Merged branch 'dev_native' into lm_sla_supports_auto

Added igl library files

src/igl/file_dialog_open.cpp

@@ -0,0 +1,87 @@
+// This file is part of libigl, a simple c++ geometry processing library.
+// 
+// Copyright (C) 2014 Daniele Panozzo <daniele.panozzo@gmail.com>
+// 
+// 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/.
+#include "file_dialog_open.h"
+#include <cstdio>
+#include <cstring>
+
+#ifdef _WIN32
+  #include <windows.h>
+  #undef max
+  #undef min
+  
+  #include <Commdlg.h>
+#endif
+
+IGL_INLINE std::string igl::file_dialog_open()
+{
+  const int FILE_DIALOG_MAX_BUFFER = 1024;
+  char buffer[FILE_DIALOG_MAX_BUFFER];
+  
+#ifdef __APPLE__
+  // For apple use applescript hack
+  FILE * output = popen(
+    "osascript -e \""
+    "   tell application \\\"System Events\\\"\n"
+    "           activate\n"
+    "           set existing_file to choose file\n"
+    "   end tell\n"
+    "   set existing_file_path to (POSIX path of (existing_file))\n"
+    "\" 2>/dev/null | tr -d '\n' ","r");
+  while ( fgets(buffer, FILE_DIALOG_MAX_BUFFER, output) != NULL )
+  {
+  }
+#elif defined _WIN32
+  
+  // Use native windows file dialog box
+  // (code contributed by Tino Weinkauf)
+
+  OPENFILENAME ofn;       // common dialog box structure
+  char szFile[260];       // buffer for file name
+
+  // Initialize OPENFILENAME
+  ZeroMemory(&ofn, sizeof(ofn));
+  ofn.lStructSize = sizeof(ofn);
+  ofn.hwndOwner = NULL;
+  ofn.lpstrFile = new char[100];
+  // Set lpstrFile[0] to '\0' so that GetOpenFileName does not 
+  // use the contents of szFile to initialize itself.
+  ofn.lpstrFile[0] = '\0';
+  ofn.nMaxFile = sizeof(szFile);
+  ofn.lpstrFilter = "*.*\0";//off\0*.off\0obj\0*.obj\0mp\0*.mp\0";
+  ofn.nFilterIndex = 1;
+  ofn.lpstrFileTitle = NULL;
+  ofn.nMaxFileTitle = 0;
+  ofn.lpstrInitialDir = NULL;
+  ofn.Flags = OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST;
+
+  // Display the Open dialog box. 
+  int pos = 0;
+  if (GetOpenFileName(&ofn)==TRUE)
+  {
+    while(ofn.lpstrFile[pos] != '\0')
+    {
+      buffer[pos] = (char)ofn.lpstrFile[pos];
+      pos++;
+    }
+  } 
+  buffer[pos] = 0;
+#else
+  
+  // For linux use zenity
+  FILE * output = popen("/usr/bin/zenity --file-selection","r");
+  while ( fgets(buffer, FILE_DIALOG_MAX_BUFFER, output) != NULL )
+  {
+  }
+  
+  if (strlen(buffer) > 0)
+  {
+    buffer[strlen(buffer)-1] = 0;
+  }
+#endif
+  return std::string(buffer);
+}