| Line | Hits | Source |
|---|---|---|
| 1 | /* | |
| 2 | * Copyright (c) 2003, 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 | * | |
| 9 | */ | |
| 10 | package edu.uci.ics.jung.visualization; | |
| 11 | ||
| 12 | import java.awt.Dimension; | |
| 13 | import java.awt.Point; | |
| 14 | import java.awt.event.MouseEvent; | |
| 15 | import java.awt.event.MouseListener; | |
| 16 | import java.awt.event.MouseMotionListener; | |
| 17 | import java.awt.geom.AffineTransform; | |
| 18 | import java.awt.geom.Line2D; | |
| 19 | import java.awt.geom.Point2D; | |
| 20 | import java.awt.geom.Rectangle2D; | |
| 21 | import java.beans.PropertyChangeSupport; | |
| 22 | ||
| 23 | import edu.uci.ics.jung.visualization.transform.MutableTransformer; | |
| 24 | ||
| 25 | ||
| 26 | /** | |
| 27 | * Lens is intended to be used as an overlay on the | |
| 28 | * BirdsEyeVisualizationViewer. It is a Rectangle that | |
| 29 | * acts as a MouseListener (for moving and resizing the | |
| 30 | * Rectangle). | |
| 31 | * | |
| 32 | * @deprecated use the SatelliteVisualizationViewer instead | |
| 33 | * | |
| 34 | * @author Tom Nelson - RABA Technologies | |
| 35 | * | |
| 36 | * | |
| 37 | */ | |
| 38 | public class Lens extends Rectangle2D.Float implements MouseListener, | |
| 39 | MouseMotionListener { | |
| 40 | ||
| 41 | /** | |
| 42 | * true if we are dragging the Rectangle around | |
| 43 | */ | |
| 44 | protected boolean pan; | |
| 45 | ||
| 46 | /** | |
| 47 | * true if we are dragging the right leg | |
| 48 | */ | |
| 49 | protected boolean dragRightLeg; | |
| 50 | ||
| 51 | /** | |
| 52 | * true if we are dragging the base | |
| 53 | */ | |
| 54 | protected boolean dragBase; | |
| 55 | ||
| 56 | /** | |
| 57 | * true if we are dragging the left leg | |
| 58 | */ | |
| 59 | protected boolean dragLeftLeg; | |
| 60 | ||
| 61 | /** | |
| 62 | * true if we are dragging the top | |
| 63 | */ | |
| 64 | protected boolean dragTop; | |
| 65 | ||
| 66 | /** | |
| 67 | * true if the mouse pointer is outside the window | |
| 68 | */ | |
| 69 | protected boolean outside; | |
| 70 | ||
| 71 | /** | |
| 72 | * the offset in the x direction, as a percentage of width | |
| 73 | */ | |
| 74 | protected float offx; | |
| 75 | ||
| 76 | /** | |
| 77 | * the offset in the y direction, as a percentage of height | |
| 78 | */ | |
| 79 | protected float offy; | |
| 80 | ||
| 81 | /** | |
| 82 | * the left leg of the rectangle | |
| 83 | */ | |
| 84 | protected Line2D leftLeg; | |
| 85 | ||
| 86 | /** | |
| 87 | * the right leg of the rectangle | |
| 88 | */ | |
| 89 | protected Line2D rightLeg; | |
| 90 | ||
| 91 | /** | |
| 92 | * the base of the rectangle | |
| 93 | */ | |
| 94 | protected Line2D base; | |
| 95 | ||
| 96 | /** | |
| 97 | * the top of the rectangle | |
| 98 | */ | |
| 99 | protected Line2D top; | |
| 100 | ||
| 101 | /** | |
| 102 | * the scale of the BirdsEyeVisualizationViewer compared to | |
| 103 | * the graph display | |
| 104 | */ | |
| 105 | protected float scalex; | |
| 106 | ||
| 107 | /** | |
| 108 | * the scale of the BirdsEyeVisualizationViewer compared to | |
| 109 | * the graph display | |
| 110 | */ | |
| 111 | protected float scaley; | |
| 112 | ||
| 113 | /** | |
| 114 | * the layout being used by the BirdsEye | |
| 115 | */ | |
| 116 | protected Layout layout; | |
| 117 | ||
| 118 | /** | |
| 119 | * the VisualizationViewer that is scaled and translated | |
| 120 | * by this Lens | |
| 121 | */ | |
| 122 | protected VisualizationViewer vv; | |
| 123 | ||
| 124 | /** | |
| 125 | * support for property changes | |
| 126 | */ | |
| 127 | protected PropertyChangeSupport support; | |
| 128 | ||
| 129 | /** | |
| 130 | * ratio of width to height | |
| 131 | */ | |
| 132 | protected float aspectRatio; | |
| 133 | ||
| 134 | protected Point down; | |
| 135 | ||
| 136 | protected AffineTransform lensXform; | |
| 137 | ||
| 138 | /** | |
| 139 | * Create a Lens that is centered in the | |
| 140 | * BirdsEyeVisualizationViewer | |
| 141 | * | |
| 142 | */ | |
| 143 | public Lens(VisualizationViewer vv, float scalex, float scaley) { | |
| 144 | 0 | super(vv.getGraphLayout().getCurrentSize().width * scalex / 4, |
| 145 | vv.getGraphLayout().getCurrentSize().height * scaley / 4, | |
| 146 | vv.getGraphLayout().getCurrentSize().width * scalex / 2, | |
| 147 | vv.getGraphLayout().getCurrentSize().height * scaley / 2); | |
| 148 | 0 | this.vv = vv; |
| 149 | 0 | this.layout = vv.getGraphLayout(); |
| 150 | 0 | this.scalex = scalex; |
| 151 | 0 | this.scaley = scaley; |
| 152 | 0 | lensXform = AffineTransform.getScaleInstance(1/scalex, 1/scaley); |
| 153 | 0 | this.aspectRatio = (float)((getMaxX() - getMinX()) / (getMaxY() - getMinY())); |
| 154 | 0 | rightLeg = new Line2D.Float((float)getMaxX(), (float)getMinY(), (float)getMaxX(), (float)getMaxY()); |
| 155 | 0 | leftLeg = new Line2D.Float((float)getMinX(), (float)getMinY(), (float)getMinX(), (float)getMaxY()); |
| 156 | 0 | base = new Line2D.Float((float)getMinX(), (float)getMaxY(), (float)getMaxX(), (float)getMaxY()); |
| 157 | 0 | top = new Line2D.Float((float)getMinX(), (float)getMinY(), (float)getMaxX(), (float)getMinY()); |
| 158 | 0 | } |
| 159 | ||
| 160 | /** | |
| 161 | * reset the rectangle to the full size of the BirdsEyeVisualizationViewer | |
| 162 | * This will result in no zoom or pan of the main display | |
| 163 | * | |
| 164 | */ | |
| 165 | public void reset() { | |
| 166 | 0 | Dimension d = vv.getSize(); |
| 167 | 0 | Dimension ld = vv.getGraphLayout().getCurrentSize(); |
| 168 | 0 | vv.getViewTransformer().setScale((float)d.width/ld.width, (float)d.height/ld.height, new Point2D.Float()); |
| 169 | 0 | } |
| 170 | ||
| 171 | public void setFrame(VisualizationViewer vv) { | |
| 172 | 0 | MutableTransformer viewTransformer = vv.getViewTransformer(); |
| 173 | 0 | Dimension d = new Dimension( |
| 174 | (int) (vv.getSize().width * scalex ), | |
| 175 | (int) (vv.getSize().height * scaley )); | |
| 176 | 0 | float width = (float) (d.width/(viewTransformer.getScaleX())); |
| 177 | 0 | float height = (float) (d.height/(viewTransformer.getScaleY())); |
| 178 | 0 | float x = -(float) (viewTransformer.getTranslateX()*scalex/(viewTransformer.getScaleX())); |
| 179 | 0 | float y = -(float) (viewTransformer.getTranslateY()*scaley/(viewTransformer.getScaleY())); |
| 180 | 0 | setFrame(x,y,width,height); |
| 181 | 0 | } |
| 182 | ||
| 183 | /** | |
| 184 | * set the Rectangle to be centered in the BirdsEyeVisualizationViewer | |
| 185 | * | |
| 186 | */ | |
| 187 | public void init() { | |
| 188 | 0 | vv.getViewTransformer().setScale(2.0f, 2.0f, vv.getCenter()); |
| 189 | 0 | } |
| 190 | ||
| 191 | /* | |
| 192 | * (non-Javadoc) | |
| 193 | * | |
| 194 | * @see java.awt.event.MouseListener#mouseClicked(java.awt.event.MouseEvent) | |
| 195 | */ | |
| 196 | public void mouseClicked(MouseEvent e) { | |
| 197 | 0 | } |
| 198 | ||
| 199 | /* | |
| 200 | * (non-Javadoc) | |
| 201 | * | |
| 202 | * @see java.awt.event.MouseListener#mousePressed(java.awt.event.MouseEvent) | |
| 203 | */ | |
| 204 | public void mousePressed(MouseEvent e) { | |
| 205 | ||
| 206 | 0 | down = e.getPoint(); |
| 207 | ||
| 208 | 0 | if (leftLeg.ptLineDist(down) < 5) { |
| 209 | 0 | dragLeftLeg = true; |
| 210 | 0 | } else if (rightLeg.ptLineDist(down) < 5) { |
| 211 | 0 | dragRightLeg = true; |
| 212 | 0 | } else if (base.ptLineDist(down) < 5) { |
| 213 | 0 | dragBase = true; |
| 214 | 0 | } else if (top.ptLineDist(down) < 5) { |
| 215 | 0 | dragTop = true; |
| 216 | 0 | } else if (contains(down)) { |
| 217 | 0 | pan = true; |
| 218 | } else { | |
| 219 | 0 | pan = dragLeftLeg = dragRightLeg = dragBase = dragTop = false; |
| 220 | } | |
| 221 | 0 | } |
| 222 | ||
| 223 | /* | |
| 224 | * (non-Javadoc) | |
| 225 | * | |
| 226 | * @see java.awt.event.MouseListener#mouseReleased(java.awt.event.MouseEvent) | |
| 227 | */ | |
| 228 | public void mouseReleased(MouseEvent e) { | |
| 229 | 0 | pan = dragLeftLeg = dragRightLeg = dragTop = dragBase = false; |
| 230 | 0 | } |
| 231 | ||
| 232 | /* | |
| 233 | * (non-Javadoc) | |
| 234 | * | |
| 235 | * @see java.awt.event.MouseListener#mouseEntered(java.awt.event.MouseEvent) | |
| 236 | */ | |
| 237 | public void mouseEntered(MouseEvent e) { | |
| 238 | 0 | outside = false; |
| 239 | 0 | } |
| 240 | ||
| 241 | /* | |
| 242 | * (non-Javadoc) | |
| 243 | * | |
| 244 | * @see java.awt.event.MouseListener#mouseExited(java.awt.event.MouseEvent) | |
| 245 | */ | |
| 246 | public void mouseExited(MouseEvent e) { | |
| 247 | 0 | outside = true; |
| 248 | 0 | } |
| 249 | ||
| 250 | /* | |
| 251 | * (non-Javadoc) | |
| 252 | * | |
| 253 | * @see java.awt.event.MouseMotionListener#mouseDragged(java.awt.event.MouseEvent) | |
| 254 | */ | |
| 255 | public void mouseDragged(MouseEvent e) { | |
| 256 | 0 | if (outside) |
| 257 | 0 | return; |
| 258 | ||
| 259 | 0 | Point2D q = down; |
| 260 | 0 | Point2D p = e.getPoint(); |
| 261 | 0 | if (pan) { |
| 262 | 0 | vv.getViewTransformer().translate((q.getX()-p.getX())/scalex, (q.getY()-p.getY())/scaley); |
| 263 | } else { | |
| 264 | 0 | float dw = 0.0f; |
| 265 | 0 | float dh = 0.0f; |
| 266 | ||
| 267 | 0 | if (dragRightLeg) { |
| 268 | 0 | dw = (float) (p.getX()-q.getX()); |
| 269 | 0 | dh = dw / aspectRatio; |
| 270 | ||
| 271 | 0 | } else if (dragLeftLeg) { |
| 272 | 0 | dw = (float) (q.getX()-p.getX()); |
| 273 | 0 | dh = dw / aspectRatio; |
| 274 | ||
| 275 | 0 | } else if (dragBase) { |
| 276 | 0 | dh = (float) (p.getY()-q.getY()); |
| 277 | 0 | dw = dh * aspectRatio; |
| 278 | ||
| 279 | 0 | } else if (dragTop) { |
| 280 | 0 | dh = (float) (q.getY()-p.getY()); |
| 281 | 0 | dw = dh * aspectRatio; |
| 282 | } | |
| 283 | 0 | float pwidth = (float)getMaxX() - (float)getMinX(); |
| 284 | 0 | float pheight = (float)getMaxY() - (float)getMinY(); |
| 285 | 0 | float newWidth = pwidth + 2 * dw; |
| 286 | 0 | float newHeight = pheight + 2 * dh; |
| 287 | 0 | if (newWidth < 3 || newHeight < 3) |
| 288 | 0 | return; |
| 289 | 0 | vv.getViewTransformer().scale(pwidth/newWidth, pheight/newHeight, vv.getCenter()); |
| 290 | } | |
| 291 | 0 | down = e.getPoint(); |
| 292 | ||
| 293 | 0 | rightLeg = new Line2D.Float((float)getMaxX(), (float)getMinY(), (float)getMaxX(), (float)getMaxY()); |
| 294 | 0 | leftLeg = new Line2D.Float((float)getMinX(), (float)getMinY(), (float)getMinX(), (float)getMaxY()); |
| 295 | 0 | base = new Line2D.Float((float)getMinX(), (float)getMaxY(), (float)getMaxX(), (float)getMaxY()); |
| 296 | 0 | top = new Line2D.Float((float)getMinX(), (float)getMinY(), (float)getMaxX(), (float)getMinY()); |
| 297 | 0 | } |
| 298 | ||
| 299 | /* | |
| 300 | * (non-Javadoc) | |
| 301 | * | |
| 302 | * @see java.awt.event.MouseMotionListener#mouseMoved(java.awt.event.MouseEvent) | |
| 303 | */ | |
| 304 | public void mouseMoved(MouseEvent e) { | |
| 305 | 0 | } |
| 306 | } |
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