-/*******************************************************************************\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.diagram.handler;\r
-\r
-import java.util.Set;\r
-\r
-import org.eclipse.jface.action.IStatusLineManager;\r
-import org.eclipse.swt.widgets.Display;\r
-import org.simantics.g2d.canvas.impl.DependencyReflection.Dependency;\r
-import org.simantics.g2d.diagram.participant.AbstractDiagramParticipant;\r
-import org.simantics.g2d.diagram.participant.Selection;\r
-import org.simantics.g2d.element.IElement;\r
-import org.simantics.g2d.utils.TopologicalSelectionExpander;\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
-\r
-/**\r
- * This handler responds to the EXPAND_SELECTION command. It attempts to expand\r
- * the current selection for pointer 0, meaning {@link Selection#SELECTION0}.\r
- * \r
- * @see TopologicalSelectionExpander\r
- * @see Selection the current diagram selection source\r
- * \r
- * @author Tuukka Lehtonen\r
- */\r
-public class ExpandSelectionHandler extends AbstractDiagramParticipant {\r
-\r
- private final IStatusLineManager statusLine;\r
- \r
- @Dependency Selection selection;\r
-\r
- public ExpandSelectionHandler(IStatusLineManager statusLine) {\r
- this.statusLine = statusLine;\r
- }\r
- \r
- @EventHandler(priority = 0)\r
- public boolean handleExpand(CommandEvent event) {\r
- if (Commands.EXPAND_SELECTION.equals( event.command )) {\r
- return expandSelection(0);\r
- }\r
- return false;\r
- }\r
-\r
- /**\r
- * @param selectionId the id of the selection to expand\r
- * @return <code>true</code> if the selection changed as a result of the\r
- * expansion, <code>false</code> if not\r
- */\r
- public boolean expandSelection(int selectionId) {\r
- Set<IElement> start = selection.getSelection(selectionId);\r
- TopologicalSelectionExpander expander = new TopologicalSelectionExpander(diagram, start);\r
- final Set<IElement> expanded = expander.expandedIfChanged();\r
- if (expanded == null)\r
- return false;\r
- selection.setSelection(selectionId, expanded);\r
- if(statusLine != null) {\r
- Display.getDefault().asyncExec(new Runnable() {\r
-\r
- @Override\r
- public void run() {\r
- statusLine.setMessage("Expanded selection to include " + expanded.size() + " (from " + diagram.getElements().size() + ") items.");\r
- }\r
- \r
- });\r
- }\r
- return true;\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.diagram.handler;
+
+import java.util.Set;
+
+import org.eclipse.jface.action.IStatusLineManager;
+import org.eclipse.swt.widgets.Display;
+import org.simantics.g2d.canvas.impl.DependencyReflection.Dependency;
+import org.simantics.g2d.diagram.participant.AbstractDiagramParticipant;
+import org.simantics.g2d.diagram.participant.Selection;
+import org.simantics.g2d.element.IElement;
+import org.simantics.g2d.utils.TopologicalSelectionExpander;
+import org.simantics.scenegraph.g2d.events.EventHandlerReflection.EventHandler;
+import org.simantics.scenegraph.g2d.events.command.CommandEvent;
+import org.simantics.scenegraph.g2d.events.command.Commands;
+
+/**
+ * This handler responds to the EXPAND_SELECTION command. It attempts to expand
+ * the current selection for pointer 0, meaning {@link Selection#SELECTION0}.
+ *
+ * @see TopologicalSelectionExpander
+ * @see Selection the current diagram selection source
+ *
+ * @author Tuukka Lehtonen
+ */
+public class ExpandSelectionHandler extends AbstractDiagramParticipant {
+
+ private final IStatusLineManager statusLine;
+
+ @Dependency Selection selection;
+
+ public ExpandSelectionHandler(IStatusLineManager statusLine) {
+ this.statusLine = statusLine;
+ }
+
+ @EventHandler(priority = 0)
+ public boolean handleExpand(CommandEvent event) {
+ if (Commands.EXPAND_SELECTION.equals( event.command )) {
+ return expandSelection(0);
+ }
+ return false;
+ }
+
+ /**
+ * @param selectionId the id of the selection to expand
+ * @return <code>true</code> if the selection changed as a result of the
+ * expansion, <code>false</code> if not
+ */
+ public boolean expandSelection(int selectionId) {
+ Set<IElement> start = selection.getSelection(selectionId);
+ TopologicalSelectionExpander expander = new TopologicalSelectionExpander(diagram, start);
+ final Set<IElement> expanded = expander.expandedIfChanged();
+ if (expanded == null)
+ return false;
+ selection.setSelection(selectionId, expanded);
+ if(statusLine != null) {
+ Display.getDefault().asyncExec(new Runnable() {
+
+ @Override
+ public void run() {
+ statusLine.setMessage("Expanded selection to include " + expanded.size() + " (from " + diagram.getElements().size() + ") items.");
+ }
+
+ });
+ }
+ return true;
+ }
+
+}
Code Review / simantics / platform.git / blobdiff