canvas/source/java/CanvasClonedSprite.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.geom.*;
  37
  38 public class CanvasClonedSprite
  39     extends com.sun.star.lib.uno.helper.ComponentBase
  40     implements com.sun.star.rendering.XSprite,
  41                 com.sun.star.lang.XServiceInfo,
  42                 SpriteBase
  43 {
  44     private JavaCanvas                                          canvas;
  45     private double                                                      alpha;
  46     private java.awt.geom.Point2D.Double        outputPosition;
  47     private SpriteRep                                           spriteRep;
  48     private SpriteBase                                          original;
  49
  50     //----------------------------------------------------------------------------------
  51
  52     public CanvasClonedSprite( JavaCanvas       _canvas,
  53                                XSprite          _original )
  54     {
  55         CanvasUtils.printLog( "CanvasClonesSprite constructor called!" );
  56
  57         canvas = _canvas;
  58
  59         if( _original instanceof SpriteBase )
  60         {
  61             original = (SpriteBase)_original;
  62         }
  63
  64         alpha              = 0.0;
  65         outputPosition = new java.awt.geom.Point2D.Double(0.0,0.0);
  66
  67         // TODO: throw on error here!
  68     }
  69
  70     //----------------------------------------------------------------------------------
  71
  72     //
  73     // SpriteBase
  74     // ==========
  75     //
  76     public SpriteRep getSpriteRep()
  77     {
  78         if( spriteRep == null )
  79         {
  80             spriteRep = new SpriteRep( original.getSpriteRep() );
  81
  82             spriteRep.moveSprite( outputPosition );
  83             spriteRep.setSpriteAlpha( alpha );
  84
  85             // TODO: Check for spriteRep.buffer != null here, throw otherwise
  86         }
  87         return spriteRep;
  88     }
  89
  90     //----------------------------------------------------------------------------------
  91
  92     //
  93     // XComponent
  94     // ==========
  95     //
  96     public void dispose()
  97     {
  98         canvas = null;
  99         spriteRep = null;
 100         original = null;
 101
 102         super.dispose();
 103     }
 104
 105     //----------------------------------------------------------------------------------
 106
 107     //
 108     // XSprite 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         alpha = _alpha;
 120
 121         if( spriteRep != null )
 122         {
 123             spriteRep.setSpriteAlpha( alpha );
 124         }
 125     }
 126
 127     public synchronized void move( RealPoint2D  _aNewPos,
 128                                    ViewState    _viewState,
 129                                    RenderState  _renderState )
 130     {
 131         // transform given point with concatenated transformation
 132         AffineTransform transform = CanvasUtils.ViewConcatRenderTransform( _viewState, _renderState );
 133         transform.transform( new java.awt.geom.Point2D.Double(_aNewPos.X,
 134                                                               _aNewPos.Y),
 135                              outputPosition );
 136
 137         if( spriteRep != null )
 138         {
 139             spriteRep.moveSprite( outputPosition );
 140         }
 141     }
 142
 143     public synchronized void transform( AffineMatrix2D aTransformation ) throws com.sun.star.lang.IllegalArgumentException
 144     {
 145         // TODO
 146     }
 147
 148     public synchronized void clip( XPolyPolygon2D aClip )
 149     {
 150         // TODO
 151     }
 152
 153     public synchronized void show()
 154     {
 155         canvas.showSprite( this );
 156         canvas.updateScreen( false );
 157     }
 158
 159     public synchronized void hide()
 160     {
 161         canvas.hideSprite( this );
 162     }
 163     //----------------------------------------------------------------------------------
 164
 165     private static final String s_implName = "XSprite.java.impl";
 166     private static final String s_serviceName = "com.sun.star.rendering.Sprite";
 167
 168     //----------------------------------------------------------------------------------
 169
 170     //
 171     // XServiceInfo impl
 172     // =================
 173     //
 174     public String getImplementationName()
 175     {
 176         return s_implName;
 177     }
 178
 179     public String [] getSupportedServiceNames()
 180     {
 181         return new String [] { s_serviceName };
 182     }
 183
 184     public boolean supportsService( String serviceName )
 185     {
 186         return serviceName.equals( s_serviceName );
 187     }
 188 }