Examples of org.eclipse.swt.graphics.Image

org.eclipse.swt.graphics.Image
his point, rgbs contains specifications of all // the colors contained within this image. You may // allocate as many of these colors as you wish by // using the Color constructor Color(RGB), then // create the image: Image i = new Image(device, data);
Applications which require even greater control over the image loading process should use the support provided in class ImageLoader.
Application code must explicitly invoke the Image.dispose() method to release the operating system resources managed by each instance when those instances are no longer required.
@see Color @see ImageData @see ImageLoader @see Image snippets @see SWT Examples: GraphicsExample, ImageAnalyzer @see Sample code and further information

      return imageLeft;
    }
    if (imageLeftID == null) {
      return null;
    }
    Image img = null;
    if (suffix == null) {
      img = ImageLoader.getInstance().getImage(imageLeftID);
    } else {
      img = ImageLoader.getInstance().getImage(imageLeftID + suffix);
    }

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          {
            if ( instance instanceof UISWTInstance ){
              
              UISWTInstance  swt = (UISWTInstance)instance;
              
              Image  image = swt.loadImage( "com/aelitis/azureus/plugins/magnet/icons/magnet.gif" );


              menu1.setGraphic( swt.createGraphic( image ));
              menu2.setGraphic( swt.createGraphic( image ));              
            }
          }

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    }
    cell.setFillCell(true);
  }


  public void dispose(TableCell cell) {
    Image img = ((TableCellSWT) cell).getGraphicSWT();
    if (img != null && !img.isDisposed())
      img.dispose();
  }

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    if (x1 < 10 || y1 < 3) {
      dispose(cell);
      cell.setGraphic(null);
      return;
    }
    Image image = new Image(SWTThread.getInstance().getDisplay(), newWidth,
        newHeight);
    Color color;
    GC gcImage = new GC(image);
    gcImage.setForeground(Colors.grey);
    gcImage.drawRectangle(0, 0, x1 + 1, y1 + 1);
    int blocksPerPixel = 0;
    int iPixelsPerBlock = 0;
    int pxRes = 0;
    long pxBlockStep = 0;
    int factor = 4;


    while (iPixelsPerBlock <= 0) {
      blocksPerPixel++;
      iPixelsPerBlock = (int) ((x1 + 1) / (lNumBlocks / blocksPerPixel));
    }


    pxRes = (int) (x1 - ((lNumBlocks / blocksPerPixel) * iPixelsPerBlock)); // kolik mi zbyde
    if (pxRes <= 0)
      pxRes = 1;
    pxBlockStep = (lNumBlocks * factor) / pxRes; // kolikaty blok na +1 k sirce
    long addBlocks = (lNumBlocks * factor) / pxBlockStep;
    if ((addBlocks * iPixelsPerBlock) > pxRes)
      pxBlockStep += 1;


    /*      String msg = "iPixelsPerBlock = "+iPixelsPerBlock + ", blocksPerPixel = " + blocksPerPixel;
          msg += ", pxRes = " + pxRes + ", pxBlockStep = " + pxBlockStep + ", addBlocks = " + addBlocks + ", x1 = " + x1;
          Debug.out(msg);*/


    TOTorrent torrent = pePiece.getManager().getDiskManager().getTorrent();


    boolean[] written = pePiece.getDMPiece().getWritten();
    boolean piece_written = pePiece.isWritten();
    int drawnWidth = 0;
    int blockStep = 0;


    int pieceNumber = pePiece.getPieceNumber();
    long[] offsets = new long[(int) lNumBlocks];
    long[] lengths = (long[]) offsets.clone();
    Arrays.fill(offsets,
        (long) pePiece.getManager().getDiskManager().getPieceLength()
            * (long) pieceNumber);
    for (int i = 0; i < lNumBlocks; lengths[i] = pePiece.getBlockSize(i), offsets[i] += DiskManager.BLOCK_SIZE * i, i++)
      ;


    boolean[] isCached = cacheStats == null ? null
        : cacheStats.getBytesInCache(torrent, offsets, lengths);


    for (int i = 0; i < lNumBlocks; i += blocksPerPixel) {
      int nextWidth = iPixelsPerBlock;


      blockStep += blocksPerPixel * factor;
      if (blockStep >= pxBlockStep) { // pokud jsem prelezl dany pocet bloku, zvys tomuhle sirku
        nextWidth += (int) (blockStep / pxBlockStep);
        blockStep -= pxBlockStep;
      }


      if (i >= lNumBlocks - blocksPerPixel) { // pokud je posledni, at zasahuje az na konec
        nextWidth = x1 - drawnWidth;
      }
      color = Colors.white;


      if ((written == null && piece_written) || (written != null && written[i])) {


        color = colors[COLOR_WRITTEN];


      } else if (pePiece.isDownloaded(i)) {


        color = colors[COLOR_DOWNLOADED];


      } else if (pePiece.isRequested(i)) {


        color = colors[COLOR_REQUESTED];
      }


      gcImage.setBackground(color);
      gcImage.fillRectangle(drawnWidth + 1, 1, nextWidth, y1);


      if (isCached[i]) {
        gcImage.setBackground(colors[COLOR_INCACHE]);
        gcImage.fillRectangle(drawnWidth + 1, 1, nextWidth, 3);


      }


      drawnWidth += nextWidth;


    }
    gcImage.dispose();
    
    Image oldImage = null;
    Graphic graphic = cell.getGraphic();
    if (graphic instanceof UISWTGraphic) {
      oldImage = ((UISWTGraphic)graphic).getImage();
    }


    if (cell instanceof TableCellSWT) {
      ((TableCellSWT) cell).setGraphic(image);
    } else {
      cell.setGraphic(new UISWTGraphicImpl(image));
    }
    if (oldImage != null && !oldImage.isDisposed())
      oldImage.dispose();


    gcImage.dispose();
  }

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        return;      
      
      if(bufferScale != null && ! bufferScale.isDisposed())
        bufferScale.dispose();
      
      bufferScale = new Image(drawCanvas.getDisplay(),bounds);
      
      GC gcBuffer = new GC(bufferScale);
      try {
      gcBuffer.drawImage(bufferBackground,0,0);
      gcBuffer.setForeground(Colors.black);

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      //If bufferedImage is not null, dispose it
      if(bufferImage != null && ! bufferImage.isDisposed())
        bufferImage.dispose();
      
      bufferImage = new Image(drawCanvas.getDisplay(),bounds);
      
      GC gcImage = new GC(bufferImage);
      
      gcImage.drawImage(bufferScale,0,0);

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  public static void main (String [] args) {
    Display display = new Display ();
    Image[] images = new Image[IMAGES_TO_CREATE];
    for(int i = 0 ; i < IMAGES_TO_CREATE ; i++) {
      images[i] = new Image(display,800,600);
    }
    for(int i = 0 ; i < IMAGES_TO_CREATE ; i++) {
      images[i].dispose();
    }
    display.dispose ();

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      if(bufferBackground != null && ! bufferBackground.isDisposed())
        bufferBackground.dispose();
      
      if(bounds.width > 10000 || bounds.height > 10000) return;
      
      bufferBackground = new Image(drawCanvas.getDisplay(),bounds);
      
      Color colors[] = new Color[4];
      colors[0] = colorWhite;
      colors[1] = lightGrey;
      colors[2] = lightGrey2;

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        is.close();
      } catch (IOException e) {
        Debug.out(e);
      }
        
      return new Image(getDisplay(), imageData);
    }
    
    return null;
  }

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    });
    
  }
  
  private void updateButtonColor(final Display display, final int rV, final int gV, final int bV) {
    Image oldImg = img;
    Color color = ColorCache.getColor(display, rV, gV, bV);
    img = new Image(display,25,10);
    GC gc = new GC(img);
    gc.setBackground(color);
    gc.fillRectangle(0,0,25,10);
    gc.dispose();
    colorChooser.setImage(img);
    if(oldImg != null && ! oldImg.isDisposed())
      oldImg.dispose();
  }

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