--- /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.diagram.ui;\r
+\r
+import org.eclipse.core.expressions.PropertyTester;\r
+import org.eclipse.ui.IEditorPart;\r
+import org.simantics.g2d.canvas.Hints;\r
+import org.simantics.g2d.canvas.ICanvasContext;\r
+import org.simantics.g2d.canvas.IToolMode;\r
+import org.simantics.utils.datastructures.hints.IHintContext;\r
+\r
+/**\r
+ * An Eclipse property tester for canvas editor tool mode.\r
+ * \r
+ * @author Tuukka Lehtonen\r
+ */\r
+public class ToolPropertyTester extends PropertyTester {\r
+\r
+ private static final String MODE = "mode";\r
+\r
+ @Override\r
+ public boolean test(Object receiver, final String property, final Object[] args, final Object expectedValue) {\r
+ if (!(receiver instanceof IEditorPart))\r
+ return false;\r
+ IEditorPart editor = (IEditorPart) receiver;\r
+\r
+ if (MODE.equals(property)) {\r
+ ICanvasContext ctx = (ICanvasContext) editor.getAdapter(ICanvasContext.class);\r
+ if (ctx == null)\r
+ return false;\r
+\r
+ IHintContext hints = ctx.getDefaultHintContext();\r
+ IToolMode toolMode = hints.getHint(Hints.KEY_TOOL);\r
+ if (toolMode != null) {\r
+ return toolMode.getId().equals(expectedValue);\r
+ }\r
+ }\r
+ return false;\r
+ }\r
+\r
+}\r