]> gerrit.simantics Code Review - simantics/platform.git/blobdiff - bundles/org.simantics.selectionview/src/org/simantics/selectionview/PropertyTable.java
Fixed all line endings of the repository
[simantics/platform.git] / bundles / org.simantics.selectionview / src / org / simantics / selectionview / PropertyTable.java
index 4bb45be716b3723ee1a3bc707d7902f5a059dee8..31da15bb4ef1b6bbcecd48af6723fbd1acd8db3a 100644 (file)
-/*******************************************************************************\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.selectionview;\r
-\r
-import java.util.ArrayList;\r
-import java.util.Iterator;\r
-import java.util.List;\r
-import java.util.function.Consumer;\r
-\r
-import org.eclipse.jface.action.ContributionItem;\r
-import org.eclipse.jface.action.IContributionItem;\r
-import org.eclipse.jface.layout.GridDataFactory;\r
-import org.eclipse.jface.resource.JFaceResources;\r
-import org.eclipse.jface.resource.LocalResourceManager;\r
-import org.eclipse.jface.viewers.IPostSelectionProvider;\r
-import org.eclipse.jface.viewers.ISelection;\r
-import org.eclipse.jface.viewers.ISelectionProvider;\r
-import org.eclipse.jface.viewers.IStructuredSelection;\r
-import org.eclipse.swt.SWT;\r
-import org.eclipse.swt.dnd.DND;\r
-import org.eclipse.swt.dnd.DragSource;\r
-import org.eclipse.swt.widgets.Composite;\r
-import org.eclipse.swt.widgets.Control;\r
-import org.eclipse.swt.widgets.Event;\r
-import org.eclipse.swt.widgets.Listener;\r
-import org.eclipse.swt.widgets.ToolBar;\r
-import org.eclipse.swt.widgets.ToolItem;\r
-import org.eclipse.swt.widgets.Tree;\r
-import org.eclipse.ui.IActionBars;\r
-import org.eclipse.ui.IWorkbenchSite;\r
-import org.simantics.browsing.ui.GraphExplorer;\r
-import org.simantics.browsing.ui.common.ColumnKeys;\r
-import org.simantics.browsing.ui.common.EvaluatorData;\r
-import org.simantics.browsing.ui.common.EvaluatorData.Evaluator;\r
-import org.simantics.browsing.ui.common.EvaluatorDataImpl;\r
-import org.simantics.browsing.ui.common.comparators.AlphanumericComparatorFactory;\r
-import org.simantics.browsing.ui.common.processors.ComparableFactoryResolver;\r
-import org.simantics.browsing.ui.common.processors.ComparableSelectorQueryProcessor;\r
-import org.simantics.browsing.ui.common.processors.FilterSelectionRequestQueryProcessor;\r
-import org.simantics.browsing.ui.common.processors.ImageDecoratorFactoryResolver;\r
-import org.simantics.browsing.ui.common.processors.ImagerFactoryResolver;\r
-import org.simantics.browsing.ui.common.processors.LabelDecoratorFactoryResolver;\r
-import org.simantics.browsing.ui.common.processors.LabelerFactoryResolver;\r
-import org.simantics.browsing.ui.common.processors.UserSelectedComparableFactoryQueryProcessor;\r
-import org.simantics.browsing.ui.common.processors.UserSelectedViewpointFactoryQueryProcessor;\r
-import org.simantics.browsing.ui.common.processors.ViewpointFactoryResolver;\r
-import org.simantics.browsing.ui.common.views.IFilterArea;\r
-import org.simantics.browsing.ui.common.views.IFilterAreaProvider;\r
-import org.simantics.browsing.ui.common.views.PropertyTableConstants;\r
-import org.simantics.browsing.ui.graph.impl.ArrayPropertyLabelerFactory;\r
-import org.simantics.browsing.ui.graph.impl.ArrayPropertyValueViewpointFactory;\r
-import org.simantics.browsing.ui.graph.impl.AsyncReadGraphDataSource;\r
-import org.simantics.browsing.ui.graph.impl.PropertyViewpointFactory;\r
-import org.simantics.browsing.ui.graph.impl.ReadGraphDataSource;\r
-import org.simantics.browsing.ui.graph.impl.RelationContextLabelerFactory;\r
-import org.simantics.browsing.ui.graph.impl.ResourceProperty;\r
-import org.simantics.browsing.ui.graph.impl.StringRepresentationLabelerFactory;\r
-import org.simantics.browsing.ui.swt.ArrayPropertyImagerFactory;\r
-import org.simantics.browsing.ui.swt.ComparatorSelector;\r
-import org.simantics.browsing.ui.swt.ContextMenuInitializer;\r
-import org.simantics.browsing.ui.swt.GraphExplorerFactory;\r
-import org.simantics.browsing.ui.swt.PropertyTableUtil;\r
-import org.simantics.browsing.ui.swt.RootFilterArea;\r
-import org.simantics.browsing.ui.swt.TypesQueryProcessor;\r
-import org.simantics.browsing.ui.swt.ViewpointSelector;\r
-import org.simantics.db.AsyncReadGraph;\r
-import org.simantics.db.ReadGraph;\r
-import org.simantics.db.RelationContext;\r
-import org.simantics.db.Resource;\r
-import org.simantics.db.Session;\r
-import org.simantics.db.Statement;\r
-import org.simantics.db.common.ResourceArray;\r
-import org.simantics.db.management.ISessionContext;\r
-import org.simantics.ui.dnd.BasicDragSource;\r
-import org.simantics.ui.dnd.SessionContainer;\r
-import org.simantics.ui.utils.ResourceAdaptionUtils;\r
-import org.simantics.utils.ObjectUtils;\r
-import org.simantics.utils.ui.LayoutUtils;\r
-\r
-\r
-/**\r
- * <p>\r
- * Subclasses may extend or reimplement the following methods as required:\r
- * <ul>\r
- *   <li><code>createExplorerControl</code> - reimplement to customize the way the IGraphExplorer control is created</li>\r
- *   <li><code>createControl</code> - reimplement to customize the way other supplementary controls get created</li>\r
- *   <li><code>createDragSource</code> - reimplement to customize the kind of DragSource this control provides</li>\r
- * </ul>\r
- * </p>\r
- * \r
- * @author Tuukka Lehtonen\r
- */\r
-public class PropertyTable extends Composite implements IFilterAreaProvider, IPropertyTab2 {\r
-\r
-    protected IWorkbenchSite                              site;\r
-    protected GraphExplorer                               explorer;\r
-    protected Object                                      dragSource;\r
-    protected ISessionContext                             sessionContext;\r
-    protected ISelection                                  currentInput;\r
-\r
-    protected UserSelectedComparableFactoryQueryProcessor userSelectedComparableFactoryQueryProcessor;\r
-    protected UserSelectedViewpointFactoryQueryProcessor  userSelectedViewpointFactoryQueryProcessor;\r
-    protected FilterSelectionRequestQueryProcessor        filterSelectionRequestQueryProcessor;\r
-\r
-    protected LocalResourceManager resourceManager;\r
-\r
-    private RootFilterArea filterArea;\r
-    private IContributionItem filterAreaContribution;\r
-    private IActionBars actionBars;\r
-\r
-    public PropertyTable(IWorkbenchSite site, Composite parent, int style) {\r
-        super(parent, style);\r
-        this.site = site;\r
-        //System.out.println("created " + this + " " + System.identityHashCode(this));\r
-        resourceManager = new LocalResourceManager(JFaceResources.getResources(parent.getDisplay()));\r
-\r
-        addListener(SWT.Dispose, new Listener() {\r
-            @Override\r
-            public void handleEvent(Event event) {\r
-                //System.out.println("DISPOSING " + this + " " + System.identityHashCode(PropertyTable.this));\r
-                tableDisposed();\r
-\r
-                PropertyTableUtil.setupDragSource(dragSource, null);\r
-\r
-                PropertyTable.this.site = null;\r
-                explorer = null;\r
-                dragSource = null;\r
-                sessionContext = null;\r
-                currentInput = null;\r
-\r
-                userSelectedComparableFactoryQueryProcessor = null;\r
-                userSelectedViewpointFactoryQueryProcessor = null;\r
-                filterSelectionRequestQueryProcessor = null;\r
-\r
-                resourceManager.dispose();\r
-            }\r
-        });\r
-    }\r
-\r
-    /**\r
-     * Override to perform actions when this property table is disposed.\r
-     * Remember to call super.\r
-     */\r
-    protected void tableDisposed() {\r
-        getDisplay().asyncExec(new Runnable() {\r
-            @Override\r
-            public void run() {\r
-                if (filterAreaContribution != null) {\r
-                    actionBars.getToolBarManager().remove(filterAreaContribution);\r
-                    filterAreaContribution.dispose();\r
-                    filterAreaContribution = null;\r
-                    actionBars.updateActionBars();\r
-                }\r
-            }\r
-        });\r
-    }\r
-\r
-    @Override\r
-    public Control getControl() {\r
-        return this;\r
-    }\r
-\r
-    @Override\r
-    public void createControl(final Composite parent, ISessionContext context) {\r
-        explorer = createExplorerControl(parent);\r
-        dragSource = createDragSource(explorer);\r
-\r
-        Control control = explorer.getControl();\r
-\r
-        userSelectedComparableFactoryQueryProcessor = new UserSelectedComparableFactoryQueryProcessor();\r
-        userSelectedViewpointFactoryQueryProcessor = new UserSelectedViewpointFactoryQueryProcessor();\r
-        filterSelectionRequestQueryProcessor = new FilterSelectionRequestQueryProcessor();\r
-\r
-        parent.setLayout(LayoutUtils.createNoBorderGridLayout(2, false));\r
-        GridDataFactory.fillDefaults().grab(true, true).span(2,1).applyTo(control);\r
-\r
-        addControls(parent);\r
-        setSessionContext(context);\r
-    }\r
-\r
-    protected void addControls(Composite parent) {\r
-        //createSelectors(parent);\r
-        //createFilterArea(parent);\r
-    }\r
-\r
-    protected void createSelectors(Composite parent) {\r
-        Control control = explorer.getControl();\r
-        ComparatorSelector comparatorSelector = new ComparatorSelector(explorer, userSelectedComparableFactoryQueryProcessor, parent, SWT.READ_ONLY);\r
-        comparatorSelector.moveAbove(control);\r
-        ViewpointSelector viewpointSelector = new ViewpointSelector(explorer, userSelectedViewpointFactoryQueryProcessor, parent, SWT.READ_ONLY);\r
-        viewpointSelector.moveAbove(control);\r
-    }\r
-\r
-    protected void createFilterArea(IActionBars actionBars) {\r
-        this.filterAreaContribution = new ContributionItem("filterArea") {\r
-            ToolItem item;\r
-            @Override\r
-            public boolean isDynamic() {\r
-                return true;\r
-            }\r
-            @Override\r
-            public final void fill(ToolBar parent, int index) {\r
-                Control control = createControl(parent);\r
-                item = new ToolItem(parent, SWT.SEPARATOR, index);\r
-                item.setControl(control);\r
-                item.setWidth(computeWidth(control));\r
-            }\r
-            protected Control createControl(Composite parent) {\r
-                filterArea = new RootFilterArea(explorer, filterSelectionRequestQueryProcessor, parent, SWT.NONE);\r
-                return filterArea;\r
-            }\r
-            protected int computeWidth(Control control) {\r
-                // FIXME: better size control?\r
-                return control.computeSize(150, SWT.DEFAULT, true).x;\r
-            }\r
-            @Override\r
-            public void dispose() {\r
-                if (filterArea != null) {\r
-                    filterArea.dispose();\r
-                    filterArea = null;\r
-                }\r
-                if (item != null) {\r
-                    item.dispose();\r
-                    item = null;\r
-                }\r
-            }\r
-        };\r
-        this.actionBars = actionBars;\r
-        actionBars.getToolBarManager().add(filterAreaContribution);\r
-    }\r
-\r
-    protected void createFilterArea(Composite parent) {\r
-        Control control = explorer.getControl();\r
-        filterArea = new RootFilterArea(explorer, filterSelectionRequestQueryProcessor, parent, SWT.NONE);\r
-        filterArea.moveAbove(control);\r
-    }\r
-\r
-    protected GraphExplorer createExplorerControl(Composite parent) {\r
-        GraphExplorer e = GraphExplorerFactory.getInstance().create(parent, SWT.FULL_SELECTION);\r
-        Control c = e.getControl();\r
-        ISelectionProvider selectionProvider = (ISelectionProvider)e.getAdapter(ISelectionProvider.class);\r
-        new ContextMenuInitializer("#PropertiesPopup").createContextMenu(c, selectionProvider, site);\r
-        if (c instanceof Tree)\r
-            ((Tree) c).setLinesVisible(true);\r
-        e.setColumns(PropertyTableConstants.NORMAL_COLUMNS);\r
-        return e;\r
-    }\r
-\r
-    /**\r
-     * Override to customize drag source initialization. This default\r
-     * implementation creates a {@link BasicDragSource}. The drag source is\r
-     * initialized when the active database session is set.\r
-     * \r
-     * @param explorer\r
-     * @return the object representing the drag source. If the object implements\r
-     *         {@link SessionContainer}, its\r
-     *         {@link SessionContainer#setSession(Session)} will be invoked\r
-     *         every time the active database session changes.\r
-     */\r
-    protected Object createDragSource(GraphExplorer explorer) {\r
-        Control c = explorer.getControl();\r
-        DragSource existingSource = (DragSource) c.getData(DND.DRAG_SOURCE_KEY);\r
-        if (existingSource != null)\r
-            return existingSource;\r
-        return PropertyTableUtil.createResourceDragSource(explorer);\r
-    }\r
-\r
-    protected void setupDragSource(ISessionContext sessionContext) {\r
-        PropertyTableUtil.setupDragSource(dragSource, sessionContext);\r
-    }\r
-\r
-    @Override\r
-    public ISelectionProvider getSelectionProvider() {\r
-        GraphExplorer e = explorer;\r
-        if (e != null) {\r
-            IPostSelectionProvider selectionProvider = (IPostSelectionProvider)e.getAdapter(IPostSelectionProvider.class);\r
-            return selectionProvider;\r
-        }\r
-        return null;\r
-    }\r
-\r
-    @Override\r
-    public void requestFocus() {\r
-        GraphExplorer e = explorer;\r
-        if (e != null)\r
-            e.setFocus();\r
-    }\r
-\r
-    @Override\r
-    public IFilterArea getFilterArea() {\r
-        return filterArea;\r
-    }\r
-\r
-    protected ISessionContext getSessionContext() {\r
-        return sessionContext;\r
-    }\r
-\r
-    protected Session getSession() {\r
-        return sessionContext != null ? sessionContext.getSession() : null;\r
-    }\r
-\r
-    @Override\r
-    public void setInput(ISessionContext context, ISelection selection, boolean force) {\r
-        if (isDisposed())\r
-            return;\r
-        if (sessionContext == null)\r
-            return;\r
-\r
-        // Check if this is a duplicate of the previous selection to reduce unnecessary flicker.\r
-        if (!force && ObjectUtils.objectEquals(currentInput, selection))\r
-            return;\r
-\r
-        //Resource[] rs = ResourceAdaptionUtils.toResources(selection);\r
-        Object[] rs = toObjects(selection);\r
-//      System.out.println("resources: " + Arrays.toString(rs));\r
-\r
-        if (rs.length == 0) {\r
-            explorer.setRoot(GraphExplorer.EMPTY_INPUT);\r
-        } else {\r
-            if (rs.length == 1) {\r
-                explorer.setRoot(rs[0]);\r
-            } else {\r
-                explorer.setRoot(rs);\r
-            }\r
-        }\r
-\r
-        currentInput = selection;\r
-    }\r
-\r
-    protected Object[] toObjects(ISelection s) {\r
-        ResourceArray[] ras = ResourceAdaptionUtils.toResourceArrays(s);\r
-        if (ras.length > 0)\r
-            return ras;\r
-        Resource[] rs = ResourceAdaptionUtils.toResources(s);\r
-        if (rs.length > 0)\r
-            return rs;\r
-\r
-        if (!(s instanceof IStructuredSelection))\r
-            return new Object[0];\r
-        IStructuredSelection ss = (IStructuredSelection) s;\r
-        List<Object> result = new ArrayList<Object>();\r
-        for (Iterator<?> iterator = ss.iterator(); iterator.hasNext();)\r
-            result.add(iterator.next());\r
-        return result.toArray();\r
-    }\r
-\r
-    public void setSessionContext(ISessionContext sessionContext) {\r
-        if (isDisposed())\r
-            return;\r
-\r
-//        System.out.println("setSessionContext: " + sessionContext + " (" + this + ")");\r
-        if (this.sessionContext == sessionContext)\r
-            return;\r
-        this.sessionContext = sessionContext;\r
-        Session session = sessionContext != null ? sessionContext.getSession() : null;\r
-        reinitializeExplorer(explorer, sessionContext, session);\r
-    }\r
-\r
-    protected void reinitializeExplorer(GraphExplorer explorer, ISessionContext sessionContext, Session session) {\r
-        if (isDisposed())\r
-            return;\r
-\r
-        setupDragSource(sessionContext);\r
-\r
-        // TODO: synchronize the explorer somehow to make sure nothing running in its background is trying to modify the explorer during this process\r
-\r
-        EvaluatorData data = new EvaluatorDataImpl();\r
-\r
-        if (session != null) {\r
-            explorer.setDataSource(new AsyncReadGraphDataSource(session));\r
-            explorer.setDataSource(new ReadGraphDataSource(session));\r
-\r
-            Evaluator resourceEvaluator = data.newEvaluator()\r
-            .addViewpoint(new PropertyViewpointFactory(), 1.0)\r
-            .addComparator(new AlphanumericComparatorFactory(ColumnKeys.PROPERTY), 2.0)\r
-            .addComparator(new AlphanumericComparatorFactory(ColumnKeys.PROPERTY, true), 1.0)\r
-            .addLabeler(new StringRepresentationLabelerFactory(ColumnKeys.PROPERTY), 1.0);\r
-\r
-            Evaluator statementEvaluator = data.newEvaluator()\r
-            .addViewpoint(new PropertyViewpointFactory(), 1.0)\r
-            .addComparator(new AlphanumericComparatorFactory(ColumnKeys.PROPERTY), 2.0)\r
-            .addComparator(new AlphanumericComparatorFactory(ColumnKeys.PROPERTY, true), 1.0);\r
-\r
-            Evaluator relationContextEvaluator = data.newEvaluator()\r
-            .addLabeler(new RelationContextLabelerFactory(), 1.0);\r
-\r
-            Evaluator propertyEvaluator = data.newEvaluator()\r
-            .addViewpoint(new ArrayPropertyValueViewpointFactory(), 1.0)\r
-            .addLabeler(new ArrayPropertyLabelerFactory(), 1.0)\r
-            .addImager(new ArrayPropertyImagerFactory(), 1.0);\r
-\r
-            data.addEvaluator(Resource.class, resourceEvaluator);\r
-            data.addEvaluator(ResourceArray.class, resourceEvaluator);\r
-            data.addEvaluator(Statement.class, statementEvaluator);\r
-            data.addEvaluator(RelationContext.class, relationContextEvaluator);\r
-            data.addEvaluator(ResourceProperty.class, propertyEvaluator);\r
-\r
-        } else {\r
-            explorer.removeDataSource(AsyncReadGraph.class);\r
-            explorer.removeDataSource(ReadGraph.class);\r
-        }\r
-\r
-        explorer.setProcessor(new ComparableFactoryResolver(data));\r
-        explorer.setProcessor(new ViewpointFactoryResolver(data));\r
-        explorer.setProcessor(new LabelerFactoryResolver(data));\r
-        explorer.setProcessor(new ImagerFactoryResolver(data));\r
-        explorer.setProcessor(new LabelDecoratorFactoryResolver(data));\r
-        explorer.setProcessor(new ImageDecoratorFactoryResolver(data));\r
-        explorer.setPrimitiveProcessor(new TypesQueryProcessor());\r
-\r
-        explorer.setPrimitiveProcessor(userSelectedViewpointFactoryQueryProcessor);\r
-        explorer.setProcessor(new ComparableSelectorQueryProcessor());\r
-        explorer.setPrimitiveProcessor(userSelectedComparableFactoryQueryProcessor);\r
-        explorer.setPrimitiveProcessor(filterSelectionRequestQueryProcessor);\r
-\r
-        // Make sure the explorer gets reset.\r
-        explorer.setRoot(GraphExplorer.EMPTY_INPUT);\r
-    }\r
-\r
-    @Override\r
-    public void updatePartName(Consumer<String> updateCallback) {\r
-        ISelection forSelection = currentInput;\r
-        if (forSelection instanceof IStructuredSelection) {\r
-            IStructuredSelection s = (IStructuredSelection) forSelection;\r
-            int size = s.size();\r
-            if (size == 1) {\r
-                Object obj = s.getFirstElement();\r
-                if (obj != null)\r
-                    updateCallback.accept(obj.toString());\r
-                else\r
-                    updateCallback.accept("Properties");\r
-            } else {\r
-                updateCallback.accept("Properties [" + size + "]");\r
-            }\r
-        } else {\r
-            updateCallback.accept("Properties");\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.selectionview;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+import java.util.function.Consumer;
+
+import org.eclipse.jface.action.ContributionItem;
+import org.eclipse.jface.action.IContributionItem;
+import org.eclipse.jface.layout.GridDataFactory;
+import org.eclipse.jface.resource.JFaceResources;
+import org.eclipse.jface.resource.LocalResourceManager;
+import org.eclipse.jface.viewers.IPostSelectionProvider;
+import org.eclipse.jface.viewers.ISelection;
+import org.eclipse.jface.viewers.ISelectionProvider;
+import org.eclipse.jface.viewers.IStructuredSelection;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.dnd.DND;
+import org.eclipse.swt.dnd.DragSource;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.Event;
+import org.eclipse.swt.widgets.Listener;
+import org.eclipse.swt.widgets.ToolBar;
+import org.eclipse.swt.widgets.ToolItem;
+import org.eclipse.swt.widgets.Tree;
+import org.eclipse.ui.IActionBars;
+import org.eclipse.ui.IWorkbenchSite;
+import org.simantics.browsing.ui.GraphExplorer;
+import org.simantics.browsing.ui.common.ColumnKeys;
+import org.simantics.browsing.ui.common.EvaluatorData;
+import org.simantics.browsing.ui.common.EvaluatorData.Evaluator;
+import org.simantics.browsing.ui.common.EvaluatorDataImpl;
+import org.simantics.browsing.ui.common.comparators.AlphanumericComparatorFactory;
+import org.simantics.browsing.ui.common.processors.ComparableFactoryResolver;
+import org.simantics.browsing.ui.common.processors.ComparableSelectorQueryProcessor;
+import org.simantics.browsing.ui.common.processors.FilterSelectionRequestQueryProcessor;
+import org.simantics.browsing.ui.common.processors.ImageDecoratorFactoryResolver;
+import org.simantics.browsing.ui.common.processors.ImagerFactoryResolver;
+import org.simantics.browsing.ui.common.processors.LabelDecoratorFactoryResolver;
+import org.simantics.browsing.ui.common.processors.LabelerFactoryResolver;
+import org.simantics.browsing.ui.common.processors.UserSelectedComparableFactoryQueryProcessor;
+import org.simantics.browsing.ui.common.processors.UserSelectedViewpointFactoryQueryProcessor;
+import org.simantics.browsing.ui.common.processors.ViewpointFactoryResolver;
+import org.simantics.browsing.ui.common.views.IFilterArea;
+import org.simantics.browsing.ui.common.views.IFilterAreaProvider;
+import org.simantics.browsing.ui.common.views.PropertyTableConstants;
+import org.simantics.browsing.ui.graph.impl.ArrayPropertyLabelerFactory;
+import org.simantics.browsing.ui.graph.impl.ArrayPropertyValueViewpointFactory;
+import org.simantics.browsing.ui.graph.impl.AsyncReadGraphDataSource;
+import org.simantics.browsing.ui.graph.impl.PropertyViewpointFactory;
+import org.simantics.browsing.ui.graph.impl.ReadGraphDataSource;
+import org.simantics.browsing.ui.graph.impl.RelationContextLabelerFactory;
+import org.simantics.browsing.ui.graph.impl.ResourceProperty;
+import org.simantics.browsing.ui.graph.impl.StringRepresentationLabelerFactory;
+import org.simantics.browsing.ui.swt.ArrayPropertyImagerFactory;
+import org.simantics.browsing.ui.swt.ComparatorSelector;
+import org.simantics.browsing.ui.swt.ContextMenuInitializer;
+import org.simantics.browsing.ui.swt.GraphExplorerFactory;
+import org.simantics.browsing.ui.swt.PropertyTableUtil;
+import org.simantics.browsing.ui.swt.RootFilterArea;
+import org.simantics.browsing.ui.swt.TypesQueryProcessor;
+import org.simantics.browsing.ui.swt.ViewpointSelector;
+import org.simantics.db.AsyncReadGraph;
+import org.simantics.db.ReadGraph;
+import org.simantics.db.RelationContext;
+import org.simantics.db.Resource;
+import org.simantics.db.Session;
+import org.simantics.db.Statement;
+import org.simantics.db.common.ResourceArray;
+import org.simantics.db.management.ISessionContext;
+import org.simantics.ui.dnd.BasicDragSource;
+import org.simantics.ui.dnd.SessionContainer;
+import org.simantics.ui.utils.ResourceAdaptionUtils;
+import org.simantics.utils.ObjectUtils;
+import org.simantics.utils.ui.LayoutUtils;
+
+
+/**
+ * <p>
+ * Subclasses may extend or reimplement the following methods as required:
+ * <ul>
+ *   <li><code>createExplorerControl</code> - reimplement to customize the way the IGraphExplorer control is created</li>
+ *   <li><code>createControl</code> - reimplement to customize the way other supplementary controls get created</li>
+ *   <li><code>createDragSource</code> - reimplement to customize the kind of DragSource this control provides</li>
+ * </ul>
+ * </p>
+ * 
+ * @author Tuukka Lehtonen
+ */
+public class PropertyTable extends Composite implements IFilterAreaProvider, IPropertyTab2 {
+
+    protected IWorkbenchSite                              site;
+    protected GraphExplorer                               explorer;
+    protected Object                                      dragSource;
+    protected ISessionContext                             sessionContext;
+    protected ISelection                                  currentInput;
+
+    protected UserSelectedComparableFactoryQueryProcessor userSelectedComparableFactoryQueryProcessor;
+    protected UserSelectedViewpointFactoryQueryProcessor  userSelectedViewpointFactoryQueryProcessor;
+    protected FilterSelectionRequestQueryProcessor        filterSelectionRequestQueryProcessor;
+
+    protected LocalResourceManager resourceManager;
+
+    private RootFilterArea filterArea;
+    private IContributionItem filterAreaContribution;
+    private IActionBars actionBars;
+
+    public PropertyTable(IWorkbenchSite site, Composite parent, int style) {
+        super(parent, style);
+        this.site = site;
+        //System.out.println("created " + this + " " + System.identityHashCode(this));
+        resourceManager = new LocalResourceManager(JFaceResources.getResources(parent.getDisplay()));
+
+        addListener(SWT.Dispose, new Listener() {
+            @Override
+            public void handleEvent(Event event) {
+                //System.out.println("DISPOSING " + this + " " + System.identityHashCode(PropertyTable.this));
+                tableDisposed();
+
+                PropertyTableUtil.setupDragSource(dragSource, null);
+
+                PropertyTable.this.site = null;
+                explorer = null;
+                dragSource = null;
+                sessionContext = null;
+                currentInput = null;
+
+                userSelectedComparableFactoryQueryProcessor = null;
+                userSelectedViewpointFactoryQueryProcessor = null;
+                filterSelectionRequestQueryProcessor = null;
+
+                resourceManager.dispose();
+            }
+        });
+    }
+
+    /**
+     * Override to perform actions when this property table is disposed.
+     * Remember to call super.
+     */
+    protected void tableDisposed() {
+        getDisplay().asyncExec(new Runnable() {
+            @Override
+            public void run() {
+                if (filterAreaContribution != null) {
+                    actionBars.getToolBarManager().remove(filterAreaContribution);
+                    filterAreaContribution.dispose();
+                    filterAreaContribution = null;
+                    actionBars.updateActionBars();
+                }
+            }
+        });
+    }
+
+    @Override
+    public Control getControl() {
+        return this;
+    }
+
+    @Override
+    public void createControl(final Composite parent, ISessionContext context) {
+        explorer = createExplorerControl(parent);
+        dragSource = createDragSource(explorer);
+
+        Control control = explorer.getControl();
+
+        userSelectedComparableFactoryQueryProcessor = new UserSelectedComparableFactoryQueryProcessor();
+        userSelectedViewpointFactoryQueryProcessor = new UserSelectedViewpointFactoryQueryProcessor();
+        filterSelectionRequestQueryProcessor = new FilterSelectionRequestQueryProcessor();
+
+        parent.setLayout(LayoutUtils.createNoBorderGridLayout(2, false));
+        GridDataFactory.fillDefaults().grab(true, true).span(2,1).applyTo(control);
+
+        addControls(parent);
+        setSessionContext(context);
+    }
+
+    protected void addControls(Composite parent) {
+        //createSelectors(parent);
+        //createFilterArea(parent);
+    }
+
+    protected void createSelectors(Composite parent) {
+        Control control = explorer.getControl();
+        ComparatorSelector comparatorSelector = new ComparatorSelector(explorer, userSelectedComparableFactoryQueryProcessor, parent, SWT.READ_ONLY);
+        comparatorSelector.moveAbove(control);
+        ViewpointSelector viewpointSelector = new ViewpointSelector(explorer, userSelectedViewpointFactoryQueryProcessor, parent, SWT.READ_ONLY);
+        viewpointSelector.moveAbove(control);
+    }
+
+    protected void createFilterArea(IActionBars actionBars) {
+        this.filterAreaContribution = new ContributionItem("filterArea") {
+            ToolItem item;
+            @Override
+            public boolean isDynamic() {
+                return true;
+            }
+            @Override
+            public final void fill(ToolBar parent, int index) {
+                Control control = createControl(parent);
+                item = new ToolItem(parent, SWT.SEPARATOR, index);
+                item.setControl(control);
+                item.setWidth(computeWidth(control));
+            }
+            protected Control createControl(Composite parent) {
+                filterArea = new RootFilterArea(explorer, filterSelectionRequestQueryProcessor, parent, SWT.NONE);
+                return filterArea;
+            }
+            protected int computeWidth(Control control) {
+                // FIXME: better size control?
+                return control.computeSize(150, SWT.DEFAULT, true).x;
+            }
+            @Override
+            public void dispose() {
+                if (filterArea != null) {
+                    filterArea.dispose();
+                    filterArea = null;
+                }
+                if (item != null) {
+                    item.dispose();
+                    item = null;
+                }
+            }
+        };
+        this.actionBars = actionBars;
+        actionBars.getToolBarManager().add(filterAreaContribution);
+    }
+
+    protected void createFilterArea(Composite parent) {
+        Control control = explorer.getControl();
+        filterArea = new RootFilterArea(explorer, filterSelectionRequestQueryProcessor, parent, SWT.NONE);
+        filterArea.moveAbove(control);
+    }
+
+    protected GraphExplorer createExplorerControl(Composite parent) {
+        GraphExplorer e = GraphExplorerFactory.getInstance().create(parent, SWT.FULL_SELECTION);
+        Control c = e.getControl();
+        ISelectionProvider selectionProvider = (ISelectionProvider)e.getAdapter(ISelectionProvider.class);
+        new ContextMenuInitializer("#PropertiesPopup").createContextMenu(c, selectionProvider, site);
+        if (c instanceof Tree)
+            ((Tree) c).setLinesVisible(true);
+        e.setColumns(PropertyTableConstants.NORMAL_COLUMNS);
+        return e;
+    }
+
+    /**
+     * Override to customize drag source initialization. This default
+     * implementation creates a {@link BasicDragSource}. The drag source is
+     * initialized when the active database session is set.
+     * 
+     * @param explorer
+     * @return the object representing the drag source. If the object implements
+     *         {@link SessionContainer}, its
+     *         {@link SessionContainer#setSession(Session)} will be invoked
+     *         every time the active database session changes.
+     */
+    protected Object createDragSource(GraphExplorer explorer) {
+        Control c = explorer.getControl();
+        DragSource existingSource = (DragSource) c.getData(DND.DRAG_SOURCE_KEY);
+        if (existingSource != null)
+            return existingSource;
+        return PropertyTableUtil.createResourceDragSource(explorer);
+    }
+
+    protected void setupDragSource(ISessionContext sessionContext) {
+        PropertyTableUtil.setupDragSource(dragSource, sessionContext);
+    }
+
+    @Override
+    public ISelectionProvider getSelectionProvider() {
+        GraphExplorer e = explorer;
+        if (e != null) {
+            IPostSelectionProvider selectionProvider = (IPostSelectionProvider)e.getAdapter(IPostSelectionProvider.class);
+            return selectionProvider;
+        }
+        return null;
+    }
+
+    @Override
+    public void requestFocus() {
+        GraphExplorer e = explorer;
+        if (e != null)
+            e.setFocus();
+    }
+
+    @Override
+    public IFilterArea getFilterArea() {
+        return filterArea;
+    }
+
+    protected ISessionContext getSessionContext() {
+        return sessionContext;
+    }
+
+    protected Session getSession() {
+        return sessionContext != null ? sessionContext.getSession() : null;
+    }
+
+    @Override
+    public void setInput(ISessionContext context, ISelection selection, boolean force) {
+        if (isDisposed())
+            return;
+        if (sessionContext == null)
+            return;
+
+        // Check if this is a duplicate of the previous selection to reduce unnecessary flicker.
+        if (!force && ObjectUtils.objectEquals(currentInput, selection))
+            return;
+
+        //Resource[] rs = ResourceAdaptionUtils.toResources(selection);
+        Object[] rs = toObjects(selection);
+//      System.out.println("resources: " + Arrays.toString(rs));
+
+        if (rs.length == 0) {
+            explorer.setRoot(GraphExplorer.EMPTY_INPUT);
+        } else {
+            if (rs.length == 1) {
+                explorer.setRoot(rs[0]);
+            } else {
+                explorer.setRoot(rs);
+            }
+        }
+
+        currentInput = selection;
+    }
+
+    protected Object[] toObjects(ISelection s) {
+        ResourceArray[] ras = ResourceAdaptionUtils.toResourceArrays(s);
+        if (ras.length > 0)
+            return ras;
+        Resource[] rs = ResourceAdaptionUtils.toResources(s);
+        if (rs.length > 0)
+            return rs;
+
+        if (!(s instanceof IStructuredSelection))
+            return new Object[0];
+        IStructuredSelection ss = (IStructuredSelection) s;
+        List<Object> result = new ArrayList<Object>();
+        for (Iterator<?> iterator = ss.iterator(); iterator.hasNext();)
+            result.add(iterator.next());
+        return result.toArray();
+    }
+
+    public void setSessionContext(ISessionContext sessionContext) {
+        if (isDisposed())
+            return;
+
+//        System.out.println("setSessionContext: " + sessionContext + " (" + this + ")");
+        if (this.sessionContext == sessionContext)
+            return;
+        this.sessionContext = sessionContext;
+        Session session = sessionContext != null ? sessionContext.getSession() : null;
+        reinitializeExplorer(explorer, sessionContext, session);
+    }
+
+    protected void reinitializeExplorer(GraphExplorer explorer, ISessionContext sessionContext, Session session) {
+        if (isDisposed())
+            return;
+
+        setupDragSource(sessionContext);
+
+        // TODO: synchronize the explorer somehow to make sure nothing running in its background is trying to modify the explorer during this process
+
+        EvaluatorData data = new EvaluatorDataImpl();
+
+        if (session != null) {
+            explorer.setDataSource(new AsyncReadGraphDataSource(session));
+            explorer.setDataSource(new ReadGraphDataSource(session));
+
+            Evaluator resourceEvaluator = data.newEvaluator()
+            .addViewpoint(new PropertyViewpointFactory(), 1.0)
+            .addComparator(new AlphanumericComparatorFactory(ColumnKeys.PROPERTY), 2.0)
+            .addComparator(new AlphanumericComparatorFactory(ColumnKeys.PROPERTY, true), 1.0)
+            .addLabeler(new StringRepresentationLabelerFactory(ColumnKeys.PROPERTY), 1.0);
+
+            Evaluator statementEvaluator = data.newEvaluator()
+            .addViewpoint(new PropertyViewpointFactory(), 1.0)
+            .addComparator(new AlphanumericComparatorFactory(ColumnKeys.PROPERTY), 2.0)
+            .addComparator(new AlphanumericComparatorFactory(ColumnKeys.PROPERTY, true), 1.0);
+
+            Evaluator relationContextEvaluator = data.newEvaluator()
+            .addLabeler(new RelationContextLabelerFactory(), 1.0);
+
+            Evaluator propertyEvaluator = data.newEvaluator()
+            .addViewpoint(new ArrayPropertyValueViewpointFactory(), 1.0)
+            .addLabeler(new ArrayPropertyLabelerFactory(), 1.0)
+            .addImager(new ArrayPropertyImagerFactory(), 1.0);
+
+            data.addEvaluator(Resource.class, resourceEvaluator);
+            data.addEvaluator(ResourceArray.class, resourceEvaluator);
+            data.addEvaluator(Statement.class, statementEvaluator);
+            data.addEvaluator(RelationContext.class, relationContextEvaluator);
+            data.addEvaluator(ResourceProperty.class, propertyEvaluator);
+
+        } else {
+            explorer.removeDataSource(AsyncReadGraph.class);
+            explorer.removeDataSource(ReadGraph.class);
+        }
+
+        explorer.setProcessor(new ComparableFactoryResolver(data));
+        explorer.setProcessor(new ViewpointFactoryResolver(data));
+        explorer.setProcessor(new LabelerFactoryResolver(data));
+        explorer.setProcessor(new ImagerFactoryResolver(data));
+        explorer.setProcessor(new LabelDecoratorFactoryResolver(data));
+        explorer.setProcessor(new ImageDecoratorFactoryResolver(data));
+        explorer.setPrimitiveProcessor(new TypesQueryProcessor());
+
+        explorer.setPrimitiveProcessor(userSelectedViewpointFactoryQueryProcessor);
+        explorer.setProcessor(new ComparableSelectorQueryProcessor());
+        explorer.setPrimitiveProcessor(userSelectedComparableFactoryQueryProcessor);
+        explorer.setPrimitiveProcessor(filterSelectionRequestQueryProcessor);
+
+        // Make sure the explorer gets reset.
+        explorer.setRoot(GraphExplorer.EMPTY_INPUT);
+    }
+
+    @Override
+    public void updatePartName(Consumer<String> updateCallback) {
+        ISelection forSelection = currentInput;
+        if (forSelection instanceof IStructuredSelection) {
+            IStructuredSelection s = (IStructuredSelection) forSelection;
+            int size = s.size();
+            if (size == 1) {
+                Object obj = s.getFirstElement();
+                if (obj != null)
+                    updateCallback.accept(obj.toString());
+                else
+                    updateCallback.accept("Properties");
+            } else {
+                updateCallback.accept("Properties [" + size + "]");
+            }
+        } else {
+            updateCallback.accept("Properties");
+        }
+    }
+
+}