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;
110 * @author Toni Kalajainen <toni.kalajainen@vtt.fi>
111 * @author Tuukka Lehtonen
113 public class GalleryViewer extends ContentViewer {
115 private static final Logger LOGGER = LoggerFactory.getLogger(GalleryViewer.class);
117 * A hint key for storing a GalleryViewer within the hint stack of
118 * {@link GalleryViewer}'s {@link ICanvasContext}.
120 public static final Key KEY_VIEWER = new KeyOf(GalleryViewer.class, "GALLERY_VIEWER");
122 public static final ShadowParameters SHADOW = new ShadowParameters(0.5, Color.BLACK, 5);
125 IThreadWorkQueue swtThread;
128 Component awtComponent;
131 GalleryItemPainter itemPainter;
134 Rectangle2D itemSize = new Rectangle2D.Double(0, 0, 50, 50);
135 Rectangle2D maxItemSize = itemSize.getBounds2D();
136 FlowLayout fl = new FlowLayout();
139 ElementClass itemClass;
140 FontRegistry fontRegistry;
141 Font currentItemFont;
143 GalleryTooltipProvider tooltipProvider = new GalleryTooltipProvider();
145 /** Background paint */
146 public static final Paint BG_PAINT;
148 // Create checkerboard pattern paint with 5x5 square size
149 BufferedImage bi = new BufferedImage(2, 2, BufferedImage.TYPE_INT_ARGB);
150 for (int x = 0; x < 2; ++x)
151 for (int y = 0; y < 2; ++y)
152 bi.setRGB(x, y, (((x ^ y) & 1) == 0) ? 0xffffffff : 0xfffdfdfd);
153 BG_PAINT = new TexturePaint(bi, new Rectangle2D.Double(0, 0, 10, 10));
154 //BG_PAINT = Color.WHITE;
157 public GalleryViewer(Composite composite) {
161 public GalleryViewer(Composite composite, int style) {
163 display = composite.getDisplay();
164 swtThread = SWTThread.getThreadAccess(composite);
165 chassis = new SWTChassis(composite, style) {
167 public Point computeSize(int wHint, int hHint, boolean changed) {
168 // System.out.println("chassis compute size: " + wHint + ", " + hHint + ", " + changed);
171 return super.computeSize(wHint, hHint, changed);
175 // rect = ElementUtils.getSurroundingElementBoundsOnDiagram(diagram.getSnapshot());
179 Double wH = wHint==SWT.DEFAULT ? null : (double) wHint-vMargin-vMargin;
180 Double hH = hHint==SWT.DEFAULT ? null : (double) hHint-hMargin-hMargin;
181 rect = fl.computeSize(diagram, wH, hH);
183 return new Point((int)rect.getMaxX()+hMargin*2, (int)rect.getMaxY()+vMargin*2);
187 // Create IDiagram for gallery
188 this.diagram = Diagram.spawnNew(DiagramClass.DEFAULT);
189 diagram.setHint(FlowLayout.HGAP, 5.0);
190 diagram.setHint(FlowLayout.VGAP, 5.0);
191 diagram.setHint(DiagramHints.KEY_ELEMENT_RASTER_TARGET_SIZE,
192 new java.awt.Point((int) itemSize.getWidth(), (int) itemSize.getHeight()));
194 // Create canvas context here in SWT thread but do not initialize it yet.
195 this.ctx = new CanvasContext(AWTThread.getThreadAccess());
197 chassis.populate(parameter -> {
198 awtComponent = parameter.getAWTComponent();
200 // Initialize the canvas context
201 ITask task = ThreadLogger.getInstance().begin("createCanvas");
202 initializeCanvasContext(ctx);
205 // Initialize canvas context hint context with KEY_VIEWER key.
206 IHintContext hintCtx = ctx.getDefaultHintContext();
207 hintCtx.setHint(KEY_VIEWER, GalleryViewer.this);
209 // Set IDiagram for canvas context
210 hintCtx.setHint(DiagramHints.KEY_DIAGRAM, diagram);
213 ThreadUtils.asyncExec(swtThread, new Runnable() {
221 chassis.addControlListener(new ControlListener() {
223 public void controlMoved(ControlEvent e) {}
225 public void controlResized(ControlEvent e) {
229 ITask task2 = ThreadLogger.getInstance().begin("fonts");
231 this.fontRegistry = FontHelper.getCurrentThemeFontRegistry();
232 fontRegistry.addListener(fontRegistryListener);
233 currentItemFont = FontHelper.toAwt(fontRegistry, "org.simantics.gallery.itemfont");
234 } catch (IllegalStateException e) {
235 // No workbench available, use SWT control fonts for viewer items.
236 org.eclipse.swt.graphics.Font f = chassis.getFont();
237 currentItemFont = FontHelper.toAwt(f.getFontData()[0]);
242 itemClass = ElementClass.compile(
243 DefaultTransform.INSTANCE,
245 //TextAsTooltip.INSTANCE,
247 Resizeable.UNCONSTRICTED,
248 new GalleryItemSGNode(currentItemFont)
251 chassis.addListener(SWT.Dispose, new Listener() {
253 public void handleEvent(Event event) {
254 if (fontRegistry != null)
255 fontRegistry.removeListener(fontRegistryListener);
257 // Prevent memory leaks.
258 ThreadUtils.asyncExec(ctx.getThreadAccess(), new Runnable() {
261 chassis.getAWTComponent().setCanvasContext(null);
269 IPropertyChangeListener fontRegistryListener = new IPropertyChangeListener() {
271 public void propertyChange(PropertyChangeEvent event) {
272 FontData fdn = ((FontData[]) event.getNewValue())[0];
273 //System.out.println(event.getSource() + ": font changed: " + event.getProperty() + ": " + fdn);
274 currentItemFont = FontHelper.toAwt(fdn);
275 itemClass.getSingleItem(GalleryItemSGNode.class).setFont(currentItemFont);
276 // 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.
277 ThreadUtils.asyncExec(swtThread, new Runnable() {
287 * Set alignment of elements (left, right, center, fill)
290 public void setAlign(FlowLayout.Align align) {
291 diagram.setHint(FlowLayout.ALIGN, align);
296 * Sets the content filter of this viewer. The filter will be invoked after
297 * getting input data elements from the content provider and before setting
298 * the new content for the viewer. Any previously set filter will be
302 * This method will not refresh the viewer, this needs to be done separately
303 * using {@link #refresh()} or {@link #refresh(Consumer)}.
306 * @param filter the new filter
308 public void setFilter(ViewerFilter filter) {
309 if (filter == this.filter || (filter != null && filter.equals(this.filter)))
312 this.filter = filter;
315 public ViewerFilter getFilter() {
319 private void resized() {
323 private void resized(final boolean refreshElementSizes) {
324 //System.out.println(this + ".resized(" + refreshElementSizes + ")");
325 if (chassis.isDisposed())
327 org.eclipse.swt.graphics.Rectangle b = chassis.getBounds();
328 final Rectangle2D bounds = new Rectangle2D.Double(hMargin, vMargin, b.width-hMargin*2, b.height-vMargin*2);
329 ctx.getThreadAccess().asyncExec(new Runnable() {
332 if (ctx.isDisposed())
336 //System.out.println(this + ".resized(" + refreshElementSizes + ") AWT update");
337 if (refreshElementSizes)
338 refreshElementSizes();
339 fl.layout(diagram, bounds);
341 // Makes sure RTreeNode is marked dirty and everything is
342 // properly repainted.
343 if (itemPainter != null)
344 itemPainter.updateAll();
345 ctx.getContentContext().setDirty();
350 * Invoke only from AWT thread.
355 private void initializeCanvasContext(final CanvasContext canvasContext) {
356 // Create canvas context and a layer of interactors
357 final IHintContext h = canvasContext.getDefaultHintContext();
359 // Support & Util Participants
360 canvasContext.add( new TransformUtil() );
362 canvasContext.add( new MouseUtil() );
363 canvasContext.add( new KeyUtil() );
364 canvasContext.add( new SymbolUtil() );
366 // Grid & Ruler & Background
367 h.setHint(Hints.KEY_BACKGROUND_PAINT, BG_PAINT);
368 canvasContext.add( new BackgroundPainter() );
371 canvasContext.add( new KeyToCommand( CommandKeyBinding.DEFAULT_BINDINGS ) );
373 ////// Diagram Participants //////
374 PointerInteractor pi = new PointerInteractor(true, true, false, true, false, null);
375 pi.setBoxSelectMode(PickPolicy.PICK_INTERSECTING_OBJECTS);
376 canvasContext.add( pi );
377 canvasContext.add( selection = new Selection() );
378 canvasContext.add( new DiagramParticipant() );
379 canvasContext.add( itemPainter = new GalleryItemPainter() );
380 canvasContext.add( new ElementInteractor() );
381 canvasContext.add( new TooltipParticipant());
383 h.setHint(ElementPainter.KEY_SELECTION_FRAME_COLOR, Color.WHITE);
384 h.setHint(ElementPainter.KEY_SELECTION_CONTENT_COLOR, new Color(0.7f, 0.7f, 1.f, 0.5f));
385 h.setHint(Hints.KEY_TOOL, Hints.POINTERTOOL);
387 // Adds DragInteractor & DropInteractor
389 // therefore has to be done before assertParticipantDependencies.
390 // Also, this must be invoked BEFORE SWTChassis chassis.setCanvasContext
391 // because otherwise setCanvasContext would be ran in the
392 // wrong thread (SWT) for AWTChassis.
393 chassis.getAWTComponent().setCanvasContext(canvasContext);
395 swtThread.asyncExec(new Runnable() {
398 if (!chassis.isDisposed())
399 chassis.setCanvasContext(canvasContext);
403 canvasContext.assertParticipantDependencies();
407 public Control getControl() {
412 protected void inputChanged(Object input, Object oldInput) {
413 // Skip automatic refreshing at setInput to allow room for manual
414 // optimization in the client.
419 public ISelection getSelection() {
420 Set<IElement> sel = selection.getSelection(0);
422 return StructuredSelection.EMPTY;
423 List<Object> elements = new ArrayList<Object>(sel.size());
424 for (IElement e : sel)
425 elements.add(e.getHint(ElementHints.KEY_OBJECT));
426 return new StructuredSelection(elements);
429 @SuppressWarnings("unchecked")
431 public void setSelection(ISelection selection, boolean reveal) {
432 List<Object> selectedObjects = Collections.EMPTY_LIST;
433 if (selection instanceof IStructuredSelection) {
434 selectedObjects = ((IStructuredSelection) selection).toList();
437 DataElementMap map = diagram.getDiagramClass().getSingleItem(DataElementMap.class);
438 List<IElement> selectionElements = new ArrayList<IElement>();
439 for (Object o : selectedObjects)
440 selectionElements.add( map.getElement(diagram, o) );
442 this.selection.setSelection(0, selectionElements);
446 * Refreshes this viewer completely with information freshly obtained from this
450 public void refresh() {
454 public Object[] getFilteredElements() {
455 IStructuredContentProvider cp = (IStructuredContentProvider) getContentProvider();
457 return new Object[0];
459 Object[] elements = cp.getElements( getInput() );
460 Object[] filtered = filter( elements );
464 protected Object[] filter(Object[] items) {
465 if (filter != null) {
466 ArrayList<Object> filtered = new ArrayList<Object>(items.length);
467 Object root = getInput();
468 for (int i = 0; i < items.length; i++) {
469 if (!filter.select(this, root, items[i]))
471 filtered.add(items[i]);
473 return filtered.toArray();
479 * @param contentCallback a callback for receiving the final filtered
480 * elements left visible
482 public void refresh(Consumer<Object[]> contentCallback) {
483 //System.out.println(this + ".refresh(" + contentCallback + ")");
484 Object[] elements = getFilteredElements();
485 refreshWithContent(elements);
486 if (contentCallback != null) {
487 contentCallback.accept(elements);
492 * Set viewer contents to the specified objects.
493 * This method must be invoked from the SWT thread.
497 public void refreshWithContent(final Object[] objects) {
498 if (!swtThread.currentThreadAccess())
499 throw new IllegalStateException("Not invoked from SWT thread");
501 //System.out.println(this + ".refreshWithContent(" + Arrays.toString(objects) + ")");
503 final Semaphore barrier = new Semaphore(0);
504 IThreadWorkQueue t = ctx.getThreadAccess();
505 ThreadUtils.asyncExec(t, new Runnable() {
515 public void perform() {
516 // $AWT-Thread-Begin$
517 //System.out.println(this + ".refreshWithContent(" + Arrays.toString(objects) + ") AWT WORK");
519 Object[] objectsCopy = Arrays.copyOf(objects, objects.length);
521 Set<Object> objs = new HashSet<Object>();
522 for (Object o : objectsCopy)
526 for (IElement e : diagram.getSnapshot()) {
527 Object backendObject = e.getHint(ElementHints.KEY_OBJECT);
528 if (!objs.remove(backendObject)) {
529 //System.out.println("Removing " + e);
530 diagram.removeElement(e);
533 for (int i = 0; i < objectsCopy.length; i++)
534 if (!objs.contains(objectsCopy[i]))
535 objectsCopy[i] = null;
537 // 2. Add new elements
538 for (Object o : objectsCopy) {
542 IElement e = Element.spawnNew(itemClass);
543 e.setHint(ElementHints.KEY_OBJECT, o);
544 // e.getElementClass().getSingleItem(Resize.class).resize(e, itemSize);
545 ILabelProvider lp = (ILabelProvider) getLabelProvider();
546 Image i = lp.getImage(o);
547 if (i.getFeatures().contains(Feature.Volatile))
548 i.addImageListener(imageListener);
549 e.setHint(GalleryItemSGNode.KEY_IMAGE, i);
552 String tooltipText = lp.getToolTipText(o);
553 java.awt.Image tooltipImage = lp.getToolTipImage(o);
554 if (tooltipText != null || tooltipImage != null) {
555 e.setHint(TooltipParticipant.TOOLTIP_KEY, tooltipProvider);
556 if (tooltipText != null)
557 e.setHint(GalleryTooltipProvider.TOOLTIP_TEXT, tooltipText);
558 if (tooltipImage != null)
559 e.setHint(GalleryTooltipProvider.TOOLTIP_IMAGE, tooltipImage);
561 diagram.addElement(e);
563 e.getElementClass().getSingleItem(GalleryItemSGNode.class).update(e);
565 // Image si = ImageUtils.createShadow(i, SHADOW, (int) itemSize.getWidth(), (int) itemSize.getHeight());
566 // si = ImageUtils.createBuffer(si);
567 // e.setHint(GalleryItemPainter.KEY_IMAGE_SHADOW, si);
569 ElementUtils.setText(e, lp.getText(o));
570 //System.out.println("Added: " + e);
573 // 3. Calculate maximum vertical space needed by current diagram element texts
574 refreshElementSizes();
576 ThreadUtils.asyncExec(swtThread, new Runnable() {
586 boolean done = false;
589 done = barrier.tryAcquire(10, TimeUnit.MILLISECONDS);
590 while (!done && display.readAndDispatch()) {
591 done = barrier.tryAcquire();
593 } catch (InterruptedException e) {
600 * Invoke from canvas context thread only.
602 void refreshElementSizes() {
603 if (awtComponent == null) {
604 LOGGER.error("GalleryViewer.refreshElementSizes: awtComponent is null");
608 //System.out.println(this + ".refreshElementSizes()");
609 // Calculate maximum vertical space needed by current diagram element texts
610 FontMetrics metrics = awtComponent.getFontMetrics(currentItemFont);
611 int fontHeight = metrics.getHeight();
612 int maxWidth = (int) itemSize.getWidth();
613 Rectangle2D size = itemSize;
614 java.awt.Point targetSize = new java.awt.Point((int) itemSize.getWidth(), (int) itemSize.getHeight());
615 diagram.setHint(DiagramHints.KEY_ELEMENT_RASTER_TARGET_SIZE, targetSize);
616 int maxLinesNeeded = 0;
617 for (IElement el : diagram.getElements()) {
618 // This makes it possible to give the gallery item a reference size
619 // for caching rendered images in the correct size only.
620 // NOTE: currently this is not used in GalleryItemPainter since the
621 // target size is now propagated through the element class loading
622 // process through the diagram hint KEY_ELEMENT_RASTER_REFERENCE_SIZE.
623 el.setHint(GalleryItemSGNode.KEY_TARGET_IMAGE_SIZE, targetSize);
625 String text = ElementUtils.getText(el);
626 int linesNeeded = TextUtil.wordWrap(text, metrics, maxWidth).length;
627 maxLinesNeeded = Math.max(maxLinesNeeded, linesNeeded);
628 int textSpaceNeeded = fontHeight * linesNeeded + metrics.getMaxDescent();
629 Rectangle2D s = new Rectangle2D.Double(0, 0, size.getWidth(), size.getHeight() + textSpaceNeeded);
630 el.getElementClass().getSingleItem(Resize.class).resize(el, s);
631 //System.out.println(this + " lines needed: " + linesNeeded + " = " + s);
633 el.getElementClass().getSingleItem(GalleryItemSGNode.class).update(el);
635 int maxTextSpaceNeeded = fontHeight * maxLinesNeeded + metrics.getMaxDescent();
636 maxItemSize = new Rectangle2D.Double(0, 0, size.getWidth(), size.getHeight() + maxTextSpaceNeeded);
637 //System.out.println(this + "[" + diagram.getElements().size() + "]: max lines needed: " + maxLinesNeeded + " = " + fontHeight*maxLinesNeeded + " pixels");
640 ImageListener imageListener = new ImageListener() {
642 public void onContentChangedNotification(Image image) {
643 //System.out.println(Thread.currentThread() + ": contentChanged(" + image + ")");
644 // Update the image of the element if the element is found.
645 for (final IElement el : diagram.getSnapshot()) {
646 Image i = GalleryItemSGNode.getImage(el);
650 ctx.getThreadAccess().asyncExec(new Runnable() {
653 //System.out.println(Thread.currentThread() + ": update scene graph(" + el + ")");
654 // Update scene graph and repaint.
655 el.getElementClass().getSingleItem(GalleryItemSGNode.class).update(el);
656 ctx.getContentContext().setDirty();
664 public void addDropSupport(final IDropTargetParticipant p) {
665 if (ctx.getThreadAccess().currentThreadAccess()) {
668 ctx.getThreadAccess().asyncExec(new Runnable() {
671 if (!ctx.isDisposed())
678 public void addDragSupport(final IDragSourceParticipant p) {
679 if (ctx.getThreadAccess().currentThreadAccess()) {
682 ctx.getThreadAccess().asyncExec(new Runnable() {
685 if (!ctx.isDisposed())
692 public CanvasContext getCanvasContext() {
696 public IDiagram getDiagram() {
700 //private final static Color BG_COLOR = new Color(0.3f, 0.3f, 1.0f, 0.35f);
702 static class GalleryItemPainter extends ElementPainter {
704 public void paintSelectionFrame(G2DParentNode elementNode, G2DParentNode selectionNode, IElement e, Color color) {
705 final Shape outline = ElementUtils.getElementBoundsOnDiagram(e);
706 Rectangle2D bounds = outline.getBounds2D();
707 GeometryUtils.expandRectangle(bounds, 2, 2, 2, 2);
709 ShapeNode shapenode = selectionNode.getOrCreateNode("shape_"+e.hashCode(), ShapeNode.class);
710 shapenode.setShape(bounds);
711 shapenode.setColor(new Color(0.3f, 0.3f, 1.0f, 0.25f));
712 shapenode.setFill(true);
714 // Paint selection before anything else in elementNode
715 selectionNode.setZIndex(Integer.MIN_VALUE);