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1 // This may look like C code, but it is really -*- C++ -*-
2 //
3 // Copyright Bob Friesenhahn, 2000, 2001, 2003
4 //
5 // Demo of text annotation with gravity.  Produces an animation showing
6 // the effect of rotated text assize_t with various gravity specifications.
7 //
8 // After running demo program, run 'animate gravity_out.miff' if you
9 // are using X-Windows to see an animated result.
10 //
11 // Concept and algorithms lifted from PerlMagick demo script written
12 // by John Christy.
13 //
14 
15 #include <Magick++.h>
16 #include <string>
17 #include <iostream>
18 #include <list>
19 
20 using namespace std;
21 
22 using namespace Magick;
23 
main(int,char ** argv)24 int main( int /*argc*/, char ** argv)
25 {
26 
27   // Initialize ImageMagick install location for Windows
28   InitializeMagick(*argv);
29 
30   try {
31 
32     string srcdir("");
33     if(getenv("SRCDIR") != 0)
34       srcdir = getenv("SRCDIR");
35 
36     int x = 100;
37     int y = 100;
38 
39     list<Image> animation;
40 
41     Image base( Geometry(600,600), Color("white") );
42     base.depth(8);
43     base.strokeColor("#600");
44     base.fillColor(Color());
45     base.draw( DrawableLine( 300,100, 300,500 ) );
46     base.draw( DrawableLine( 100,300, 500,300 ) );
47     base.draw( DrawableRectangle( 100,100, 500,500 ) );
48     base.density( Point(72,72) );
49     base.strokeColor(Color());
50     base.fillColor("#600");
51     base.fontPointsize( 30 );
52     base.boxColor( "red" );
53     base.animationDelay( 20 );
54     base.compressType( RLECompression );
55 
56     for ( int angle = 0; angle < 360; angle += 30 )
57       {
58         cout << "angle " << angle << endl;
59         Image pic = base;
60         pic.annotate( "NorthWest", Geometry(0,0,x,y), NorthWestGravity, angle );
61         pic.annotate( "North", Geometry(0,0,0,y), NorthGravity, angle );
62         pic.annotate( "NorthEast", Geometry(0,0,x,y), NorthEastGravity, angle );
63         pic.annotate( "East", Geometry(0,0,x,0), EastGravity, angle );
64         pic.annotate( "Center", Geometry(0,0,0,0), CenterGravity, angle );
65         pic.annotate( "SouthEast", Geometry(0,0,x,y), SouthEastGravity, angle );
66         pic.annotate( "South", Geometry(0,0,0,y), SouthGravity, angle );
67         pic.annotate( "SouthWest", Geometry(0,0,x,y), SouthWestGravity, angle );
68         pic.annotate( "West", Geometry(0,0,x,0), WestGravity, angle );
69         animation.push_back( pic );
70       }
71     cout << "Writing image \"gravity_out.miff\" ..." << endl;
72     writeImages( animation.begin(), animation.end(), "gravity_out.miff" );
73     // system( "animate gravity_out.miff" );
74 
75   }
76   catch( exception &error_ )
77     {
78       cout << "Caught exception: " << error_.what() << endl;
79       return 1;
80     }
81 
82   return 0;
83 }
84