canvas/source/java/BitmapCanvas.java

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  30
  31 // UNO
  32 import com.sun.star.uno.UnoRuntime;
  33 import com.sun.star.uno.XComponentContext;
  34 import com.sun.star.uno.AnyConverter;
  35 import com.sun.star.uno.IQueryInterface;
  36 import com.sun.star.lang.XInitialization;
  37 import com.sun.star.lib.uno.helper.WeakBase;
  38
  39 // OOo AWT
  40 import com.sun.star.awt.*;
  41
  42 // Canvas
  43 import com.sun.star.rendering.*;
  44 import com.sun.star.geometry.*;
  45
  46 // Java AWT
  47 import java.awt.*;
  48 import java.awt.image.*;
  49 import java.awt.geom.*;
  50
  51 public class BitmapCanvas
  52     extends CanvasBase
  53     implements com.sun.star.rendering.XBitmapCanvas,
  54                com.sun.star.lang.XServiceInfo
  55 {
  56     private Graphics2D  graphics;
  57
  58     public Graphics2D getGraphics()
  59     {
  60         return graphics;
  61     }
  62
  63     //----------------------------------------------------------------------------------
  64
  65     public BitmapCanvas( Graphics2D _graphics )
  66     {
  67         graphics = _graphics;
  68     }
  69
  70     //----------------------------------------------------------------------------------
  71
  72     //
  73     // XBitmapCanvas impl
  74     // ==================
  75     //
  76
  77     public synchronized void copyRect( com.sun.star.rendering.XBitmapCanvas     sourceCanvas,
  78                                        com.sun.star.geometry.RealRectangle2D sourceRect,
  79                                        com.sun.star.rendering.ViewState                 sourceViewState,
  80                                        com.sun.star.rendering.RenderState       sourceRenderState,
  81                                        com.sun.star.geometry.RealRectangle2D    destRect,
  82                                        com.sun.star.rendering.ViewState                 destViewState,
  83                                        com.sun.star.rendering.RenderState       destRenderState )
  84     {
  85         // TODO: create temp image when transform is non-trivial
  86
  87         if( sourceCanvas == this )
  88         {
  89             // copy rectangle within the canvas
  90             graphics.copyArea((int)sourceRect.X1,
  91                               (int)sourceRect.Y1,
  92                               (int)(sourceRect.X2 - sourceRect.X1),
  93                               (int)(sourceRect.Y2 - sourceRect.Y1),
  94                               (int)(destRect.X1 - sourceRect.X1),
  95                               (int)(destRect.Y1 - sourceRect.Y1) );
  96         }
  97         else
  98         {
  99             if( sourceCanvas instanceof JavaCanvas )
 100             {
 101                 // cache
 102                 CanvasUtils.setupGraphicsState( graphics, destViewState, destRenderState, CanvasUtils.alsoSetupPaint );
 103
 104                 // TODO: really extract correct source rect here
 105                 BufferedImage backBuffer = ((BufferedGraphics2D)((JavaCanvas)sourceCanvas).getGraphics()).getBackBuffer();
 106                 graphics.drawImage( backBuffer, 0, 0, null );
 107                 CanvasUtils.postRenderImageTreatment( backBuffer );
 108
 109             }
 110             // TODO: foreign canvas
 111         }
 112     }
 113
 114     //----------------------------------------------------------------------------------
 115
 116     private static final String s_implName = "XBitmapCanvas.java.impl";
 117     private static final String s_serviceName = "com.sun.star.rendering.BitmapCanvas";
 118
 119     //----------------------------------------------------------------------------------
 120
 121     //
 122     // XServiceInfo impl
 123     // =================
 124     //
 125     public String getImplementationName()
 126     {
 127         return s_implName;
 128     }
 129
 130     public String [] getSupportedServiceNames()
 131     {
 132         return new String [] { s_serviceName };
 133     }
 134
 135     public boolean supportsService( String serviceName )
 136     {
 137         return serviceName.equals( s_serviceName );
 138     }
 139 }