-/*******************************************************************************\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.participant;\r
-\r
-import java.awt.GraphicsConfiguration;\r
-\r
-import org.simantics.g2d.canvas.ICanvasContext;\r
-import org.simantics.g2d.canvas.impl.AbstractCanvasParticipant;\r
-import org.simantics.g2d.image.Image;\r
-import org.simantics.utils.datastructures.cache.IProvider;\r
-import org.simantics.utils.datastructures.hints.HintContext;\r
-import org.simantics.utils.datastructures.hints.IHintContext.Key;\r
-\r
-/**\r
- * Utility participant used for acquiring and storing symbols.\r
- * \r
- * //@deprecated\r
- * //TODO: Toni, explain why this is deprecated ??\r
- * @author Toni Kalajainen\r
- */\r
-public class SymbolUtil extends AbstractCanvasParticipant {\r
-\r
- static class SymbolKey extends Key {\r
- public final IProvider<Image> provider;\r
- public final GraphicsConfiguration gc;\r
- private final int hash;\r
- public SymbolKey(GraphicsConfiguration gc,\r
- IProvider<Image> provider) {\r
- assert(gc!=null && provider!=null);\r
- this.gc = gc;\r
- this.provider = provider;\r
- this.hash = gc.hashCode() ^provider.hashCode();\r
- }\r
- @Override\r
- public boolean equals(Object obj) {\r
- if (!(obj instanceof SymbolKey)) return false;\r
- SymbolKey other = (SymbolKey) obj;\r
- if (!other.provider.equals(provider)) return false;\r
- if (!other.gc.equals(gc)) return false;\r
- return true;\r
- }\r
- @Override\r
- public int hashCode() {\r
- return hash;\r
- }\r
- @Override\r
- public boolean isValueAccepted(Object value) {\r
- return value instanceof Image;\r
- }\r
- }\r
-\r
- HintContext hintCtx = new HintContext();\r
-\r
- @Override\r
- public void removedFromContext(ICanvasContext ctx) {\r
- hintCtx = null;\r
- super.removedFromContext(ctx);\r
- }\r
-\r
- /**\r
- * Acquire and store symbol.\r
- * \r
- * @param provider\r
- * @param gc\r
- * @return\r
- */\r
- public Image get(IProvider<Image> provider, GraphicsConfiguration gc) {\r
- SymbolKey key = new SymbolKey(gc, provider);\r
- Image ps = hintCtx.getHint(key);\r
- if (ps!=null) return ps;\r
- ps = provider.get();\r
- hintCtx.setHint(key, ps);\r
- return ps;\r
- }\r
-\r
-}\r
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * 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:
+ * VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.g2d.participant;
+
+import java.awt.GraphicsConfiguration;
+
+import org.simantics.g2d.canvas.ICanvasContext;
+import org.simantics.g2d.canvas.impl.AbstractCanvasParticipant;
+import org.simantics.g2d.image.Image;
+import org.simantics.utils.datastructures.cache.IProvider;
+import org.simantics.utils.datastructures.hints.HintContext;
+import org.simantics.utils.datastructures.hints.IHintContext.Key;
+
+/**
+ * Utility participant used for acquiring and storing symbols.
+ *
+ * //@deprecated
+ * //TODO: Toni, explain why this is deprecated ??
+ * @author Toni Kalajainen
+ */
+public class SymbolUtil extends AbstractCanvasParticipant {
+
+ static class SymbolKey extends Key {
+ public final IProvider<Image> provider;
+ public final GraphicsConfiguration gc;
+ private final int hash;
+ public SymbolKey(GraphicsConfiguration gc,
+ IProvider<Image> provider) {
+ assert(gc!=null && provider!=null);
+ this.gc = gc;
+ this.provider = provider;
+ this.hash = gc.hashCode() ^provider.hashCode();
+ }
+ @Override
+ public boolean equals(Object obj) {
+ if (!(obj instanceof SymbolKey)) return false;
+ SymbolKey other = (SymbolKey) obj;
+ if (!other.provider.equals(provider)) return false;
+ if (!other.gc.equals(gc)) return false;
+ return true;
+ }
+ @Override
+ public int hashCode() {
+ return hash;
+ }
+ @Override
+ public boolean isValueAccepted(Object value) {
+ return value instanceof Image;
+ }
+ }
+
+ HintContext hintCtx = new HintContext();
+
+ @Override
+ public void removedFromContext(ICanvasContext ctx) {
+ hintCtx = null;
+ super.removedFromContext(ctx);
+ }
+
+ /**
+ * Acquire and store symbol.
+ *
+ * @param provider
+ * @param gc
+ * @return
+ */
+ public Image get(IProvider<Image> provider, GraphicsConfiguration gc) {
+ SymbolKey key = new SymbolKey(gc, provider);
+ Image ps = hintCtx.getHint(key);
+ if (ps!=null) return ps;
+ ps = provider.get();
+ hintCtx.setHint(key, ps);
+ return ps;
+ }
+
+}
Code Review / simantics / platform.git / blobdiff