canvas/source/java/CanvasCustomSprite.java

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  30
  31 // Canvas
  32 import com.sun.star.rendering.*;
  33 import com.sun.star.geometry.*;
  34
  35 // Java AWT
  36 import java.awt.*;
  37 import java.awt.geom.*;
  38
  39 public class CanvasCustomSprite
  40     extends com.sun.star.lib.uno.helper.ComponentBase
  41     implements com.sun.star.rendering.XCustomSprite,
  42                 com.sun.star.lang.XServiceInfo,
  43                 SpriteBase
  44 {
  45     private JavaCanvas                                          canvas;
  46     private RealSize2D                                          spriteSize;
  47     private Graphics2D                                          referenceGraphics;
  48     private double                                                      alpha;
  49     private java.awt.geom.Point2D.Double        outputPosition;
  50     private SpriteRep                                           spriteRep;
  51
  52     //----------------------------------------------------------------------------------
  53
  54     public CanvasCustomSprite( RealSize2D       _spriteSize,
  55                                JavaCanvas       _canvas,
  56                                Graphics2D       _referenceGraphics )
  57     {
  58         CanvasUtils.printLog( "CanvasCustomSprite constructor called, size is (" + _spriteSize.Width + ", " + _spriteSize.Height + ")" );
  59
  60         canvas                          = _canvas;
  61         spriteSize                      = _spriteSize;
  62         referenceGraphics       = _referenceGraphics;
  63         alpha                           = 0.0;
  64         outputPosition          = new java.awt.geom.Point2D.Double(0.0,0.0);
  65     }
  66
  67     //----------------------------------------------------------------------------------
  68
  69     //
  70     // SpriteBase
  71     // ==========
  72     //
  73     public synchronized SpriteRep getSpriteRep()
  74     {
  75         if( spriteRep == null )
  76         {
  77             spriteRep = new SpriteRep();
  78
  79             spriteRep.setupBuffer(referenceGraphics, (int)(spriteSize.Width+.5), (int)(spriteSize.Height+.5) );
  80
  81             spriteRep.moveSprite( outputPosition );
  82             spriteRep.setSpriteAlpha( alpha );
  83         }
  84         return spriteRep;
  85     }
  86
  87     //----------------------------------------------------------------------------------
  88
  89     //
  90     // XComponent
  91     // ==========
  92     //
  93     public void dispose()
  94     {
  95         if( spriteRep != null )
  96             spriteRep.dispose();
  97
  98         canvas = null;
  99         referenceGraphics = null;
 100         spriteRep = null;
 101
 102         super.dispose();
 103     }
 104
 105     //----------------------------------------------------------------------------------
 106
 107     //
 108     // XCustomSprite impl
 109     // ==================
 110     //
 111
 112     public synchronized void setPriority( double nPriority )
 113     {
 114         // TODO
 115     }
 116
 117     public synchronized void setAlpha( double _alpha )
 118     {
 119         CanvasUtils.printLog( "CanvasCustomSprite.setAlpha() called" );
 120
 121         alpha = _alpha;
 122
 123         if( spriteRep != null )
 124         {
 125             spriteRep.setSpriteAlpha( alpha );
 126         }
 127     }
 128
 129     public synchronized void move( RealPoint2D  _aNewPos,
 130                                    ViewState    _viewState,
 131                                    RenderState  _renderState )
 132     {
 133         CanvasUtils.printLog( "CanvasCustomSprite.move() called" );
 134
 135         // transform given point with concatenated transformation
 136         AffineTransform transform = CanvasUtils.ViewConcatRenderTransform( _viewState, _renderState );
 137         transform.transform( new java.awt.geom.Point2D.Double(_aNewPos.X,
 138                                                               _aNewPos.Y),
 139                              outputPosition );
 140
 141         if( spriteRep != null )
 142         {
 143             spriteRep.moveSprite( outputPosition );
 144         }
 145     }
 146
 147     public synchronized void transform( AffineMatrix2D aTransformation ) throws com.sun.star.lang.IllegalArgumentException
 148     {
 149         // TODO
 150     }
 151
 152     public synchronized void clip( XPolyPolygon2D       aClip )
 153     {
 154         // TODO
 155     }
 156
 157     public synchronized void show()
 158     {
 159         CanvasUtils.printLog( "CanvasCustomSprite.show() called" );
 160
 161         canvas.showSprite( this );
 162         canvas.updateScreen( false );
 163     }
 164
 165     public synchronized void hide()
 166     {
 167         CanvasUtils.printLog( "CanvasCustomSprite.hide() called" );
 168
 169         canvas.hideSprite( this );
 170
 171         // do _not_ dispose clear SpriteRep, since we cannot actively
 172         // repaint ourselves
 173     }
 174
 175     public synchronized com.sun.star.rendering.XCanvas getContentCanvas()
 176     {
 177         CanvasUtils.printLog( "CanvasCustomSprite.getContentCanvas() called" );
 178
 179         return getSpriteRep().getContentCanvas();
 180     }
 181
 182     //----------------------------------------------------------------------------------
 183
 184     private static final String s_implName = "XCustomSprite.java.impl";
 185     private static final String s_serviceName = "com.sun.star.rendering.CustomSprite";
 186
 187     //----------------------------------------------------------------------------------
 188
 189     //
 190     // XServiceInfo impl
 191     // =================
 192     //
 193     public String getImplementationName()
 194     {
 195         return s_implName;
 196     }
 197
 198     public String [] getSupportedServiceNames()
 199     {
 200         return new String [] { s_serviceName };
 201     }
 202
 203     public boolean supportsService( String serviceName )
 204     {
 205         return serviceName.equals( s_serviceName );
 206     }
 207 }