yet.
+      */
+    EIGEN_DEPRECATED Scalar& fillrand(Index row, Index col)
+    {
+      return insert(row,col);
+    }
+
+    /** \deprecated use finalize()
+      * Does nothing. Provided for compatibility with SparseMatrix. */
+    EIGEN_DEPRECATED void endFill() {}
+    
+#   ifdef EIGEN_DYNAMICSPARSEMATRIX_PLUGIN
+#     include EIGEN_DYNAMICSPARSEMATRIX_PLUGIN
+#   endif
+ };
+
+template<typename Scalar, int _Options, typename _StorageIndex>
+class DynamicSparseMatrix<Scalar,_Options,_StorageIndex>::InnerIterator : public SparseVector<Scalar,_Options,_StorageIndex>::InnerIterator
+{
+    typedef typename SparseVector<Scalar,_Options,_StorageIndex>::InnerIterator Base;
+  public:
+    InnerIterator(const DynamicSparseMatrix& mat, Index outer)
+      : Base(mat.m_data[outer]), m_outer(outer)
+    {}
+
+    inline Index row() const { return IsRowMajor ? m_outer : Base::index(); }
+    inline Index col() const { return IsRowMajor ? Base::index() : m_outer; }
+    inline Index outer() const { return m_outer; }
+
+  protected:
+    const Index m_outer;
+};
+
+template<typename Scalar, int _Options, typename _StorageIndex>
+class DynamicSparseMatrix<Scalar,_Options,_StorageIndex>::ReverseInnerIterator : public SparseVector<Scalar,_Options,_StorageIndex>::ReverseInnerIterator
+{
+    typedef typename SparseVector<Scalar,_Options,_StorageIndex>::ReverseInnerIterator Base;
+  public:
+    ReverseInnerIterator(const DynamicSparseMatrix& mat, Index outer)
+      : Base(mat.m_data[outer]), m_outer(outer)
+    {}
+
+    inline Index row() const { return IsRowMajor ? m_outer : Base::index(); }
+    inline Index col() const { return IsRowMajor ? Base::index() : m_outer; }
+    inline Index outer() const { return m_outer; }
+
+  protected:
+    const Index m_outer;
+};
+
+namespace internal {
+
+template<typename _Scalar, int _Options, typename _StorageIndex>
+struct evaluator<DynamicSparseMatrix<_Scalar,_Options,_StorageIndex> >
+  : evaluator_base<DynamicSparseMatrix<_Scalar,_Options,_StorageIndex> >
+{
+  typedef _Scalar Scalar;
+  typedef DynamicSparseMatrix<_Scalar,_Options,_StorageIndex> SparseMatrixType;
+  typedef typename SparseMatrixType::InnerIterator InnerIterator;
+  typedef typename SparseMatrixType::ReverseInnerIterator ReverseInnerIterator;
+  
+  enum {
+    CoeffReadCost = NumTraits<_Scalar>::ReadCost,
+    Flags = SparseMatrixType::Flags
+  };
+  
+  evaluator() : m_matrix(0) {}
+  evaluator(const SparseMatrixType &mat) : m_matrix(&mat) {}
+  
+  operator SparseMatrixType&() { return m_matrix->const_cast_derived(); }
+  operator const SparseMatrixType&() const { return *m_matrix; }
+  
+  Scalar coeff(Index row, Index col) const { return m_matrix->coeff(row,col); }
+  
+  Index nonZerosEstimate() const { return m_matrix->nonZeros(); }
+
+  const SparseMatrixType *m_matrix;
+};
+
+}
+
+} // end namespace Eigen
+
+#endif // EIGEN_DYNAMIC_SPARSEMATRIX_H

src/eigen/unsupported/Eigen/src/SparseExtra/MarketIO.h

@@ -0,0 +1,275 @@
+// This file is part of Eigen, a lightweight C++ template library
+// for linear algebra.
+//
+// Copyright (C) 2011 Gael Guennebaud <gael.guennebaud@inria.fr>
+// Copyright (C) 2012 Desire NUENTSA WAKAM <desire.nuentsa_wakam@inria.fr>
+//
+// This Source Code Form is subject to the terms of the Mozilla
+// Public License v. 2.0. If a copy of the MPL was not distributed
+// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#ifndef EIGEN_SPARSE_MARKET_IO_H
+#define EIGEN_SPARSE_MARKET_IO_H
+
+#include <iostream>
+
+namespace Eigen { 
+
+namespace internal 
+{
+  template <typename Scalar>
+  inline bool GetMarketLine (std::stringstream& line, Index& M, Index& N, Index& i, Index& j, Scalar& value)
+  {
+    line >> i >> j >> value;
+    i--;
+    j--;
+    if(i>=0 && j>=0 && i<M && j<N)
+    {
+      return true; 
+    }
+    else
+      return false;
+  }
+  template <typename Scalar>
+  inline bool GetMarketLine (std::stringstream& line, Index& M, Index& N, Index& i, Index& j, std::complex<Scalar>& value)
+  {
+    Scalar valR, valI;
+    line >> i >> j >> valR >> valI;
+    i--;
+    j--;
+    if(i>=0 && j>=0 && i<M && j<N)
+    {
+      value = std::complex<Scalar>(valR, valI);
+      return true; 
+    }
+    else
+      return false;
+  }
+
+  template <typename RealScalar>
+  inline void  GetVectorElt (const std::string& line, RealScalar& val)
+  {
+    std::istringstream newline(line);
+    newline >> val;  
+  }
+
+  template <typename RealScalar>
+  inline void GetVectorElt (const std::string& line, std::complex<RealScalar>& val)
+  {
+    RealScalar valR, valI; 
+    std::istringstream newline(line);
+    newline >> valR >> valI; 
+    val = std::complex<RealScalar>(valR, valI);
+  }
+  
+  template<typename Scalar>
+  inline void putMarketHeader(std::string& header,int sym)
+  {
+    header= "%%MatrixMarket matrix coordinate ";
+    if(internal::is_same<Scalar, std::complex<float> >::value || internal::is_same<Scalar, std::complex<double> >::value)
+    {
+      header += " complex"; 
+      if(sym == Symmetric) header += " symmetric";
+      else if (sym == SelfAdjoint) header += " Hermitian";
+      else header += " general";
+    }
+    else
+    {
+      header += " real"; 
+      if(sym == Symmetric) header += " symmetric";
+      else header += " general";
+    }
+  }
+
+  template<typename Scalar>
+  inline void PutMatrixElt(Scalar value, int row, int col, std::ofstream& out)
+  {
+    out << row << " "<< col << " " << value << "\n";
+  }
+  template<typename Scalar>
+  inline void PutMatrixElt(std::complex<Scalar> value, int row, int col, std::ofstream& out)
+  {
+    out << row << " " << col << " " << value.real() << " " << value.imag() << "\n";
+  }
+
+
+  template<typename Scalar>
+  inline void putVectorElt(Scalar value, std::ofstream& out)
+  {
+    out << value << "\n"; 
+  }
+  template<typename Scalar>
+  inline void putVectorElt(std::complex<Scalar> value, std::ofstream& out)
+  {
+    out << value.real << " " << value.imag()<< "\n"; 
+  }
+
+} // end namepsace internal
+
+inline bool getMarketHeader(const std::string& filename, int& sym, bool& iscomplex, bool& isvector)
+{
+  sym = 0; 
+  iscomplex = false;
+  isvector = false;
+  std::ifstream in(filename.c_str(),std::ios::in);
+  if(!in)
+    return false;
+  
+  std::string line; 
+  // The matrix header is always the first line in the file 
+  std::getline(in, line); eigen_assert(in.good());
+  
+  std::stringstream fmtline(line); 
+  std::string substr[5];
+  fmtline>> substr[0] >> substr[1] >> substr[2] >> substr[3] >> substr[4];
+  if(substr[2].compare("array") == 0) isvector = true;
+  if(substr[3].compare("complex") == 0) iscomplex = true;
+  if(substr[4].compare("symmetric") == 0) sym = Symmetric;
+  else if (substr[4].compare("Hermitian") == 0) sym = SelfAdjoint;
+  
+  return true;
+}
+  
+template<typename SparseMatrixType>
+bool loadMarket(SparseMatrixType& mat, const std::string& filename)
+{
+  typedef typename SparseMatrixType::Scalar Scalar;
+  typedef typename SparseMatrixType::Index Index;
+  std::ifstream input(filename.c_str(),std::ios::in);
+  if(!input)
+    return false;
+  
+  const int maxBuffersize = 2048;
+  char buffer[maxBuffersize];
+  
+  bool readsizes = false;
+
+  typedef Triplet<Scalar,Index> T;
+  std::vector<T> elements;
+  
+  Index M(-1), N(-1), NNZ(-1);
+  Index count = 0;
+  while(input.getline(buffer, maxBuffersize))
+  {
+    // skip comments   
+    //NOTE An appropriate test should be done on the header to get the  symmetry
+    if(buffer[0]=='%')
+      continue;
+    
+    std::stringstream line(buffer);
+    
+    if(!readsizes)
+    {
+      line >> M >> N >> NNZ;
+      if(M > 0 && N > 0 && NNZ > 0) 
+      {
+        readsizes = true;
+        //std::cout << "sizes: " << M << "," << N << "," << NNZ << "\n";
+        mat.resize(M,N);
+        mat.reserve(NNZ);
+      }
+    }
+    else
+    { 
+      Index i(-1), j(-1);
+      Scalar value; 
+      if( internal::GetMarketLine(line, M, N, i, j, value) ) 
+      {
+        ++ count;
+        elements.push_back(T(i,j,value));
+      }
+      else 
+        std::cerr << "Invalid read: " << i << "," << j << "\n";        
+    }
+  }
+  mat.setFromTriplets(elements.begin(), elements.end());
+  if(count!=NNZ)
+    std::cerr << count << "!=" << NNZ << "\n";
+  
+  input.close();
+  return true;
+}
+
+template<typename VectorType>
+bool loadMarketVector(VectorType& vec, const std::string& filename)
+{
+   typedef typename VectorType::Scalar Scalar;
+  std::ifstream in(filename.c_str(), std::ios::in);
+  if(!in)
+    return false;
+  
+  std::string line; 
+  int n(0), col(0); 
+  do 
+  { // Skip comments
+    std::getline(in, line); eigen_assert(in.good());
+  } while (line[0] == '%');
+  std::istringstream newline(line);
+  newline  >> n >> col; 
+  eigen_assert(n>0 && col>0);
+  vec.resize(n);
+  int i = 0; 
+  Scalar value; 
+  while ( std::getline(in, line) && (i < n) ){
+    internal::GetVectorElt(line, value); 
+    vec(i++) = value; 
+  }
+  in.close();
+  if (i!=n){
+    std::cerr<< "Unable to read all elements from file " << filename << "\n";
+    return false;
+  }
+  return true;
+}
+
+template<typename SparseMatrixType>
+bool saveMarket(const SparseMatrixType& mat, const std::string& filename, int sym = 0)
+{
+  typedef typename SparseMatrixType::Scalar Scalar;
+  std::ofstream out(filename.c_str(),std::ios::out);
+  if(!out)
+    return false;
+  
+  out.flags(std::ios_base::scientific);
+  out.precision(64);
+  std::string header; 
+  internal::putMarketHeader<Scalar>(header, sym); 
+  out << header << std::endl; 
+  out << mat.rows() << " " << mat.cols() << " " << mat.nonZeros() << "\n";
+  int count = 0;
+  for(int j=0; j<mat.outerSize(); ++j)
+    for(typename SparseMatrixType::InnerIterator it(mat,j); it; ++it)
+    {
+      ++ count;
+      internal::PutMatrixElt(it.value(), it.row()+1, it.col()+1, out);
+      // out << it.row()+1 << " " << it.col()+1 << " " << it.value() << "\n";
+    }
+  out.close();
+  return true;
+}
+
+template<typename VectorType>
+bool saveMarketVector (const VectorType& vec, const std::string& filename)
+{
+ typedef typename VectorType::Scalar Scalar; 
+ std::ofstream out(filename.c_str(),std::ios::out);
+  if(!out)
+    return false;
+  
+  out.flags(std::ios_base::scientific);
+  out.precision(64);
+  if(internal::is_same<Scalar, std::complex<float> >::value || internal::is_same<Scalar, std::complex<double> >::value)
+      out << "%%MatrixMarket matrix array complex general\n"; 
+  else
+    out << "%%MatrixMarket matrix array real general\n"; 
+  out << vec.size() << " "<< 1 << "\n";
+  for (int i=0; i < vec.size(); i++){
+    internal::putVectorElt(vec(i), out); 
+  }
+  out.close();
+  return true; 
+}
+
+} // end namespace Eigen
+
+#endif // EIGEN_SPARSE_MARKET_IO_H

src/eigen/unsupported/Eigen/src/SparseExtra/MatrixMarketIterator.h

@@ -0,0 +1,247 @@
+
+// This file is part of Eigen, a lightweight C++ template library
+// for linear algebra.
+//
+// Copyright (C) 2012 Desire NUENTSA WAKAM <desire.nuentsa_wakam@inria.fr>
+//
+// This Source Code Form is subject to the terms of the Mozilla
+// Public License v. 2.0. If a copy of the MPL was not distributed
+// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#ifndef EIGEN_BROWSE_MATRICES_H
+#define EIGEN_BROWSE_MATRICES_H
+
+namespace Eigen {
+
+enum {
+  SPD = 0x100,
+  NonSymmetric = 0x0
+}; 
+
+/** 
+ * @brief Iterator to browse matrices from a specified folder
+ * 
+ * This is used to load all the matrices from a folder. 
+ * The matrices should be in Matrix Market format
+ * It is assumed that the matrices are named as matname.mtx
+ * and matname_SPD.mtx if the matrix is Symmetric and positive definite (or Hermitian)
+ * The right hand side vectors are loaded as well, if they exist.
+ * They should be named as matname_b.mtx. 
+ * Note that the right hand side for a SPD matrix is named as matname_SPD_b.mtx
+ * 
+ * Sometimes a reference solution is available. In this case, it should be named as matname_x.mtx
+ * 
+ * Sample code
+ * \code
+ * 
+ * \endcode
+ * 
+ * \tparam Scalar The scalar type 
+ */
+template <typename Scalar>
+class MatrixMarketIterator 
+{
+    typedef typename NumTraits<Scalar>::Real RealScalar;
+  public:
+    typedef Matrix<Scalar,Dynamic,1> VectorType; 
+    typedef SparseMatrix<Scalar,ColMajor> MatrixType; 
+  
+  public:
+    MatrixMarketIterator(const std::string &folder)
+      : m_sym(0), m_isvalid(false), m_matIsLoaded(false), m_hasRhs(false), m_hasrefX(false), m_folder(folder)
+    {
+      m_folder_id = opendir(folder.c_str());
+      if(m_folder_id)
+        Getnextvalidmatrix();
+    }
+    
+    ~MatrixMarketIterator()
+    {
+      if (m_folder_id) closedir(m_folder_id); 
+    }
+    
+    inline MatrixMarketIterator& operator++()
+    {
+      m_matIsLoaded = false;
+      m_hasrefX = false;
+      m_hasRhs = false;
+      Getnextvalidmatrix();
+      return *this;
+    }
+    inline operator bool() const { return m_isvalid;}
+    
+    /** Return the sparse matrix corresponding to the current file */
+    inline MatrixType& matrix() 
+    { 
+      // Read the matrix
+      if (m_matIsLoaded) return m_mat;
+      
+      std::string matrix_file = m_folder + "/" + m_matname + ".mtx";
+      if ( !loadMarket(m_mat, matrix_file)) 
+      {
+        std::cerr << "Warning loadMarket failed when loading \"" << matrix_file << "\"" << std::endl;
+        m_matIsLoaded = false;
+        return m_mat;
+      }
+      m_matIsLoaded = true; 
+
+      if (m_sym != NonSymmetric) 
+      {
+        // Check whether we need to restore a full matrix:
+        RealScalar diag_norm  = m_mat.diagonal().norm();
+        RealScalar lower_norm = m_mat.template triangularView<Lower>().norm();
+        RealScalar upper_norm = m_mat.template triangularView<Upper>().norm();
+        if(lower_norm>diag_norm && upper_norm==diag_norm)
+        {
+          // only the lower part is stored
+          MatrixType tmp(m_mat);
+          m_mat = tmp.template selfadjointView<Lower>();
+        }
+        else if(upper_norm>diag_norm && lower_norm==diag_norm)
+        {
+          // only the upper part is stored
+          MatrixType tmp(m_mat);
+          m_mat = tmp.template selfadjointView<Upper>();
+        }
+      }
+      return m_mat; 
+    }
+    
+    /** Return the right hand side corresponding to the current matrix. 
+     * If the rhs file is not provided, a random rhs is generated
+     */
+    inline VectorType& rhs() 
+    { 
+       // Get the right hand side
+      if (m_hasRhs) return m_rhs;
+      
+      std::string rhs_file;
+      rhs_file = m_folder + "/" + m_matname + "_b.mtx"; // The pattern is matname_b.mtx
+      m_hasRhs = Fileexists(rhs_file);
+      if (m_hasRhs)
+      {
+        m_rhs.resize(m_mat.cols());
+        m_hasRhs = loadMarketVector(m_rhs, rhs_file);
+      }
+      if (!m_hasRhs)
+      {
+        // Generate a random right hand side
+        if (!m_matIsLoaded) this->matrix(); 
+        m_refX.resize(m_mat.cols());
+        m_refX.setRandom();
+        m_rhs = m_mat * m_refX;
+        m_hasrefX = true;
+        m_hasRhs = true;
+      }
+      return m_rhs; 
+    }
+    
+    /** Return a reference solution
+     * If it is not provided and if the right hand side is not available
+     * then refX is randomly generated such that A*refX = b 
+     * where A and b are the matrix and the rhs. 
+     * Note that when a rhs is provided, refX is not available 
+     */
+    inline VectorType& refX() 
+    { 
+      // Check if a reference solution is provided
+      if (m_hasrefX) return m_refX;
+      
+      std::string lhs_file;
+      lhs_file = m_folder + "/" + m_matname + "_x.mtx"; 
+      m_hasrefX = Fileexists(lhs_file);
+      if (m_hasrefX)
+      {
+        m_refX.resize(m_mat.cols());
+        m_hasrefX = loadMarketVector(m_refX, lhs_file);
+      }
+      else
+        m_refX.resize(0);
+      return m_refX; 
+    }
+    
+    inline std::string& matname() { return m_matname; }
+    
+    inline int sym() { return m_sym; }
+    
+    bool hasRhs() {return m_hasRhs; }
+    bool hasrefX() {return m_hasrefX; }
+    bool isFolderValid() { return bool(m_folder_id); }
+    
+  protected:
+    
+    inline bool Fileexists(std::string file)
+    {
+      std::ifstream file_id(file.c_str());
+      if (!file_id.good() ) 
+      {
+        return false;
+      }
+      else 
+      {
+        file_id.close();
+        return true;
+      }
+    }
+    
+    void Getnextvalidmatrix( )
+    {
+      m_isvalid = false;
+      // Here, we return with the next valid matrix in the folder
+      while ( (m_curs_id = readdir(m_folder_id)) != NULL) {
+        m_isvalid = false;
+        std::string curfile;
+        curfile = m_folder + "/" + m_curs_id->d_name;
+        // Discard if it is a folder
+        if (m_curs_id->d_type == DT_DIR) continue; //FIXME This may not be available on non BSD systems
+//         struct stat st_buf; 
+//         stat (curfile.c_str(), &st_buf);
+//         if (S_ISDIR(st_buf.st_mode)) continue;
+        
+        // Determine from the header if it is a matrix or a right hand side 
+        bool isvector,iscomplex=false;
+        if(!getMarketHeader(curfile,m_sym,iscomplex,isvector)) continue;
+        if(isvector) continue;
+        if (!iscomplex)
+        {
+          if(internal::is_same<Scalar, std::complex<float> >::value || internal::is_same<Scalar, std::complex<double> >::value)
+            continue; 
+        }
+        if (iscomplex)
+        {
+          if(internal::is_same<Scalar, float>::value || internal::is_same<Scalar, double>::value)
+            continue; 
+        }
+        
+        
+        // Get the matrix name
+        std::string filename = m_curs_id->d_name;
+        m_matname = filename.substr(0, filename.length()-4); 
+        
+        // Find if the matrix is SPD 
+        size_t found = m_matname.find("SPD");
+        if( (found!=std::string::npos) && (m_sym != NonSymmetric) )
+          m_sym = SPD;
+       
+        m_isvalid = true;
+        break; 
+      }
+    }
+    int m_sym; // Symmetry of the matrix
+    MatrixType m_mat; // Current matrix  
+    VectorType m_rhs;  // Current vector
+    VectorType m_refX; // The reference solution, if exists
+    std::string m_matname; // Matrix Name
+    bool m_isvalid; 
+    bool m_matIsLoaded; // Determine if the matrix has already been loaded from the file
+    bool m_hasRhs; // The right hand side exists
+    bool m_hasrefX; // A reference solution is provided
+    std::string m_folder;
+    DIR * m_folder_id;
+    struct dirent *m_curs_id; 
+    
+};
+
+} // end namespace Eigen
+
+#endif

src/eigen/unsupported/Eigen/src/SparseExtra/RandomSetter.h

@@ -0,0 +1,327 @@
+// This file is part of Eigen, a lightweight C++ template library
+// for linear algebra.
+//
+// Copyright (C) 2008 Gael Guennebaud <gael.guennebaud@inria.fr>
+//
+// This Source Code Form is subject to the terms of the Mozilla
+// Public License v. 2.0. If a copy of the MPL was not distributed
+// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#ifndef EIGEN_RANDOMSETTER_H
+#define EIGEN_RANDOMSETTER_H
+
+namespace Eigen { 
+
+/** Represents a std::map
+  *
+  * \see RandomSetter
+  */
+template<typename Scalar> struct StdMapTraits
+{
+  typedef int KeyType;
+  typedef std::map<KeyType,Scalar> Type;
+  enum {
+    IsSorted = 1
+  };
+
+  static void setInvalidKey(Type&, const KeyType&) {}
+};
+
+#ifdef EIGEN_UNORDERED_MAP_SUPPORT
+/** Represents a std::unordered_map
+  *
+  * To use it you need to both define EIGEN_UNORDERED_MAP_SUPPORT and include the unordered_map header file
+  * yourself making sure that unordered_map is defined in the std namespace.
+  *
+  * For instance, with current version of gcc you can either enable C++0x standard (-std=c++0x) or do:
+  * \code
+  * #include <tr1/unordered_map>
+  * #define EIGEN_UNORDERED_MAP_SUPPORT
+  * namespace std {
+  *   using std::tr1::unordered_map;
+  * }
+  * \endcode
+  *
+  * \see RandomSetter
+  */
+template<typename Scalar> struct StdUnorderedMapTraits
+{
+  typedef int KeyType;
+  typedef std::unordered_map<KeyType,Scalar> Type;
+  enum {
+    IsSorted = 0
+  };
+
+  static void setInvalidKey(Type&, const KeyType&) {}
+};
+#endif // EIGEN_UNORDERED_MAP_SUPPORT
+
+#ifdef _DENSE_HASH_MAP_H_
+/** Represents a google::dense_hash_map
+  *
+  * \see RandomSetter
+  */
+template<typename Scalar> struct GoogleDenseHashMapTraits
+{
+  typedef int KeyType;
+  typedef google::dense_hash_map<KeyType,Scalar> Type;
+  enum {
+    IsSorted = 0
+  };
+
+  static void setInvalidKey(Type& map, const KeyType& k)
+  { map.set_empty_key(k); }
+};
+#endif
+
+#ifdef _SPARSE_HASH_MAP_H_
+/** Represents a google::sparse_hash_map
+  *
+  * \see RandomSetter
+  */
+template<typename Scalar> struct GoogleSparseHashMapTraits
+{
+  typedef int KeyType;
+  typedef google::sparse_hash_map<KeyType,Scalar> Type;
+  enum {
+    IsSorted = 0
+  };
+
+  static void setInvalidKey(Type&, const KeyType&) {}
+};
+#endif
+
+/** \class RandomSetter
+  *
+  * \brief The RandomSetter is a wrapper object allowing to set/update a sparse matrix with random access
+  *
+  * \tparam SparseMatrixType the type of the sparse matrix we are updating
+  * \tparam MapTraits a traits class representing the map implementation used for the temporary sparse storage.
+  *                  Its default value depends on the system.
+  * \tparam OuterPacketBits defines the number of rows (or columns) manage by a single map object
+  *                        as a power of two exponent.
+  *
+  * This class temporarily represents a sparse matrix object using a generic map implementation allowing for
+  * efficient random access. The conversion from the compressed representation to a hash_map object is performed
+  * in the RandomSetter constructor, while the sparse matrix is updated back at destruction time. This strategy
+  * suggest the use of nested blocks as in this example:
+  *
+  * \code
+  * SparseMatrix<double> m(rows,cols);
+  * {
+  *   RandomSetter<SparseMatrix<double> > w(m);
+  *   // don't use m but w instead with read/write random access to the coefficients:
+  *   for(;;)
+  *     w(rand(),rand()) = rand;
+  * }
+  * // when w is deleted, the data are copied back to m
+  * // and m is ready to use.
+  * \endcode
+  *
+  * Since hash_map objects are not fully sorted, representing a full matrix as a single hash_map would
+  * involve a big and costly sort to update the compressed matrix back. To overcome this issue, a RandomSetter
+  * use multiple hash_map, each representing 2^OuterPacketBits columns or rows according to the storage order.
+  * To reach optimal performance, this value should be adjusted according to the average number of nonzeros
+  * per rows/columns.
+  *
+  * The possible values for the template parameter MapTraits are:
+  *  - \b StdMapTraits: corresponds to std::map. (does not perform very well)
+  *  - \b GnuHashMapTraits: corresponds to __gnu_cxx::hash_map (available only with GCC)
+  *  - \b GoogleDenseHashMapTraits: corresponds to google::dense_hash_map (best efficiency, reasonable memory consumption)
+  *  - \b GoogleSparseHashMapTraits: corresponds to google::sparse_hash_map (best memory consumption, relatively good performance)
+  *
+  * The default map implementation depends on the availability, and the preferred order is:
+  * GoogleSparseHashMapTraits, GnuHashMapTraits, and finally StdMapTraits.
+  *
+  * For performance and memory consumption reasons it is highly recommended to use one of
+  * the Google's hash_map implementation. To enable the support for them, you have two options:
+  *  - \#include <google/dense_hash_map> yourself \b before Eigen/Sparse header
+  *  - define EIGEN_GOOGLEHASH_SUPPORT
+  * In the later case the inclusion of <google/dense_hash_map> is made for you.
+  *
+  * \see http://code.google.com/p/google-sparsehash/
+  */
+template<typename SparseMatrixType,
+         template <typename T> class MapTraits =
+#if defined _DENSE_HASH_MAP_H_
+          GoogleDenseHashMapTraits
+#elif defined _HASH_MAP
+          GnuHashMapTraits
+#else
+          StdMapTraits
+#endif
+         ,int OuterPacketBits = 6>
+class RandomSetter
+{
+    typedef typename SparseMatrixType::Scalar Scalar;
+    typedef typename SparseMatrixType::StorageIndex StorageIndex;
+
+    struct ScalarWrapper
+    {
+      ScalarWrapper() : value(0) {}
+      Scalar value;
+    };
+    typedef typename MapTraits<ScalarWrapper>::KeyType KeyType;
+    typedef typename MapTraits<ScalarWrapper>::Type HashMapType;
+    static const int OuterPacketMask = (1 << OuterPacketBits) - 1;
+    enum {
+      SwapStorage = 1 - MapTraits<ScalarWrapper>::IsSorted,
+      TargetRowMajor = (SparseMatrixType::Flags & RowMajorBit) ? 1 : 0,
+      SetterRowMajor = SwapStorage ? 1-TargetRowMajor : TargetRowMajor
+    };
+
+  public:
+
+    /** Constructs a random setter object from the sparse matrix \a target
+      *
+      * Note that the initial value of \a target are imported. If you want to re-set
+      * a sparse matrix from scratch, then you must set it to zero first using the
+      * setZero() function.
+      */
+    inline RandomSetter(SparseMatrixType& target)
+      : mp_target(&target)
+    {
+      const Index outerSize = SwapStorage ? target.innerSize() : target.outerSize();
+      const Index innerSize = SwapStorage ? target.outerSize() : target.innerSize();
+      m_outerPackets = outerSize >> OuterPacketBits;
+      if (outerSize&OuterPacketMask)
+        m_outerPackets += 1;
+      m_hashmaps = new HashMapType[m_outerPackets];
+      // compute number of bits needed to store inner indices
+      Index aux = innerSize - 1;
+      m_keyBitsOffset = 0;
+      while (aux)
+      {
+        ++m_keyBitsOffset;
+        aux = aux >> 1;
+      }
+      KeyType ik = (1<<(OuterPacketBits+m_keyBitsOffset));
+      for (Index k=0; k<m_outerPackets; ++k)
+        MapTraits<ScalarWrapper>::setInvalidKey(m_hashmaps[k],ik);
+
+      // insert current coeffs
+      for (Index j=0; j<mp_target->outerSize(); ++j)
+        for (typename SparseMatrixType::InnerIterator it(*mp_target,j); it; ++it)
+          (*this)(TargetRowMajor?j:it.index(), TargetRowMajor?it.index():j) = it.value();
+    }
+
+    /** Destructor updating back the sparse matrix target */
+    ~RandomSetter()
+    {
+      KeyType keyBitsMask = (1<<m_keyBitsOffset)-1;
+      if (!SwapStorage) // also means the map is sorted
+      {
+        mp_target->setZero();
+        mp_target->makeCompressed();
+        mp_target->reserve(nonZeros());
+        Index prevOuter = -1;
+        for (Index k=0; k<m_outerPackets; ++k)
+        {
+          const Index outerOffset = (1<<OuterPacketBits) * k;
+          typename HashMapType::iterator end = m_hashmaps[k].end();
+          for (typename HashMapType::iterator it = m_hashmaps[k].begin(); it!=end; ++it)
+          {
+            const Index outer = (it->first >> m_keyBitsOffset) + outerOffset;
+            const Index inner = it->first & keyBitsMask;
+            if (prevOuter!=outer)
+            {
+              for (Index j=prevOuter+1;j<=outer;++j)
+                mp_target->startVec(j);
+              prevOuter = outer;
+            }
+            mp_target->insertBackByOuterInner(outer, inner) = it->second.value;
+          }
+        }
+        mp_target->finalize();
+      }
+      else
+      {
+        VectorXi positions(mp_target->outerSize());
+        positions.setZero();
+        // pass 1
+        for (Index k=0; k<m_outerPackets; ++k)
+        {
+          typename HashMapType::iterator end = m_hashmaps[k].end();
+          for (typename HashMapType::iterator it = m_hashmaps[k].begin(); it!=end; ++it)
+          {
+            const Index outer = it->first & keyBitsMask;
+            ++positions[outer];
+          }
+        }
+        // prefix sum
+        Index count = 0;
+        for (Index j=0; j<mp_target->outerSize(); ++j)
+        {
+          Index tmp = positions[j];
+          mp_target->outerIndexPtr()[j] = count;
+          positions[j] = count;
+          count += tmp;
+        }
+        mp_target->makeCompressed();
+        mp_target->outerIndexPtr()[mp_target->outerSize()] = count;
+        mp_target->resizeNonZeros(count);
+        // pass 2
+        for (Index k=0; k<m_outerPackets; ++k)
+        {
+          const Index outerOffset = (1<<OuterPacketBits) * k;
+          typename HashMapType::iterator end = m_hashmaps[k].end();
+          for (typename HashMapType::iterator it = m_hashmaps[k].begin(); it!=end; ++it)
+          {
+            const Index inner = (it->first >> m_keyBitsOffset) + outerOffset;
+            const Index outer = it->first & keyBitsMask;
+            // sorted insertion
+            // Note that we have to deal with at most 2^OuterPacketBits unsorted coefficients,
+            // moreover those 2^OuterPacketBits coeffs are likely to be sparse, an so only a
+            // small fraction of them have to be sorted, whence the following simple procedure:
+            Index posStart = mp_target->outerIndexPtr()[outer];
+            Index i = (positions[outer]++) - 1;
+            while ( (i >= posStart) && (mp_target->innerIndexPtr()[i] > inner) )
+            {
+              mp_target->valuePtr()[i+1] = mp_target->valuePtr()[i];
+              mp_target->innerIndexPtr()[i+1] = mp_target->innerIndexPtr()[i];
+              --i;
+            }
+            mp_target->innerIndexPtr()[i+1] = inner;
+            mp_target->valuePtr()[i+1] = it->second.value;
+          }
+        }
+      }
+      delete[] m_hashmaps;
+    }
+
+    /** \returns a reference to the coefficient at given coordinates \a row, \a col */
+    Scalar& operator() (Index row, Index col)
+    {
+      const Index outer = SetterRowMajor ? row : col;
+      const Index inner = SetterRowMajor ? col : row;
+      const Index outerMajor = outer >> OuterPacketBits; // index of the packet/map
+      const Index outerMinor = outer & OuterPacketMask;  // index of the inner vector in the packet
+      const KeyType key = internal::convert_index<KeyType>((outerMinor<<m_keyBitsOffset) | inner);
+      return m_hashmaps[outerMajor][key].value;
+    }
+
+    /** \returns the number of non zero coefficients
+      *
+      * \note According to the underlying map/hash_map implementation,
+      * this function might be quite expensive.
+      */
+    Index nonZeros() const
+    {
+      Index nz = 0;
+      for (Index k=0; k<m_outerPackets; ++k)
+        nz += static_cast<Index>(m_hashmaps[k].size());
+      return nz;
+    }
+
+
+  protected:
+
+    HashMapType* m_hashmaps;
+    SparseMatrixType* mp_target;
+    Index m_outerPackets;
+    unsigned char m_keyBitsOffset;
+};
+
+} // end namespace Eigen
+
+#endif // EIGEN_RANDOMSETTER_H

src/libnest2d/CMakeLists.txt

@@ -68,7 +68,7 @@ if(TBB_FOUND)
        target_compile_definitions(libnest2d INTERFACE -D__TBB_NO_IMPLICIT_LINKAGE)
     endif()
     # The Intel TBB library will use the std::exception_ptr feature of C++11.
-    target_compile_definitions(libnest2d INTERFACE -DTBB_USE_CAPTURED_EXCEPTION=1)
+    target_compile_definitions(libnest2d INTERFACE -DTBB_USE_CAPTURED_EXCEPTION=0)
 
     target_link_libraries(libnest2d INTERFACE tbb)
 else()

src/libslic3r/CMakeLists.txt

@@ -194,6 +194,10 @@ target_link_libraries(libslic3r
     tbb
     )
 
+if(WIN32)
+    target_link_libraries(libslic3r Psapi.lib)
+endif()
+
 if(SLIC3R_PROFILE)
     target_link_libraries(slic3r Shiny)
 endif()

src/libslic3r/Channel.hpp

@@ -1,6 +1,7 @@
 #ifndef slic3r_Channel_hpp_
 #define slic3r_Channel_hpp_
 
+#include <memory>
 #include <deque>
 #include <condition_variable>
 #include <mutex>
@@ -13,32 +14,26 @@ namespace Slic3r {
 
 template<class T> class Channel
 {
-private:
-    using UniqueLock = std::unique_lock<std::mutex>;
-    using Queue = std::deque<T>;
 public:
-    class Guard
+    using UniqueLock = std::unique_lock<std::mutex>;
+
+    template<class Ptr> class Unlocker
     {
     public:
-        Guard(UniqueLock lock, const Queue &queue) : m_lock(std::move(lock)), m_queue(queue) {}
-        Guard(const Guard &other) = delete;
-        Guard(Guard &&other) = delete;
-        ~Guard() {}
+        Unlocker(UniqueLock lock) : m_lock(std::move(lock)) {}
+        Unlocker(const Unlocker &other) noexcept : m_lock(std::move(other.m_lock)) {}     // XXX: done beacuse of MSVC 2013 not supporting init of deleter by move
+        Unlocker(Unlocker &&other) noexcept : m_lock(std::move(other.m_lock)) {}
+        Unlocker& operator=(const Unlocker &other) = delete;
+        Unlocker& operator=(Unlocker &&other) { m_lock = std::move(other.m_lock); }
 
-        // Access trampolines
-        size_t size() const noexcept { return m_queue.size(); }
-        bool empty() const noexcept { return m_queue.empty(); }
-        typename Queue::const_iterator begin() const noexcept { return m_queue.begin(); }
-        typename Queue::const_iterator end() const noexcept { return m_queue.end(); }
-        typename Queue::const_reference operator[](size_t i) const { return m_queue[i]; }
-
-        Guard& operator=(const Guard &other) = delete;
-        Guard& operator=(Guard &&other) = delete;
+        void operator()(Ptr*) { m_lock.unlock(); }
     private:
-        UniqueLock m_lock;
-        const Queue &m_queue;
+        mutable UniqueLock m_lock;    // XXX: mutable: see above
     };
 
+    using Queue = std::deque<T>;
+    using LockedConstPtr = std::unique_ptr<const Queue, Unlocker<const Queue>>;
+    using LockedPtr = std::unique_ptr<Queue, Unlocker<Queue>>;
 
     Channel() {}
     ~Channel() {}
@@ -56,7 +51,7 @@ public:
     {
         {
             UniqueLock lock(m_mutex);
-            m_queue.push_back(std::forward(item));
+            m_queue.push_back(std::forward<T>(item));
         }
         if (! silent) { m_condition.notify_one(); }
     }
@@ -82,19 +77,22 @@ public:
         }
     }
 
-    // Unlocked observers
-    // Thread unsafe! Keep in mind you need to re-verify the result after acquiring lock!
-    size_t size() const noexcept { return m_queue.size(); }
-    bool empty() const noexcept { return m_queue.empty(); }
+    // Unlocked observers/hints
+    // Thread unsafe! Keep in mind you need to re-verify the result after locking!
+    size_t size_hint() const noexcept { return m_queue.size(); }
 
-    Guard read() const
+    LockedConstPtr lock_read() const
     {
-        return Guard(UniqueLock(m_mutex), m_queue);
+        return LockedConstPtr(&m_queue, Unlocker<const Queue>(UniqueLock(m_mutex)));
     }
 
+    LockedPtr lock_rw()
+    {
+        return LockedPtr(&m_queue, Unlocker<Queue>(UniqueLock(m_mutex)));
+    }
 private:
     Queue m_queue;
-    std::mutex m_mutex;
+    mutable std::mutex m_mutex;
     std::condition_variable m_condition;
 };
 

src/libslic3r/Format/PRUS.cpp

@@ -96,7 +96,6 @@ static void extract_model_from_archive(
     const char *model_xml = strstr(scene_xml_data.data(), model_name_tag);
     const char *zero_tag  = "<zero>";
     const char *zero_xml  = strstr(scene_xml_data.data(), zero_tag);
-    float  trafo[3][4] = { 0 };
     Vec3d instance_rotation = Vec3d::Zero();
     Vec3d instance_scaling_factor = Vec3d::Ones();
     Vec3d instance_offset = Vec3d::Zero();
@@ -124,19 +123,7 @@ static void extract_model_from_archive(
                 "[%f, %f, %f]", zero, zero+1, zero+2) == 3) {
             instance_scaling_factor = Vec3d((double)scale[0], (double)scale[1], (double)scale[2]);
             instance_rotation = Vec3d(-(double)rotation[0], -(double)rotation[1], -(double)rotation[2]);
-            Eigen::Matrix3f mat_rot, mat_scale, mat_trafo;
-            mat_rot = Eigen::AngleAxisf(-rotation[2], Eigen::Vector3f::UnitZ()) * 
-                      Eigen::AngleAxisf(-rotation[1], Eigen::Vector3f::UnitY()) *
-                      Eigen::AngleAxisf(-rotation[0], Eigen::Vector3f::UnitX());
-            mat_scale = Eigen::Scaling(scale[0], scale[1], scale[2]);
-            mat_trafo = mat_rot * mat_scale;
-            for (size_t r = 0; r < 3; ++ r) {
-                for (size_t c = 0; c < 3; ++ c)
-                    trafo[r][c] += mat_trafo(r, c);
-            }
             instance_offset = Vec3d((double)(position[0] - zero[0]), (double)(position[1] - zero[1]), (double)(position[2] - zero[2]));
-            // CHECK_ME -> Is the following correct ?
-            trafo[2][3] = position[2] / (float)instance_scaling_factor(2);
             trafo_set = true;
         }
         const char *group_tag    = "<group>";
@@ -189,8 +176,6 @@ static void extract_model_from_archive(
                 // All the faces have been read.
                 stl_get_size(&stl);
                 mesh.repair();
-                // Transform the model.
-                stl_transform(&stl, &trafo[0][0]);
                 if (std::abs(stl.stats.min(2)) < EPSILON)
                     stl.stats.min(2) = 0.;
                 // Add a mesh to a model.
@@ -274,8 +259,6 @@ static void extract_model_from_archive(
             memcpy((void*)stl.facet_start, facets.data(), facets.size() * 50);
             stl_get_size(&stl);
             mesh.repair();
-            // Transform the model.
-            stl_transform(&stl, &trafo[0][0]);
             // Add a mesh to a model.
             if (mesh.facets_count() > 0)
                 mesh_valid = true;
@@ -329,7 +312,7 @@ bool load_prus(const char *path, Model *model)
             if (! mz_zip_reader_file_stat(&archive, i, &stat))
                 continue;
             std::vector<char> buffer;
-            buffer.assign((size_t)stat.m_uncomp_size + 1, 0);
+            buffer.assign((size_t)stat.m_uncomp_size, 0);
             res = mz_zip_reader_extract_file_to_mem(&archive, stat.m_filename, (char*)buffer.data(), (size_t)stat.m_uncomp_size, 0);
             if (res == MZ_FALSE)
                 std::runtime_error(std::string("Error while extracting a file from ") + path);

src/libslic3r/GCode.cpp

@@ -423,7 +423,7 @@ void GCode::do_export(Print *print, const char *path, GCodePreviewData *preview_
 
 	print->set_started(psGCodeExport);
 
-    BOOST_LOG_TRIVIAL(info) << "Exporting G-code...";
+    BOOST_LOG_TRIVIAL(info) << "Exporting G-code..." << log_memory_info();
 
     // Remove the old g-code if it exists.
     boost::nowide::remove(path);
@@ -435,9 +435,11 @@ void GCode::do_export(Print *print, const char *path, GCodePreviewData *preview_
     if (file == nullptr)
         throw std::runtime_error(std::string("G-code export to ") + path + " failed.\nCannot open the file for writing.\n");
 
+    m_enable_analyzer = preview_data != nullptr;
+
     try {
         m_placeholder_parser_failed_templates.clear();
-        this->_do_export(*print, file, preview_data);
+        this->_do_export(*print, file);
         fflush(file);
         if (ferror(file)) {
             fclose(file);
@@ -453,15 +455,6 @@ void GCode::do_export(Print *print, const char *path, GCodePreviewData *preview_
     }
     fclose(file);
 
-    if (print->config().remaining_times.value) {
-        BOOST_LOG_TRIVIAL(debug) << "Processing remaining times for normal mode";
-        m_normal_time_estimator.post_process_remaining_times(path_tmp, 60.0f);
-        if (m_silent_time_estimator_enabled) {
-            BOOST_LOG_TRIVIAL(debug) << "Processing remaining times for silent mode";
-            m_silent_time_estimator.post_process_remaining_times(path_tmp, 60.0f);
-        }
-    }
-
     if (! m_placeholder_parser_failed_templates.empty()) {
         // G-code export proceeded, but some of the PlaceholderParser substitutions failed.
         std::string msg = std::string("G-code export to ") + path + " failed due to invalid custom G-code sections:\n\n";
@@ -475,12 +468,30 @@ void GCode::do_export(Print *print, const char *path, GCodePreviewData *preview_
         throw std::runtime_error(msg);
     }
 
+    if (print->config().remaining_times.value) {
+        BOOST_LOG_TRIVIAL(debug) << "Processing remaining times for normal mode";
+        m_normal_time_estimator.post_process_remaining_times(path_tmp, 60.0f);
+        m_normal_time_estimator.reset();
+        if (m_silent_time_estimator_enabled) {
+            BOOST_LOG_TRIVIAL(debug) << "Processing remaining times for silent mode";
+            m_silent_time_estimator.post_process_remaining_times(path_tmp, 60.0f);
+            m_silent_time_estimator.reset();
+        }
+    }
+
+    // starts analyzer calculations
+    if (m_enable_analyzer) {
+        BOOST_LOG_TRIVIAL(debug) << "Preparing G-code preview data";
+        m_analyzer.calc_gcode_preview_data(*preview_data);
+        m_analyzer.reset();
+    }
+
     if (rename_file(path_tmp, path) != 0)
         throw std::runtime_error(
             std::string("Failed to rename the output G-code file from ") + path_tmp + " to " + path + '\n' +
             "Is " + path_tmp + " locked?" + '\n');
 
-    BOOST_LOG_TRIVIAL(info) << "Exporting G-code finished";
+    BOOST_LOG_TRIVIAL(info) << "Exporting G-code finished" << log_memory_info();
 	print->set_done(psGCodeExport);
 
     // Write the profiler measurements to file
@@ -488,7 +499,7 @@ void GCode::do_export(Print *print, const char *path, GCodePreviewData *preview_
     PROFILE_OUTPUT(debug_out_path("gcode-export-profile.txt").c_str());
 }
 
-void GCode::_do_export(Print &print, FILE *file, GCodePreviewData *preview_data)
+void GCode::_do_export(Print &print, FILE *file)
 {
     PROFILE_FUNC();
 
@@ -558,7 +569,6 @@ void GCode::_do_export(Print &print, FILE *file, GCodePreviewData *preview_data)
 
     // resets analyzer
     m_analyzer.reset();
-    m_enable_analyzer = preview_data != nullptr;
 
     // resets analyzer's tracking data
     m_last_mm3_per_mm = GCodeAnalyzer::Default_mm3_per_mm;
@@ -1034,12 +1044,6 @@ void GCode::_do_export(Print &print, FILE *file, GCodePreviewData *preview_data)
             _write(file, full_config);
     }
     print.throw_if_canceled();
-
-    // starts analyzer calculations
-    if (preview_data != nullptr) {
-        BOOST_LOG_TRIVIAL(debug) << "Preparing G-code preview data";
-        m_analyzer.calc_gcode_preview_data(*preview_data);
-    }
 }
 
 std::string GCode::placeholder_parser_process(const std::string &name, const std::string &templ, unsigned int current_extruder_id, const DynamicConfig *config_override)
@@ -1231,7 +1235,7 @@ void GCode::process_layer(
     const Print                     &print,
     // Set of object & print layers of the same PrintObject and with the same print_z.
     const std::vector<LayerToPrint> &layers,
-    const LayerTools  &layer_tools,
+    const LayerTools                &layer_tools,
     // If set to size_t(-1), then print all copies of all objects.
     // Otherwise print a single copy of a single object.
     const size_t                     single_object_idx)
@@ -1644,6 +1648,11 @@ void GCode::process_layer(
     // printf("G-code after filter:\n%s\n", out.c_str());
     
     _write(file, gcode);
+    BOOST_LOG_TRIVIAL(trace) << "Exported layer " << layer.id() << " print_z " << print_z << 
+        ", time estimator memory: " <<
+            format_memsize_MB(m_normal_time_estimator.memory_used() + m_silent_time_estimator_enabled ? m_silent_time_estimator.memory_used() : 0) <<
+        ", analyzer memory: " <<
+            format_memsize_MB(m_analyzer.memory_used());
 }
 
 void GCode::apply_print_config(const PrintConfig &print_config)

src/libslic3r/GCode.hpp

@@ -180,7 +180,7 @@ public:
     static void append_full_config(const Print& print, std::string& str);
 
 protected:
-    void            _do_export(Print &print, FILE *file, GCodePreviewData *preview_data);
+    void            _do_export(Print &print, FILE *file);
 
     // Object and support extrusions of the same PrintObject at the same print_z.
     struct LayerToPrint

src/libslic3r/GCode/Analyzer.cpp

@@ -4,6 +4,7 @@
 
 #include "../libslic3r.h"
 #include "../PrintConfig.hpp"
+#include "../Utils.hpp"
 #include "Print.hpp"
 
 #include "Analyzer.hpp"
@@ -852,6 +853,16 @@ void GCodeAnalyzer::_calc_gcode_preview_unretractions(GCodePreviewData& preview_
     }
 }
 
+// Return an estimate of the memory consumed by the time estimator.
+size_t GCodeAnalyzer::memory_used() const
+{
+    size_t out = sizeof(*this);
+    for (const std::pair<GCodeMove::EType, GCodeMovesList> &kvp : m_moves_map)
+        out += sizeof(kvp) + SLIC3R_STDVEC_MEMSIZE(kvp.second, GCodeMove);
+    out += m_process_output.size();
+    return out;
+}
+
 GCodePreviewData::Color operator + (const GCodePreviewData::Color& c1, const GCodePreviewData::Color& c2)
 {
     return GCodePreviewData::Color(clamp(0.0f, 1.0f, c1.rgba[0] + c2.rgba[0]),

src/libslic3r/GCode/Analyzer.hpp

@@ -120,6 +120,9 @@ public:
     // Calculates all data needed for gcode visualization
     void calc_gcode_preview_data(GCodePreviewData& preview_data);
 
+    // Return an estimate of the memory consumed by the time estimator.
+    size_t memory_used() const;
+
     static bool is_valid_extrusion_role(ExtrusionRole role);
 
 private:

src/libslic3r/GCode/PreviewData.cpp

@@ -2,6 +2,7 @@
 #include "PreviewData.hpp"
 #include <float.h>
 #include <I18N.hpp>
+#include "Utils.hpp"
 
 #include <boost/format.hpp>
 
@@ -205,6 +206,18 @@ bool GCodePreviewData::Extrusion::is_role_flag_set(unsigned int flags, Extrusion
     return GCodeAnalyzer::is_valid_extrusion_role(role) && (flags & (1 << (role - erPerimeter))) != 0;
 }
 
+size_t GCodePreviewData::Extrusion::memory_used() const
+{
+    size_t out = sizeof(*this);
+    out += SLIC3R_STDVEC_MEMSIZE(this->layers, Layer);
+    for (const Layer &layer : this->layers) {
+        out += SLIC3R_STDVEC_MEMSIZE(layer.paths, ExtrusionPath);
+        for (const ExtrusionPath &path : layer.paths)
+			out += SLIC3R_STDVEC_MEMSIZE(path.polyline.points, Point);
+    }
+	return out;
+}
+
 const float GCodePreviewData::Travel::Default_Width = 0.075f;
 const float GCodePreviewData::Travel::Default_Height = 0.075f;
 const GCodePreviewData::Color GCodePreviewData::Travel::Default_Type_Colors[Num_Types] =
@@ -224,6 +237,15 @@ void GCodePreviewData::Travel::set_default()
     is_visible = false;
 }
 
+size_t GCodePreviewData::Travel::memory_used() const
+{
+    size_t out = sizeof(*this);
+    out += SLIC3R_STDVEC_MEMSIZE(this->polylines, Polyline);
+	for (const Polyline &polyline : this->polylines)
+		out += SLIC3R_STDVEC_MEMSIZE(polyline.polyline.points, Vec3crd);
+    return out;
+}
+
 const GCodePreviewData::Color GCodePreviewData::Retraction::Default_Color = GCodePreviewData::Color(1.0f, 1.0f, 1.0f, 1.0f);
 
 GCodePreviewData::Retraction::Position::Position(const Vec3crd& position, float width, float height)
@@ -239,6 +261,11 @@ void GCodePreviewData::Retraction::set_default()
     is_visible = false;
 }
 
+size_t GCodePreviewData::Retraction::memory_used() const
+{
+	return sizeof(*this) + SLIC3R_STDVEC_MEMSIZE(this->positions, Position);
+}
+
 void GCodePreviewData::Shell::set_default()
 {
     is_visible = false;
@@ -483,4 +510,15 @@ GCodePreviewData::LegendItemsList GCodePreviewData::get_legend_items(const std::
     return items;
 }
 
+// Return an estimate of the memory consumed by the time estimator.
+size_t GCodePreviewData::memory_used() const
+{
+    return 
+        this->extrusion.memory_used() + 
+        this->travel.memory_used() + 
+        this->retraction.memory_used() + 
+        this->unretraction.memory_used() + 
+        sizeof(shell) + sizeof(ranges);
+}
+
 } // namespace Slic3r

src/libslic3r/GCode/PreviewData.hpp

@@ -99,6 +99,9 @@ public:
         void set_default();
         bool is_role_flag_set(ExtrusionRole role) const;
 
+        // Return an estimate of the memory consumed by the time estimator.
+        size_t memory_used() const;
+
         static bool is_role_flag_set(unsigned int flags, ExtrusionRole role);
     };
 
@@ -144,6 +147,9 @@ public:
         size_t color_print_idx;
 
         void set_default();
+
+        // Return an estimate of the memory consumed by the time estimator.
+        size_t memory_used() const;
     };
 
     struct Retraction
@@ -166,6 +172,9 @@ public:
         bool is_visible;
 
         void set_default();
+
+        // Return an estimate of the memory consumed by the time estimator.
+        size_t memory_used() const;
     };
 
     struct Shell
@@ -199,6 +208,9 @@ public:
 
     std::string get_legend_title() const;
     LegendItemsList get_legend_items(const std::vector<float>& tool_colors, const std::vector</*double*/std::pair<double, double>>& cp_values) const;
+
+    // Return an estimate of the memory consumed by the time estimator.
+    size_t memory_used() const;
 };
 
 GCodePreviewData::Color operator + (const GCodePreviewData::Color& c1, const GCodePreviewData::Color& c2);

src/libslic3r/GCode/WipeTowerPrusaMM.cpp

@@ -315,6 +315,20 @@ public:
 		return *this;
 	};
 
+	// Let the firmware back up the active speed override value.
+	Writer& speed_override_backup() 
+	{
+		m_gcode += "M220 B\n";
+		return *this;
+	};
+
+	// Let the firmware restore the active speed override value.
+	Writer& speed_override_restore() 
+	{
+		m_gcode += "M220 R\n";
+		return *this;
+	};
+
 	// Set digital trimpot motor
 	Writer& set_extruder_trimpot(int current) 
 	{
@@ -473,7 +487,6 @@ WipeTowerPrusaMM::material_type WipeTowerPrusaMM::parse_material(const char *nam
 	return INVALID;
 }
 
-
 // Returns gcode to prime the nozzles at the front edge of the print bed.
 WipeTower::ToolChangeResult WipeTowerPrusaMM::prime(
 	// print_z of the first layer.
@@ -501,12 +514,15 @@ WipeTower::ToolChangeResult WipeTowerPrusaMM::prime(
 		  .set_initial_tool(m_current_tool)
 		  .append(";--------------------\n"
 			 	  "; CP PRIMING START\n")
-		  .append(";--------------------\n")
-		  .speed_override(100);
+		  .append(";--------------------\n");
+	if (m_retain_speed_override)
+		writer.speed_override_backup();
+	writer.speed_override(100);
 
 	writer.set_initial_position(xy(0.f, 0.f))	// Always move to the starting position
-		.travel(cleaning_box.ld, 7200)
-		.set_extruder_trimpot(750); 			// Increase the extruder driver current to allow fast ramming.
+		.travel(cleaning_box.ld, 7200);
+	if (m_set_extruder_trimpot)
+		writer.set_extruder_trimpot(750); 			// Increase the extruder driver current to allow fast ramming.
 
     for (size_t idx_tool = 0; idx_tool < tools.size(); ++ idx_tool) {
         unsigned int tool = tools[idx_tool];
@@ -533,8 +549,11 @@ WipeTower::ToolChangeResult WipeTowerPrusaMM::prime(
                             // in the output gcode - we should not remember emitting them (we will output them twice in the worst case)
 
 	// Reset the extruder current to a normal value.
-	writer.set_extruder_trimpot(550)
-		  .feedrate(6000)
+	if (m_set_extruder_trimpot)
+		writer.set_extruder_trimpot(550);
+	if (m_retain_speed_override)
+		writer.speed_override_restore();
+	writer.feedrate(6000)
 		  .flush_planner_queue()
 		  .reset_extruder()
 		  .append("; CP PRIMING END\n"
@@ -600,14 +619,17 @@ WipeTower::ToolChangeResult WipeTowerPrusaMM::tool_change(unsigned int tool, boo
 				"; CP TOOLCHANGE START\n")
 		.comment_with_value(" toolchange #", m_num_tool_changes + 1) // the number is zero-based
 		.comment_material(m_filpar[m_current_tool].material)
-		.append(";--------------------\n")
-		.speed_override(100);
+		.append(";--------------------\n");
+	if (m_retain_speed_override)
+		writer.speed_override_backup();
+	writer.speed_override(100);
 
 	xy initial_position = cleaning_box.ld + WipeTower::xy(0.f,m_depth_traversed);
     writer.set_initial_position(initial_position, m_wipe_tower_width, m_wipe_tower_depth, m_internal_rotation);
 
     // Increase the extruder driver current to allow fast ramming.
-    writer.set_extruder_trimpot(750);
+	if (m_set_extruder_trimpot)
+		writer.set_extruder_trimpot(550);
 
     // Ram the hot material out of the melt zone, retract the filament into the cooling tubes and let it cool.
     if (tool != (unsigned int)-1){ 			// This is not the last change.
@@ -635,8 +657,11 @@ WipeTower::ToolChangeResult WipeTowerPrusaMM::tool_change(unsigned int tool, boo
         }
     }
 
-    writer.set_extruder_trimpot(550)    // Reset the extruder current to a normal value.
-          .feedrate(6000)
+	if (m_set_extruder_trimpot)
+		writer.set_extruder_trimpot(550);    // Reset the extruder current to a normal value.
+	if (m_retain_speed_override)
+		writer.speed_override_restore();
+    writer.feedrate(6000)
           .flush_planner_queue()
           .reset_extruder()
           .append("; CP TOOLCHANGE END\n"
@@ -881,14 +906,15 @@ void WipeTowerPrusaMM::toolchange_Change(
 	case FLEX:  speed_override = 35; break;
 	default:    speed_override = 100;
 	}
-	writer.set_tool(new_tool)
-	      .speed_override(speed_override)
-	      .flush_planner_queue();
+	writer.set_tool(new_tool);
+	if (m_retain_speed_override)
+		assert(speed_override == 100);
+	else
+		writer.speed_override(speed_override);
+	writer.flush_planner_queue();
 	m_current_tool = new_tool;
 }
 
-
-
 void WipeTowerPrusaMM::toolchange_Load(
 	PrusaMultiMaterial::Writer &writer,
 	const box_coordinates  &cleaning_box)
@@ -916,12 +942,10 @@ void WipeTowerPrusaMM::toolchange_Load(
 		  .resume_preview();
 
 	// Reset the extruder current to the normal value.
-	writer.set_extruder_trimpot(550);
+	if (m_set_extruder_trimpot)
+		writer.set_extruder_trimpot(550);
 }
 
-
-
-
 // Wipe the newly loaded filament until the end of the assigned wipe area.
 void WipeTowerPrusaMM::toolchange_Wipe(
 	PrusaMultiMaterial::Writer &writer,

src/libslic3r/GCode/WipeTowerPrusaMM.hpp

@@ -44,7 +44,8 @@ public:
 	// width		-- width of wipe tower in mm ( default 60 mm - leave as it is )
 	// wipe_area	-- space available for one toolchange in mm
 	WipeTowerPrusaMM(float x, float y, float width, float rotation_angle, float cooling_tube_retraction,
-                     float cooling_tube_length, float parking_pos_retraction, float extra_loading_move, float bridging,
+                     float cooling_tube_length, float parking_pos_retraction, float extra_loading_move, 
+                     float bridging, bool set_extruder_trimpot,
                      const std::vector<std::vector<float>>& wiping_matrix, unsigned int initial_tool) :
     m_wipe_tower_pos(x, y),
 		m_wipe_tower_width(width),
@@ -57,6 +58,7 @@ public:
         m_parking_pos_retraction(parking_pos_retraction),
         m_extra_loading_move(extra_loading_move),
 		m_bridging(bridging),
+		m_set_extruder_trimpot(set_extruder_trimpot),
         m_current_tool(initial_tool),
         wipe_volumes(wiping_matrix)
         {}
@@ -73,6 +75,11 @@ public:
         m_filpar.push_back(FilamentParameters());
 
         m_filpar[idx].material = material;
+        if (material == FLEX || material == SCAFF || material == PVA) {
+    		// MMU2 lowers the print speed using the speed override (M220) for printing of soluble PVA/BVOH and flex materials.
+    		// Therefore it does not make sense to use the new M220 B and M220 R (backup / restore).
+        	m_retain_speed_override = false;
+        }
         m_filpar[idx].temperature = temp;
         m_filpar[idx].first_layer_temperature = first_layer_temp;
         m_filpar[idx].loading_speed = loading_speed;
@@ -212,6 +219,8 @@ private:
     float           m_parking_pos_retraction    = 0.f;
     float           m_extra_loading_move        = 0.f;
     float           m_bridging                  = 0.f;
+    bool            m_set_extruder_trimpot      = false;
+    bool 			m_retain_speed_override		= true;
     bool            m_adhesion                  = true;
 
 	float m_perimeter_width = 0.4 * Width_To_Nozzle_Ratio; // Width of an extrusion line, also a perimeter spacing for 100% infill.

src/libslic3r/GCodeTimeEstimator.cpp

@@ -290,7 +290,8 @@ namespace Slic3r {
         // buffer line to export only when greater than 64K to reduce writing calls
         std::string export_line;
         char time_line[64];
-        while (std::getline(in, gcode_line))
+		G1LineIdToBlockIdMap::const_iterator it_line_id = _g1_line_ids.begin();
+		while (std::getline(in, gcode_line))
         {
             if (!in.good())
             {
@@ -310,29 +311,29 @@ namespace Slic3r {
 
             // add remaining time lines where needed
             _parser.parse_line(gcode_line,
-                [this, &g1_lines_count, &last_recorded_time, &time_line, &gcode_line, time_mask, interval](GCodeReader& reader, const GCodeReader::GCodeLine& line)
+                [this, &it_line_id, &g1_lines_count, &last_recorded_time, &time_line, &gcode_line, time_mask, interval](GCodeReader& reader, const GCodeReader::GCodeLine& line)
             {
                 if (line.cmd_is("G1"))
                 {
                     ++g1_lines_count;
 
-                    if (!line.has_e())
-                        return;
+					assert(it_line_id == _g1_line_ids.end() || it_line_id->first >= g1_lines_count);
 
-                    G1LineIdToBlockIdMap::const_iterator it = _g1_line_ids.find(g1_lines_count);
-                    if ((it != _g1_line_ids.end()) && (it->second < (unsigned int)_blocks.size()))
-                    {
-                        const Block& block = _blocks[it->second];
-                        if (block.elapsed_time != -1.0f)
+					const Block *block = nullptr;
+					if (it_line_id != _g1_line_ids.end() && it_line_id->first == g1_lines_count) {
+						if (line.has_e() && it_line_id->second < (unsigned int)_blocks.size())
+							block = &_blocks[it_line_id->second];
+						++it_line_id;
+					}
+
+					if (block != nullptr && block->elapsed_time != -1.0f) {
+                        float block_remaining_time = _time - block->elapsed_time;
+                        if (std::abs(last_recorded_time - block_remaining_time) > interval)
                         {
-                            float block_remaining_time = _time - block.elapsed_time;
-                            if (std::abs(last_recorded_time - block_remaining_time) > interval)
-                            {
-                                sprintf(time_line, time_mask.c_str(), std::to_string((int)(100.0f * block.elapsed_time / _time)).c_str(), _get_time_minutes(block_remaining_time).c_str());
-                                gcode_line += time_line;
+                            sprintf(time_line, time_mask.c_str(), std::to_string((int)(100.0f * block->elapsed_time / _time)).c_str(), _get_time_minutes(block_remaining_time).c_str());
+                            gcode_line += time_line;
 
-                                last_recorded_time = block_remaining_time;
-                            }
+                            last_recorded_time = block_remaining_time;
                         }
                     }
                 }
@@ -667,6 +668,15 @@ namespace Slic3r {
         return _get_time_minutes(get_time());
     }
 
+    // Return an estimate of the memory consumed by the time estimator.
+	size_t GCodeTimeEstimator::memory_used() const
+    {
+        size_t out = sizeof(*this);
+		out += SLIC3R_STDVEC_MEMSIZE(this->_blocks, Block);
+		out += SLIC3R_STDVEC_MEMSIZE(this->_g1_line_ids, G1LineIdToBlockId);
+        return out;
+    }
+
     void GCodeTimeEstimator::_reset()
     {
         _curr.reset();
@@ -1072,7 +1082,7 @@ namespace Slic3r {
 
         // adds block to blocks list
         _blocks.emplace_back(block);
-        _g1_line_ids.insert(G1LineIdToBlockIdMap::value_type(get_g1_line_id(), (unsigned int)_blocks.size() - 1));
+        _g1_line_ids.emplace_back(G1LineIdToBlockIdMap::value_type(get_g1_line_id(), (unsigned int)_blocks.size() - 1));
     }
 
     void GCodeTimeEstimator::_processG4(const GCodeReader::GCodeLine& line)
@@ -1223,7 +1233,8 @@ namespace Slic3r {
             return;
 
         // see http://reprap.org/wiki/G-code#M203:_Set_maximum_feedrate
-        float factor = (dialect == gcfMarlin) ? 1.0f : MMMIN_TO_MMSEC;
+        // http://smoothieware.org/supported-g-codes
+        float factor = (dialect == gcfMarlin || dialect == gcfSmoothie) ? 1.0f : MMMIN_TO_MMSEC;
 
         if (line.has_x())
             set_axis_max_feedrate(X, line.x() * factor);

src/libslic3r/GCodeTimeEstimator.hpp

@@ -209,7 +209,8 @@ namespace Slic3r {
         typedef std::map<Block::EMoveType, MoveStats> MovesStatsMap;
 #endif // ENABLE_MOVE_STATS
 
-        typedef std::map<unsigned int, unsigned int> G1LineIdToBlockIdMap;
+        typedef std::pair<unsigned int, unsigned int> G1LineIdToBlockId;
+        typedef std::vector<G1LineIdToBlockId> G1LineIdToBlockIdMap;
 
     private:
         EMode _mode;
@@ -338,6 +339,9 @@ namespace Slic3r {
         // Returns the estimated time, in minutes (integer)
         std::string get_time_minutes() const;
 
+        // Return an estimate of the memory consumed by the time estimator.
+        size_t memory_used() const;
+
     private:
         void _reset();
         void _reset_time();

src/libslic3r/Layer.cpp

@@ -17,6 +17,16 @@ Layer::~Layer()
     m_regions.clear();
 }
 
+// Test whether whether there are any slices assigned to this layer.
+bool Layer::empty() const
+{
+	for (const LayerRegion *layerm : m_regions)
+        if (layerm != nullptr && ! layerm->slices.empty())
+            // Non empty layer.
+            return false;
+    return true;
+}
+
 LayerRegion* Layer::add_region(PrintRegion* print_region)
 {
     m_regions.emplace_back(new LayerRegion(this, print_region));

src/libslic3r/Layer.hpp

@@ -114,7 +114,8 @@ public:
     LayerRegion*            get_region(int idx) { return m_regions[idx]; }
     LayerRegion*            add_region(PrintRegion* print_region);
     const LayerRegionPtrs&  regions() const { return m_regions; }
-    
+    // Test whether whether there are any slices assigned to this layer.
+    bool                    empty() const;    
     void                    make_slices();
     void                    merge_slices();
     template <class T> bool any_internal_region_slice_contains(const T &item) const {

src/libslic3r/Line.cpp

@@ -34,23 +34,22 @@ bool Line::intersection_infinite(const Line &other, Point* point) const
     return true;
 }
 
-/* distance to the closest point of line */
-double Line::distance_to(const Point &point) const
+// Distance to the closest point of line.
+double Line::distance_to_squared(const Point &point, const Point &a, const Point &b)
 {
-    const Line   &line = *this;
-    const Vec2d   v  = (line.b - line.a).cast<double>();
-    const Vec2d   va = (point  - line.a).cast<double>();
+    const Vec2d   v  = (b - a).cast<double>();
+    const Vec2d   va = (point  - a).cast<double>();
     const double  l2 = v.squaredNorm();  // avoid a sqrt
     if (l2 == 0.0) 
-        // line.a == line.b case
-        return va.norm();
-    // Consider the line extending the segment, parameterized as line.a + t (line.b - line.a).
+        // a == b case
+        return va.squaredNorm();
+    // Consider the line extending the segment, parameterized as a + t (b - a).
     // We find projection of this point onto the line. 
-    // It falls where t = [(this-line.a) . (line.b-line.a)] / |line.b-line.a|^2
+    // It falls where t = [(this-a) . (b-a)] / |b-a|^2
     const double t = va.dot(v) / l2;
-    if (t < 0.0)      return va.norm();  // beyond the 'a' end of the segment
-    else if (t > 1.0) return (point - line.b).cast<double>().norm();  // beyond the 'b' end of the segment
-    return (t * v - va).norm();
+    if (t < 0.0)      return va.squaredNorm();  // beyond the 'a' end of the segment
+    else if (t > 1.0) return (point - b).cast<double>().squaredNorm();  // beyond the 'b' end of the segment
+    return (t * v - va).squaredNorm();
 }
 
 double Line::perp_distance_to(const Point &point) const

src/libslic3r/Line.hpp

@@ -31,7 +31,8 @@ public:
     Point  midpoint() const { return (this->a + this->b) / 2; }
     bool   intersection_infinite(const Line &other, Point* point) const;
     bool   operator==(const Line &rhs) const { return this->a == rhs.a && this->b == rhs.b; }
-    double distance_to(const Point &point) const;
+    double distance_to_squared(const Point &point) const { return distance_to_squared(point, this->a, this->b); }
+    double distance_to(const Point &point) const { return distance_to(point, this->a, this->b); }
     double perp_distance_to(const Point &point) const;
     bool   parallel_to(double angle) const;
     bool   parallel_to(const Line &line) const { return this->parallel_to(line.direction()); }
@@ -43,6 +44,9 @@ public:
     bool   intersection(const Line& line, Point* intersection) const;
     double ccw(const Point& point) const { return point.ccw(*this); }
 
+    static double distance_to_squared(const Point &point, const Point &a, const Point &b);
+    static double distance_to(const Point &point, const Point &a, const Point &b) { return sqrt(distance_to_squared(point, a, b)); }
+
     Point a;
     Point b;
 };

src/libslic3r/Model.cpp

@@ -809,6 +809,25 @@ TriangleMesh ModelObject::raw_mesh() const
     return mesh;
 }
 
+// Non-transformed (non-rotated, non-scaled, non-translated) sum of all object volumes.
+TriangleMesh ModelObject::full_raw_mesh() const
+{
+    TriangleMesh mesh;
+    for (const ModelVolume *v : this->volumes)
+#if ENABLE_MODELVOLUME_TRANSFORM
+    {
+        TriangleMesh vol_mesh(v->mesh);
+        vol_mesh.transform(v->get_matrix());
+        mesh.merge(vol_mesh);
+    }
+#else
+    {
+        mesh.merge(v->mesh);
+    }
+#endif // ENABLE_MODELVOLUME_TRANSFORM
+    return mesh;
+}
+
 // A transformed snug bounding box around the non-modifier object volumes, without the translation applied.
 // This bounding box is only used for the actual slicing.
 BoundingBoxf3 ModelObject::raw_bounding_box() const
@@ -964,6 +983,16 @@ void ModelObject::mirror(Axis axis)
     this->invalidate_bounding_box();
 }
 
+void ModelObject::scale_mesh(const Vec3d &versor)
+{
+    for (ModelVolume *v : this->volumes)
+    {
+        v->scale_geometry(versor);
+        v->set_offset(versor.cwiseProduct(v->get_offset()));
+    }
+    this->invalidate_bounding_box();
+}
+
 size_t ModelObject::materials_count() const
 {
     std::set<t_model_material_id> material_ids;
@@ -1495,6 +1524,12 @@ void ModelVolume::mirror(Axis axis)
 #endif // ENABLE_MODELVOLUME_TRANSFORM
 }
 
+void ModelVolume::scale_geometry(const Vec3d& versor)
+{
+    mesh.scale(versor);
+    m_convex_hull.scale(versor);
+}
+
 #if !ENABLE_MODELVOLUME_TRANSFORM
 void ModelInstance::set_rotation(const Vec3d& rotation)
 {

src/libslic3r/Model.hpp

@@ -218,6 +218,8 @@ public:
     // Non-transformed (non-rotated, non-scaled, non-translated) sum of non-modifier object volumes.
     // Currently used by ModelObject::mesh() and to calculate the 2D envelope for 2D platter.
     TriangleMesh raw_mesh() const;
+    // Non-transformed (non-rotated, non-scaled, non-translated) sum of all object volumes.
+    TriangleMesh full_raw_mesh() const;
     // A transformed snug bounding box around the non-modifier object volumes, without the translation applied.
     // This bounding box is only used for the actual slicing.
     BoundingBoxf3 raw_bounding_box() const;
@@ -235,6 +237,9 @@ public:
     void rotate(double angle, Axis axis);
     void rotate(double angle, const Vec3d& axis);
     void mirror(Axis axis);
+
+    void scale_mesh(const Vec3d& versor);
+
     size_t materials_count() const;
     size_t facets_count() const;
     bool needed_repair() const;
@@ -329,6 +334,8 @@ public:
     void                rotate(double angle, const Vec3d& axis);
     void                mirror(Axis axis);
 
+    void                scale_geometry(const Vec3d& versor);
+
 #if ENABLE_MODELVOLUME_TRANSFORM
     // translates the mesh and the convex hull so that the origin of their vertices is in the center of this volume's bounding box
     void                center_geometry();

src/libslic3r/MultiPoint.cpp

@@ -162,45 +162,51 @@ bool MultiPoint::first_intersection(const Line& line, Point* intersection) const
     return found;
 }
 
-//FIXME This is very inefficient in term of memory use.
-// The recursive algorithm shall run in place, not allocating temporary data in each recursion.
-Points
-MultiPoint::_douglas_peucker(const Points &points, const double tolerance)
+std::vector<Point> MultiPoint::_douglas_peucker(const std::vector<Point>& pts, const double tolerance)
 {
-    assert(points.size() >= 2);
-    Points results;
-    double dmax = 0;
-    size_t index = 0;
-    Line full(points.front(), points.back());
-    for (Points::const_iterator it = points.begin() + 1; it != points.end(); ++it) {
-        // we use shortest distance, not perpendicular distance
-        double d = full.distance_to(*it);
-        if (d > dmax) {
-            index = it - points.begin();
-            dmax = d;
+    std::vector<Point> result_pts;
+    if (! pts.empty()) {
+        const Point  *anchor      = &pts.front();
+        size_t        anchor_idx  = 0;
+        const Point  *floater     = &pts.back();
+        size_t        floater_idx = pts.size() - 1;
+        result_pts.reserve(pts.size());
+        result_pts.emplace_back(*anchor);
+        if (anchor_idx != floater_idx) {
+            assert(pts.size() > 1);
+            std::vector<size_t> dpStack;
+            dpStack.reserve(pts.size());
+            dpStack.emplace_back(floater_idx);
+            for (;;) {
+                double max_distSq   = 0.0;
+                size_t furthest_idx = anchor_idx;
+                // find point furthest from line seg created by (anchor, floater) and note it
+                for (size_t i = anchor_idx + 1; i < floater_idx; ++ i) {
+                    double dist = Line::distance_to_squared(pts[i], *anchor, *floater);
+                    if (dist > max_distSq) {
+                        max_distSq   = dist;
+                        furthest_idx = i;
+                    }
+                }
+                // remove point if less than tolerance
+                if (max_distSq <= tolerance) {
+                    result_pts.emplace_back(*floater);
+                    anchor_idx = floater_idx;
+                    anchor     = floater;
+                    assert(dpStack.back() == floater_idx);
+                    dpStack.pop_back();
+                    if (dpStack.empty())
+                        break;
+                    floater_idx = dpStack.back();
+                } else {
+                    floater_idx = furthest_idx;
+                    dpStack.emplace_back(floater_idx);
+                }
+                floater = &pts[floater_idx];
+            }
         }
     }
-    if (dmax >= tolerance) {
-        Points dp0;
-        dp0.reserve(index + 1);
-        dp0.insert(dp0.end(), points.begin(), points.begin() + index + 1);
-        // Recursive call.
-        Points dp1 = MultiPoint::_douglas_peucker(dp0, tolerance);
-        results.reserve(results.size() + dp1.size() - 1);
-        results.insert(results.end(), dp1.begin(), dp1.end() - 1);
-        
-        dp0.clear();
-        dp0.reserve(points.size() - index);
-        dp0.insert(dp0.end(), points.begin() + index, points.end());
-        // Recursive call.
-        dp1 = MultiPoint::_douglas_peucker(dp0, tolerance);
-        results.reserve(results.size() + dp1.size());
-        results.insert(results.end(), dp1.begin(), dp1.end());
-    } else {
-        results.push_back(points.front());
-        results.push_back(points.back());
-    }
-    return results;
+    return result_pts;
 }
 
 // Visivalingam simplification algorithm https://github.com/slic3r/Slic3r/pull/3825

src/libslic3r/Print.cpp

@@ -8,13 +8,14 @@
 #include "SupportMaterial.hpp"
 #include "GCode.hpp"
 #include "GCode/WipeTowerPrusaMM.hpp"
-#include <algorithm>
-#include <unordered_set>
-#include <boost/log/trivial.hpp>
+#include "Utils.hpp"
 
 #include "PrintExport.hpp"
 
+#include <algorithm>
+#include <unordered_set>
 #include <boost/filesystem/path.hpp>
+#include <boost/log/trivial.hpp>
 
 //! macro used to mark string used at localization, 
 //! return same string
@@ -213,6 +214,7 @@ bool Print::invalidate_state_by_config_options(const std::vector<t_config_option
             || opt_key == "filament_cooling_final_speed"
             || opt_key == "filament_ramming_parameters"
             || opt_key == "gcode_flavor"
+            || opt_key == "high_current_on_filament_swap"
             || opt_key == "infill_first"
             || opt_key == "single_extruder_multi_material"
             || opt_key == "spiral_vase"
@@ -1051,10 +1053,12 @@ Print::ApplyStatus Print::apply(const Model &model, const DynamicPrintConfig &co
                             goto print_object_end;
                     } else {
                         this_region_config = region_config_from_model_volume(m_default_region_config, volume, num_extruders);
-                        for (size_t i = 0; i < region_id; ++ i)
-                            if (m_regions[i]->config().equals(this_region_config))
-                                // Regions were merged. Reset this print_object.
-                                goto print_object_end;
+						for (size_t i = 0; i < region_id; ++i) {
+							const PrintRegion &region_other = *m_regions[i];
+							if (region_other.m_refcnt != 0 && region_other.config().equals(this_region_config))
+								// Regions were merged. Reset this print_object.
+								goto print_object_end;
+						}
                         this_region_config_set = true;
                     }
                 }
@@ -1092,8 +1096,10 @@ Print::ApplyStatus Print::apply(const Model &model, const DynamicPrintConfig &co
 			bool         fresh = print_object.region_volumes.empty();
             unsigned int volume_id = 0;
             for (const ModelVolume *volume : model_object.volumes) {
-                if (! volume->is_model_part() && ! volume->is_modifier())
-                    continue;
+                if (! volume->is_model_part() && ! volume->is_modifier()) {
+					++ volume_id;
+					continue;
+				}
                 int region_id = -1;
                 if (&print_object == &print_object0) {
                     // Get the config applied to this volume.
@@ -1101,9 +1107,10 @@ Print::ApplyStatus Print::apply(const Model &model, const DynamicPrintConfig &co
                     // Find an existing print region with the same config.
 					int idx_empty_slot = -1;
 					for (int i = 0; i < (int)m_regions.size(); ++ i) {
-						if (m_regions[i]->m_refcnt == 0)
-							idx_empty_slot = i;
-                        else if (config.equals(m_regions[i]->config())) {
+						if (m_regions[i]->m_refcnt == 0) {
+                            if (idx_empty_slot == -1)
+                                idx_empty_slot = i;
+                        } else if (config.equals(m_regions[i]->config())) {
                             region_id = i;
                             break;
                         }
@@ -1469,7 +1476,7 @@ void Print::auto_assign_extruders(ModelObject* model_object) const
 // Slicing process, running at a background thread.
 void Print::process()
 {
-    BOOST_LOG_TRIVIAL(info) << "Staring the slicing process.";
+    BOOST_LOG_TRIVIAL(info) << "Staring the slicing process." << log_memory_info();
     for (PrintObject *obj : m_objects)
         obj->make_perimeters();
     this->set_status(70, "Infilling layers");
@@ -1501,7 +1508,7 @@ void Print::process()
         }
        this->set_done(psWipeTower);
     }
-    BOOST_LOG_TRIVIAL(info) << "Slicing process finished.";
+    BOOST_LOG_TRIVIAL(info) << "Slicing process finished." << log_memory_info();
 }
 
 // G-code export process, running at a background thread.
@@ -1768,7 +1775,8 @@ void Print::_make_wipe_tower()
         float(m_config.wipe_tower_width.value),
         float(m_config.wipe_tower_rotation_angle.value), float(m_config.cooling_tube_retraction.value),
         float(m_config.cooling_tube_length.value), float(m_config.parking_pos_retraction.value),
-        float(m_config.extra_loading_move.value), float(m_config.wipe_tower_bridging), wipe_volumes,
+        float(m_config.extra_loading_move.value), float(m_config.wipe_tower_bridging), 
+        m_config.high_current_on_filament_swap.value, wipe_volumes,
         m_wipe_tower_data.tool_ordering.first_extruder());
 
     //wipe_tower.set_retract();

src/libslic3r/Print.hpp

@@ -107,8 +107,8 @@ public:
     // adds region_id, too, if necessary
     void add_region_volume(unsigned int region_id, int volume_id) {
         if (region_id >= region_volumes.size())
-            region_volumes.resize(region_id + 1);
-        region_volumes[region_id].push_back(volume_id);
+			region_volumes.resize(region_id + 1);
+        region_volumes[region_id].emplace_back(volume_id);
     }
     // This is the *total* layer count (including support layers)
     // this value is not supposed to be compared with Layer::id

src/libslic3r/PrintConfig.cpp

@@ -925,6 +925,15 @@ void PrintConfigDef::init_fff_params()
     def->mode = comExpert;
     def->default_value = new ConfigOptionEnum<GCodeFlavor>(gcfRepRap);
 
+    def = this->add("high_current_on_filament_swap", coBool);
+    def->label = L("High extruder current on filament swap");
+    def->tooltip = L("It may be beneficial to increase the extruder motor current during the filament exchange"
+                   " sequence to allow for rapid ramming feed rates and to overcome resistance when loading"
+                   " a filament with an ugly shaped tip.");
+    def->cli = "high-current-on-filament-swap!";
+    def->mode = comExpert;
+    def->default_value = new ConfigOptionBool(0);
+
     def = this->add("infill_acceleration", coFloat);
     def->label = L("Infill");
     def->tooltip = L("This is the acceleration your printer will use for infill. Set zero to disable "
@@ -2394,8 +2403,10 @@ void PrintConfigDef::init_sla_params()
     def->tooltip = L("Display orientation");
     def->cli = "display-orientation=s";
     def->enum_keys_map = &ConfigOptionEnum<SLADisplayOrientation>::get_enum_values();
-    def->enum_values.push_back("Landscape");
-    def->enum_values.push_back("Portrait");
+    def->enum_values.push_back("landscape");
+    def->enum_values.push_back("portrait");
+    def->enum_labels.push_back(L("Landscape"));
+    def->enum_labels.push_back(L("Portrait"));
     def->default_value = new ConfigOptionEnum<SLADisplayOrientation>(sladoPortrait);
 
     def = this->add("printer_correction", coFloats);

src/libslic3r/PrintConfig.hpp

@@ -36,7 +36,7 @@ enum GCodeFlavor {
 };
 
 enum PrintHostType {
-    htOctoPrint, htDuet,
+    htOctoPrint, htDuet, htSL1,
 };
 
 enum InfillPattern {
@@ -155,8 +155,8 @@ template<> inline const t_config_enum_values& ConfigOptionEnum<FilamentType>::ge
 
 template<> inline const t_config_enum_values& ConfigOptionEnum<SLADisplayOrientation>::get_enum_values() {
     static const t_config_enum_values keys_map = {
-        { "Landscape", sladoLandscape},
-        { "Portrait",  sladoPortrait}
+        { "landscape", sladoLandscape},
+        { "portrait",  sladoPortrait}
     };
 
     return keys_map;
@@ -627,6 +627,7 @@ public:
     ConfigOptionBool                variable_layer_height;
     ConfigOptionFloat               cooling_tube_retraction;
     ConfigOptionFloat               cooling_tube_length;
+    ConfigOptionBool                high_current_on_filament_swap;
     ConfigOptionFloat               parking_pos_retraction;
     ConfigOptionBool                remaining_times;
     ConfigOptionBool                silent_mode;
@@ -695,6 +696,7 @@ protected:
         OPT_PTR(variable_layer_height);
         OPT_PTR(cooling_tube_retraction);
         OPT_PTR(cooling_tube_length);
+        OPT_PTR(high_current_on_filament_swap);
         OPT_PTR(parking_pos_retraction);
         OPT_PTR(remaining_times);
         OPT_PTR(silent_mode);

src/libslic3r/PrintObject.cpp

@@ -5,6 +5,7 @@
 #include "SupportMaterial.hpp"
 #include "Surface.hpp"
 #include "Slicing.hpp"
+#include "Utils.hpp"
 
 #include <utility>
 #include <boost/log/trivial.hpp>
@@ -132,7 +133,7 @@ void PrintObject::make_perimeters()
         return;
 
     m_print->set_status(20, "Generating perimeters");
-    BOOST_LOG_TRIVIAL(info) << "Generating perimeters...";
+    BOOST_LOG_TRIVIAL(info) << "Generating perimeters..." << log_memory_info();
     
     // merge slices if they were split into types
     if (this->typed_slices) {
@@ -253,7 +254,7 @@ void PrintObject::prepare_infill()
     // Decide what surfaces are to be filled.
     // Here the S_TYPE_TOP / S_TYPE_BOTTOMBRIDGE / S_TYPE_BOTTOM infill is turned to just S_TYPE_INTERNAL if zero top / bottom infill layers are configured.
     // Also tiny S_TYPE_INTERNAL surfaces are turned to S_TYPE_INTERNAL_SOLID.
-    BOOST_LOG_TRIVIAL(info) << "Preparing fill surfaces...";
+    BOOST_LOG_TRIVIAL(info) << "Preparing fill surfaces..." << log_memory_info();
     for (auto *layer : m_layers)
         for (auto *region : layer->m_regions) {
             region->prepare_fill_surfaces();
@@ -384,6 +385,14 @@ void PrintObject::generate_support_material()
             m_print->set_status(85, "Generating support material");    
             this->_generate_support_material();
             m_print->throw_if_canceled();
+        } else {
+#if 0
+            // Printing without supports. Empty layer means some objects or object parts are levitating,
+            // therefore they cannot be printed without supports.
+            for (const Layer *layer : m_layers)
+                if (layer->empty())
+                    throw std::runtime_error("Levitating objects cannot be printed without supports.");
+#endif
         }
         this->set_done(posSupportMaterial);
     }
@@ -522,11 +531,13 @@ bool PrintObject::invalidate_state_by_config_options(const std::vector<t_config_
             || opt_key == "perimeter_speed"
             || opt_key == "small_perimeter_speed"
             || opt_key == "solid_infill_speed"
-            || opt_key == "top_solid_infill_speed"
-            || opt_key == "wipe_into_infill"    // when these these two are changed, we only need to invalidate the wipe tower,
-            || opt_key == "wipe_into_objects"   // which we already did at the very beginning - nothing more to be done
-            ) {
-            // these options only affect G-code export, so nothing to invalidate
+            || opt_key == "top_solid_infill_speed") {
+            invalidated |= m_print->invalidate_step(psGCodeExport);
+        } else if (
+               opt_key == "wipe_into_infill"
+            || opt_key == "wipe_into_objects") {
+            invalidated |= m_print->invalidate_step(psWipeTower);
+            invalidated |= m_print->invalidate_step(psGCodeExport);
         } else {
             // for legacy, if we can't handle this option let's invalidate all steps
             this->invalidate_all_steps();
@@ -547,15 +558,15 @@ bool PrintObject::invalidate_step(PrintObjectStep step)
     
     // propagate to dependent steps
     if (step == posPerimeters) {
-        invalidated |= this->invalidate_step(posPrepareInfill);
+		invalidated |= this->invalidate_steps({ posPrepareInfill, posInfill });
         invalidated |= m_print->invalidate_steps({ psSkirt, psBrim });
     } else if (step == posPrepareInfill) {
         invalidated |= this->invalidate_step(posInfill);
     } else if (step == posInfill) {
         invalidated |= m_print->invalidate_steps({ psSkirt, psBrim });
     } else if (step == posSlice) {
-        invalidated |= this->invalidate_steps({ posPerimeters, posSupportMaterial });
-        invalidated |= m_print->invalidate_step(psWipeTower);
+		invalidated |= this->invalidate_steps({ posPerimeters, posPrepareInfill, posInfill, posSupportMaterial });
+		invalidated |= m_print->invalidate_steps({ psSkirt, psBrim });
     } else if (step == posSupportMaterial)
         invalidated |= m_print->invalidate_steps({ psSkirt, psBrim });
 
@@ -591,7 +602,7 @@ bool PrintObject::has_support_material() const
 // If a part of a region is of stBottom and stTop, the stBottom wins.
 void PrintObject::detect_surfaces_type()
 {
-    BOOST_LOG_TRIVIAL(info) << "Detecting solid surfaces...";
+    BOOST_LOG_TRIVIAL(info) << "Detecting solid surfaces..." << log_memory_info();
 
     // Interface shells: the intersecting parts are treated as self standing objects supporting each other.
     // Each of the objects will have a full number of top / bottom layers, even if these top / bottom layers
@@ -783,7 +794,7 @@ void PrintObject::detect_surfaces_type()
 
 void PrintObject::process_external_surfaces()
 {
-    BOOST_LOG_TRIVIAL(info) << "Processing external surfaces...";
+    BOOST_LOG_TRIVIAL(info) << "Processing external surfaces..." << log_memory_info();
 
 	for (size_t region_id = 0; region_id < this->region_volumes.size(); ++region_id) {
         const PrintRegion &region = *m_print->regions()[region_id];
@@ -808,7 +819,7 @@ void PrintObject::discover_vertical_shells()
 {
     PROFILE_FUNC();
 
-    BOOST_LOG_TRIVIAL(info) << "Discovering vertical shells...";
+    BOOST_LOG_TRIVIAL(info) << "Discovering vertical shells..." << log_memory_info();
 
     struct DiscoverVerticalShellsCacheEntry
     {
@@ -1192,7 +1203,7 @@ void PrintObject::discover_vertical_shells()
    sparse infill */
 void PrintObject::bridge_over_infill()
 {
-    BOOST_LOG_TRIVIAL(info) << "Bridge over infill...";
+    BOOST_LOG_TRIVIAL(info) << "Bridge over infill..." << log_memory_info();
 
     for (size_t region_id = 0; region_id < this->region_volumes.size(); ++ region_id) {
         const PrintRegion &region = *m_print->regions()[region_id];
@@ -1377,7 +1388,7 @@ bool PrintObject::update_layer_height_profile()
 // this should be idempotent
 void PrintObject::_slice()
 {
-    BOOST_LOG_TRIVIAL(info) << "Slicing objects...";
+    BOOST_LOG_TRIVIAL(info) << "Slicing objects..." << log_memory_info();
 
     this->typed_slices = false;
 
@@ -1463,10 +1474,8 @@ void PrintObject::_slice()
     BOOST_LOG_TRIVIAL(debug) << "Slicing objects - removing top empty layers";
     while (! m_layers.empty()) {
         const Layer *layer = m_layers.back();
-        for (size_t region_id = 0; region_id < this->region_volumes.size(); ++ region_id)
-            if (layer->m_regions[region_id] != nullptr && ! layer->m_regions[region_id]->slices.empty())
-                // Non empty layer.
-                goto end;
+        if (! layer->empty())
+            goto end;
         delete layer;
         m_layers.pop_back();
 		if (! m_layers.empty())
@@ -1701,7 +1710,7 @@ void PrintObject::_make_perimeters()
     if (! this->set_started(posPerimeters))
         return;
 
-    BOOST_LOG_TRIVIAL(info) << "Generating perimeters...";
+    BOOST_LOG_TRIVIAL(info) << "Generating perimeters..." << log_memory_info();
     
     // merge slices if they were split into types
     if (this->typed_slices) {

src/libslic3r/SLA/SLASupportTree.cpp

@@ -612,7 +612,9 @@ double ray_mesh_intersect(const Vec3d& s,
                           const Vec3d& dir,
                           const EigenMesh3D& m);
 
-PointSet normals(const PointSet& points, const EigenMesh3D& mesh);
+PointSet normals(const PointSet& points, const EigenMesh3D& mesh,
+                 double eps = 0.05,  // min distance from edges
+                 std::function<void()> throw_on_cancel = [](){});
 
 inline Vec2d to_vec2(const Vec3d& v3) {
     return {v3(X), v3(Y)};
@@ -1049,7 +1051,7 @@ bool SLASupportTree::generate(const PointSet &points,
         tifcl();
 
         // calculate the normals to the triangles belonging to filtered points
-        auto nmls = sla::normals(filt_pts, mesh);
+        auto nmls = sla::normals(filt_pts, mesh, cfg.head_front_radius_mm, tifcl);
 
         head_norm.resize(count, 3);
         head_pos.resize(count, 3);

src/libslic3r/SLA/SLASupportTreeIGL.cpp

@@ -1,3 +1,4 @@
+#include <cmath>
 #include "SLA/SLASupportTree.hpp"
 #include "SLA/SLABoilerPlate.hpp"
 #include "SLA/SLASpatIndex.hpp"
@@ -9,15 +10,8 @@
 #include "boost/geometry/index/rtree.hpp"
 
 #include <igl/ray_mesh_intersect.h>
-
-//#if !defined(_MSC_VER) || defined(_WIN64)
-#if 1
-#define IGL_COMPATIBLE
-#endif
-
-#ifdef IGL_COMPATIBLE
 #include <igl/point_mesh_squared_distance.h>
-#endif
+#include <igl/remove_duplicate_vertices.h>
 
 #include "SLASpatIndex.hpp"
 #include "ClipperUtils.hpp"
@@ -84,33 +78,124 @@ size_t SpatIndex::size() const
     return m_impl->m_store.size();
 }
 
-PointSet normals(const PointSet& points, const EigenMesh3D& mesh) {
-    if(points.rows() == 0 || mesh.V.rows() == 0 || mesh.F.rows() == 0) return {};
-#ifdef IGL_COMPATIBLE
+bool point_on_edge(const Vec3d& p, const Vec3d& e1, const Vec3d& e2,
+                   double eps = 0.05)
+{
+    using Line3D = Eigen::ParametrizedLine<double, 3>;
+
+    auto line = Line3D::Through(e1, e2);
+    double d = line.distance(p);
+    return std::abs(d) < eps;
+}
+
+template<class Vec> double distance(const Vec& pp1, const Vec& pp2) {
+    auto p = pp2 - pp1;
+    return std::sqrt(p.transpose() * p);
+}
+
+PointSet normals(const PointSet& points, const EigenMesh3D& emesh,
+                 double eps,
+                 std::function<void()> throw_on_cancel) {
+    if(points.rows() == 0 || emesh.V.rows() == 0 || emesh.F.rows() == 0)
+        return {};
+
     Eigen::VectorXd dists;
     Eigen::VectorXi I;
     PointSet C;
 
+    // We need to remove duplicate vertices and have a true index triangle
+    // structure
+    EigenMesh3D  mesh;
+    Eigen::VectorXi SVI, SVJ;
+    igl::remove_duplicate_vertices(emesh.V, emesh.F, 1e-6,
+                                   mesh.V, SVI, SVJ, mesh.F);
+
     igl::point_mesh_squared_distance( points, mesh.V, mesh.F, dists, I, C);
 
     PointSet ret(I.rows(), 3);
     for(int i = 0; i < I.rows(); i++) {
+        throw_on_cancel();
         auto idx = I(i);
         auto trindex = mesh.F.row(idx);
 
-        auto& p1 = mesh.V.row(trindex(0));
-        auto& p2 = mesh.V.row(trindex(1));
-        auto& p3 = mesh.V.row(trindex(2));
+        const Vec3d& p1 = mesh.V.row(trindex(0));
+        const Vec3d& p2 = mesh.V.row(trindex(1));
+        const Vec3d& p3 = mesh.V.row(trindex(2));
 
-        Eigen::Vector3d U = p2 - p1;
-        Eigen::Vector3d V = p3 - p1;
-        ret.row(i) = U.cross(V).normalized();
+        // We should check if the point lies on an edge of the hosting triangle.
+        // If it does than all the other triangles using the same two points
+        // have to be searched and the final normal should be some kind of
+        // aggregation of the participating triangle normals. We should also
+        // consider the cases where the support point lies right on a vertex
+        // of its triangle. The procedure is the same, get the neighbor
+        // triangles and calculate an average normal.
+
+        const Vec3d& p = C.row(i);
+
+        // mark the vertex indices of the edge. ia and ib marks and edge ic
+        // will mark a single vertex.
+        int ia = -1, ib = -1, ic = -1;
+
+        if(std::abs(distance(p, p1)) < eps) {
+            ic = trindex(0);
+        }
+        else if(std::abs(distance(p, p2)) < eps) {
+            ic = trindex(1);
+        }
+        else if(std::abs(distance(p, p3)) < eps) {
+            ic = trindex(2);
+        }
+        else if(point_on_edge(p, p1, p2, eps)) {
+            ia = trindex(0); ib = trindex(1);
+        }
+        else if(point_on_edge(p, p2, p3, eps)) {
+            ia = trindex(1); ib = trindex(2);
+        }
+        else if(point_on_edge(p, p1, p3, eps)) {
+            ia = trindex(0); ib = trindex(2);
+        }
+
+        std::vector<Vec3i> neigh;
+        if(ic >= 0) { // The point is right on a vertex of the triangle
+            for(int n = 0; n < mesh.F.rows(); ++n) {
+                throw_on_cancel();
+                Vec3i ni = mesh.F.row(n);
+                if((ni(X) == ic || ni(Y) == ic || ni(Z) == ic))
+                    neigh.emplace_back(ni);
+            }
+        }
+        else if(ia >= 0 && ib >= 0) { // the point is on and edge
+            // now get all the neigboring triangles
+            for(int n = 0; n < mesh.F.rows(); ++n) {
+                throw_on_cancel();
+                Vec3i ni = mesh.F.row(n);
+                if((ni(X) == ia || ni(Y) == ia || ni(Z) == ia) &&
+                   (ni(X) == ib || ni(Y) == ib || ni(Z) == ib))
+                    neigh.emplace_back(ni);
+            }
+        }
+
+        if(!neigh.empty()) { // there were neighbors to count with
+            Vec3d sumnorm(0, 0, 0);
+            for(const Vec3i& tri : neigh) {
+                const Vec3d& pt1 = mesh.V.row(tri(0));
+                const Vec3d& pt2 = mesh.V.row(tri(1));
+                const Vec3d& pt3 = mesh.V.row(tri(2));
+                Eigen::Vector3d U = pt2 - pt1;
+                Eigen::Vector3d V = pt3 - pt1;
+                sumnorm += U.cross(V).normalized();
+            }
+            sumnorm /= neigh.size();
+            ret.row(i) = sumnorm;
+        }
+        else { // point lies safely within its triangle
+            Eigen::Vector3d U = p2 - p1;
+            Eigen::Vector3d V = p3 - p1;
+            ret.row(i) = U.cross(V).normalized();
+        }
     }
 
     return ret;
-#else // TODO:  do something on 32 bit windows
-    return {};
-#endif
 }
 
 double ray_mesh_intersect(const Vec3d& s,
@@ -223,7 +308,7 @@ Segments model_boundary(const EigenMesh3D& emesh, double offs)
         pp.emplace_back(p);
     }
 
-    ExPolygons merged = union_ex(offset(pp, float(scale_(offs))), true);
+    ExPolygons merged = union_ex(Slic3r::offset(pp, float(scale_(offs))), true);
 
     for(auto& expoly : merged) {
         auto lines = expoly.lines();

src/libslic3r/SLAPrint.cpp

@@ -436,10 +436,17 @@ std::vector<float> SLAPrint::calculate_heights(const BoundingBoxf3& bb3d, float
     return heights;
 }
 
+template<class...Args>
+void report_status(SLAPrint& p, int st, const std::string& msg, Args&&...args) {
+    BOOST_LOG_TRIVIAL(info) << st << "% " << msg;
+    p.set_status(st, msg, std::forward<Args>(args)...);
+}
+
 
 void SLAPrint::process()
 {
     using namespace sla;
+    using ExPolygon = Slic3r::ExPolygon;
 
     // Assumption: at this point the print objects should be populated only with
     // the model objects we have to process and the instances are also filtered
@@ -556,9 +563,11 @@ void SLAPrint::process()
             // scaling for the sub operations
             double d = *stthis / (objcount * 100.0);
 
-            ctl.statuscb = [this, init, d](unsigned st, const std::string& msg){
-                set_status(int(init + st*d), msg);
+            ctl.statuscb = [this, init, d](unsigned st, const std::string& msg)
+            {
+                report_status(*this, int(init + st*d), msg);
             };
+
             ctl.stopcondition = [this](){ return canceled(); };
             ctl.cancelfn = [this]() { throw_if_canceled(); };
 
@@ -568,9 +577,9 @@ void SLAPrint::process()
 
             // Create the unified mesh
             auto rc = SlicingStatus::RELOAD_SCENE;
-            set_status(-1, L("Visualizing supports"));
+            report_status(*this, -1, L("Visualizing supports"));
             po.m_supportdata->support_tree_ptr->merged_mesh();
-            set_status(-1, L("Visualizing supports"), rc);
+            report_status(*this, -1, L("Visualizing supports"), rc);
         } catch(sla::SLASupportsStoppedException&) {
             // no need to rethrow
             // throw_if_canceled();
@@ -613,7 +622,7 @@ void SLAPrint::process()
 
         po.throw_if_canceled();
         auto rc = SlicingStatus::RELOAD_SCENE;
-        set_status(-1, L("Visualizing supports"), rc);
+        report_status(*this, -1, L("Visualizing supports"), rc);
     };
 
     // Slicing the support geometries similarly to the model slicing procedure.
@@ -772,8 +781,12 @@ void SLAPrint::process()
         auto lvlcnt = unsigned(m_printer_input.size());
         printer.layers(lvlcnt);
 
+        // slot is the portion of 100% that is realted to rasterization
         unsigned slot = PRINT_STEP_LEVELS[slapsRasterize];
+        // ist: initial state; pst: previous state
         unsigned ist = max_objstatus, pst = ist;
+        // coefficient to map the rasterization state (0-99) to the allocated
+        // portion (slot) of the process state
         double sd = (100 - ist) / 100.0;
         SpinMutex slck;
 
@@ -810,11 +823,11 @@ void SLAPrint::process()
             // Finish the layer for later saving it.
             printer.finish_layer(level_id);
 
-            // Status indication
+            // Status indication guarded with the spinlock
             auto st = ist + unsigned(sd*level_id*slot/m_printer_input.size());
             { std::lock_guard<SpinMutex> lck(slck);
             if( st > pst) {
-                set_status(int(st), PRINT_STEP_LABELS[slapsRasterize]);
+                report_status(*this, int(st), PRINT_STEP_LABELS[slapsRasterize]);
                 pst = st;
             }
             }
@@ -862,9 +875,14 @@ void SLAPrint::process()
     unsigned st = min_objstatus;
     unsigned incr = 0;
 
+    BOOST_LOG_TRIVIAL(info) << "Start slicing process.";
+
     // TODO: this loop could run in parallel but should not exhaust all the CPU
     // power available
     for(SLAPrintObject * po : m_objects) {
+
+        BOOST_LOG_TRIVIAL(info) << "Slicing object " << po->model_object()->name;
+
         for(size_t s = 0; s < objectsteps.size(); ++s) {
             auto currentstep = objectsteps[s];
 
@@ -876,8 +894,7 @@ void SLAPrint::process()
             st += unsigned(incr * ostepd);
 
             if(po->m_stepmask[currentstep] && po->set_started(currentstep)) {
-
-                set_status(int(st), OBJ_STEP_LABELS[currentstep]);
+                report_status(*this, int(st), OBJ_STEP_LABELS[currentstep]);
                 pobj_program[currentstep](*po);
                 po->set_done(currentstep);
             }
@@ -902,7 +919,7 @@ void SLAPrint::process()
 
         if(m_stepmask[currentstep] && set_started(currentstep))
         {
-            set_status(int(st), PRINT_STEP_LABELS[currentstep]);
+            report_status(*this, int(st), PRINT_STEP_LABELS[currentstep]);
             print_program[currentstep]();
             set_done(currentstep);
         }
@@ -911,7 +928,7 @@ void SLAPrint::process()
     }
 
     // If everything vent well
-    set_status(100, L("Slicing done"));
+    report_status(*this, 100, L("Slicing done"));
 }
 
 bool SLAPrint::invalidate_state_by_config_options(const std::vector<t_config_option_key> &opt_keys)

src/libslic3r/Technologies.hpp

@@ -36,6 +36,12 @@
 #define ENABLE_REMOVE_TABS_FROM_PLATER (1 && ENABLE_1_42_0)
 // Constrains the camera target into the scene bounding box
 #define ENABLE_CONSTRAINED_CAMERA_TARGET (1 && ENABLE_1_42_0)
+// Use wxDataViewRender instead of wxDataViewCustomRenderer
+#define ENABLE_NONCUSTOM_DATA_VIEW_RENDERING (0 && ENABLE_1_42_0)
+// Adds background texture to toolbars
+#define ENABLE_TOOLBAR_BACKGROUND_TEXTURE (1 && ENABLE_1_42_0)
+// Renders a small sphere in the center of the bounding box of the current selection when no gizmo is active
+#define ENABLE_RENDER_SELECTION_CENTER (0 && ENABLE_1_42_0)
 
 #endif // _technologies_h_
 

src/libslic3r/Utils.hpp

@@ -11,7 +11,13 @@
 namespace Slic3r {
 
 extern void set_logging_level(unsigned int level);
+extern unsigned get_logging_level();
 extern void trace(unsigned int level, const char *message);
+// Format memory allocated, separate thousands by comma.
+extern std::string format_memsize_MB(size_t n);
+// Return string to be added to the boost::log output to inform about the current process memory allocation.
+// The string is non-empty only if the loglevel >= info (3).
+extern std::string log_memory_info();
 extern void disable_multi_threading();
 
 // Set a path with GUI resource files.
@@ -182,7 +188,12 @@ public:
     void reset() { closure = Closure(); }
 };
 
-
 } // namespace Slic3r
 
+#if WIN32
+    #define SLIC3R_STDVEC_MEMSIZE(NAME, TYPE) NAME.capacity() * ((sizeof(TYPE) + __alignof(TYPE) - 1) / __alignof(TYPE)) * __alignof(TYPE)
+#else
+    #define SLIC3R_STDVEC_MEMSIZE(NAME, TYPE) NAME.capacity() * ((sizeof(TYPE) + alignof(TYPE) - 1) / alignof(TYPE)) * alignof(TYPE)
+#endif
+
 #endif // slic3r_Utils_hpp_

src/libslic3r/utils.cpp

@@ -8,6 +8,7 @@
 
 #ifdef WIN32
 #include <windows.h>
+#include <psapi.h>
 #else
 #include <unistd.h>
 #endif
@@ -58,6 +59,18 @@ void set_logging_level(unsigned int level)
     );
 }
 
+unsigned get_logging_level()
+{
+    switch (logSeverity) {
+    case boost::log::trivial::fatal : return 0;
+    case boost::log::trivial::error : return 1;
+    case boost::log::trivial::warning : return 2;
+    case boost::log::trivial::info : return 3;
+    case boost::log::trivial::debug : return 4;
+    default: return 1;
+    }
+}
+
 // Force set_logging_level(<=error) after loading of the DLL.
 // Switch boost::filesystem to utf8.
 static struct RunOnInit {
@@ -365,4 +378,71 @@ std::string xml_escape(std::string text)
     return text;
 }
 
+std::string format_memsize_MB(size_t n) 
+{
+    std::string out;
+    size_t n2 = 0;
+    size_t scale = 1;
+    // Round to MB
+    n +=  500000;
+    n /= 1000000;
+    while (n >= 1000) {
+        n2 = n2 + scale * (n % 1000);
+        n /= 1000;
+        scale *= 1000;
+    }
+    char buf[8];
+    sprintf(buf, "%d", n);
+    out = buf;
+    while (scale != 1) {
+        scale /= 1000;
+        n = n2 / scale;
+        n2 = n2  % scale;
+        sprintf(buf, ",%03d", n);
+        out += buf;
+    }
+    return out + "MB";
+}
+
+#ifdef WIN32
+
+#ifndef PROCESS_MEMORY_COUNTERS_EX
+    // MingW32 doesn't have this struct in psapi.h
+    typedef struct _PROCESS_MEMORY_COUNTERS_EX {
+      DWORD  cb;
+      DWORD  PageFaultCount;
+      SIZE_T PeakWorkingSetSize;
+      SIZE_T WorkingSetSize;
+      SIZE_T QuotaPeakPagedPoolUsage;
+      SIZE_T QuotaPagedPoolUsage;
+      SIZE_T QuotaPeakNonPagedPoolUsage;
+      SIZE_T QuotaNonPagedPoolUsage;
+      SIZE_T PagefileUsage;
+      SIZE_T PeakPagefileUsage;
+      SIZE_T PrivateUsage;
+    } PROCESS_MEMORY_COUNTERS_EX, *PPROCESS_MEMORY_COUNTERS_EX;
+#endif /* PROCESS_MEMORY_COUNTERS_EX */
+
+std::string log_memory_info()
+{
+    std::string out;
+    if (logSeverity <= boost::log::trivial::info) {
+        HANDLE hProcess = ::OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, FALSE, ::GetCurrentProcessId());
+        if (hProcess != nullptr) {
+            PROCESS_MEMORY_COUNTERS_EX pmc;
+            if (GetProcessMemoryInfo(hProcess, (PROCESS_MEMORY_COUNTERS*)&pmc, sizeof(pmc)))
+				out = " WorkingSet: " + format_memsize_MB(pmc.WorkingSetSize) + " PrivateBytes: " + format_memsize_MB(pmc.PrivateUsage) + " Pagefile(peak): " + format_memsize_MB(pmc.PagefileUsage) + "(" + format_memsize_MB(pmc.PeakPagefileUsage) + ")";
+            CloseHandle(hProcess);
+        }
+    }
+    return out;
+}
+
+#else
+std::string log_memory_info()
+{
+    return std::string();
+}
+#endif
+
 }; // namespace Slic3r

src/slic3r/GUI/BackgroundSlicingProcess.cpp

@@ -65,11 +65,6 @@ PrinterTechnology BackgroundSlicingProcess::current_printer_technology() const
 	return m_print->technology();
 }
 
-static bool isspace(int ch)
-{
-	return std::isspace(ch) != 0;
-}
-
 // This function may one day be merged into the Print, but historically the print was separated
 // from the G-code generator.
 void BackgroundSlicingProcess::process_fff()
@@ -88,6 +83,27 @@ void BackgroundSlicingProcess::process_fff()
 	    	m_print->set_status(95, "Running post-processing scripts");
 	    	run_post_process_scripts(export_path, m_fff_print->config());
 	    	m_print->set_status(100, "G-code file exported to " + export_path);
+	    } else if (! m_upload_job.empty()) {
+			// A print host upload job has been scheduled
+
+	    	// XXX: is fs::path::string() right?
+
+			// Generate a unique temp path to which the gcode is copied
+			boost::filesystem::path source_path = boost::filesystem::temp_directory_path()
+				/ boost::filesystem::unique_path(".printhost.%%%%-%%%%-%%%%-%%%%.gcode");
+
+			if (copy_file(m_temp_output_path, source_path.string()) != 0) {
+				throw std::runtime_error("Copying of the temporary G-code to the output G-code failed");
+			}
+
+			m_print->set_status(95, "Running post-processing scripts");
+			run_post_process_scripts(source_path.string(), m_fff_print->config());
+			m_print->set_status(100, (boost::format("Scheduling upload to `%1%`. See Window -> Print Host Upload Queue") % m_upload_job.printhost->get_host()).str());
+
+			m_upload_job.upload_data.source_path = std::move(source_path);
+			m_upload_job.upload_data.upload_path = m_fff_print->print_statistics().finalize_output_path(m_upload_job.upload_data.upload_path.string());
+
+			GUI::wxGetApp().printhost_job_queue().enqueue(std::move(m_upload_job));
 	    } else {
 	    	m_print->set_status(100, "Slicing complete");
 	    }
@@ -373,13 +389,10 @@ void BackgroundSlicingProcess::schedule_upload(Slic3r::PrintHostJob upload_job)
 	if (! m_export_path.empty())
 		return;
 
-	const boost::filesystem::path path = boost::filesystem::temp_directory_path()
-		/ boost::filesystem::unique_path(".upload.%%%%-%%%%-%%%%-%%%%.gcode");
-
 	// Guard against entering the export step before changing the export path.
 	tbb::mutex::scoped_lock lock(m_print->state_mutex());
 	this->invalidate_step(bspsGCodeFinalize);
-	m_export_path = path.string();
+	m_export_path = std::string();
 	m_upload_job = std::move(upload_job);
 }
 

src/slic3r/GUI/Field.cpp

@@ -163,17 +163,40 @@ void Field::get_value_by_opt_type(wxString& str)
 		break; }
 	case coString:
 	case coStrings:
-	case coFloatOrPercent:
-		m_value = str.ToStdString();
-		break;
+    case coFloatOrPercent: {
+        if (m_opt.type == coFloatOrPercent && !str.IsEmpty() &&  str.Last() != '%')
+        {
+            double val;
+            if (!str.ToCDouble(&val))
+            {
+                show_error(m_parent, _(L("Input value contains incorrect symbol(s).\nUse, please, only digits")));
+                set_value(double_to_string(val), true);                
+            }
+            else if (val > 1)
+            {
+                const int nVal = int(val);
+                wxString msg_text = wxString::Format(_(L("Do you mean %d%% instead of %dmm?\n"
+                    "Select YES if you want to change this value to %d%%, \n"
+                    "or NO if you are sure that %dmm is a correct value.")), nVal, nVal, nVal, nVal);
+                auto dialog = new wxMessageDialog(m_parent, msg_text, _(L("Parameter validation")), wxICON_WARNING | wxYES | wxNO);
+                if (dialog->ShowModal() == wxID_YES) {
+                    set_value(wxString::Format("%s%%", str), true);
+                    str += "%%";
+                }
+            }
+        }
+    
+        m_value = str.ToStdString();
+		break; }
 	default:
 		break;
 	}
 }
 
-bool TextCtrl::is_defined_input_value() const 
+template<class T>
+bool is_defined_input_value(wxWindow* win, const ConfigOptionType& type)
 {
-    if (static_cast<wxTextCtrl*>(window)->GetValue().empty() && m_opt.type != coString && m_opt.type != coStrings)
+    if (static_cast<T*>(win)->GetValue().empty() && type != coString && type != coStrings)
         return false;
     return true;
 }
@@ -252,7 +275,7 @@ void TextCtrl::BUILD() {
 		temp->GetToolTip()->Enable(true);
 #endif // __WXGTK__
 //         if (!is_defined_input_value()) 
-        if (is_defined_input_value())
+        if (is_defined_input_value<wxTextCtrl>(window, m_opt.type))
             on_change_field();
         else
             on_kill_focus(e);
@@ -377,6 +400,9 @@ void SpinCtrl::BUILD() {
 		0, min_val, max_val, default_value);
 
 // 	temp->Bind(wxEVT_SPINCTRL, ([this](wxCommandEvent e) { tmp_value = undef_spin_val; on_change_field(); }), temp->GetId());
+
+    // #ys_FIXME_KILL_FOCUS 
+    // wxEVT_KILL_FOCUS doesn't handled on OSX now 
 	temp->Bind(wxEVT_KILL_FOCUS, ([this](wxEvent& e)
 	{
         if (tmp_value < 0)
@@ -386,6 +412,7 @@ void SpinCtrl::BUILD() {
             on_change_field();
         }
 	}), temp->GetId());
+
 	temp->Bind(wxEVT_TEXT, ([this](wxCommandEvent e)
 	{
 // 		# On OSX / Cocoa, wxSpinCtrl::GetValue() doesn't return the new value
@@ -398,9 +425,15 @@ void SpinCtrl::BUILD() {
 			tmp_value = std::stoi(value);
         else tmp_value = -9999;
 // 		on_change_field();
-// 		# We don't reset tmp_value here because _on_change might put callbacks
-// 		# in the CallAfter queue, and we want the tmp value to be available from
-// 		# them as well.
+#ifdef __WXOSX__
+    // #ys_FIXME_KILL_FOCUS so call on_change_field() inside wxEVT_TEXT
+        if (tmp_value < 0) {
+            if (m_on_kill_focus != nullptr)
+                m_on_kill_focus(m_opt_id);
+        }
+        else 
+            on_change_field();
+#endif
 	}), temp->GetId());
 	
 	temp->SetToolTip(get_tooltip_text(text_value));
@@ -432,9 +465,24 @@ void Choice::BUILD() {
 		}
 		set_selection();
 	}
- 	temp->Bind(wxEVT_TEXT, ([this](wxCommandEvent e) { on_change_field(); }), temp->GetId());
+// 	temp->Bind(wxEVT_TEXT, ([this](wxCommandEvent e) { on_change_field(); }), temp->GetId());
  	temp->Bind(wxEVT_COMBOBOX, ([this](wxCommandEvent e) { on_change_field(); }), temp->GetId());
 
+    if (temp->GetWindowStyle() != wxCB_READONLY) {
+        temp->Bind(wxEVT_KILL_FOCUS, ([this](wxEvent& e) {
+            e.Skip();
+            double old_val = !m_value.empty() ? boost::any_cast<double>(m_value) : -99999;
+            if (is_defined_input_value<wxComboBox>(window, m_opt.type)) {
+                if (fabs(old_val - boost::any_cast<double>(get_value())) <= 0.0001)
+                    return;
+                else
+                    on_change_field();
+            }
+            else
+                on_kill_focus(e);
+        }), temp->GetId());
+    }
+
 	temp->SetToolTip(get_tooltip_text(temp->GetValue()));
 }
 
@@ -611,9 +659,7 @@ boost::any& Choice::get_value()
 		if (m_opt_id == rp_option)
 			return m_value = boost::any(ret_str);
 
-	if (m_opt.type != coEnum)
-		/*m_value = */get_value_by_opt_type(ret_str);
-	else
+	if (m_opt.type == coEnum)
 	{
 		int ret_enum = static_cast<wxComboBox*>(window)->GetSelection(); 
 		if (m_opt_id.compare("external_fill_pattern") == 0)
@@ -638,7 +684,18 @@ boost::any& Choice::get_value()
 			m_value = static_cast<SeamPosition>(ret_enum);
 		else if (m_opt_id.compare("host_type") == 0)
 			m_value = static_cast<PrintHostType>(ret_enum);
-	}	
+		else if (m_opt_id.compare("display_orientation") == 0)
+			m_value = static_cast<SLADisplayOrientation>(ret_enum);
+	}
+    else if (m_opt.gui_type == "f_enum_open") {
+        const int ret_enum = static_cast<wxComboBox*>(window)->GetSelection();
+        if (ret_enum < 0 || m_opt.enum_values.empty())
+            get_value_by_opt_type(ret_str);
+        else 
+            m_value = atof(m_opt.enum_values[ret_enum].c_str());
+    }
+	else	
+        get_value_by_opt_type(ret_str);
 
 	return m_value;
 }
@@ -702,8 +759,11 @@ void PointCtrl::BUILD()
 	temp->Add(new wxStaticText(m_parent, wxID_ANY, "   y : "), 0, wxALIGN_CENTER_VERTICAL, 0);
 	temp->Add(y_textctrl);
 
-	x_textctrl->Bind(wxEVT_TEXT, ([this](wxCommandEvent e) { on_change_field(); }), x_textctrl->GetId());
-	y_textctrl->Bind(wxEVT_TEXT, ([this](wxCommandEvent e) { on_change_field(); }), y_textctrl->GetId());
+// 	x_textctrl->Bind(wxEVT_TEXT, ([this](wxCommandEvent e) { on_change_field(); }), x_textctrl->GetId());
+// 	y_textctrl->Bind(wxEVT_TEXT, ([this](wxCommandEvent e) { on_change_field(); }), y_textctrl->GetId());
+
+    x_textctrl->Bind(wxEVT_KILL_FOCUS, ([this](wxEvent& e) { OnKillFocus(e, x_textctrl); }), x_textctrl->GetId());
+    y_textctrl->Bind(wxEVT_KILL_FOCUS, ([this](wxEvent& e) { OnKillFocus(e, x_textctrl); }), y_textctrl->GetId());
 
 	// 	// recast as a wxWindow to fit the calling convention
 	sizer = dynamic_cast<wxSizer*>(temp);
@@ -712,6 +772,16 @@ void PointCtrl::BUILD()
 	y_textctrl->SetToolTip(get_tooltip_text(X+", "+Y));
 }
 
+void PointCtrl::OnKillFocus(wxEvent& e, wxTextCtrl* win)
+{
+    e.Skip();
+    if (!win->GetValue().empty()) {
+        on_change_field();
+    }
+    else
+        on_kill_focus(e);
+}
+
 void PointCtrl::set_value(const Vec2d& value, bool change_event)
 {
 	m_disable_change_event = !change_event;

src/slic3r/GUI/Field.hpp

@@ -266,7 +266,6 @@ public:
     }
 
 	boost::any&		get_value() override;
-    bool            is_defined_input_value() const ;
     
     virtual void	enable();
     virtual void	disable();
@@ -395,6 +394,7 @@ public:
 
 	void			BUILD()  override;
 
+    void            OnKillFocus(wxEvent& e, wxTextCtrl* win);
 	void			set_value(const Vec2d& value, bool change_event = false);
 	void			set_value(const boost::any& value, bool change_event = false);
 	boost::any&		get_value() override;

src/slic3r/GUI/GLCanvas3D.cpp

@@ -617,42 +617,71 @@ bool GLCanvas3D::Bed::_are_equal(const Pointfs& bed_1, const Pointfs& bed_2)
     return true;
 }
 
+const double GLCanvas3D::Axes::Radius = 0.5;
+const double GLCanvas3D::Axes::ArrowBaseRadius = 2.5 * GLCanvas3D::Axes::Radius;
+const double GLCanvas3D::Axes::ArrowLength = 5.0;
+
 GLCanvas3D::Axes::Axes()
     : origin(Vec3d::Zero())
-    , length(0.0f)
+    , length(Vec3d::Zero())
 {
+    m_quadric = ::gluNewQuadric();
+    if (m_quadric != nullptr)
+        ::gluQuadricDrawStyle(m_quadric, GLU_FILL);
 }
 
-void GLCanvas3D::Axes::render(bool depth_test) const
+GLCanvas3D::Axes::~Axes()
 {
-    if (depth_test)
-        ::glEnable(GL_DEPTH_TEST);
-    else
-        ::glDisable(GL_DEPTH_TEST);
+    if (m_quadric != nullptr)
+        ::gluDeleteQuadric(m_quadric);
+}
 
-    ::glLineWidth(2.0f);
-    ::glBegin(GL_LINES);
-    // draw line for x axis
+void GLCanvas3D::Axes::render() const
+{
+    if (m_quadric == nullptr)
+        return;
+
+    ::glEnable(GL_DEPTH_TEST);
+    ::glEnable(GL_LIGHTING);
+
+    // x axis
     ::glColor3f(1.0f, 0.0f, 0.0f);
-    ::glVertex3dv(origin.data());
-    ::glVertex3f((GLfloat)origin(0) + length, (GLfloat)origin(1), (GLfloat)origin(2));
-    // draw line for y axis
-    ::glColor3f(0.0f, 1.0f, 0.0f);
-    ::glVertex3dv(origin.data());
-    ::glVertex3f((GLfloat)origin(0), (GLfloat)origin(1) + length, (GLfloat)origin(2));
-    ::glEnd();
-    // draw line for Z axis
-    // (re-enable depth test so that axis is correctly shown when objects are behind it)
-    if (!depth_test)
-        ::glEnable(GL_DEPTH_TEST);
+    ::glPushMatrix();
+    ::glTranslated(origin(0), origin(1), origin(2));
+    ::glRotated(90.0, 0.0, 1.0, 0.0);
+    render_axis(length(0));
+    ::glPopMatrix();
 
-    ::glBegin(GL_LINES);
+    // y axis
+    ::glColor3f(0.0f, 1.0f, 0.0f);
+    ::glPushMatrix();
+    ::glTranslated(origin(0), origin(1), origin(2));
+    ::glRotated(-90.0, 1.0, 0.0, 0.0);
+    render_axis(length(1));
+    ::glPopMatrix();
+
+    // z axis
     ::glColor3f(0.0f, 0.0f, 1.0f);
-    ::glVertex3dv(origin.data());
-    ::glVertex3f((GLfloat)origin(0), (GLfloat)origin(1), (GLfloat)origin(2) + length);
-    ::glEnd();
+    ::glPushMatrix();
+    ::glTranslated(origin(0), origin(1), origin(2));
+    render_axis(length(2));
+    ::glPopMatrix();
+
+    ::glDisable(GL_LIGHTING);
 }
 
+void GLCanvas3D::Axes::render_axis(double length) const
+{
+    ::gluQuadricOrientation(m_quadric, GLU_OUTSIDE);
+    ::gluCylinder(m_quadric, Radius, Radius, length, 32, 1);
+    ::gluQuadricOrientation(m_quadric, GLU_INSIDE);
+    ::gluDisk(m_quadric, 0.0, Radius, 32, 1);
+    ::glTranslated(0.0, 0.0, length);
+    ::gluQuadricOrientation(m_quadric, GLU_OUTSIDE);
+    ::gluCylinder(m_quadric, ArrowBaseRadius, 0.0, ArrowLength, 32, 1);
+    ::gluQuadricOrientation(m_quadric, GLU_INSIDE);
+    ::gluDisk(m_quadric, 0.0, ArrowBaseRadius, 32, 1);
+}
 
 GLCanvas3D::Shader::Shader()
     : m_shader(nullptr)
@@ -1133,8 +1162,21 @@ GLCanvas3D::Selection::Selection()
     , m_valid(false)
     , m_bounding_box_dirty(true)
 {
+#if ENABLE_RENDER_SELECTION_CENTER
+    m_quadric = ::gluNewQuadric();
+    if (m_quadric != nullptr)
+        ::gluQuadricDrawStyle(m_quadric, GLU_FILL);
+#endif // ENABLE_RENDER_SELECTION_CENTER
 }
 
+#if ENABLE_RENDER_SELECTION_CENTER
+GLCanvas3D::Selection::~Selection()
+{
+    if (m_quadric != nullptr)
+        ::gluDeleteQuadric(m_quadric);
+}
+#endif // ENABLE_RENDER_SELECTION_CENTER
+
 void GLCanvas3D::Selection::set_volumes(GLVolumePtrs* volumes)
 {
     m_volumes = volumes;
@@ -1436,6 +1478,14 @@ bool GLCanvas3D::Selection::is_from_single_object() const
     return (0 <= idx) && (idx < 1000);
 }
 
+bool GLCanvas3D::Selection::requires_uniform_scale() const
+{
+    if (is_single_full_instance() || is_single_modifier() || is_single_volume())
+        return false;
+
+    return true;
+}
+
 int GLCanvas3D::Selection::get_object_idx() const
 {
     return (m_cache.content.size() == 1) ? m_cache.content.begin()->first : -1;
@@ -1490,8 +1540,13 @@ void GLCanvas3D::Selection::translate(const Vec3d& displacement)
 #if ENABLE_MODELVOLUME_TRANSFORM
     if ((m_mode == Volume) || (*m_volumes)[i]->is_wipe_tower)
     {
-        Vec3d local_displacement = (m_cache.volumes_data[i].get_instance_rotation_matrix() * m_cache.volumes_data[i].get_instance_scale_matrix() * m_cache.volumes_data[i].get_instance_mirror_matrix()).inverse() * displacement;
-        (*m_volumes)[i]->set_volume_offset(m_cache.volumes_data[i].get_volume_position() + local_displacement);
+        if (_requires_local_axes())
+            (*m_volumes)[i]->set_volume_offset(m_cache.volumes_data[i].get_volume_position() + displacement);
+        else
+        {
+            Vec3d local_displacement = (m_cache.volumes_data[i].get_instance_rotation_matrix() * m_cache.volumes_data[i].get_instance_scale_matrix() * m_cache.volumes_data[i].get_instance_mirror_matrix()).inverse() * displacement;
+            (*m_volumes)[i]->set_volume_offset(m_cache.volumes_data[i].get_volume_position() + local_displacement);
+        }
     }
     else if (m_mode == Instance)
         (*m_volumes)[i]->set_instance_offset(m_cache.volumes_data[i].get_instance_position() + displacement);
@@ -1520,9 +1575,14 @@ void GLCanvas3D::Selection::rotate(const Vec3d& rotation, bool local)
         if (is_single_full_instance())
 #if ENABLE_WORLD_ROTATIONS
         {
-            Transform3d m = Geometry::assemble_transform(Vec3d::Zero(), rotation);
-            Vec3d new_rotation = Geometry::extract_euler_angles(m * m_cache.volumes_data[i].get_instance_rotation_matrix());
-            (*m_volumes)[i]->set_instance_rotation(new_rotation);
+            if (local)
+                (*m_volumes)[i]->set_instance_rotation(rotation);
+            else
+            {
+                Transform3d m = Geometry::assemble_transform(Vec3d::Zero(), rotation);
+                Vec3d new_rotation = Geometry::extract_euler_angles(m * m_cache.volumes_data[i].get_instance_rotation_matrix());
+                (*m_volumes)[i]->set_instance_rotation(new_rotation);
+            }
         }
 #else
 #if ENABLE_MODELVOLUME_TRANSFORM
@@ -1535,11 +1595,16 @@ void GLCanvas3D::Selection::rotate(const Vec3d& rotation, bool local)
         else if (is_single_volume() || is_single_modifier())
 #if ENABLE_WORLD_ROTATIONS
         {
-            Transform3d m = Geometry::assemble_transform(Vec3d::Zero(), rotation);
-            const Transform3d& inst_m = m_cache.volumes_data[i].get_instance_rotation_matrix();
-            Vec3d new_rotation = Geometry::extract_euler_angles(inst_m.inverse() * m * inst_m * m_cache.volumes_data[i].get_volume_rotation_matrix());
-            (*m_volumes)[i]->set_volume_rotation(new_rotation);
-    }
+            if (_requires_local_axes())
+                (*m_volumes)[i]->set_volume_rotation(rotation);
+            else
+            {
+                Transform3d m = Geometry::assemble_transform(Vec3d::Zero(), rotation);
+                const Transform3d& inst_m = m_cache.volumes_data[i].get_instance_rotation_matrix();
+                Vec3d new_rotation = Geometry::extract_euler_angles(inst_m.inverse() * m * inst_m * m_cache.volumes_data[i].get_volume_rotation_matrix());
+                (*m_volumes)[i]->set_volume_rotation(new_rotation);
+            }
+        }
 #else
             (*m_volumes)[i]->set_volume_rotation(rotation);
 #endif // ENABLE_WORLD_ROTATIONS
@@ -1960,7 +2025,7 @@ void GLCanvas3D::Selection::erase()
 
 void GLCanvas3D::Selection::render() const
 {
-    if (is_empty())
+    if (!m_valid || is_empty())
         return;
 
     // render cumulative bounding box of selected volumes
@@ -1968,6 +2033,28 @@ void GLCanvas3D::Selection::render() const
     _render_synchronized_volumes();
 }
 
+#if ENABLE_RENDER_SELECTION_CENTER
+void GLCanvas3D::Selection::render_center() const
+{
+    if (!m_valid || is_empty() || (m_quadric == nullptr))
+        return;
+
+    const Vec3d& center = get_bounding_box().center();
+
+    ::glDisable(GL_DEPTH_TEST);
+
+    ::glEnable(GL_LIGHTING);
+
+    ::glColor3f(1.0f, 1.0f, 1.0f);
+    ::glPushMatrix();
+    ::glTranslated(center(0), center(1), center(2));
+    ::gluSphere(m_quadric, 0.75, 32, 32);
+    ::glPopMatrix();
+
+    ::glDisable(GL_LIGHTING);
+}
+#endif // ENABLE_RENDER_SELECTION_CENTER
+
 void GLCanvas3D::Selection::_update_valid()
 {
     m_valid = (m_volumes != nullptr) && (m_model != nullptr);
@@ -2501,9 +2588,14 @@ void GLCanvas3D::Selection::_ensure_on_bed()
 }
 #endif // ENABLE_ENSURE_ON_BED_WHILE_SCALING
 
-const float GLCanvas3D::Gizmos::OverlayTexturesScale = 1.0f;
-const float GLCanvas3D::Gizmos::OverlayOffsetX = 10.0f * OverlayTexturesScale;
-const float GLCanvas3D::Gizmos::OverlayGapY = 5.0f * OverlayTexturesScale;
+bool GLCanvas3D::Selection::_requires_local_axes() const
+{
+    return (m_mode == Volume) && is_from_single_instance();
+}
+
+const float GLCanvas3D::Gizmos::OverlayIconsScale = 1.0f;
+const float GLCanvas3D::Gizmos::OverlayBorder = 5.0f;
+const float GLCanvas3D::Gizmos::OverlayGapY = 5.0f * OverlayIconsScale;
 
 GLCanvas3D::Gizmos::Gizmos()
     : m_enabled(false)
@@ -2584,6 +2676,23 @@ bool GLCanvas3D::Gizmos::init(GLCanvas3D& parent)
 
     m_gizmos.insert(GizmosMap::value_type(SlaSupports, gizmo));
 
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    m_background_texture.metadata.filename = "toolbar_background.png";
+    m_background_texture.metadata.left = 16;
+    m_background_texture.metadata.top = 16;
+    m_background_texture.metadata.right = 16;
+    m_background_texture.metadata.bottom = 16;
+
+    if (!m_background_texture.metadata.filename.empty())
+    {
+        if (!m_background_texture.texture.load_from_file(resources_dir() + "/icons/" + m_background_texture.metadata.filename, false))
+        {
+            _reset();
+            return false;
+        }
+    }
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+
     return true;
 }
 
@@ -2606,24 +2715,22 @@ std::string GLCanvas3D::Gizmos::update_hover_state(const GLCanvas3D& canvas, con
 
     float cnv_h = (float)canvas.get_canvas_size().get_height();
     float height = _get_total_overlay_height();
-    float top_y = 0.5f * (cnv_h - height);
+    float top_y = 0.5f * (cnv_h - height) + OverlayBorder;
     for (GizmosMap::iterator it = m_gizmos.begin(); it != m_gizmos.end(); ++it)
     {
         if ((it->second == nullptr) || !it->second->is_selectable())
             continue;
 
-        float tex_size = (float)it->second->get_textures_size() * OverlayTexturesScale;
-        float half_tex_size = 0.5f * tex_size;
+        float icon_size = (float)it->second->get_textures_size() * OverlayIconsScale;
 
-        // we currently use circular icons for gizmo, so we check the radius
         if (it->second->is_activable(selection) && (it->second->get_state() != GLGizmoBase::On))
         {
-            bool inside = (mouse_pos - Vec2d(OverlayOffsetX + half_tex_size, top_y + half_tex_size)).norm() < half_tex_size;
+            bool inside = (OverlayBorder <= (float)mouse_pos(0)) && ((float)mouse_pos(0) <= OverlayBorder + icon_size) && (top_y <= (float)mouse_pos(1)) && ((float)mouse_pos(1) <= top_y + icon_size);
             it->second->set_state(inside ? GLGizmoBase::Hover : GLGizmoBase::Off);
             if (inside)
                 name = it->second->get_name();
         }
-        top_y += (tex_size + OverlayGapY);
+        top_y += (icon_size + OverlayGapY);
     }
 
     return name;
@@ -2636,17 +2743,16 @@ void GLCanvas3D::Gizmos::update_on_off_state(const GLCanvas3D& canvas, const Vec
 
     float cnv_h = (float)canvas.get_canvas_size().get_height();
     float height = _get_total_overlay_height();
-    float top_y = 0.5f * (cnv_h - height);
+    float top_y = 0.5f * (cnv_h - height) + OverlayBorder;
     for (GizmosMap::iterator it = m_gizmos.begin(); it != m_gizmos.end(); ++it)
     {
         if ((it->second == nullptr) || !it->second->is_selectable())
             continue;
 
-        float tex_size = (float)it->second->get_textures_size() * OverlayTexturesScale;
-        float half_tex_size = 0.5f * tex_size;
+        float icon_size = (float)it->second->get_textures_size() * OverlayIconsScale;
 
-        // we currently use circular icons for gizmo, so we check the radius
-        if (it->second->is_activable(selection) && ((mouse_pos - Vec2d(OverlayOffsetX + half_tex_size, top_y + half_tex_size)).norm() < half_tex_size))
+        bool inside = (OverlayBorder <= (float)mouse_pos(0)) && ((float)mouse_pos(0) <= OverlayBorder + icon_size) && (top_y <= (float)mouse_pos(1)) && ((float)mouse_pos(1) <= top_y + icon_size);
+        if (it->second->is_activable(selection) && inside)
         {
             if ((it->second->get_state() == GLGizmoBase::On))
             {
@@ -2662,7 +2768,7 @@ void GLCanvas3D::Gizmos::update_on_off_state(const GLCanvas3D& canvas, const Vec
         else
             it->second->set_state(GLGizmoBase::Off);
 
-        top_y += (tex_size + OverlayGapY);
+        top_y += (icon_size + OverlayGapY);
     }
 
     GizmosMap::iterator it = m_gizmos.find(m_current);
@@ -2734,20 +2840,18 @@ bool GLCanvas3D::Gizmos::overlay_contains_mouse(const GLCanvas3D& canvas, const
 
     float cnv_h = (float)canvas.get_canvas_size().get_height();
     float height = _get_total_overlay_height();
-    float top_y = 0.5f * (cnv_h - height);
+    float top_y = 0.5f * (cnv_h - height) + OverlayBorder;
     for (GizmosMap::const_iterator it = m_gizmos.begin(); it != m_gizmos.end(); ++it)
     {
         if ((it->second == nullptr) || !it->second->is_selectable())
             continue;
 
-        float tex_size = (float)it->second->get_textures_size() * OverlayTexturesScale;
-        float half_tex_size = 0.5f * tex_size;
+        float icon_size = (float)it->second->get_textures_size() * OverlayIconsScale;
 
-        // we currently use circular icons for gizmo, so we check the radius
-        if ((mouse_pos - Vec2d(OverlayOffsetX + half_tex_size, top_y + half_tex_size)).norm() < half_tex_size)
+        if ((OverlayBorder <= (float)mouse_pos(0)) && ((float)mouse_pos(0) <= OverlayBorder + icon_size) && (top_y <= (float)mouse_pos(1)) && ((float)mouse_pos(1) <= top_y + icon_size))
             return true;
 
-        top_y += (tex_size + OverlayGapY);
+        top_y += (icon_size + OverlayGapY);
     }
 
     return false;
@@ -3020,21 +3124,102 @@ void GLCanvas3D::Gizmos::_render_overlay(const GLCanvas3D& canvas, const GLCanva
     float inv_zoom = (zoom != 0.0f) ? 1.0f / zoom : 0.0f;
 
     float height = _get_total_overlay_height();
-    float top_x = (OverlayOffsetX - 0.5f * cnv_w) * inv_zoom;
-    float top_y = 0.5f * height * inv_zoom;
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    float scaled_border = OverlayBorder * inv_zoom;
+
+    float top_x = (-0.5f * cnv_w) * inv_zoom;
+    float top_y = (0.5f * height) * inv_zoom;
+
+    float left = top_x;
+    float top = top_y;
+    float right = left + _get_total_overlay_width() * inv_zoom;
+    float bottom = top - height * inv_zoom;
+
+    // renders background
+    unsigned int bg_tex_id = m_background_texture.texture.get_id();
+    float bg_tex_width = (float)m_background_texture.texture.get_width();
+    float bg_tex_height = (float)m_background_texture.texture.get_height();
+    if ((bg_tex_id != 0) && (bg_tex_width > 0) && (bg_tex_height > 0))
+    {
+        float inv_bg_tex_width = (bg_tex_width != 0.0f) ? 1.0f / bg_tex_width : 0.0f;
+        float inv_bg_tex_height = (bg_tex_height != 0.0f) ? 1.0f / bg_tex_height : 0.0f;
+
+        float bg_uv_left = 0.0f;
+        float bg_uv_right = 1.0f;
+        float bg_uv_top = 1.0f;
+        float bg_uv_bottom = 0.0f;
+
+        float bg_left = left;
+        float bg_right = right;
+        float bg_top = top;
+        float bg_bottom = bottom;
+        float bg_width = right - left;
+        float bg_height = top - bottom;
+        float bg_min_size = std::min(bg_width, bg_height);
+
+        float bg_uv_i_left = (float)m_background_texture.metadata.left * inv_bg_tex_width;
+        float bg_uv_i_right = 1.0f - (float)m_background_texture.metadata.right * inv_bg_tex_width;
+        float bg_uv_i_top = 1.0f - (float)m_background_texture.metadata.top * inv_bg_tex_height;
+        float bg_uv_i_bottom = (float)m_background_texture.metadata.bottom * inv_bg_tex_height;
+
+        float bg_i_left = bg_left + scaled_border;
+        float bg_i_right = bg_right - scaled_border;
+        float bg_i_top = bg_top - scaled_border;
+        float bg_i_bottom = bg_bottom + scaled_border;
+
+        bg_uv_left = bg_uv_i_left;
+        bg_i_left = bg_left;
+
+        if ((OverlayBorder > 0) && (bg_uv_top != bg_uv_i_top))
+        {
+            if (bg_uv_left != bg_uv_i_left)
+                GLTexture::render_sub_texture(bg_tex_id, bg_left, bg_i_left, bg_i_top, bg_top, { { bg_uv_left, bg_uv_i_top }, { bg_uv_i_left, bg_uv_i_top }, { bg_uv_i_left, bg_uv_top }, { bg_uv_left, bg_uv_top } });
+
+            GLTexture::render_sub_texture(bg_tex_id, bg_i_left, bg_i_right, bg_i_top, bg_top, { { bg_uv_i_left, bg_uv_i_top }, { bg_uv_i_right, bg_uv_i_top }, { bg_uv_i_right, bg_uv_top }, { bg_uv_i_left, bg_uv_top } });
+
+            if (bg_uv_right != bg_uv_i_right)
+                GLTexture::render_sub_texture(bg_tex_id, bg_i_right, bg_right, bg_i_top, bg_top, { { bg_uv_i_right, bg_uv_i_top }, { bg_uv_right, bg_uv_i_top }, { bg_uv_right, bg_uv_top }, { bg_uv_i_right, bg_uv_top } });
+        }
+
+        if ((OverlayBorder > 0) && (bg_uv_left != bg_uv_i_left))
+            GLTexture::render_sub_texture(bg_tex_id, bg_left, bg_i_left, bg_i_bottom, bg_i_top, { { bg_uv_left, bg_uv_i_bottom }, { bg_uv_i_left, bg_uv_i_bottom }, { bg_uv_i_left, bg_uv_i_top }, { bg_uv_left, bg_uv_i_top } });
+
+        GLTexture::render_sub_texture(bg_tex_id, bg_i_left, bg_i_right, bg_i_bottom, bg_i_top, { { bg_uv_i_left, bg_uv_i_bottom }, { bg_uv_i_right, bg_uv_i_bottom }, { bg_uv_i_right, bg_uv_i_top }, { bg_uv_i_left, bg_uv_i_top } });
+
+        if ((OverlayBorder > 0) && (bg_uv_right != bg_uv_i_right))
+            GLTexture::render_sub_texture(bg_tex_id, bg_i_right, bg_right, bg_i_bottom, bg_i_top, { { bg_uv_i_right, bg_uv_i_bottom }, { bg_uv_right, bg_uv_i_bottom }, { bg_uv_right, bg_uv_i_top }, { bg_uv_i_right, bg_uv_i_top } });
+
+        if ((OverlayBorder > 0) && (bg_uv_bottom != bg_uv_i_bottom))
+        {
+            if (bg_uv_left != bg_uv_i_left)
+                GLTexture::render_sub_texture(bg_tex_id, bg_left, bg_i_left, bg_bottom, bg_i_bottom, { { bg_uv_left, bg_uv_bottom }, { bg_uv_i_left, bg_uv_bottom }, { bg_uv_i_left, bg_uv_i_bottom }, { bg_uv_left, bg_uv_i_bottom } });
+
+            GLTexture::render_sub_texture(bg_tex_id, bg_i_left, bg_i_right, bg_bottom, bg_i_bottom, { { bg_uv_i_left, bg_uv_bottom }, { bg_uv_i_right, bg_uv_bottom }, { bg_uv_i_right, bg_uv_i_bottom }, { bg_uv_i_left, bg_uv_i_bottom } });
+
+            if (bg_uv_right != bg_uv_i_right)
+                GLTexture::render_sub_texture(bg_tex_id, bg_i_right, bg_right, bg_bottom, bg_i_bottom, { { bg_uv_i_right, bg_uv_bottom }, { bg_uv_right, bg_uv_bottom }, { bg_uv_right, bg_uv_i_bottom }, { bg_uv_i_right, bg_uv_i_bottom } });
+        }
+    }
+
+    top_x += OverlayBorder * inv_zoom;
+    top_y -= OverlayBorder * inv_zoom;
+#else
+    float top_x = (OverlayBorder - 0.5f * cnv_w) * inv_zoom;
+    float top_y = (0.5f * height - OverlayBorder) * inv_zoom;
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
     float scaled_gap_y = OverlayGapY * inv_zoom;
     for (GizmosMap::const_iterator it = m_gizmos.begin(); it != m_gizmos.end(); ++it)
     {
         if ((it->second == nullptr) || !it->second->is_selectable())
             continue;
 
-        float tex_size = (float)it->second->get_textures_size() * OverlayTexturesScale * inv_zoom;
-        GLTexture::render_texture(it->second->get_texture_id(), top_x, top_x + tex_size, top_y - tex_size, top_y);
+        float icon_size = (float)it->second->get_textures_size() * OverlayIconsScale * inv_zoom;
+        GLTexture::render_texture(it->second->get_texture_id(), top_x, top_x + icon_size, top_y - icon_size, top_y);
 #if ENABLE_IMGUI
         if (it->second->get_state() == GLGizmoBase::On)
-            it->second->render_input_window(2.0f * OverlayOffsetX + tex_size * zoom, 0.5f * cnv_h - top_y * zoom, selection);
+            it->second->render_input_window(2.0f * OverlayBorder + icon_size * zoom, 0.5f * cnv_h - top_y * zoom, selection);
 #endif // ENABLE_IMGUI
-        top_y -= (tex_size + scaled_gap_y);
+        top_y -= (icon_size + scaled_gap_y);
     }
 }
 
@@ -3047,19 +3232,35 @@ void GLCanvas3D::Gizmos::_render_current_gizmo(const GLCanvas3D::Selection& sele
 
 float GLCanvas3D::Gizmos::_get_total_overlay_height() const
 {
-    float height = 0.0f;
+    float height = 2.0f * OverlayBorder;
 
     for (GizmosMap::const_iterator it = m_gizmos.begin(); it != m_gizmos.end(); ++it)
     {
-        if (it->first == SlaSupports && wxGetApp().preset_bundle->printers.get_edited_preset().printer_technology() != ptSLA)
+        if ((it->second == nullptr) || !it->second->is_selectable())
             continue;
 
-        height += (float)it->second->get_textures_size() * OverlayTexturesScale + OverlayGapY;
+        height += (float)it->second->get_textures_size() * OverlayIconsScale + OverlayGapY;
     }
 
     return height - OverlayGapY;
 }
 
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+float GLCanvas3D::Gizmos::_get_total_overlay_width() const
+{
+    float max_icon_width = 0.0f;
+    for (GizmosMap::const_iterator it = m_gizmos.begin(); it != m_gizmos.end(); ++it)
+    {
+        if ((it->second == nullptr) || !it->second->is_selectable())
+            continue;
+
+        max_icon_width = std::max(max_icon_width, (float)it->second->get_textures_size() * OverlayIconsScale);
+    }
+
+    return max_icon_width + 2.0f * OverlayBorder;
+}
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+
 GLGizmoBase* GLCanvas3D::Gizmos::_get_current() const
 {
     GizmosMap::const_iterator it = m_gizmos.find(m_current);
@@ -3434,11 +3635,16 @@ GLCanvas3D::GLCanvas3D(wxGLCanvas* canvas)
     : m_canvas(canvas)
     , m_context(nullptr)
     , m_in_render(false)
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    , m_toolbar(GLToolbar::Normal)
+#else
     , m_toolbar(*this)
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
 #if ENABLE_REMOVE_TABS_FROM_PLATER
     , m_view_toolbar(nullptr)
 #endif // ENABLE_REMOVE_TABS_FROM_PLATER
     , m_use_clipping_planes(false)
+    , m_sidebar_field("")
     , m_config(nullptr)
     , m_process(nullptr)
     , m_model(nullptr)
@@ -3668,7 +3874,7 @@ void GLCanvas3D::set_bed_shape(const Pointfs& shape)
 
     // Set the origin and size for painting of the coordinate system axes.
     m_axes.origin = Vec3d(0.0, 0.0, (double)GROUND_Z);
-    set_axes_length(0.3f * (float)m_bed.get_bounding_box().max_size());
+    set_bed_axes_length(0.1 * m_bed.get_bounding_box().max_size());
 
     if (new_shape)
         zoom_to_bed();
@@ -3676,9 +3882,9 @@ void GLCanvas3D::set_bed_shape(const Pointfs& shape)
     m_dirty = true;
 }
 
-void GLCanvas3D::set_axes_length(float length)
+void GLCanvas3D::set_bed_axes_length(double length)
 {
-    m_axes.length = length;
+    m_axes.length = length * Vec3d::Ones();
 }
 
 void GLCanvas3D::set_color_by(const std::string& value)
@@ -3938,21 +4144,20 @@ void GLCanvas3D::render()
     _render_background();
 
     if (is_custom_bed) // untextured bed needs to be rendered before objects
-    {
         _render_bed(theta);
-        // disable depth testing so that axes are not covered by ground
-        _render_axes(false);
-    }
 
     _render_objects();
     _render_sla_slices();
     _render_selection();
 
+    _render_axes();
+
     if (!is_custom_bed) // textured bed needs to be rendered after objects
-    {
-        _render_axes(true);
         _render_bed(theta);
-    }
+
+#if ENABLE_RENDER_SELECTION_CENTER
+    _render_selection_center();
+#endif // ENABLE_RENDER_SELECTION_CENTER
 
     // we need to set the mouse's scene position here because the depth buffer
     // could be invalidated by the following gizmo render methods
@@ -4675,7 +4880,11 @@ void GLCanvas3D::on_mouse(wxMouseEvent& evt)
     int layer_editing_object_idx = is_layers_editing_enabled() ? selected_object_idx : -1;
     m_layers_editing.last_object_id = layer_editing_object_idx;
     bool gizmos_overlay_contains_mouse = m_gizmos.overlay_contains_mouse(*this, m_mouse.position);
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    int toolbar_contains_mouse = m_toolbar.contains_mouse(m_mouse.position, *this);
+#else
     int toolbar_contains_mouse = m_toolbar.contains_mouse(m_mouse.position);
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
 #if ENABLE_REMOVE_TABS_FROM_PLATER
     int view_toolbar_contains_mouse = (m_view_toolbar != nullptr) ? m_view_toolbar->contains_mouse(m_mouse.position, *this) : -1;
 #endif // ENABLE_REMOVE_TABS_FROM_PLATER
@@ -4699,7 +4908,11 @@ void GLCanvas3D::on_mouse(wxMouseEvent& evt)
     else if (evt.LeftDClick() && (toolbar_contains_mouse != -1))
     {
         m_toolbar_action_running = true;
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+        m_toolbar.do_action((unsigned int)toolbar_contains_mouse, *this);
+#else
         m_toolbar.do_action((unsigned int)toolbar_contains_mouse);
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
     }
     else if (evt.LeftDClick() && (m_gizmos.get_current_type() != Gizmos::Undefined))
     {
@@ -4778,7 +4991,11 @@ void GLCanvas3D::on_mouse(wxMouseEvent& evt)
         else if (toolbar_contains_mouse != -1)
         {
             m_toolbar_action_running = true;
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+            m_toolbar.do_action((unsigned int)toolbar_contains_mouse, *this);
+#else
             m_toolbar.do_action((unsigned int)toolbar_contains_mouse);
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
             m_mouse.left_down = false;
         }
         else
@@ -4983,7 +5200,7 @@ void GLCanvas3D::on_mouse(wxMouseEvent& evt)
         else if (evt.LeftUp() && !m_mouse.dragging && (m_hover_volume_id == -1) && !gizmos_overlay_contains_mouse && !m_gizmos.is_dragging() && !is_layers_editing_enabled())
         {
             // deselect and propagate event through callback
-            if (m_picking_enabled && !m_toolbar_action_running && !m_mouse.ignore_up_event)
+            if (!evt.ShiftDown() && m_picking_enabled && !m_toolbar_action_running && !m_mouse.ignore_up_event)
             {
                 m_selection.clear();
                 m_selection.set_mode(Selection::Instance);
@@ -5061,7 +5278,11 @@ void GLCanvas3D::on_mouse(wxMouseEvent& evt)
 
         // updates toolbar overlay
         if (tooltip.empty())
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+            tooltip = m_toolbar.update_hover_state(m_mouse.position, *this);
+#else
             tooltip = m_toolbar.update_hover_state(m_mouse.position);
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
 
         // updates view toolbar overlay
         if (tooltip.empty() && (m_view_toolbar != nullptr))
@@ -5413,6 +5634,17 @@ void GLCanvas3D::update_gizmos_on_off_state()
     m_gizmos.update_on_off_state(get_selection());
 }
 
+void GLCanvas3D::handle_sidebar_focus_event(const std::string& opt_key, bool focus_on)
+{
+    m_sidebar_field = focus_on ? opt_key : "";
+
+    if (!m_sidebar_field.empty())
+    {
+        m_gizmos.reset_all_states();
+        m_dirty = true;
+    }
+}
+
 bool GLCanvas3D::_is_shown_on_screen() const
 {
     return (m_canvas != nullptr) ? m_canvas->IsShownOnScreen() : false;
@@ -5429,7 +5661,24 @@ bool GLCanvas3D::_init_toolbar()
     if (!m_toolbar.is_enabled())
         return true;
 
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    ItemsIconsTexture::Metadata icons_data;
+    icons_data.filename = "toolbar.png";
+    icons_data.icon_size = 36;
+    icons_data.icon_border_size = 1;
+    icons_data.icon_gap_size = 1;
+
+    BackgroundTexture::Metadata background_data;
+    background_data.filename = "toolbar_background.png";
+    background_data.left = 16;
+    background_data.top = 16;
+    background_data.right = 16;
+    background_data.bottom = 16;
+
+    if (!m_toolbar.init(icons_data, background_data))
+#else
     if (!m_toolbar.init("toolbar.png", 36, 1, 1))
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
     {
         // unable to init the toolbar texture, disable it
         m_toolbar.set_enabled(false);
@@ -5438,6 +5687,10 @@ bool GLCanvas3D::_init_toolbar()
 
 //    m_toolbar.set_layout_type(GLToolbar::Layout::Vertical);
     m_toolbar.set_layout_type(GLToolbar::Layout::Horizontal);
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    m_toolbar.set_layout_orientation(GLToolbar::Layout::Top);
+    m_toolbar.set_border(5.0f);
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
     m_toolbar.set_separator_size(5);
     m_toolbar.set_gap_size(2);
 
@@ -5524,9 +5777,6 @@ bool GLCanvas3D::_init_toolbar()
     if (!m_toolbar.add_item(item))
         return false;
 
-    if (!m_toolbar.add_separator())
-        return false;
-
     enable_toolbar_item("add", true);
 
     return true;
@@ -5872,9 +6122,9 @@ void GLCanvas3D::_render_bed(float theta) const
     m_bed.render(theta);
 }
 
-void GLCanvas3D::_render_axes(bool depth_test) const
+void GLCanvas3D::_render_axes() const
 {
-    m_axes.render(depth_test);
+    m_axes.render();
 }
 
 void GLCanvas3D::_render_objects() const
@@ -5950,6 +6200,14 @@ void GLCanvas3D::_render_selection() const
         m_selection.render();
 }
 
+#if ENABLE_RENDER_SELECTION_CENTER
+void GLCanvas3D::_render_selection_center() const
+{
+    if (!m_gizmos.is_running())
+        m_selection.render_center();
+}
+#endif // ENABLE_RENDER_SELECTION_CENTER
+
 void GLCanvas3D::_render_warning_texture() const
 {
     if (!m_warning_texture_enabled)
@@ -6063,7 +6321,11 @@ void GLCanvas3D::_render_toolbar() const
 #if !ENABLE_REMOVE_TABS_FROM_PLATER
     _resize_toolbar();
 #endif // !ENABLE_REMOVE_TABS_FROM_PLATER
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    m_toolbar.render(*this);
+#else
     m_toolbar.render();
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
 }
 
 #if ENABLE_REMOVE_TABS_FROM_PLATER
@@ -6093,9 +6355,7 @@ void GLCanvas3D::_render_camera_target() const
     ::glColor3f(0.0f, 1.0f, 0.0f);
     ::glVertex3d(target(0), target(1) - half_length, target(2));
     ::glVertex3d(target(0), target(1) + half_length, target(2));
-    ::glEnd();
-
-    ::glBegin(GL_LINES);
+    // draw line for z axis
     ::glColor3f(0.0f, 0.0f, 1.0f);
     ::glVertex3d(target(0), target(1), target(2) - half_length);
     ::glVertex3d(target(0), target(1), target(2) + half_length);
@@ -7721,25 +7981,54 @@ void GLCanvas3D::_resize_toolbar() const
     float zoom = get_camera_zoom();
     float inv_zoom = (zoom != 0.0f) ? 1.0f / zoom : 0.0f;
 
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    GLToolbar::Layout::EOrientation orientation = m_toolbar.get_layout_orientation();
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+
     switch (m_toolbar.get_layout_type())
     {
     default:
     case GLToolbar::Layout::Horizontal:
     {
         // centers the toolbar on the top edge of the 3d scene
-        unsigned int toolbar_width = m_toolbar.get_width();
-        float top = (0.5f * (float)cnv_size.get_height() - 2.0f) * inv_zoom;
-        float left = -0.5f * (float)toolbar_width * inv_zoom;
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+        float top, left;
+        if (orientation == GLToolbar::Layout::Top)
+        {
+            top = 0.5f * (float)cnv_size.get_height() * inv_zoom;
+            left = -0.5f * m_toolbar.get_width() * inv_zoom;
+        }
+        else
+        {
+            top = (-0.5f * (float)cnv_size.get_height() + m_view_toolbar->get_height()) * inv_zoom;
+            left = -0.5f * m_toolbar.get_width() * inv_zoom;
+        }
+#else
+        float top = 0.5f * (float)cnv_size.get_height() * inv_zoom;
+        float left = -0.5f * m_toolbar.get_width() * inv_zoom;
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
         m_toolbar.set_position(top, left);
         break;
     }
     case GLToolbar::Layout::Vertical:
     {
         // centers the toolbar on the right edge of the 3d scene
-        unsigned int toolbar_width = m_toolbar.get_width();
-        unsigned int toolbar_height = m_toolbar.get_height();
-        float top = 0.5f * (float)toolbar_height * inv_zoom;
-        float left = (0.5f * (float)cnv_size.get_width() - toolbar_width - 2.0f) * inv_zoom;
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+        float top, left;
+        if (orientation == GLToolbar::Layout::Left)
+        {
+            top = 0.5f * m_toolbar.get_height() * inv_zoom;
+            left = (-0.5f * (float)cnv_size.get_width()) * inv_zoom;
+        }
+        else
+        {
+            top = 0.5f * m_toolbar.get_height() * inv_zoom;
+            left = (0.5f * (float)cnv_size.get_width() - m_toolbar.get_width()) * inv_zoom;
+        }
+#else
+        float top = 0.5f * m_toolbar.get_height() * inv_zoom;
+        float left = (0.5f * (float)cnv_size.get_width() - m_toolbar.get_width()) * inv_zoom;
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
         m_toolbar.set_position(top, left);
         break;
     }
@@ -7748,6 +8037,7 @@ void GLCanvas3D::_resize_toolbar() const
 #if ENABLE_REMOVE_TABS_FROM_PLATER
     if (m_view_toolbar != nullptr)
     {
+        // places the toolbar on the bottom-left corner of the 3d scene
         float top = (-0.5f * (float)cnv_size.get_height() + m_view_toolbar->get_height()) * inv_zoom;
         float left = -0.5f * (float)cnv_size.get_width() * inv_zoom;
         m_view_toolbar->set_position(top, left);

src/slic3r/GUI/GLCanvas3D.hpp

@@ -20,6 +20,8 @@ class wxTimerEvent;
 class wxPaintEvent;
 class wxGLCanvas;
 
+class GLUquadric;
+typedef class GLUquadric GLUquadricObj;
 
 namespace Slic3r {
 
@@ -155,7 +157,7 @@ class GLCanvas3D
 //        float distance;
 #if !ENABLE_CONSTRAINED_CAMERA_TARGET
         Vec3d target;
-#endif !// ENABLE_CONSTRAINED_CAMERA_TARGET
+#endif // ENABLE_CONSTRAINED_CAMERA_TARGET
 
     private:
 #if ENABLE_CONSTRAINED_CAMERA_TARGET
@@ -231,12 +233,20 @@ class GLCanvas3D
 
     struct Axes
     {
+        static const double Radius;
+        static const double ArrowBaseRadius;
+        static const double ArrowLength;
         Vec3d origin;
-        float length;
+        Vec3d length;
+        GLUquadricObj* m_quadric;
 
         Axes();
+        ~Axes();
 
-        void render(bool depth_test) const;
+        void render() const;
+
+    private:
+        void render_axis(double length) const;
     };
 
     class Shader
@@ -481,8 +491,15 @@ public:
         mutable BoundingBoxf3 m_bounding_box;
         mutable bool m_bounding_box_dirty;
 
+#if ENABLE_RENDER_SELECTION_CENTER
+        GLUquadricObj* m_quadric;
+#endif // ENABLE_RENDER_SELECTION_CENTER
+
     public:
         Selection();
+#if ENABLE_RENDER_SELECTION_CENTER
+        ~Selection();
+#endif // ENABLE_RENDER_SELECTION_CENTER
 
         void set_volumes(GLVolumePtrs* volumes);
 
@@ -515,6 +532,7 @@ public:
         bool is_wipe_tower() const { return m_type == WipeTower; }
         bool is_modifier() const { return (m_type == SingleModifier) || (m_type == MultipleModifier); }
         bool is_single_modifier() const { return m_type == SingleModifier; }
+        bool is_multiple_modifier() const { return m_type == MultipleModifier; }
         bool is_single_full_instance() const;
         bool is_multiple_full_instance() const { return m_type == MultipleFullInstance; }
         bool is_single_full_object() const { return m_type == SingleFullObject; }
@@ -526,6 +544,7 @@ public:
         bool is_from_single_object() const;
 
         bool contains_volume(unsigned int volume_idx) const { return std::find(m_list.begin(), m_list.end(), volume_idx) != m_list.end(); }
+        bool requires_uniform_scale() const;
 
         // Returns the the object id if the selection is from a single object, otherwise is -1
         int get_object_idx() const;
@@ -557,6 +576,9 @@ public:
         void erase();
 
         void render() const;
+#if ENABLE_RENDER_SELECTION_CENTER
+        void render_center() const;
+#endif // ENABLE_RENDER_SELECTION_CENTER
 
     private:
         void _update_valid();
@@ -577,6 +599,7 @@ public:
 #if ENABLE_ENSURE_ON_BED_WHILE_SCALING
         void _ensure_on_bed();
 #endif // ENABLE_ENSURE_ON_BED_WHILE_SCALING
+        bool _requires_local_axes() const;
     };
 
     class ClippingPlane
@@ -607,8 +630,8 @@ public:
 private:
     class Gizmos
     {
-        static const float OverlayTexturesScale;
-        static const float OverlayOffsetX;
+        static const float OverlayIconsScale;
+        static const float OverlayBorder;
         static const float OverlayGapY;
 
     public:
@@ -628,6 +651,9 @@ private:
         bool m_enabled;
         typedef std::map<EType, GLGizmoBase*> GizmosMap;
         GizmosMap m_gizmos;
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+        BackgroundTexture m_background_texture;
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
         EType m_current;
 
     public:
@@ -696,6 +722,9 @@ private:
         void _render_current_gizmo(const Selection& selection) const;
 
         float _get_total_overlay_height() const;
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+        float _get_total_overlay_width() const;
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
         GLGizmoBase* _get_current() const;
     };
 
@@ -769,11 +798,16 @@ private:
     mutable Gizmos m_gizmos;
     mutable GLToolbar m_toolbar;
 #if ENABLE_REMOVE_TABS_FROM_PLATER
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    GLToolbar* m_view_toolbar;
+#else
     GLRadioToolbar* m_view_toolbar;
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
 #endif // ENABLE_REMOVE_TABS_FROM_PLATER
     ClippingPlane m_clipping_planes[2];
     bool m_use_clipping_planes;
     mutable SlaCap m_sla_caps[2];
+    std::string m_sidebar_field;
 
     mutable GLVolumeCollection m_volumes;
     Selection m_selection;
@@ -824,7 +858,11 @@ public:
     wxGLCanvas* get_wxglcanvas() { return m_canvas; }
 
 #if ENABLE_REMOVE_TABS_FROM_PLATER
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    void set_view_toolbar(GLToolbar* toolbar) { m_view_toolbar = toolbar; }
+#else
     void set_view_toolbar(GLRadioToolbar* toolbar) { m_view_toolbar = toolbar; }
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
 #endif // ENABLE_REMOVE_TABS_FROM_PLATER
 
     bool init(bool useVBOs, bool use_legacy_opengl);
@@ -856,8 +894,7 @@ public:
     // fills the m_bed.m_grid_lines and sets m_bed.m_origin.
     // Sets m_bed.m_polygon to limit the object placement.
     void set_bed_shape(const Pointfs& shape);
-
-    void set_axes_length(float length);
+    void set_bed_axes_length(double length);
 
     void set_clipping_plane(unsigned int id, const ClippingPlane& plane)
     {
@@ -972,7 +1009,7 @@ public:
     void viewport_changed();
 #endif // ENABLE_CONSTRAINED_CAMERA_TARGET
 
-    void handle_sidebar_focus_event(const std::string& opt_key) {}
+    void handle_sidebar_focus_event(const std::string& opt_key, bool focus_on);
 
 private:
     bool _is_shown_on_screen() const;
@@ -997,9 +1034,12 @@ private:
     void _picking_pass() const;
     void _render_background() const;
     void _render_bed(float theta) const;
-    void _render_axes(bool depth_test) const;
+    void _render_axes() const;
     void _render_objects() const;
     void _render_selection() const;
+#if ENABLE_RENDER_SELECTION_CENTER
+    void _render_selection_center() const;
+#endif // ENABLE_RENDER_SELECTION_CENTER
     void _render_warning_texture() const;
     void _render_legend_texture() const;
     void _render_layer_editing_overlay() const;

src/slic3r/GUI/GLToolbar.hpp

@@ -77,6 +77,9 @@ public:
     void do_action(wxEvtHandler *target);
 
     bool is_enabled() const;
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    bool is_disabled() const;
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
     bool is_hovered() const;
     bool is_pressed() const;
 
@@ -94,7 +97,25 @@ private:
 // from left to right
 struct ItemsIconsTexture
 {
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    struct Metadata
+    {
+        // path of the file containing the icons' texture
+        std::string filename;
+        // size of the square icons, in pixels
+        unsigned int icon_size;
+        // size of the border, in pixels
+        unsigned int icon_border_size;
+        // distance between two adjacent icons (to avoid filtering artifacts), in pixels
+        unsigned int icon_gap_size;
+
+        Metadata();
+    };
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
     GLTexture texture;
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    Metadata metadata;
+#else
     // size of the square icons, in pixels
     unsigned int items_icon_size;
     // distance from the border, in pixels
@@ -103,25 +124,82 @@ struct ItemsIconsTexture
     unsigned int items_icon_gap_size;
 
     ItemsIconsTexture();
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
 };
 
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+struct BackgroundTexture
+{
+    struct Metadata
+    {
+        // path of the file containing the background texture
+        std::string filename;
+        // size of the left edge, in pixels
+        unsigned int left;
+        // size of the right edge, in pixels
+        unsigned int right;
+        // size of the top edge, in pixels
+        unsigned int top;
+        // size of the bottom edge, in pixels
+        unsigned int bottom;
+
+        Metadata();
+    };
+
+    GLTexture texture;
+    Metadata metadata;
+};
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+
 class GLToolbar
 {
 public:
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    enum EType : unsigned char
+    {
+        Normal,
+        Radio,
+        Num_Types
+    };
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+
     struct Layout
     {
-        enum Type : unsigned char
+        enum EType : unsigned char
         {
             Horizontal,
             Vertical,
             Num_Types
         };
 
-        Type type;
+        enum EOrientation : unsigned int
+        {
+            Top,
+            Bottom,
+            Left,
+            Right,
+            Center,
+            Num_Locations
+        };
+
+        EType type;
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+        EOrientation orientation;
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
         float top;
         float left;
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+        float border;
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
         float separator_size;
         float gap_size;
+        float icons_scale;
+
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+        float width;
+        float height;
+        bool dirty;
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
 
         Layout();
     };
@@ -129,25 +207,50 @@ public:
 private:
     typedef std::vector<GLToolbarItem*> ItemsList;
 
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    EType m_type;
+#else
     GLCanvas3D& m_parent;
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
     bool m_enabled;
     ItemsIconsTexture m_icons_texture;
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    BackgroundTexture m_background_texture;
+    mutable Layout m_layout;
+#else
     Layout m_layout;
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
 
     ItemsList m_items;
 
 public:
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    explicit GLToolbar(EType type);
+#else
     explicit GLToolbar(GLCanvas3D& parent);
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
     ~GLToolbar();
 
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    bool init(const ItemsIconsTexture::Metadata& icons_texture, const BackgroundTexture::Metadata& background_texture);
+#else
     bool init(const std::string& icons_texture_filename, unsigned int items_icon_size, unsigned int items_icon_border_size, unsigned int items_icon_gap_size);
-    
-    Layout::Type get_layout_type() const;
-    void set_layout_type(Layout::Type type);
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+
+    Layout::EType get_layout_type() const;
+    void set_layout_type(Layout::EType type);
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    Layout::EOrientation get_layout_orientation() const;
+    void set_layout_orientation(Layout::EOrientation orientation);
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
 
     void set_position(float top, float left);
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    void set_border(float border);
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
     void set_separator_size(float size);
     void set_gap_size(float size);
+    void set_icons_scale(float scale);
 
     bool is_enabled() const;
     void set_enabled(bool enable);
@@ -160,42 +263,89 @@ public:
 
     void enable_item(const std::string& name);
     void disable_item(const std::string& name);
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    void select_item(const std::string& name);
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
 
     bool is_item_pressed(const std::string& name) const;
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    bool is_item_disabled(const std::string& name) const;
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
 
 #if ENABLE_REMOVE_TABS_FROM_PLATER
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    std::string update_hover_state(const Vec2d& mouse_pos, GLCanvas3D& parent);
+#else
     std::string update_hover_state(const Vec2d& mouse_pos);
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+#else
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    void update_hover_state(const Vec2d& mouse_pos, GLCanvas3D& parent);
 #else
     void update_hover_state(const Vec2d& mouse_pos);
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
 #endif // ENABLE_REMOVE_TABS_FROM_PLATER
 
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    // returns the id of the item under the given mouse position or -1 if none
+    int contains_mouse(const Vec2d& mouse_pos, const GLCanvas3D& parent) const;
+
+    void do_action(unsigned int item_id, GLCanvas3D& parent);
+#else
     // returns the id of the item under the given mouse position or -1 if none
     int contains_mouse(const Vec2d& mouse_pos) const;
 
     void do_action(unsigned int item_id);
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
 
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    void render(const GLCanvas3D& parent) const;    
+#else
     void render() const;
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
 
 private:
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    void calc_layout() const;
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
     float get_width_horizontal() const;
     float get_width_vertical() const;
     float get_height_horizontal() const;
     float get_height_vertical() const;
     float get_main_size() const;
 #if ENABLE_REMOVE_TABS_FROM_PLATER
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    std::string update_hover_state_horizontal(const Vec2d& mouse_pos, GLCanvas3D& parent);
+    std::string update_hover_state_vertical(const Vec2d& mouse_pos, GLCanvas3D& parent);
+#else
     std::string update_hover_state_horizontal(const Vec2d& mouse_pos);
     std::string update_hover_state_vertical(const Vec2d& mouse_pos);
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+#else
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    void update_hover_state_horizontal(const Vec2d& mouse_pos, GLCanvas3D& parent);
+    void update_hover_state_vertical(const Vec2d& mouse_pos, GLCanvas3D& parent);
 #else
     void update_hover_state_horizontal(const Vec2d& mouse_pos);
     void update_hover_state_vertical(const Vec2d& mouse_pos);
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
 #endif // ENABLE_REMOVE_TABS_FROM_PLATER
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    int contains_mouse_horizontal(const Vec2d& mouse_pos, const GLCanvas3D& parent) const;
+    int contains_mouse_vertical(const Vec2d& mouse_pos, const GLCanvas3D& parent) const;
+
+    void render_horizontal(const GLCanvas3D& parent) const;
+    void render_vertical(const GLCanvas3D& parent) const;
+#else
     int contains_mouse_horizontal(const Vec2d& mouse_pos) const;
     int contains_mouse_vertical(const Vec2d& mouse_pos) const;
 
     void render_horizontal() const;
     void render_vertical() const;
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
 };
 
+#if !ENABLE_TOOLBAR_BACKGROUND_TEXTURE
 class GLRadioToolbarItem
 {
 public:
@@ -274,6 +424,7 @@ public:
 
     void render(const GLCanvas3D& parent) const;
 };
+#endif // !ENABLE_TOOLBAR_BACKGROUND_TEXTURE
 
 } // namespace GUI
 } // namespace Slic3r

src/slic3r/GUI/GUI.cpp

@@ -195,6 +195,8 @@ void change_opt_value(DynamicPrintConfig& config, const t_config_option_key& opt
 				config.set_key_value(opt_key, new ConfigOptionEnum<SeamPosition>(boost::any_cast<SeamPosition>(value)));
 			else if (opt_key.compare("host_type") == 0)
 				config.set_key_value(opt_key, new ConfigOptionEnum<PrintHostType>(boost::any_cast<PrintHostType>(value)));
+			else if (opt_key.compare("display_orientation") == 0)
+				config.set_key_value(opt_key, new ConfigOptionEnum<SLADisplayOrientation>(boost::any_cast<SLADisplayOrientation>(value)));
 			}
 			break;
 		case coPoints:{

src/slic3r/GUI/GUI_App.cpp

@@ -73,7 +73,6 @@ GUI_App::GUI_App()
     : wxApp()
 #if ENABLE_IMGUI
     , m_imgui(new ImGuiWrapper())
-    , m_printhost_queue(new PrintHostJobQueue())
 #endif // ENABLE_IMGUI
 {}
 
@@ -142,6 +141,8 @@ bool GUI_App::OnInit()
     update_mode();
     SetTopWindow(mainframe);
 
+    m_printhost_job_queue.reset(new PrintHostJobQueue(mainframe->printhost_queue_dlg()));
+
     CallAfter([this]() {
         // temporary workaround for the correct behavior of the Scrolled sidebar panel 
         auto& panel = sidebar();

src/slic3r/GUI/GUI_App.hpp

@@ -92,7 +92,7 @@ class GUI_App : public wxApp
     std::unique_ptr<ImGuiWrapper> m_imgui;
 #endif // ENABLE_IMGUI
 
-    std::unique_ptr<PrintHostJobQueue> m_printhost_queue;
+    std::unique_ptr<PrintHostJobQueue> m_printhost_job_queue;
 
 public:
     bool            OnInit() override;
@@ -164,7 +164,7 @@ public:
     ImGuiWrapper* imgui() { return m_imgui.get(); }
 #endif // ENABLE_IMGUI
 
-    PrintHostJobQueue& printhost_queue() { return *m_printhost_queue.get(); }
+    PrintHostJobQueue& printhost_job_queue() { return *m_printhost_job_queue.get(); }
 
 };
 DECLARE_APP(GUI_App)

src/slic3r/GUI/GUI_ObjectList.cpp

@@ -982,6 +982,10 @@ void ObjectList::del_instances_from_object(const int obj_idx)
 
 bool ObjectList::del_subobject_from_object(const int obj_idx, const int idx, const int type)
 {
+	if (obj_idx == 1000)
+		// Cannot delete a wipe tower.
+		return false;
+
     if (type == itVolume) {
         const auto volume = (*m_objects)[obj_idx]->volumes[idx];
 
@@ -1399,6 +1403,20 @@ void ObjectList::update_selections()
     auto& selection = wxGetApp().plater()->canvas3D()->get_selection();
     wxDataViewItemArray sels;
 
+    // We doesn't update selection if SettingsItem for the current object/part is selected
+    if (GetSelectedItemsCount() == 1 && m_objects_model->GetItemType(GetSelection()) == itSettings )
+    {
+        const auto item = GetSelection();
+        if (selection.is_single_full_object() && 
+            m_objects_model->GetIdByItem(m_objects_model->GetParent(item)) == selection.get_object_idx())
+            return; 
+        if (selection.is_single_volume() || selection.is_modifier()) {
+            const auto gl_vol = selection.get_volume(*selection.get_volume_idxs().begin());
+            if (m_objects_model->GetVolumeIdByItem(m_objects_model->GetParent(item)) == gl_vol->volume_idx())
+                return;
+        }
+    }
+
     if (selection.is_single_full_object())
     {
         sels.Add(m_objects_model->GetItemById(selection.get_object_idx()));
@@ -1459,13 +1477,11 @@ void ObjectList::update_selections()
     
     select_items(sels);
 
-#ifdef __WXMSW__
     if (GetSelection()) {
-        const int sel_item_row = GetRowByItem(GetSelection());
+        const int sel_item_row = m_objects_model->GetRowByItem(GetSelection());
         ScrollLines(sel_item_row - m_selected_row);
         m_selected_row = sel_item_row;
     }
-#endif //__WXMSW__
 }
 
 void ObjectList::update_selections_on_canvas()
@@ -1656,7 +1672,9 @@ void ObjectList::change_part_type()
 void ObjectList::last_volume_is_deleted(const int obj_idx)
 {
 
-    if (obj_idx < 0 || (*m_objects).empty() || (*m_objects)[obj_idx]->volumes.empty())
+    if (obj_idx < 0 || m_objects->empty() ||
+        obj_idx <= m_objects->size() ||
+        (*m_objects)[obj_idx]->volumes.empty())
         return;
     auto volume = (*m_objects)[obj_idx]->volumes[0];
 

src/slic3r/GUI/GUI_ObjectManipulation.cpp

@@ -25,18 +25,6 @@ ObjectManipulation::ObjectManipulation(wxWindow* parent) :
     m_og->m_on_change = [this](const std::string& opt_key, const boost::any& value) {
         std::vector<std::string> axes{ "_x", "_y", "_z" };
 
-        if (opt_key == "scale_unit") {
-            const wxString& selection = boost::any_cast<wxString>(value);
-            for (auto axis : axes) {
-                std::string key = "scale" + axis;
-                m_og->set_side_text(key, selection);
-            }
-
-            m_is_percent_scale = selection == _("%");
-            update_scale_values();
-            return;
-        }
-
         std::string param; 
         std::copy(opt_key.begin(), opt_key.end() - 2, std::back_inserter(param));
 
@@ -51,29 +39,51 @@ ObjectManipulation::ObjectManipulation(wxWindow* parent) :
             change_rotation_value(new_value);
         else if (param == "scale")
             change_scale_value(new_value);
+        else if (param == "size")
+            change_size_value(new_value);
+
+        wxGetApp().plater()->canvas3D()->handle_sidebar_focus_event(opt_key, false);
     };
 
     m_og->m_fill_empty_value = [this](const std::string& opt_key)
     {
-        if (opt_key == "scale_unit")
-            return;
-
         std::string param;
         std::copy(opt_key.begin(), opt_key.end() - 2, std::back_inserter(param)); 
+
+        double value = 0.0;
+
         if (param == "position") {
             int axis = opt_key.back() == 'x' ? 0 :
                        opt_key.back() == 'y' ? 1 : 2;
 
-            m_og->set_value(opt_key, double_to_string(cache_position(axis)));
-            return;
+            value = cache_position(axis);
+        }
+        else if (param == "rotation") {
+            int axis = opt_key.back() == 'x' ? 0 :
+                opt_key.back() == 'y' ? 1 : 2;
+
+            value = cache_rotation(axis);
+        }
+        else if (param == "scale") {
+            int axis = opt_key.back() == 'x' ? 0 :
+                opt_key.back() == 'y' ? 1 : 2;
+
+            value = cache_scale(axis);
+        }
+        else if (param == "size") {
+            int axis = opt_key.back() == 'x' ? 0 :
+                opt_key.back() == 'y' ? 1 : 2;
+
+            value = cache_size(axis);
         }
 
-        m_og->set_value(opt_key, double_to_string(0.0));
+        m_og->set_value(opt_key, double_to_string(value));
+        wxGetApp().plater()->canvas3D()->handle_sidebar_focus_event(opt_key, false);
     };
 
     m_og->m_set_focus = [this](const std::string& opt_key)
     {
-        wxGetApp().plater()->canvas3D()->handle_sidebar_focus_event(opt_key);
+        wxGetApp().plater()->canvas3D()->handle_sidebar_focus_event(opt_key, true);
     };
 
     ConfigOptionDef def;
@@ -106,59 +116,37 @@ ObjectManipulation::ObjectManipulation(wxWindow* parent) :
     auto add_og_to_object_settings = [](const std::string& option_name, const std::string& sidetext)
     {
         Line line = { _(option_name), "" };
-        if (option_name == "Scale") {
-            line.near_label_widget = [](wxWindow* parent) {
-                auto btn = new PrusaLockButton(parent, wxID_ANY);
-                btn->Bind(wxEVT_BUTTON, [btn](wxCommandEvent &event) {
-                    event.Skip();
-                    wxTheApp->CallAfter([btn]() {
-                        wxGetApp().obj_manipul()->set_uniform_scaling(btn->IsLocked());
-                    });
-                });
-                return btn;
-            };
-        }
-
         ConfigOptionDef def;
         def.type = coFloat;
         def.default_value = new ConfigOptionFloat(0.0);
         def.width = 50;
 
         if (option_name == "Rotation")
+        {
             def.min = -360;
+            def.max = 360;
+        }
 
         const std::string lower_name = boost::algorithm::to_lower_copy(option_name);
 
         std::vector<std::string> axes{ "x", "y", "z" };
         for (auto axis : axes) {
-            if (axis == "z" && option_name != "Scale")
+            if (axis == "z")
                 def.sidetext = sidetext;
             Option option = Option(def, lower_name + "_" + axis);
             option.opt.full_width = true;
             line.append_option(option);
         }
 
-        if (option_name == "Scale")
-        {
-            def.width = 45;
-            def.type = coStrings;
-            def.gui_type = "select_open";
-            def.enum_labels.push_back(L("%"));
-            def.enum_labels.push_back(L("mm"));
-            def.default_value = new ConfigOptionStrings{ "mm" };
-
-            const Option option = Option(def, lower_name + "_unit");
-            line.append_option(option);
-        }
-
         return line;
     };
 
 
     // Settings table
     m_og->append_line(add_og_to_object_settings(L("Position"), L("mm")), &m_move_Label);
-    m_og->append_line(add_og_to_object_settings(L("Rotation"), "°"));
-    m_og->append_line(add_og_to_object_settings(L("Scale"), "mm"));
+    m_og->append_line(add_og_to_object_settings(L("Rotation"), "°"), &m_rotate_Label);
+    m_og->append_line(add_og_to_object_settings(L("Scale"), "%"), &m_scale_Label);
+    m_og->append_line(add_og_to_object_settings(L("Size"), "mm"));
 
     /* Unused parameter at this time
     def.label = L("Place on bed");
@@ -204,9 +192,11 @@ int ObjectManipulation::ol_selection()
 
 void ObjectManipulation::update_settings_value(const GLCanvas3D::Selection& selection)
 {
-    wxString move_label = _(L("Position"));
+    wxString move_label = _(L("Position:"));
+    wxString rotate_label = _(L("Rotation:"));
+    wxString scale_label = _(L("Scale factors:"));
 #if ENABLE_MODELVOLUME_TRANSFORM
-    if (selection.is_single_full_instance() || selection.is_single_full_object())
+    if (selection.is_single_full_instance())
 #else
     if (selection.is_single_full_object())
     {
@@ -232,6 +222,7 @@ void ObjectManipulation::update_settings_value(const GLCanvas3D::Selection& sele
         update_position_value(volume->get_instance_offset());
         update_rotation_value(volume->get_instance_rotation());
         update_scale_value(volume->get_instance_scaling_factor());
+        update_size_value(volume->get_instance_transformation().get_matrix(true, true) * volume->bounding_box.size());
 #else
         update_position_value(volume->get_offset());
         update_rotation_value(volume->get_rotation());
@@ -239,19 +230,15 @@ void ObjectManipulation::update_settings_value(const GLCanvas3D::Selection& sele
 #endif // ENABLE_MODELVOLUME_TRANSFORM
         m_og->enable();
     }
-    else if (selection.is_wipe_tower())
+    else if (selection.is_single_full_object())
     {
-        // the selection contains a single volume
-        const GLVolume* volume = selection.get_volume(*selection.get_volume_idxs().begin());
-#if ENABLE_MODELVOLUME_TRANSFORM
-        update_position_value(volume->get_volume_offset());
-        update_rotation_value(volume->get_volume_rotation());
-        update_scale_value(volume->get_volume_scaling_factor());
-#else
-        update_position_value(volume->get_offset());
-        update_rotation_value(volume->get_rotation());
-        update_scale_value(volume->get_scaling_factor());
-#endif // ENABLE_MODELVOLUME_TRANSFORM
+        const BoundingBoxf3& box = selection.get_bounding_box();
+        update_position_value(box.center());
+        reset_rotation_value();
+        reset_scale_value();
+        update_size_value(box.size());
+        rotate_label = _(L("Rotate:"));
+        scale_label = _(L("Scale:"));
         m_og->enable();
     }
     else if (selection.is_single_modifier() || selection.is_single_volume())
@@ -262,6 +249,7 @@ void ObjectManipulation::update_settings_value(const GLCanvas3D::Selection& sele
         update_position_value(volume->get_volume_offset());
         update_rotation_value(volume->get_volume_rotation());
         update_scale_value(volume->get_volume_scaling_factor());
+        update_size_value(volume->bounding_box.size());
 #else
         update_position_value(volume->get_offset());
         update_rotation_value(volume->get_rotation());
@@ -272,14 +260,18 @@ void ObjectManipulation::update_settings_value(const GLCanvas3D::Selection& sele
     else if (wxGetApp().obj_list()->multiple_selection())
     {
         reset_settings_value();
-        move_label = _(L("Displacement"));
+        move_label = _(L("Translate:"));
+        rotate_label = _(L("Rotate:"));
+        scale_label = _(L("Scale:"));
+        update_size_value(selection.get_bounding_box().size());
         m_og->enable();
     }
     else
         reset_settings_value();
 
     m_move_Label->SetLabel(move_label);
-    m_og->get_field("scale_unit")->disable();// temporary decision 
+    m_rotate_Label->SetLabel(rotate_label);
+    m_scale_Label->SetLabel(scale_label);
 }
 
 void ObjectManipulation::reset_settings_value()
@@ -299,7 +291,7 @@ void ObjectManipulation::reset_position_value()
     m_og->set_value("position_y", def_0);
     m_og->set_value("position_z", def_0);
 
-    cache_position = { 0., 0., 0. };
+    cache_position = Vec3d::Zero();
 }
 
 void ObjectManipulation::reset_rotation_value()
@@ -307,68 +299,26 @@ void ObjectManipulation::reset_rotation_value()
     m_og->set_value("rotation_x", def_0);
     m_og->set_value("rotation_y", def_0);
     m_og->set_value("rotation_z", def_0);
+
+    cache_rotation = Vec3d::Zero();
 }
 
 void ObjectManipulation::reset_scale_value()
 {
-    m_is_percent_scale = true;
-    m_og->set_value("scale_unit", _("%"));
     m_og->set_value("scale_x", def_100);
     m_og->set_value("scale_y", def_100);
     m_og->set_value("scale_z", def_100);
+
+    cache_scale = Vec3d(100.0, 100.0, 100.0);
 }
 
-void ObjectManipulation::update_values()
+void ObjectManipulation::reset_size_value()
 {
-    int selection = ol_selection();
-    if (selection < 0 || wxGetApp().mainframe->m_plater->model().objects.size() <= selection) {
-        m_og->set_value("position_x", def_0);
-        m_og->set_value("position_y", def_0);
-        m_og->set_value("position_z", def_0);
-        m_og->set_value("scale_x"   , def_0);
-        m_og->set_value("scale_y"   , def_0);
-        m_og->set_value("scale_z"   , def_0);
-        m_og->set_value("rotation_x", def_0);
-        m_og->set_value("rotation_y", def_0);
-        m_og->set_value("rotation_z", def_0);
-        m_og->disable();
-        return;
-    }
-    m_is_percent_scale = boost::any_cast<wxString>(m_og->get_value("scale_unit")) == _("%");
+    m_og->set_value("size_x", def_0);
+    m_og->set_value("size_y", def_0);
+    m_og->set_value("size_z", def_0);
 
-    update_position_values();
-    update_scale_values();
-    update_rotation_values();
-    m_og->enable();
-}
-
-void ObjectManipulation::update_scale_values()
-{
-    int selection = ol_selection();
-    ModelObjectPtrs& objects = wxGetApp().mainframe->m_plater->model().objects;
-
-    auto instance = objects[selection]->instances.front();
-    auto size = objects[selection]->instance_bounding_box(0).size();
-
-    if (m_is_percent_scale) {
-        m_og->set_value("scale_x", double_to_string(instance->get_scaling_factor(X) * 100, 2));
-        m_og->set_value("scale_y", double_to_string(instance->get_scaling_factor(Y) * 100, 2));
-        m_og->set_value("scale_z", double_to_string(instance->get_scaling_factor(Z) * 100, 2));
-    }
-    else {
-        m_og->set_value("scale_x", double_to_string(size(0), 2));
-        m_og->set_value("scale_y", double_to_string(size(1), 2));
-        m_og->set_value("scale_z", double_to_string(size(2), 2));
-    }
-}
-
-void ObjectManipulation::update_position_values()
-{
-    auto instance = wxGetApp().mainframe->m_plater->model().objects[ol_selection()]->instances.front();
-
-    m_og->set_value("position_x", double_to_string(instance->get_offset(X), 2));
-    m_og->set_value("position_y", double_to_string(instance->get_offset(Y), 2));
-    m_og->set_value("position_z", double_to_string(instance->get_offset(Z), 2));
+    cache_size = Vec3d::Zero();
 }
 
 void ObjectManipulation::update_position_value(const Vec3d& position)
@@ -382,42 +332,21 @@ void ObjectManipulation::update_position_value(const Vec3d& position)
 
 void ObjectManipulation::update_scale_value(const Vec3d& scaling_factor)
 {
-    // this is temporary
-    // to be able to update the values as size
-    // we need to store somewhere the original size
-    // or have it passed as parameter
-    if (!m_is_percent_scale) {
-        m_is_percent_scale = true;
-        m_og->set_value("scale_unit", _("%"));
-    }
-
     auto scale = scaling_factor * 100.0;
     m_og->set_value("scale_x", double_to_string(scale(0), 2));
     m_og->set_value("scale_y", double_to_string(scale(1), 2));
     m_og->set_value("scale_z", double_to_string(scale(2), 2));
+
+    cache_scale = scale;
 }
 
-void ObjectManipulation::update_rotation_values()
+void ObjectManipulation::update_size_value(const Vec3d& size)
 {
-    update_rotation_value(wxGetApp().mainframe->m_plater->model().objects[ol_selection()]->instances.front()->get_rotation());
-}
+    m_og->set_value("size_x", double_to_string(size(0), 2));
+    m_og->set_value("size_y", double_to_string(size(1), 2));
+    m_og->set_value("size_z", double_to_string(size(2), 2));
 
-void ObjectManipulation::update_rotation_value(double angle, Axis axis)
-{
-    std::string axis_str;
-    switch (axis) {
-    case X: {
-        axis_str = "rotation_x";
-        break; }
-    case Y: {
-        axis_str = "rotation_y";
-        break; }
-    case Z: {
-        axis_str = "rotation_z";
-        break; }
-    }
-
-    m_og->set_value(axis_str, round_nearest(int(Geometry::rad2deg(angle)), 0));
+    cache_size = size;
 }
 
 void ObjectManipulation::update_rotation_value(const Vec3d& rotation)
@@ -425,16 +354,15 @@ void ObjectManipulation::update_rotation_value(const Vec3d& rotation)
     m_og->set_value("rotation_x", double_to_string(round_nearest(Geometry::rad2deg(rotation(0)), 0), 2));
     m_og->set_value("rotation_y", double_to_string(round_nearest(Geometry::rad2deg(rotation(1)), 0), 2));
     m_og->set_value("rotation_z", double_to_string(round_nearest(Geometry::rad2deg(rotation(2)), 0), 2));
-}
 
+    cache_rotation = rotation;
+}
 
 void ObjectManipulation::change_position_value(const Vec3d& position)
 {
-    Vec3d displacement(position - cache_position);
-
     auto canvas = wxGetApp().plater()->canvas3D();
     canvas->get_selection().start_dragging();
-    canvas->get_selection().translate(displacement);
+    canvas->get_selection().translate(position - cache_position);
     canvas->do_move();
 
     cache_position = position;
@@ -442,38 +370,62 @@ void ObjectManipulation::change_position_value(const Vec3d& position)
 
 void ObjectManipulation::change_rotation_value(const Vec3d& rotation)
 {
+    GLCanvas3D* canvas = wxGetApp().plater()->canvas3D();
+    const GLCanvas3D::Selection& selection = canvas->get_selection();
+
     Vec3d rad_rotation;
     for (size_t i = 0; i < 3; ++i)
+    {
         rad_rotation(i) = Geometry::deg2rad(rotation(i));
-    auto canvas = wxGetApp().plater()->canvas3D();
+    }
+
     canvas->get_selection().start_dragging();
-    canvas->get_selection().rotate(rad_rotation, false);
+    canvas->get_selection().rotate(rad_rotation, selection.is_single_full_instance());
     canvas->do_rotate();
 }
 
 void ObjectManipulation::change_scale_value(const Vec3d& scale)
 {
-    Vec3d scaling_factor;
-    if (m_is_percent_scale)
-        scaling_factor = scale*0.01;
-    else {
-        int selection = ol_selection();
-        ModelObjectPtrs& objects = *wxGetApp().model_objects();
-
-        auto size = objects[selection]->instance_bounding_box(0).size();
-        for (size_t i = 0; i < 3; ++i)
-            scaling_factor(i) = scale(i) / size(i);
+    Vec3d scaling_factor = scale;
+    const GLCanvas3D::Selection& selection = wxGetApp().plater()->canvas3D()->get_selection();
+    if (selection.requires_uniform_scale())
+    {
+        Vec3d abs_scale_diff = (scale - cache_scale).cwiseAbs();
+        double max_diff = abs_scale_diff(X);
+        Axis max_diff_axis = X;
+        if (max_diff < abs_scale_diff(Y))
+        {
+            max_diff = abs_scale_diff(Y);
+            max_diff_axis = Y;
+        }
+        if (max_diff < abs_scale_diff(Z))
+        {
+            max_diff = abs_scale_diff(Z);
+            max_diff_axis = Z;
+        }
+        scaling_factor = Vec3d(scale(max_diff_axis), scale(max_diff_axis), scale(max_diff_axis));
     }
 
+    scaling_factor *= 0.01;
+
     auto canvas = wxGetApp().plater()->canvas3D();
     canvas->get_selection().start_dragging();
     canvas->get_selection().scale(scaling_factor, false);
     canvas->do_scale();
 }
 
-void ObjectManipulation::print_cashe_value(const std::string& label, const Vec3d& v)
+void ObjectManipulation::change_size_value(const Vec3d& size)
 {
-    std::cout << label << " => " << " X:" << v(0) << " Y:" << v(1) << " Z:" << v(2) << std::endl;
+    const GLCanvas3D::Selection& selection = wxGetApp().plater()->canvas3D()->get_selection();
+
+    Vec3d ref_size = cache_size;
+    if (selection.is_single_full_instance())
+    {
+        const GLVolume* volume = selection.get_volume(*selection.get_volume_idxs().begin());
+        ref_size = volume->bounding_box.size();
+    }
+
+    change_scale_value(100.0 * Vec3d(size(0) / ref_size(0), size(1) / ref_size(1), size(2) / ref_size(2)));
 }
 
 } //namespace GUI

src/slic3r/GUI/GUI_ObjectManipulation.hpp

@@ -14,12 +14,14 @@ namespace GUI {
 
 class ObjectManipulation : public OG_Settings
 {
-    bool        m_is_percent_scale = false;         // true  -> percentage scale unit  
-                                                    // false -> uniform scale unit  
-    bool        m_is_uniform_scale = false;         // It indicates if scale is uniform
-
     Vec3d       cache_position   { 0., 0., 0. };
+    Vec3d       cache_rotation   { 0., 0., 0. };
+    Vec3d       cache_scale      { 100., 100., 100. };
+    Vec3d       cache_size       { 0., 0., 0. };
+
     wxStaticText*   m_move_Label = nullptr;
+    wxStaticText*   m_scale_Label = nullptr;
+    wxStaticText*   m_rotate_Label = nullptr;
 
 public:
     ObjectManipulation(wxWindow* parent);
@@ -36,31 +38,22 @@ public:
     void reset_position_value();
     void reset_rotation_value();
     void reset_scale_value();
+    void reset_size_value();
 
-    void update_values();
     // update position values displacements or "gizmos"
-    void update_position_values();
     void update_position_value(const Vec3d& position);
     // update scale values after scale unit changing or "gizmos"
-    void update_scale_values();
     void update_scale_value(const Vec3d& scaling_factor);
-    // update rotation values object selection changing
-    void update_rotation_values();
+    // update size values after scale unit changing or "gizmos"
+    void update_size_value(const Vec3d& size);
     // update rotation value after "gizmos"
-    void update_rotation_value(double angle, Axis axis);
     void update_rotation_value(const Vec3d& rotation);
 
-    void set_uniform_scaling(const bool uniform_scale) { m_is_uniform_scale = uniform_scale; }
-
-
     // change values 
     void    change_position_value(const Vec3d& position);
     void    change_rotation_value(const Vec3d& rotation);
     void    change_scale_value(const Vec3d& scale);
-
-
-private:
-    void    print_cashe_value(const std::string& label, const Vec3d& value);
+    void    change_size_value(const Vec3d& size);
 };
 
 }}

src/slic3r/GUI/GUI_Preview.cpp

@@ -92,7 +92,11 @@ bool View3D::init(wxWindow* parent, Model* model, DynamicPrintConfig* config, Ba
     return true;
 }
 
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+void View3D::set_view_toolbar(GLToolbar* toolbar)
+#else
 void View3D::set_view_toolbar(GLRadioToolbar* toolbar)
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
 {
     if (m_canvas != nullptr)
         m_canvas->set_view_toolbar(toolbar);
@@ -365,7 +369,11 @@ Preview::~Preview()
 }
 
 #if ENABLE_REMOVE_TABS_FROM_PLATER
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+void Preview::set_view_toolbar(GLToolbar* toolbar)
+#else
 void Preview::set_view_toolbar(GLRadioToolbar* toolbar)
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
 {
     if (m_canvas != nullptr)
         m_canvas->set_view_toolbar(toolbar);
@@ -377,17 +385,13 @@ void Preview::set_number_extruders(unsigned int number_extruders)
     if (m_number_extruders != number_extruders)
     {
         m_number_extruders = number_extruders;
-        int type = 0; // color by a feature type
-        if (number_extruders > 1)
-        {
-            int tool_idx = m_choice_view_type->FindString(_(L("Tool")));
-            int type = (number_extruders > 1) ? tool_idx /* color by a tool number */  : 0; // color by a feature type
-            m_choice_view_type->SetSelection(type);
-            if ((0 <= type) && (type < (int)GCodePreviewData::Extrusion::Num_View_Types))
-                m_gcode_preview_data->extrusion.view_type = (GCodePreviewData::Extrusion::EViewType)type;
+        int tool_idx = m_choice_view_type->FindString(_(L("Tool")));
+        int type = (number_extruders > 1) ? tool_idx /* color by a tool number */  : 0; // color by a feature type
+        m_choice_view_type->SetSelection(type);
+        if ((0 <= type) && (type < (int)GCodePreviewData::Extrusion::Num_View_Types))
+            m_gcode_preview_data->extrusion.view_type = (GCodePreviewData::Extrusion::EViewType)type;
 
-            m_preferred_color_mode = (type == tool_idx) ? "tool_or_feature" : "feature";
-        }
+        m_preferred_color_mode = (type == tool_idx) ? "tool_or_feature" : "feature";
     }
 }
 

src/slic3r/GUI/GUI_Preview.hpp

@@ -28,9 +28,15 @@ class Model;
 namespace GUI {
 
 class GLCanvas3D;
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+#if ENABLE_REMOVE_TABS_FROM_PLATER
+class GLToolbar;
+#endif // ENABLE_REMOVE_TABS_FROM_PLATER
+#else
 #if ENABLE_REMOVE_TABS_FROM_PLATER
 class GLRadioToolbar;
 #endif // ENABLE_REMOVE_TABS_FROM_PLATER
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
 
 #if ENABLE_REMOVE_TABS_FROM_PLATER
 class View3D : public wxPanel
@@ -53,7 +59,11 @@ public:
     wxGLCanvas* get_wxglcanvas() { return m_canvas_widget; }
     GLCanvas3D* get_canvas3d() { return m_canvas; }
 
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    void set_view_toolbar(GLToolbar* toolbar);
+#else
     void set_view_toolbar(GLRadioToolbar* toolbar);
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
 
     void set_as_dirty();
     void set_bed_shape(const Pointfs& shape);
@@ -122,7 +132,11 @@ public:
     wxGLCanvas* get_wxglcanvas() { return m_canvas_widget; }
 
 #if ENABLE_REMOVE_TABS_FROM_PLATER
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    void set_view_toolbar(GLToolbar* toolbar);
+#else
     void set_view_toolbar(GLRadioToolbar* toolbar);
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
 #endif // ENABLE_REMOVE_TABS_FROM_PLATER
 
     void set_number_extruders(unsigned int number_extruders);

src/slic3r/GUI/MainFrame.cpp

@@ -18,6 +18,7 @@
 #include "ProgressStatusBar.hpp"
 #include "3DScene.hpp"
 #include "AppConfig.hpp"
+#include "PrintHostDialogs.hpp"
 #include "wxExtensions.hpp"
 #include "I18N.hpp"
 
@@ -30,7 +31,8 @@ namespace GUI {
 MainFrame::MainFrame(const bool no_plater, const bool loaded) :
 wxFrame(NULL, wxID_ANY, SLIC3R_BUILD, wxDefaultPosition, wxDefaultSize, wxDEFAULT_FRAME_STYLE),
         m_no_plater(no_plater),
-        m_loaded(loaded)
+        m_loaded(loaded),
+        m_printhost_queue_dlg(new PrintHostQueueDialog(this))
 {
     // Load the icon either from the exe, or from the ico file.
 #if _WIN32
@@ -326,7 +328,7 @@ void MainFrame::init_menubar()
         size_t tab_offset = 0;
         if (m_plater) {
 #if ENABLE_REMOVE_TABS_FROM_PLATER
-            append_menu_item(windowMenu, wxID_ANY, L("Plater Tab\tCtrl+1"), L("Show the plater"),
+            append_menu_item(windowMenu, wxID_HIGHEST + 1, L("Plater Tab\tCtrl+1"), L("Show the plater"),
                 [this](wxCommandEvent&) { select_tab(0); }, "application_view_tile.png");
 #else
             append_menu_item(windowMenu, wxID_ANY, L("Select Plater Tab\tCtrl+1"), L("Show the plater"),
@@ -338,22 +340,35 @@ void MainFrame::init_menubar()
             windowMenu->AppendSeparator();
         }
 #if ENABLE_REMOVE_TABS_FROM_PLATER
-        append_menu_item(windowMenu, wxID_ANY, L("Print Settings Tab\tCtrl+2"), L("Show the print settings"),
+        append_menu_item(windowMenu, wxID_HIGHEST + 2, L("Print Settings Tab\tCtrl+2"), L("Show the print settings"),
             [this, tab_offset](wxCommandEvent&) { select_tab(tab_offset + 0); }, "cog.png");
-        append_menu_item(windowMenu, wxID_ANY, L("Filament Settings Tab\tCtrl+3"), L("Show the filament settings"),
+        append_menu_item(windowMenu, wxID_HIGHEST + 3, L("Filament Settings Tab\tCtrl+3"), L("Show the filament settings"),
             [this, tab_offset](wxCommandEvent&) { select_tab(tab_offset + 1); }, "spool.png");
-        append_menu_item(windowMenu, wxID_ANY, L("Printer Settings Tab\tCtrl+4"), L("Show the printer settings"),
+        append_menu_item(windowMenu, wxID_HIGHEST + 4, L("Printer Settings Tab\tCtrl+4"), L("Show the printer settings"),
             [this, tab_offset](wxCommandEvent&) { select_tab(tab_offset + 2); }, "printer_empty.png");
         if (m_plater) {
             windowMenu->AppendSeparator();
-            wxMenuItem* item_3d = append_menu_item(windowMenu, wxID_ANY, L("3D\tCtrl+5"), L("Show the 3D editing view"),
-            [this](wxCommandEvent&) { m_plater->select_view_3D("3D"); }, "");
-            wxMenuItem* item_preview = append_menu_item(windowMenu, wxID_ANY, L("Preview\tCtrl+6"), L("Show the 3D slices preview"),
-            [this](wxCommandEvent&) { m_plater->select_view_3D("Preview"); }, "");
+            wxMenuItem* item_3d = append_menu_item(windowMenu, wxID_HIGHEST + 5, L("3D\tCtrl+5"), L("Show the 3D editing view"),
+                [this](wxCommandEvent&) { m_plater->select_view_3D("3D"); }, "");
+            wxMenuItem* item_preview = append_menu_item(windowMenu, wxID_HIGHEST + 6, L("Preview\tCtrl+6"), L("Show the 3D slices preview"),
+                [this](wxCommandEvent&) { m_plater->select_view_3D("Preview"); }, "");
 
             Bind(wxEVT_UPDATE_UI, [this](wxUpdateUIEvent& evt) { evt.Enable(can_change_view()); }, item_3d->GetId());
             Bind(wxEVT_UPDATE_UI, [this](wxUpdateUIEvent& evt) { evt.Enable(can_change_view()); }, item_preview->GetId());
         }
+
+#if _WIN32
+        // This is needed on Windows to fake the CTRL+# of the window menu when using the numpad
+        wxAcceleratorEntry entries[6];
+        entries[0].Set(wxACCEL_CTRL, WXK_NUMPAD1, wxID_HIGHEST + 1);
+        entries[1].Set(wxACCEL_CTRL, WXK_NUMPAD2, wxID_HIGHEST + 2);
+        entries[2].Set(wxACCEL_CTRL, WXK_NUMPAD3, wxID_HIGHEST + 3);
+        entries[3].Set(wxACCEL_CTRL, WXK_NUMPAD4, wxID_HIGHEST + 4);
+        entries[4].Set(wxACCEL_CTRL, WXK_NUMPAD5, wxID_HIGHEST + 5);
+        entries[5].Set(wxACCEL_CTRL, WXK_NUMPAD6, wxID_HIGHEST + 6);
+        wxAcceleratorTable accel(6, entries);
+        SetAcceleratorTable(accel);
+#endif // _WIN32
 #else
         append_menu_item(windowMenu, wxID_ANY, L("Select Print Settings Tab\tCtrl+2"), L("Show the print settings"),
             [this, tab_offset](wxCommandEvent&) { select_tab(tab_offset + 0); }, "cog.png");
@@ -362,6 +377,10 @@ void MainFrame::init_menubar()
         append_menu_item(windowMenu, wxID_ANY, L("Select Printer Settings Tab\tCtrl+4"), L("Show the printer settings"),
             [this, tab_offset](wxCommandEvent&) { select_tab(tab_offset + 2); }, "printer_empty.png");
 #endif // ENABLE_REMOVE_TABS_FROM_PLATER
+
+        windowMenu->AppendSeparator();
+        append_menu_item(windowMenu, wxID_ANY, L("Print Host Upload Queue"), L("Display the Print Host Upload Queue window"),
+            [this](wxCommandEvent&) { m_printhost_queue_dlg->ShowModal(); }, "arrow_up.png");
     }
 
     // View menu

src/slic3r/GUI/MainFrame.hpp

@@ -21,7 +21,9 @@ class ProgressStatusBar;
 
 namespace GUI
 {
+
 class Tab;
+class PrintHostQueueDialog;
 
 enum QuickSlice
 {
@@ -52,6 +54,8 @@ class MainFrame : public wxFrame
     wxMenuItem* m_menu_item_repeat { nullptr };
     wxMenuItem* m_menu_item_reslice_now { nullptr };
 
+    PrintHostQueueDialog *m_printhost_queue_dlg;
+
     std::string     get_base_name(const wxString full_name) const ;
     std::string     get_dir_name(const wxString full_name) const ;
 
@@ -93,6 +97,8 @@ public:
     void        select_tab(size_t tab) const;
     void        select_view(const std::string& direction);
 
+    PrintHostQueueDialog* printhost_queue_dlg() { return m_printhost_queue_dlg; }
+
     Plater*             m_plater { nullptr };
     wxNotebook*         m_tabpanel { nullptr };
     wxProgressDialog*   m_progress_dialog { nullptr };

src/slic3r/GUI/MsgDialog.cpp

@@ -6,6 +6,7 @@
 #include <wx/button.h>
 #include <wx/statbmp.h>
 #include <wx/scrolwin.h>
+#include <wx/clipbrd.h>
 
 #include "libslic3r/libslic3r.h"
 #include "libslic3r/Utils.hpp"
@@ -61,8 +62,11 @@ MsgDialog::~MsgDialog() {}
 
 // ErrorDialog
 
-ErrorDialog::ErrorDialog(wxWindow *parent, const wxString &msg) :
-	MsgDialog(parent, _(L("Slic3r error")), _(L("Slic3r has encountered an error")), wxBitmap(from_u8(Slic3r::var("Slic3r_192px_grayscale.png")), wxBITMAP_TYPE_PNG))
+ErrorDialog::ErrorDialog(wxWindow *parent, const wxString &msg)
+	: MsgDialog(parent, _(L("Slic3r error")), _(L("Slic3r has encountered an error")),
+		wxBitmap(from_u8(Slic3r::var("Slic3r_192px_grayscale.png")), wxBITMAP_TYPE_PNG),
+		wxID_NONE)
+	, msg(msg)
 {
 	auto *panel = new wxScrolledWindow(this);
 	auto *p_sizer = new wxBoxSizer(wxVERTICAL);
@@ -77,6 +81,20 @@ ErrorDialog::ErrorDialog(wxWindow *parent, const wxString &msg) :
 
 	content_sizer->Add(panel, 1, wxEXPAND);
 
+	auto *btn_copy = new wxButton(this, wxID_ANY, _(L("Copy to clipboard")));
+	btn_copy->Bind(wxEVT_BUTTON, [this](wxCommandEvent& event) {
+		if (wxTheClipboard->Open()) {
+			wxTheClipboard->SetData(new wxTextDataObject(this->msg));   // Note: the clipboard takes ownership of the pointer
+			wxTheClipboard->Close();
+		}
+	});
+
+	auto *btn_ok = new wxButton(this, wxID_OK);
+	btn_ok->SetFocus();
+
+	btn_sizer->Add(btn_copy, 0, wxRIGHT, HORIZ_SPACING);
+	btn_sizer->Add(btn_ok);
+
 	SetMaxSize(wxSize(-1, CONTENT_MAX_HEIGHT));
 	Fit();
 }

src/slic3r/GUI/MsgDialog.hpp

@@ -50,14 +50,18 @@ protected:
 
 
 // Generic error dialog, used for displaying exceptions
-struct ErrorDialog : MsgDialog
+class ErrorDialog : public MsgDialog
 {
+public:
 	ErrorDialog(wxWindow *parent, const wxString &msg);
 	ErrorDialog(ErrorDialog &&) = delete;
 	ErrorDialog(const ErrorDialog &) = delete;
 	ErrorDialog &operator=(ErrorDialog &&) = delete;
 	ErrorDialog &operator=(const ErrorDialog &) = delete;
 	virtual ~ErrorDialog();
+
+private:
+	wxString msg;
 };
 
 

src/slic3r/GUI/Plater.cpp

@@ -213,7 +213,7 @@ void SlicedInfo::SetTextAndShow(SlisedInfoIdx idx, const wxString& text, const w
 }
 
 PresetComboBox::PresetComboBox(wxWindow *parent, Preset::Type preset_type) :
-    wxBitmapComboBox(parent, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize, 0, nullptr, wxCB_READONLY),
+    wxBitmapComboBox(parent, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(200,-1), 0, nullptr, wxCB_READONLY),
     preset_type(preset_type),
     last_selected(wxNOT_FOUND)
 {
@@ -484,7 +484,7 @@ Sidebar::Sidebar(Plater *parent)
     : wxPanel(parent), p(new priv(parent))
 {
     p->scrolled = new wxScrolledWindow(this, wxID_ANY, wxDefaultPosition, wxSize(400, -1));
-    p->scrolled->SetScrollbars(0, 1, 1, 1);
+    p->scrolled->SetScrollbars(0, 20, 1, 2);
 
     // Sizer in the scrolled area
     auto *scrolled_sizer = new wxBoxSizer(wxVERTICAL);
@@ -732,8 +732,7 @@ void Sidebar::show_info_sizer()
     p->object_info->info_materials->SetLabel(wxString::Format("%d", static_cast<int>(model_object->materials_count())));
 
     auto& stats = model_object->volumes.front()->mesh.stl.stats;
-    auto sf = model_instance->get_scaling_factor();
-    p->object_info->info_volume->SetLabel(wxString::Format("%.2f", size(0) * size(1) * size(2) * sf(0) * sf(1) * sf(2)));
+    p->object_info->info_volume->SetLabel(wxString::Format("%.2f", size(0) * size(1) * size(2)));
     p->object_info->info_facets->SetLabel(wxString::Format(_(L("%d (%d shells)")), static_cast<int>(model_object->facets_count()), stats.number_of_parts));
 
     int errors = stats.degenerate_facets + stats.edges_fixed + stats.facets_removed +
@@ -913,7 +912,11 @@ struct Plater::priv
     Sidebar *sidebar;
 #if ENABLE_REMOVE_TABS_FROM_PLATER
     View3D* view3D;
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    GLToolbar view_toolbar;
+#else
     GLRadioToolbar view_toolbar;
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
 #else
 #if !ENABLE_IMGUI
     wxPanel *panel3d;
@@ -1030,6 +1033,7 @@ private:
     bool can_decrease_instances() const;
     bool can_split_to_objects() const;
     bool can_split_to_volumes() const;
+    bool can_split() const;
     bool layers_height_allowed() const;
     bool can_delete_all() const;
     bool can_arrange() const;
@@ -1068,6 +1072,9 @@ Plater::priv::priv(Plater *q, MainFrame *main_frame)
 #endif // !ENABLE_REMOVE_TABS_FROM_PLATER
     , delayed_scene_refresh(false)
     , project_filename(wxEmptyString)
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    , view_toolbar(GLToolbar::Radio)
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
 {
     arranging.store(false);
     rotoptimizing.store(false);
@@ -1179,7 +1186,8 @@ Plater::priv::priv(Plater *q, MainFrame *main_frame)
     view3D_canvas->Bind(EVT_GLCANVAS_MODEL_UPDATE, [this](SimpleEvent&) { this->schedule_background_process(); });
     view3D_canvas->Bind(EVT_GLCANVAS_REMOVE_OBJECT, [q](SimpleEvent&) { q->remove_selected(); });
     view3D_canvas->Bind(EVT_GLCANVAS_ARRANGE, [this](SimpleEvent&) { arrange(); });
-    view3D_canvas->Bind(EVT_GLCANVAS_INCREASE_INSTANCES, [q](Event<int> &evt) { evt.data == 1 ? q->increase_instances() : q->decrease_instances(); });
+    view3D_canvas->Bind(EVT_GLCANVAS_INCREASE_INSTANCES, [this](Event<int> &evt) 
+        { if (evt.data == 1) this->q->increase_instances(); else if (this->can_decrease_instances()) this->q->decrease_instances(); });
     view3D_canvas->Bind(EVT_GLCANVAS_INSTANCE_MOVED, [this](SimpleEvent&) { update(); });
     view3D_canvas->Bind(EVT_GLCANVAS_WIPETOWER_MOVED, &priv::on_wipetower_moved, this);
     view3D_canvas->Bind(EVT_GLCANVAS_ENABLE_ACTION_BUTTONS, [this](Event<bool> &evt) { this->sidebar->enable_buttons(evt.data); });
@@ -1205,7 +1213,8 @@ Plater::priv::priv(Plater *q, MainFrame *main_frame)
     canvas3Dwidget->Bind(EVT_GLCANVAS_MODEL_UPDATE, [this](SimpleEvent&) { this->schedule_background_process(); });
     canvas3Dwidget->Bind(EVT_GLCANVAS_REMOVE_OBJECT, [q](SimpleEvent&) { q->remove_selected(); });
     canvas3Dwidget->Bind(EVT_GLCANVAS_ARRANGE, [this](SimpleEvent&) { arrange(); });
-    canvas3Dwidget->Bind(EVT_GLCANVAS_INCREASE_INSTANCES, [q](Event<int> &evt) { evt.data == 1 ? q->increase_instances() : q->decrease_instances(); });
+	canvas3Dwidget->Bind(EVT_GLCANVAS_INCREASE_INSTANCES, [this](Event<int> &evt) 
+        { if (evt.data == 1) this->q->increase_instances(); else if (this->can_decrease_instances()) this->q->decrease_instances(); });
     canvas3Dwidget->Bind(EVT_GLCANVAS_INSTANCE_MOVED, [this](SimpleEvent&) { update(); });
     canvas3Dwidget->Bind(EVT_GLCANVAS_WIPETOWER_MOVED, &priv::on_wipetower_moved, this);
     canvas3Dwidget->Bind(EVT_GLCANVAS_ENABLE_ACTION_BUTTONS, [this](Event<bool> &evt) { this->sidebar->enable_buttons(evt.data); });
@@ -1286,7 +1295,9 @@ void Plater::priv::select_view_3D(const std::string& name)
     else if (name == "Preview")
         set_current_panel(preview);
 
+#if !ENABLE_TOOLBAR_BACKGROUND_TEXTURE
     view_toolbar.set_selection(name);
+#endif // !ENABLE_TOOLBAR_BACKGROUND_TEXTURE
 }
 #else
 void Plater::priv::select_view(const std::string& direction)
@@ -1485,7 +1496,7 @@ std::vector<size_t> Plater::priv::load_model_objects(const ModelObjectPtrs &mode
 #if !ENABLE_MODELVOLUME_TRANSFORM
     const Vec3d bed_center = Slic3r::to_3d(bed_shape.center().cast<double>(), 0.0);
 #endif // !ENABLE_MODELVOLUME_TRANSFORM
-    const Vec3d bed_size = Slic3r::to_3d(bed_shape.size().cast<double>(), 1.0);
+    const Vec3d bed_size = Slic3r::to_3d(bed_shape.size().cast<double>(), 1.0) - 2.0 * Vec3d::Ones();
 
     bool need_arrange = false;
     bool scaled_down = false;
@@ -1517,9 +1528,10 @@ std::vector<size_t> Plater::priv::load_model_objects(const ModelObjectPtrs &mode
         if (max_ratio > 10000) {
             // the size of the object is too big -> this could lead to overflow when moving to clipper coordinates,
             // so scale down the mesh
-            // const Vec3d inverse = ratio.cwiseInverse();
-            // object->scale(inverse);
-            object->scale(ratio.cwiseInverse());
+			double inv = 1. / max_ratio;
+            object->scale_mesh(Vec3d(inv, inv, inv));
+            object->origin_translation = Vec3d::Zero();
+            object->center_around_origin();
             scaled_down = true;
         } else if (max_ratio > 5) {
             const Vec3d inverse = ratio.cwiseInverse();
@@ -1644,8 +1656,8 @@ void Plater::priv::selection_changed()
     view3D->enable_toolbar_item("delete", can_delete_object());
     view3D->enable_toolbar_item("more", can_increase_instances());
     view3D->enable_toolbar_item("fewer", can_decrease_instances());
-    view3D->enable_toolbar_item("splitobjects", can_split_to_objects());
-    view3D->enable_toolbar_item("splitvolumes", can_split_to_volumes());
+    view3D->enable_toolbar_item("splitobjects", can_split/*_to_objects*/());
+    view3D->enable_toolbar_item("splitvolumes", can_split/*_to_volumes*/());
     view3D->enable_toolbar_item("layersediting", layers_height_allowed());
     // forces a frame render to update the view (to avoid a missed update if, for example, the context menu appears)
     view3D->render();
@@ -1653,8 +1665,8 @@ void Plater::priv::selection_changed()
     this->canvas3D->enable_toolbar_item("delete", can_delete_object());
     this->canvas3D->enable_toolbar_item("more", can_increase_instances());
     this->canvas3D->enable_toolbar_item("fewer", can_decrease_instances());
-    this->canvas3D->enable_toolbar_item("splitobjects", can_split_to_objects());
-    this->canvas3D->enable_toolbar_item("splitvolumes", can_split_to_volumes());
+    this->canvas3D->enable_toolbar_item("splitobjects", can_split/*_to_objects*/());
+    this->canvas3D->enable_toolbar_item("splitvolumes", can_split/*_to_volumes*/());
     this->canvas3D->enable_toolbar_item("layersediting", layers_height_allowed());
     // forces a frame render to update the view (to avoid a missed update if, for example, the context menu appears)
     this->canvas3D->render();
@@ -2446,8 +2458,8 @@ void Plater::priv::on_action_layersediting(SimpleEvent&)
 
 void Plater::priv::on_object_select(SimpleEvent& evt)
 {
-    selection_changed();
     wxGetApp().obj_list()->update_selections();
+    selection_changed();
 }
 
 void Plater::priv::on_viewport_changed(SimpleEvent& evt)
@@ -2597,9 +2609,9 @@ bool Plater::priv::complit_init_object_menu()
     // ui updates needs to be binded to the parent panel
     if (q != nullptr)
     {
-        q->Bind(wxEVT_UPDATE_UI, [this](wxUpdateUIEvent& evt) { evt.Enable(can_split_to_objects() || can_split_to_volumes()); }, item_split->GetId());
-        q->Bind(wxEVT_UPDATE_UI, [this](wxUpdateUIEvent& evt) { evt.Enable(can_split_to_objects()); }, item_split_objects->GetId());
-        q->Bind(wxEVT_UPDATE_UI, [this](wxUpdateUIEvent& evt) { evt.Enable(can_split_to_volumes()); }, item_split_volumes->GetId());
+        q->Bind(wxEVT_UPDATE_UI, [this](wxUpdateUIEvent& evt) { evt.Enable(can_split/*_to_objects() || can_split_to_volumes*/()); }, item_split->GetId());
+        q->Bind(wxEVT_UPDATE_UI, [this](wxUpdateUIEvent& evt) { evt.Enable(can_split/*_to_objects*/()); }, item_split_objects->GetId());
+        q->Bind(wxEVT_UPDATE_UI, [this](wxUpdateUIEvent& evt) { evt.Enable(can_split/*_to_volumes*/()); }, item_split_volumes->GetId());
     }
     return true;
 }
@@ -2618,7 +2630,7 @@ bool Plater::priv::complit_init_sla_object_menu()
     // ui updates needs to be binded to the parent panel
     if (q != nullptr)
     {
-        q->Bind(wxEVT_UPDATE_UI, [this](wxUpdateUIEvent& evt) { evt.Enable(can_split_to_objects()); }, item_split->GetId());
+        q->Bind(wxEVT_UPDATE_UI, [this](wxUpdateUIEvent& evt) { evt.Enable(can_split/*_to_objects*/()); }, item_split->GetId());
     }
 
     return true;
@@ -2637,7 +2649,7 @@ bool Plater::priv::complit_init_part_menu()
     // ui updates needs to be binded to the parent panel
     if (q != nullptr)
     {
-        q->Bind(wxEVT_UPDATE_UI, [this](wxUpdateUIEvent& evt) { evt.Enable(can_split_to_volumes()); },  item_split->GetId());
+        q->Bind(wxEVT_UPDATE_UI, [this](wxUpdateUIEvent& evt) { evt.Enable(can_split/*_to_volumes*/()); },  item_split->GetId());
     }
 
     return true;
@@ -2646,9 +2658,58 @@ bool Plater::priv::complit_init_part_menu()
 #if ENABLE_REMOVE_TABS_FROM_PLATER
 void Plater::priv::init_view_toolbar()
 {
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    ItemsIconsTexture::Metadata icons_data;
+    icons_data.filename = "view_toolbar.png";
+    icons_data.icon_size = 64;
+    icons_data.icon_border_size = 0;
+    icons_data.icon_gap_size = 0;
+
+    BackgroundTexture::Metadata background_data;
+    background_data.filename = "toolbar_background.png";
+    background_data.left = 16;
+    background_data.top = 16;
+    background_data.right = 16;
+    background_data.bottom = 16;
+
+    if (!view_toolbar.init(icons_data, background_data))
+#else
     if (!view_toolbar.init("view_toolbar.png", 64, 0, 0))
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
         return;
 
+#if ENABLE_TOOLBAR_BACKGROUND_TEXTURE
+    view_toolbar.set_layout_orientation(GLToolbar::Layout::Bottom);
+    view_toolbar.set_border(5.0f);
+    view_toolbar.set_gap_size(1.0f);
+
+    GLToolbarItem::Data item;
+
+    item.name = "3D";
+    item.tooltip = GUI::L_str("3D editor view");
+    item.sprite_id = 0;
+    item.action_event = EVT_GLVIEWTOOLBAR_3D;
+    item.is_toggable = false;
+    if (!view_toolbar.add_item(item))
+        return;
+
+    item.name = "Preview";
+    item.tooltip = GUI::L_str("Preview");
+    item.sprite_id = 1;
+    item.action_event = EVT_GLVIEWTOOLBAR_PREVIEW;
+    item.is_toggable = false;
+    if (!view_toolbar.add_item(item))
+        return;
+
+    view_toolbar.enable_item("3D");
+    view_toolbar.enable_item("Preview");
+
+    view_toolbar.select_item("3D");
+    view_toolbar.set_enabled(true);
+
+    view3D->set_view_toolbar(&view_toolbar);
+    preview->set_view_toolbar(&view_toolbar);
+#else
     GLRadioToolbarItem::Data item;
 
     item.name = "3D";
@@ -2669,6 +2730,7 @@ void Plater::priv::init_view_toolbar()
     preview->set_view_toolbar(&view_toolbar);
 
     view_toolbar.set_selection("3D");
+#endif // ENABLE_TOOLBAR_BACKGROUND_TEXTURE
 }
 #endif // ENABLE_REMOVE_TABS_FROM_PLATER
 
@@ -2705,6 +2767,13 @@ bool Plater::priv::can_split_to_volumes() const
     return sidebar->obj_list()->is_splittable();
 }
 
+bool Plater::priv::can_split() const
+{
+    if (printer_technology == ptSLA)
+        return false;
+    return sidebar->obj_list()->is_splittable();
+}
+
 bool Plater::priv::layers_height_allowed() const
 {
     int obj_idx = get_selected_object_idx();
@@ -3086,7 +3155,7 @@ void Plater::send_gcode()
     }
     default_output_file = fs::path(Slic3r::fold_utf8_to_ascii(default_output_file.string()));
 
-    Slic3r::PrintHostSendDialog dlg(default_output_file);
+    PrintHostSendDialog dlg(default_output_file);
     if (dlg.ShowModal() == wxID_OK) {
         upload_job.upload_data.upload_path = dlg.filename();
         upload_job.upload_data.start_print = dlg.start_print();
@@ -3178,6 +3247,8 @@ void Plater::on_config_change(const DynamicPrintConfig &config)
 #endif // ENABLE_REMOVE_TABS_FROM_PLATER
             if (p->preview) p->preview->set_bed_shape(p->config->option<ConfigOptionPoints>("bed_shape")->values);
             update_scheduled = true;
+        } else if (opt_key == "host_type" && this->p->printer_technology == ptSLA) {
+            p->config->option<ConfigOptionEnum<PrintHostType>>(opt_key)->value = htSL1;
         }
     }
 

src/slic3r/GUI/Preset.cpp

@@ -366,7 +366,8 @@ const std::vector<std::string>& Preset::printer_options()
             "host_type", "print_host", "printhost_apikey", "printhost_cafile",
             "single_extruder_multi_material", "start_gcode", "end_gcode", "before_layer_gcode", "layer_gcode", "toolchange_gcode",
             "between_objects_gcode", "printer_vendor", "printer_model", "printer_variant", "printer_notes", "cooling_tube_retraction",
-            "cooling_tube_length", "parking_pos_retraction", "extra_loading_move", "max_print_height", "default_print_profile", "inherits",
+            "cooling_tube_length", "high_current_on_filament_swap", "parking_pos_retraction", "extra_loading_move", "max_print_height", 
+            "default_print_profile", "inherits",
             "remaining_times", "silent_mode", "machine_max_acceleration_extruding", "machine_max_acceleration_retracting",
 			"machine_max_acceleration_x", "machine_max_acceleration_y", "machine_max_acceleration_z", "machine_max_acceleration_e",
         	"machine_max_feedrate_x", "machine_max_feedrate_y", "machine_max_feedrate_z", "machine_max_feedrate_e",
@@ -455,6 +456,7 @@ const std::vector<std::string>& Preset::sla_printer_options()
             "display_width", "display_height", "display_pixels_x", "display_pixels_y",
             "display_orientation",
             "printer_correction",
+            "print_host", "printhost_apikey", "printhost_cafile",
             "printer_notes",
             "inherits"
         };

src/slic3r/GUI/PrintHostDialogs.cpp

@@ -1,20 +1,28 @@
 #include "PrintHostDialogs.hpp"
 
+#include <algorithm>
+
 #include <wx/frame.h>
-#include <wx/event.h>
 #include <wx/progdlg.h>
 #include <wx/sizer.h>
 #include <wx/stattext.h>
 #include <wx/textctrl.h>
 #include <wx/checkbox.h>
+#include <wx/button.h>
+#include <wx/dataview.h>
+#include <wx/wupdlock.h>
+#include <wx/debug.h>
 
-#include "slic3r/GUI/GUI.hpp"
-#include "slic3r/GUI/MsgDialog.hpp"
-#include "slic3r/GUI/I18N.hpp"
+#include "GUI.hpp"
+#include "MsgDialog.hpp"
+#include "I18N.hpp"
+#include "../Utils/PrintHost.hpp"
 
 namespace fs = boost::filesystem;
 
 namespace Slic3r {
+namespace GUI {
+
 
 PrintHostSendDialog::PrintHostSendDialog(const fs::path &path)
     : MsgDialog(nullptr, _(L("Send G-Code to printer host")), _(L("Upload to Printer Host with the following filename:")), wxID_NONE)
@@ -45,5 +53,95 @@ fs::path PrintHostSendDialog::filename() const
 
 bool PrintHostSendDialog::start_print() const
 {
-    return box_print->GetValue(); }
+    return box_print->GetValue();
 }
+
+
+
+wxDEFINE_EVENT(EVT_PRINTHOST_PROGRESS, PrintHostQueueDialog::Event);
+wxDEFINE_EVENT(EVT_PRINTHOST_ERROR, PrintHostQueueDialog::Event);
+
+PrintHostQueueDialog::Event::Event(wxEventType eventType, int winid, size_t job_id)
+    : wxEvent(winid, eventType)
+    , job_id(job_id)
+{}
+
+PrintHostQueueDialog::Event::Event(wxEventType eventType, int winid, size_t job_id, int progress)
+    : wxEvent(winid, eventType)
+    , job_id(job_id)
+    , progress(progress)
+{}
+
+PrintHostQueueDialog::Event::Event(wxEventType eventType, int winid, size_t job_id, wxString error)
+    : wxEvent(winid, eventType)
+    , job_id(job_id)
+    , error(std::move(error))
+{}
+
+wxEvent *PrintHostQueueDialog::Event::Clone() const
+{
+    return new Event(*this);
+}
+
+PrintHostQueueDialog::PrintHostQueueDialog(wxWindow *parent)
+    : wxDialog(parent, wxID_ANY, _(L("Print host upload queue")), wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER)
+    , on_progress_evt(this, EVT_PRINTHOST_PROGRESS, &PrintHostQueueDialog::on_progress, this)
+    , on_error_evt(this, EVT_PRINTHOST_ERROR, &PrintHostQueueDialog::on_error, this)
+{
+    enum { HEIGHT = 800, WIDTH = 400, SPACING = 5 };
+
+    SetMinSize(wxSize(HEIGHT, WIDTH));
+
+    auto *topsizer = new wxBoxSizer(wxVERTICAL);
+
+    job_list = new wxDataViewListCtrl(this, wxID_ANY);
+    job_list->AppendTextColumn("ID", wxDATAVIEW_CELL_INERT);
+    job_list->AppendProgressColumn("Progress", wxDATAVIEW_CELL_INERT);
+    job_list->AppendTextColumn("Status", wxDATAVIEW_CELL_INERT);
+    job_list->AppendTextColumn("Host", wxDATAVIEW_CELL_INERT);
+    job_list->AppendTextColumn("Filename", wxDATAVIEW_CELL_INERT);
+
+    auto *btnsizer = new wxBoxSizer(wxHORIZONTAL);
+    auto *btn_cancel = new wxButton(this, wxID_DELETE, _(L("Cancel selected")));
+    auto *btn_close = new wxButton(this, wxID_CANCEL, _(L("Close")));
+    btnsizer->Add(btn_cancel, 0, wxRIGHT, SPACING);
+    btnsizer->AddStretchSpacer();
+    btnsizer->Add(btn_close);
+
+    topsizer->Add(job_list, 1, wxEXPAND | wxBOTTOM, SPACING);
+    topsizer->Add(btnsizer, 0, wxEXPAND);
+    SetSizer(topsizer);
+}
+
+void PrintHostQueueDialog::append_job(const PrintHostJob &job)
+{
+    wxCHECK_RET(!job.empty(), "PrintHostQueueDialog: Attempt to append an empty job");
+
+    wxVector<wxVariant> fields;
+    fields.push_back(wxVariant(wxString::Format("%d", job_list->GetItemCount() + 1)));
+    fields.push_back(wxVariant(0));
+    fields.push_back(wxVariant(_(L("Enqueued"))));
+    fields.push_back(wxVariant(job.printhost->get_host()));
+    fields.push_back(wxVariant(job.upload_data.upload_path.string()));
+    job_list->AppendItem(fields);
+}
+
+void PrintHostQueueDialog::on_progress(Event &evt)
+{
+    wxCHECK_RET(evt.job_id < job_list->GetItemCount(), "Out of bounds access to job list");
+
+    const wxVariant status(evt.progress < 100 ? _(L("Uploading")) : _(L("Complete")));
+
+    job_list->SetValue(wxVariant(evt.progress), evt.job_id, 1);
+    job_list->SetValue(status, evt.job_id, 2);
+}
+
+void PrintHostQueueDialog::on_error(Event &evt)
+{
+    wxCHECK_RET(evt.job_id < job_list->GetItemCount(), "Out of bounds access to job list");
+
+    // TODO
+}
+
+
+}}

src/slic3r/GUI/PrintHostDialogs.hpp

@@ -2,24 +2,27 @@
 #define slic3r_PrintHostSendDialog_hpp_
 
 #include <string>
-
 #include <boost/filesystem/path.hpp>
 
 #include <wx/string.h>
-#include <wx/frame.h>
 #include <wx/event.h>
-#include <wx/progdlg.h>
-#include <wx/sizer.h>
-#include <wx/stattext.h>
-#include <wx/textctrl.h>
-#include <wx/checkbox.h>
+#include <wx/dialog.h>
 
-#include "slic3r/GUI/GUI.hpp"
-#include "slic3r/GUI/MsgDialog.hpp"
+#include "GUI.hpp"
+#include "GUI_Utils.hpp"
+#include "MsgDialog.hpp"
+#include "../Utils/PrintHost.hpp"
 
+class wxTextCtrl;
+class wxCheckBox;
+class wxDataViewListCtrl;
 
 namespace Slic3r {
 
+struct PrintHostJob;
+
+namespace GUI {
+
 
 class PrintHostSendDialog : public GUI::MsgDialog
 {
@@ -38,12 +41,38 @@ private:
 class PrintHostQueueDialog : public wxDialog
 {
 public:
-    PrintHostQueueDialog();
+    class Event : public wxEvent
+    {
+    public:
+        size_t job_id;
+        int progress = 0;    // in percent
+        wxString error;
 
+        Event(wxEventType eventType, int winid, size_t job_id);
+        Event(wxEventType eventType, int winid, size_t job_id, int progress);
+        Event(wxEventType eventType, int winid, size_t job_id, wxString error);
+
+        virtual wxEvent *Clone() const;
+    };
+
+
+    PrintHostQueueDialog(wxWindow *parent);
+
+    void append_job(const PrintHostJob &job);
 private:
+    wxDataViewListCtrl *job_list;
+    // Note: EventGuard prevents delivery of progress evts to a freed PrintHostQueueDialog
+    EventGuard on_progress_evt;
+    EventGuard on_error_evt;
+
+    void on_progress(Event&);
+    void on_error(Event&);
 };
 
+wxDECLARE_EVENT(EVT_PRINTHOST_PROGRESS, PrintHostQueueDialog::Event);
+wxDECLARE_EVENT(EVT_PRINTHOST_ERROR, PrintHostQueueDialog::Event);
 
-}
+
+}}
 
 #endif

src/slic3r/GUI/Tab.cpp

@@ -270,7 +270,7 @@ Slic3r::GUI::PageShp Tab::add_options_page(const wxString& title, const std::str
 	auto panel = this;
 #endif
 	PageShp page(new Page(panel, title, icon_idx));
-	page->SetScrollbars(1, 1, 1, 2);
+	page->SetScrollbars(1, 20, 1, 2);
 	page->Hide();
 	m_hsizer->Add(page.get(), 1, wxEXPAND | wxLEFT, 5);
 
@@ -1538,6 +1538,108 @@ bool Tab::current_preset_is_dirty()
 	return m_presets->current_is_dirty();
 }
 
+void TabPrinter::build_printhost(ConfigOptionsGroup *optgroup)
+{
+	const bool sla = m_presets->get_selected_preset().printer_technology() == ptSLA;
+
+	// Only offer the host type selection for FFF, for SLA it's always the SL1 printer (at the moment)
+	if (! sla) {
+		optgroup->append_single_option_line("host_type");
+	} else {
+		m_config->option<ConfigOptionEnum<PrintHostType>>("host_type", true)->value = htSL1;
+	}
+
+	auto printhost_browse = [this, optgroup] (wxWindow* parent) {
+
+		// TODO: SLA
+
+		auto btn = m_printhost_browse_btn = new wxButton(parent, wxID_ANY, _(L(" Browse "))+dots, wxDefaultPosition, wxDefaultSize, wxBU_LEFT);
+		btn->SetBitmap(wxBitmap(from_u8(Slic3r::var("zoom.png")), wxBITMAP_TYPE_PNG));
+		auto sizer = new wxBoxSizer(wxHORIZONTAL);
+		sizer->Add(btn);
+
+		btn->Bind(wxEVT_BUTTON, [this, parent, optgroup](wxCommandEvent e) {
+			BonjourDialog dialog(parent);
+			if (dialog.show_and_lookup()) {
+				optgroup->set_value("print_host", std::move(dialog.get_selected()), true);
+			}
+		});
+
+		return sizer;
+	};
+
+	auto print_host_test = [this](wxWindow* parent) {
+		auto btn = m_print_host_test_btn = new wxButton(parent, wxID_ANY, _(L("Test")), 
+			wxDefaultPosition, wxDefaultSize, wxBU_LEFT | wxBU_EXACTFIT);
+		btn->SetBitmap(wxBitmap(from_u8(Slic3r::var("wrench.png")), wxBITMAP_TYPE_PNG));
+		auto sizer = new wxBoxSizer(wxHORIZONTAL);
+		sizer->Add(btn);
+
+		btn->Bind(wxEVT_BUTTON, [this](wxCommandEvent e) {
+			std::unique_ptr<PrintHost> host(PrintHost::get_print_host(m_config));
+			if (! host) {
+				const auto text = wxString::Format("%s",
+					_(L("Could not get a valid Printer Host reference")));
+				show_error(this, text);
+				return;
+			}
+			wxString msg;
+			if (host->test(msg)) {
+				show_info(this, host->get_test_ok_msg(), _(L("Success!")));
+			} else {
+				show_error(this, host->get_test_failed_msg(msg));
+			}
+		});
+
+		return sizer;
+	};
+
+	Line host_line = optgroup->create_single_option_line("print_host");
+	host_line.append_widget(printhost_browse);
+	host_line.append_widget(print_host_test);
+	optgroup->append_line(host_line);
+	optgroup->append_single_option_line("printhost_apikey");
+
+	if (Http::ca_file_supported()) {
+
+		Line cafile_line = optgroup->create_single_option_line("printhost_cafile");
+
+		auto printhost_cafile_browse = [this, optgroup] (wxWindow* parent) {
+			auto btn = new wxButton(parent, wxID_ANY, _(L(" Browse "))+dots, wxDefaultPosition, wxDefaultSize, wxBU_LEFT);
+			btn->SetBitmap(wxBitmap(from_u8(Slic3r::var("zoom.png")), wxBITMAP_TYPE_PNG));
+			auto sizer = new wxBoxSizer(wxHORIZONTAL);
+			sizer->Add(btn);
+
+			btn->Bind(wxEVT_BUTTON, [this, optgroup] (wxCommandEvent e) {
+				static const auto filemasks = _(L("Certificate files (*.crt, *.pem)|*.crt;*.pem|All files|*.*"));
+				wxFileDialog openFileDialog(this, _(L("Open CA certificate file")), "", "", filemasks, wxFD_OPEN | wxFD_FILE_MUST_EXIST);
+				if (openFileDialog.ShowModal() != wxID_CANCEL) {
+					optgroup->set_value("printhost_cafile", std::move(openFileDialog.GetPath()), true);
+				}
+			});
+
+			return sizer;
+		};
+
+		cafile_line.append_widget(printhost_cafile_browse);
+		optgroup->append_line(cafile_line);
+
+		auto printhost_cafile_hint = [this, optgroup] (wxWindow* parent) {
+			auto txt = new wxStaticText(parent, wxID_ANY, 
+				_(L("HTTPS CA file is optional. It is only needed if you use HTTPS with a self-signed certificate.")));
+			auto sizer = new wxBoxSizer(wxHORIZONTAL);
+			sizer->Add(txt);
+			return sizer;
+		};
+
+		Line cafile_hint { "", "" };
+		cafile_hint.full_width = 1;
+		cafile_hint.widget = std::move(printhost_cafile_hint);
+		optgroup->append_line(cafile_hint);
+
+	}
+}
+
 void TabPrinter::build()
 {
 	m_presets = &m_preset_bundle->printers;
@@ -1665,96 +1767,8 @@ void TabPrinter::build_fff()
 		}
 #endif
 
-		optgroup = page->new_optgroup(_(L("Printer Host upload")));
-
-		optgroup->append_single_option_line("host_type");
-
-		auto printhost_browse = [this, optgroup] (wxWindow* parent) {
-			auto btn = m_printhost_browse_btn = new wxButton(parent, wxID_ANY, _(L(" Browse "))+dots, wxDefaultPosition, wxDefaultSize, wxBU_LEFT);
-			btn->SetBitmap(wxBitmap(from_u8(Slic3r::var("zoom.png")), wxBITMAP_TYPE_PNG));
-			auto sizer = new wxBoxSizer(wxHORIZONTAL);
-			sizer->Add(btn);
-
-			btn->Bind(wxEVT_BUTTON, [this, parent, optgroup](wxCommandEvent e) {
-				BonjourDialog dialog(parent);
-				if (dialog.show_and_lookup()) {
-					optgroup->set_value("print_host", std::move(dialog.get_selected()), true);
-				}
-			});
-
-			return sizer;
-		};
-
-		auto print_host_test = [this](wxWindow* parent) {
-			auto btn = m_print_host_test_btn = new wxButton(parent, wxID_ANY, _(L("Test")), 
-				wxDefaultPosition, wxDefaultSize, wxBU_LEFT | wxBU_EXACTFIT);
-			btn->SetBitmap(wxBitmap(from_u8(Slic3r::var("wrench.png")), wxBITMAP_TYPE_PNG));
-			auto sizer = new wxBoxSizer(wxHORIZONTAL);
-			sizer->Add(btn);
-
-			btn->Bind(wxEVT_BUTTON, [this](wxCommandEvent e) {
-				std::unique_ptr<PrintHost> host(PrintHost::get_print_host(m_config));
-				if (! host) {
-					const auto text = wxString::Format("%s",
-						_(L("Could not get a valid Printer Host reference")));
-					show_error(this, text);
-					return;
-				}
-				wxString msg;
-				if (host->test(msg)) {
-					show_info(this, host->get_test_ok_msg(), _(L("Success!")));
-				} else {
-					show_error(this, host->get_test_failed_msg(msg));
-				}
-			});
-
-			return sizer;
-		};
-
-		Line host_line = optgroup->create_single_option_line("print_host");
-		host_line.append_widget(printhost_browse);
-		host_line.append_widget(print_host_test);
-		optgroup->append_line(host_line);
-		optgroup->append_single_option_line("printhost_apikey");
-
-		if (Http::ca_file_supported()) {
-
-			Line cafile_line = optgroup->create_single_option_line("printhost_cafile");
-
-			auto printhost_cafile_browse = [this, optgroup] (wxWindow* parent) {
-				auto btn = new wxButton(parent, wxID_ANY, _(L(" Browse "))+dots, wxDefaultPosition, wxDefaultSize, wxBU_LEFT);
-				btn->SetBitmap(wxBitmap(from_u8(Slic3r::var("zoom.png")), wxBITMAP_TYPE_PNG));
-				auto sizer = new wxBoxSizer(wxHORIZONTAL);
-				sizer->Add(btn);
-
-				btn->Bind(wxEVT_BUTTON, [this, optgroup] (wxCommandEvent e) {
-					static const auto filemasks = _(L("Certificate files (*.crt, *.pem)|*.crt;*.pem|All files|*.*"));
-					wxFileDialog openFileDialog(this, _(L("Open CA certificate file")), "", "", filemasks, wxFD_OPEN | wxFD_FILE_MUST_EXIST);
-					if (openFileDialog.ShowModal() != wxID_CANCEL) {
-						optgroup->set_value("printhost_cafile", std::move(openFileDialog.GetPath()), true);
-					}
-				});
-
-				return sizer;
-			};
-
-			cafile_line.append_widget(printhost_cafile_browse);
-			optgroup->append_line(cafile_line);
-
-			auto printhost_cafile_hint = [this, optgroup] (wxWindow* parent) {
-				auto txt = new wxStaticText(parent, wxID_ANY, 
-					_(L("HTTPS CA file is optional. It is only needed if you use HTTPS with a self-signed certificate.")));
-				auto sizer = new wxBoxSizer(wxHORIZONTAL);
-				sizer->Add(txt);
-				return sizer;
-			};
-
-			Line cafile_hint { "", "" };
-			cafile_hint.full_width = 1;
-			cafile_hint.widget = std::move(printhost_cafile_hint);
-			optgroup->append_line(cafile_hint);
-
-		}
+		optgroup = page->new_optgroup(_(L("Print Host upload")));
+		build_printhost(optgroup.get());
 
 		optgroup = page->new_optgroup(_(L("Firmware")));
 		optgroup->append_single_option_line("gcode_flavor");
@@ -1897,6 +1911,9 @@ void TabPrinter::build_sla()
     }
     optgroup->append_line(line);
 
+    optgroup = page->new_optgroup(_(L("Print Host upload")));
+    build_printhost(optgroup.get());
+
     page = add_options_page(_(L("Notes")), "note.png");
     optgroup = page->new_optgroup(_(L("Notes")), 0);
     option = optgroup->get_option("printer_notes");
@@ -2041,6 +2058,7 @@ void TabPrinter::build_extruder_pages()
 		optgroup->append_single_option_line("cooling_tube_length");
 		optgroup->append_single_option_line("parking_pos_retraction");
         optgroup->append_single_option_line("extra_loading_move");
+        optgroup->append_single_option_line("high_current_on_filament_swap");
 		m_pages.insert(m_pages.end() - n_after_single_extruder_MM, page);
 		m_has_single_extruder_MM_page = true;
 	}

src/slic3r/GUI/Tab.hpp

@@ -325,6 +325,8 @@ class TabPrinter : public Tab
 
     std::vector<PageShp>			m_pages_fff;
     std::vector<PageShp>			m_pages_sla;
+
+    void build_printhost(ConfigOptionsGroup *optgroup);
 public:
 	wxButton*	m_serial_test_btn = nullptr;
 	wxButton*	m_print_host_test_btn = nullptr;

src/slic3r/GUI/wxExtensions.cpp

@@ -953,6 +953,44 @@ void PrusaObjectDataViewModel::GetItemInfo(const wxDataViewItem& item, ItemType&
         type = itUndef;
 }
 
+int PrusaObjectDataViewModel::GetRowByItem(const wxDataViewItem& item) const
+{
+    if (m_objects.empty())
+        return -1;
+
+    int row_num = 0;
+    
+    for (int i = 0; i < m_objects.size(); i++)
+    {
+        row_num++;
+        if (item == wxDataViewItem(m_objects[i]))
+            return row_num;
+
+        for (int j = 0; j < m_objects[i]->GetChildCount(); j++)
+        {
+            row_num++;
+            PrusaObjectDataViewModelNode* cur_node = m_objects[i]->GetNthChild(j);
+            if (item == wxDataViewItem(cur_node))
+                return row_num;
+
+            if (cur_node->m_type == itVolume && cur_node->GetChildCount() == 1)
+                row_num++;
+            if (cur_node->m_type == itInstanceRoot)
+            {
+                row_num++;
+                for (int t = 0; t < cur_node->GetChildCount(); t++)
+                {
+                    row_num++;
+                    if (item == wxDataViewItem(cur_node->GetNthChild(t)))
+                        return row_num;
+                }
+            }
+        }        
+    }
+
+    return -1;
+}
+
 wxString PrusaObjectDataViewModel::GetName(const wxDataViewItem &item) const
 {
 	PrusaObjectDataViewModelNode *node = (PrusaObjectDataViewModelNode*)item.GetID();
@@ -1240,6 +1278,16 @@ IMPLEMENT_VARIANT_OBJECT(PrusaDataViewBitmapText)
 // PrusaIconTextRenderer
 // ---------------------------------------------------------
 
+#if ENABLE_NONCUSTOM_DATA_VIEW_RENDERING
+PrusaBitmapTextRenderer::PrusaBitmapTextRenderer(wxDataViewCellMode mode /*= wxDATAVIEW_CELL_EDITABLE*/, 
+                                                 int align /*= wxDVR_DEFAULT_ALIGNMENT*/): 
+wxDataViewRenderer(wxT("PrusaDataViewBitmapText"), mode, align)
+{
+    SetMode(mode);
+    SetAlignment(align);
+}
+#endif // ENABLE_NONCUSTOM_DATA_VIEW_RENDERING
+
 bool PrusaBitmapTextRenderer::SetValue(const wxVariant &value)
 {
     m_value << value;
@@ -1251,6 +1299,13 @@ bool PrusaBitmapTextRenderer::GetValue(wxVariant& WXUNUSED(value)) const
     return false;
 }
 
+#if ENABLE_NONCUSTOM_DATA_VIEW_RENDERING && wxUSE_ACCESSIBILITY
+wxString PrusaBitmapTextRenderer::GetAccessibleDescription() const
+{
+    return m_value.GetText();
+}
+#endif // wxUSE_ACCESSIBILITY && ENABLE_NONCUSTOM_DATA_VIEW_RENDERING
+
 bool PrusaBitmapTextRenderer::Render(wxRect rect, wxDC *dc, int state)
 {
     int xoffset = 0;
@@ -1291,12 +1346,12 @@ wxWindow* PrusaBitmapTextRenderer::CreateEditorCtrl(wxWindow* parent, wxRect lab
 
     PrusaDataViewBitmapText data;
     data << value;
-    m_bmp_from_editing_item = data.GetBitmap();
+
     m_was_unusable_symbol = false;
 
     wxPoint position = labelRect.GetPosition();
-    if (m_bmp_from_editing_item.IsOk()) {
-        const int bmp_width = m_bmp_from_editing_item.GetWidth();
+    if (data.GetBitmap().IsOk()) {
+        const int bmp_width = data.GetBitmap().GetWidth();
         position.x += bmp_width;
         labelRect.SetWidth(labelRect.GetWidth() - bmp_width);
     }
@@ -1304,6 +1359,7 @@ wxWindow* PrusaBitmapTextRenderer::CreateEditorCtrl(wxWindow* parent, wxRect lab
     wxTextCtrl* text_editor = new wxTextCtrl(parent, wxID_ANY, data.GetText(),
                                              position, labelRect.GetSize(), wxTE_PROCESS_ENTER);
     text_editor->SetInsertionPointEnd();
+    text_editor->SelectAll();
 
     return text_editor;
 }
@@ -1323,7 +1379,17 @@ bool PrusaBitmapTextRenderer::GetValueFromEditorCtrl(wxWindow* ctrl, wxVariant&
         }
     }
 
-    value << PrusaDataViewBitmapText(text_editor->GetValue(), m_bmp_from_editing_item);
+    // The icon can't be edited so get its old value and reuse it.
+    wxVariant valueOld;
+    GetView()->GetModel()->GetValue(valueOld, m_item, 0); 
+    
+    PrusaDataViewBitmapText bmpText;
+    bmpText << valueOld;
+
+    // But replace the text with the value entered by user.
+    bmpText.SetText(text_editor->GetValue());
+
+    value << bmpText;
     return true;
 }
 

src/slic3r/GUI/wxExtensions.hpp

@@ -463,6 +463,7 @@ public:
     int GetVolumeIdByItem(const wxDataViewItem& item) const;
     int GetInstanceIdByItem(const wxDataViewItem& item) const;
     void GetItemInfo(const wxDataViewItem& item, ItemType& type, int& obj_idx, int& idx);
+    int GetRowByItem(const wxDataViewItem& item) const;
     bool IsEmpty() { return m_objects.empty(); }
 
 	// helper method for wxLog
@@ -518,21 +519,44 @@ public:
 // ----------------------------------------------------------------------------
 // PrusaBitmapTextRenderer
 // ----------------------------------------------------------------------------
-
+#if ENABLE_NONCUSTOM_DATA_VIEW_RENDERING
+class PrusaBitmapTextRenderer : public wxDataViewRenderer
+#else
 class PrusaBitmapTextRenderer : public wxDataViewCustomRenderer
+#endif //ENABLE_NONCUSTOM_DATA_VIEW_RENDERING
 {
 public:
-    PrusaBitmapTextRenderer(  wxDataViewCellMode mode = wxDATAVIEW_CELL_EDITABLE,
-                            int align = wxDVR_DEFAULT_ALIGNMENT): 
-                            wxDataViewCustomRenderer(wxT("PrusaDataViewBitmapText"), mode, align) {}
+    PrusaBitmapTextRenderer(wxDataViewCellMode mode =
+#ifdef __WXOSX__
+                                                        wxDATAVIEW_CELL_INERT
+#else
+                                                        wxDATAVIEW_CELL_EDITABLE
+#endif
+
+                            ,int align = wxDVR_DEFAULT_ALIGNMENT
+#if ENABLE_NONCUSTOM_DATA_VIEW_RENDERING
+                            );
+#else
+                            ) : wxDataViewCustomRenderer(wxT("PrusaDataViewBitmapText"), mode, align) {}
+#endif //ENABLE_NONCUSTOM_DATA_VIEW_RENDERING
 
     bool SetValue(const wxVariant &value);
     bool GetValue(wxVariant &value) const;
+#if ENABLE_NONCUSTOM_DATA_VIEW_RENDERING && wxUSE_ACCESSIBILITY
+    virtual wxString GetAccessibleDescription() const override;
+#endif // wxUSE_ACCESSIBILITY && ENABLE_NONCUSTOM_DATA_VIEW_RENDERING
 
     virtual bool Render(wxRect cell, wxDC *dc, int state);
     virtual wxSize GetSize() const;
 
-    bool        HasEditorCtrl() const override { return true; }
+    bool        HasEditorCtrl() const override
+    {
+#ifdef __WXOSX__
+        return false;
+#else
+        return true;
+#endif        
+    }
     wxWindow*   CreateEditorCtrl(wxWindow* parent, 
                                  wxRect labelRect, 
                                  const wxVariant& value) override;
@@ -542,8 +566,7 @@ public:
 
 private:
     PrusaDataViewBitmapText m_value;
-    wxBitmap                m_bmp_from_editing_item;
-    bool                    m_was_unusable_symbol;
+    bool                    m_was_unusable_symbol {false};
 };
 
 

src/slic3r/Utils/Duet.cpp

@@ -20,7 +20,6 @@
 #include "slic3r/GUI/GUI.hpp"
 #include "slic3r/GUI/I18N.hpp"
 #include "slic3r/GUI/MsgDialog.hpp"
-#include "slic3r/GUI/PrintHostDialogs.hpp"   // XXX
 #include "Http.hpp"
 
 namespace fs = boost::filesystem;
@@ -55,89 +54,90 @@ wxString Duet::get_test_failed_msg (wxString &msg) const
 	return wxString::Format("%s: %s", _(L("Could not connect to Duet")), msg);
 }
 
-bool Duet::send_gcode(const std::string &filename) const
-{
-	enum { PROGRESS_RANGE = 1000 };
-
-	const auto errortitle = _(L("Error while uploading to the Duet"));
-	fs::path filepath(filename);
-
-	PrintHostSendDialog send_dialog(filepath.filename());
-	if (send_dialog.ShowModal() != wxID_OK) { return false; }
-
-	const bool print = send_dialog.start_print();
-	const auto upload_filepath = send_dialog.filename();
-	const auto upload_filename = upload_filepath.filename();
-	const auto upload_parent_path = upload_filepath.parent_path();
-
-	wxProgressDialog progress_dialog(
-	 	_(L("Duet upload")),
-	 	_(L("Sending G-code file to Duet...")),
-		PROGRESS_RANGE, nullptr, wxPD_AUTO_HIDE | wxPD_APP_MODAL | wxPD_CAN_ABORT);
-	progress_dialog.Pulse();
-
-	wxString connect_msg;
-	if (!connect(connect_msg)) {
-		auto errormsg = wxString::Format("%s: %s", errortitle, connect_msg);
-		GUI::show_error(&progress_dialog, std::move(errormsg));
-		return false;
-	}
-
-	bool res = true;
-
-	auto upload_cmd = get_upload_url(upload_filepath.string());
-	BOOST_LOG_TRIVIAL(info) << boost::format("Duet: Uploading file %1%, filename: %2%, path: %3%, print: %4%, command: %5%")
-		% filepath.string()
-		% upload_filename.string()
-		% upload_parent_path.string()
-		% print
-		% upload_cmd;
-
-	auto http = Http::post(std::move(upload_cmd));
-	http.set_post_body(filename)
-		.on_complete([&](std::string body, unsigned status) {
-			BOOST_LOG_TRIVIAL(debug) << boost::format("Duet: File uploaded: HTTP %1%: %2%") % status % body;
-			progress_dialog.Update(PROGRESS_RANGE);
-
-			int err_code = get_err_code_from_body(body);
-			if (err_code != 0) {
-				auto msg = format_error(body, L("Unknown error occured"), 0);
-				GUI::show_error(&progress_dialog, std::move(msg));
-				res = false;
-			} else if (print) {
-				wxString errormsg;
-				res = start_print(errormsg, upload_filepath.string());
-				if (!res) {
-					GUI::show_error(&progress_dialog, std::move(errormsg));
-				}
-			}
-		})
-		.on_error([&](std::string body, std::string error, unsigned status) {
-			BOOST_LOG_TRIVIAL(error) << boost::format("Duet: Error uploading file: %1%, HTTP %2%, body: `%3%`") % error % status % body;
-			auto errormsg = wxString::Format("%s: %s", errortitle, format_error(body, error, status));
-			GUI::show_error(&progress_dialog, std::move(errormsg));
-			res = false;
-		})
-		.on_progress([&](Http::Progress progress, bool &cancel) {
-			if (cancel) {
-				// Upload was canceled
-				res = false;
-			} else if (progress.ultotal > 0) {
-				int value = PROGRESS_RANGE * progress.ulnow / progress.ultotal;
-				cancel = !progress_dialog.Update(std::min(value, PROGRESS_RANGE - 1));    // Cap the value to prevent premature dialog closing
-			} else {
-				cancel = !progress_dialog.Pulse();
-			}
-		})
-		.perform_sync();
-
-	disconnect();
-
-	return res;
-}
-
-bool Duet::upload(PrintHostUpload upload_data) const
+// bool Duet::send_gcode(const std::string &filename) const
+// {
+// 	enum { PROGRESS_RANGE = 1000 };
+
+// 	const auto errortitle = _(L("Error while uploading to the Duet"));
+// 	fs::path filepath(filename);
+
+// 	GUI::PrintHostSendDialog send_dialog(filepath.filename());
+// 	if (send_dialog.ShowModal() != wxID_OK) { return false; }
+
+// 	const bool print = send_dialog.start_print();
+// 	const auto upload_filepath = send_dialog.filename();
+// 	const auto upload_filename = upload_filepath.filename();
+// 	const auto upload_parent_path = upload_filepath.parent_path();
+
+// 	wxProgressDialog progress_dialog(
+// 	 	_(L("Duet upload")),
+// 	 	_(L("Sending G-code file to Duet...")),
+// 		PROGRESS_RANGE, nullptr, wxPD_AUTO_HIDE | wxPD_APP_MODAL | wxPD_CAN_ABORT);
+// 	progress_dialog.Pulse();
+
+// 	wxString connect_msg;
+// 	if (!connect(connect_msg)) {
+// 		auto errormsg = wxString::Format("%s: %s", errortitle, connect_msg);
+// 		GUI::show_error(&progress_dialog, std::move(errormsg));
+// 		return false;
+// 	}
+
+// 	bool res = true;
+
+// 	auto upload_cmd = get_upload_url(upload_filepath.string());
+// 	BOOST_LOG_TRIVIAL(info) << boost::format("Duet: Uploading file %1%, filename: %2%, path: %3%, print: %4%, command: %5%")
+// 		% filepath.string()
+// 		% upload_filename.string()
+// 		% upload_parent_path.string()
+// 		% print
+// 		% upload_cmd;
+
+// 	auto http = Http::post(std::move(upload_cmd));
+// 	http.set_post_body(filename)
+// 		.on_complete([&](std::string body, unsigned status) {
+// 			BOOST_LOG_TRIVIAL(debug) << boost::format("Duet: File uploaded: HTTP %1%: %2%") % status % body;
+// 			progress_dialog.Update(PROGRESS_RANGE);
+
+// 			int err_code = get_err_code_from_body(body);
+// 			if (err_code != 0) {
+// 				auto msg = format_error(body, L("Unknown error occured"), 0);
+// 				GUI::show_error(&progress_dialog, std::move(msg));
+// 				res = false;
+// 			} else if (print) {
+// 				wxString errormsg;
+// 				res = start_print(errormsg, upload_filepath.string());
+// 				if (!res) {
+// 					GUI::show_error(&progress_dialog, std::move(errormsg));
+// 				}
+// 			}
+// 		})
+// 		.on_error([&](std::string body, std::string error, unsigned status) {
+// 			BOOST_LOG_TRIVIAL(error) << boost::format("Duet: Error uploading file: %1%, HTTP %2%, body: `%3%`") % error % status % body;
+// 			auto errormsg = wxString::Format("%s: %s", errortitle, format_error(body, error, status));
+// 			GUI::show_error(&progress_dialog, std::move(errormsg));
+// 			res = false;
+// 		})
+// 		.on_progress([&](Http::Progress progress, bool &cancel) {
+// 			if (cancel) {
+// 				// Upload was canceled
+// 				res = false;
+// 			} else if (progress.ultotal > 0) {
+// 				int value = PROGRESS_RANGE * progress.ulnow / progress.ultotal;
+// 				cancel = !progress_dialog.Update(std::min(value, PROGRESS_RANGE - 1));    // Cap the value to prevent premature dialog closing
+// 			} else {
+// 				cancel = !progress_dialog.Pulse();
+// 			}
+// 		})
+// 		.perform_sync();
+
+// 	disconnect();
+
+// 	return res;
+// }
+
+bool Duet::upload(PrintHostUpload upload_data, Http::ProgressFn prorgess_fn, Http::ErrorFn error_fn) const
 {
+	// XXX: TODO
 	throw "unimplemented";
 }
 

src/slic3r/Utils/Duet.hpp

@@ -22,11 +22,10 @@ public:
 	bool test(wxString &curl_msg) const;
 	wxString get_test_ok_msg () const;
 	wxString get_test_failed_msg (wxString &msg) const;
-	// Send gcode file to duet, filename is expected to be in UTF-8
-	bool send_gcode(const std::string &filename) const;
-	bool upload(PrintHostUpload upload_data) const;
+	bool upload(PrintHostUpload upload_data, Http::ProgressFn prorgess_fn, Http::ErrorFn error_fn) const;
 	bool has_auto_discovery() const;
 	bool can_test() const;
+	virtual std::string get_host() const { return host; }
 private:
 	std::string host;
 	std::string password;

src/slic3r/Utils/Http.cpp

@@ -11,6 +11,7 @@
 #include <curl/curl.h>
 
 #include "libslic3r/libslic3r.h"
+#include "libslic3r/Utils.hpp"
 
 namespace fs = boost::filesystem;
 
@@ -44,6 +45,7 @@ struct Http::priv
 	// Using a deque here because unlike vector it doesn't ivalidate pointers on insertion
 	std::deque<fs::ifstream> form_files;
 	std::string postfields;
+	std::string error_buffer;    // Used for CURLOPT_ERRORBUFFER
 	size_t limit;
 	bool cancel;
 
@@ -69,13 +71,14 @@ struct Http::priv
 	void http_perform();
 };
 
-Http::priv::priv(const std::string &url) :
-	curl(::curl_easy_init()),
-	form(nullptr),
-	form_end(nullptr),
-	headerlist(nullptr),
-	limit(0),
-	cancel(false)
+Http::priv::priv(const std::string &url)
+	: curl(::curl_easy_init())
+	, form(nullptr)
+	, form_end(nullptr)
+	, headerlist(nullptr)
+	, error_buffer(CURL_ERROR_SIZE + 1, '\0')
+	, limit(0)
+	, cancel(false)
 {
 	if (curl == nullptr) {
 		throw std::runtime_error(std::string("Could not construct Curl object"));
@@ -83,6 +86,7 @@ Http::priv::priv(const std::string &url) :
 
 	::curl_easy_setopt(curl, CURLOPT_URL, url.c_str());   // curl makes a copy internally
 	::curl_easy_setopt(curl, CURLOPT_USERAGENT, SLIC3R_FORK_NAME "/" SLIC3R_VERSION);
+	::curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, &error_buffer.front());
 }
 
 Http::priv::~priv()
@@ -199,9 +203,10 @@ void Http::priv::set_post_body(const fs::path &path)
 
 std::string Http::priv::curl_error(CURLcode curlcode)
 {
-	return (boost::format("%1% (%2%)")
+	return (boost::format("%1% (%2%): %3%")
 		% ::curl_easy_strerror(curlcode)
 		% curlcode
+		% error_buffer
 	).str();
 }
 
@@ -227,9 +232,7 @@ void Http::priv::http_perform()
 	::curl_easy_setopt(curl, CURLOPT_PROGRESSDATA, static_cast<void*>(this));
 #endif
 
-#ifndef NDEBUG
-	::curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
-#endif
+	::curl_easy_setopt(curl, CURLOPT_VERBOSE, get_logging_level() >= 4);
 
 	if (headerlist != nullptr) {
 		::curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headerlist);

src/slic3r/Utils/Http.hpp

@@ -29,7 +29,7 @@ public:
 
 	typedef std::shared_ptr<Http> Ptr;
 	typedef std::function<void(std::string /* body */, unsigned /* http_status */)> CompleteFn;
-	
+
 	// A HTTP request may fail at various stages of completeness (URL parsing, DNS lookup, TCP connection, ...).
 	// If the HTTP request could not be made or failed before completion, the `error` arg contains a description
 	// of the error and `http_status` is zero.

src/slic3r/Utils/OctoPrint.cpp

@@ -4,9 +4,10 @@
 #include <boost/format.hpp>
 #include <boost/log/trivial.hpp>
 
+#include <wx/progdlg.h>
+
 #include "libslic3r/PrintConfig.hpp"
 #include "slic3r/GUI/I18N.hpp"
-#include "slic3r/GUI/PrintHostDialogs.hpp"   // XXX
 #include "Http.hpp"
 
 
@@ -16,164 +17,161 @@ namespace fs = boost::filesystem;
 namespace Slic3r {
 
 OctoPrint::OctoPrint(DynamicPrintConfig *config) :
-	host(config->opt_string("print_host")),
-	apikey(config->opt_string("printhost_apikey")),
-	cafile(config->opt_string("printhost_cafile"))
+    host(config->opt_string("print_host")),
+    apikey(config->opt_string("printhost_apikey")),
+    cafile(config->opt_string("printhost_cafile"))
 {}
 
 OctoPrint::~OctoPrint() {}
 
 bool OctoPrint::test(wxString &msg) const
 {
-	// Since the request is performed synchronously here,
-	// it is ok to refer to `msg` from within the closure
+    // Since the request is performed synchronously here,
+    // it is ok to refer to `msg` from within the closure
 
-	bool res = true;
-	auto url = make_url("api/version");
+    bool res = true;
+    auto url = make_url("api/version");
 
-	BOOST_LOG_TRIVIAL(info) << boost::format("Octoprint: Get version at: %1%") % url;
+    BOOST_LOG_TRIVIAL(info) << boost::format("Octoprint: Get version at: %1%") % url;
 
-	auto http = Http::get(std::move(url));
-	set_auth(http);
-	http.on_error([&](std::string body, std::string error, unsigned status) {
-			BOOST_LOG_TRIVIAL(error) << boost::format("Octoprint: Error getting version: %1%, HTTP %2%, body: `%3%`") % error % status % body;
-			res = false;
-			msg = format_error(body, error, status);
-		})
-		.on_complete([&](std::string body, unsigned) {
-			BOOST_LOG_TRIVIAL(debug) << boost::format("Octoprint: Got version: %1%") % body;
-		})
-		.perform_sync();
+    auto http = Http::get(std::move(url));
+    set_auth(http);
+    http.on_error([&](std::string body, std::string error, unsigned status) {
+            BOOST_LOG_TRIVIAL(error) << boost::format("Octoprint: Error getting version: %1%, HTTP %2%, body: `%3%`") % error % status % body;
+            res = false;
+            msg = format_error(body, error, status);
+        })
+        .on_complete([&](std::string body, unsigned) {
+            BOOST_LOG_TRIVIAL(debug) << boost::format("Octoprint: Got version: %1%") % body;
 
-	return res;
+            // TODO: parse body, call validate_version_text
+
+        })
+        .perform_sync();
+
+    return res;
 }
 
 wxString OctoPrint::get_test_ok_msg () const
 {
-	return wxString::Format("%s", _(L("Connection to OctoPrint works correctly.")));
+    return wxString::Format("%s", _(L("Connection to OctoPrint works correctly.")));
 }
 
 wxString OctoPrint::get_test_failed_msg (wxString &msg) const
 {
-	return wxString::Format("%s: %s\n\n%s",
-						_(L("Could not connect to OctoPrint")), msg, _(L("Note: OctoPrint version at least 1.1.0 is required.")));
+    return wxString::Format("%s: %s\n\n%s",
+                        _(L("Could not connect to OctoPrint")), msg, _(L("Note: OctoPrint version at least 1.1.0 is required.")));
 }
 
-bool OctoPrint::send_gcode(const std::string &filename) const
+bool OctoPrint::upload(PrintHostUpload upload_data, Http::ProgressFn prorgess_fn, Http::ErrorFn error_fn) const
 {
-	enum { PROGRESS_RANGE = 1000 };
+    const auto upload_filename = upload_data.upload_path.filename();
+    const auto upload_parent_path = upload_data.upload_path.parent_path();
 
-	const auto errortitle = _(L("Error while uploading to the OctoPrint server"));
-	fs::path filepath(filename);
+    wxString test_msg;
+    if (! test(test_msg)) {
 
-	PrintHostSendDialog send_dialog(filepath.filename());
-	if (send_dialog.ShowModal() != wxID_OK) { return false; }
+        // TODO:
 
-	const bool print = send_dialog.start_print();
-	const auto upload_filepath = send_dialog.filename();
-	const auto upload_filename = upload_filepath.filename();
-	const auto upload_parent_path = upload_filepath.parent_path();
+        // auto errormsg = wxString::Format("%s: %s", errortitle, test_msg);
+        // GUI::show_error(&progress_dialog, std::move(errormsg));
+        // return false;
+    }
 
-	wxProgressDialog progress_dialog(
-		_(L("OctoPrint upload")),
-		_(L("Sending G-code file to the OctoPrint server...")),
-		PROGRESS_RANGE, nullptr, wxPD_AUTO_HIDE | wxPD_APP_MODAL | wxPD_CAN_ABORT);
-	progress_dialog.Pulse();
+    bool res = true;
 
-	wxString test_msg;
-	if (!test(test_msg)) {
-		auto errormsg = wxString::Format("%s: %s", errortitle, test_msg);
-		GUI::show_error(&progress_dialog, std::move(errormsg));
-		return false;
-	}
+    auto url = make_url("api/files/local");
 
-	bool res = true;
+    BOOST_LOG_TRIVIAL(info) << boost::format("Octoprint: Uploading file %1% at %2%, filename: %3%, path: %4%, print: %5%")
+        % upload_data.source_path.string()
+        % url
+        % upload_filename.string()
+        % upload_parent_path.string()
+        % upload_data.start_print;
 
-	auto url = make_url("api/files/local");
+    auto http = Http::post(std::move(url));
+    set_auth(http);
+    http.form_add("print", upload_data.start_print ? "true" : "false")
+        .form_add("path", upload_parent_path.string())      // XXX: slashes on windows ???
+        .form_add_file("file", upload_data.source_path.string(), upload_filename.string())
+        .on_complete([&](std::string body, unsigned status) {
+            BOOST_LOG_TRIVIAL(debug) << boost::format("Octoprint: File uploaded: HTTP %1%: %2%") % status % body;
+        })
+        .on_error([&](std::string body, std::string error, unsigned status) {
+            BOOST_LOG_TRIVIAL(error) << boost::format("Octoprint: Error uploading file: %1%, HTTP %2%, body: `%3%`") % error % status % body;
+            error_fn(std::move(body), std::move(error), status);
+            res = false;
+        })
+        .on_progress([&](Http::Progress progress, bool &cancel) {
+            prorgess_fn(std::move(progress), cancel);
+            if (cancel) {
+                // Upload was canceled
+                BOOST_LOG_TRIVIAL(error) << "Octoprint: Upload canceled";
+                res = false;
+            }
+        })
+        .perform_sync();
 
-	BOOST_LOG_TRIVIAL(info) << boost::format("Octoprint: Uploading file %1% at %2%, filename: %3%, path: %4%, print: %5%")
-		% filepath.string()
-		% url
-		% upload_filename.string()
-		% upload_parent_path.string()
-		% print;
-
-	auto http = Http::post(std::move(url));
-	set_auth(http);
-	http.form_add("print", print ? "true" : "false")
-		.form_add("path", upload_parent_path.string())      // XXX: slashes on windows ???
-		.form_add_file("file", filename, upload_filename.string())
-		.on_complete([&](std::string body, unsigned status) {
-			BOOST_LOG_TRIVIAL(debug) << boost::format("Octoprint: File uploaded: HTTP %1%: %2%") % status % body;
-			progress_dialog.Update(PROGRESS_RANGE);
-		})
-		.on_error([&](std::string body, std::string error, unsigned status) {
-			BOOST_LOG_TRIVIAL(error) << boost::format("Octoprint: Error uploading file: %1%, HTTP %2%, body: `%3%`") % error % status % body;
-			auto errormsg = wxString::Format("%s: %s", errortitle, format_error(body, error, status));
-			GUI::show_error(&progress_dialog, std::move(errormsg));
-			res = false;
-		})
-		.on_progress([&](Http::Progress progress, bool &cancel) {
-			if (cancel) {
-				// Upload was canceled
-				res = false;
-			} else if (progress.ultotal > 0) {
-				int value = PROGRESS_RANGE * progress.ulnow / progress.ultotal;
-				cancel = !progress_dialog.Update(std::min(value, PROGRESS_RANGE - 1));    // Cap the value to prevent premature dialog closing
-			} else {
-				cancel = !progress_dialog.Pulse();
-			}
-		})
-		.perform_sync();
-
-	return res;
-}
-
-bool OctoPrint::upload(PrintHostUpload upload_data) const
-{
-	throw "unimplemented";
+    return res;
 }
 
 bool OctoPrint::has_auto_discovery() const
 {
-	return true;
+    return true;
 }
 
 bool OctoPrint::can_test() const
 {
-	return true;
+    return true;
+}
+
+bool OctoPrint::validate_version_text(const std::string &version_text)
+{
+    // FIXME
+    return true;
 }
 
 void OctoPrint::set_auth(Http &http) const
 {
-	http.header("X-Api-Key", apikey);
+    http.header("X-Api-Key", apikey);
 
-	if (! cafile.empty()) {
-		http.ca_file(cafile);
-	}
+    if (! cafile.empty()) {
+        http.ca_file(cafile);
+    }
 }
 
 std::string OctoPrint::make_url(const std::string &path) const
 {
-	if (host.find("http://") == 0 || host.find("https://") == 0) {
-		if (host.back() == '/') {
-			return (boost::format("%1%%2%") % host % path).str();
-		} else {
-			return (boost::format("%1%/%2%") % host % path).str();
-		}
-	} else {
-		return (boost::format("http://%1%/%2%") % host % path).str();
-	}
+    if (host.find("http://") == 0 || host.find("https://") == 0) {
+        if (host.back() == '/') {
+            return (boost::format("%1%%2%") % host % path).str();
+        } else {
+            return (boost::format("%1%/%2%") % host % path).str();
+        }
+    } else {
+        return (boost::format("http://%1%/%2%") % host % path).str();
+    }
 }
 
 wxString OctoPrint::format_error(const std::string &body, const std::string &error, unsigned status)
 {
-	if (status != 0) {
-		auto wxbody = wxString::FromUTF8(body.data());
-		return wxString::Format("HTTP %u: %s", status, wxbody);
-	} else {
-		return wxString::FromUTF8(error.data());
-	}
+    if (status != 0) {
+        auto wxbody = wxString::FromUTF8(body.data());
+        return wxString::Format("HTTP %u: %s", status, wxbody);
+    } else {
+        return wxString::FromUTF8(error.data());
+    }
+}
+
+
+// SL1
+
+SL1Host::~SL1Host() {}
+
+bool SL1Host::validate_version_text(const std::string &version_text)
+{
+    // FIXME
+    return true;
 }
 
 

src/slic3r/Utils/OctoPrint.hpp

@@ -16,25 +16,39 @@ class Http;
 class OctoPrint : public PrintHost
 {
 public:
-	OctoPrint(DynamicPrintConfig *config);
-	virtual ~OctoPrint();
+    OctoPrint(DynamicPrintConfig *config);
+    virtual ~OctoPrint();
+
+    bool test(wxString &curl_msg) const;
+    wxString get_test_ok_msg () const;
+    wxString get_test_failed_msg (wxString &msg) const;
+    bool upload(PrintHostUpload upload_data, Http::ProgressFn prorgess_fn, Http::ErrorFn error_fn) const;
+    bool has_auto_discovery() const;
+    bool can_test() const;
+    virtual std::string get_host() const { return host; }
+
+protected:
+    virtual bool validate_version_text(const std::string &version_text);
 
-	bool test(wxString &curl_msg) const;
-	wxString get_test_ok_msg () const;
-	wxString get_test_failed_msg (wxString &msg) const;
-	// Send gcode file to octoprint, filename is expected to be in UTF-8
-	bool send_gcode(const std::string &filename) const;
-	bool upload(PrintHostUpload upload_data) const;
-	bool has_auto_discovery() const;
-	bool can_test() const;
 private:
-	std::string host;
-	std::string apikey;
-	std::string cafile;
+    std::string host;
+    std::string apikey;
+    std::string cafile;
 
-	void set_auth(Http &http) const;
-	std::string make_url(const std::string &path) const;
-	static wxString format_error(const std::string &body, const std::string &error, unsigned status);
+    void set_auth(Http &http) const;
+    std::string make_url(const std::string &path) const;
+    static wxString format_error(const std::string &body, const std::string &error, unsigned status);
+};
+
+
+class SL1Host: public OctoPrint
+{
+public:
+    SL1Host(DynamicPrintConfig *config) : OctoPrint(config) {}
+    virtual ~SL1Host();
+
+protected:
+    virtual bool validate_version_text(const std::string &version_text);
 };
 
 

src/slic3r/Utils/PrintHost.cpp

@@ -1,15 +1,22 @@
-#include "OctoPrint.hpp"
-#include "Duet.hpp"
+#include "PrintHost.hpp"
 
 #include <vector>
 #include <thread>
 #include <boost/optional.hpp>
+#include <boost/log/trivial.hpp>
+#include <boost/filesystem.hpp>
+
+#include <wx/app.h>
 
 #include "libslic3r/PrintConfig.hpp"
 #include "libslic3r/Channel.hpp"
+#include "OctoPrint.hpp"
+#include "Duet.hpp"
+#include "../GUI/PrintHostDialogs.hpp"
 
+namespace fs = boost::filesystem;
 using boost::optional;
-
+using Slic3r::GUI::PrintHostQueueDialog;
 
 namespace Slic3r {
 
@@ -18,42 +25,152 @@ PrintHost::~PrintHost() {}
 
 PrintHost* PrintHost::get_print_host(DynamicPrintConfig *config)
 {
-    PrintHostType kind = config->option<ConfigOptionEnum<PrintHostType>>("host_type")->value;
-    if (kind == htOctoPrint) {
-        return new OctoPrint(config);
-    } else if (kind == htDuet) {
-        return new Duet(config);
+    const auto opt = config->option<ConfigOptionEnum<PrintHostType>>("host_type");
+    if (opt == nullptr) { return nullptr; }
+
+    switch (opt->value) {
+        case htOctoPrint: return new OctoPrint(config);
+        case htSL1:       return new SL1Host(config);
+        case htDuet:      return new Duet(config);
+        default: return nullptr;
     }
-    return nullptr;
 }
 
 
 struct PrintHostJobQueue::priv
 {
-    std::vector<PrintHostJob> jobs;
-    Channel<unsigned> channel;
+    // XXX: comment on how bg thread works
+
+    PrintHostJobQueue *q;
+
+    Channel<PrintHostJob> channel_jobs;
+    Channel<size_t> channel_cancels;
+    size_t job_id = 0;
+    int prev_progress = -1;
 
     std::thread bg_thread;
-    optional<PrintHostJob> bg_job;
+    bool bg_exit = false;
+
+    PrintHostQueueDialog *queue_dialog;
+
+    priv(PrintHostJobQueue *q) : q(q) {}
+
+    void start_bg_thread();
+    void bg_thread_main();
+    void progress_fn(Http::Progress progress, bool &cancel);
+    void error_fn(std::string body, std::string error, unsigned http_status);
+    void perform_job(PrintHostJob the_job);
 };
 
-PrintHostJobQueue::PrintHostJobQueue()
-    : p(new priv())
+PrintHostJobQueue::PrintHostJobQueue(PrintHostQueueDialog *queue_dialog)
+    : p(new priv(this))
 {
-    std::shared_ptr<priv> p2 = p;
-    p->bg_thread = std::thread([p2]() {
-        // Wait for commands on the channel:
-        auto cmd = p2->channel.pop();
-        // TODO
-    });
+    p->queue_dialog = queue_dialog;
 }
 
 PrintHostJobQueue::~PrintHostJobQueue()
 {
-    // TODO: stop the thread
-    // if (p && p->bg_thread.joinable()) {
-    //     p->bg_thread.detach();
-    // }
+    if (p && p->bg_thread.joinable()) {
+        p->bg_exit = true;
+        p->channel_jobs.push(PrintHostJob()); // Push an empty job to wake up bg_thread in case it's sleeping
+        p->bg_thread.detach();                // Let the background thread go, it should exit on its own
+    }
+}
+
+void PrintHostJobQueue::priv::start_bg_thread()
+{
+    if (bg_thread.joinable()) { return; }
+
+    std::shared_ptr<priv> p2 = q->p;
+    bg_thread = std::thread([p2]() {
+        p2->bg_thread_main();
+    });
+}
+
+void PrintHostJobQueue::priv::bg_thread_main()
+{
+    // bg thread entry point
+
+    try {
+        // Pick up jobs from the job channel:
+        while (! bg_exit) {
+            auto job = channel_jobs.pop();   // Sleeps in a cond var if there are no jobs
+            if (! job.cancelled) {
+                perform_job(std::move(job));
+            }
+            job_id++;
+        }
+    } catch (...) {
+        wxTheApp->OnUnhandledException();
+    }
+}
+
+void PrintHostJobQueue::priv::progress_fn(Http::Progress progress, bool &cancel)
+{
+    if (bg_exit) {
+        cancel = true;
+        return;
+    }
+
+    if (channel_cancels.size_hint() > 0) {
+        // Lock both queues
+        auto cancels = channel_cancels.lock_rw();
+        auto jobs = channel_jobs.lock_rw();
+
+        for (size_t cancel_id : *cancels) {
+            if (cancel_id == job_id) {
+                cancel = true;
+            } else if (cancel_id > job_id) {
+                jobs->at(cancel_id - job_id).cancelled = true;
+            }
+        }
+
+        cancels->clear();
+    }
+
+    int gui_progress = progress.ultotal > 0 ? 100*progress.ulnow / progress.ultotal : 0;
+    if (gui_progress != prev_progress) {
+        auto evt = new PrintHostQueueDialog::Event(GUI::EVT_PRINTHOST_PROGRESS, queue_dialog->GetId(), job_id, gui_progress);
+        wxQueueEvent(queue_dialog, evt);
+        prev_progress = gui_progress;
+    }
+}
+
+void PrintHostJobQueue::priv::error_fn(std::string body, std::string error, unsigned http_status)
+{
+    // TODO
+}
+
+void PrintHostJobQueue::priv::perform_job(PrintHostJob the_job)
+{
+    if (bg_exit || the_job.empty()) { return; }
+
+    BOOST_LOG_TRIVIAL(debug) << boost::format("PrintHostJobQueue/bg_thread: Got job: `%1%` -> `%1%`")
+        % the_job.upload_data.upload_path
+        % the_job.printhost->get_host();
+
+    const fs::path gcode_path = the_job.upload_data.source_path;
+
+    the_job.printhost->upload(std::move(the_job.upload_data),
+        [this](Http::Progress progress, bool &cancel) { this->progress_fn(std::move(progress), cancel); },
+        [this](std::string body, std::string error, unsigned http_status) { this->error_fn(std::move(body), std::move(error), http_status); }
+    );
+
+    auto evt = new PrintHostQueueDialog::Event(GUI::EVT_PRINTHOST_PROGRESS, queue_dialog->GetId(), job_id, 100);
+    wxQueueEvent(queue_dialog, evt);
+
+    boost::system::error_code ec;
+    fs::remove(gcode_path, ec);
+    if (ec) {
+        BOOST_LOG_TRIVIAL(error) << boost::format("PrintHostJobQueue: Error removing file `%1%`: %2%") % gcode_path % ec;
+    }
+}
+
+void PrintHostJobQueue::enqueue(PrintHostJob job)
+{
+    p->start_bg_thread();
+    p->queue_dialog->append_job(job);
+    p->channel_jobs.push(std::move(job));
 }
 
 

src/slic3r/Utils/PrintHost.hpp

@@ -7,6 +7,8 @@
 
 #include <wx/string.h>
 
+#include "Http.hpp"
+
 
 namespace Slic3r {
 
@@ -29,11 +31,10 @@ public:
     virtual bool test(wxString &curl_msg) const = 0;
     virtual wxString get_test_ok_msg () const = 0;
     virtual wxString get_test_failed_msg (wxString &msg) const = 0;
-    // Send gcode file to print host, filename is expected to be in UTF-8
-    virtual bool send_gcode(const std::string &filename) const = 0;         // XXX: remove in favor of upload()
-    virtual bool upload(PrintHostUpload upload_data) const = 0;
+    virtual bool upload(PrintHostUpload upload_data, Http::ProgressFn prorgess_fn, Http::ErrorFn error_fn) const = 0;
     virtual bool has_auto_discovery() const = 0;
     virtual bool can_test() const = 0;
+    virtual std::string get_host() const = 0;
 
     static PrintHost* get_print_host(DynamicPrintConfig *config);
 };
@@ -43,6 +44,7 @@ struct PrintHostJob
 {
     PrintHostUpload upload_data;
     std::unique_ptr<PrintHost> printhost;
+    bool cancelled = false;
 
     PrintHostJob() {}
     PrintHostJob(const PrintHostJob&) = delete;
@@ -68,10 +70,12 @@ struct PrintHostJob
 };
 
 
+namespace GUI { class PrintHostQueueDialog; }
+
 class PrintHostJobQueue
 {
 public:
-    PrintHostJobQueue();
+    PrintHostJobQueue(GUI::PrintHostQueueDialog *queue_dialog);
     PrintHostJobQueue(const PrintHostJobQueue &) = delete;
     PrintHostJobQueue(PrintHostJobQueue &&other) = delete;
     ~PrintHostJobQueue();
@@ -79,6 +83,9 @@ public:
     PrintHostJobQueue& operator=(const PrintHostJobQueue &) = delete;
     PrintHostJobQueue& operator=(PrintHostJobQueue &&other) = delete;
 
+    void enqueue(PrintHostJob job);
+    void cancel(size_t id);
+
 private:
     struct priv;
     std::shared_ptr<priv> p;