WIP: Moved sources int src/, separated most of the source code from Perl.

The XS was left only for the unit / integration tests, and it links
libslic3r only. No wxWidgets are allowed to be used from Perl starting
from now.

src/slic3r/GUI/wxExtensions.hpp

@@ -0,0 +1,773 @@
+#ifndef slic3r_GUI_wxExtensions_hpp_
+#define slic3r_GUI_wxExtensions_hpp_
+
+#include <wx/checklst.h>
+#include <wx/combo.h>
+#include <wx/dataview.h>
+#include <wx/dc.h>
+#include <wx/collpane.h>
+#include <wx/wupdlock.h>
+#include <wx/button.h>
+#include <wx/slider.h>
+
+#include <vector>
+#include <set>
+
+class wxCheckListBoxComboPopup : public wxCheckListBox, public wxComboPopup
+{
+    static const unsigned int DefaultWidth;
+    static const unsigned int DefaultHeight;
+    static const unsigned int DefaultItemHeight;
+
+    wxString m_text;
+
+    // Events sent on mouseclick are quite complex. Function OnListBoxSelection is supposed to pass the event to the checkbox, which works fine on
+    // Win. On OSX and Linux the events are generated differently - clicking on the checkbox square generates the event twice (and the square
+    // therefore seems not to respond).
+    // This enum is meant to save current state of affairs, i.e., if the event forwarding is ok to do or not. It is only used on Linux
+    // and OSX by some #ifdefs. It also stores information whether OnListBoxSelection is supposed to change the checkbox status,
+    // or if it changed status on its own already (which happens when the square is clicked). More comments in OnCheckListBox(...)
+    // There indeed is a better solution, maybe making a custom event used for the event passing to distinguish the original and passed message
+    // and blocking one of them on OSX and Linux. Feel free to refactor, but carefully test on all platforms.
+    enum class OnCheckListBoxFunction{
+        FreeToProceed,
+        RefuseToProceed,
+        WasRefusedLastTime
+    } m_check_box_events_status = OnCheckListBoxFunction::FreeToProceed;
+
+
+public:
+    virtual bool Create(wxWindow* parent);
+    virtual wxWindow* GetControl();
+    virtual void SetStringValue(const wxString& value);
+    virtual wxString GetStringValue() const;
+    virtual wxSize GetAdjustedSize(int minWidth, int prefHeight, int maxHeight);
+
+    virtual void OnKeyEvent(wxKeyEvent& evt);
+
+    void OnCheckListBox(wxCommandEvent& evt);
+    void OnListBoxSelection(wxCommandEvent& evt);
+};
+
+
+// ***  wxDataViewTreeCtrlComboBox  ***
+
+class wxDataViewTreeCtrlComboPopup: public wxDataViewTreeCtrl, public wxComboPopup
+{
+	static const unsigned int DefaultWidth;
+	static const unsigned int DefaultHeight;
+	static const unsigned int DefaultItemHeight;
+
+	wxString	m_text;
+	int			m_cnt_open_items{0};
+
+public:
+	virtual bool		Create(wxWindow* parent);
+	virtual wxWindow*	GetControl() { return this; }
+	virtual void		SetStringValue(const wxString& value) { m_text = value; }
+	virtual wxString	GetStringValue() const { return m_text; }
+//	virtual wxSize		GetAdjustedSize(int minWidth, int prefHeight, int maxHeight);
+
+	virtual void		OnKeyEvent(wxKeyEvent& evt);
+	void				OnDataViewTreeCtrlSelection(wxCommandEvent& evt);
+	void				SetItemsCnt(int cnt) { m_cnt_open_items = cnt; }
+};
+
+
+
+// ***  PrusaCollapsiblePane  *** 
+// ----------------------------------------------------------------------------
+class PrusaCollapsiblePane : public wxCollapsiblePane
+{
+public:
+	PrusaCollapsiblePane() {}
+	PrusaCollapsiblePane(wxWindow *parent,
+		wxWindowID winid,
+		const wxString& label,
+		const wxPoint& pos = wxDefaultPosition,
+		const wxSize& size = wxDefaultSize,
+		long style = wxCP_DEFAULT_STYLE,
+		const wxValidator& val = wxDefaultValidator,
+		const wxString& name = wxCollapsiblePaneNameStr)
+	{
+		Create(parent, winid, label, pos, size, style, val, name);
+	}
+	~PrusaCollapsiblePane() {}
+
+	void OnStateChange(const wxSize& sz); //override/hide of OnStateChange from wxCollapsiblePane
+	virtual bool Show(bool show = true) override {
+		wxCollapsiblePane::Show(show);
+		OnStateChange(GetBestSize());
+		return true;
+	}
+};
+
+
+// ***  PrusaCollapsiblePaneMSW  ***  used only #ifdef __WXMSW__
+// ----------------------------------------------------------------------------
+#ifdef __WXMSW__
+class PrusaCollapsiblePaneMSW : public PrusaCollapsiblePane//wxCollapsiblePane
+{
+	wxButton*	m_pDisclosureTriangleButton = nullptr;
+	wxBitmap	m_bmp_close;
+	wxBitmap	m_bmp_open;
+public:
+	PrusaCollapsiblePaneMSW() {}
+	PrusaCollapsiblePaneMSW(	wxWindow *parent,
+							wxWindowID winid,
+							const wxString& label,
+							const wxPoint& pos = wxDefaultPosition,
+							const wxSize& size = wxDefaultSize,
+							long style = wxCP_DEFAULT_STYLE,
+							const wxValidator& val = wxDefaultValidator,
+							const wxString& name = wxCollapsiblePaneNameStr)
+	{
+		Create(parent, winid, label, pos, size, style, val, name);
+	}
+
+	~PrusaCollapsiblePaneMSW() {}
+
+	bool Create(wxWindow *parent,
+				wxWindowID id,
+				const wxString& label,
+				const wxPoint& pos,
+				const wxSize& size,
+				long style,
+				const wxValidator& val,
+				const wxString& name);
+
+	void UpdateBtnBmp();
+	void SetLabel(const wxString &label) override;
+	bool Layout() override;
+	void Collapse(bool collapse) override;
+};
+#endif //__WXMSW__
+
+// *****************************************************************************
+
+// ----------------------------------------------------------------------------
+// PrusaDataViewBitmapText: helper class used by PrusaBitmapTextRenderer
+// ----------------------------------------------------------------------------
+
+class PrusaDataViewBitmapText : public wxObject
+{
+public:
+    PrusaDataViewBitmapText(const wxString &text = wxEmptyString,
+        const wxBitmap& bmp = wxNullBitmap) :
+        m_text(text), m_bmp(bmp)
+    { }
+
+    PrusaDataViewBitmapText(const PrusaDataViewBitmapText &other)
+        : wxObject(),
+        m_text(other.m_text),
+        m_bmp(other.m_bmp)
+    { }
+
+    void SetText(const wxString &text)      { m_text = text; }
+    wxString GetText() const                { return m_text; }
+    void SetBitmap(const wxIcon &icon)      { m_bmp = icon; }
+    const wxBitmap &GetBitmap() const       { return m_bmp; }
+
+    bool IsSameAs(const PrusaDataViewBitmapText& other) const {
+        return m_text == other.m_text && m_bmp.IsSameAs(other.m_bmp);
+    }
+
+    bool operator==(const PrusaDataViewBitmapText& other) const {
+        return IsSameAs(other);
+    }
+
+    bool operator!=(const PrusaDataViewBitmapText& other) const {
+        return !IsSameAs(other);
+    }
+
+private:
+    wxString    m_text;
+    wxBitmap    m_bmp;
+};
+DECLARE_VARIANT_OBJECT(PrusaDataViewBitmapText)
+
+
+// ----------------------------------------------------------------------------
+// PrusaObjectDataViewModelNode: a node inside PrusaObjectDataViewModel
+// ----------------------------------------------------------------------------
+
+class PrusaObjectDataViewModelNode;
+WX_DEFINE_ARRAY_PTR(PrusaObjectDataViewModelNode*, MyObjectTreeModelNodePtrArray);
+
+class PrusaObjectDataViewModelNode
+{
+	PrusaObjectDataViewModelNode*	m_parent;
+	MyObjectTreeModelNodePtrArray   m_children;
+    wxIcon                          m_empty_icon;
+    wxBitmap                        m_empty_bmp;
+    std::vector< std::string >      m_opt_categories;
+public:
+	PrusaObjectDataViewModelNode(const wxString &name, const int instances_count=1) {
+		m_parent	= NULL;
+		m_name		= name;
+		m_copy		= wxString::Format("%d", instances_count);
+		m_type		= "object";
+		m_volume_id	= -1;
+#ifdef __WXGTK__
+        // it's necessary on GTK because of control have to know if this item will be container
+        // in another case you couldn't to add subitem for this item
+        // it will be produce "segmentation fault"
+        m_container = true;
+#endif  //__WXGTK__
+		set_object_action_icon();
+	}
+
+	PrusaObjectDataViewModelNode(	PrusaObjectDataViewModelNode* parent,
+									const wxString& sub_obj_name, 
+									const wxBitmap& bmp, 
+                                    const wxString& extruder, 
+									const int volume_id=-1) {
+		m_parent	= parent;
+		m_name		= sub_obj_name;
+		m_copy		= wxEmptyString;
+		m_bmp		= bmp;
+		m_type		= "volume";
+		m_volume_id = volume_id;
+        m_extruder = extruder;
+#ifdef __WXGTK__
+        // it's necessary on GTK because of control have to know if this item will be container
+        // in another case you couldn't to add subitem for this item
+        // it will be produce "segmentation fault"
+        m_container = true;
+#endif  //__WXGTK__
+		set_part_action_icon();
+    }
+
+    PrusaObjectDataViewModelNode(   PrusaObjectDataViewModelNode* parent) :
+                                    m_parent(parent),
+                                    m_name("Settings to modified"),
+                                    m_copy(wxEmptyString),
+                                    m_type("settings"),
+                                    m_extruder(wxEmptyString) {}
+
+	~PrusaObjectDataViewModelNode()
+	{
+		// free all our children nodes
+		size_t count = m_children.GetCount();
+		for (size_t i = 0; i < count; i++)
+		{
+			PrusaObjectDataViewModelNode *child = m_children[i];
+			delete child;
+		}
+	}
+	
+	wxString				m_name;
+	wxIcon&					m_icon = m_empty_icon;
+    wxBitmap&               m_bmp = m_empty_bmp;
+	wxString				m_copy;
+	std::string				m_type;
+	int						m_volume_id = -2;
+	bool					m_container = false;
+	wxString				m_extruder = "default";
+	wxBitmap				m_action_icon;
+
+	bool IsContainer() const
+	{
+		return m_container;
+	}
+
+	PrusaObjectDataViewModelNode* GetParent()
+	{
+		return m_parent;
+	}
+	MyObjectTreeModelNodePtrArray& GetChildren()
+	{
+		return m_children;
+	}
+	PrusaObjectDataViewModelNode* GetNthChild(unsigned int n)
+	{
+		return m_children.Item(n);
+	}
+	void Insert(PrusaObjectDataViewModelNode* child, unsigned int n)
+	{
+		if (!m_container)
+			m_container = true;
+		m_children.Insert(child, n);
+	}
+	void Append(PrusaObjectDataViewModelNode* child)
+	{
+		if (!m_container)
+			m_container = true;
+		m_children.Add(child);
+	}
+	void RemoveAllChildren()
+	{
+		if (GetChildCount() == 0)
+			return;
+		for (size_t id = GetChildCount() - 1; id >= 0; --id)
+		{
+			if (m_children.Item(id)->GetChildCount() > 0)
+				m_children[id]->RemoveAllChildren();
+			auto node = m_children[id];
+			m_children.RemoveAt(id);
+			delete node;
+		}
+	}
+
+	size_t GetChildCount() const
+	{
+		return m_children.GetCount();
+	}
+
+	bool SetValue(const wxVariant &variant, unsigned int col)
+	{
+		switch (col)
+		{
+		case 0:{
+            PrusaDataViewBitmapText data;
+			data << variant;
+            m_bmp = data.GetBitmap();
+			m_name = data.GetText();
+			return true;}
+		case 1:
+			m_copy = variant.GetString();
+			return true;
+		case 2:
+			m_extruder = variant.GetString();
+			return true;
+		case 3:
+			m_action_icon << variant;
+			return true;
+		default:
+			printf("MyObjectTreeModel::SetValue: wrong column");
+		}
+		return false;
+	}
+	void SetIcon(const wxIcon &icon)
+	{
+		m_icon = icon;
+	}
+
+	void SetBitmap(const wxBitmap &icon)
+	{
+		m_bmp = icon;
+	}
+	
+	void SetType(const std::string& type){
+		m_type = type;
+	}	
+	const std::string& GetType(){
+		return m_type;
+	}
+
+	void SetVolumeId(const int& volume_id){
+		m_volume_id = volume_id;
+	}
+	const int& GetVolumeId(){
+		return m_volume_id;
+	}
+
+	// use this function only for childrens
+	void AssignAllVal(PrusaObjectDataViewModelNode& from_node)
+	{
+		// ! Don't overwrite other values because of equality of this values for all children --
+		m_name = from_node.m_name;
+		m_icon = from_node.m_icon;
+		m_volume_id = from_node.m_volume_id;
+		m_extruder = from_node.m_extruder;
+	}
+
+	bool SwapChildrens(int frst_id, int scnd_id) {
+		if (GetChildCount() < 2 || 
+			frst_id < 0 || frst_id >= GetChildCount() || 
+			scnd_id < 0 || scnd_id >= GetChildCount())
+			return false;
+
+		PrusaObjectDataViewModelNode new_scnd = *GetNthChild(frst_id);
+		PrusaObjectDataViewModelNode new_frst = *GetNthChild(scnd_id);
+
+		new_scnd.m_volume_id = m_children.Item(scnd_id)->m_volume_id;
+		new_frst.m_volume_id = m_children.Item(frst_id)->m_volume_id;
+
+		m_children.Item(frst_id)->AssignAllVal(new_frst);
+		m_children.Item(scnd_id)->AssignAllVal(new_scnd);
+		return true;
+	}
+
+	// Set action icons for node
+	void set_object_action_icon();
+	void set_part_action_icon();
+    bool update_settings_digest(const std::vector<std::string>& categories);
+};
+
+// ----------------------------------------------------------------------------
+// PrusaObjectDataViewModel
+// ----------------------------------------------------------------------------
+
+class PrusaObjectDataViewModel :public wxDataViewModel
+{
+	std::vector<PrusaObjectDataViewModelNode*> m_objects;
+public:
+    PrusaObjectDataViewModel();
+    ~PrusaObjectDataViewModel();
+
+	wxDataViewItem Add(const wxString &name);
+	wxDataViewItem Add(const wxString &name, const int instances_count);
+	wxDataViewItem AddChild(const wxDataViewItem &parent_item, 
+							const wxString &name, 
+                            const wxBitmap& icon,
+                            const int extruder = 0,
+                            const bool create_frst_child = true);
+	wxDataViewItem AddSettingsChild(const wxDataViewItem &parent_item);
+	wxDataViewItem Delete(const wxDataViewItem &item);
+	void DeleteAll();
+    void DeleteChildren(wxDataViewItem& parent);
+	wxDataViewItem GetItemById(int obj_idx);
+	wxDataViewItem GetItemByVolumeId(int obj_idx, int volume_idx);
+	int GetIdByItem(wxDataViewItem& item);
+	int GetVolumeIdByItem(const wxDataViewItem& item);
+	bool IsEmpty() { return m_objects.empty(); }
+
+	// helper method for wxLog
+
+	wxString GetName(const wxDataViewItem &item) const;
+	wxString GetCopy(const wxDataViewItem &item) const;
+	wxIcon&  GetIcon(const wxDataViewItem &item) const;
+    wxBitmap& GetBitmap(const wxDataViewItem &item) const;
+
+	// helper methods to change the model
+
+	virtual unsigned int GetColumnCount() const override { return 3;}
+	virtual wxString GetColumnType(unsigned int col) const override{ return wxT("string"); }
+
+	virtual void GetValue(wxVariant &variant,
+		const wxDataViewItem &item, unsigned int col) const override;
+	virtual bool SetValue(const wxVariant &variant,
+		const wxDataViewItem &item, unsigned int col) override;
+	bool SetValue(const wxVariant &variant, const int item_idx, unsigned int col);
+
+	wxDataViewItem MoveChildUp(const wxDataViewItem &item);
+	wxDataViewItem MoveChildDown(const wxDataViewItem &item);
+    // For parent move child from cur_volume_id place to new_volume_id 
+    // Remaining items will moved up/down accordingly
+    wxDataViewItem ReorganizeChildren(int cur_volume_id, 
+                                      int new_volume_id,
+                                      const wxDataViewItem &parent);
+
+	virtual bool IsEnabled(const wxDataViewItem &item, unsigned int col) const override;
+
+	virtual wxDataViewItem GetParent(const wxDataViewItem &item) const override;
+	virtual bool IsContainer(const wxDataViewItem &item) const override;
+	virtual unsigned int GetChildren(const wxDataViewItem &parent,
+		wxDataViewItemArray &array) const override;
+
+	// Is the container just a header or an item with all columns
+	// In our case it is an item with all columns 
+	virtual bool HasContainerColumns(const wxDataViewItem& WXUNUSED(item)) const override {	return true; }
+
+    wxDataViewItem    HasSettings(const wxDataViewItem &item) const;
+    bool    IsSettingsItem(const wxDataViewItem &item) const;
+    void    UpdateSettingsDigest(const wxDataViewItem &item, const std::vector<std::string>& categories);
+};
+
+// ----------------------------------------------------------------------------
+// PrusaBitmapTextRenderer
+// ----------------------------------------------------------------------------
+
+class PrusaBitmapTextRenderer : public wxDataViewCustomRenderer
+{
+public:
+    PrusaBitmapTextRenderer(  wxDataViewCellMode mode = wxDATAVIEW_CELL_INERT,
+                            int align = wxDVR_DEFAULT_ALIGNMENT): 
+                            wxDataViewCustomRenderer(wxT("wxObject"), mode, align) {}
+
+    bool SetValue(const wxVariant &value);
+    bool GetValue(wxVariant &value) const;
+
+    virtual bool Render(wxRect cell, wxDC *dc, int state);
+    virtual wxSize GetSize() const;
+
+    virtual bool HasEditorCtrl() const { return false; }
+
+private:
+//      wxDataViewIconText   m_value;
+    PrusaDataViewBitmapText m_value;
+};
+
+
+// ----------------------------------------------------------------------------
+// MyCustomRenderer
+// ----------------------------------------------------------------------------
+
+class MyCustomRenderer : public wxDataViewCustomRenderer
+{
+public:
+	// This renderer can be either activatable or editable, for demonstration
+	// purposes. In real programs, you should select whether the user should be
+	// able to activate or edit the cell and it doesn't make sense to switch
+	// between the two -- but this is just an example, so it doesn't stop us.
+	explicit MyCustomRenderer(wxDataViewCellMode mode)
+		: wxDataViewCustomRenderer("string", mode, wxALIGN_CENTER)
+	{ }
+
+	virtual bool Render(wxRect rect, wxDC *dc, int state) override/*wxOVERRIDE*/
+	{
+		dc->SetBrush(*wxLIGHT_GREY_BRUSH);
+		dc->SetPen(*wxTRANSPARENT_PEN);
+
+		rect.Deflate(2);
+		dc->DrawRoundedRectangle(rect, 5);
+
+		RenderText(m_value,
+			0, // no offset
+			wxRect(dc->GetTextExtent(m_value)).CentreIn(rect),
+			dc,
+			state);
+		return true;
+	}
+
+		virtual bool ActivateCell(const wxRect& WXUNUSED(cell),
+		wxDataViewModel *WXUNUSED(model),
+		const wxDataViewItem &WXUNUSED(item),
+		unsigned int WXUNUSED(col),
+		const wxMouseEvent *mouseEvent) override/*wxOVERRIDE*/
+	{
+		wxString position;
+		if (mouseEvent)
+			position = wxString::Format("via mouse at %d, %d", mouseEvent->m_x, mouseEvent->m_y);
+		else
+			position = "from keyboard";
+//		wxLogMessage("MyCustomRenderer ActivateCell() %s", position);
+		return false;
+	}
+
+		virtual wxSize GetSize() const override/*wxOVERRIDE*/
+	{
+		return wxSize(60, 20);
+	}
+
+		virtual bool SetValue(const wxVariant &value) override/*wxOVERRIDE*/
+	{
+		m_value = value.GetString();
+		return true;
+	}
+
+		virtual bool GetValue(wxVariant &WXUNUSED(value)) const override/*wxOVERRIDE*/{ return true; }
+
+		virtual bool HasEditorCtrl() const override/*wxOVERRIDE*/{ return true; }
+
+		virtual wxWindow*
+		CreateEditorCtrl(wxWindow* parent,
+		wxRect labelRect,
+		const wxVariant& value) override/*wxOVERRIDE*/
+	{
+		wxTextCtrl* text = new wxTextCtrl(parent, wxID_ANY, value,
+		labelRect.GetPosition(),
+		labelRect.GetSize(),
+		wxTE_PROCESS_ENTER);
+		text->SetInsertionPointEnd();
+
+		return text;
+	}
+
+		virtual bool
+			GetValueFromEditorCtrl(wxWindow* ctrl, wxVariant& value) override/*wxOVERRIDE*/
+	{
+		wxTextCtrl* text = wxDynamicCast(ctrl, wxTextCtrl);
+		if (!text)
+			return false;
+
+		value = text->GetValue();
+
+		return true;
+	}
+
+private:
+	wxString m_value;
+};
+
+
+// ----------------------------------------------------------------------------
+// PrusaDoubleSlider
+// ----------------------------------------------------------------------------
+
+enum SelectedSlider {
+    ssUndef,
+    ssLower,
+    ssHigher
+};
+enum TicksAction{
+    taOnIcon,
+    taAdd,
+    taDel
+};
+class PrusaDoubleSlider : public wxControl
+{
+public:
+    PrusaDoubleSlider(
+        wxWindow *parent,
+        wxWindowID id,
+        int lowerValue, 
+        int higherValue, 
+        int minValue, 
+        int maxValue,
+        const wxPoint& pos = wxDefaultPosition,
+        const wxSize& size = wxDefaultSize,
+        long style = wxSL_VERTICAL,
+        const wxValidator& val = wxDefaultValidator,
+        const wxString& name = wxEmptyString);
+    ~PrusaDoubleSlider(){}
+
+    int GetLowerValue() const {
+        return m_lower_value;
+    }
+    int GetHigherValue() const {
+        return m_higher_value;
+    }
+    int GetActiveValue() const;
+    double GetLowerValueD()  const { return get_double_value(ssLower); }
+    double GetHigherValueD() const { return get_double_value(ssHigher); }
+    wxSize DoGetBestSize() const override;
+    void SetLowerValue(const int lower_val);
+    void SetHigherValue(const int higher_val);
+    void SetMaxValue(const int max_value);
+    void SetKoefForLabels(const double koef) {
+        m_label_koef = koef;
+    }
+    void SetSliderValues(const std::vector<std::pair<int, double>>& values) {
+        m_values = values;
+    }
+    void ChangeOneLayerLock();
+
+    void OnPaint(wxPaintEvent& ){ render();}
+    void OnLeftDown(wxMouseEvent& event);
+    void OnMotion(wxMouseEvent& event);
+    void OnLeftUp(wxMouseEvent& event);
+    void OnEnterWin(wxMouseEvent& event){ enter_window(event, true); }
+    void OnLeaveWin(wxMouseEvent& event){ enter_window(event, false); }
+    void OnWheel(wxMouseEvent& event);
+    void OnKeyDown(wxKeyEvent &event);
+    void OnKeyUp(wxKeyEvent &event);
+    void OnRightDown(wxMouseEvent& event);
+    void OnRightUp(wxMouseEvent& event);
+
+protected:
+ 
+    void    render();
+    void    draw_focus_rect();
+    void    draw_action_icon(wxDC& dc, const wxPoint pt_beg, const wxPoint pt_end);
+    void    draw_scroll_line(wxDC& dc, const int lower_pos, const int higher_pos);
+    void    draw_thumb(wxDC& dc, const wxCoord& pos_coord, const SelectedSlider& selection);
+    void    draw_thumbs(wxDC& dc, const wxCoord& lower_pos, const wxCoord& higher_pos);
+    void    draw_ticks(wxDC& dc);
+    void    draw_one_layer_icon(wxDC& dc);
+    void    draw_thumb_item(wxDC& dc, const wxPoint& pos, const SelectedSlider& selection);
+    void    draw_info_line_with_icon(wxDC& dc, const wxPoint& pos, SelectedSlider selection);
+    void    draw_thumb_text(wxDC& dc, const wxPoint& pos, const SelectedSlider& selection) const;
+
+    void    update_thumb_rect(const wxCoord& begin_x, const wxCoord& begin_y, const SelectedSlider& selection);
+    void    detect_selected_slider(const wxPoint& pt, const bool is_mouse_wheel = false);
+    void    correct_lower_value();
+    void    correct_higher_value();
+    void    move_current_thumb(const bool condition);
+    void    action_tick(const TicksAction action);
+    void    enter_window(wxMouseEvent& event, const bool enter);
+
+    bool    is_point_in_rect(const wxPoint& pt, const wxRect& rect);
+    bool    is_horizontal() const { return m_style == wxSL_HORIZONTAL; }
+
+    double      get_scroll_step();
+    wxString    get_label(const SelectedSlider& selection) const;
+    void        get_lower_and_higher_position(int& lower_pos, int& higher_pos);
+    int         get_value_from_position(const wxCoord x, const wxCoord y);
+    wxCoord     get_position_from_value(const int value);
+    wxSize      get_size();
+    void        get_size(int *w, int *h);
+    double      get_double_value(const SelectedSlider& selection) const;
+
+private:
+    int         m_min_value;
+    int         m_max_value;
+    int         m_lower_value;
+    int         m_higher_value;
+    wxBitmap    m_bmp_thumb_higher;
+    wxBitmap    m_bmp_thumb_lower;
+    wxBitmap    m_bmp_add_tick_on;
+    wxBitmap    m_bmp_add_tick_off;
+    wxBitmap    m_bmp_del_tick_on;
+    wxBitmap    m_bmp_del_tick_off;
+    wxBitmap    m_bmp_one_layer_lock_on;
+    wxBitmap    m_bmp_one_layer_lock_off;
+    wxBitmap    m_bmp_one_layer_unlock_on;
+    wxBitmap    m_bmp_one_layer_unlock_off;
+    SelectedSlider  m_selection;
+    bool        m_is_left_down = false;
+    bool        m_is_right_down = false;
+    bool        m_is_one_layer = false;
+    bool        m_is_focused = false;
+    bool        m_is_action_icon_focesed = false;
+    bool        m_is_one_layer_icon_focesed = false;
+
+    wxRect      m_rect_lower_thumb;
+    wxRect      m_rect_higher_thumb;
+    wxRect      m_rect_tick_action;
+    wxRect      m_rect_one_layer_icon;
+    wxSize      m_thumb_size;
+    int         m_tick_icon_dim;
+    int         m_lock_icon_dim;
+    long        m_style;
+    float       m_label_koef = 1.0;
+
+// control's view variables
+    wxCoord SLIDER_MARGIN; // margin around slider
+
+    wxPen   DARK_ORANGE_PEN;
+    wxPen   ORANGE_PEN;
+    wxPen   LIGHT_ORANGE_PEN;
+
+    wxPen   DARK_GREY_PEN;
+    wxPen   GREY_PEN;
+    wxPen   LIGHT_GREY_PEN;
+
+    std::vector<wxPen*> line_pens;
+    std::vector<wxPen*> segm_pens;
+    std::set<int>       m_ticks;
+    std::vector<std::pair<int,double>> m_values;
+};
+
+
+// ----------------------------------------------------------------------------
+// PrusaLockButton
+// ----------------------------------------------------------------------------
+
+class PrusaLockButton : public wxButton
+{
+public:
+    PrusaLockButton(
+        wxWindow *parent,
+        wxWindowID id,
+        const wxPoint& pos = wxDefaultPosition,
+        const wxSize& size = wxDefaultSize);
+    ~PrusaLockButton(){}
+
+    void    OnButton(wxCommandEvent& event);
+    void    OnEnterBtn(wxMouseEvent& event){ enter_button(true); event.Skip(); }
+    void    OnLeaveBtn(wxMouseEvent& event){ enter_button(false); event.Skip(); }
+
+    bool    IsLocked() const { return m_is_pushed; }
+
+protected:
+    void    enter_button(const bool enter);
+
+private:
+    bool        m_is_pushed = false;
+
+    wxBitmap    m_bmp_lock_on;
+    wxBitmap    m_bmp_lock_off;
+    wxBitmap    m_bmp_unlock_on;
+    wxBitmap    m_bmp_unlock_off;
+
+    int         m_lock_icon_dim;
+};
+
+
+// ******************************* EXPERIMENTS **********************************************
+// ******************************************************************************************
+
+
+#endif // slic3r_GUI_wxExtensions_hpp_