1 /*******************************************************************************
2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
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
10 * VTT Technical Research Centre of Finland - initial API and implementation
11 *******************************************************************************/
12 package org.simantics.g2d.element.handler.impl;
14 import java.awt.geom.AffineTransform;
15 import java.awt.geom.Rectangle2D;
17 import org.simantics.g2d.element.ElementHints;
18 import org.simantics.g2d.element.IElement;
19 import org.simantics.g2d.element.SceneGraphNodeKey;
20 import org.simantics.g2d.element.handler.Clickable;
21 import org.simantics.g2d.element.handler.Clickable.PressStatus;
22 import org.simantics.g2d.element.handler.SceneGraph;
23 import org.simantics.g2d.element.handler.Togglable;
24 import org.simantics.g2d.image.Image;
25 import org.simantics.scenegraph.Node;
26 import org.simantics.scenegraph.g2d.G2DNode;
27 import org.simantics.scenegraph.g2d.G2DParentNode;
28 import org.simantics.utils.datastructures.hints.IHintContext.Key;
29 import org.simantics.utils.datastructures.hints.IHintListener;
30 import org.simantics.utils.datastructures.hints.IHintObservable;
34 * @author Marko Luukkainen <marko.luukkainen@vtt.fi>
37 public abstract class ResizeableImagePaint implements SceneGraph {
39 private static final long serialVersionUID = 5955540004168283683L;
40 public static final Key KEY_SG_NODE = new SceneGraphNodeKey(Node.class, "RESIZABLE_IMAGE_SG_NODE");
43 public ResizeableImagePaint() {
48 public void init(final IElement e, final G2DParentNode parent) {
49 System.out.println("ResizeableImagePaint.init");
50 Togglable togglable = e.getElementClass().getAtMostOneItemOfClass(Togglable.class);
51 boolean toggled = false;
52 if (togglable != null)
53 toggled = togglable.isChecked(e);
55 Clickable.PressStatus status = null;
56 Clickable clickable = e.getElementClass().getAtMostOneItemOfClass(Clickable.class);
57 status = PressStatus.NORMAL;//clickable.getPressStatus(e, ctx);
59 Image image = getImage(status, toggled);
62 Node node = e.getHint(KEY_SG_NODE);
66 node = image.init(parent);
67 e.setHint(KEY_SG_NODE, node);
68 e.addHintListener(new IHintListener() {
71 public void hintRemoved(IHintObservable sender, Key key, Object oldValue) {
72 // TODO Auto-generated method stub
77 public void hintChanged(IHintObservable sender, Key key, Object oldValue,
79 if (key == ElementHints.KEY_TRANSFORM) {
80 G2DNode node = e.getHint(KEY_SG_NODE);
81 Rectangle2D size = e.getHint(ElementHints.KEY_BOUNDS);
82 AffineTransform at = (AffineTransform)newValue;
83 AffineTransform at2 = node.getTransform();
84 node.setTransform(new AffineTransform(at2.getScaleX(),at2.getShearX(),at2.getShearY(),at2.getScaleY(),at.getTranslateX()+size.getWidth()*0.5,at.getTranslateY()+size.getHeight()*0.5));
86 if (key == ElementHints.KEY_BOUNDS) {
87 G2DNode node = e.getHint(KEY_SG_NODE);
88 Rectangle2D size = (Rectangle2D)newValue;
89 Rectangle2D bounds = node.getBoundsInLocal();
90 AffineTransform at = e.getHint(ElementHints.KEY_TRANSFORM);
92 node.setTransform(new AffineTransform(size.getWidth()/bounds.getWidth(),0,0,size.getHeight()/bounds.getHeight(),at.getTranslateX()+size.getWidth()*0.5,at.getTranslateY()+size.getHeight()*0.5));
101 public void cleanup(final IElement e) {
102 Node node = e.getHint(KEY_SG_NODE);
108 public abstract Image getImage(Clickable.PressStatus status, boolean toggled);