| /****************************************************************************** |
| * Copyright (c) 2005, 2006 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| ****************************************************************************/ |
| |
| package org.eclipse.gmf.runtime.draw2d.ui.render.awt.internal.svg; |
| |
| import java.awt.Graphics2D; |
| |
| import org.apache.batik.ext.awt.RenderingHintsKeyExt; |
| import org.eclipse.gmf.runtime.draw2d.ui.figures.FigureUtilities; |
| import org.eclipse.gmf.runtime.draw2d.ui.render.awt.internal.graphics.Graphics2DToGraphicsAdaptor; |
| import org.eclipse.swt.graphics.Color; |
| import org.eclipse.swt.graphics.GC; |
| import org.eclipse.swt.graphics.Image; |
| import org.eclipse.swt.graphics.ImageData; |
| import org.eclipse.swt.graphics.PaletteData; |
| import org.eclipse.swt.graphics.RGB; |
| import org.eclipse.swt.widgets.Display; |
| |
| |
| /** |
| * Image transcoder that will allow direct rendering to an swt <code>GC</code> object through |
| * a delegating class. |
| * |
| * @see Graphics2DToGraphicsAdaptor |
| * |
| * @author sshaw |
| * |
| */ |
| public class SWTImageTranscoder |
| extends ImageTranscoderEx { |
| |
| private Image swtImage = null; |
| |
| public SWTImageTranscoder() { |
| super(); |
| } |
| |
| /** |
| * @return Returns the swtImage. |
| */ |
| public Image getSWTImage() { |
| return swtImage; |
| } |
| |
| private static final RGB TRANSPARENT_COLOR = new RGB(254, 255, 254); |
| private static final RGB REPLACE_TRANSPARENT_COLOR = new RGB(255, 255, 255); |
| |
| private GC swtGC = null; |
| |
| /* |
| * (non-Javadoc) |
| * @see org.eclipse.gmf.runtime.draw2d.ui.render.awt.internal.svg.ImageTranscoderEx#createGraphics(int, int) |
| */ |
| protected Graphics2D createGraphics(int w, int h) { |
| Display display = Display.getDefault(); |
| |
| ImageData imgData = new ImageData(w, h, 24, new PaletteData(0xFF0000, 0xFF00, 0xFF)); |
| imgData.transparentPixel = FigureUtilities.RGBToInteger(TRANSPARENT_COLOR).intValue(); |
| |
| swtImage = new Image(display, imgData); |
| swtGC = new GC(swtImage); |
| |
| Color transparentColor = new Color(null, TRANSPARENT_COLOR); |
| swtGC.setBackground(transparentColor); |
| swtGC.fillRectangle(0, 0, w, h); |
| transparentColor.dispose(); |
| |
| Graphics2D g2d = new Graphics2DToGraphicsAdaptor(swtGC, TRANSPARENT_COLOR, REPLACE_TRANSPARENT_COLOR); |
| // needed to avoid eroneous error being dumped to console |
| g2d.setRenderingHint(RenderingHintsKeyExt.KEY_TRANSCODING, |
| RenderingHintsKeyExt.VALUE_TRANSCODING_PRINTING); |
| |
| return g2d; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * @see org.eclipse.gmf.runtime.draw2d.ui.render.awt.internal.svg.ImageTranscoderEx#postRenderImage(java.awt.Graphics2D) |
| */ |
| protected void postRenderImage(Graphics2D g2d) { |
| super.postRenderImage(g2d); |
| |
| swtGC.dispose(); |
| } |
| |
| } |