-/*******************************************************************************\r
- * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
- * in Industry THTH ry.\r
- * All rights reserved. This program and the accompanying materials\r
- * are made available under the terms of the Eclipse Public License v1.0\r
- * which accompanies this distribution, and is available at\r
- * http://www.eclipse.org/legal/epl-v10.html\r
- *\r
- * Contributors:\r
- * VTT Technical Research Centre of Finland - initial API and implementation\r
- *******************************************************************************/\r
-package org.simantics.g2d.diagram.participant;\r
-\r
-import java.awt.BasicStroke;\r
-import java.awt.Color;\r
-import java.awt.Composite;\r
-import java.awt.Shape;\r
-import java.awt.geom.AffineTransform;\r
-import java.awt.geom.Point2D;\r
-import java.awt.geom.Rectangle2D;\r
-import java.nio.CharBuffer;\r
-import java.util.ArrayList;\r
-import java.util.Collection;\r
-import java.util.Collections;\r
-import java.util.HashMap;\r
-import java.util.HashSet;\r
-import java.util.Iterator;\r
-import java.util.List;\r
-import java.util.Map;\r
-import java.util.Random;\r
-import java.util.Set;\r
-import java.util.UUID;\r
-import java.util.concurrent.ConcurrentHashMap;\r
-import java.util.concurrent.ConcurrentMap;\r
-import java.util.function.Consumer;\r
-\r
-import org.simantics.g2d.canvas.Hints;\r
-import org.simantics.g2d.canvas.ICanvasContext;\r
-import org.simantics.g2d.canvas.impl.DependencyReflection.Dependency;\r
-import org.simantics.g2d.canvas.impl.DependencyReflection.Reference;\r
-import org.simantics.g2d.canvas.impl.HintReflection.HintListener;\r
-import org.simantics.g2d.canvas.impl.SGNodeReflection.SGCleanup;\r
-import org.simantics.g2d.canvas.impl.SGNodeReflection.SGInit;\r
-import org.simantics.g2d.connection.handler.ConnectionHandler;\r
-import org.simantics.g2d.diagram.DiagramHints;\r
-import org.simantics.g2d.diagram.DiagramUtils;\r
-import org.simantics.g2d.diagram.IDiagram;\r
-import org.simantics.g2d.diagram.IDiagram.CompositionListener;\r
-import org.simantics.g2d.diagram.handler.RelationshipHandler;\r
-import org.simantics.g2d.diagram.handler.RelationshipHandler.Relation;\r
-import org.simantics.g2d.diagram.handler.TransactionContext;\r
-import org.simantics.g2d.diagram.handler.TransactionContext.Transaction;\r
-import org.simantics.g2d.diagram.handler.TransactionContext.TransactionListener;\r
-import org.simantics.g2d.element.ElementClass;\r
-import org.simantics.g2d.element.ElementHints;\r
-import org.simantics.g2d.element.ElementUtils;\r
-import org.simantics.g2d.element.IElement;\r
-import org.simantics.g2d.element.SceneGraphNodeKey;\r
-import org.simantics.g2d.element.handler.BendsHandler;\r
-import org.simantics.g2d.element.handler.Children;\r
-import org.simantics.g2d.element.handler.Children.ChildEvent;\r
-import org.simantics.g2d.element.handler.Children.ChildListener;\r
-import org.simantics.g2d.element.handler.FillColor;\r
-import org.simantics.g2d.element.handler.Outline;\r
-import org.simantics.g2d.element.handler.OutlineColorSpec;\r
-import org.simantics.g2d.element.handler.Parent;\r
-import org.simantics.g2d.element.handler.SceneGraph;\r
-import org.simantics.g2d.element.handler.SelectionOutline;\r
-import org.simantics.g2d.element.handler.SelectionSpecification;\r
-import org.simantics.g2d.element.handler.StrokeSpec;\r
-import org.simantics.g2d.element.handler.TerminalTopology;\r
-import org.simantics.g2d.element.handler.Transform;\r
-import org.simantics.g2d.layers.ILayer;\r
-import org.simantics.g2d.layers.ILayersEditor;\r
-import org.simantics.g2d.layers.ILayersEditor.ILayersEditorListener;\r
-import org.simantics.g2d.participant.TransformUtil;\r
-import org.simantics.g2d.scenegraph.SceneGraphConstants;\r
-import org.simantics.g2d.utils.ElementNodeBridge;\r
-import org.simantics.g2d.utils.TopologicalSelectionExpander;\r
-import org.simantics.scenegraph.INode;\r
-import org.simantics.scenegraph.Node;\r
-import org.simantics.scenegraph.g2d.G2DParentNode;\r
-import org.simantics.scenegraph.g2d.G2DSceneGraph;\r
-import org.simantics.scenegraph.g2d.IG2DNode;\r
-import org.simantics.scenegraph.g2d.nodes.ConnectionNode;\r
-import org.simantics.scenegraph.g2d.nodes.DataNode;\r
-import org.simantics.scenegraph.g2d.nodes.LinkNode;\r
-import org.simantics.scenegraph.g2d.nodes.SelectionNode;\r
-import org.simantics.scenegraph.g2d.nodes.ShapeNode;\r
-import org.simantics.scenegraph.g2d.nodes.SingleElementNode;\r
-import org.simantics.scenegraph.g2d.nodes.UnboundedNode;\r
-import org.simantics.scenegraph.g2d.nodes.spatial.RTreeNode;\r
-import org.simantics.scenegraph.utils.ColorUtil;\r
-import org.simantics.scenegraph.utils.NodeUtil;\r
-import org.simantics.utils.datastructures.collections.CollectionUtils;\r
-import org.simantics.utils.datastructures.hints.HintListenerAdapter;\r
-import org.simantics.utils.datastructures.hints.IHintContext.Key;\r
-import org.simantics.utils.datastructures.hints.IHintContext.KeyOf;\r
-import org.simantics.utils.datastructures.hints.IHintListener;\r
-import org.simantics.utils.datastructures.hints.IHintObservable;\r
-\r
-/**\r
- * A diagram participant that keeps a diagram and its elements synchronized with\r
- * the active canvas scene graph.\r
- * \r
- * <p>\r
- * Responsibilities include:\r
- * <ul>\r
- * <li>ensure that the scene graph contains a {@link SingleElementNode} instance\r
- * for each diagram element</li>\r
- * <li>ensure that the scene graph node order matches the diagram element order</li>\r
- * <li>ensure that the scene graph contains a {@link SelectionNode} under the\r
- * element instance nodes for each selected node. TODO: maybe try getting\r
- * selection out of here into a different participant, but without cloning the\r
- * entire listening/element<->scene graph updating infrastructure.</li>\r
- * <li></li>\r
- * </ul>\r
- * \r
- * @author Tuukka Lehtonen\r
- * \r
- * @see ElementNodeBridge\r
- */\r
-public class ElementPainter extends AbstractDiagramParticipant implements CompositionListener, TransactionListener, ChildListener {\r
-\r
- public static final Key KEY_SELECTION_PROVIDER = new KeyOf(ISelectionProvider.class);\r
-\r
- public static final int SELECTION_PAINT_PRIORITY = 100;\r
-\r
- public static final Key KEY_SELECTION_FRAME_COLOR = new KeyOf(Color.class, "SELECTION_FRAME_COLOR");\r
- public static final Key KEY_SELECTION_CONTENT_COLOR = new KeyOf(Color.class, "SELECTION_CONTENT_COLOR");\r
-\r
-\r
- /**\r
- * Implement to customize the way a selection is visualized by\r
- * ElementPainter.\r
- */\r
- public static interface ISelectionProvider {\r
- public void init(final IElement e, final G2DParentNode parentNode, final String nodeId,\r
- final AffineTransform transform, final Rectangle2D bounds, final Color color);\r
- }\r
-\r
- private static final boolean DEBUG = false;\r
-\r
- public static final int ELEMENT_PAINT_PRIORITY = 10;\r
-\r
- @Reference\r
- ZOrderHandler zOrderHandler;\r
-\r
- @Dependency\r
- TransformUtil util;\r
-\r
- @Dependency\r
- Selection selection;\r
-\r
- SingleElementNode diagramParent;\r
- RTreeNode elementParent;\r
-\r
- boolean paintSelectionFrames;\r
-\r
- /**\r
- * Internally reused to avert constant reallocation.\r
- */\r
- private transient List<Relation> relations = new ArrayList<Relation>(4);\r
- /**\r
- * Internally reused to avert constant reallocation.\r
- */\r
- private transient Set<IElement> relatedElements = new HashSet<IElement>(8);\r
-\r
- public ElementPainter() {\r
- this(true);\r
- }\r
-\r
- public ElementPainter(boolean paintSelectionFrames) {\r
- this.paintSelectionFrames = paintSelectionFrames;\r
- }\r
-\r
- @Override\r
- public void addedToContext(ICanvasContext ctx) {\r
- super.addedToContext(ctx);\r
- if (zOrderHandler != null) {\r
- zOrderHandler.addOrderListener(zOrderListener);\r
- }\r
- }\r
-\r
- @Override\r
- public void removedFromContext(ICanvasContext ctx) {\r
- if (zOrderHandler != null) {\r
- zOrderHandler.removeOrderListener(zOrderListener);\r
- }\r
- selections.clear();\r
- super.removedFromContext(ctx);\r
- }\r
-\r
- @Override\r
- protected void onDiagramSet(IDiagram newValue, IDiagram oldValue) {\r
- if (oldValue == newValue)\r
- return;\r
-\r
- if (oldValue != null) {\r
- for (IElement e : oldValue.getElements()) {\r
- removeElement(e);\r
- }\r
-\r
- oldValue.removeCompositionListener(this);\r
- oldValue.removeKeyHintListener(Hints.KEY_DIRTY, diagramHintListener);\r
- oldValue.removeKeyHintListener(Hints.KEY_DISABLE_PAINTING, diagramHintListener);\r
-\r
- ILayersEditor layers = oldValue.getHint(DiagramHints.KEY_LAYERS_EDITOR);\r
- if (layers != null) {\r
- layers.removeListener(layersListener);\r
- }\r
-\r
- for (TransactionContext tc : oldValue.getDiagramClass().getItemsByClass(TransactionContext.class)) {\r
- tc.removeTransactionListener(oldValue, this);\r
- }\r
- }\r
-\r
- if (newValue != null) {\r
- for (IElement e : newValue.getElements()) {\r
- addElement(e, false);\r
- }\r
-\r
- newValue.addCompositionListener(this);\r
- newValue.addKeyHintListener(Hints.KEY_DISABLE_PAINTING, diagramHintListener);\r
- newValue.addKeyHintListener(Hints.KEY_DIRTY, diagramHintListener);\r
-\r
- ILayersEditor layers = newValue.getHint(DiagramHints.KEY_LAYERS_EDITOR);\r
- if (layers != null) {\r
- layers.addListener(layersListener);\r
- }\r
-\r
- for (TransactionContext tc : newValue.getDiagramClass().getItemsByClass(TransactionContext.class)) {\r
- tc.addTransactionListener(newValue, this);\r
- }\r
- }\r
-\r
- updateAll();\r
- }\r
-\r
- @SGInit\r
- public void initSG(G2DParentNode parent) {\r
- diagramParent = parent.addNode("elements_"+Node.IDCOUNTER, UnboundedNode.class);\r
- diagramParent.setZIndex(ELEMENT_PAINT_PRIORITY);\r
- elementParent = diagramParent.addNode("spatialRoot", RTreeNode.class);\r
- elementParent.setZIndex(0);\r
- }\r
-\r
- @SGCleanup\r
- public void cleanupSG() {\r
- diagramParent.remove();\r
- elementParent = null;\r
- diagramParent = null;\r
- }\r
-\r
- public INode getDiagramElementParentNode() {\r
- return elementParent;\r
- }\r
-\r
- // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<\r
- // Element z-order listening and update logic\r
- // ------------------------------------------------------------------------\r
-\r
- ZOrderListener zOrderListener = new ZOrderListener() {\r
- @Override\r
- public void orderChanged(IDiagram diagram) {\r
- if (diagram == ElementPainter.this.diagram) {\r
- updateZOrder(diagram, ElementHints.KEY_SG_NODE);\r
- }\r
- }\r
- };\r
-\r
- protected static void updateZOrder(IDiagram diagram, Key elementSgNodeKey) {\r
- int zIndex = 0;\r
- for (IElement e : diagram.getElements()) {\r
- Node node = e.getHint(elementSgNodeKey);\r
- if (node instanceof IG2DNode) {\r
- ((IG2DNode) node).setZIndex(++zIndex);\r
- }\r
- }\r
- }\r
-\r
- // ------------------------------------------------------------------------\r
- // Element z-order listening and update logic end\r
- // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\r
-\r
-\r
- // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<\r
- // Layer configuration change listening and reaction logic\r
- // ------------------------------------------------------------------------\r
-\r
- ILayersEditorListener layersListener = new ILayersEditorListener() {\r
- private void layersChanged() {\r
- Object task = BEGIN("EP.layersChanged");\r
- // Update visibility/focusability for each node only, do not reinitialize the graphics.\r
- updateAllVisibility();\r
- END(task);\r
- }\r
- @Override\r
- public void layerRemoved(ILayer layer) {\r
- layersChanged();\r
- }\r
- @Override\r
- public void layerDeactivated(ILayer layer) {\r
- layersChanged();\r
- }\r
- @Override\r
- public void layerAdded(ILayer layer) {\r
- layersChanged();\r
- }\r
- @Override\r
- public void layerActivated(ILayer layer) {\r
- layersChanged();\r
- }\r
- @Override\r
- public void ignoreFocusChanged(boolean value) {\r
- ICanvasContext ctx = getContext();\r
- if(ctx == null) return;\r
- G2DSceneGraph sg = ctx.getSceneGraph();\r
- if(sg == null) return;\r
- sg.setGlobalProperty(G2DSceneGraph.IGNORE_FOCUS, value);\r
- }\r
- @Override\r
- public void ignoreVisibilityChanged(boolean value) {\r
- layersChanged();\r
- }\r
- };\r
-\r
- protected void updateAllVisibility() {\r
- // TODO: optimize, no node reinitialization\r
- updateAll();\r
- }\r
-\r
- // ------------------------------------------------------------------------\r
- // Layer configuration change listening and reaction logic\r
- // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\r
-\r
-\r
- // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<\r
- // Diagram/Element hint listeners\r
- // ------------------------------------------------------------------------\r
-\r
- class DiagramHintListener extends HintListenerAdapter {\r
- @Override\r
- public void hintChanged(IHintObservable sender, Key key, Object oldValue, Object newValue) {\r
- if (key == Hints.KEY_DISABLE_PAINTING) {\r
- if (diagramParent != null) {\r
- diagramParent.setVisible(!Boolean.TRUE.equals(newValue));\r
- }\r
- } else if (key == Hints.KEY_DIRTY) {\r
- if (newValue == Hints.VALUE_Z_ORDER_CHANGED) {\r
- diagram.removeHint(Hints.KEY_DIRTY);\r
-\r
- if (DEBUG)\r
- System.out.println("Diagram z-order changed: " + diagram);\r
-\r
- updateZOrder(diagram, ElementHints.KEY_SG_NODE);\r
- }\r
- }\r
- }\r
- };\r
-\r
- private final DiagramHintListener diagramHintListener = new DiagramHintListener();\r
-\r
- /**\r
- * This element hint listener tries to ensure that diagram elements and the\r
- * normal diagram scene graph stay in sync by listening to any changes\r
- * occurring in elements, i.e. in their hints.\r
- * \r
- * It does this by listening to {@link Hints#KEY_DIRTY} hint changes.\r
- * \r
- * @author Tuukka Lehtonen\r
- */\r
- class ElementHintListener implements IHintListener {\r
- @Override\r
- public void hintChanged(IHintObservable sender, Key key, Object oldValue, Object newValue) {\r
- if (key == Hints.KEY_DIRTY) {\r
- if (newValue == Hints.VALUE_SG_DIRTY) {\r
- if (sender instanceof IElement) {\r
- assert getContext().getThreadAccess().currentThreadAccess();\r
- Object task = BEGIN("element dirty");\r
-\r
- IElement e = (IElement) sender;\r
- e.removeHint(Hints.KEY_DIRTY);\r
-\r
- if (DEBUG)\r
- System.out.println("Element is dirty: " + e);\r
-\r
- updateSelfAndNeighbors(e, COMPLETE_UPDATE);\r
- END(task);\r
- }\r
- }\r
- } else if (key == ElementHints.KEY_FOCUS_LAYERS || key == ElementHints.KEY_VISIBLE_LAYERS) {\r
- if (sender instanceof IElement) {\r
- assert getContext().getThreadAccess().currentThreadAccess();\r
- IElement e = (IElement) sender;\r
- Object task = BEGIN("layers changed: " + e);\r
- update(e);\r
- END(task);\r
- }\r
- }\r
- }\r
-\r
- @Override\r
- public void hintRemoved(IHintObservable sender, Key key, Object oldValue) {\r
- }\r
- }\r
-\r
- private final ElementHintListener elementHintListener = new ElementHintListener();\r
-\r
- private final Set<Transaction> activeTransactions = new HashSet<Transaction>();\r
-\r
- @Override\r
- public void transactionStarted(IDiagram d, Transaction t) {\r
- activeTransactions.add(t);\r
- }\r
-\r
- Consumer<IElement> COMPLETE_UPDATE = element -> {\r
- // Connections may need rerouting\r
- if (element.getElementClass().containsClass(ConnectionHandler.class))\r
- DiagramUtils.validateAndFix(diagram, Collections.singleton(element));\r
-\r
- //System.out.println("COMPLETE_UPDATE(" + element + ")");\r
- update(element);\r
- updateSelection(element);\r
- };\r
-\r
- Set<IElement> addRelatedElements(Set<IElement> elements) {\r
- RelationshipHandler rh = diagram.getDiagramClass().getAtMostOneItemOfClass(RelationshipHandler.class);\r
- if (rh != null) {\r
- relatedElements.clear();\r
- for (IElement el : elements) {\r
- relations.clear();\r
- rh.getRelations(diagram, el, relations);\r
- for (Relation r : relations) {\r
- Object obj = r.getObject();\r
- if (obj instanceof IElement) {\r
- relatedElements.add((IElement) obj);\r
- }\r
- }\r
- relations.clear();\r
- }\r
- elements.addAll(relatedElements);\r
- relatedElements.clear();\r
- }\r
- return elements;\r
- }\r
-\r
- /**\r
- * @param e\r
- * @param updateCallback\r
- */\r
- protected void updateSelfAndNeighbors(IElement e, Consumer<IElement> updateCallback) {\r
- // Slight optimization for cases that are known to be topologically\r
- // non-expandable.\r
- if (!isNotSelectionExpandable(e)) {\r
- Set<IElement> single = Collections.singleton(e);\r
-\r
- Set<IElement> expanded =\r
- // Also update all elements somehow related to e.\r
- addRelatedElements(\r
- // Get all topological neighbors and element self.\r
- CollectionUtils.join(\r
- single,\r
- TopologicalSelectionExpander.expandSelection(diagram, single)\r
- )\r
- );\r
- // Perform the updates.\r
- for (IElement el : expanded) {\r
- updateCallback.accept(el);\r
- }\r
- } else {\r
- updateCallback.accept(e);\r
- }\r
- }\r
-\r
- /**\r
- * @param e\r
- * @return\r
- */\r
- protected boolean isNotSelectionExpandable(IElement e) {\r
- ElementClass ec = e.getElementClass();\r
- return !ec.containsClass(ConnectionHandler.class)\r
- && !ec.containsClass(BendsHandler.class)\r
- && !ec.containsClass(TerminalTopology.class);\r
- }\r
-\r
- @Override\r
- public void transactionFinished(IDiagram d, Transaction t) {\r
- activeTransactions.remove(t);\r
- }\r
-\r
- boolean inDiagramTransaction() {\r
- return !activeTransactions.isEmpty();\r
- }\r
-\r
- @Override\r
- public void onElementAdded(IDiagram d, IElement e) {\r
- if (DEBUG)\r
- System.out.println("EP.onElementAdded(" + d + ", " + e + ")");\r
-\r
- if (inDiagramTransaction()) {\r
- addElement(e, false);\r
- } else {\r
- addElement(e, true);\r
- }\r
- }\r
- @Override\r
- public void onElementRemoved(IDiagram d, IElement e) {\r
- if (DEBUG)\r
- System.out.println("EP.onElementRemoved(" + d + ", " + e + ")");\r
-\r
- removeElement(e);\r
- }\r
-\r
- @Override\r
- public void elementChildrenChanged(ChildEvent event) {\r
- if (DEBUG)\r
- System.out.println("EP.elementChildrenChanged: " + event);\r
-\r
- for (IElement removed : event.removed) {\r
- removeElement(removed);\r
- }\r
- for (IElement added : event.added) {\r
- addElement(added, false);\r
- }\r
- }\r
-\r
- private final List<IElement> childrenTemp = new ArrayList<IElement>();\r
-\r
- public void addElement(IElement e, boolean synchronizeSceneGraphNow) {\r
- if (DEBUG)\r
- System.out.println("EP.addElement(now=" + synchronizeSceneGraphNow + ", " + e + ")");\r
-\r
- e.addKeyHintListener(Hints.KEY_DIRTY, elementHintListener);\r
- e.addKeyHintListener(ElementHints.KEY_VISIBLE_LAYERS, elementHintListener);\r
- e.addKeyHintListener(ElementHints.KEY_FOCUS_LAYERS, elementHintListener);\r
-\r
- ElementClass clazz = e.getElementClass();\r
- G2DParentNode parentNode = elementParent;\r
- Key sgKey = ElementHints.KEY_SG_NODE;\r
-\r
- Parent parent = clazz.getAtMostOneItemOfClass(Parent.class);\r
- if (parent != null) {\r
- IElement parentElement = parent.getParent(e);\r
- if (parentElement != null) {\r
- SingleElementNode parentHolder = parentElement.getHint(sgKey);\r
- if (parentHolder != null) {\r
- parentNode = parentHolder;\r
- }\r
- }\r
- }\r
-\r
- boolean isConnection = e.getElementClass().containsClass(ConnectionHandler.class);\r
-\r
- if(isConnection) {\r
-\r
- ConnectionNode holder = e.getHint(sgKey);\r
- if (holder == null) {\r
- holder = parentNode.addNode(ElementUtils.generateNodeId(e), ConnectionNode.class);\r
- holder.setTransferableProvider(new ElementTransferableProvider(getContext(), e));\r
- e.setHint(sgKey, holder);\r
- holder.setZIndex(parentNode.getNodeCount() + 1);\r
- }\r
-\r
- } else {\r
-\r
- SingleElementNode holder = e.getHint(sgKey);\r
- if (holder == null) {\r
- holder = parentNode.addNode(ElementUtils.generateNodeId(e), SingleElementNode.class);\r
- holder.setTransferableProvider(new ElementTransferableProvider(getContext(), e));\r
- e.setHint(sgKey, holder);\r
- holder.setZIndex(parentNode.getNodeCount() + 1);\r
- }\r
-\r
- }\r
-\r
- Children children = clazz.getAtMostOneItemOfClass(Children.class);\r
- if (children != null) {\r
- children.addChildListener(e, this);\r
-\r
- childrenTemp.clear();\r
- children.getChildren(e, childrenTemp);\r
- //System.out.println("children: " + childrenTemp);\r
- for (IElement child : childrenTemp) {\r
- addElement(child, false);\r
- }\r
- childrenTemp.clear();\r
- }\r
-\r
- if (synchronizeSceneGraphNow)\r
- updateElement(e, sgKey);\r
-\r
- //setTreeDirty();\r
- }\r
-\r
- protected void removeElement(IElement e) {\r
- if (DEBUG)\r
- System.out.println("EP.removeElement(" + e + ")");\r
-\r
- e.removeKeyHintListener(Hints.KEY_DIRTY, elementHintListener);\r
- e.removeKeyHintListener(ElementHints.KEY_VISIBLE_LAYERS, elementHintListener);\r
- e.removeKeyHintListener(ElementHints.KEY_FOCUS_LAYERS, elementHintListener);\r
-\r
- ElementClass clazz = e.getElementClass();\r
- if (clazz.containsClass(Children.class)) {\r
- Children children = clazz.getSingleItem(Children.class);\r
- children.removeChildListener(e, this);\r
- }\r
-\r
- List<SceneGraph> nodeHandlers = e.getElementClass().getItemsByClass(SceneGraph.class);\r
- for (SceneGraph n : nodeHandlers) {\r
- n.cleanup(e);\r
- }\r
-\r
- // Remove all hints related to scene graph nodes to prevent leakage of\r
- // scene graph resources.\r
- Map<SceneGraphNodeKey, Object> sgHints = e.getHintsOfClass(SceneGraphNodeKey.class);\r
- for (SceneGraphNodeKey sgKey : sgHints.keySet()) {\r
- Node n = e.removeHint(sgKey);\r
- if (n != null) {\r
- n.remove();\r
- }\r
- }\r
-\r
- //setTreeDirty();\r
- }\r
-\r
- /**\r
- * Invalidate the whole scene graph spatial structure. It will be rebuilt by\r
- * RTreeNode when needed the next time.\r
- */\r
- private void setTreeDirty() {\r
- elementParent.setDirty();\r
- }\r
-\r
- /**\r
- * Mark the specified node invalid with respect to the scene graph spatial\r
- * structure.\r
- * \r
- * @param node a scene graph node that has somehow changed\r
- */\r
- private void invalidateNode(INode node) {\r
- // TODO: optimize rtree updates instead of killing the whole tree\r
- elementParent.setDirty();\r
- }\r
-\r
- // ------------------------------------------------------------------------\r
- // Diagram/Element hint listeners\r
- // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>\r
-\r
- public void updateAll() {\r
- if (DEBUG)\r
- System.out.println("EP.updateAll()");\r
-\r
- Object task = BEGIN("EP.updateAll");\r
- paintDiagram(elementParent, diagram, null);\r
- updateSelections();\r
- setTreeDirty();\r
- END(task);\r
- }\r
-\r
- public void update(IElement element) {\r
- updateElement(element, ElementHints.KEY_SG_NODE);\r
- }\r
-\r
- /**\r
- *\r
- * @param controlGC\r
- * @param diagram\r
- * @param elementsToPaint\r
- * elements to paint or null for all elements\r
- */\r
- public void paintDiagram(G2DParentNode parent, IDiagram diagram, Collection<IElement> elementsToPaint) {\r
- Object task = BEGIN("EP.paintDiagram");\r
- paintDiagram(parent, diagram, elementsToPaint, ElementHints.KEY_SG_NODE);\r
- END(task);\r
- }\r
-\r
- /**\r
- *\r
- * @param controlGC\r
- * @param diagram\r
- * @param elementsToPaint\r
- * elements to paint or null for all elements\r
- */\r
- public void paintDiagram(G2DParentNode parent, IDiagram diagram, Collection<IElement> elementsToPaint, Key elementSgNodeKey) {\r
- if(diagram == null) return;\r
- ICanvasContext ctx = getContext();\r
- assert (ctx != null);\r
-\r
- Boolean disablePaint = diagram.getHint(Hints.KEY_DISABLE_PAINTING);\r
- if (Boolean.TRUE.equals(disablePaint)) {\r
- parent.removeNodes();\r
- return;\r
- }\r
-\r
- // Paint elementsToPaint in correct z-order from diagram.getElements()\r
- List<IElement> elements = diagram.getSnapshot();\r
-\r
- Set<SingleElementNode> tmp = new HashSet<SingleElementNode>();\r
- int zIndex = 0;\r
- for (int pass = 0; pass < 1; ++pass) {\r
- for (IElement e : elements) {\r
- if (elements != elementsToPaint && elementsToPaint != null)\r
- if (!elementsToPaint.contains(e))\r
- continue;\r
-\r
- if (DEBUG)\r
- System.out.println("EP.paintDiagram(" + zIndex + ", " + e + ")");\r
-\r
- SingleElementNode holder = updateElement(parent, e, elementSgNodeKey, false);\r
- if (holder != null) {\r
- tmp.add(holder);\r
- holder.setZIndex(++zIndex);\r
- }\r
- }\r
- }\r
-\r
- // Hide unaccessed nodes (but don't remove)\r
- for (IG2DNode node : parent.getNodes()) {\r
- if (!tmp.contains(node)) {\r
- ((SingleElementNode)node).setVisible(false);\r
- }\r
- }\r
- }\r
-\r
- public void updateElement(IElement e, Key elementSgNodeKey) {\r
- updateElement(null, e, elementSgNodeKey, true);\r
- }\r
-\r
- /**\r
- * @param parent if <code>null</code> the scene graph node structure\r
- * will not be created if it is missing\r
- * @param e\r
- * @param elementSgNodeKey\r
- * @param invalidateNode \r
- */\r
- public SingleElementNode updateElement(G2DParentNode parent, IElement e, Key elementSgNodeKey, boolean invalidateNode) {\r
- if (DEBUG)\r
- System.out.println("EP.updateElement(" + e + ", " + elementSgNodeKey + ")");\r
- Object task = BEGIN("EP.updateElement");\r
-\r
- try {\r
- SingleElementNode holder = e.getHint(elementSgNodeKey);\r
- if (holder == null && parent == null)\r
- return null;\r
-\r
- if (ElementUtils.isHidden(e))\r
- return null;\r
-\r
-// ElementClass ec = e.getElementClass();\r
-// ILayers layers = diagram.getHint(DiagramHints.KEY_LAYERS);\r
-// if (layers != null && !layers.getIgnoreVisibilitySettings()) {\r
-// ElementLayers el = ec.getAtMostOneItemOfClass(ElementLayers.class);\r
-// if (el != null && !el.isVisible(e, layers)) {\r
-// return null;\r
-// }\r
-// }\r
-\r
- // Update the node scene graph through SceneGraph handlers.\r
- List<SceneGraph> nodeHandlers = e.getElementClass().getItemsByClass(SceneGraph.class);\r
- Collection<SceneGraph> decorators = e.getHint(ElementHints.KEY_DECORATORS);\r
- if (nodeHandlers.isEmpty() && (decorators == null || decorators.isEmpty()))\r
- return null;\r
-\r
- Composite composite = e.getHint(ElementHints.KEY_COMPOSITE);\r
-\r
- if (holder == null) {\r
- holder = parent.addNode(ElementUtils.generateNodeId(e), SingleElementNode.class);\r
- e.setHint(elementSgNodeKey, holder);\r
- }\r
- holder.setComposite(composite);\r
- holder.setVisible(true);\r
-\r
- for (SceneGraph n : nodeHandlers) {\r
- n.init(e, holder);\r
- }\r
-\r
- // Process decorators\r
- if (decorators == null || decorators.isEmpty()) {\r
- holder.removeNode("decorators");\r
- } else {\r
- G2DParentNode decoratorHolder = holder.getOrCreateNode("decorators", G2DParentNode.class);\r
- decoratorHolder.removeNodes();\r
- for (SceneGraph decorator : decorators) {\r
- decorator.init(e, decoratorHolder);\r
- }\r
- }\r
-\r
- if (invalidateNode)\r
- invalidateNode(holder);\r
-\r
- return holder;\r
- } finally {\r
- END(task);\r
- }\r
- }\r
-\r
- /**\r
- * @param elementsToUpdate to explicitly specify which elements to update\r
- * the selection scene graph for, or <code>null</code> to update\r
- * everything\r
- */\r
- public void updateSelections() {\r
- Object task = BEGIN("EP.updateSelections");\r
-\r
- try {\r
- if (!paintSelectionFrames)\r
- return;\r
- if (selection == null)\r
- return;\r
-\r
- boolean selectionsChanged = false;\r
-\r
- // Update and "touch" all selections.\r
- Set<Integer> existingSelections = new HashSet<Integer>();\r
- Set<INode> selectionNodes = new HashSet<INode>();\r
- Set<INode> tmp = new HashSet<INode>();\r
- Map<INode, LinkNode> selectionLinks = new HashMap<INode, LinkNode>();\r
-\r
- for (Map.Entry<Integer, Set<IElement>> entry : selection.getSelections().entrySet()) {\r
- Integer selectionId = entry.getKey();\r
- Set<IElement> selectedElements = entry.getValue();\r
-\r
- existingSelections.add(selectionId);\r
-\r
-// System.out.println("SELECTION[" + selectionId + "]: " + selectedElements);\r
- ElementNodeBridge bridge = getOrCreateSelectionMap(selectionId);\r
- selectionNodes.clear();\r
- selectionsChanged |= paintSelection(selectedElements, selectionId, selectionNodes, bridge);\r
-\r
- // Remove selection nodes that were not referenced during the update.\r
-// System.out.println("BRIDGE: " + bridge.toString());\r
-// System.out.println("SELECTED: " + selectionNodes);\r
- tmp.clear();\r
- tmp.addAll(bridge.getRightSet());\r
- tmp.removeAll(selectionNodes);\r
-// System.out.println("REMOVED: " + tmp);\r
-// System.out.println("BRIDGE BEFORE: " + bridge);\r
- selectionsChanged |= bridge.retainAllRight(selectionNodes);\r
-// System.out.println("BRIDGE AFTER: " + bridge);\r
-\r
- G2DParentNode selectionsNode = getSelectionsNode(selectionId);\r
- selectionLinks.clear();\r
- getSelectedNodeReferences(selectionsNode, selectionLinks);\r
-\r
- for (INode node : tmp) {\r
- INode linkNode = selectionLinks.get(node.getParent());\r
- if (linkNode != null) {\r
- linkNode.remove();\r
- }\r
-// System.out.println("REMOVED SELECTION: -> " + node);\r
- node.remove();\r
- }\r
- }\r
-\r
- for (Iterator<Map.Entry<Integer, ElementNodeBridge>> iterator = selections.entrySet().iterator(); iterator.hasNext();) {\r
- Map.Entry<Integer, ElementNodeBridge> entry = iterator.next();\r
- Integer selectionId = entry.getKey();\r
- if (!existingSelections.contains(selectionId)) {\r
- // Selection no longer exists.\r
- selectionsChanged = true;\r
- for (INode node : entry.getValue().getRightSet()) {\r
-// System.out.println("REMOVED SELECTION: " + node);\r
- node.remove();\r
- }\r
- iterator.remove();\r
-\r
- G2DParentNode selectionsNode = getSelectionsNode(selectionId);\r
- selectionsNode.removeNodes();\r
- }\r
- }\r
-\r
- // Make sure the view is refreshed after selection changes.\r
- if (selectionsChanged) {\r
- setDirty();\r
- }\r
- } finally {\r
- END(task);\r
- }\r
- }\r
-\r
- private G2DParentNode getSelectionsNode() {\r
- G2DParentNode sels = NodeUtil.lookup(diagramParent, SceneGraphConstants.SELECTIONS_NODE_NAME, G2DParentNode.class);\r
- if (sels == null) {\r
- DataNode data= NodeUtil.lookup(diagramParent, SceneGraphConstants.DATA_NODE_NAME, DataNode.class);\r
- sels = data.addNode(SceneGraphConstants.SELECTIONS_NODE_NAME, G2DParentNode.class);\r
- sels.setLookupId(SceneGraphConstants.SELECTIONS_NODE_NAME);\r
- }\r
- return sels;\r
- }\r
-\r
- private G2DParentNode getSelectionsNode(int selectionId) {\r
- G2DParentNode selectionsNode = getSelectionsNode();\r
- G2DParentNode s = selectionsNode.getOrCreateNode(String.valueOf(selectionId), G2DParentNode.class);\r
- return s;\r
- }\r
-\r
- private Map<INode, LinkNode> getSelectedNodeReferences(G2DParentNode selectionsNode, Map<INode, LinkNode> result) {\r
- for (IG2DNode node : selectionsNode.getSortedNodes()) {\r
- if (node instanceof LinkNode) {\r
- INode n = ((LinkNode) node).getDelegate();\r
- if (n != null)\r
- result.put(n, (LinkNode) node);\r
- }\r
- }\r
- return result;\r
- }\r
-\r
- public void updateSelection(IElement el) {\r
- Object task = BEGIN("EP.updateSelection");\r
-\r
- try {\r
- if (!paintSelectionFrames)\r
- return;\r
-\r
- G2DParentNode elementNode = (G2DParentNode) el.getHint(ElementHints.KEY_SG_NODE);\r
- if (elementNode == null)\r
- return;\r
-\r
- boolean nodesUpdated = false;\r
-\r
- for (Map.Entry<Integer, ElementNodeBridge> entry : selections.entrySet()) {\r
- Integer selectionId = entry.getKey();\r
- ElementNodeBridge bridge = entry.getValue();\r
- Color color = getSelectionColor(selectionId);\r
-\r
- G2DParentNode selectionNode = (G2DParentNode) bridge.getRight(el);\r
- if (selectionNode == null)\r
- continue;\r
-\r
- if (NodeUtil.needSelectionPaint(elementNode))\r
- paintSelectionFrame(elementNode, selectionNode, el, color);\r
-\r
- nodesUpdated = true;\r
- }\r
-\r
- // Make sure the view is refreshed after selection changes.\r
- if (nodesUpdated)\r
- setDirty();\r
- } finally {\r
- END(task);\r
- }\r
- }\r
-\r
- /**\r
- * @param selection\r
- * @param selectionId\r
- * @param selectionNodes for collecting all the "selection" nodes created or\r
- * referenced by this method\r
- * @param bridge\r
- * @return\r
- */\r
- public boolean paintSelection(Set<IElement> selection, int selectionId, Set<INode> selectionNodes, ElementNodeBridge bridge) {\r
-\r
- boolean result = false;\r
- Color color = getSelectionColor(selectionId);\r
- G2DParentNode selectionsNode = getSelectionsNode(selectionId);\r
-\r
- for (IElement e : selection) {\r
- Node elementNode = e.getHint(ElementHints.KEY_SG_NODE);\r
-// System.out.println("selectionNode: " + elementNode + " " + e);\r
- if (elementNode instanceof G2DParentNode) {\r
- G2DParentNode en = (G2DParentNode) elementNode;\r
- G2DParentNode selectionNode = en.getOrCreateNode(NodeUtil.SELECTION_NODE_NAME, G2DParentNode.class);\r
- selectionNode.setZIndex(SELECTION_PAINT_PRIORITY);\r
- if (selectionNodes != null)\r
- selectionNodes.add(selectionNode);\r
- if (!bridge.containsLeft(e)) {\r
- //System.out.println("ADDED SELECTION: " + e + " -> " + selectionNode);\r
- bridge.map(e, selectionNode);\r
- result = true;\r
- }\r
-\r
- // Mark this node selected in the scene graph "data area"\r
- createSelectionReference(selectionsNode, elementNode);\r
-\r
- if (NodeUtil.needSelectionPaint(elementNode))\r
- paintSelectionFrame(en, selectionNode, e, color);\r
-\r
- } else {\r
- if (elementNode != null) {\r
- // Cannot paint selection for unrecognized non-parenting node\r
- System.out.println("Cannot add selection child node for non-parent element node: " + elementNode);\r
- }\r
- }\r
- }\r
-\r
-// if (selection.isEmpty()) {\r
-// Node pivotNode = (Node) parent.getNode("pivot");\r
-// if (pivotNode != null)\r
-// pivotNode.remove();\r
-// } else {\r
-// Point2D pivot = ElementUtils.getElementBoundsCenter(selection, pivotPoint);\r
-// if (pivot != null) {\r
-// //System.out.println("painting pivot: " + pivot);\r
-// SelectionPivotNode pivotNode = parent.getOrCreateNode("pivot", SelectionPivotNode.class);\r
-// pivotNode.setPivot(pivot);\r
-// } else {\r
-// parent.removeNode("pivot");\r
-// }\r
-// }\r
-\r
- return result;\r
- }\r
-\r
- public void paintSelectionFrame(G2DParentNode elementNode, G2DParentNode selectionNode, final IElement e, Color color) {\r
- // The element node already has the correct transform.\r
- AffineTransform selectionTransform = ElementUtils.getTransform(e);// no it doesnt ... new AffineTransform();\r
- Shape shape = ElementUtils.getElementShapeOrBounds(e);\r
- Rectangle2D bounds = shape.getBounds2D();\r
- //System.out.println("selection bounds: "+bounds);\r
- final double margin = 1;\r
- bounds.setFrame(bounds.getMinX() - margin, bounds.getMinY() - margin, bounds.getWidth() + 2*margin, bounds.getHeight() + 2*margin);\r
-\r
- List<SelectionSpecification> ss = e.getElementClass().getItemsByClass(SelectionSpecification.class);\r
- if (!ss.isEmpty()) {\r
- G2DParentNode shapeholder = selectionNode.getOrCreateNode(getNodeId("outlines", e), G2DParentNode.class);\r
-\r
- for (SelectionSpecification es : ss) {\r
- Outline outline = (Outline) es.getAdapter(Outline.class);\r
- if (outline == null || outline.getElementShape(e) == null)\r
- continue;\r
- ShapeNode shapenode = shapeholder.getOrCreateNode(getNodeId("outline", e, es), ShapeNode.class);\r
-// shapenode.setShape(es.getSelectionShape(e));\r
-// shapenode.setStroke(SELECTION_STROKE);\r
-// shapenode.setScaleStroke(true);\r
-// shapenode.setColor(color);\r
-// shapenode.setTransform(selectionTransform);\r
-// shapenode.setFill(false);\r
- shapenode.setShape(outline.getElementShape(e));\r
- StrokeSpec strokeSpec = (StrokeSpec) es.getAdapter(StrokeSpec.class);\r
- if (strokeSpec != null && strokeSpec.getStroke(e) != null)\r
- shapenode.setStroke(strokeSpec.getStroke(e));\r
- \r
- shapenode.setScaleStroke(false);\r
- //shapenode.setColor(color);\r
- OutlineColorSpec foregroundColor = (OutlineColorSpec) es.getAdapter(OutlineColorSpec.class);\r
- if (foregroundColor != null && foregroundColor.getColor(e) != null)\r
- shapenode.setColor(foregroundColor.getColor(e));\r
- \r
- Transform transform = (Transform) es.getAdapter(Transform.class);\r
- if (transform != null && transform.getTransform(e) != null)\r
- shapenode.setTransform(transform.getTransform(e));\r
- \r
- shapenode.setFill(false);\r
- FillColor fillColor = (FillColor) es.getAdapter(FillColor.class);\r
- if (fillColor != null && fillColor.getFillColor(e) != null)\r
- shapenode.setFill(true);\r
-// shapenode.setColor(ColorUtil.withAlpha(backgroundColor.getColor(e), 192));\r
- }\r
- return;\r
- }\r
-\r
- List<SelectionOutline> shapeHandlers = e.getElementClass().getItemsByClass(SelectionOutline.class);\r
- if (!shapeHandlers.isEmpty()) {\r
- G2DParentNode shapeholder = selectionNode.getOrCreateNode(getNodeId("outlines", e), G2DParentNode.class);\r
-\r
- for (SelectionOutline es : shapeHandlers) {\r
- ShapeNode shapenode = shapeholder.getOrCreateNode(getNodeId("outline", e, es), ShapeNode.class);\r
-// shapenode.setShape(es.getSelectionShape(e));\r
-// shapenode.setStroke(SELECTION_STROKE);\r
-// shapenode.setScaleStroke(true);\r
-// shapenode.setColor(color);\r
-// shapenode.setTransform(selectionTransform);\r
-// shapenode.setFill(false);\r
- shapenode.setShape(es.getSelectionShape(e));\r
- shapenode.setStroke(null);\r
- shapenode.setScaleStroke(false);\r
- //shapenode.setColor(color);\r
- shapenode.setColor(ColorUtil.withAlpha(color, 192));\r
- shapenode.setTransform(selectionTransform);\r
- shapenode.setFill(true);\r
- }\r
- return;\r
- }\r
-\r
- ISelectionProvider provider = this.getContext().getDefaultHintContext().getHint(KEY_SELECTION_PROVIDER);\r
- if (provider != null) {\r
- provider.init(e, selectionNode, getNodeId("shape", e), selectionTransform, bounds, color);\r
- } else {\r
- SelectionNode s = selectionNode.getOrCreateNode(getNodeId("shape", e), SelectionNode.class);\r
- s.init(selectionTransform, bounds, color);\r
- }\r
- }\r
-\r
- private void createSelectionReference(G2DParentNode selectionsNode, INode elementNode) {\r
- String id = NodeUtil.lookupId(elementNode);\r
- String uuid = null;\r
- if (id == null)\r
- id = uuid = UUID.randomUUID().toString();\r
- NodeUtil.map(elementNode, id);\r
- LinkNode link = selectionsNode.getOrCreateNode(id, LinkNode.class);\r
- link.setDelegateId(id);\r
- link.setIgnoreDelegate(true);\r
- link.setLookupIdOwner(uuid != null);\r
- }\r
-\r
- private transient CharBuffer buf = CharBuffer.allocate(32);\r
-\r
- private String getNodeId(String prefix, Object first) {\r
- return getNodeId(prefix, first, null);\r
- }\r
-\r
- private String getNodeId(String prefix, Object first, Object second) {\r
- buf.clear();\r
- if (prefix != null)\r
- buf.append(prefix);\r
- if (first != null) {\r
- buf.append('_');\r
- buf.append("" + first.hashCode());\r
- }\r
- if (second != null) {\r
- buf.append('_');\r
- buf.append("" + second.hashCode());\r
- }\r
- buf.limit(buf.position());\r
- buf.rewind();\r
- //System.out.println("node id: " + buf.toString());\r
- return buf.toString();\r
- }\r
-\r
- /**\r
- * Get selection color for a selection Id\r
- * @param selectionId selection id\r
- * @return color for the id\r
- */\r
- protected Color getSelectionColor(int selectionId) {\r
- if (selectionId == 0) {\r
- Color c = getHint(KEY_SELECTION_FRAME_COLOR);\r
- if (c != null)\r
- return c;\r
- return Color.BLACK;\r
- }\r
- Color c = selectionColor.get(selectionId);\r
- if (c == null) {\r
- Random r = new Random(selectionId);\r
- c = new Color(r.nextFloat(), r.nextFloat(), r.nextFloat());\r
- selectionColor.put(selectionId, c);\r
- }\r
- return c;\r
- }\r
-\r
- private transient ConcurrentMap<Integer, ElementNodeBridge> selections = new ConcurrentHashMap<Integer, ElementNodeBridge>();\r
-\r
- ElementNodeBridge getSelectionMap(int selectionId) {\r
- return selections.get(Integer.valueOf(selectionId));\r
- }\r
-\r
- ElementNodeBridge getOrCreateSelectionMap(int selectionId) {\r
- Integer id = Integer.valueOf(selectionId);\r
- synchronized (selections) {\r
- ElementNodeBridge map = selections.get(id);\r
- if (map != null)\r
- return map;\r
-\r
- selections.put(id, map = new ElementNodeBridge(id));\r
- return map;\r
- }\r
- }\r
-\r
- private transient Map<Integer, Color> selectionColor = new HashMap<Integer, Color>();\r
-\r
- private transient BasicStroke SELECTION_STROKE = new BasicStroke(1.0f, BasicStroke.CAP_BUTT,\r
- BasicStroke.JOIN_BEVEL, 10.0f,\r
- new float[] { 5.0f, 5.0f }, 0.0f);\r
-\r
- private transient Point2D pivotPoint = new Point2D.Double();\r
-\r
- @HintListener(Class=Selection.class, Field="SELECTION0")\r
- public void selectionChanged(IHintObservable sender, Key key, Object oldValue, Object newValue) {\r
- //System.out.println("new selection: " + newValue);\r
- updateSelections();\r
- }\r
-\r
- @HintListener(Class=Selection.class, Field="SELECTION0")\r
- public void selectionRemoved(IHintObservable sender, Key key, Object oldValue) {\r
- //System.out.println("selection removed: " + oldValue);\r
- updateSelections();\r
- }\r
-\r
- private static Object BEGIN(String name) {\r
- if (DEBUG) {\r
- //return ThreadLog.BEGIN(name);\r
- }\r
- return null;\r
- }\r
-\r
- private static void END(Object task) {\r
- if (DEBUG) {\r
- //((Task) task).end();\r
- }\r
- }\r
-\r
-}\r
+/*******************************************************************************
+ * Copyright (c) 2007, 2018 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * VTT Technical Research Centre of Finland - initial API and implementation
+ * Semantum Oy - GitLab issue #66
+ *******************************************************************************/
+package org.simantics.g2d.diagram.participant;
+
+import java.awt.BasicStroke;
+import java.awt.Color;
+import java.awt.Composite;
+import java.awt.Shape;
+import java.awt.geom.AffineTransform;
+import java.awt.geom.Point2D;
+import java.awt.geom.Rectangle2D;
+import java.nio.CharBuffer;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import java.util.Random;
+import java.util.Set;
+import java.util.UUID;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentMap;
+import java.util.function.Consumer;
+
+import org.simantics.g2d.canvas.Hints;
+import org.simantics.g2d.canvas.ICanvasContext;
+import org.simantics.g2d.canvas.impl.DependencyReflection.Dependency;
+import org.simantics.g2d.canvas.impl.DependencyReflection.Reference;
+import org.simantics.g2d.canvas.impl.HintReflection.HintListener;
+import org.simantics.g2d.canvas.impl.SGNodeReflection.SGCleanup;
+import org.simantics.g2d.canvas.impl.SGNodeReflection.SGInit;
+import org.simantics.g2d.connection.handler.ConnectionHandler;
+import org.simantics.g2d.diagram.DiagramHints;
+import org.simantics.g2d.diagram.DiagramUtils;
+import org.simantics.g2d.diagram.IDiagram;
+import org.simantics.g2d.diagram.IDiagram.CompositionListener;
+import org.simantics.g2d.diagram.handler.RelationshipHandler;
+import org.simantics.g2d.diagram.handler.RelationshipHandler.Relation;
+import org.simantics.g2d.diagram.handler.TransactionContext;
+import org.simantics.g2d.diagram.handler.TransactionContext.Transaction;
+import org.simantics.g2d.diagram.handler.TransactionContext.TransactionListener;
+import org.simantics.g2d.element.ElementClass;
+import org.simantics.g2d.element.ElementHints;
+import org.simantics.g2d.element.ElementUtils;
+import org.simantics.g2d.element.IElement;
+import org.simantics.g2d.element.SceneGraphNodeKey;
+import org.simantics.g2d.element.handler.BendsHandler;
+import org.simantics.g2d.element.handler.Children;
+import org.simantics.g2d.element.handler.Children.ChildEvent;
+import org.simantics.g2d.element.handler.Children.ChildListener;
+import org.simantics.g2d.element.handler.FillColor;
+import org.simantics.g2d.element.handler.Outline;
+import org.simantics.g2d.element.handler.OutlineColorSpec;
+import org.simantics.g2d.element.handler.Parent;
+import org.simantics.g2d.element.handler.SceneGraph;
+import org.simantics.g2d.element.handler.SelectionOutline;
+import org.simantics.g2d.element.handler.SelectionSpecification;
+import org.simantics.g2d.element.handler.StrokeSpec;
+import org.simantics.g2d.element.handler.TerminalTopology;
+import org.simantics.g2d.element.handler.Transform;
+import org.simantics.g2d.layers.ILayer;
+import org.simantics.g2d.layers.ILayersEditor;
+import org.simantics.g2d.layers.ILayersEditor.ILayersEditorListener;
+import org.simantics.g2d.participant.TransformUtil;
+import org.simantics.g2d.scenegraph.SceneGraphConstants;
+import org.simantics.g2d.utils.ElementNodeBridge;
+import org.simantics.g2d.utils.TopologicalSelectionExpander;
+import org.simantics.scenegraph.INode;
+import org.simantics.scenegraph.Node;
+import org.simantics.scenegraph.g2d.G2DParentNode;
+import org.simantics.scenegraph.g2d.G2DSceneGraph;
+import org.simantics.scenegraph.g2d.IG2DNode;
+import org.simantics.scenegraph.g2d.nodes.ConnectionNode;
+import org.simantics.scenegraph.g2d.nodes.DataNode;
+import org.simantics.scenegraph.g2d.nodes.LinkNode;
+import org.simantics.scenegraph.g2d.nodes.SelectionNode;
+import org.simantics.scenegraph.g2d.nodes.ShapeNode;
+import org.simantics.scenegraph.g2d.nodes.SingleElementNode;
+import org.simantics.scenegraph.g2d.nodes.UnboundedNode;
+import org.simantics.scenegraph.g2d.nodes.spatial.RTreeNode;
+import org.simantics.scenegraph.utils.ColorUtil;
+import org.simantics.scenegraph.utils.GeometryUtils;
+import org.simantics.scenegraph.utils.NodeUtil;
+import org.simantics.utils.datastructures.collections.CollectionUtils;
+import org.simantics.utils.datastructures.hints.HintListenerAdapter;
+import org.simantics.utils.datastructures.hints.IHintContext.Key;
+import org.simantics.utils.datastructures.hints.IHintContext.KeyOf;
+import org.simantics.utils.datastructures.hints.IHintListener;
+import org.simantics.utils.datastructures.hints.IHintObservable;
+
+/**
+ * A diagram participant that keeps a diagram and its elements synchronized with
+ * the active canvas scene graph.
+ *
+ * <p>
+ * Responsibilities include:
+ * <ul>
+ * <li>ensure that the scene graph contains a {@link SingleElementNode} instance
+ * for each diagram element</li>
+ * <li>ensure that the scene graph node order matches the diagram element order</li>
+ * <li>ensure that the scene graph contains a {@link SelectionNode} under the
+ * element instance nodes for each selected node. TODO: maybe try getting
+ * selection out of here into a different participant, but without cloning the
+ * entire listening/element<->scene graph updating infrastructure.</li>
+ * <li></li>
+ * </ul>
+ *
+ * @author Tuukka Lehtonen
+ *
+ * @see ElementNodeBridge
+ */
+public class ElementPainter extends AbstractDiagramParticipant implements CompositionListener, TransactionListener, ChildListener {
+
+ public static final Key KEY_SELECTION_PROVIDER = new KeyOf(ISelectionProvider.class);
+
+ public static final int SELECTION_PAINT_PRIORITY = 100;
+
+ public static final Key KEY_SELECTION_FRAME_COLOR = new KeyOf(Color.class, "SELECTION_FRAME_COLOR");
+ public static final Key KEY_SELECTION_CONTENT_COLOR = new KeyOf(Color.class, "SELECTION_CONTENT_COLOR");
+
+
+ /**
+ * Implement to customize the way a selection is visualized by
+ * ElementPainter.
+ */
+ public static interface ISelectionProvider {
+ public void init(int selectionId, final IElement e, final G2DParentNode parentNode, final String nodeId,
+ final AffineTransform transform, final Rectangle2D bounds, final Color color);
+ }
+
+ private static final boolean DEBUG = false;
+ private static final boolean NODE_TO_ELEMENT_MAPPING = true;
+
+ public static final int ELEMENT_PAINT_PRIORITY = 10;
+
+ @Reference
+ ZOrderHandler zOrderHandler;
+
+ @Dependency
+ TransformUtil util;
+
+ @Dependency
+ Selection selection;
+
+ SingleElementNode diagramParent;
+ RTreeNode elementParent;
+
+ ElementPainterConfiguration cfg;
+
+ /**
+ * Internally reused to avert constant reallocation.
+ */
+ private transient List<Relation> relations = new ArrayList<Relation>(4);
+ /**
+ * Internally reused to avert constant reallocation.
+ */
+ private transient Set<IElement> relatedElements = new HashSet<IElement>(8);
+
+ public ElementPainter() {
+ this(true);
+ }
+
+ public ElementPainter(boolean paintSelectionFrames) {
+ this(new ElementPainterConfiguration().paintSelectionFrames(paintSelectionFrames));
+ }
+
+ public ElementPainter(ElementPainterConfiguration cfg) {
+ this.cfg = cfg;
+ }
+
+ @Override
+ public void addedToContext(ICanvasContext ctx) {
+ super.addedToContext(ctx);
+ if (zOrderHandler != null) {
+ zOrderHandler.addOrderListener(zOrderListener);
+ }
+ }
+
+ @Override
+ public void removedFromContext(ICanvasContext ctx) {
+ if (zOrderHandler != null) {
+ zOrderHandler.removeOrderListener(zOrderListener);
+ }
+ selections.clear();
+ super.removedFromContext(ctx);
+ }
+
+ @Override
+ protected void onDiagramSet(IDiagram newValue, IDiagram oldValue) {
+ if (oldValue == newValue)
+ return;
+
+ if (oldValue != null) {
+ Map<INode, IElement> nodeToElementMap = oldValue.removeHint(DiagramHints.NODE_TO_ELEMENT_MAP);
+ for (IElement e : oldValue.getElements()) {
+ removeElement(oldValue, e, nodeToElementMap);
+ }
+
+ oldValue.removeCompositionListener(this);
+ oldValue.removeKeyHintListener(Hints.KEY_DIRTY, diagramHintListener);
+ oldValue.removeKeyHintListener(Hints.KEY_DISABLE_PAINTING, diagramHintListener);
+
+ ILayersEditor layers = oldValue.getHint(DiagramHints.KEY_LAYERS_EDITOR);
+ if (layers != null) {
+ layers.removeListener(layersListener);
+ }
+
+ for (TransactionContext tc : oldValue.getDiagramClass().getItemsByClass(TransactionContext.class)) {
+ tc.removeTransactionListener(oldValue, this);
+ }
+ }
+
+ if (newValue != null) {
+ diagram.removeHint(DiagramHints.NODE_TO_ELEMENT_MAP);
+ Map<INode, IElement> nodeElementMap = NODE_TO_ELEMENT_MAPPING ? new HashMap<>() : null;
+ if (nodeElementMap != null)
+ diagram.setHint(DiagramHints.NODE_TO_ELEMENT_MAP, nodeElementMap);
+
+ for (IElement e : newValue.getElements()) {
+ addElement(newValue, e, false, nodeElementMap);
+ }
+
+ newValue.addCompositionListener(this);
+ newValue.addKeyHintListener(Hints.KEY_DISABLE_PAINTING, diagramHintListener);
+ newValue.addKeyHintListener(Hints.KEY_DIRTY, diagramHintListener);
+
+ ILayersEditor layers = newValue.getHint(DiagramHints.KEY_LAYERS_EDITOR);
+ if (layers != null) {
+ layers.addListener(layersListener);
+ }
+
+ for (TransactionContext tc : newValue.getDiagramClass().getItemsByClass(TransactionContext.class)) {
+ tc.addTransactionListener(newValue, this);
+ }
+ }
+
+ updateAll();
+ }
+
+ @SGInit
+ public void initSG(G2DParentNode parent) {
+ diagramParent = parent.addNode("elements_"+Node.IDCOUNTER, UnboundedNode.class);
+ diagramParent.setZIndex(ELEMENT_PAINT_PRIORITY);
+ elementParent = diagramParent.addNode(SceneGraphConstants.SPATIAL_ROOT_NODE_NAME, RTreeNode.class);
+ elementParent.setLookupId(SceneGraphConstants.SPATIAL_ROOT_NODE_ID);
+ elementParent.setZIndex(0);
+ }
+
+ @SGCleanup
+ public void cleanupSG() {
+ diagramParent.remove();
+ elementParent = null;
+ diagramParent = null;
+ }
+
+ public INode getDiagramElementParentNode() {
+ return elementParent;
+ }
+
+ // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
+ // Element z-order listening and update logic
+ // ------------------------------------------------------------------------
+
+ ZOrderListener zOrderListener = new ZOrderListener() {
+ @Override
+ public void orderChanged(IDiagram diagram) {
+ if (diagram == ElementPainter.this.diagram) {
+ updateZOrder(diagram, ElementHints.KEY_SG_NODE);
+ }
+ }
+ };
+
+ protected static void updateZOrder(IDiagram diagram, Key elementSgNodeKey) {
+ int zIndex = 0;
+ for (IElement e : diagram.getElements()) {
+ Node node = e.getHint(elementSgNodeKey);
+ if (node instanceof IG2DNode) {
+ ((IG2DNode) node).setZIndex(++zIndex);
+ }
+ }
+ }
+
+ // ------------------------------------------------------------------------
+ // Element z-order listening and update logic end
+ // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
+
+
+ // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
+ // Layer configuration change listening and reaction logic
+ // ------------------------------------------------------------------------
+
+ ILayersEditorListener layersListener = new ILayersEditorListener() {
+ private void layersChanged() {
+ Object task = BEGIN("EP.layersChanged");
+ // Update visibility/focusability for each node only, do not reinitialize the graphics.
+ updateAllVisibility();
+ END(task);
+ }
+ @Override
+ public void layerRemoved(ILayer layer) {
+ layersChanged();
+ }
+ @Override
+ public void layerDeactivated(ILayer layer) {
+ layersChanged();
+ }
+ @Override
+ public void layerAdded(ILayer layer) {
+ layersChanged();
+ }
+ @Override
+ public void layerActivated(ILayer layer) {
+ layersChanged();
+ }
+ @Override
+ public void ignoreFocusChanged(boolean value) {
+ ICanvasContext ctx = getContext();
+ if(ctx == null) return;
+ G2DSceneGraph sg = ctx.getSceneGraph();
+ if(sg == null) return;
+ sg.setGlobalProperty(G2DSceneGraph.IGNORE_FOCUS, value);
+ }
+ @Override
+ public void ignoreVisibilityChanged(boolean value) {
+ layersChanged();
+ }
+ };
+
+ protected void updateAllVisibility() {
+ // TODO: optimize, no node reinitialization
+ updateAll();
+ }
+
+ // ------------------------------------------------------------------------
+ // Layer configuration change listening and reaction logic
+ // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
+
+
+ // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
+ // Diagram/Element hint listeners
+ // ------------------------------------------------------------------------
+
+ class DiagramHintListener extends HintListenerAdapter {
+ @Override
+ public void hintChanged(IHintObservable sender, Key key, Object oldValue, Object newValue) {
+ if (key == Hints.KEY_DISABLE_PAINTING) {
+ if (diagramParent != null) {
+ diagramParent.setVisible(!Boolean.TRUE.equals(newValue));
+ }
+ } else if (key == Hints.KEY_DIRTY) {
+ if (newValue == Hints.VALUE_Z_ORDER_CHANGED) {
+ diagram.removeHint(Hints.KEY_DIRTY);
+
+ if (DEBUG)
+ System.out.println("Diagram z-order changed: " + diagram);
+
+ updateZOrder(diagram, ElementHints.KEY_SG_NODE);
+ }
+ }
+ }
+ };
+
+ private final DiagramHintListener diagramHintListener = new DiagramHintListener();
+
+ /**
+ * This element hint listener tries to ensure that diagram elements and the
+ * normal diagram scene graph stay in sync by listening to any changes
+ * occurring in elements, i.e. in their hints.
+ *
+ * It does this by listening to {@link Hints#KEY_DIRTY} hint changes.
+ *
+ * @author Tuukka Lehtonen
+ */
+ class ElementHintListener implements IHintListener {
+ @Override
+ public void hintChanged(IHintObservable sender, Key key, Object oldValue, Object newValue) {
+ if (key == Hints.KEY_DIRTY) {
+ if (newValue == Hints.VALUE_SG_DIRTY) {
+ if (sender instanceof IElement) {
+ assert getContext().getThreadAccess().currentThreadAccess();
+ Object task = BEGIN("element dirty");
+
+ IElement e = (IElement) sender;
+ e.removeHint(Hints.KEY_DIRTY);
+
+ if (DEBUG)
+ System.out.println("Element is dirty: " + e);
+
+ updateSelfAndNeighbors(e, COMPLETE_UPDATE);
+ END(task);
+ }
+ }
+ } else if (key == ElementHints.KEY_FOCUS_LAYERS || key == ElementHints.KEY_VISIBLE_LAYERS) {
+ if (sender instanceof IElement) {
+ assert getContext().getThreadAccess().currentThreadAccess();
+ IElement e = (IElement) sender;
+ Object task = BEGIN("layers changed: " + e);
+ update(e);
+ END(task);
+ }
+ }
+ }
+
+ @Override
+ public void hintRemoved(IHintObservable sender, Key key, Object oldValue) {
+ }
+ }
+
+ private final ElementHintListener elementHintListener = new ElementHintListener();
+
+ private final Set<Transaction> activeTransactions = new HashSet<Transaction>();
+
+ @Override
+ public void transactionStarted(IDiagram d, Transaction t) {
+ activeTransactions.add(t);
+ }
+
+ Consumer<IElement> COMPLETE_UPDATE = element -> {
+ // Connections may need rerouting
+ if (element.getElementClass().containsClass(ConnectionHandler.class))
+ DiagramUtils.validateAndFix(diagram, Collections.singleton(element));
+
+ //System.out.println("COMPLETE_UPDATE(" + element + ")");
+ update(element);
+ updateSelection(element);
+ };
+
+ Set<IElement> addRelatedElements(Set<IElement> elements) {
+ RelationshipHandler rh = diagram.getDiagramClass().getAtMostOneItemOfClass(RelationshipHandler.class);
+ if (rh != null) {
+ relatedElements.clear();
+ for (IElement el : elements) {
+ relations.clear();
+ rh.getRelations(diagram, el, relations);
+ for (Relation r : relations) {
+ Object obj = r.getObject();
+ if (obj instanceof IElement) {
+ relatedElements.add((IElement) obj);
+ }
+ }
+ relations.clear();
+ }
+ elements.addAll(relatedElements);
+ relatedElements.clear();
+ }
+ return elements;
+ }
+
+ /**
+ * @param e
+ * @param updateCallback
+ */
+ protected void updateSelfAndNeighbors(IElement e, Consumer<IElement> updateCallback) {
+ // Slight optimization for cases that are known to be topologically
+ // non-expandable.
+ if (!isNotSelectionExpandable(e)) {
+ Set<IElement> single = Collections.singleton(e);
+
+ Set<IElement> expanded =
+ // Also update all elements somehow related to e.
+ addRelatedElements(
+ // Get all topological neighbors and element self.
+ CollectionUtils.join(
+ single,
+ TopologicalSelectionExpander.expandSelection(diagram, single)
+ )
+ );
+ // Perform the updates.
+ for (IElement el : expanded) {
+ updateCallback.accept(el);
+ }
+ } else {
+ updateCallback.accept(e);
+ }
+ }
+
+ /**
+ * @param e
+ * @return
+ */
+ protected boolean isNotSelectionExpandable(IElement e) {
+ ElementClass ec = e.getElementClass();
+ return !ec.containsClass(ConnectionHandler.class)
+ && !ec.containsClass(BendsHandler.class)
+ && !ec.containsClass(TerminalTopology.class);
+ }
+
+ @Override
+ public void transactionFinished(IDiagram d, Transaction t) {
+ activeTransactions.remove(t);
+ }
+
+ boolean inDiagramTransaction() {
+ return !activeTransactions.isEmpty();
+ }
+
+ @Override
+ public void onElementAdded(IDiagram d, IElement e) {
+ if (DEBUG)
+ System.out.println("EP.onElementAdded(" + d + ", " + e + ")");
+
+ Map<INode, IElement> nodeElementMap = diagram.getHint(DiagramHints.NODE_TO_ELEMENT_MAP);
+ if (inDiagramTransaction()) {
+ addElement(d, e, false, nodeElementMap);
+ } else {
+ addElement(d, e, true, nodeElementMap);
+ }
+ }
+ @Override
+ public void onElementRemoved(IDiagram d, IElement e) {
+ if (DEBUG)
+ System.out.println("EP.onElementRemoved(" + d + ", " + e + ")");
+
+ removeElement(d, e, diagram.getHint(DiagramHints.NODE_TO_ELEMENT_MAP));
+ }
+
+ @Override
+ public void elementChildrenChanged(ChildEvent event) {
+ if (DEBUG)
+ System.out.println("EP.elementChildrenChanged: " + event);
+
+ Map<INode, IElement> nodeElementMap = diagram.getHint(DiagramHints.NODE_TO_ELEMENT_MAP);
+
+ for (IElement removed : event.removed) {
+ removeElement(diagram, removed, nodeElementMap);
+ }
+ for (IElement added : event.added) {
+ addElement(diagram, added, false, nodeElementMap);
+ }
+ }
+
+ private final List<IElement> childrenTemp = new ArrayList<IElement>();
+
+ public void addElement(IDiagram d, IElement e, boolean synchronizeSceneGraphNow, Map<INode, IElement> nodeElementMap) {
+ if (DEBUG)
+ System.out.println("EP.addElement(now=" + synchronizeSceneGraphNow + ", " + e + ")");
+
+ e.addKeyHintListener(Hints.KEY_DIRTY, elementHintListener);
+ e.addKeyHintListener(ElementHints.KEY_VISIBLE_LAYERS, elementHintListener);
+ e.addKeyHintListener(ElementHints.KEY_FOCUS_LAYERS, elementHintListener);
+
+ ElementClass clazz = e.getElementClass();
+ G2DParentNode parentNode = elementParent;
+ Key sgKey = ElementHints.KEY_SG_NODE;
+
+ Parent parent = clazz.getAtMostOneItemOfClass(Parent.class);
+ if (parent != null) {
+ IElement parentElement = parent.getParent(e);
+ if (parentElement != null) {
+ SingleElementNode parentHolder = parentElement.getHint(sgKey);
+ if (parentHolder != null) {
+ parentNode = parentHolder;
+ }
+ }
+ }
+
+ boolean isConnection = e.getElementClass().containsClass(ConnectionHandler.class);
+
+ if(isConnection) {
+
+ ConnectionNode holder = e.getHint(sgKey);
+ if (holder == null) {
+ holder = parentNode.addNode(ElementUtils.generateNodeId(e), ConnectionNode.class);
+ holder.setKey(e.getHint(ElementHints.KEY_OBJECT));
+ holder.setTypeClass(e.getHint(ElementHints.KEY_TYPE_CLASS));
+ holder.setTransferableProvider(new ElementTransferableProvider(getContext(), e));
+ e.setHint(sgKey, holder);
+ holder.setZIndex(parentNode.getNodeCount() + 1);
+ if (nodeElementMap != null)
+ nodeElementMap.put(holder, e);
+ }
+
+ } else {
+
+ SingleElementNode holder = e.getHint(sgKey);
+ if (holder == null) {
+ holder = parentNode.addNode(ElementUtils.generateNodeId(e), SingleElementNode.class);
+ holder.setKey(e.getHint(ElementHints.KEY_OBJECT));
+ holder.setTypeClass(e.getHint(ElementHints.KEY_TYPE_CLASS));
+ holder.setTransferableProvider(new ElementTransferableProvider(getContext(), e));
+ e.setHint(sgKey, holder);
+ holder.setZIndex(parentNode.getNodeCount() + 1);
+ if (nodeElementMap != null)
+ nodeElementMap.put(holder, e);
+ }
+
+ }
+
+ Children children = clazz.getAtMostOneItemOfClass(Children.class);
+ if (children != null) {
+ children.addChildListener(e, this);
+
+ childrenTemp.clear();
+ children.getChildren(e, childrenTemp);
+ //System.out.println("children: " + childrenTemp);
+ for (IElement child : childrenTemp) {
+ addElement(d, child, false, nodeElementMap);
+ }
+ childrenTemp.clear();
+ }
+
+ if (synchronizeSceneGraphNow)
+ updateElement(e, sgKey);
+
+ //setTreeDirty();
+ }
+
+ protected void removeElement(IDiagram d, IElement e, Map<INode, IElement> nodeElementMap) {
+ if (DEBUG)
+ System.out.println("EP.removeElement(" + e + ")");
+
+ e.removeKeyHintListener(Hints.KEY_DIRTY, elementHintListener);
+ e.removeKeyHintListener(ElementHints.KEY_VISIBLE_LAYERS, elementHintListener);
+ e.removeKeyHintListener(ElementHints.KEY_FOCUS_LAYERS, elementHintListener);
+
+ ElementClass clazz = e.getElementClass();
+ if (clazz.containsClass(Children.class)) {
+ Children children = clazz.getSingleItem(Children.class);
+ children.removeChildListener(e, this);
+ }
+
+ List<SceneGraph> nodeHandlers = e.getElementClass().getItemsByClass(SceneGraph.class);
+ for (SceneGraph n : nodeHandlers) {
+ n.cleanup(e);
+ }
+
+ // Remove all hints related to scene graph nodes to prevent leakage of
+ // scene graph resources.
+ Map<SceneGraphNodeKey, Object> sgHints = e.getHintsOfClass(SceneGraphNodeKey.class);
+ for (SceneGraphNodeKey sgKey : sgHints.keySet()) {
+ Node n = e.removeHint(sgKey);
+ if (n != null) {
+ n.remove();
+ if (nodeElementMap != null)
+ nodeElementMap.remove(n);
+ }
+ }
+
+ //setTreeDirty();
+ }
+
+ /**
+ * Invalidate the whole scene graph spatial structure. It will be rebuilt by
+ * RTreeNode when needed the next time.
+ */
+ private void setTreeDirty() {
+ elementParent.setDirty();
+ }
+
+ /**
+ * Mark the specified node invalid with respect to the scene graph spatial
+ * structure.
+ *
+ * @param node a scene graph node that has somehow changed
+ */
+ private void invalidateNode(INode node) {
+ // TODO: optimize rtree updates instead of killing the whole tree
+ elementParent.setDirty();
+ }
+
+ // ------------------------------------------------------------------------
+ // Diagram/Element hint listeners
+ // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
+
+ public void updateAll() {
+ if (DEBUG)
+ System.out.println("EP.updateAll()");
+
+ Object task = BEGIN("EP.updateAll");
+ paintDiagram(elementParent, diagram, null);
+ updateSelections();
+ setTreeDirty();
+ END(task);
+ }
+
+ public void update(IElement element) {
+ updateElement(element, ElementHints.KEY_SG_NODE);
+ }
+
+ /**
+ *
+ * @param controlGC
+ * @param diagram
+ * @param elementsToPaint
+ * elements to paint or null for all elements
+ */
+ public void paintDiagram(G2DParentNode parent, IDiagram diagram, Collection<IElement> elementsToPaint) {
+ Object task = BEGIN("EP.paintDiagram");
+ paintDiagram(parent, diagram, elementsToPaint, ElementHints.KEY_SG_NODE);
+ END(task);
+ }
+
+ /**
+ *
+ * @param controlGC
+ * @param diagram
+ * @param elementsToPaint
+ * elements to paint or null for all elements
+ */
+ public void paintDiagram(G2DParentNode parent, IDiagram diagram, Collection<IElement> elementsToPaint, Key elementSgNodeKey) {
+ if(diagram == null) return;
+ ICanvasContext ctx = getContext();
+ assert (ctx != null);
+
+ Boolean disablePaint = diagram.getHint(Hints.KEY_DISABLE_PAINTING);
+ if (Boolean.TRUE.equals(disablePaint)) {
+ parent.removeNodes();
+ return;
+ }
+
+ // Paint elementsToPaint in correct z-order from diagram.getElements()
+ List<IElement> elements = diagram.getSnapshot();
+
+ Set<SingleElementNode> tmp = new HashSet<SingleElementNode>();
+ int zIndex = 0;
+ for (int pass = 0; pass < 1; ++pass) {
+ for (IElement e : elements) {
+ if (elements != elementsToPaint && elementsToPaint != null)
+ if (!elementsToPaint.contains(e))
+ continue;
+
+ if (DEBUG)
+ System.out.println("EP.paintDiagram(" + zIndex + ", " + e + ")");
+
+ SingleElementNode holder = updateElement(parent, e, elementSgNodeKey, false);
+ if (holder != null) {
+ tmp.add(holder);
+ holder.setZIndex(++zIndex);
+ }
+ }
+ }
+
+ // Hide unaccessed nodes (but don't remove)
+ for (IG2DNode node : parent.getNodes()) {
+ if (!tmp.contains(node)) {
+ ((SingleElementNode)node).setVisible(false);
+ }
+ }
+ }
+
+ public void updateElement(IElement e, Key elementSgNodeKey) {
+ updateElement(null, e, elementSgNodeKey, true);
+ }
+
+ /**
+ * @param parent if <code>null</code> the scene graph node structure
+ * will not be created if it is missing
+ * @param e
+ * @param elementSgNodeKey
+ * @param invalidateNode
+ */
+ public SingleElementNode updateElement(G2DParentNode parent, IElement e, Key elementSgNodeKey, boolean invalidateNode) {
+ if (DEBUG)
+ System.out.println("EP.updateElement(" + e + ", " + elementSgNodeKey + ")");
+ Object task = BEGIN("EP.updateElement");
+
+ try {
+ SingleElementNode holder = e.getHint(elementSgNodeKey);
+ if (holder == null && parent == null)
+ return null;
+
+ if (ElementUtils.isHidden(e))
+ return null;
+
+// ElementClass ec = e.getElementClass();
+// ILayers layers = diagram.getHint(DiagramHints.KEY_LAYERS);
+// if (layers != null && !layers.getIgnoreVisibilitySettings()) {
+// ElementLayers el = ec.getAtMostOneItemOfClass(ElementLayers.class);
+// if (el != null && !el.isVisible(e, layers)) {
+// return null;
+// }
+// }
+
+ // Update the node scene graph through SceneGraph handlers.
+ List<SceneGraph> nodeHandlers = e.getElementClass().getItemsByClass(SceneGraph.class);
+ Collection<SceneGraph> decorators = e.getHint(ElementHints.KEY_DECORATORS);
+ if (nodeHandlers.isEmpty() && (decorators == null || decorators.isEmpty()))
+ return null;
+
+ Composite composite = e.getHint(ElementHints.KEY_COMPOSITE);
+
+ if (holder == null) {
+ holder = parent.addNode(ElementUtils.generateNodeId(e), SingleElementNode.class);
+ e.setHint(elementSgNodeKey, holder);
+ }
+ holder.setComposite(composite);
+ holder.setVisible(true);
+
+ for (SceneGraph n : nodeHandlers) {
+ n.init(e, holder);
+ }
+
+ // Process decorators
+ if (decorators == null || decorators.isEmpty()) {
+ holder.removeNode("decorators");
+ } else {
+ G2DParentNode decoratorHolder = holder.getOrCreateNode("decorators", G2DParentNode.class);
+ decoratorHolder.removeNodes();
+ for (SceneGraph decorator : decorators) {
+ decorator.init(e, decoratorHolder);
+ }
+ }
+
+ if (invalidateNode)
+ invalidateNode(holder);
+
+ return holder;
+ } finally {
+ END(task);
+ }
+ }
+
+ /**
+ * @param elementsToUpdate to explicitly specify which elements to update
+ * the selection scene graph for, or <code>null</code> to update
+ * everything
+ */
+ public void updateSelections() {
+ Object task = BEGIN("EP.updateSelections");
+
+ try {
+ if (!cfg.paintSelectionFrames)
+ return;
+ if (selection == null)
+ return;
+
+ boolean selectionsChanged = false;
+
+ // Update and "touch" all selections.
+ Set<Integer> existingSelections = new HashSet<Integer>();
+ Set<INode> selectionNodes = new HashSet<INode>();
+ Set<INode> tmp = new HashSet<INode>();
+ Map<INode, LinkNode> selectionLinks = new HashMap<INode, LinkNode>();
+
+ for (Map.Entry<Integer, Set<IElement>> entry : selection.getSelections().entrySet()) {
+ Integer selectionId = entry.getKey();
+ Set<IElement> selectedElements = entry.getValue();
+
+ existingSelections.add(selectionId);
+
+// System.out.println("SELECTION[" + selectionId + "]: " + selectedElements);
+ ElementNodeBridge bridge = getOrCreateSelectionMap(selectionId);
+ selectionNodes.clear();
+ selectionsChanged |= paintSelection(selectedElements, selectionId, selectionNodes, bridge);
+
+ // Remove selection nodes that were not referenced during the update.
+// System.out.println("BRIDGE: " + bridge.toString());
+// System.out.println("SELECTED: " + selectionNodes);
+ tmp.clear();
+ tmp.addAll(bridge.getRightSet());
+ tmp.removeAll(selectionNodes);
+// System.out.println("REMOVED: " + tmp);
+// System.out.println("BRIDGE BEFORE: " + bridge);
+ selectionsChanged |= bridge.retainAllRight(selectionNodes);
+// System.out.println("BRIDGE AFTER: " + bridge);
+
+ G2DParentNode selectionsNode = getSelectionsNode(selectionId);
+ selectionLinks.clear();
+ getSelectedNodeReferences(selectionsNode, selectionLinks);
+
+ for (INode node : tmp) {
+ INode linkNode = selectionLinks.get(node.getParent());
+ if (linkNode != null) {
+ linkNode.remove();
+ }
+// System.out.println("REMOVED SELECTION: -> " + node);
+ node.remove();
+ }
+ }
+
+ for (Iterator<Map.Entry<Integer, ElementNodeBridge>> iterator = selections.entrySet().iterator(); iterator.hasNext();) {
+ Map.Entry<Integer, ElementNodeBridge> entry = iterator.next();
+ Integer selectionId = entry.getKey();
+ if (!existingSelections.contains(selectionId)) {
+ // Selection no longer exists.
+ selectionsChanged = true;
+ for (INode node : entry.getValue().getRightSet()) {
+// System.out.println("REMOVED SELECTION: " + node);
+ node.remove();
+ }
+ iterator.remove();
+
+ G2DParentNode selectionsNode = getSelectionsNode(selectionId);
+ selectionsNode.removeNodes();
+ }
+ }
+
+ // Make sure the view is refreshed after selection changes.
+ if (selectionsChanged) {
+ setDirty();
+ }
+ } finally {
+ END(task);
+ }
+ }
+
+ private G2DParentNode getSelectionsNode() {
+ G2DParentNode sels = NodeUtil.lookup(diagramParent, SceneGraphConstants.SELECTIONS_NODE_NAME, G2DParentNode.class);
+ if (sels == null) {
+ DataNode data= NodeUtil.lookup(diagramParent, SceneGraphConstants.DATA_NODE_NAME, DataNode.class);
+ sels = data.addNode(SceneGraphConstants.SELECTIONS_NODE_NAME, G2DParentNode.class);
+ sels.setLookupId(SceneGraphConstants.SELECTIONS_NODE_NAME);
+ }
+ return sels;
+ }
+
+ private G2DParentNode getSelectionsNode(int selectionId) {
+ G2DParentNode selectionsNode = getSelectionsNode();
+ G2DParentNode s = selectionsNode.getOrCreateNode(String.valueOf(selectionId), G2DParentNode.class);
+ return s;
+ }
+
+ private Map<INode, LinkNode> getSelectedNodeReferences(G2DParentNode selectionsNode, Map<INode, LinkNode> result) {
+ for (IG2DNode node : selectionsNode.getSortedNodes()) {
+ if (node instanceof LinkNode) {
+ INode n = ((LinkNode) node).getDelegate();
+ if (n != null)
+ result.put(n, (LinkNode) node);
+ }
+ }
+ return result;
+ }
+
+ public void updateSelection(IElement el) {
+ Object task = BEGIN("EP.updateSelection");
+
+ try {
+ if (!cfg.paintSelectionFrames)
+ return;
+
+ G2DParentNode elementNode = (G2DParentNode) el.getHint(ElementHints.KEY_SG_NODE);
+ if (elementNode == null)
+ return;
+
+ boolean nodesUpdated = false;
+
+ for (Map.Entry<Integer, ElementNodeBridge> entry : selections.entrySet()) {
+ Integer selectionId = entry.getKey();
+ ElementNodeBridge bridge = entry.getValue();
+ Color color = getSelectionColor(selectionId);
+
+ G2DParentNode selectionNode = (G2DParentNode) bridge.getRight(el);
+ if (selectionNode == null)
+ continue;
+
+ if (NodeUtil.needSelectionPaint(elementNode))
+ paintSelectionFrame(selectionId, elementNode, selectionNode, el, color);
+
+ nodesUpdated = true;
+ }
+
+ // Make sure the view is refreshed after selection changes.
+ if (nodesUpdated)
+ setDirty();
+ } finally {
+ END(task);
+ }
+ }
+
+ /**
+ * @param selection
+ * @param selectionId
+ * @param selectionNodes for collecting all the "selection" nodes created or
+ * referenced by this method
+ * @param bridge
+ * @return
+ */
+ public boolean paintSelection(Set<IElement> selection, int selectionId, Set<INode> selectionNodes, ElementNodeBridge bridge) {
+
+ boolean result = false;
+ Color color = getSelectionColor(selectionId);
+ G2DParentNode selectionsNode = getSelectionsNode(selectionId);
+
+ Class<? extends G2DParentNode> selectionNodeClass = cfg.selectionNodeClass != null ? cfg.selectionNodeClass : G2DParentNode.class;
+
+ for (IElement e : selection) {
+ Node elementNode = e.getHint(ElementHints.KEY_SG_NODE);
+// System.out.println("selectionNode: " + elementNode + " " + e);
+ if (elementNode instanceof G2DParentNode) {
+ G2DParentNode en = (G2DParentNode) elementNode;
+ G2DParentNode selectionNode = en.getOrCreateNode(NodeUtil.SELECTION_NODE_NAME, selectionNodeClass);
+ selectionNode.setZIndex(SELECTION_PAINT_PRIORITY);
+ if (selectionNodes != null)
+ selectionNodes.add(selectionNode);
+ if (!bridge.containsLeft(e)) {
+ //System.out.println("ADDED SELECTION: " + e + " -> " + selectionNode);
+ bridge.map(e, selectionNode);
+ result = true;
+ }
+
+ // Mark this node selected in the scene graph "data area"
+ createSelectionReference(selectionsNode, elementNode);
+
+ if (NodeUtil.needSelectionPaint(elementNode))
+ paintSelectionFrame(selectionId, en, selectionNode, e, color);
+
+ } else {
+ if (elementNode != null) {
+ // Cannot paint selection for unrecognized non-parenting node
+ System.out.println("Cannot add selection child node for non-parent element node: " + elementNode);
+ }
+ }
+ }
+
+// if (selection.isEmpty()) {
+// Node pivotNode = (Node) parent.getNode("pivot");
+// if (pivotNode != null)
+// pivotNode.remove();
+// } else {
+// Point2D pivot = ElementUtils.getElementBoundsCenter(selection, pivotPoint);
+// if (pivot != null) {
+// //System.out.println("painting pivot: " + pivot);
+// SelectionPivotNode pivotNode = parent.getOrCreateNode("pivot", SelectionPivotNode.class);
+// pivotNode.setPivot(pivot);
+// } else {
+// parent.removeNode("pivot");
+// }
+// }
+
+ return result;
+ }
+
+
+ /**
+ * We need to have separate class for SelectionNode, so that SCLSceneGraph can handle this properly.
+ *
+ */
+ public static class SelectionShapeNode extends ShapeNode {
+
+ private static final long serialVersionUID = -5393630944240940166L;
+
+ }
+
+ public void paintSelectionFrame(int selectionId, G2DParentNode elementNode, G2DParentNode selectionNode, final IElement e, Color color) {
+ // The element node already has the correct transform.
+ AffineTransform selectionTransform = ElementUtils.getTransform(e);// no it doesnt ... new AffineTransform();
+ Shape shape = ElementUtils.getElementShapeOrBounds(e);
+ Rectangle2D bounds = shape.getBounds2D();
+ //System.out.println("selection bounds: "+bounds);
+
+ Point2D scale = GeometryUtils.getScale2D(selectionTransform);
+ final double marginX = Math.abs(scale.getX()) > 1e-10 ? 1 / scale.getX() : 1;
+ final double marginY = Math.abs(scale.getY()) > 1e-10 ? 1 / scale.getY() : 1;
+
+ bounds.setFrame(bounds.getMinX() - marginX, bounds.getMinY() - marginY, bounds.getWidth() + 2*marginX, bounds.getHeight() + 2*marginY);
+
+ List<SelectionSpecification> ss = e.getElementClass().getItemsByClass(SelectionSpecification.class);
+ if (!ss.isEmpty()) {
+ G2DParentNode shapeholder = selectionNode.getOrCreateNode(getNodeId("outlines", e), G2DParentNode.class);
+
+ for (SelectionSpecification es : ss) {
+ Outline outline = (Outline) es.getAdapter(Outline.class);
+ if (outline == null || outline.getElementShape(e) == null)
+ continue;
+ ShapeNode shapenode = shapeholder.getOrCreateNode(getNodeId("outline", e, es), SelectionShapeNode.class);
+// shapenode.setShape(es.getSelectionShape(e));
+// shapenode.setStroke(SELECTION_STROKE);
+// shapenode.setScaleStroke(true);
+// shapenode.setColor(color);
+// shapenode.setTransform(selectionTransform);
+// shapenode.setFill(false);
+ shapenode.setShape(outline.getElementShape(e));
+ StrokeSpec strokeSpec = (StrokeSpec) es.getAdapter(StrokeSpec.class);
+ if (strokeSpec != null && strokeSpec.getStroke(e) != null)
+ shapenode.setStroke(strokeSpec.getStroke(e));
+
+ shapenode.setScaleStroke(false);
+ //shapenode.setColor(color);
+ OutlineColorSpec foregroundColor = (OutlineColorSpec) es.getAdapter(OutlineColorSpec.class);
+ if (foregroundColor != null && foregroundColor.getColor(e) != null)
+ shapenode.setColor(foregroundColor.getColor(e));
+
+ Transform transform = (Transform) es.getAdapter(Transform.class);
+ if (transform != null && transform.getTransform(e) != null)
+ shapenode.setTransform(transform.getTransform(e));
+
+ shapenode.setFill(false);
+ FillColor fillColor = (FillColor) es.getAdapter(FillColor.class);
+ if (fillColor != null && fillColor.getFillColor(e) != null)
+ shapenode.setFill(true);
+// shapenode.setColor(ColorUtil.withAlpha(backgroundColor.getColor(e), 192));
+ }
+ return;
+ }
+
+ List<SelectionOutline> shapeHandlers = e.getElementClass().getItemsByClass(SelectionOutline.class);
+ if (!shapeHandlers.isEmpty()) {
+ G2DParentNode shapeholder = selectionNode.getOrCreateNode(getNodeId("outlines", e), G2DParentNode.class);
+
+ for (SelectionOutline es : shapeHandlers) {
+ ShapeNode shapenode = shapeholder.getOrCreateNode(getNodeId("outline", e, es), SelectionShapeNode.class);
+// shapenode.setShape(es.getSelectionShape(e));
+// shapenode.setStroke(SELECTION_STROKE);
+// shapenode.setScaleStroke(true);
+// shapenode.setColor(color);
+// shapenode.setTransform(selectionTransform);
+// shapenode.setFill(false);
+ shapenode.setShape(es.getSelectionShape(e));
+ shapenode.setStroke(null);
+ shapenode.setScaleStroke(false);
+ //shapenode.setColor(color);
+ shapenode.setColor(ColorUtil.withAlpha(color, 192));
+ shapenode.setTransform(selectionTransform);
+ shapenode.setFill(true);
+ }
+ return;
+ }
+
+ ISelectionProvider provider = this.getContext().getDefaultHintContext().getHint(KEY_SELECTION_PROVIDER);
+ if (provider != null) {
+ provider.init(selectionId, e, selectionNode, getNodeId("shape", e), selectionTransform, bounds, color);
+ } else {
+ SelectionNode s = selectionNode.getOrCreateNode(getNodeId("shape", e), SelectionNode.class);
+ s.init(selectionId, selectionTransform, bounds, color);
+ Double paddingFactor = diagram.getHint(DiagramHints.SELECTION_PADDING_SCALE_FACTOR);
+ if (paddingFactor != null)
+ s.setPaddingFactor(paddingFactor);
+ }
+ }
+
+ private void createSelectionReference(G2DParentNode selectionsNode, INode elementNode) {
+ String id = NodeUtil.lookupId(elementNode);
+ String uuid = null;
+ if (id == null)
+ id = uuid = UUID.randomUUID().toString();
+ NodeUtil.map(elementNode, id);
+ LinkNode link = selectionsNode.getOrCreateNode(id, LinkNode.class);
+ link.setDelegateId(id);
+ link.setIgnoreDelegate(true);
+ link.setLookupIdOwner(uuid != null);
+ }
+
+ private transient CharBuffer buf = CharBuffer.allocate(32);
+
+ private String getNodeId(String prefix, Object first) {
+ return getNodeId(prefix, first, null);
+ }
+
+ private String getNodeId(String prefix, Object first, Object second) {
+ buf.clear();
+ if (prefix != null)
+ buf.append(prefix);
+ if (first != null) {
+ buf.append('_');
+ buf.append("" + first.hashCode());
+ }
+ if (second != null) {
+ buf.append('_');
+ buf.append("" + second.hashCode());
+ }
+ buf.limit(buf.position());
+ buf.rewind();
+ //System.out.println("node id: " + buf.toString());
+ return buf.toString();
+ }
+
+ /**
+ * Get selection color for a selection Id
+ * @param selectionId selection id
+ * @return color for the id
+ */
+ protected Color getSelectionColor(int selectionId) {
+ if (selectionId == 0) {
+ Color c = getHint(KEY_SELECTION_FRAME_COLOR);
+ if (c != null)
+ return c;
+ return Color.BLACK;
+ }
+ Color c = selectionColor.get(selectionId);
+ if (c == null) {
+ Random r = new Random(selectionId);
+ c = new Color(r.nextFloat(), r.nextFloat(), r.nextFloat());
+ selectionColor.put(selectionId, c);
+ }
+ return c;
+ }
+
+ private transient ConcurrentMap<Integer, ElementNodeBridge> selections = new ConcurrentHashMap<Integer, ElementNodeBridge>();
+
+ ElementNodeBridge getSelectionMap(int selectionId) {
+ return selections.get(Integer.valueOf(selectionId));
+ }
+
+ ElementNodeBridge getOrCreateSelectionMap(int selectionId) {
+ Integer id = Integer.valueOf(selectionId);
+ synchronized (selections) {
+ ElementNodeBridge map = selections.get(id);
+ if (map != null)
+ return map;
+
+ selections.put(id, map = new ElementNodeBridge(id));
+ return map;
+ }
+ }
+
+ private transient Map<Integer, Color> selectionColor = new HashMap<Integer, Color>();
+
+ private transient BasicStroke SELECTION_STROKE = new BasicStroke(1.0f, BasicStroke.CAP_BUTT,
+ BasicStroke.JOIN_BEVEL, 10.0f,
+ new float[] { 5.0f, 5.0f }, 0.0f);
+
+ private transient Point2D pivotPoint = new Point2D.Double();
+
+ @HintListener(Class=Selection.class, Field="SELECTION0")
+ public void selectionChanged(IHintObservable sender, Key key, Object oldValue, Object newValue) {
+ //System.out.println("new selection: " + newValue);
+ updateSelections();
+ }
+
+ @HintListener(Class=Selection.class, Field="SELECTION0")
+ public void selectionRemoved(IHintObservable sender, Key key, Object oldValue) {
+ //System.out.println("selection removed: " + oldValue);
+ updateSelections();
+ }
+
+ private static Object BEGIN(String name) {
+ if (DEBUG) {
+ //return ThreadLog.BEGIN(name);
+ }
+ return null;
+ }
+
+ private static void END(Object task) {
+ if (DEBUG) {
+ //((Task) task).end();
+ }
+ }
+
+}
Code Review / simantics / platform.git / blobdiff