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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.Color; | |
| 14 | import java.awt.Graphics; | |
| 15 | import java.awt.Graphics2D; | |
| 16 | import java.awt.geom.Ellipse2D; | |
| 17 | ||
| 18 | import edu.uci.ics.jung.visualization.VisualizationViewer; | |
| 19 | import edu.uci.ics.jung.visualization.VisualizationViewer.Paintable; | |
| 20 | import edu.uci.ics.jung.visualization.control.ModalGraphMouse; | |
| 21 | /** | |
| 22 | * A class to make it easy to add an | |
| 23 | * examining lens to a jung graph application. See HyperbolicTransformerDemo, | |
| 24 | * ViewLensSupport and LayoutLensSupport | |
| 25 | * for examples of how to use it. | |
| 26 | * | |
| 27 | * @author Tom Nelson - RABA Technologies | |
| 28 | * | |
| 29 | * | |
| 30 | */ | |
| 31 | public abstract class AbstractLensSupport implements LensSupport { | |
| 32 | ||
| 33 | protected VisualizationViewer vv; | |
| 34 | protected VisualizationViewer.GraphMouse graphMouse; | |
| 35 | protected MutableTransformer savedViewTransformer; | |
| 36 | protected LensTransformer lensTransformer; | |
| 37 | protected ModalGraphMouse lensGraphMouse; | |
| 38 | protected Lens lens; | |
| 39 | protected LensControls lensControls; | |
| 40 | protected String defaultToolTipText; | |
| 41 | ||
| 42 | protected static final String instructions = | |
| 43 | "<html><center>Mouse-Drag the Lens center to move it<p>"+ | |
| 44 | "Mouse-Drag the Lens edge to resize it<p>"+ | |
| 45 | "Ctrl+MouseWheel to change magnification</center></html>"; | |
| 46 | ||
| 47 | /** | |
| 48 | * create the base class, setting common members and creating | |
| 49 | * a custom GraphMouse | |
| 50 | * @param vv the VisualizationViewer to work on | |
| 51 | */ | |
| 52 | 0 | public AbstractLensSupport(VisualizationViewer vv, ModalGraphMouse lensGraphMouse) { |
| 53 | 0 | this.vv = vv; |
| 54 | 0 | this.savedViewTransformer = vv.getViewTransformer(); |
| 55 | 0 | this.graphMouse = vv.getGraphMouse(); |
| 56 | 0 | this.defaultToolTipText = vv.getToolTipText(); |
| 57 | ||
| 58 | 0 | this.lensGraphMouse = lensGraphMouse;//new ModalLensGraphMouse(); |
| 59 | 0 | } |
| 60 | ||
| 61 | public void activate(boolean state) { | |
| 62 | 0 | if(state) activate(); |
| 63 | 0 | else deactivate(); |
| 64 | 0 | } |
| 65 | ||
| 66 | public LensTransformer getLensTransformer() { | |
| 67 | 0 | return lensTransformer; |
| 68 | } | |
| 69 | ||
| 70 | /** | |
| 71 | * @return Returns the hyperbolicGraphMouse. | |
| 72 | */ | |
| 73 | public ModalGraphMouse getGraphMouse() { | |
| 74 | 0 | return lensGraphMouse; |
| 75 | } | |
| 76 | ||
| 77 | /** | |
| 78 | * the background for the hyperbolic projection | |
| 79 | * @author Tom Nelson - RABA Technologies | |
| 80 | * | |
| 81 | * | |
| 82 | */ | |
| 83 | public static class Lens implements Paintable { | |
| 84 | LensTransformer lensTransformer; | |
| 85 | Ellipse2D ellipse; | |
| 86 | ||
| 87 | public Lens(LensTransformer lensTransformer) { | |
| 88 | this.lensTransformer = lensTransformer; | |
| 89 | this.ellipse = lensTransformer.getEllipse(); | |
| 90 | } | |
| 91 | ||
| 92 | /** | |
| 93 | * @return Returns the hyperbolicTransformer. | |
| 94 | */ | |
| 95 | ||
| 96 | public void paint(Graphics g) { | |
| 97 | ||
| 98 | Graphics2D g2d = (Graphics2D)g; | |
| 99 | g.setColor(Color.decode("0xdddddd")); | |
| 100 | g2d.fill(ellipse); | |
| 101 | } | |
| 102 | ||
| 103 | public boolean useTransform() { | |
| 104 | return false; | |
| 105 | } | |
| 106 | } | |
| 107 | ||
| 108 | /** | |
| 109 | * the background for the hyperbolic projection | |
| 110 | * @author Tom Nelson - RABA Technologies | |
| 111 | * | |
| 112 | * | |
| 113 | */ | |
| 114 | public static class LensControls implements Paintable { | |
| 115 | LensTransformer lensTransformer; | |
| 116 | Ellipse2D ellipse; | |
| 117 | ||
| 118 | public LensControls(LensTransformer lensTransformer) { | |
| 119 | this.lensTransformer = lensTransformer; | |
| 120 | this.ellipse = lensTransformer.getEllipse(); | |
| 121 | } | |
| 122 | ||
| 123 | /** | |
| 124 | * @return Returns the hyperbolicTransformer. | |
| 125 | */ | |
| 126 | ||
| 127 | public void paint(Graphics g) { | |
| 128 | ||
| 129 | Graphics2D g2d = (Graphics2D)g; | |
| 130 | g.setColor(Color.gray); | |
| 131 | g2d.draw(ellipse); | |
| 132 | int centerX = (int)Math.round(ellipse.getCenterX()); | |
| 133 | int centerY = (int)Math.round(ellipse.getCenterY()); | |
| 134 | g.drawOval(centerX-10, centerY-10, 20, 20); | |
| 135 | } | |
| 136 | ||
| 137 | public boolean useTransform() { | |
| 138 | return false; | |
| 139 | } | |
| 140 | } | |
| 141 | ||
| 142 | } |
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