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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 Aug 15, 2005 | |
9 | */ | |
10 | ||
11 | package edu.uci.ics.jung.visualization.control; | |
12 | ||
13 | import java.awt.event.MouseEvent; | |
14 | import java.awt.geom.Point2D; | |
15 | ||
16 | import edu.uci.ics.jung.visualization.VisualizationViewer; | |
17 | import edu.uci.ics.jung.visualization.transform.MutableTransformer; | |
18 | ||
19 | /** | |
20 | * Mouse events in the SatelliteView that match the modifiers | |
21 | * will cause the Main view to rotate | |
22 | * @see RotatingGraphMousePlugin | |
23 | * @author Tom Nelson - RABA Technologies | |
24 | * | |
25 | */ | |
26 | public class SatelliteRotatingGraphMousePlugin extends RotatingGraphMousePlugin { | |
27 | ||
28 | public SatelliteRotatingGraphMousePlugin() { | |
29 | 0 | super(); |
30 | 0 | } |
31 | ||
32 | public SatelliteRotatingGraphMousePlugin(int modifiers) { | |
33 | 0 | super(modifiers); |
34 | 0 | } |
35 | /** | |
36 | * check the modifiers. If accepted, use the mouse drag motion | |
37 | * to rotate the graph in the master view | |
38 | */ | |
39 | public void mouseDragged(MouseEvent e) { | |
40 | 0 | if(down == null) return; |
41 | 0 | VisualizationViewer vv = (VisualizationViewer)e.getSource(); |
42 | 0 | boolean accepted = checkModifiers(e); |
43 | 0 | if(accepted) { |
44 | 0 | if(vv instanceof SatelliteVisualizationViewer) { |
45 | 0 | VisualizationViewer vvMaster = |
46 | ((SatelliteVisualizationViewer)vv).getMaster(); | |
47 | ||
48 | 0 | MutableTransformer modelTransformerMaster = vvMaster.getLayoutTransformer(); |
49 | ||
50 | // rotate | |
51 | 0 | vv.setCursor(cursor); |
52 | // I want to compute rotation based on the view coordinates of the | |
53 | // lens center in the satellite view. | |
54 | // translate the master view center to layout coords, then translate | |
55 | // that point to the satellite view's view coordinate system.... | |
56 | 0 | Point2D center = vv.transform(vvMaster.inverseTransform(vvMaster.getCenter())); |
57 | 0 | Point2D q = down; |
58 | 0 | Point2D p = e.getPoint(); |
59 | 0 | Point2D v1 = new Point2D.Double(center.getX()-p.getX(), center.getY()-p.getY()); |
60 | 0 | Point2D v2 = new Point2D.Double(center.getX()-q.getX(), center.getY()-q.getY()); |
61 | 0 | double theta = angleBetween(v1, v2); |
62 | 0 | modelTransformerMaster.rotate(-theta, |
63 | vvMaster.inverseViewTransform(vvMaster.getCenter())); | |
64 | 0 | down.x = e.getX(); |
65 | 0 | down.y = e.getY(); |
66 | } | |
67 | 0 | e.consume(); |
68 | } | |
69 | 0 | } |
70 | ||
71 | } |
this report was generated by version 1.0.5 of jcoverage. |
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