X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.g2d%2Fsrc%2Forg%2Fsimantics%2Fg2d%2Fcanvas%2Fimpl%2FDisposedCanvasContext.java;fp=bundles%2Forg.simantics.g2d%2Fsrc%2Forg%2Fsimantics%2Fg2d%2Fcanvas%2Fimpl%2FDisposedCanvasContext.java;h=05d5685cd87682da174b37e11bc28ae8be949f2a;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.g2d/src/org/simantics/g2d/canvas/impl/DisposedCanvasContext.java b/bundles/org.simantics.g2d/src/org/simantics/g2d/canvas/impl/DisposedCanvasContext.java
new file mode 100644
index 000000000..05d5685cd
--- /dev/null
+++ b/bundles/org.simantics.g2d/src/org/simantics/g2d/canvas/impl/DisposedCanvasContext.java
@@ -0,0 +1,238 @@
+/*******************************************************************************
+ * 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.canvas.impl;
+
+import java.util.Collection;
+
+import org.simantics.g2d.canvas.ICanvasContext;
+import org.simantics.g2d.canvas.ICanvasParticipant;
+import org.simantics.g2d.canvas.IContentContext;
+import org.simantics.g2d.canvas.IMouseCaptureContext;
+import org.simantics.g2d.canvas.IMouseCursorContext;
+import org.simantics.g2d.chassis.ITooltipProvider;
+import org.simantics.scenegraph.g2d.G2DParentNode;
+import org.simantics.scenegraph.g2d.G2DSceneGraph;
+import org.simantics.scenegraph.g2d.events.IEventHandlerStack;
+import org.simantics.scenegraph.g2d.events.IEventQueue;
+import org.simantics.utils.datastructures.context.IContextListener;
+import org.simantics.utils.datastructures.disposable.DisposeState;
+import org.simantics.utils.datastructures.disposable.IDisposeListener;
+import org.simantics.utils.datastructures.hints.IHintContext;
+import org.simantics.utils.datastructures.hints.IHintStack;
+import org.simantics.utils.threads.IThreadWorkQueue;
+
+/**
+ * A dummy implementation of ICanvasContext that is immediately marked disposed.
+ * Can be used in situations where the disposedness of an ICanvasContext is used
+ * for (transient) life-cycle management.
+ * 
+ * @author Tuukka Lehtonen
+ */
+public class DisposedCanvasContext implements ICanvasContext {
+
+    public static final DisposedCanvasContext INSTANCE = new DisposedCanvasContext();
+
+    @Override
+    public G2DParentNode getCanvasNode() {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public IContentContext getContentContext() {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public IHintContext getDefaultHintContext() {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public IEventHandlerStack getEventHandlerStack() {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public IEventQueue getEventQueue() {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public IHintStack getHintStack() {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public IMouseCaptureContext getMouseCaptureContext() {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public IMouseCursorContext getMouseCursorContext() {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public G2DSceneGraph getSceneGraph() {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public IThreadWorkQueue getThreadAccess() {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void setCanvasNode(G2DParentNode node) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void setContentContext(IContentContext ctx) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void setMouseCaptureContext(IMouseCaptureContext mctx) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void setMouseCursorContext(IMouseCursorContext mctx) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public boolean isLocked() {
+        return false;
+    }
+
+    @Override
+    public void setLocked(boolean locked) {
+    }
+
+    @Override
+    public void add(ICanvasParticipant item) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void addContextListener(IContextListener<ICanvasParticipant> listener) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void addContextListener(IThreadWorkQueue thread, IContextListener<ICanvasParticipant> listener) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void clear() {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public boolean contains(ICanvasParticipant item) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public <R> boolean containsItemByClass(Class<R> clazz) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public <R extends ICanvasParticipant> R getAtMostOneItemOfClass(Class<R> clazz) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public <R extends ICanvasParticipant> Collection<R> getItemsByClass(Class<R> clazz) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public <R extends ICanvasParticipant> R getSingleItem(Class<R> clazz) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public boolean remove(ICanvasParticipant item) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void removeContextListener(IContextListener<ICanvasParticipant> listener) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void removeContextListener(IThreadWorkQueue thread, IContextListener<ICanvasParticipant> listener) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public ICanvasParticipant[] toArray() {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void addDisposeListener(IDisposeListener listener) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void addDisposeListener(IDisposeListener listener, IThreadWorkQueue thread) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void dispose() {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public DisposeState getDisposeState() {
+        return DisposeState.Disposed;
+    }
+
+    @Override
+    public boolean isDisposed() {
+        return true;
+    }
+
+    @Override
+    public void removeDisposeListener(IDisposeListener listener) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void removeDisposeListener(IDisposeListener listener, IThreadWorkQueue thread) {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void safeDispose() {
+        throw new UnsupportedOperationException();
+    }
+
+	@Override
+	public ITooltipProvider getTooltipProvider() {
+        throw new UnsupportedOperationException();
+	}
+
+	@Override
+	public void setTooltipProvider(ITooltipProvider tooltipProvider) {
+        throw new UnsupportedOperationException();
+	}
+
+}