1 /*******************************************************************************
2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
4 * All rights reserved. This program and the accompanying materials
5 * are made available under the terms of the Eclipse Public License v1.0
6 * which accompanies this distribution, and is available at
7 * http://www.eclipse.org/legal/epl-v10.html
10 * VTT Technical Research Centre of Finland - initial API and implementation
11 *******************************************************************************/
12 package org.simantics.g2d.gallery;
14 import java.awt.Color;
15 import java.awt.Component;
17 import java.awt.FontMetrics;
18 import java.awt.Paint;
19 import java.awt.Shape;
20 import java.awt.TexturePaint;
21 import java.awt.geom.Rectangle2D;
22 import java.awt.image.BufferedImage;
23 import java.util.ArrayList;
24 import java.util.Arrays;
25 import java.util.Collections;
26 import java.util.HashSet;
27 import java.util.List;
29 import java.util.concurrent.Semaphore;
30 import java.util.concurrent.TimeUnit;
31 import java.util.function.Consumer;
33 import org.eclipse.jface.resource.FontRegistry;
34 import org.eclipse.jface.util.IPropertyChangeListener;
35 import org.eclipse.jface.util.PropertyChangeEvent;
36 import org.eclipse.jface.viewers.ContentViewer;
37 import org.eclipse.jface.viewers.ISelection;
38 import org.eclipse.jface.viewers.IStructuredContentProvider;
39 import org.eclipse.jface.viewers.IStructuredSelection;
40 import org.eclipse.jface.viewers.StructuredSelection;
41 import org.eclipse.jface.viewers.ViewerFilter;
42 import org.eclipse.swt.SWT;
43 import org.eclipse.swt.events.ControlEvent;
44 import org.eclipse.swt.events.ControlListener;
45 import org.eclipse.swt.graphics.FontData;
46 import org.eclipse.swt.graphics.Point;
47 import org.eclipse.swt.widgets.Composite;
48 import org.eclipse.swt.widgets.Control;
49 import org.eclipse.swt.widgets.Display;
50 import org.eclipse.swt.widgets.Event;
51 import org.eclipse.swt.widgets.Listener;
52 import org.simantics.g2d.canvas.Hints;
53 import org.simantics.g2d.canvas.ICanvasContext;
54 import org.simantics.g2d.canvas.impl.CanvasContext;
55 import org.simantics.g2d.chassis.SWTChassis;
56 import org.simantics.g2d.diagram.DiagramClass;
57 import org.simantics.g2d.diagram.DiagramHints;
58 import org.simantics.g2d.diagram.IDiagram;
59 import org.simantics.g2d.diagram.handler.DataElementMap;
60 import org.simantics.g2d.diagram.handler.PickRequest.PickPolicy;
61 import org.simantics.g2d.diagram.handler.layout.FlowLayout;
62 import org.simantics.g2d.diagram.impl.Diagram;
63 import org.simantics.g2d.diagram.participant.DiagramParticipant;
64 import org.simantics.g2d.diagram.participant.ElementInteractor;
65 import org.simantics.g2d.diagram.participant.ElementPainter;
66 import org.simantics.g2d.diagram.participant.Selection;
67 import org.simantics.g2d.diagram.participant.pointertool.PointerInteractor;
68 import org.simantics.g2d.dnd.IDragSourceParticipant;
69 import org.simantics.g2d.dnd.IDropTargetParticipant;
70 import org.simantics.g2d.element.ElementClass;
71 import org.simantics.g2d.element.ElementHints;
72 import org.simantics.g2d.element.ElementUtils;
73 import org.simantics.g2d.element.IElement;
74 import org.simantics.g2d.element.handler.Clickable;
75 import org.simantics.g2d.element.handler.Resize;
76 import org.simantics.g2d.element.handler.impl.DefaultTransform;
77 import org.simantics.g2d.element.handler.impl.Resizeable;
78 import org.simantics.g2d.element.handler.impl.TextImpl;
79 import org.simantics.g2d.element.impl.Element;
80 import org.simantics.g2d.image.Image;
81 import org.simantics.g2d.image.Image.Feature;
82 import org.simantics.g2d.image.Image.ImageListener;
83 import org.simantics.g2d.image.impl.Shadow.ShadowParameters;
84 import org.simantics.g2d.participant.BackgroundPainter;
85 import org.simantics.g2d.participant.KeyToCommand;
86 import org.simantics.g2d.participant.KeyUtil;
87 import org.simantics.g2d.participant.MouseUtil;
88 import org.simantics.g2d.participant.SymbolUtil;
89 import org.simantics.g2d.participant.TransformUtil;
90 import org.simantics.g2d.tooltip.TooltipParticipant;
91 import org.simantics.g2d.utils.FontHelper;
92 import org.simantics.scenegraph.g2d.G2DParentNode;
93 import org.simantics.scenegraph.g2d.events.command.CommandKeyBinding;
94 import org.simantics.scenegraph.g2d.nodes.ShapeNode;
95 import org.simantics.scenegraph.utils.GeometryUtils;
96 import org.simantics.scenegraph.utils.TextUtil;
97 import org.simantics.utils.datastructures.hints.IHintContext;
98 import org.simantics.utils.datastructures.hints.IHintContext.Key;
99 import org.simantics.utils.datastructures.hints.IHintContext.KeyOf;
100 import org.simantics.utils.threads.AWTThread;
101 import org.simantics.utils.threads.IThreadWorkQueue;
102 import org.simantics.utils.threads.SWTThread;
103 import org.simantics.utils.threads.ThreadUtils;
104 import org.simantics.utils.threads.logger.ITask;
105 import org.simantics.utils.threads.logger.ThreadLogger;
106 import org.slf4j.Logger;
107 import org.slf4j.LoggerFactory;
108 import org.simantics.utils.ui.SWTDPIUtil;
111 * @author Toni Kalajainen <toni.kalajainen@vtt.fi>
112 * @author Tuukka Lehtonen
114 public class GalleryViewer extends ContentViewer {
116 private static final Logger LOGGER = LoggerFactory.getLogger(GalleryViewer.class);
118 * A hint key for storing a GalleryViewer within the hint stack of
119 * {@link GalleryViewer}'s {@link ICanvasContext}.
121 public static final Key KEY_VIEWER = new KeyOf(GalleryViewer.class, "GALLERY_VIEWER");
123 public static final ShadowParameters SHADOW = new ShadowParameters(0.5, Color.BLACK, 5);
126 IThreadWorkQueue swtThread;
129 Component awtComponent;
132 GalleryItemPainter itemPainter;
135 Rectangle2D itemSize = new Rectangle2D.Double(0, 0, 50, 50);
136 Rectangle2D maxItemSize = itemSize.getBounds2D();
137 FlowLayout fl = new FlowLayout();
140 ElementClass itemClass;
141 FontRegistry fontRegistry;
142 Font currentItemFont;
144 GalleryTooltipProvider tooltipProvider = new GalleryTooltipProvider();
146 /** Background paint */
147 public static final Paint BG_PAINT;
149 // Create checkerboard pattern paint with 5x5 square size
150 BufferedImage bi = new BufferedImage(2, 2, BufferedImage.TYPE_INT_ARGB);
151 for (int x = 0; x < 2; ++x)
152 for (int y = 0; y < 2; ++y)
153 bi.setRGB(x, y, (((x ^ y) & 1) == 0) ? 0xffffffff : 0xfffdfdfd);
154 BG_PAINT = new TexturePaint(bi, new Rectangle2D.Double(0, 0, 10, 10));
155 //BG_PAINT = Color.WHITE;
158 public GalleryViewer(Composite composite) {
162 public GalleryViewer(Composite composite, int style) {
164 display = composite.getDisplay();
165 swtThread = SWTThread.getThreadAccess(composite);
166 chassis = new SWTChassis(composite, style) {
168 public Point computeSize(int wHint, int hHint, boolean changed) {
170 return super.computeSize(wHint, hHint, changed);
172 // Note: This code must take into account that FlowLayout expects to
173 // receive pixel coordinates, not SWT API coordinates.
177 // rect = ElementUtils.getSurroundingElementBoundsOnDiagram(diagram.getSnapshot());
181 Double wH = wHint==SWT.DEFAULT ? null : (double) SWTDPIUtil.upscaleSwt(wHint)-hMargin*2;
182 Double hH = hHint==SWT.DEFAULT ? null : (double) SWTDPIUtil.upscaleSwt(hHint)-vMargin*2;
183 rect = fl.computeSize(diagram, wH, hH);
184 SWTDPIUtil.downscaleSwt(rect, rect);
186 return new Point((int)rect.getWidth()+hMargin*2, (int)rect.getHeight()+vMargin*2);
190 // Create IDiagram for gallery
191 this.diagram = Diagram.spawnNew(DiagramClass.DEFAULT);
192 diagram.setHint(FlowLayout.HGAP, 5.0);
193 diagram.setHint(FlowLayout.VGAP, 5.0);
194 diagram.setHint(DiagramHints.KEY_ELEMENT_RASTER_TARGET_SIZE,
195 new java.awt.Point((int) itemSize.getWidth(), (int) itemSize.getHeight()));
197 // Create canvas context here in SWT thread but do not initialize it yet.
198 this.ctx = new CanvasContext(AWTThread.getThreadAccess());
200 chassis.populate(parameter -> {
201 awtComponent = parameter.getAWTComponent();
203 // Initialize the canvas context
204 ITask task = ThreadLogger.getInstance().begin("createCanvas");
205 initializeCanvasContext(ctx);
208 // Initialize canvas context hint context with KEY_VIEWER key.
209 IHintContext hintCtx = ctx.getDefaultHintContext();
210 hintCtx.setHint(KEY_VIEWER, GalleryViewer.this);
212 // Set IDiagram for canvas context
213 hintCtx.setHint(DiagramHints.KEY_DIAGRAM, diagram);
216 ThreadUtils.asyncExec(swtThread, () -> resized(false));
219 chassis.addControlListener(new ControlListener() {
221 public void controlMoved(ControlEvent e) {}
223 public void controlResized(ControlEvent e) {
227 ITask task2 = ThreadLogger.getInstance().begin("fonts");
229 this.fontRegistry = FontHelper.getCurrentThemeFontRegistry();
230 fontRegistry.addListener(fontRegistryListener);
231 currentItemFont = FontHelper.toAwt(fontRegistry, "org.simantics.gallery.itemfont");
232 } catch (IllegalStateException e) {
233 // No workbench available, use SWT control fonts for viewer items.
234 org.eclipse.swt.graphics.Font f = chassis.getFont();
235 currentItemFont = FontHelper.toAwt(f.getFontData()[0]);
240 itemClass = ElementClass.compile(
241 DefaultTransform.INSTANCE,
243 //TextAsTooltip.INSTANCE,
245 Resizeable.UNCONSTRICTED,
246 new GalleryItemSGNode(currentItemFont)
249 chassis.addListener(SWT.Dispose, new Listener() {
251 public void handleEvent(Event event) {
252 if (fontRegistry != null)
253 fontRegistry.removeListener(fontRegistryListener);
255 // Prevent memory leaks.
256 ThreadUtils.asyncExec(ctx.getThreadAccess(), () -> {
257 chassis.getAWTComponent().setCanvasContext(null);
264 IPropertyChangeListener fontRegistryListener = new IPropertyChangeListener() {
266 public void propertyChange(PropertyChangeEvent event) {
267 FontData fdn = ((FontData[]) event.getNewValue())[0];
268 //System.out.println(event.getSource() + ": font changed: " + event.getProperty() + ": " + fdn);
269 currentItemFont = FontHelper.toAwt(fdn);
270 itemClass.getSingleItem(GalleryItemSGNode.class).setFont(currentItemFont);
271 // FIXME: a bug exists in this case. The group size will not be refreshed even though the sizes of the gallery items are recalculated and changed.
272 ThreadUtils.asyncExec(swtThread, () -> resized(true));
277 * Set alignment of elements (left, right, center, fill)
280 public void setAlign(FlowLayout.Align align) {
281 diagram.setHint(FlowLayout.ALIGN, align);
286 * Sets the content filter of this viewer. The filter will be invoked after
287 * getting input data elements from the content provider and before setting
288 * the new content for the viewer. Any previously set filter will be
292 * This method will not refresh the viewer, this needs to be done separately
293 * using {@link #refresh()} or {@link #refresh(Consumer)}.
296 * @param filter the new filter
298 public void setFilter(ViewerFilter filter) {
299 if (filter == this.filter || (filter != null && filter.equals(this.filter)))
302 this.filter = filter;
305 public ViewerFilter getFilter() {
309 private void resized() {
313 private void resized(final boolean refreshElementSizes) {
314 //System.out.println(this + ".resized(" + refreshElementSizes + ")");
315 if (chassis.isDisposed())
317 org.eclipse.swt.graphics.Rectangle b = SWTDPIUtil.upscaleSwt(chassis.getBounds());
318 //System.out.println("chassis bounds: " + b);
319 final Rectangle2D bounds = new Rectangle2D.Double(hMargin, vMargin, b.width-hMargin*2, b.height-vMargin*2);
320 ctx.getThreadAccess().asyncExec(() -> {
321 if (ctx.isDisposed())
325 //System.out.println(this + ".resized(" + refreshElementSizes + ") AWT update");
326 if (refreshElementSizes)
327 refreshElementSizes();
328 fl.layout(diagram, bounds);
330 // Makes sure RTreeNode is marked dirty and everything is
331 // properly repainted.
332 if (itemPainter != null)
333 itemPainter.updateAll();
334 ctx.getContentContext().setDirty();
339 * Invoke only from AWT thread.
344 private void initializeCanvasContext(final CanvasContext canvasContext) {
345 // Create canvas context and a layer of interactors
346 final IHintContext h = canvasContext.getDefaultHintContext();
348 // Support & Util Participants
349 canvasContext.add( new TransformUtil() );
351 canvasContext.add( new MouseUtil() );
352 canvasContext.add( new KeyUtil() );
353 canvasContext.add( new SymbolUtil() );
355 // Grid & Ruler & Background
356 h.setHint(Hints.KEY_BACKGROUND_PAINT, BG_PAINT);
357 canvasContext.add( new BackgroundPainter() );
360 canvasContext.add( new KeyToCommand( CommandKeyBinding.DEFAULT_BINDINGS ) );
362 ////// Diagram Participants //////
363 PointerInteractor pi = new PointerInteractor(true, true, false, true, false, null);
364 pi.setBoxSelectMode(PickPolicy.PICK_INTERSECTING_OBJECTS);
365 canvasContext.add( pi );
366 canvasContext.add( selection = new Selection() );
367 canvasContext.add( new DiagramParticipant() );
368 canvasContext.add( itemPainter = new GalleryItemPainter() );
369 canvasContext.add( new ElementInteractor() );
370 canvasContext.add( new TooltipParticipant());
372 h.setHint(ElementPainter.KEY_SELECTION_FRAME_COLOR, Color.WHITE);
373 h.setHint(ElementPainter.KEY_SELECTION_CONTENT_COLOR, new Color(0.7f, 0.7f, 1.f, 0.5f));
374 h.setHint(Hints.KEY_TOOL, Hints.POINTERTOOL);
376 // Adds DragInteractor & DropInteractor
378 // therefore has to be done before assertParticipantDependencies.
379 // Also, this must be invoked BEFORE SWTChassis chassis.setCanvasContext
380 // because otherwise setCanvasContext would be ran in the
381 // wrong thread (SWT) for AWTChassis.
382 chassis.getAWTComponent().setCanvasContext(canvasContext);
384 swtThread.asyncExec(() -> {
385 if (!chassis.isDisposed())
386 chassis.setCanvasContext(canvasContext);
389 canvasContext.assertParticipantDependencies();
393 public Control getControl() {
398 protected void inputChanged(Object input, Object oldInput) {
399 // Skip automatic refreshing at setInput to allow room for manual
400 // optimization in the client.
405 public ISelection getSelection() {
406 Set<IElement> sel = selection.getSelection(0);
408 return StructuredSelection.EMPTY;
409 List<Object> elements = new ArrayList<Object>(sel.size());
410 for (IElement e : sel)
411 elements.add(e.getHint(ElementHints.KEY_OBJECT));
412 return new StructuredSelection(elements);
415 @SuppressWarnings("unchecked")
417 public void setSelection(ISelection selection, boolean reveal) {
418 List<Object> selectedObjects = Collections.EMPTY_LIST;
419 if (selection instanceof IStructuredSelection) {
420 selectedObjects = ((IStructuredSelection) selection).toList();
423 DataElementMap map = diagram.getDiagramClass().getSingleItem(DataElementMap.class);
424 List<IElement> selectionElements = new ArrayList<IElement>();
425 for (Object o : selectedObjects)
426 selectionElements.add( map.getElement(diagram, o) );
428 this.selection.setSelection(0, selectionElements);
432 * Refreshes this viewer completely with information freshly obtained from this
436 public void refresh() {
440 public Object[] getFilteredElements() {
441 IStructuredContentProvider cp = (IStructuredContentProvider) getContentProvider();
443 return new Object[0];
445 Object[] elements = cp.getElements( getInput() );
446 Object[] filtered = filter( elements );
450 protected Object[] filter(Object[] items) {
451 if (filter != null) {
452 ArrayList<Object> filtered = new ArrayList<Object>(items.length);
453 Object root = getInput();
454 for (int i = 0; i < items.length; i++) {
455 if (!filter.select(this, root, items[i]))
457 filtered.add(items[i]);
459 return filtered.toArray();
465 * @param contentCallback a callback for receiving the final filtered
466 * elements left visible
468 public void refresh(Consumer<Object[]> contentCallback) {
469 //System.out.println(this + ".refresh(" + contentCallback + ")");
470 Object[] elements = getFilteredElements();
471 refreshWithContent(elements);
472 if (contentCallback != null) {
473 contentCallback.accept(elements);
478 * Set viewer contents to the specified objects.
479 * This method must be invoked from the SWT thread.
483 public void refreshWithContent(final Object[] objects) {
484 if (!swtThread.currentThreadAccess())
485 throw new IllegalStateException("Not invoked from SWT thread");
487 //System.out.println(this + ".refreshWithContent(" + Arrays.toString(objects) + ")");
489 final Semaphore barrier = new Semaphore(0);
490 IThreadWorkQueue t = ctx.getThreadAccess();
491 ThreadUtils.asyncExec(t, new Runnable() {
501 public void perform() {
502 // $AWT-Thread-Begin$
503 //System.out.println(this + ".refreshWithContent(" + Arrays.toString(objects) + ") AWT WORK");
505 Object[] objectsCopy = Arrays.copyOf(objects, objects.length);
507 Set<Object> objs = new HashSet<Object>();
508 for (Object o : objectsCopy)
512 for (IElement e : diagram.getSnapshot()) {
513 Object backendObject = e.getHint(ElementHints.KEY_OBJECT);
514 if (!objs.remove(backendObject)) {
515 //System.out.println("Removing " + e);
516 diagram.removeElement(e);
519 for (int i = 0; i < objectsCopy.length; i++)
520 if (!objs.contains(objectsCopy[i]))
521 objectsCopy[i] = null;
523 // 2. Add new elements
524 for (Object o : objectsCopy) {
528 IElement e = Element.spawnNew(itemClass);
529 e.setHint(ElementHints.KEY_OBJECT, o);
530 // e.getElementClass().getSingleItem(Resize.class).resize(e, itemSize);
531 ILabelProvider lp = (ILabelProvider) getLabelProvider();
532 Image i = lp.getImage(o);
533 if (i.getFeatures().contains(Feature.Volatile))
534 i.addImageListener(imageListener);
535 e.setHint(GalleryItemSGNode.KEY_IMAGE, i);
538 String tooltipText = lp.getToolTipText(o);
539 java.awt.Image tooltipImage = lp.getToolTipImage(o);
540 if (tooltipText != null || tooltipImage != null) {
541 e.setHint(TooltipParticipant.TOOLTIP_KEY, tooltipProvider);
542 if (tooltipText != null)
543 e.setHint(GalleryTooltipProvider.TOOLTIP_TEXT, tooltipText);
544 if (tooltipImage != null)
545 e.setHint(GalleryTooltipProvider.TOOLTIP_IMAGE, tooltipImage);
547 diagram.addElement(e);
549 e.getElementClass().getSingleItem(GalleryItemSGNode.class).update(e);
551 // Image si = ImageUtils.createShadow(i, SHADOW, (int) itemSize.getWidth(), (int) itemSize.getHeight());
552 // si = ImageUtils.createBuffer(si);
553 // e.setHint(GalleryItemPainter.KEY_IMAGE_SHADOW, si);
555 ElementUtils.setText(e, lp.getText(o));
556 //System.out.println("Added: " + e);
559 // 3. Calculate maximum vertical space needed by current diagram element texts
560 refreshElementSizes();
562 ThreadUtils.asyncExec(swtThread, () -> resized(false));
567 boolean done = false;
570 done = barrier.tryAcquire(10, TimeUnit.MILLISECONDS);
571 while (!done && display.readAndDispatch()) {
572 done = barrier.tryAcquire();
574 } catch (InterruptedException e) {
581 * Invoke from canvas context thread only.
583 void refreshElementSizes() {
584 if (awtComponent == null) {
585 LOGGER.error("GalleryViewer.refreshElementSizes: awtComponent is null");
589 //System.out.println(this + ".refreshElementSizes()");
590 // Calculate maximum vertical space needed by current diagram element texts
591 FontMetrics metrics = awtComponent.getFontMetrics(currentItemFont);
592 int fontHeight = metrics.getHeight();
593 Rectangle2D size = SWTDPIUtil.upscaleSwt(itemSize);
594 int maxWidth = (int) size.getWidth();
595 java.awt.Point targetSize = new java.awt.Point((int) size.getWidth(), (int) size.getHeight());
596 diagram.setHint(DiagramHints.KEY_ELEMENT_RASTER_TARGET_SIZE, targetSize);
597 int maxLinesNeeded = 0;
598 for (IElement el : diagram.getElements()) {
599 // This makes it possible to give the gallery item a reference size
600 // for caching rendered images in the correct size only.
601 // NOTE: currently this is not used in GalleryItemPainter since the
602 // target size is now propagated through the element class loading
603 // process through the diagram hint KEY_ELEMENT_RASTER_TARGET_SIZE.
604 el.setHint(GalleryItemSGNode.KEY_TARGET_IMAGE_SIZE, targetSize);
606 String text = ElementUtils.getText(el);
607 int linesNeeded = TextUtil.wordWrap(text, metrics, maxWidth).length;
608 maxLinesNeeded = Math.max(maxLinesNeeded, linesNeeded);
609 int textSpaceNeeded = fontHeight * linesNeeded + metrics.getMaxDescent();
610 Rectangle2D s = new Rectangle2D.Double(0, 0, size.getWidth(), size.getHeight() + textSpaceNeeded);
611 el.getElementClass().getSingleItem(Resize.class).resize(el, s);
612 //System.out.println(this + " lines needed: " + linesNeeded + " = " + s);
614 el.getElementClass().getSingleItem(GalleryItemSGNode.class).update(el);
616 int maxTextSpaceNeeded = fontHeight * maxLinesNeeded + metrics.getMaxDescent();
617 maxItemSize = new Rectangle2D.Double(0, 0, size.getWidth(), size.getHeight() + maxTextSpaceNeeded);
618 //System.out.println(this + "[" + diagram.getElements().size() + "]: max lines needed: " + maxLinesNeeded + " = " + fontHeight*maxLinesNeeded + " pixels");
621 ImageListener imageListener = new ImageListener() {
623 public void onContentChangedNotification(Image image) {
624 //System.out.println(Thread.currentThread() + ": contentChanged(" + image + ")");
625 // Update the image of the element if the element is found.
626 for (final IElement el : diagram.getSnapshot()) {
627 Image i = GalleryItemSGNode.getImage(el);
631 ctx.getThreadAccess().asyncExec(() -> {
632 //System.out.println(Thread.currentThread() + ": update scene graph(" + el + ")");
633 // Update scene graph and repaint.
634 el.getElementClass().getSingleItem(GalleryItemSGNode.class).update(el);
635 ctx.getContentContext().setDirty();
642 public void addDropSupport(final IDropTargetParticipant p) {
643 if (ctx.getThreadAccess().currentThreadAccess()) {
646 ctx.getThreadAccess().asyncExec(() -> {
647 if (!ctx.isDisposed())
653 public void addDragSupport(final IDragSourceParticipant p) {
654 if (ctx.getThreadAccess().currentThreadAccess()) {
657 ctx.getThreadAccess().asyncExec(() -> {
658 if (!ctx.isDisposed())
664 public CanvasContext getCanvasContext() {
668 public IDiagram getDiagram() {
672 //private final static Color BG_COLOR = new Color(0.3f, 0.3f, 1.0f, 0.35f);
674 static class GalleryItemPainter extends ElementPainter {
676 public void paintSelectionFrame(G2DParentNode elementNode, G2DParentNode selectionNode, IElement e, Color color) {
677 final Shape outline = ElementUtils.getElementBoundsOnDiagram(e);
678 Rectangle2D bounds = outline.getBounds2D();
679 GeometryUtils.expandRectangle(bounds, 2, 2, 2, 2);
681 ShapeNode shapenode = selectionNode.getOrCreateNode("shape_"+e.hashCode(), ShapeNode.class);
682 shapenode.setShape(bounds);
683 shapenode.setColor(new Color(0.3f, 0.3f, 1.0f, 0.25f));
684 shapenode.setFill(true);
686 // Paint selection before anything else in elementNode
687 selectionNode.setZIndex(Integer.MIN_VALUE);