X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.g2d%2Fsrc%2Forg%2Fsimantics%2Fg2d%2Fchassis%2FAbstractChassis.java;fp=bundles%2Forg.simantics.g2d%2Fsrc%2Forg%2Fsimantics%2Fg2d%2Fchassis%2FAbstractChassis.java;h=f6b896db13b99870184fcd18f19ac94e0945a819;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

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