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1 | /* | |
2 | * Copyright (c) 2005, the JUNG Project and the Regents of the University of | |
3 | * California All rights reserved. | |
4 | * | |
5 | * This software is open-source under the BSD license; see either "license.txt" | |
6 | * or http://jung.sourceforge.net/license.txt for a description. | |
7 | * | |
8 | * Created on Jul 21, 2005 | |
9 | */ | |
10 | ||
11 | package edu.uci.ics.jung.visualization.transform; | |
12 | ||
13 | import java.awt.Dimension; | |
14 | ||
15 | import edu.uci.ics.jung.visualization.VisualizationViewer; | |
16 | import edu.uci.ics.jung.visualization.control.ModalGraphMouse; | |
17 | import edu.uci.ics.jung.visualization.control.ModalLensGraphMouse; | |
18 | /** | |
19 | * A class to make it easy to add an | |
20 | * examining lens to a jung graph application. See HyperbolicTransformerDemo | |
21 | * for an example of how to use it. | |
22 | * | |
23 | * @author Tom Nelson - RABA Technologies | |
24 | * | |
25 | * | |
26 | */ | |
27 | public class LayoutLensSupport extends AbstractLensSupport | |
28 | implements LensSupport { | |
29 | ||
30 | public LayoutLensSupport(VisualizationViewer vv) { | |
31 | 0 | this(vv, new HyperbolicTransformer(vv, vv.getLayoutTransformer()), |
32 | new ModalLensGraphMouse()); | |
33 | 0 | } |
34 | /** | |
35 | * create the base class, setting common members and creating | |
36 | * a custom GraphMouse | |
37 | * @param vv the VisualizationViewer to work on | |
38 | */ | |
39 | public LayoutLensSupport(VisualizationViewer vv, LensTransformer lensTransformer, | |
40 | ModalGraphMouse lensGraphMouse) { | |
41 | 0 | super(vv, lensGraphMouse); |
42 | 0 | this.lensTransformer = lensTransformer; |
43 | ||
44 | 0 | Dimension d = vv.getSize(); |
45 | 0 | if(d.width <= 0 || d.height <= 0) { |
46 | 0 | d = vv.getPreferredSize(); |
47 | } | |
48 | 0 | lensTransformer.setViewRadius(d.width/5); |
49 | 0 | } |
50 | ||
51 | public void activate() { | |
52 | 0 | if(lens == null) { |
53 | 0 | lens = new Lens(lensTransformer); |
54 | } | |
55 | 0 | if(lensControls == null) { |
56 | 0 | lensControls = new LensControls(lensTransformer); |
57 | } | |
58 | 0 | vv.setLayoutTransformer(lensTransformer); |
59 | 0 | vv.setViewTransformer(new MutableAffineTransformer()); |
60 | 0 | vv.addPreRenderPaintable(lens); |
61 | 0 | vv.addPostRenderPaintable(lensControls); |
62 | 0 | vv.setGraphMouse(lensGraphMouse); |
63 | 0 | vv.setToolTipText(instructions); |
64 | 0 | vv.repaint(); |
65 | 0 | } |
66 | ||
67 | public void deactivate() { | |
68 | 0 | if(savedViewTransformer != null) { |
69 | 0 | vv.setViewTransformer(savedViewTransformer); |
70 | } | |
71 | 0 | if(lensTransformer != null) { |
72 | 0 | vv.removePreRenderPaintable(lens); |
73 | 0 | vv.removePostRenderPaintable(lensControls); |
74 | 0 | vv.setLayoutTransformer(lensTransformer.getDelegate()); |
75 | } | |
76 | 0 | vv.setToolTipText(defaultToolTipText); |
77 | 0 | vv.setGraphMouse(graphMouse); |
78 | 0 | vv.repaint(); |
79 | 0 | } |
80 | } |
this report was generated by version 1.0.5 of jcoverage. |
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