bundles/org.simantics.g2d/src/org/simantics/g2d/canvas/impl/DisposedCanvasContext.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.g2d.canvas.impl;
  13
  14 import java.util.Collection;
  15
  16 import org.simantics.g2d.canvas.ICanvasContext;
  17 import org.simantics.g2d.canvas.ICanvasParticipant;
  18 import org.simantics.g2d.canvas.IContentContext;
  19 import org.simantics.g2d.canvas.IMouseCaptureContext;
  20 import org.simantics.g2d.canvas.IMouseCursorContext;
  21 import org.simantics.g2d.chassis.ITooltipProvider;
  22 import org.simantics.scenegraph.g2d.G2DParentNode;
  23 import org.simantics.scenegraph.g2d.G2DSceneGraph;
  24 import org.simantics.scenegraph.g2d.events.IEventHandlerStack;
  25 import org.simantics.scenegraph.g2d.events.IEventQueue;
  26 import org.simantics.utils.datastructures.context.IContextListener;
  27 import org.simantics.utils.datastructures.disposable.DisposeState;
  28 import org.simantics.utils.datastructures.disposable.IDisposeListener;
  29 import org.simantics.utils.datastructures.hints.IHintContext;
  30 import org.simantics.utils.datastructures.hints.IHintStack;
  31 import org.simantics.utils.threads.IThreadWorkQueue;
  32
  33 /**
  34  * A dummy implementation of ICanvasContext that is immediately marked disposed.
  35  * Can be used in situations where the disposedness of an ICanvasContext is used
  36  * for (transient) life-cycle management.
  37  *
  38  * @author Tuukka Lehtonen
  39  */
  40 public class DisposedCanvasContext implements ICanvasContext {
  41
  42     public static final DisposedCanvasContext INSTANCE = new DisposedCanvasContext();
  43
  44     @Override
  45     public G2DParentNode getCanvasNode() {
  46         throw new UnsupportedOperationException();
  47     }
  48
  49     @Override
  50     public IContentContext getContentContext() {
  51         throw new UnsupportedOperationException();
  52     }
  53
  54     @Override
  55     public IHintContext getDefaultHintContext() {
  56         throw new UnsupportedOperationException();
  57     }
  58
  59     @Override
  60     public IEventHandlerStack getEventHandlerStack() {
  61         throw new UnsupportedOperationException();
  62     }
  63
  64     @Override
  65     public IEventQueue getEventQueue() {
  66         throw new UnsupportedOperationException();
  67     }
  68
  69     @Override
  70     public IHintStack getHintStack() {
  71         throw new UnsupportedOperationException();
  72     }
  73
  74     @Override
  75     public IMouseCaptureContext getMouseCaptureContext() {
  76         throw new UnsupportedOperationException();
  77     }
  78
  79     @Override
  80     public IMouseCursorContext getMouseCursorContext() {
  81         throw new UnsupportedOperationException();
  82     }
  83
  84     @Override
  85     public G2DSceneGraph getSceneGraph() {
  86         throw new UnsupportedOperationException();
  87     }
  88
  89     @Override
  90     public IThreadWorkQueue getThreadAccess() {
  91         throw new UnsupportedOperationException();
  92     }
  93
  94     @Override
  95     public void setCanvasNode(G2DParentNode node) {
  96         throw new UnsupportedOperationException();
  97     }
  98
  99     @Override
 100     public void setContentContext(IContentContext ctx) {
 101         throw new UnsupportedOperationException();
 102     }
 103
 104     @Override
 105     public void setMouseCaptureContext(IMouseCaptureContext mctx) {
 106         throw new UnsupportedOperationException();
 107     }
 108
 109     @Override
 110     public void setMouseCursorContext(IMouseCursorContext mctx) {
 111         throw new UnsupportedOperationException();
 112     }
 113
 114     @Override
 115     public boolean isLocked() {
 116         return false;
 117     }
 118
 119     @Override
 120     public void setLocked(boolean locked) {
 121     }
 122
 123     @Override
 124     public void add(ICanvasParticipant item) {
 125         throw new UnsupportedOperationException();
 126     }
 127
 128     @Override
 129     public void addContextListener(IContextListener<ICanvasParticipant> listener) {
 130         throw new UnsupportedOperationException();
 131     }
 132
 133     @Override
 134     public void addContextListener(IThreadWorkQueue thread, IContextListener<ICanvasParticipant> listener) {
 135         throw new UnsupportedOperationException();
 136     }
 137
 138     @Override
 139     public void clear() {
 140         throw new UnsupportedOperationException();
 141     }
 142
 143     @Override
 144     public boolean contains(ICanvasParticipant item) {
 145         throw new UnsupportedOperationException();
 146     }
 147
 148     @Override
 149     public <R> boolean containsItemByClass(Class<R> clazz) {
 150         throw new UnsupportedOperationException();
 151     }
 152
 153     @Override
 154     public <R extends ICanvasParticipant> R getAtMostOneItemOfClass(Class<R> clazz) {
 155         throw new UnsupportedOperationException();
 156     }
 157
 158     @Override
 159     public <R extends ICanvasParticipant> Collection<R> getItemsByClass(Class<R> clazz) {
 160         throw new UnsupportedOperationException();
 161     }
 162
 163     @Override
 164     public <R extends ICanvasParticipant> R getSingleItem(Class<R> clazz) {
 165         throw new UnsupportedOperationException();
 166     }
 167
 168     @Override
 169     public boolean remove(ICanvasParticipant item) {
 170         throw new UnsupportedOperationException();
 171     }
 172
 173     @Override
 174     public void removeContextListener(IContextListener<ICanvasParticipant> listener) {
 175         throw new UnsupportedOperationException();
 176     }
 177
 178     @Override
 179     public void removeContextListener(IThreadWorkQueue thread, IContextListener<ICanvasParticipant> listener) {
 180         throw new UnsupportedOperationException();
 181     }
 182
 183     @Override
 184     public ICanvasParticipant[] toArray() {
 185         throw new UnsupportedOperationException();
 186     }
 187
 188     @Override
 189     public void addDisposeListener(IDisposeListener listener) {
 190         throw new UnsupportedOperationException();
 191     }
 192
 193     @Override
 194     public void addDisposeListener(IDisposeListener listener, IThreadWorkQueue thread) {
 195         throw new UnsupportedOperationException();
 196     }
 197
 198     @Override
 199     public void dispose() {
 200         throw new UnsupportedOperationException();
 201     }
 202
 203     @Override
 204     public DisposeState getDisposeState() {
 205         return DisposeState.Disposed;
 206     }
 207
 208     @Override
 209     public boolean isDisposed() {
 210         return true;
 211     }
 212
 213     @Override
 214     public void removeDisposeListener(IDisposeListener listener) {
 215         throw new UnsupportedOperationException();
 216     }
 217
 218     @Override
 219     public void removeDisposeListener(IDisposeListener listener, IThreadWorkQueue thread) {
 220         throw new UnsupportedOperationException();
 221     }
 222
 223     @Override
 224     public void safeDispose() {
 225         throw new UnsupportedOperationException();
 226     }
 227
 228         @Override
 229         public ITooltipProvider getTooltipProvider() {
 230         throw new UnsupportedOperationException();
 231         }
 232
 233         @Override
 234         public void setTooltipProvider(ITooltipProvider tooltipProvider) {
 235         throw new UnsupportedOperationException();
 236         }
 237
 238 }