granicus.if.org Git - imagemagick/blob - Magick++/demo/piddle.cpp

   1 // This may look like C code, but it is really -*- C++ -*-
   2 //
   3 // Copyright Bob Friesenhahn, 1999, 2000, 2002, 2003
   4 //
   5 // PerlMagick "piddle" demo re-implemented using Magick++ methods.
   6 // The PerlMagick "piddle" demo is written by John Cristy
   7 //
   8
   9 #include <Magick++.h>
  10 #include <string>
  11 #include <iostream>
  12
  13 using namespace std;
  14
  15 using namespace Magick;
  16
  17 int main( int /*argc*/, char ** argv)
  18 {
  19
  20   // Initialize ImageMagick install location for Windows
  21   InitializeMagick(*argv);
  22
  23   try {
  24
  25     string srcdir("");
  26     if(getenv("SRCDIR") != 0)
  27       srcdir = getenv("SRCDIR");
  28
  29     //
  30     // Create a 300x300 white canvas.
  31     //
  32     Image image( "300x300", "white" );
  33
  34     // Drawing list
  35     std::list<Magick::Drawable> drawList;
  36
  37     // Start drawing by pushing a drawing context with specified
  38     // viewbox size
  39     drawList.push_back(DrawablePushGraphicContext());
  40     drawList.push_back(DrawableViewbox(0,0,image.columns(),image.rows()));
  41
  42     //
  43     // Draw blue grid
  44     //
  45     drawList.push_back(DrawableStrokeColor("#ccf"));
  46     for ( int i=0; i < 300; i += 10 )
  47       {
  48         drawList.push_back(DrawableLine(i,0, i,300));
  49         drawList.push_back(DrawableLine(0,i, 300,i));
  50       }
  51
  52     //
  53     // Draw rounded rectangle.
  54     //
  55     drawList.push_back(DrawableFillColor("blue"));
  56     drawList.push_back(DrawableStrokeColor("red"));
  57     drawList.push_back(DrawableRoundRectangle(15,15, 70,70, 10,10));
  58
  59     drawList.push_back(DrawableFillColor("blue"));
  60     drawList.push_back(DrawableStrokeColor("maroon"));
  61     drawList.push_back(DrawableStrokeWidth(4));
  62     drawList.push_back(DrawableRoundRectangle(15,15, 70,70, 10,10));
  63
  64     //
  65     // Draw curve.
  66     //
  67     {
  68       drawList.push_back(DrawableStrokeColor("black"));
  69       drawList.push_back(DrawableStrokeWidth(4));
  70       drawList.push_back(DrawableFillColor(Color()));
  71
  72       std::list<Magick::Coordinate> points;
  73       points.push_back(Coordinate(20,20));
  74       points.push_back(Coordinate(100,50));
  75       points.push_back(Coordinate(50,100));
  76       points.push_back(Coordinate(160,160));
  77       drawList.push_back(DrawableBezier(points));
  78     }
  79
  80     //
  81     // Draw line
  82     //
  83     drawList.push_back(DrawableStrokeColor("red"));
  84     drawList.push_back(DrawableStrokeWidth(1));
  85     drawList.push_back(DrawableLine(10,200, 20,190));
  86
  87     //
  88     // Draw arc within a circle.
  89     //
  90     drawList.push_back(DrawableStrokeColor("black"));
  91     drawList.push_back(DrawableFillColor("yellow"));
  92     drawList.push_back(DrawableStrokeWidth(4));
  93     drawList.push_back(DrawableCircle(160,70, 200,70));
  94
  95     drawList.push_back(DrawableStrokeColor("black"));
  96     drawList.push_back(DrawableFillColor("blue"));
  97     drawList.push_back(DrawableStrokeWidth(4));
  98     {
  99       std::list<VPath> path;
 100       path.push_back(PathMovetoAbs(Coordinate(160,70)));
 101       path.push_back(PathLinetoVerticalRel(-40));
 102       path.push_back(PathArcRel(PathArcArgs(40,40, 0, 0, 0, -40,40)));
 103       path.push_back(PathClosePath());
 104       drawList.push_back(DrawablePath(path));
 105     }
 106
 107     //
 108     // Draw pentogram.
 109     //
 110     {
 111       drawList.push_back(DrawableStrokeColor("red"));
 112       drawList.push_back(DrawableFillColor("LimeGreen"));
 113       drawList.push_back(DrawableStrokeWidth(3));
 114
 115       std::list<Magick::Coordinate> points;
 116       points.push_back(Coordinate(160,120));
 117       points.push_back(Coordinate(130,190));
 118       points.push_back(Coordinate(210,145));
 119       points.push_back(Coordinate(110,145));
 120       points.push_back(Coordinate(190,190));
 121       points.push_back(Coordinate(160,120));
 122       drawList.push_back(DrawablePolygon(points));
 123     }
 124
 125     //
 126     // Draw rectangle.
 127     //
 128     drawList.push_back(DrawableStrokeWidth(5));
 129     drawList.push_back(DrawableFillColor(Color())); // No fill
 130     drawList.push_back(DrawableStrokeColor("yellow"));
 131     drawList.push_back(DrawableLine(200,260, 200,200));
 132     drawList.push_back(DrawableLine(200,200, 260,200));
 133     drawList.push_back(DrawableStrokeColor("red"));
 134     drawList.push_back(DrawableLine(260,200, 260,260));
 135     drawList.push_back(DrawableStrokeColor("green"));
 136     drawList.push_back(DrawableLine(200,260, 260,260));
 137
 138     //
 139     // Draw text.
 140     //
 141     drawList.push_back(DrawableFillColor("green"));
 142     drawList.push_back(DrawableStrokeColor(Color())); // unset color
 143     drawList.push_back(DrawablePointSize(24));
 144     drawList.push_back(DrawableTranslation(30,140));
 145     drawList.push_back(DrawableRotation(45.0));
 146     drawList.push_back(DrawableText(0,0,"This is a test!"));
 147
 148     // Finish drawing by popping back to base context.
 149     drawList.push_back(DrawablePopGraphicContext());
 150
 151     // Draw everything using completed drawing list
 152     //    image.debug(true);
 153     image.draw(drawList);
 154
 155     //     image.write( "piddle.mvg" );
 156
 157     cout << "Writing image \"piddle_out.miff\" ..." << endl;
 158     image.depth( 8 );
 159     image.compressType( RLECompression );
 160     image.write( "piddle_out.miff" );
 161     cout << "Writing MVG metafile \"piddle_out.mvg\" ..." << endl;
 162     image.write( "piddle_out.mvg" );
 163
 164     //     cout << "Display image..." << endl;
 165     //     image.display( );
 166
 167   }
 168   catch( exception &error_ )
 169     {
 170       cout << "Caught exception: " << error_.what() << endl;
 171       return 1;
 172     }
 173
 174   return 0;
 175 }