--- /dev/null
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ * VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.g2d.image.impl;\r
+\r
+import java.awt.Color;\r
+import java.awt.Graphics2D;\r
+import java.awt.GraphicsConfiguration;\r
+import java.awt.RenderingHints;\r
+import java.awt.Shape;\r
+import java.awt.Transparency;\r
+import java.awt.geom.Rectangle2D;\r
+import java.awt.image.VolatileImage;\r
+\r
+import org.simantics.g2d.image.Image;\r
+\r
+/**\r
+ * Video-ram cache suitable for rasterized PaintableSymbols.\r
+ * \r
+ * @see VRamImage\r
+ * @author Toni Kalajainen\r
+ */\r
+public class VRamBufferedImage extends ImageProxy {\r
+\r
+ Shape outline;\r
+ final GraphicsConfiguration gc;\r
+ VolatileImage image;\r
+ int wid, hei;\r
+\r
+ public VRamBufferedImage(Image original, GraphicsConfiguration gc) {\r
+ super(original);\r
+ assert(gc!=null);\r
+ this.gc = gc;\r
+ Rectangle2D bounds = original.getBounds();\r
+ wid = (int) Math.ceil( bounds.getWidth() );\r
+ hei = (int) Math.ceil( bounds.getHeight() );\r
+ }\r
+\r
+ synchronized VolatileImage restore()\r
+ {\r
+ if (image==null) {\r
+ image = gc.createCompatibleVolatileImage(\r
+ wid, hei,\r
+ Transparency.TRANSLUCENT);\r
+ }\r
+ int validateResult = image.validate(gc);\r
+ if (validateResult == VolatileImage.IMAGE_INCOMPATIBLE)\r
+ return null;\r
+\r
+ if (validateResult == VolatileImage.IMAGE_OK)\r
+ return image;\r
+\r
+ if (validateResult == VolatileImage.IMAGE_RESTORED /*raster.contentsLost()*/) {\r
+ Rectangle2D bounds = source.getBounds();\r
+ outline = source.getOutline();\r
+ Graphics2D target = image.createGraphics();\r
+ target.setBackground(new Color(255,255,255,0));\r
+ target.clearRect(0, 0, image.getWidth(), image.getHeight());\r
+ target.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);\r
+ target.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);\r
+ target.setRenderingHint(RenderingHints.KEY_ALPHA_INTERPOLATION, RenderingHints.VALUE_ALPHA_INTERPOLATION_QUALITY);\r
+ target.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);\r
+ target.translate(-bounds.getMinX(), -bounds.getMinY());\r
+ source.init(null);//new GraphicsContextImpl(new Rectangle2D.Double(0,0, image.getWidth(), image.getHeight()), null) );\r
+ target.dispose();\r
+ return image;\r
+ }\r
+ return null;\r
+ }\r
+\r
+ @Override\r
+ public int hashCode() {\r
+ return gc.hashCode() ^source.hashCode();\r
+ }\r
+\r
+ @Override\r
+ public boolean equals(Object obj) {\r
+ if (!(obj instanceof VRamBufferedImage)) return false;\r
+ VRamBufferedImage o = (VRamBufferedImage) obj;\r
+ return o.gc == gc && o.source.equals(source);\r
+ }\r
+\r
+ public Image getSource() {\r
+ return source;\r
+ }\r
+\r
+ public GraphicsConfiguration getGraphicsConfiguration() {\r
+ return gc;\r
+ }\r
+\r
+}\r