-/*******************************************************************************\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.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.Map;\r
-import java.util.Set;\r
-import java.util.Map.Entry;\r
-\r
-import org.simantics.g2d.canvas.impl.AbstractCanvasParticipant;\r
-import org.simantics.g2d.diagram.DiagramHints;\r
-import org.simantics.g2d.diagram.IDiagram;\r
-import org.simantics.g2d.element.IElement;\r
-import org.simantics.scenegraph.g2d.events.EventHandlerReflection.EventHandler;\r
-import org.simantics.scenegraph.g2d.events.command.CommandEvent;\r
-import org.simantics.scenegraph.g2d.events.command.Commands;\r
-import org.simantics.utils.DataContainer;\r
-import org.simantics.utils.datastructures.collections.CollectionUtils;\r
-import org.simantics.utils.datastructures.hints.IHintContext.Key;\r
-import org.simantics.utils.datastructures.hints.IHintContext.MouseSpecificKeyOf;\r
-import org.simantics.utils.threads.ThreadUtils;\r
-\r
-/**\r
- * Selection is a canvas utility used for managing selected elements.\r
- * <p>\r
- * There are multiple selection context. They are differentiated with selectionId.\r
- * Multiple selections are used in multi-user environments (such as multi touch screen).\r
- * In normal diagram setup SELECTION0 is the default selection.\r
- * \r
- * @author Toni Kalajainen\r
- */\r
-public class Selection extends AbstractCanvasParticipant {\r
-\r
- /** Key for the most common Selection0 */\r
- public static final SelectionHintKey SELECTION0 = new SelectionHintKey(0);\r
-\r
- private static final Set<IElement> NO_SELECTION = Collections\r
- .unmodifiableSet(new HashSet<IElement>(0));\r
-\r
- public static SelectionHintKey getKeyForSelectionId(int selectionId) {\r
- if (selectionId == 0)\r
- return SELECTION0;\r
- return new SelectionHintKey(selectionId);\r
- }\r
-\r
- @EventHandler(priority = 0)\r
- public boolean handleCommand(CommandEvent e)\r
- {\r
- if (e.command.equals( Commands.SELECT_ALL )) {\r
- IDiagram d = getHint( DiagramHints.KEY_DIAGRAM );\r
- if (d==null) return true;\r
- addAll(0, d.getElements());\r
- return true;\r
- }\r
- if (e.command.equals( Commands.INVERT_SELECTION )) {\r
- IDiagram d = getHint( DiagramHints.KEY_DIAGRAM );\r
- if (d==null) return true;\r
- Set<IElement> current = getSelection(0);\r
- Set<IElement> inverted = new HashSet<IElement>(d.getElements());\r
- inverted.removeAll(current);\r
- setSelection(0, inverted);\r
- return true;\r
- }\r
- return false;\r
- }\r
-\r
-\r
- /**\r
- * Get selection\r
- * \r
- * @param selectionId\r
- * selectionId\r
- * @return returns a set of pickables\r
- */\r
- public Set<IElement> getSelection(int selectionId) {\r
- Key key = getKeyForSelectionId(selectionId);\r
- Set<IElement> selection = getHint(key);\r
- if (selection == null)\r
- return NO_SELECTION;\r
- return new HashSet<IElement>(selection);\r
- }\r
-\r
- /**\r
- * Get all selections of all selection ids\r
- * @return all selections\r
- */\r
- public Set<IElement> getAllSelections() {\r
- Set<IElement> result = new HashSet<IElement>();\r
- for (Entry<SelectionHintKey, Object> entry : getContext()\r
- .getHintStack().getHintsOfClass(SelectionHintKey.class)\r
- .entrySet()) {\r
- @SuppressWarnings("unchecked")\r
- Set<IElement> set = (Set<IElement>) entry.getValue();\r
- if (set == null || set.isEmpty())\r
- continue;\r
- result.addAll(set);\r
- }\r
- return result;\r
-\r
- }\r
-\r
- /**\r
- * Get selections by selection id\r
- * \r
- * @return map of selection ids and selections\r
- */\r
- @SuppressWarnings("unchecked")\r
- public Map<Integer, Set<IElement>> getSelections() {\r
- Map<Integer, Set<IElement>> result = new HashMap<Integer, Set<IElement>>();\r
- for (Entry<SelectionHintKey, Object> entry : getContext()\r
- .getHintStack().getHintsOfClass(SelectionHintKey.class)\r
- .entrySet()) {\r
- Set<IElement> set = (Set<IElement>) entry.getValue();\r
- if (set == null || set.isEmpty())\r
- continue;\r
- result.put(entry.getKey().mouseId, set);\r
- }\r
- return result;\r
- }\r
-\r
- public int[] getSelectionIds() {\r
- Map<SelectionHintKey, Object> map = getContext().getHintStack()\r
- .getHintsOfClass(SelectionHintKey.class);\r
- int result[] = new int[map.size()];\r
- int i = 0;\r
- for (SelectionHintKey key : map.keySet())\r
- result[i++] = key.mouseId;\r
- return result;\r
- }\r
-\r
- public boolean setSelection(final int selectionId,\r
- final Collection<IElement> _selection) {\r
- final DataContainer<Boolean> result = new DataContainer<Boolean>(false);\r
- ThreadUtils.syncExec(getThread(), new Runnable() {\r
- @Override\r
- public void run() {\r
- Collection<IElement> selection = _selection;\r
- Key key = getKeyForSelectionId(selectionId);\r
- if (selection == null || selection.isEmpty())\r
- selection = NO_SELECTION;\r
- Set<IElement> oldSelection = getHint(key);\r
- if (oldSelection == null)\r
- oldSelection = NO_SELECTION;\r
- if (oldSelection.equals(selection))\r
- return;\r
- if (selection == NO_SELECTION) {\r
- removeHint(key);\r
- result.set(true);\r
- }\r
- Set<IElement> newSelection = Collections\r
- .unmodifiableSet(new HashSet<IElement>(selection));\r
- setHint(key, newSelection);\r
- result.set(true);\r
- }\r
- });\r
- return result.get();\r
- }\r
-\r
- public boolean setSelection(int selectionId, IElement selection) {\r
- ArrayList<IElement> list = new ArrayList<IElement>(1);\r
- list.add(selection);\r
- return setSelection(selectionId, list);\r
- }\r
-\r
- /**\r
- * Add item to selection\r
- * \r
- * @param pickable\r
- */\r
- public boolean add(final int selectionId, final IElement pickable) {\r
- final DataContainer<Boolean> result = new DataContainer<Boolean>(false);\r
- ThreadUtils.syncExec(getThread(), new Runnable() {\r
- @Override\r
- public void run() {\r
- Key key = getKeyForSelectionId(selectionId);\r
- Set<IElement> oldSelection = getSelection(selectionId);\r
- if (oldSelection.contains(pickable))\r
- return;\r
- Set<IElement> newSelection = new HashSet<IElement>(\r
- oldSelection);\r
- newSelection.add(pickable);\r
- newSelection = Collections.unmodifiableSet(newSelection);\r
- setHint(key, newSelection);\r
- result.set(true);\r
- }\r
- });\r
- return result.get();\r
- }\r
-\r
- /**\r
- * Add items to mouse0's selection\r
- * \r
- * @param pickables\r
- * @return\r
- */\r
- public boolean addAll(final int selectionId,\r
- final Collection<IElement> pickables) {\r
- final DataContainer<Boolean> result = new DataContainer<Boolean>(false);\r
- ThreadUtils.syncExec(getThread(), new Runnable() {\r
- @Override\r
- public void run() {\r
-\r
- Key key = getKeyForSelectionId(selectionId);\r
- Set<IElement> selection = getSelection(selectionId);\r
- if (selection.containsAll(pickables))\r
- return;\r
- Set<IElement> newSelection = new HashSet<IElement>(selection);\r
- newSelection.addAll(pickables);\r
- newSelection = Collections.unmodifiableSet(newSelection);\r
- setHint(key, newSelection);\r
- result.set(true);\r
- }\r
- });\r
- return result.get();\r
- }\r
-\r
- /**\r
- * Remove an item from mouse0's selection\r
- * \r
- * @param pickable\r
- * @return\r
- */\r
- public boolean remove(final int selectionId, final IElement pickable) {\r
- final DataContainer<Boolean> result = new DataContainer<Boolean>(false);\r
- ThreadUtils.syncExec(getThread(), new Runnable() {\r
- @Override\r
- public void run() {\r
- Key key = getKeyForSelectionId(selectionId);\r
- Set<IElement> oldSelection = getSelection(selectionId);\r
- if (!oldSelection.contains(pickable))\r
- return;\r
- Set<IElement> newSelection = new HashSet<IElement>(\r
- oldSelection);\r
- newSelection.remove(pickable);\r
- newSelection = Collections.unmodifiableSet(newSelection);\r
- setHint(key, newSelection);\r
- result.set(true);\r
- }\r
- });\r
- return result.get();\r
- }\r
-\r
- /**\r
- * Returns true if two collections have a common object\r
- * \r
- * @param x\r
- * @param y\r
- * @return\r
- */\r
- public static boolean containsAny(Collection<?> x, Collection<?> y) {\r
- for (Object o : x)\r
- if (y.contains(o))\r
- return true;\r
- return false;\r
- }\r
-\r
- /**\r
- * Remove items from mouse0's selection\r
- * \r
- * @param pickables\r
- * @return\r
- */\r
- public boolean removeAll(final int selectionId,\r
- final Collection<IElement> pickables) {\r
- final DataContainer<Boolean> result = new DataContainer<Boolean>(false);\r
- ThreadUtils.syncExec(getThread(), new Runnable() {\r
- @Override\r
- public void run() {\r
- Key key = getKeyForSelectionId(selectionId);\r
- Set<IElement> oldSelection = getSelection(selectionId);\r
- if (!containsAny(oldSelection, pickables))\r
- return;\r
- Set<IElement> newSelection = new HashSet<IElement>(\r
- oldSelection);\r
- newSelection.removeAll(pickables);\r
- newSelection = Collections.unmodifiableSet(newSelection);\r
- setHint(key, newSelection);\r
- result.set(true);\r
- }\r
- });\r
- return result.get();\r
- }\r
-\r
- /**\r
- * Retain items in mouse0's selection\r
- * \r
- * @param pickable\r
- * @return\r
- */\r
- public boolean retainAll(final int selectionId,\r
- final Collection<IElement> pickable) {\r
- final DataContainer<Boolean> result = new DataContainer<Boolean>(false);\r
- ThreadUtils.syncExec(getThread(), new Runnable() {\r
- @Override\r
- public void run() {\r
- Key key = getKeyForSelectionId(selectionId);\r
- Set<IElement> oldSelection = getSelection(selectionId);\r
- Set<IElement> newSelection = new HashSet<IElement>(\r
- oldSelection);\r
- newSelection.retainAll(pickable);\r
- if (oldSelection.equals(newSelection))\r
- return;\r
- newSelection = Collections.unmodifiableSet(newSelection);\r
- setHint(key, newSelection);\r
- result.set(true);\r
- }\r
- });\r
- return result.get();\r
- }\r
-\r
- public boolean contains(int selectionId, IElement pickable) {\r
- Set<IElement> oldSelection = getSelection(selectionId);\r
- return oldSelection.contains(pickable);\r
- }\r
-\r
- public synchronized void toggle(final int selectionId, final Set<IElement> toggleSet) {\r
- ThreadUtils.syncExec(getThread(), new Runnable() {\r
- @Override\r
- public void run() {\r
- Key key = getKeyForSelectionId(selectionId);\r
- Set<IElement> oldSelection = getSelection(selectionId);\r
- Set<IElement> newSelection = new HashSet<IElement>(oldSelection);\r
- CollectionUtils.toggle(newSelection, toggleSet);\r
- newSelection = Collections.unmodifiableSet(newSelection);\r
- setHint(key, newSelection);\r
- }\r
- });\r
- }\r
-\r
- /**\r
- * Toggle an item in a selection.\r
- */\r
- public synchronized void toggle(int selectionId, IElement pickable) {\r
- Key key = getKeyForSelectionId(selectionId);\r
- Set<IElement> oldSelection = getSelection(selectionId);\r
- Set<IElement> newSelection = new HashSet<IElement>(oldSelection);\r
-\r
- if (oldSelection.contains(pickable))\r
- newSelection.remove(pickable);\r
- else\r
- newSelection.add(pickable);\r
-\r
- newSelection = Collections.unmodifiableSet(newSelection);\r
- setHint(key, newSelection);\r
- }\r
-\r
- /**\r
- * Clear selection\r
- */\r
- public void clear(int selectionId) {\r
- Key key = getKeyForSelectionId(selectionId);\r
- removeHint(key);\r
- }\r
-\r
- /** Class for mouse specific hint keys */\r
- public static class SelectionHintKey extends MouseSpecificKeyOf {\r
- public SelectionHintKey(int mouseId) {\r
- super(mouseId, Set.class);\r
- }\r
- }\r
-\r
-\r
-}\r
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 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
+ *******************************************************************************/
+package org.simantics.g2d.diagram.participant;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+import java.util.Map.Entry;
+
+import org.simantics.g2d.canvas.impl.AbstractCanvasParticipant;
+import org.simantics.g2d.diagram.DiagramHints;
+import org.simantics.g2d.diagram.IDiagram;
+import org.simantics.g2d.element.IElement;
+import org.simantics.scenegraph.g2d.events.EventHandlerReflection.EventHandler;
+import org.simantics.scenegraph.g2d.events.command.CommandEvent;
+import org.simantics.scenegraph.g2d.events.command.Commands;
+import org.simantics.utils.DataContainer;
+import org.simantics.utils.datastructures.collections.CollectionUtils;
+import org.simantics.utils.datastructures.hints.IHintContext.Key;
+import org.simantics.utils.datastructures.hints.IHintContext.MouseSpecificKeyOf;
+import org.simantics.utils.threads.ThreadUtils;
+
+/**
+ * Selection is a canvas utility used for managing selected elements.
+ * <p>
+ * There are multiple selection context. They are differentiated with selectionId.
+ * Multiple selections are used in multi-user environments (such as multi touch screen).
+ * In normal diagram setup SELECTION0 is the default selection.
+ *
+ * @author Toni Kalajainen
+ */
+public class Selection extends AbstractCanvasParticipant {
+
+ /** Key for the most common Selection0 */
+ public static final SelectionHintKey SELECTION0 = new SelectionHintKey(0);
+
+ private static final Set<IElement> NO_SELECTION = Collections
+ .unmodifiableSet(new HashSet<IElement>(0));
+
+ public static SelectionHintKey getKeyForSelectionId(int selectionId) {
+ if (selectionId == 0)
+ return SELECTION0;
+ return new SelectionHintKey(selectionId);
+ }
+
+ @EventHandler(priority = 0)
+ public boolean handleCommand(CommandEvent e)
+ {
+ if (e.command.equals( Commands.SELECT_ALL )) {
+ IDiagram d = getHint( DiagramHints.KEY_DIAGRAM );
+ if (d==null) return true;
+ addAll(0, d.getElements());
+ return true;
+ }
+ if (e.command.equals( Commands.INVERT_SELECTION )) {
+ IDiagram d = getHint( DiagramHints.KEY_DIAGRAM );
+ if (d==null) return true;
+ Set<IElement> current = getSelection(0);
+ Set<IElement> inverted = new HashSet<IElement>(d.getElements());
+ inverted.removeAll(current);
+ setSelection(0, inverted);
+ return true;
+ }
+ return false;
+ }
+
+
+ /**
+ * Get selection
+ *
+ * @param selectionId
+ * selectionId
+ * @return returns a set of pickables
+ */
+ public Set<IElement> getSelection(int selectionId) {
+ Key key = getKeyForSelectionId(selectionId);
+ Set<IElement> selection = getHint(key);
+ if (selection == null)
+ return NO_SELECTION;
+ return new HashSet<IElement>(selection);
+ }
+
+ /**
+ * Get all selections of all selection ids
+ * @return all selections
+ */
+ public Set<IElement> getAllSelections() {
+ Set<IElement> result = new HashSet<IElement>();
+ for (Entry<SelectionHintKey, Object> entry : getContext()
+ .getHintStack().getHintsOfClass(SelectionHintKey.class)
+ .entrySet()) {
+ @SuppressWarnings("unchecked")
+ Set<IElement> set = (Set<IElement>) entry.getValue();
+ if (set == null || set.isEmpty())
+ continue;
+ result.addAll(set);
+ }
+ return result;
+
+ }
+
+ /**
+ * Get selections by selection id
+ *
+ * @return map of selection ids and selections
+ */
+ @SuppressWarnings("unchecked")
+ public Map<Integer, Set<IElement>> getSelections() {
+ Map<Integer, Set<IElement>> result = new HashMap<Integer, Set<IElement>>();
+ for (Entry<SelectionHintKey, Object> entry : getContext()
+ .getHintStack().getHintsOfClass(SelectionHintKey.class)
+ .entrySet()) {
+ Set<IElement> set = (Set<IElement>) entry.getValue();
+ if (set == null || set.isEmpty())
+ continue;
+ result.put(entry.getKey().mouseId, set);
+ }
+ return result;
+ }
+
+ public int[] getSelectionIds() {
+ Map<SelectionHintKey, Object> map = getContext().getHintStack()
+ .getHintsOfClass(SelectionHintKey.class);
+ int result[] = new int[map.size()];
+ int i = 0;
+ for (SelectionHintKey key : map.keySet())
+ result[i++] = key.mouseId;
+ return result;
+ }
+
+ public boolean setSelection(final int selectionId,
+ final Collection<IElement> _selection) {
+ final DataContainer<Boolean> result = new DataContainer<Boolean>(false);
+ ThreadUtils.syncExec(getThread(), new Runnable() {
+ @Override
+ public void run() {
+ Collection<IElement> selection = _selection;
+ Key key = getKeyForSelectionId(selectionId);
+ if (selection == null || selection.isEmpty())
+ selection = NO_SELECTION;
+ Set<IElement> oldSelection = getHint(key);
+ if (oldSelection == null)
+ oldSelection = NO_SELECTION;
+ if (oldSelection.equals(selection))
+ return;
+ if (selection == NO_SELECTION) {
+ removeHint(key);
+ result.set(true);
+ }
+ Set<IElement> newSelection = Collections
+ .unmodifiableSet(new HashSet<IElement>(selection));
+ setHint(key, newSelection);
+ result.set(true);
+ }
+ });
+ return result.get();
+ }
+
+ public boolean setSelection(int selectionId, IElement selection) {
+ ArrayList<IElement> list = new ArrayList<IElement>(1);
+ list.add(selection);
+ return setSelection(selectionId, list);
+ }
+
+ /**
+ * Add item to selection
+ *
+ * @param pickable
+ */
+ public boolean add(final int selectionId, final IElement pickable) {
+ final DataContainer<Boolean> result = new DataContainer<Boolean>(false);
+ ThreadUtils.syncExec(getThread(), new Runnable() {
+ @Override
+ public void run() {
+ Key key = getKeyForSelectionId(selectionId);
+ Set<IElement> oldSelection = getSelection(selectionId);
+ if (oldSelection.contains(pickable))
+ return;
+ Set<IElement> newSelection = new HashSet<IElement>(
+ oldSelection);
+ newSelection.add(pickable);
+ newSelection = Collections.unmodifiableSet(newSelection);
+ setHint(key, newSelection);
+ result.set(true);
+ }
+ });
+ return result.get();
+ }
+
+ /**
+ * Add items to mouse0's selection
+ *
+ * @param pickables
+ * @return
+ */
+ public boolean addAll(final int selectionId,
+ final Collection<IElement> pickables) {
+ final DataContainer<Boolean> result = new DataContainer<Boolean>(false);
+ ThreadUtils.syncExec(getThread(), new Runnable() {
+ @Override
+ public void run() {
+
+ Key key = getKeyForSelectionId(selectionId);
+ Set<IElement> selection = getSelection(selectionId);
+ if (selection.containsAll(pickables))
+ return;
+ Set<IElement> newSelection = new HashSet<IElement>(selection);
+ newSelection.addAll(pickables);
+ newSelection = Collections.unmodifiableSet(newSelection);
+ setHint(key, newSelection);
+ result.set(true);
+ }
+ });
+ return result.get();
+ }
+
+ /**
+ * Remove an item from mouse0's selection
+ *
+ * @param pickable
+ * @return
+ */
+ public boolean remove(final int selectionId, final IElement pickable) {
+ final DataContainer<Boolean> result = new DataContainer<Boolean>(false);
+ ThreadUtils.syncExec(getThread(), new Runnable() {
+ @Override
+ public void run() {
+ Key key = getKeyForSelectionId(selectionId);
+ Set<IElement> oldSelection = getSelection(selectionId);
+ if (!oldSelection.contains(pickable))
+ return;
+ Set<IElement> newSelection = new HashSet<IElement>(
+ oldSelection);
+ newSelection.remove(pickable);
+ newSelection = Collections.unmodifiableSet(newSelection);
+ setHint(key, newSelection);
+ result.set(true);
+ }
+ });
+ return result.get();
+ }
+
+ /**
+ * Returns true if two collections have a common object
+ *
+ * @param x
+ * @param y
+ * @return
+ */
+ public static boolean containsAny(Collection<?> x, Collection<?> y) {
+ for (Object o : x)
+ if (y.contains(o))
+ return true;
+ return false;
+ }
+
+ /**
+ * Remove items from mouse0's selection
+ *
+ * @param pickables
+ * @return
+ */
+ public boolean removeAll(final int selectionId,
+ final Collection<IElement> pickables) {
+ final DataContainer<Boolean> result = new DataContainer<Boolean>(false);
+ ThreadUtils.syncExec(getThread(), new Runnable() {
+ @Override
+ public void run() {
+ Key key = getKeyForSelectionId(selectionId);
+ Set<IElement> oldSelection = getSelection(selectionId);
+ if (!containsAny(oldSelection, pickables))
+ return;
+ Set<IElement> newSelection = new HashSet<IElement>(
+ oldSelection);
+ newSelection.removeAll(pickables);
+ newSelection = Collections.unmodifiableSet(newSelection);
+ setHint(key, newSelection);
+ result.set(true);
+ }
+ });
+ return result.get();
+ }
+
+ /**
+ * Retain items in mouse0's selection
+ *
+ * @param pickable
+ * @return
+ */
+ public boolean retainAll(final int selectionId,
+ final Collection<IElement> pickable) {
+ final DataContainer<Boolean> result = new DataContainer<Boolean>(false);
+ ThreadUtils.syncExec(getThread(), new Runnable() {
+ @Override
+ public void run() {
+ Key key = getKeyForSelectionId(selectionId);
+ Set<IElement> oldSelection = getSelection(selectionId);
+ Set<IElement> newSelection = new HashSet<IElement>(
+ oldSelection);
+ newSelection.retainAll(pickable);
+ if (oldSelection.equals(newSelection))
+ return;
+ newSelection = Collections.unmodifiableSet(newSelection);
+ setHint(key, newSelection);
+ result.set(true);
+ }
+ });
+ return result.get();
+ }
+
+ public boolean contains(int selectionId, IElement pickable) {
+ Set<IElement> oldSelection = getSelection(selectionId);
+ return oldSelection.contains(pickable);
+ }
+
+ public synchronized void toggle(final int selectionId, final Set<IElement> toggleSet) {
+ ThreadUtils.syncExec(getThread(), new Runnable() {
+ @Override
+ public void run() {
+ Key key = getKeyForSelectionId(selectionId);
+ Set<IElement> oldSelection = getSelection(selectionId);
+ Set<IElement> newSelection = new HashSet<IElement>(oldSelection);
+ CollectionUtils.toggle(newSelection, toggleSet);
+ newSelection = Collections.unmodifiableSet(newSelection);
+ setHint(key, newSelection);
+ }
+ });
+ }
+
+ /**
+ * Toggle an item in a selection.
+ */
+ public synchronized void toggle(int selectionId, IElement pickable) {
+ Key key = getKeyForSelectionId(selectionId);
+ Set<IElement> oldSelection = getSelection(selectionId);
+ Set<IElement> newSelection = new HashSet<IElement>(oldSelection);
+
+ if (oldSelection.contains(pickable))
+ newSelection.remove(pickable);
+ else
+ newSelection.add(pickable);
+
+ newSelection = Collections.unmodifiableSet(newSelection);
+ setHint(key, newSelection);
+ }
+
+ /**
+ * Clear selection
+ */
+ public void clear(int selectionId) {
+ Key key = getKeyForSelectionId(selectionId);
+ removeHint(key);
+ }
+
+ /** Class for mouse specific hint keys */
+ public static class SelectionHintKey extends MouseSpecificKeyOf {
+ public SelectionHintKey(int mouseId) {
+ super(mouseId, Set.class);
+ }
+ }
+
+
+}
Code Review / simantics / platform.git / blobdiff