-/*******************************************************************************\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.browsing.ui.swt;\r
-\r
-import gnu.trove.map.hash.THashMap;\r
-import gnu.trove.set.hash.THashSet;\r
-\r
-import java.util.Collection;\r
-import java.util.HashSet;\r
-import java.util.Map;\r
-import java.util.Set;\r
-\r
-import org.eclipse.swt.SWT;\r
-import org.eclipse.swt.widgets.Event;\r
-import org.eclipse.swt.widgets.Listener;\r
-import org.eclipse.swt.widgets.Tree;\r
-import org.simantics.browsing.ui.BuiltinKeys;\r
-import org.simantics.browsing.ui.GraphExplorer;\r
-import org.simantics.browsing.ui.NodeContext;\r
-import org.simantics.browsing.ui.NodeContext.PrimitiveQueryKey;\r
-import org.simantics.browsing.ui.PrimitiveQueryUpdater;\r
-import org.simantics.browsing.ui.common.processors.AbstractPrimitiveQueryProcessor;\r
-import org.simantics.browsing.ui.common.processors.IsExpandedProcessor;\r
-import org.simantics.browsing.ui.common.processors.ProcessorLifecycle;\r
-\r
-/**\r
- * @author Tuukka Lehtonen\r
- */\r
-public class DefaultIsExpandedProcessor extends AbstractPrimitiveQueryProcessor<Boolean> implements\r
-IsExpandedProcessor, ProcessorLifecycle {\r
-\r
- /**\r
- * The set of currently expanded node contexts.\r
- */\r
- private final Set<NodeContext> expanded = new THashSet<NodeContext>();\r
- private final Map<NodeContext, PrimitiveQueryUpdater> expandedQueries = new THashMap<NodeContext, PrimitiveQueryUpdater>();\r
-\r
- private Tree tree;\r
-\r
- public DefaultIsExpandedProcessor() {\r
- }\r
-\r
- @Override\r
- public Object getIdentifier() {\r
- return BuiltinKeys.IS_EXPANDED;\r
- }\r
-\r
- @Override\r
- public String toString() {\r
- return "IsExpandedProcessor";\r
- }\r
-\r
- @Override\r
- public Boolean query(PrimitiveQueryUpdater updater, NodeContext context, PrimitiveQueryKey<Boolean> key) {\r
- boolean isExpanded = expanded.contains(context);\r
- //System.out.println("isExpanded(" + updater + ", " + context + "): " + isExpanded);\r
- expandedQueries.put(context, updater);\r
- return Boolean.valueOf(isExpanded);\r
- }\r
-\r
- @Override\r
- public Collection<NodeContext> getExpanded() {\r
- return new HashSet<NodeContext>(expanded);\r
- }\r
-\r
- @Override\r
- public boolean getExpanded(NodeContext context) {\r
- return this.expanded.contains(context);\r
- }\r
-\r
- @Override\r
- public boolean setExpanded(NodeContext context, boolean expanded) {\r
- return _setExpanded(context, expanded);\r
- }\r
-\r
- @Override\r
- public boolean replaceExpanded(NodeContext context, boolean expanded) {\r
- return nodeStatusChanged(context, expanded);\r
- }\r
-\r
- private boolean _setExpanded(NodeContext context, boolean expanded) {\r
- if (expanded) {\r
- return this.expanded.add(context);\r
- } else {\r
- return this.expanded.remove(context);\r
- }\r
- }\r
-\r
- Listener treeListener = new Listener() {\r
- @Override\r
- public void handleEvent(Event event) {\r
- NodeContext context = (NodeContext) event.item.getData();\r
- switch (event.type) {\r
- case SWT.Expand:\r
- nodeStatusChanged(context, true);\r
- break;\r
- case SWT.Collapse:\r
- nodeStatusChanged(context, false);\r
- break;\r
- }\r
- }\r
- };\r
-\r
- protected boolean nodeStatusChanged(NodeContext context, boolean expanded) {\r
- boolean result = _setExpanded(context, expanded);\r
- PrimitiveQueryUpdater updater = expandedQueries.get(context);\r
- if (updater != null)\r
- updater.scheduleReplace(context, BuiltinKeys.IS_EXPANDED, expanded);\r
- return result;\r
- }\r
-\r
- @Override\r
- public void attached(GraphExplorer explorer) {\r
- Object control = explorer.getControl();\r
- if (control instanceof Tree) {\r
- this.tree = (Tree) control;\r
- tree.addListener(SWT.Expand, treeListener);\r
- tree.addListener(SWT.Collapse, treeListener);\r
- } else {\r
- System.out.println("WARNING: " + getClass().getSimpleName() + " attached to unsupported control: " + control);\r
- }\r
- }\r
-\r
- @Override\r
- public void clear() {\r
- expanded.clear();\r
- expandedQueries.clear();\r
- }\r
-\r
- @Override\r
- public void detached(GraphExplorer explorer) {\r
- clear();\r
- if (tree != null) {\r
- tree.removeListener(SWT.Expand, treeListener);\r
- tree.removeListener(SWT.Collapse, treeListener);\r
- tree = null;\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.browsing.ui.swt;
+
+import gnu.trove.map.hash.THashMap;
+import gnu.trove.set.hash.THashSet;
+
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.widgets.Event;
+import org.eclipse.swt.widgets.Listener;
+import org.eclipse.swt.widgets.Tree;
+import org.simantics.browsing.ui.BuiltinKeys;
+import org.simantics.browsing.ui.GraphExplorer;
+import org.simantics.browsing.ui.NodeContext;
+import org.simantics.browsing.ui.NodeContext.PrimitiveQueryKey;
+import org.simantics.browsing.ui.PrimitiveQueryUpdater;
+import org.simantics.browsing.ui.common.processors.AbstractPrimitiveQueryProcessor;
+import org.simantics.browsing.ui.common.processors.IsExpandedProcessor;
+import org.simantics.browsing.ui.common.processors.ProcessorLifecycle;
+
+/**
+ * @author Tuukka Lehtonen
+ */
+public class DefaultIsExpandedProcessor extends AbstractPrimitiveQueryProcessor<Boolean> implements
+IsExpandedProcessor, ProcessorLifecycle {
+
+ /**
+ * The set of currently expanded node contexts.
+ */
+ private final Set<NodeContext> expanded = new THashSet<NodeContext>();
+ private final Map<NodeContext, PrimitiveQueryUpdater> expandedQueries = new THashMap<NodeContext, PrimitiveQueryUpdater>();
+
+ private Tree tree;
+
+ public DefaultIsExpandedProcessor() {
+ }
+
+ @Override
+ public Object getIdentifier() {
+ return BuiltinKeys.IS_EXPANDED;
+ }
+
+ @Override
+ public String toString() {
+ return "IsExpandedProcessor";
+ }
+
+ @Override
+ public Boolean query(PrimitiveQueryUpdater updater, NodeContext context, PrimitiveQueryKey<Boolean> key) {
+ boolean isExpanded = expanded.contains(context);
+ //System.out.println("isExpanded(" + updater + ", " + context + "): " + isExpanded);
+ expandedQueries.put(context, updater);
+ return Boolean.valueOf(isExpanded);
+ }
+
+ @Override
+ public Collection<NodeContext> getExpanded() {
+ return new HashSet<NodeContext>(expanded);
+ }
+
+ @Override
+ public boolean getExpanded(NodeContext context) {
+ return this.expanded.contains(context);
+ }
+
+ @Override
+ public boolean setExpanded(NodeContext context, boolean expanded) {
+ return _setExpanded(context, expanded);
+ }
+
+ @Override
+ public boolean replaceExpanded(NodeContext context, boolean expanded) {
+ return nodeStatusChanged(context, expanded);
+ }
+
+ private boolean _setExpanded(NodeContext context, boolean expanded) {
+ if (expanded) {
+ return this.expanded.add(context);
+ } else {
+ return this.expanded.remove(context);
+ }
+ }
+
+ Listener treeListener = new Listener() {
+ @Override
+ public void handleEvent(Event event) {
+ NodeContext context = (NodeContext) event.item.getData();
+ switch (event.type) {
+ case SWT.Expand:
+ nodeStatusChanged(context, true);
+ break;
+ case SWT.Collapse:
+ nodeStatusChanged(context, false);
+ break;
+ }
+ }
+ };
+
+ protected boolean nodeStatusChanged(NodeContext context, boolean expanded) {
+ boolean result = _setExpanded(context, expanded);
+ PrimitiveQueryUpdater updater = expandedQueries.get(context);
+ if (updater != null)
+ updater.scheduleReplace(context, BuiltinKeys.IS_EXPANDED, expanded);
+ return result;
+ }
+
+ @Override
+ public void attached(GraphExplorer explorer) {
+ Object control = explorer.getControl();
+ if (control instanceof Tree) {
+ this.tree = (Tree) control;
+ tree.addListener(SWT.Expand, treeListener);
+ tree.addListener(SWT.Collapse, treeListener);
+ } else {
+ System.out.println("WARNING: " + getClass().getSimpleName() + " attached to unsupported control: " + control);
+ }
+ }
+
+ @Override
+ public void clear() {
+ expanded.clear();
+ expandedQueries.clear();
+ }
+
+ @Override
+ public void detached(GraphExplorer explorer) {
+ clear();
+ if (tree != null) {
+ tree.removeListener(SWT.Expand, treeListener);
+ tree.removeListener(SWT.Collapse, treeListener);
+ tree = null;
+ }
+ }
+
}
\ No newline at end of file
Code Review / simantics / platform.git / blobdiff