old-autovect-branch/libjava/classpath/gnu/java/awt/peer/qt/QPainterPath.java

   1 /* QPainterPath.java --
   2    Copyright (C)  2005  Free Software Foundation, Inc.
   3
   4 This file is part of GNU Classpath.
   5
   6 GNU Classpath is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU Classpath is distributed in the hope that it will be useful, but
  12 WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU Classpath; see the file COPYING.  If not, write to the
  18 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19 02110-1301 USA.
  20
  21 Linking this library statically or dynamically with other modules is
  22 making a combined work based on this library.  Thus, the terms and
  23 conditions of the GNU General Public License cover the whole
  24 combination.
  25
  26 As a special exception, the copyright holders of this library give you
  27 permission to link this library with independent modules to produce an
  28 executable, regardless of the license terms of these independent
  29 modules, and to copy and distribute the resulting executable under
  30 terms of your choice, provided that you also meet, for each linked
  31 independent module, the terms and conditions of the license of that
  32 module.  An independent module is a module which is not derived from
  33 or based on this library.  If you modify this library, you may extend
  34 this exception to your version of the library, but you are not
  35 obligated to do so.  If you do not wish to do so, delete this
  36 exception statement from your version. */
  37
  38 package gnu.java.awt.peer.qt;
  39
  40 import java.awt.Shape;
  41 import java.awt.geom.AffineTransform;
  42 import java.awt.geom.PathIterator;
  43 import java.awt.geom.GeneralPath;
  44
  45 /**
  46  * A simple wrapper class for a QPainterPath,
  47  * createable from an AWT Shape
  48  */
  49 public class QPainterPath extends NativeWrapper
  50 {
  51   QPainterPath()
  52   {
  53   }
  54
  55   public QPainterPath( Shape s )
  56   {
  57     PathIterator pi = s.getPathIterator( new AffineTransform() );
  58     double[] coords = new double[6];
  59
  60     init( pi.getWindingRule() );
  61
  62     while( !pi.isDone() )
  63       {
  64         switch( pi.currentSegment(coords) )
  65           {
  66           case PathIterator.SEG_MOVETO:
  67             moveTo( coords[0], coords[1] );
  68             break;
  69
  70           case PathIterator.SEG_CLOSE:
  71             close();
  72             break;
  73
  74           case PathIterator.SEG_LINETO:
  75             lineTo( coords[0], coords[1] );
  76             break;
  77
  78           case PathIterator.SEG_QUADTO:
  79             quadTo( coords[0], coords[1], coords[2], coords[3] );
  80             break;
  81
  82           case PathIterator.SEG_CUBICTO:
  83             cubicTo( coords[0], coords[1],
  84                      coords[2], coords[3],
  85                      coords[4], coords[5] );
  86             break;
  87           }
  88         pi.next();
  89       }
  90   }
  91
  92   /**
  93    * Constructor for rectangles.
  94    */
  95   public QPainterPath( double x, double y, double w, double h )
  96   {
  97     init(PathIterator.WIND_EVEN_ODD);
  98     moveTo( x, y );
  99     lineTo( x + w, y );
 100     lineTo( x + w, y + h );
 101     lineTo( x , y + h );
 102     lineTo( x, y );
 103     close();
 104   }
 105
 106   /**
 107    * Constructor for lines.
 108    */
 109   public QPainterPath( double x1, double y1, double x2, double y2, boolean s )
 110   {
 111     init(PathIterator.WIND_EVEN_ODD);
 112     moveTo( x1, y1 );
 113     lineTo( x2, y2 );
 114   }
 115
 116   /**
 117    * Returns the QPainterPath as a GeneralPath
 118    */
 119   public native GeneralPath getPath();
 120
 121   private native void init(int windingRule);
 122
 123   private native void moveTo(double x, double y);
 124
 125   private native void close();
 126
 127   private native void lineTo(double x, double y);
 128
 129   private native void quadTo(double x1, double y1, double x2, double y2);
 130
 131   private native void cubicTo(double x1, double y1, double x2, double y2,
 132                               double x3, double y3);
 133
 134   public native void dispose();
 135
 136   public void finalize()
 137   {
 138     dispose();
 139   }
 140 }
 141