Migrated source code from Simantics SVN

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

diff --git a/bundles/org.simantics.g2d/src/org/simantics/g2d/chassis/AbstractChassis.java b/bundles/org.simantics.g2d/src/org/simantics/g2d/chassis/AbstractChassis.java
new file mode 100644 (file)
index 0000000..f6b896d
--- /dev/null
+++ b/bundles/org.simantics.g2d/src/org/simantics/g2d/chassis/AbstractChassis.java
@@ -0,0 +1,70 @@
+/*******************************************************************************\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.chassis;\r
+\r
+import org.simantics.g2d.canvas.ICanvasContext;\r
+import org.simantics.utils.datastructures.hints.HintContext;\r
+import org.simantics.utils.datastructures.hints.IHintContext;\r
+import org.simantics.utils.threads.IThreadWorkQueue;\r
+import org.simantics.utils.threads.SyncListenerList;\r
+\r
+/**\r
+ * @author Toni Kalajainen\r
+ */\r
+public abstract class AbstractChassis implements ICanvasChassis {\r
+\r
+    /** Hint context */\r
+    protected IHintContext                        hintCtx   = new HintContext();\r
+    \r
+    protected SyncListenerList<IChassisListener>  listeners = new SyncListenerList<IChassisListener>(IChassisListener.class);\r
+    \r
+    protected ICanvasContext                      canvasContext;\r
+    \r
+    public void setCanvasContext(ICanvasContext canvasContext) {\r
+        assert (this.canvasContext == null);\r
+        assert (canvasContext != null);\r
+        this.canvasContext = canvasContext;\r
+        // Create canvas context and a layer of interactors\r
+        canvasContext.getHintStack().addHintContext(hintCtx, 0);\r
+    }\r
+    \r
+    @Override\r
+    public ICanvasContext getCanvasContext() {\r
+        return canvasContext;\r
+    }\r
+    \r
+    @Override\r
+    public void addChassisListener(IThreadWorkQueue thread, IChassisListener listener) {\r
+        listeners.add(thread, listener);\r
+    }\r
+\r
+    @Override\r
+    public void removeChassisListener(IThreadWorkQueue thread, IChassisListener listener) {\r
+        listeners.remove(thread, listener);\r
+    }\r
+\r
+    @Override\r
+    public void addChassisListener(IChassisListener listener) {\r
+        listeners.add(listener);\r
+    }\r
+\r
+    @Override\r
+    public void removeChassisListener(IChassisListener listener) {\r
+        listeners.remove(listener);\r
+    }    \r
+\r
+    @Override\r
+    public IHintContext getHintContext() {\r
+        return hintCtx;\r
+    }\r
+    \r
+}\r