| Line | Hits | Source |
|---|---|---|
| 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 11, 2005 | |
| 9 | */ | |
| 10 | ||
| 11 | package edu.uci.ics.jung.visualization.transform.shape; | |
| 12 | ||
| 13 | import java.awt.Component; | |
| 14 | import java.awt.Dimension; | |
| 15 | import java.awt.Font; | |
| 16 | import java.awt.Graphics; | |
| 17 | import java.awt.Graphics2D; | |
| 18 | import java.awt.Paint; | |
| 19 | import java.awt.Rectangle; | |
| 20 | import java.awt.Shape; | |
| 21 | import java.awt.Stroke; | |
| 22 | import java.awt.geom.AffineTransform; | |
| 23 | import java.awt.geom.Ellipse2D; | |
| 24 | import java.awt.geom.GeneralPath; | |
| 25 | import java.awt.geom.Point2D; | |
| 26 | import java.awt.geom.Rectangle2D; | |
| 27 | ||
| 28 | import javax.swing.Icon; | |
| 29 | ||
| 30 | import edu.uci.ics.jung.graph.Edge; | |
| 31 | import edu.uci.ics.jung.graph.UndirectedEdge; | |
| 32 | import edu.uci.ics.jung.graph.Vertex; | |
| 33 | import edu.uci.ics.jung.graph.decorators.VertexIconFunction; | |
| 34 | import edu.uci.ics.jung.utils.Pair; | |
| 35 | import edu.uci.ics.jung.visualization.PluggableRenderer; | |
| 36 | import edu.uci.ics.jung.visualization.transform.HyperbolicTransformer; | |
| 37 | import edu.uci.ics.jung.visualization.transform.MutableAffineTransformer; | |
| 38 | import edu.uci.ics.jung.visualization.transform.Transformer; | |
| 39 | ||
| 40 | /** | |
| 41 | * a subclass to apply a TransformingGraphics to certain operations | |
| 42 | * @author Tom Nelson - RABA Technologies | |
| 43 | * | |
| 44 | * | |
| 45 | */ | |
| 46 | public class TransformingPluggableRenderer extends PluggableRendererDecorator { | |
| 47 | ||
| 48 | /** | |
| 49 | * the transformer | |
| 50 | */ | |
| 51 | Transformer transformer; | |
| 52 | ||
| 53 | /** | |
| 54 | * the Graphics wrapper that uses the transformer | |
| 55 | */ | |
| 56 | TransformingGraphics tg2d; | |
| 57 | ||
| 58 | /** | |
| 59 | * create an instance | |
| 60 | * | |
| 61 | */ | |
| 62 | public TransformingPluggableRenderer(PluggableRenderer delegate) { | |
| 63 | 0 | super(delegate); |
| 64 | 0 | this.transformer = new MutableAffineTransformer(); |
| 65 | 0 | this.tg2d = new TransformingGraphics(transformer); |
| 66 | 0 | } |
| 67 | ||
| 68 | /** | |
| 69 | * @return Returns the transformer. | |
| 70 | */ | |
| 71 | public Transformer getTransformer() { | |
| 72 | 0 | return transformer; |
| 73 | } | |
| 74 | ||
| 75 | /** | |
| 76 | * @param transformer The transformer to set. | |
| 77 | */ | |
| 78 | public void setTransformer(Transformer transformer) { | |
| 79 | 0 | this.transformer = transformer; |
| 80 | 0 | this.tg2d.setTransformer(transformer); |
| 81 | 0 | } |
| 82 | ||
| 83 | /** (non-Javadoc) | |
| 84 | * override to wrap the passed Graphics2D in my TransformingGraphics, | |
| 85 | * then call overloaded drawSimpleEdge | |
| 86 | */ | |
| 87 | protected void drawSimpleEdge(Graphics2D g, Edge e, int x1, int y1, int x2, int y2) { | |
| 88 | 0 | this.tg2d.setDelegate(g); |
| 89 | 0 | drawSimpleEdge(tg2d, e, x1, y1, x2, y2); |
| 90 | 0 | } |
| 91 | /** | |
| 92 | * overloaded to use TransformingGraphics | |
| 93 | * @param g | |
| 94 | * @param e | |
| 95 | * @param x1 | |
| 96 | * @param y1 | |
| 97 | * @param x2 | |
| 98 | * @param y2 | |
| 99 | */ | |
| 100 | protected void drawSimpleEdge(TransformingGraphics g, Edge e, int x1, int y1, int x2, int y2) { | |
| 101 | 0 | float flatness = 0; |
| 102 | ||
| 103 | 0 | if(transformer instanceof HyperbolicTransformer) { |
| 104 | 0 | HyperbolicTransformer ht = (HyperbolicTransformer)transformer; |
| 105 | 0 | Ellipse2D hyperEllipse = ht.getEllipse(); |
| 106 | 0 | if(hyperEllipse.contains(x1,y1) || hyperEllipse.contains(x2,y2)) { |
| 107 | 0 | flatness = .05f; |
| 108 | } | |
| 109 | } | |
| 110 | 0 | Pair endpoints = e.getEndpoints(); |
| 111 | 0 | Vertex v1 = (Vertex)endpoints.getFirst(); |
| 112 | 0 | Vertex v2 = (Vertex)endpoints.getSecond(); |
| 113 | 0 | boolean isLoop = v1.equals(v2); |
| 114 | 0 | Shape s2 = getVertexShapeFunction().getShape(v2); |
| 115 | 0 | Shape edgeShape = getEdgeShapeFunction().getShape(e); |
| 116 | ||
| 117 | 0 | boolean edgeHit = true; |
| 118 | 0 | boolean arrowHit = true; |
| 119 | 0 | Rectangle deviceRectangle = null; |
| 120 | 0 | if(getScreenDevice() != null) { |
| 121 | 0 | Dimension d = getScreenDevice().getSize(); |
| 122 | 0 | deviceRectangle = new Rectangle(0,0,d.width,d.height); |
| 123 | } | |
| 124 | ||
| 125 | 0 | AffineTransform xform = AffineTransform.getTranslateInstance(x1, y1); |
| 126 | ||
| 127 | 0 | if(isLoop) { |
| 128 | // this is a self-loop. scale it is larger than the vertex | |
| 129 | // it decorates and translate it so that its nadir is | |
| 130 | // at the center of the vertex. | |
| 131 | 0 | Rectangle2D s2Bounds = s2.getBounds2D(); |
| 132 | 0 | xform.scale(s2Bounds.getWidth(),s2Bounds.getHeight()); |
| 133 | 0 | xform.translate(0, -edgeShape.getBounds2D().getWidth()/2); |
| 134 | } else { | |
| 135 | // this is a normal edge. Rotate it to the angle between | |
| 136 | // vertex endpoints, then scale it to the distance between | |
| 137 | // the vertices | |
| 138 | 0 | float dx = x2-x1; |
| 139 | 0 | float dy = y2-y1; |
| 140 | 0 | float thetaRadians = (float) Math.atan2(dy, dx); |
| 141 | 0 | xform.rotate(thetaRadians); |
| 142 | 0 | float dist = (float) Math.sqrt(dx*dx + dy*dy); |
| 143 | 0 | xform.scale(dist, 1.0); |
| 144 | } | |
| 145 | ||
| 146 | 0 | edgeShape = xform.createTransformedShape(edgeShape); |
| 147 | ||
| 148 | 0 | edgeHit = g.hit(deviceRectangle, edgeShape, true); |
| 149 | ||
| 150 | 0 | if(edgeHit == true) { |
| 151 | ||
| 152 | 0 | Paint oldPaint = g.getPaint(); |
| 153 | ||
| 154 | // get Paints for filling and drawing | |
| 155 | // (filling is done first so that drawing and label use same Paint) | |
| 156 | 0 | Paint fill_paint = getEdgePaintFunction().getFillPaint(e); |
| 157 | 0 | if (fill_paint != null) |
| 158 | { | |
| 159 | 0 | g.setPaint(fill_paint); |
| 160 | 0 | g.fill(edgeShape, flatness); |
| 161 | } | |
| 162 | 0 | Paint draw_paint = getEdgePaintFunction().getDrawPaint(e); |
| 163 | 0 | if (draw_paint != null) |
| 164 | { | |
| 165 | 0 | g.setPaint(draw_paint); |
| 166 | 0 | g.draw(edgeShape, flatness); |
| 167 | } | |
| 168 | ||
| 169 | 0 | float scalex = (float)g.getTransform().getScaleX(); |
| 170 | 0 | float scaley = (float)g.getTransform().getScaleY(); |
| 171 | // see if arrows are too small to bother drawing | |
| 172 | 0 | if(scalex < .3 || scaley < .3) return; |
| 173 | ||
| 174 | 0 | if (getEdgeArrowPredicate().evaluate(e)) { |
| 175 | ||
| 176 | 0 | Shape destVertexShape = |
| 177 | getVertexShapeFunction().getShape((Vertex)e.getEndpoints().getSecond()); | |
| 178 | 0 | AffineTransform xf = AffineTransform.getTranslateInstance(x2, y2); |
| 179 | 0 | destVertexShape = xf.createTransformedShape(destVertexShape); |
| 180 | ||
| 181 | 0 | arrowHit = g.hit(deviceRectangle, destVertexShape, true); |
| 182 | ||
| 183 | 0 | if(arrowHit) { |
| 184 | ||
| 185 | 0 | AffineTransform at = |
| 186 | getArrowTransform(new GeneralPath(edgeShape), destVertexShape); | |
| 187 | 0 | if(at == null) return; |
| 188 | 0 | Shape arrow = getEdgeArrowFunction().getArrow(e); |
| 189 | 0 | arrow = at.createTransformedShape(arrow); |
| 190 | // note that arrows implicitly use the edge's draw paint | |
| 191 | 0 | g.fill(arrow); |
| 192 | 0 | if (e instanceof UndirectedEdge) { |
| 193 | 0 | Shape vertexShape = |
| 194 | getVertexShapeFunction().getShape((Vertex)e.getEndpoints().getFirst()); | |
| 195 | 0 | xf = AffineTransform.getTranslateInstance(x1, y1); |
| 196 | 0 | vertexShape = xf.createTransformedShape(vertexShape); |
| 197 | ||
| 198 | 0 | arrowHit = g.hit(deviceRectangle, vertexShape, true); |
| 199 | 0 | if(arrowHit) { |
| 200 | 0 | at = getReverseArrowTransform(new GeneralPath(edgeShape), vertexShape, !isLoop); |
| 201 | 0 | if(at == null) return; |
| 202 | 0 | arrow = getEdgeArrowFunction().getArrow(e); |
| 203 | 0 | arrow = at.createTransformedShape(arrow); |
| 204 | 0 | g.fill(arrow); |
| 205 | } | |
| 206 | } | |
| 207 | } | |
| 208 | } | |
| 209 | // use existing paint for text if no draw paint specified | |
| 210 | 0 | if (draw_paint == null) |
| 211 | 0 | g.setPaint(oldPaint); |
| 212 | 0 | String label = getEdgeStringer().getLabel(e); |
| 213 | 0 | if (label != null) { |
| 214 | 0 | labelEdge(g, e, label, x1, x2, y1, y2); |
| 215 | } | |
| 216 | ||
| 217 | ||
| 218 | // restore old paint | |
| 219 | 0 | g.setPaint(oldPaint); |
| 220 | } | |
| 221 | 0 | } |
| 222 | ||
| 223 | ||
| 224 | /** | |
| 225 | * overridden to wrap passed Graphics2D in my TransformingGraphics, then call | |
| 226 | * overloaded labelEdge | |
| 227 | */ | |
| 228 | protected void labelEdge(Graphics2D g2d, Edge e, String label, int x1, int x2, int y1, int y2) { | |
| 229 | 0 | tg2d.setDelegate(g2d); |
| 230 | 0 | labelEdge(tg2d, e, label, x1, x2, y1, y2); |
| 231 | 0 | } |
| 232 | /** | |
| 233 | * overloaded to use TransformingGraphics | |
| 234 | * @param g2d | |
| 235 | * @param e | |
| 236 | * @param label | |
| 237 | * @param x1 | |
| 238 | * @param x2 | |
| 239 | * @param y1 | |
| 240 | * @param y2 | |
| 241 | */ | |
| 242 | protected void labelEdge(TransformingGraphics g2d, Edge e, String label, int x1, int x2, int y1, int y2) | |
| 243 | { | |
| 244 | 0 | Point2D p = g2d.getTransformer().transform(new Point2D.Float(x1, y1)); |
| 245 | 0 | Point2D q = g2d.getTransformer().transform(new Point2D.Float(x2, y2)); |
| 246 | 0 | x1 = (int)p.getX(); |
| 247 | 0 | y1 = (int)p.getY(); |
| 248 | 0 | x2 = (int)q.getX(); |
| 249 | 0 | y2 = (int)q.getY(); |
| 250 | ||
| 251 | 0 | int distX = x2 - x1; |
| 252 | 0 | int distY = y2 - y1; |
| 253 | 0 | double totalLength = Math.sqrt(distX * distX + distY * distY); |
| 254 | ||
| 255 | 0 | double closeness = getEdgeLabelClosenessFunction().getNumber(e).doubleValue(); |
| 256 | ||
| 257 | 0 | int posX = (int) (x1 + (closeness) * distX); |
| 258 | 0 | int posY = (int) (y1 + (closeness) * distY); |
| 259 | ||
| 260 | 0 | int xDisplacement = (int) (PluggableRenderer.LABEL_OFFSET * (distY / totalLength)); |
| 261 | 0 | int yDisplacement = (int) (PluggableRenderer.LABEL_OFFSET * (-distX / totalLength)); |
| 262 | ||
| 263 | 0 | Component component = prepareRenderer(getGraphLabelRenderer(), label, isPicked(e), e); |
| 264 | 0 | Dimension d = component.getPreferredSize(); |
| 265 | ||
| 266 | 0 | Font font = getEdgeFontFunction().getFont(e); |
| 267 | 0 | if(font != null) |
| 268 | 0 | component.setFont(font); |
| 269 | ||
| 270 | 0 | Shape edgeShape = getEdgeShapeFunction().getShape(e); |
| 271 | ||
| 272 | 0 | double parallelOffset = 1; |
| 273 | 0 | Integer parallelCount = (Integer)e.getUserDatum("parallelCount"); |
| 274 | 0 | if(parallelCount != null) { |
| 275 | 0 | parallelOffset += parallelCount.intValue(); |
| 276 | } | |
| 277 | ||
| 278 | 0 | if(edgeShape instanceof Ellipse2D) { |
| 279 | 0 | parallelOffset += edgeShape.getBounds().getHeight(); |
| 280 | 0 | parallelOffset = -parallelOffset; |
| 281 | } | |
| 282 | ||
| 283 | 0 | parallelOffset *= d.height; |
| 284 | ||
| 285 | 0 | AffineTransform old = g2d.getTransform(); |
| 286 | 0 | AffineTransform xform = new AffineTransform(old); |
| 287 | 0 | xform.translate(posX+xDisplacement, posY+yDisplacement); |
| 288 | 0 | if(getGraphLabelRenderer().isRotateEdgeLabels()) { |
| 289 | // float thetaRadians = (float) Math.atan2(dy, dx); | |
| 290 | 0 | double dx = x2 - x1; |
| 291 | 0 | double dy = y2 - y1; |
| 292 | 0 | double theta = Math.atan2(dy, dx); |
| 293 | 0 | if(dx < 0) { |
| 294 | 0 | theta += Math.PI; |
| 295 | 0 | parallelOffset = -parallelOffset; |
| 296 | } | |
| 297 | 0 | xform.rotate(theta); |
| 298 | } | |
| 299 | ||
| 300 | 0 | xform.translate(-d.width/2, -(d.height/2-parallelOffset)); |
| 301 | 0 | g2d.setTransform(xform); |
| 302 | 0 | getRendererPane().paintComponent(g2d.getDelegate(), component, getScreenDevice(), |
| 303 | 0, 0, | |
| 304 | d.width, d.height, true); | |
| 305 | 0 | g2d.setTransform(old); |
| 306 | 0 | } |
| 307 | ||
| 308 | /** | |
| 309 | * overridden to wrap passed Graphics in my TransformingGraphics, then | |
| 310 | * call overloaded labelVertex | |
| 311 | */ | |
| 312 | protected void labelVertex(Graphics g, Vertex v, String label, int x, int y) { | |
| 313 | 0 | tg2d.setDelegate((Graphics2D)g); |
| 314 | 0 | labelVertex(tg2d, v, label, x, y); |
| 315 | 0 | } |
| 316 | /** | |
| 317 | * overloaded to use TransformingGraphics | |
| 318 | * @param g | |
| 319 | * @param v | |
| 320 | * @param label | |
| 321 | * @param x | |
| 322 | * @param y | |
| 323 | */ | |
| 324 | protected void labelVertex(TransformingGraphics g, Vertex v, String label, int x, int y) { | |
| 325 | 0 | Component component = prepareRenderer(getGraphLabelRenderer(), label, isPicked(v), v); |
| 326 | 0 | Font font = getVertexFontFunction().getFont(v); |
| 327 | 0 | if (font != null) |
| 328 | 0 | component.setFont(font); |
| 329 | ||
| 330 | 0 | Dimension d = component.getPreferredSize(); |
| 331 | ||
| 332 | 0 | Point2D p = g.getTransformer().transform(new Point2D.Float(x, y)); |
| 333 | 0 | x = (int)p.getX(); |
| 334 | 0 | y = (int)p.getY(); |
| 335 | ||
| 336 | int h_offset; | |
| 337 | int v_offset; | |
| 338 | 0 | if (getVertexLabelCentering()) |
| 339 | { | |
| 340 | 0 | h_offset = -d.width / 2; |
| 341 | 0 | v_offset = -d.height / 2; |
| 342 | ||
| 343 | } | |
| 344 | else | |
| 345 | { | |
| 346 | 0 | Rectangle2D bounds = getVertexShapeFunction().getShape(v).getBounds2D(); |
| 347 | 0 | h_offset = (int)(bounds.getWidth() / 2) + 5; |
| 348 | 0 | v_offset = (int)(bounds.getHeight() / 2) + 5 -d.height; |
| 349 | } | |
| 350 | ||
| 351 | 0 | getRendererPane().paintComponent(g.getDelegate(), component, getScreenDevice(), x+h_offset, y+v_offset, |
| 352 | d.width, d.height, true); | |
| 353 | ||
| 354 | 0 | } |
| 355 | ||
| 356 | /** | |
| 357 | * overridded to wrap passed Graphics in TransformingGraphics then call | |
| 358 | * overloaded paintEdge | |
| 359 | */ | |
| 360 | public void paintEdge(Graphics g, Edge e, int x1, int y1, int x2, int y2) { | |
| 361 | 0 | this.tg2d.setDelegate((Graphics2D)g); |
| 362 | 0 | paintEdge(tg2d, e, x1, y1, x2, y2); |
| 363 | 0 | } |
| 364 | /** | |
| 365 | * overloaded to use TransformingGraphics | |
| 366 | * @param g2d | |
| 367 | * @param e | |
| 368 | * @param x1 | |
| 369 | * @param y1 | |
| 370 | * @param x2 | |
| 371 | * @param y2 | |
| 372 | */ | |
| 373 | public void paintEdge(TransformingGraphics g2d, Edge e, int x1, int y1, int x2, int y2) { | |
| 374 | 0 | if (!getEdgeIncludePredicate().evaluate(e)) |
| 375 | 0 | return; |
| 376 | ||
| 377 | // don't draw edge if either incident vertex is not drawn | |
| 378 | 0 | Pair endpoints = e.getEndpoints(); |
| 379 | 0 | Vertex v1 = (Vertex)endpoints.getFirst(); |
| 380 | 0 | Vertex v2 = (Vertex)endpoints.getSecond(); |
| 381 | 0 | if (!getVertexIncludePredicate().evaluate(v1) || |
| 382 | !getVertexIncludePredicate().evaluate(v2)) | |
| 383 | 0 | return; |
| 384 | ||
| 385 | 0 | Stroke new_stroke = getEdgeStrokeFunction().getStroke(e); |
| 386 | 0 | Stroke old_stroke = g2d.getStroke(); |
| 387 | 0 | if (new_stroke != null) |
| 388 | 0 | g2d.setStroke(new_stroke); |
| 389 | ||
| 390 | 0 | drawSimpleEdge(g2d, e, x1, y1, x2, y2); |
| 391 | ||
| 392 | // restore paint and stroke | |
| 393 | 0 | if (new_stroke != null) |
| 394 | 0 | g2d.setStroke(old_stroke); |
| 395 | ||
| 396 | 0 | } |
| 397 | ||
| 398 | /** | |
| 399 | * overridden to wrap passed Graphics in TransformingGraphics then | |
| 400 | * call overloaded paintVertex | |
| 401 | */ | |
| 402 | public void paintVertex(Graphics g, Vertex v, int x, int y) { | |
| 403 | 0 | tg2d.setDelegate((Graphics2D)g); |
| 404 | 0 | paintVertex(tg2d, v, x, y); |
| 405 | 0 | } |
| 406 | /** | |
| 407 | * overloaded to use TransformingGraphics | |
| 408 | * @param g2d | |
| 409 | * @param v | |
| 410 | * @param x | |
| 411 | * @param y | |
| 412 | */ | |
| 413 | public void paintVertex(TransformingGraphics g2d, Vertex v, int x, int y) { | |
| 414 | 0 | if (!getVertexIncludePredicate().evaluate(v)) |
| 415 | 0 | return; |
| 416 | ||
| 417 | 0 | boolean vertexHit = true; |
| 418 | 0 | Rectangle deviceRectangle = null; |
| 419 | 0 | if(getScreenDevice() != null) { |
| 420 | 0 | Dimension d = getScreenDevice().getSize(); |
| 421 | 0 | deviceRectangle = new Rectangle(0,0,d.width,d.height); |
| 422 | } | |
| 423 | ||
| 424 | 0 | Stroke old_stroke = g2d.getStroke(); |
| 425 | 0 | Stroke new_stroke = getVertexStrokeFunction().getStroke(v); |
| 426 | 0 | if (new_stroke != null) { |
| 427 | 0 | g2d.setStroke(new_stroke); |
| 428 | } | |
| 429 | // get the shape to be rendered | |
| 430 | 0 | Shape s = getVertexShapeFunction().getShape(v); |
| 431 | ||
| 432 | // create a transform that translates to the location of | |
| 433 | // the vertex to be rendered | |
| 434 | 0 | AffineTransform xform = AffineTransform.getTranslateInstance(x,y); |
| 435 | // transform the vertex shape with xtransform | |
| 436 | 0 | s = xform.createTransformedShape(s); |
| 437 | ||
| 438 | ||
| 439 | 0 | vertexHit = g2d.hit(deviceRectangle, s, true); |
| 440 | ||
| 441 | 0 | if (vertexHit) { |
| 442 | 0 | VertexIconFunction imager = getVertexIconFunction(); |
| 443 | ||
| 444 | 0 | Icon icon = null; |
| 445 | 0 | if (imager != null && (icon = imager.getIcon(v)) != null) { |
| 446 | 0 | paintIconForVertex(g2d, icon, x, y); |
| 447 | } else { | |
| 448 | 0 | paintShapeForVertex(g2d, v, s); |
| 449 | } | |
| 450 | ||
| 451 | 0 | if (new_stroke != null) { |
| 452 | 0 | g2d.setStroke(old_stroke); |
| 453 | } | |
| 454 | 0 | String label = getVertexStringer().getLabel(v); |
| 455 | 0 | if (label != null) { |
| 456 | 0 | labelVertex(g2d, v, label, x, y); |
| 457 | } | |
| 458 | } | |
| 459 | 0 | } |
| 460 | ||
| 461 | protected void paintShapeForVertex(TransformingGraphics g2d, Vertex v, Shape shape) { | |
| 462 | 0 | Paint oldPaint = g2d.getPaint(); |
| 463 | 0 | Paint fillPaint = getVertexPaintFunction().getFillPaint(v); |
| 464 | 0 | if(fillPaint != null) { |
| 465 | 0 | g2d.setPaint(fillPaint); |
| 466 | 0 | g2d.fill(shape); |
| 467 | 0 | g2d.setPaint(oldPaint); |
| 468 | } | |
| 469 | 0 | Paint drawPaint = getVertexPaintFunction().getDrawPaint(v); |
| 470 | 0 | if(drawPaint != null) { |
| 471 | 0 | g2d.setPaint(drawPaint); |
| 472 | 0 | g2d.draw(shape); |
| 473 | 0 | g2d.setPaint(oldPaint); |
| 474 | } | |
| 475 | 0 | } |
| 476 | ||
| 477 | public void paintIconForVertex(TransformingGraphics g, Icon icon, int x, int y) { | |
| 478 | 0 | if(icon != null) { |
| 479 | 0 | int xLoc = x - icon.getIconWidth()/2; |
| 480 | 0 | int yLoc = y - icon.getIconHeight()/2; |
| 481 | 0 | icon.paintIcon(getScreenDevice(), g.getDelegate(), xLoc, yLoc); |
| 482 | } | |
| 483 | 0 | } |
| 484 | } |
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