Fung-Calc

00001 /***************************************************************************
00002                           fgccreator.cpp  -  description
00003                              -------------------
00004     begin                : Sun Jun 29 12:20:08 PDT 2003
00005     copyright            : (C) 2003 by Fungmeista
00006     email                : mizunoami44@users.sourceforge.net
00007  ***************************************************************************/
00008 
00009 /***************************************************************************
00010  *                                                                         *
00011  *   This program is free software; you can redistribute it and/or modify  *
00012  *   it under the terms of the GNU General Public License as published by  *
00013  *   the Free Software Foundation; either version 2 of the License, or     *
00014  *   (at your option) any later version.                                   *
00015  *                                                                         *
00016  ***************************************************************************/
00017 
00018 #include "fgccreator.h"
00019 
00020 #include <qimage.h>
00021 //#include <qapplication.h>
00022 //#include <qvbox.h>
00023 
00024 #include "functiongraph.h"
00025 #include "polargraph.h"
00026 #include "parametricgraph.h"
00027 #include "densityplot.h"
00028 #include "statplotgraph.h"
00029 #include "glfunctiongraph.h"
00030 #include "glpolargraph.h"
00031 #include "glcylindricalgraph.h"
00032 
00033 #include "loader.h"
00034 
00035 extern "C"
00036 {
00037     ThumbCreator *new_creator()
00038     {
00039         return new FGCCreator;
00040     }
00041 };
00042 
00043 bool FGCCreator::create(const QString &path, int width, int height, QImage &img)
00044 {
00045     std::ifstream fileInput(path);
00046     if (fileInput.bad())
00047         return false;
00048 
00049     CommonGraph *graph = 0;
00050 
00051     char str[256];
00052     while ((fileInput>>str) != 0)
00053     {
00054         if (strcmp(str,"[FunctionGraph]") == 0)
00055         {
00056             qDebug("Loading Function Graph");
00057             graph = new FunctionGraph;
00058         }
00059         if (strcmp(str,"[PolarGraph]") == 0)
00060         {
00061             qDebug("Loading Polar Graph");
00062             graph = new PolarGraph;
00063         }
00064         if (strcmp(str,"[ParametricGraph]") == 0)
00065         {
00066             qDebug("Loading Parametric Graph");
00067             graph = new ParametricGraph;
00068         }
00069         if (strcmp(str,"[StatPlotGraph]") == 0)
00070         {
00071             qDebug("Loading Stat Plot Graph");
00072             graph = new StatPlotGraph;
00073         }
00074         if (strcmp(str,"[DensityPlot]") == 0)
00075         {
00076             qDebug("Loading Density Plot");
00077             graph = new DensityPlot;
00078         }
00079         #ifdef GLGRAPH
00080         if (strcmp(str,"[3DFunctionGraph]") == 0)
00081         {
00082             qDebug("Loading 3D Function Graph");
00083             graph = new GLFunctionGraph;
00084         }
00085         if (strcmp(str,"[3DPolarGraph]") == 0)
00086         {
00087             qDebug("Loading 3D Polar Graph");
00088             graph = new GLPolarGraph;
00089         }
00090         if (strcmp(str,"[3DCylindricalGraph]") == 0)
00091         {
00092             qDebug("Loading 3D Cylindrical Graph");
00093             graph = new GLCylindricalGraph;
00094         }
00095         #endif //GLGRAPH
00096 
00097         if ( graph )
00098         {
00099             graph->load(fileInput);
00100             break; //we found the first graph in the file, so stop
00101         }
00102         }
00103 
00104     if (!graph) //didn't find a graph in the file
00105         return false;
00106 
00107     if (dynamic_cast<Animator*>(graph))
00108         dynamic_cast<Animator*>(graph)->setDisplayAnimatorValue(false);
00109 
00110     graph->setScale(false);
00111 
00112     ExpressionGraph* e_graph;
00113     GLExpressionGraph* gle_graph;
00114     if ( (e_graph = dynamic_cast<ExpressionGraph*>(graph)) )
00115     {
00116         e_graph->setDisplayExpressionText(false);
00117         e_graph->offscreenResize(width,height);
00118     }
00119     else if ( (gle_graph = dynamic_cast<GLExpressionGraph*>(graph)) )
00120     {
00121         gle_graph->resize(width,height);
00122     }
00123 
00124     QPixmap pm(width,height);
00125     graph->getPixmap(pm);
00126     delete graph;
00127 
00128     img = pm.convertToImage();
00129 
00130     return true;
00131 }
00132 
00133 ThumbCreator::Flags FGCCreator::flags() const
00134 {
00135     return static_cast<Flags>(DrawFrame|BlendIcon);
00136 }