Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.g2d / src / org / simantics / g2d / example / chassis / ViewPartExample.java

diff --git a/bundles/org.simantics.g2d/src/org/simantics/g2d/example/chassis/ViewPartExample.java b/bundles/org.simantics.g2d/src/org/simantics/g2d/example/chassis/ViewPartExample.java
new file mode 100644 (file)
index 0000000..b2ce6dc
--- /dev/null
+++ b/bundles/org.simantics.g2d/src/org/simantics/g2d/example/chassis/ViewPartExample.java
@@ -0,0 +1,60 @@
+/*******************************************************************************\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.example.chassis;\r
+\r
+import org.eclipse.swt.widgets.Composite;\r
+import org.eclipse.ui.part.ViewPart;\r
+import org.simantics.g2d.canvas.ICanvasContext;\r
+import org.simantics.g2d.canvas.impl.CanvasContext;\r
+import org.simantics.g2d.chassis.ICanvasChassis;\r
+import org.simantics.g2d.chassis.IChassisListener;\r
+import org.simantics.g2d.chassis.SWTChassis;\r
+import org.simantics.g2d.example.TestCanvas;\r
+import org.simantics.utils.threads.AWTThread;\r
+import org.simantics.utils.threads.IThreadWorkQueue;\r
+import org.simantics.utils.threads.ThreadUtils;\r
+\r
+public class ViewPartExample extends ViewPart {\r
+    SWTChassis c;\r
+\r
+    @Override\r
+    public void createPartControl(Composite parent) {\r
+        c = new SWTChassis(parent, 0);\r
+        c.syncPopulate();\r
+\r
+        IThreadWorkQueue thread = AWTThread.getThreadAccess();\r
+        CanvasContext canvasContext = TestCanvas.createTestCanvas(thread);\r
+\r
+        c.setCanvasContext(canvasContext);\r
+\r
+        c.addChassisListener(new IChassisListener() {\r
+            @Override\r
+            public void chassisClosed(ICanvasChassis sender) {\r
+                // Prevent deadlock while disposing which using syncExec would result in. \r
+                ThreadUtils.asyncExec(c.getCanvasContext().getThreadAccess(), new Runnable() {\r
+                    @Override\r
+                    public void run() {\r
+                        ICanvasContext ctx = c.getCanvasContext();\r
+                        c.getAWTComponent().setCanvasContext(null);\r
+                        ctx.dispose();\r
+                    }\r
+                });\r
+            }\r
+        });\r
+    }\r
+\r
+    @Override\r
+    public void setFocus() {\r
+        c.setFocus();\r
+    }\r
+\r
+}\r