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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.Color; | |
14 | import java.awt.Dimension; | |
15 | import java.awt.Graphics; | |
16 | import java.awt.Graphics2D; | |
17 | import java.awt.Shape; | |
18 | import java.awt.geom.AffineTransform; | |
19 | ||
20 | import edu.uci.ics.jung.visualization.DefaultVisualizationModel; | |
21 | import edu.uci.ics.jung.visualization.Layout; | |
22 | import edu.uci.ics.jung.visualization.Renderer; | |
23 | import edu.uci.ics.jung.visualization.ShapePickSupport; | |
24 | import edu.uci.ics.jung.visualization.VisualizationModel; | |
25 | import edu.uci.ics.jung.visualization.VisualizationViewer; | |
26 | import edu.uci.ics.jung.visualization.transform.MutableAffineTransformer; | |
27 | import edu.uci.ics.jung.visualization.transform.shape.ShapeTransformer; | |
28 | ||
29 | /** | |
30 | * A VisualizationViewer that can act as a satellite view for another | |
31 | * (master) VisualizationViewer. In this view, the full graph is always visible | |
32 | * and all mouse actions affect the graph in the master view. | |
33 | * | |
34 | * A rectangular shape in the satellite view shows the visible bounds of | |
35 | * the master view. | |
36 | * | |
37 | * @author Tom Nelson - RABA Technologies | |
38 | * | |
39 | * | |
40 | */ | |
41 | public class SatelliteVisualizationViewer extends VisualizationViewer { | |
42 | ||
43 | /** | |
44 | * the master VisualizationViewer that this is a satellite view for | |
45 | */ | |
46 | protected VisualizationViewer master; | |
47 | ||
48 | /** | |
49 | * @param layout | |
50 | * @param renderer | |
51 | */ | |
52 | public SatelliteVisualizationViewer(VisualizationViewer master, Layout layout, | |
53 | Renderer renderer) { | |
54 | 0 | this(master, new DefaultVisualizationModel(layout), renderer); |
55 | 0 | } |
56 | ||
57 | /** | |
58 | * @param layout | |
59 | * @param renderer | |
60 | * @param preferredSize | |
61 | */ | |
62 | public SatelliteVisualizationViewer(VisualizationViewer master, Layout layout, Renderer renderer, | |
63 | Dimension preferredSize) { | |
64 | 0 | this(master, new DefaultVisualizationModel(layout, preferredSize), renderer, preferredSize); |
65 | 0 | } |
66 | ||
67 | /** | |
68 | * @param model | |
69 | * @param renderer | |
70 | */ | |
71 | public SatelliteVisualizationViewer(VisualizationViewer master, VisualizationModel model, | |
72 | Renderer renderer) { | |
73 | 0 | this(master, model, renderer, new Dimension(300,300)); |
74 | 0 | } |
75 | ||
76 | /** | |
77 | * @param master the master view | |
78 | * @param model | |
79 | * @param renderer | |
80 | * @param preferredSize | |
81 | */ | |
82 | public SatelliteVisualizationViewer(VisualizationViewer master, VisualizationModel model, | |
83 | Renderer renderer, Dimension preferredSize) { | |
84 | 0 | super(model, renderer, preferredSize); |
85 | 0 | this.master = master; |
86 | ||
87 | // create a graph mouse with custom plugins to affect the master view | |
88 | 0 | ModalGraphMouse gm = new ModalSatelliteGraphMouse(); |
89 | 0 | setGraphMouse(gm); |
90 | ||
91 | // this adds the Lens to the satellite view | |
92 | 0 | addPreRenderPaintable(new ViewLens(this, master)); |
93 | ||
94 | // get a copy of the current layout transform | |
95 | // it may have been scaled to fit the graph | |
96 | 0 | AffineTransform modelLayoutTransform = |
97 | new AffineTransform(master.getLayoutTransformer().getTransform()); | |
98 | ||
99 | // I want no layout transformations in the satellite view | |
100 | // this resets the auto-scaling that occurs in the super constructor | |
101 | 0 | setLayoutTransformer(new MutableAffineTransformer(modelLayoutTransform)); |
102 | ||
103 | // make sure the satellite listens for changes in the master | |
104 | 0 | master.addChangeListener(this); |
105 | ||
106 | // share the picked state of the master | |
107 | 0 | setPickedState(master.getPickedState()); |
108 | 0 | setPickSupport(new ShapePickSupport()); |
109 | 0 | } |
110 | ||
111 | /** | |
112 | * @return Returns the master. | |
113 | */ | |
114 | public VisualizationViewer getMaster() { | |
115 | 0 | return master; |
116 | } | |
117 | ||
118 | /** | |
119 | * A four-sided shape that represents the visible part of the | |
120 | * master view and is drawn in the satellite view | |
121 | * | |
122 | * @author Tom Nelson - RABA Technologies | |
123 | * | |
124 | * | |
125 | */ | |
126 | static class ViewLens implements Paintable { | |
127 | ||
128 | VisualizationViewer master; | |
129 | VisualizationViewer vv; | |
130 | ||
131 | public ViewLens(VisualizationViewer vv, VisualizationViewer master) { | |
132 | this.vv = vv; | |
133 | this.master = master; | |
134 | } | |
135 | public void paint(Graphics g) { | |
136 | ShapeTransformer masterViewTransformer = master.getViewTransformer(); | |
137 | ShapeTransformer masterLayoutTransformer = master.getLayoutTransformer(); | |
138 | ShapeTransformer vvLayoutTransformer = vv.getLayoutTransformer(); | |
139 | ||
140 | Shape lens = master.getBounds(); | |
141 | lens = masterViewTransformer.inverseTransform(lens); | |
142 | lens = masterLayoutTransformer.inverseTransform(lens); | |
143 | lens = vvLayoutTransformer.transform(lens); | |
144 | Graphics2D g2d = (Graphics2D)g; | |
145 | Color old = g.getColor(); | |
146 | Color lensColor = master.getBackground(); | |
147 | vv.setBackground(lensColor.darker()); | |
148 | g.setColor(lensColor); | |
149 | g2d.fill(lens); | |
150 | g.setColor(Color.gray); | |
151 | g2d.draw(lens); | |
152 | g.setColor(old); | |
153 | } | |
154 | ||
155 | public boolean useTransform() { | |
156 | return true; | |
157 | } | |
158 | } | |
159 | ||
160 | } |
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