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[simantics/platform.git] / bundles / org.simantics.g2d / src / org / simantics / g2d / diagram / handler / CanvasListener.java
1 /*******************************************************************************\r
2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
3  * in Industry THTH ry.\r
4  * All rights reserved. This program and the accompanying materials\r
5  * are made available under the terms of the Eclipse Public License v1.0\r
6  * which accompanies this distribution, and is available at\r
7  * http://www.eclipse.org/legal/epl-v10.html\r
8  *\r
9  * Contributors:\r
10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
11  *******************************************************************************/\r
12 package org.simantics.g2d.diagram.handler;\r
13 \r
14 import org.simantics.g2d.canvas.ICanvasContext;\r
15 import org.simantics.g2d.diagram.IDiagram;\r
16 \r
17 /**\r
18  * Hooks events of adding / removing diagram to/from canvas.\r
19  * <p>\r
20  * This handler requires DiagramParticipant.\r
21  * <p>\r
22  * Note, diagram may be added to multiple canvases at the same time\r
23  * \r
24  * @author Toni Kalajainen\r
25  */\r
26 public interface CanvasListener extends DiagramHandler {\r
27 \r
28         public void onAddedToCanvas(IDiagram d, ICanvasContext canvas);\r
29         public void onRemovedFromCanvas(IDiagram d, ICanvasContext canvas);\r
30         \r
31 }\r