-/*******************************************************************************\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.symbollibrary.ui;\r
-\r
-import java.awt.datatransfer.Transferable;\r
-import java.awt.dnd.DnDConstants;\r
-import java.awt.dnd.DragGestureEvent;\r
-import java.awt.dnd.DragSourceDragEvent;\r
-import java.awt.dnd.DragSourceDropEvent;\r
-import java.awt.dnd.DragSourceEvent;\r
-import java.lang.ref.SoftReference;\r
-import java.util.ArrayList;\r
-import java.util.Collection;\r
-import java.util.Collections;\r
-import java.util.Comparator;\r
-import java.util.EnumSet;\r
-import java.util.HashMap;\r
-import java.util.Iterator;\r
-import java.util.List;\r
-import java.util.Map;\r
-import java.util.Set;\r
-import java.util.TreeSet;\r
-import java.util.WeakHashMap;\r
-import java.util.concurrent.ExecutorService;\r
-import java.util.concurrent.Executors;\r
-import java.util.concurrent.Semaphore;\r
-import java.util.concurrent.ThreadFactory;\r
-import java.util.concurrent.TimeUnit;\r
-import java.util.concurrent.atomic.AtomicInteger;\r
-import java.util.regex.Matcher;\r
-import java.util.regex.Pattern;\r
-\r
-import org.eclipse.core.runtime.preferences.IEclipsePreferences;\r
-import org.eclipse.core.runtime.preferences.InstanceScope;\r
-import org.eclipse.jface.action.Action;\r
-import org.eclipse.jface.action.IToolBarManager;\r
-import org.eclipse.jface.layout.GridDataFactory;\r
-import org.eclipse.jface.layout.GridLayoutFactory;\r
-import org.eclipse.jface.resource.FontDescriptor;\r
-import org.eclipse.jface.resource.JFaceResources;\r
-import org.eclipse.jface.resource.LocalResourceManager;\r
-import org.eclipse.jface.viewers.AcceptAllFilter;\r
-import org.eclipse.jface.viewers.BaseLabelProvider;\r
-import org.eclipse.jface.viewers.IFilter;\r
-import org.eclipse.jface.viewers.ISelection;\r
-import org.eclipse.jface.viewers.IStructuredContentProvider;\r
-import org.eclipse.jface.viewers.StructuredSelection;\r
-import org.eclipse.jface.viewers.Viewer;\r
-import org.eclipse.jface.viewers.ViewerFilter;\r
-import org.eclipse.jface.window.Window;\r
-import org.eclipse.nebula.widgets.pgroup.PGroup;\r
-import org.eclipse.swt.SWT;\r
-import org.eclipse.swt.custom.ScrolledComposite;\r
-import org.eclipse.swt.events.ControlAdapter;\r
-import org.eclipse.swt.events.ControlEvent;\r
-import org.eclipse.swt.events.DisposeEvent;\r
-import org.eclipse.swt.events.DisposeListener;\r
-import org.eclipse.swt.events.ExpandEvent;\r
-import org.eclipse.swt.events.ExpandListener;\r
-import org.eclipse.swt.events.ModifyEvent;\r
-import org.eclipse.swt.events.ModifyListener;\r
-import org.eclipse.swt.graphics.Color;\r
-import org.eclipse.swt.graphics.Point;\r
-import org.eclipse.swt.graphics.Rectangle;\r
-import org.eclipse.swt.layout.GridData;\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.Widget;\r
-import org.eclipse.ui.IMemento;\r
-import org.eclipse.ui.contexts.IContextService;\r
-import org.eclipse.ui.part.ViewPart;\r
-import org.osgi.service.prefs.BackingStoreException;\r
-import org.simantics.db.management.ISessionContextChangedListener;\r
-import org.simantics.db.management.ISessionContextProvider;\r
-import org.simantics.db.management.SessionContextChangedEvent;\r
-import org.simantics.diagram.internal.Activator;\r
-import org.simantics.diagram.symbollibrary.IModifiableSymbolGroup;\r
-import org.simantics.diagram.symbollibrary.ISymbolGroup;\r
-import org.simantics.diagram.symbollibrary.ISymbolGroupListener;\r
-import org.simantics.diagram.symbollibrary.ISymbolItem;\r
-import org.simantics.diagram.symbollibrary.ISymbolManager;\r
-import org.simantics.diagram.symbollibrary.ui.FilterConfiguration.Mode;\r
-import org.simantics.diagram.synchronization.ErrorHandler;\r
-import org.simantics.diagram.synchronization.LogErrorHandler;\r
-import org.simantics.diagram.synchronization.SynchronizationHints;\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.chassis.AWTChassis;\r
-import org.simantics.g2d.diagram.DiagramUtils;\r
-import org.simantics.g2d.diagram.handler.PickContext;\r
-import org.simantics.g2d.diagram.handler.PickRequest;\r
-import org.simantics.g2d.diagram.handler.layout.FlowLayout;\r
-import org.simantics.g2d.diagram.participant.AbstractDiagramParticipant;\r
-import org.simantics.g2d.diagram.participant.Selection;\r
-import org.simantics.g2d.diagram.participant.pointertool.PointerInteractor;\r
-import org.simantics.g2d.dnd.IDragSourceParticipant;\r
-import org.simantics.g2d.element.ElementClass;\r
-import org.simantics.g2d.element.ElementHints;\r
-import org.simantics.g2d.element.IElement;\r
-import org.simantics.g2d.element.handler.StaticSymbol;\r
-import org.simantics.g2d.gallery.GalleryViewer;\r
-import org.simantics.g2d.gallery.ILabelProvider;\r
-import org.simantics.g2d.image.DefaultImages;\r
-import org.simantics.g2d.image.Image;\r
-import org.simantics.g2d.image.Image.Feature;\r
-import org.simantics.g2d.image.impl.ImageProxy;\r
-import org.simantics.g2d.participant.TransformUtil;\r
-import org.simantics.project.IProject;\r
-import org.simantics.project.ProjectKeys;\r
-import org.simantics.scenegraph.INode;\r
-import org.simantics.scenegraph.g2d.events.EventTypes;\r
-import org.simantics.scenegraph.g2d.events.IEventHandler;\r
-import org.simantics.scenegraph.g2d.events.MouseEvent;\r
-import org.simantics.scenegraph.g2d.events.MouseEvent.MouseDoubleClickedEvent;\r
-import org.simantics.scenegraph.g2d.events.MouseEvent.MouseDragBegin;\r
-import org.simantics.ui.SimanticsUI;\r
-import org.simantics.ui.dnd.LocalObjectTransfer;\r
-import org.simantics.ui.dnd.LocalObjectTransferable;\r
-import org.simantics.utils.datastructures.cache.ProvisionException;\r
-import org.simantics.utils.datastructures.hints.HintListenerAdapter;\r
-import org.simantics.utils.datastructures.hints.HintTracker;\r
-import org.simantics.utils.datastructures.hints.IHintContext.Key;\r
-import org.simantics.utils.datastructures.hints.IHintListener;\r
-import org.simantics.utils.datastructures.hints.IHintObservable;\r
-import org.simantics.utils.threads.IThreadWorkQueue;\r
-import org.simantics.utils.threads.SWTThread;\r
-import org.simantics.utils.threads.ThreadUtils;\r
-import org.simantics.utils.ui.BundleUtils;\r
-import org.simantics.utils.ui.ExceptionUtils;\r
-import org.simantics.utils.ui.workbench.StringMemento;\r
-\r
-/**\r
- * @author Tuukka Lehtonen\r
- */\r
-public class SymbolLibraryView extends ViewPart {\r
-\r
- private static final String SYMBOL_LIBRARY_CONTEXT = "org.simantics.diagram.symbolLibrary";\r
- private static final String PREF_FILTERS = "filters";\r
- private static final String TAG_FILTER_MODE = "filterMode";\r
- private static final String TAG_FILTER = "filter";\r
-\r
- private static final String ATTR_ACTIVE = "active";\r
- private static final String ATTR_FILTER_TEXT = "filterText";\r
- private static final String ATTR_NAME = "name";\r
-\r
- private static final int FILTER_DELAY = 500;\r
-\r
- private static final String KEY_VIEWER_INITIALIZED = "viewer.initialized";\r
- private static final String KEY_USER_EXPANDED = "userExpanded";\r
- private static final String KEY_GROUP_FILTERED = "groupFiltered";\r
-\r
- /** Root composite */\r
- ScrolledComposite sc;\r
- Composite c;\r
- ISessionContextProvider sessionCtxProvider;\r
- IThreadWorkQueue swtThread;\r
- boolean defaultExpanded = false;\r
-\r
- /**\r
- * This value is incremented each time a load method is called and symbol\r
- * group population is started. It can be used by\r
- * {@link #populateGroups(ExecutorService, Control, Iterator, IFilter)} to\r
- * tell whether it should stop its population job because a later load\r
- * will override its results anyway.\r
- */\r
- AtomicInteger loadCount = new AtomicInteger();\r
-\r
- Map<ISymbolGroup, PGroup> groups = new HashMap<ISymbolGroup, PGroup>();\r
- Map<ISymbolGroup, GalleryViewer> groupViewers = new HashMap<ISymbolGroup, GalleryViewer>();\r
- LocalResourceManager resourceManager;\r
- FilterArea filter;\r
-\r
- ThreadFactory threadFactory = new ThreadFactory() {\r
- @Override\r
- public Thread newThread(Runnable r) {\r
- Thread t = new Thread(r, "Symbol Library Loader");\r
- t.setDaemon(false);\r
- t.setPriority(Thread.NORM_PRIORITY);\r
- return t;\r
- }\r
- };\r
-\r
- Semaphore loaderSemaphore = new Semaphore(1);\r
- ExecutorService loaderExecutor = Executors.newCachedThreadPool(threadFactory);\r
-\r
- /**\r
- * Used to prevent annoying reloading of symbols when groups are closed and\r
- * reopened by not always having to schedule an {@link ImageLoader} in\r
- * {@link LabelProvider#getImage(Object)}.\r
- */\r
- Map<ISymbolItem, SoftReference<ImageProxy>> imageCache = new WeakHashMap<ISymbolItem, SoftReference<ImageProxy>>();\r
-\r
- static final Pattern ANY = Pattern.compile(".*");\r
- Pattern currentFilterPattern = ANY;\r
-\r
- FilterConfiguration config = new FilterConfiguration();\r
- IFilter currentGroupFilter = AcceptAllFilter.getInstance();\r
-\r
- ErrorHandler errorHandler = LogErrorHandler.INSTANCE;\r
-\r
- static class GroupDescriptor {\r
- public final ISymbolGroup lib;\r
- public final String label;\r
- public final PGroup group;\r
-\r
- public GroupDescriptor(ISymbolGroup lib, String label, PGroup group) {\r
- assert(lib != null);\r
- assert(label != null);\r
- this.lib = lib;\r
- this.label = label;\r
- this.group = group;\r
- }\r
- }\r
-\r
- Comparator<GroupDescriptor> groupComparator = new Comparator<GroupDescriptor>() {\r
- @Override\r
- public int compare(GroupDescriptor o1, GroupDescriptor o2) {\r
- return o1.label.compareToIgnoreCase(o2.label);\r
- }\r
- };\r
-\r
- static final EnumSet<Feature> VOLATILE = EnumSet.of(Feature.Volatile);\r
-\r
- static class PendingImage extends ImageProxy {\r
- EnumSet<Feature> features;\r
- PendingImage(Image source, EnumSet<Feature> features) {\r
- super(source);\r
- this.features = features;\r
- }\r
- @Override\r
- public EnumSet<Feature> getFeatures() {\r
- return features;\r
- }\r
- }\r
-\r
- class LabelProvider extends BaseLabelProvider implements ILabelProvider {\r
- @Override\r
- public Image getImage(final Object element) {\r
- ISymbolItem item = (ISymbolItem) element;\r
- // Use a volatile ImageProxy to make the image loading asynchronous.\r
- ImageProxy proxy = null;\r
- SoftReference<ImageProxy> proxyRef = imageCache.get(item);\r
- if (proxyRef != null)\r
- proxy = proxyRef.get();\r
- if (proxy == null) {\r
- proxy = new PendingImage(DefaultImages.HOURGLASS.get(), VOLATILE);\r
- imageCache.put(item, new SoftReference<ImageProxy>(proxy));\r
- ThreadUtils.getNonBlockingWorkExecutor().schedule(new ImageLoader(proxy, item), 100, TimeUnit.MILLISECONDS);\r
- }\r
- return proxy;\r
- }\r
- @Override\r
- public String getText(final Object element) {\r
- return ((ISymbolItem) element).getName();\r
- }\r
- @Override\r
- public String getToolTipText(Object element) {\r
- ISymbolItem item = (ISymbolItem) element;\r
- String name = item.getName();\r
- String desc = item.getDescription();\r
- return name.equals(desc) ? name : name + " - " + desc;\r
- }\r
-\r
- @Override\r
- public java.awt.Image getToolTipImage(Object object) {\r
- return null;\r
- }\r
- @Override\r
- public Color getToolTipBackgroundColor(Object object) {\r
- return null;\r
- }\r
-\r
- @Override\r
- public Color getToolTipForegroundColor(Object object) {\r
- return null;\r
- }\r
- }\r
-\r
- public class ProjectTracker extends HintTracker {\r
- public ProjectTracker() {\r
- IHintListener symbolGroupListener = new HintListenerAdapter() {\r
- @Override\r
- public void hintChanged(IHintObservable sender, Key key, Object oldValue, Object newValue) {\r
- @SuppressWarnings("unchecked")\r
- Collection<ISymbolGroup> groups = (Collection<ISymbolGroup>) newValue;\r
- load(groups);\r
- }\r
- };\r
- addKeyHintListener(ISymbolManager.KEY_SYMBOL_GROUPS, symbolGroupListener);\r
- }\r
- }\r
- ProjectTracker projectTracker= new ProjectTracker();\r
-\r
- public class SessionContextTracker extends HintTracker implements ISessionContextChangedListener {\r
- public SessionContextTracker() {\r
- IHintListener activeProjectListener = new HintListenerAdapter() {\r
- @Override\r
- public void hintChanged(IHintObservable sender, Key key, Object oldValue, Object newValue) {\r
- projectTracker.track((IProject) newValue);\r
- }\r
- };\r
- addKeyHintListener(ProjectKeys.KEY_PROJECT, activeProjectListener);\r
- }\r
- @Override\r
- public void sessionContextChanged(SessionContextChangedEvent event) {\r
- track(event.getNewValue());\r
- }\r
- }\r
- SessionContextTracker sessionContextTracker = new SessionContextTracker();\r
-\r
- void attachToSession() {\r
- // Track active ISessionContext changes\r
- sessionCtxProvider = SimanticsUI.getSessionContextProvider(getViewSite().getWorkbenchWindow());\r
- sessionCtxProvider.addContextChangedListener(sessionContextTracker);\r
-\r
- // Start tracking the current session context for input changes.\r
- // This will/must cause applySessionContext to get called.\r
- // Doing the applySessionContext initialization this way\r
- // instead of directly calling it will also make sure that\r
- // applySessionContext is only called once when first initialized,\r
- // and not twice like with the direct invocation.\r
- sessionContextTracker.track(sessionCtxProvider.getSessionContext());\r
- }\r
-\r
- public void readPreferences() {\r
- FilterConfiguration config = new FilterConfiguration();\r
-\r
- IEclipsePreferences prefs = InstanceScope.INSTANCE.getNode(Activator.PLUGIN_ID);\r
- String filters = prefs.get(PREF_FILTERS, null);\r
-\r
- if (filters != null) {\r
- IMemento memento = new StringMemento(filters);\r
- for (IMemento child : memento.getChildren(TAG_FILTER)) {\r
- String name = child.getString(ATTR_NAME);\r
- String filterText = child.getString(ATTR_FILTER_TEXT);\r
- boolean active = Boolean.TRUE.equals(child.getBoolean(ATTR_ACTIVE));\r
-\r
- if (name != null && !name.trim().isEmpty() && filterText != null && !filterText.isEmpty()) {\r
- config.getFilters().add(new GroupFilter(name, filterText, active));\r
- }\r
- }\r
- Collections.sort(config.getFilters());\r
-\r
- String filterMode = memento.getString(TAG_FILTER_MODE);\r
- if (filterMode != null) {\r
- try {\r
- Mode mode = Mode.valueOf(filterMode);\r
- config.setMode(mode);\r
- } catch (IllegalArgumentException e) {\r
- }\r
- }\r
- }\r
-\r
- updateFilterConfiguration(config);\r
- }\r
-\r
- void savePreferences() throws BackingStoreException {\r
- IEclipsePreferences prefs = InstanceScope.INSTANCE.getNode(Activator.PLUGIN_ID);\r
-\r
- IMemento memento = new StringMemento();\r
- for (GroupFilter f : config.getFilters()) {\r
- IMemento child = memento.createChild(TAG_FILTER);\r
- child.putString(ATTR_NAME, f.getName());\r
- child.putString(ATTR_FILTER_TEXT, f.getFilterText());\r
- child.putBoolean(ATTR_ACTIVE, f.isActive());\r
- }\r
- memento.putString(TAG_FILTER_MODE, config.getMode().toString());\r
-\r
- prefs.put(PREF_FILTERS, memento.toString());\r
-\r
- prefs.flush();\r
- }\r
-\r
- @Override\r
- public void createPartControl(final Composite parent) {\r
- // Prime the image, make it available.\r
- DefaultImages.HOURGLASS.get();\r
-\r
- readPreferences();\r
-\r
- this.resourceManager = new LocalResourceManager(JFaceResources.getResources(parent.getDisplay()), parent);\r
- swtThread = SWTThread.getThreadAccess(parent);\r
-\r
- GridLayoutFactory.fillDefaults().spacing(0, 0).applyTo(parent);\r
-\r
- filter = new FilterArea(parent, SWT.NONE);\r
- GridDataFactory.fillDefaults().grab(true, false).applyTo(filter);\r
- filter.getText().addModifyListener(new ModifyListener() {\r
- int modCount = 0;\r
- //long lastModificationTime = -1000;\r
- @Override\r
- public void modifyText(ModifyEvent e) {\r
- scheduleDelayedFilter(FILTER_DELAY, TimeUnit.MILLISECONDS);\r
- }\r
- private void scheduleDelayedFilter(long filterDelay, TimeUnit delayUnit) {\r
- final String text = filter.getText().getText();\r
-\r
- //long time = System.currentTimeMillis();\r
- //long delta = time - lastModificationTime;\r
- //lastModificationTime = time;\r
-\r
- final int count = ++modCount;\r
- ThreadUtils.getNonBlockingWorkExecutor().schedule(new Runnable() {\r
- @Override\r
- public void run() {\r
- int newCount = modCount;\r
- if (newCount != count)\r
- return;\r
-\r
- ThreadUtils.asyncExec(swtThread, new Runnable() {\r
- @Override\r
- public void run() {\r
- if (sc.isDisposed())\r
- return;\r
- if (!filterGroups(text)) {\r
- scheduleDelayedFilter(100, TimeUnit.MILLISECONDS);\r
- }\r
- }\r
- });\r
- }\r
- }, filterDelay, delayUnit);\r
- }\r
- });\r
-\r
- sc = new ScrolledComposite(parent, SWT.V_SCROLL);\r
- GridDataFactory.fillDefaults().grab(true, true).applyTo(sc);\r
- sc.setAlwaysShowScrollBars(false);\r
- sc.setExpandHorizontal(false);\r
- sc.setExpandVertical(false);\r
- sc.getVerticalBar().setIncrement(30);\r
- sc.getVerticalBar().setPageIncrement(200);\r
- sc.addControlListener( new ControlAdapter() {\r
- @Override\r
- public void controlResized(ControlEvent e) {\r
- //System.out.println("ScrolledComposite resized: " + sc.getSize());\r
- refreshScrolledComposite();\r
- }\r
- });\r
-\r
- c = new Composite(sc, 0);\r
- c.setVisible(false);\r
- GridLayoutFactory.fillDefaults().spacing(0, 0).applyTo(c);\r
-\r
- sc.setContent(c);\r
-\r
- c.addDisposeListener(new DisposeListener() {\r
- @Override\r
- public void widgetDisposed(DisposeEvent e) {\r
- // These should be in exactly this order to prevent them from\r
- // screwing each other up.\r
- sessionContextTracker.untrack();\r
- projectTracker.untrack();\r
-\r
- // Remember to shutdown the executor\r
- loaderExecutor.shutdown();\r
- }});\r
-\r
- contributeActions();\r
- attachToSession();\r
-\r
- IContextService cs = (IContextService) getSite().getService(IContextService.class);\r
- cs.activateContext(SYMBOL_LIBRARY_CONTEXT);\r
- }\r
-\r
- @Override\r
- public void dispose() {\r
- if (sessionCtxProvider != null) {\r
- sessionCtxProvider.removeContextChangedListener(sessionContextTracker);\r
- sessionCtxProvider = null;\r
- }\r
- }\r
-\r
- void refreshScrolledComposite() {\r
- // Execute asynchronously to give the UI events triggering this method\r
- // call time to run through before actually doing any resizing.\r
- // Otherwise the result will lag behind reality when scrollbar\r
- // visibility is toggled by the toolkit.\r
- ThreadUtils.asyncExec(swtThread, new Runnable() {\r
- @Override\r
- public void run() {\r
- if (sc.isDisposed())\r
- return;\r
- syncRefreshScrolledComposite();\r
- }\r
- });\r
- }\r
-\r
- void syncRefreshScrolledComposite() {\r
- // Execute asynchronously to give the UI events triggering this method\r
- // call time to run through before actually doing any resizing.\r
- // Otherwise the result will lag behind reality when scrollbar\r
- // visibility is toggled by the toolkit.\r
- Rectangle r = sc.getClientArea();\r
- Point contentSize = c.computeSize(r.width, SWT.DEFAULT);\r
- //System.out.println("[" + Thread.currentThread() + "] computed content size: " + contentSize + ", " + r);\r
- c.setSize(contentSize);\r
- }\r
-\r
- /**\r
- * (Re-)Load symbol groups, refresh the content\r
- */\r
- void load(Collection<ISymbolGroup> _libraries) {\r
- if (_libraries == null)\r
- _libraries = Collections.emptyList();\r
- final Collection<ISymbolGroup> libraries = _libraries;\r
- loaderExecutor.execute(new Runnable() {\r
- @Override\r
- public void run() {\r
- // Increment loadCount to signal that a new load cycle is on the way.\r
- Integer loadId = loadCount.incrementAndGet();\r
- try {\r
- loaderSemaphore.acquire();\r
- beginPopulate(loadId);\r
- } catch (InterruptedException e) {\r
- ExceptionUtils.logError(e);\r
- } catch (RuntimeException e) {\r
- loaderSemaphore.release();\r
- ExceptionUtils.logAndShowError(e);\r
- } catch (Error e) {\r
- loaderSemaphore.release();\r
- ExceptionUtils.logAndShowError(e);\r
- }\r
- }\r
-\r
- void beginPopulate(Integer loadId) {\r
- synchronized (groups) {\r
- // Must use toArray since groups are removed within the loop\r
- for (Iterator<Map.Entry<ISymbolGroup, PGroup>> it = groups.entrySet().iterator(); it.hasNext();) {\r
- Map.Entry<ISymbolGroup, PGroup> entry = it.next();\r
- if (!libraries.contains(entry.getKey())) {\r
- PGroup group = entry.getValue();\r
- it.remove();\r
- groupViewers.remove(entry.getKey());\r
- if (group != null && !group.isDisposed())\r
- ThreadUtils.asyncExec(swtThread, disposer(group));\r
- }\r
- }\r
- Set<GroupDescriptor> groupDescs = new TreeSet<GroupDescriptor>(groupComparator);\r
- for (ISymbolGroup lib : libraries) {\r
- PGroup group = groups.get(lib);\r
- //String label = group != null ? group.getText() : lib.getName();\r
- String label = lib.getName();\r
- groupDescs.add(new GroupDescriptor(lib, label, group));\r
- }\r
-\r
- // Populate all the missing groups.\r
- IFilter groupFilter = currentGroupFilter;\r
- populateGroups(\r
- loaderExecutor,\r
- null,\r
- groupDescs.iterator(),\r
- groupFilter,\r
- loadId,\r
- new Runnable() {\r
- @Override\r
- public void run() {\r
- loaderSemaphore.release();\r
- }\r
- });\r
- }\r
- }\r
- });\r
- }\r
-\r
- void populateGroups(\r
- final ExecutorService exec,\r
- final Control lastGroup,\r
- final Iterator<GroupDescriptor> iter,\r
- final IFilter groupFilter,\r
- final Integer loadId,\r
- final Runnable loadComplete)\r
- {\r
- // Check whether to still continue this population or not.\r
- int currentLoadId = loadCount.get();\r
- if (currentLoadId != loadId) {\r
- loadComplete.run();\r
- return;\r
- }\r
-\r
- if (!iter.hasNext()) {\r
- ThreadUtils.asyncExec(swtThread, new Runnable() {\r
- @Override\r
- public void run() {\r
- if (filter.isDisposed() || c.isDisposed())\r
- return;\r
- filter.focus();\r
- c.setVisible(true);\r
- }\r
- });\r
- loadComplete.run();\r
- return;\r
- }\r
-\r
- final GroupDescriptor desc = iter.next();\r
-\r
- ThreadUtils.asyncExec(swtThread, new Runnable() {\r
- @Override\r
- public void run() {\r
- // Must make sure that loadComplete is invoked under error\r
- // circumstances.\r
- try {\r
- populateGroup();\r
- } catch (RuntimeException e) {\r
- loadComplete.run();\r
- ExceptionUtils.logAndShowError(e);\r
- } catch (Error e) {\r
- loadComplete.run();\r
- ExceptionUtils.logAndShowError(e);\r
- }\r
- }\r
-\r
- public void populateGroup() {\r
- if (c.isDisposed()) {\r
- loaderSemaphore.release();\r
- return;\r
- }\r
- // $ SWT-begin\r
- //System.out.println("populating: " + desc.label);\r
- PGroup group = desc.group;\r
- if (group == null || group.isDisposed()) {\r
-\r
- group = new PGroup(c, SWT.NONE);\r
-// group.addListener(SWT.KeyUp, filterActivationListener);\r
-// group.addListener(SWT.KeyDown, filterActivationListener);\r
-// group.addListener(SWT.FocusIn, filterActivationListener);\r
-// group.addListener(SWT.FocusOut, filterActivationListener);\r
-// group.addListener(SWT.MouseDown, filterActivationListener);\r
-// group.addListener(SWT.MouseUp, filterActivationListener);\r
-// group.addListener(SWT.MouseDoubleClick, filterActivationListener);\r
-// group.addListener(SWT.Arm, filterActivationListener);\r
- if (lastGroup != null) {\r
- group.moveBelow(lastGroup);\r
- } else {\r
- group.moveAbove(null);\r
- }\r
-\r
- groups.put(desc.lib, group);\r
-\r
- group.setData(SymbolLibraryKeys.KEY_GROUP, desc.lib);\r
- group.setData(KEY_USER_EXPANDED, defaultExpanded);\r
-\r
- group.setExpanded(defaultExpanded);\r
- group.setFont(resourceManager.createFont(FontDescriptor.createFrom(group.getFont()).setStyle(SWT.NORMAL).increaseHeight(-1)));\r
- GridDataFactory.fillDefaults().align(SWT.FILL, SWT.BEGINNING).grab(true, false).applyTo(group);\r
- GridLayoutFactory.fillDefaults().spacing(0, 0).applyTo(group);\r
- group.addExpandListener(groupExpandListener);\r
-\r
- // Track group content changes if possible.\r
- if (desc.lib instanceof IModifiableSymbolGroup) {\r
- IModifiableSymbolGroup mod = (IModifiableSymbolGroup) desc.lib;\r
- mod.addListener(groupListener);\r
- }\r
- }\r
-\r
- group.setText(desc.label);\r
- group.setToolTipText(desc.label);\r
-\r
- // Initialize the group: set content provider, label provider and input.\r
- // NOTE: this should not yet start loading any data, just setup the viewer.\r
- // [Tuukka @ 2009-10-24] changed group contents to be\r
- // initialized lazily when needed. See references to initializeGroup(PGroup).\r
- //initializeGroup(group);\r
-\r
- // Hide the group immediately if necessary.\r
- boolean groupFiltered = !groupFilter.select(desc.label);\r
- group.setData(KEY_GROUP_FILTERED, Boolean.valueOf(groupFiltered));\r
- if (groupFiltered)\r
- setGroupVisible(group, false);\r
-\r
- syncRefreshScrolledComposite();\r
-\r
- final PGroup group_ = group;\r
- exec.execute(new Runnable() {\r
- @Override\r
- public void run() {\r
- populateGroups(exec, group_, iter, groupFilter, loadId, loadComplete);\r
- }\r
- });\r
- }\r
- });\r
- }\r
-\r
- /**\r
- * @param group\r
- * @return <code>null</code> if GalleryViewer is currently being created\r
- */\r
- GalleryViewer initializeGroup(final PGroup group) {\r
- if (group.isDisposed())\r
- return null;\r
-\r
- //System.out.println("initializeGroup(" + group + ")");\r
-\r
- synchronized (group) {\r
- if (group.getData(KEY_VIEWER_INITIALIZED) != null) {\r
- return (GalleryViewer) group.getData(SymbolLibraryKeys.KEY_GALLERY);\r
- }\r
- group.setData(KEY_VIEWER_INITIALIZED, Boolean.TRUE);\r
- }\r
-\r
- //System.out.println("initializing group: " + group.getText());\r
-\r
- // NOTE: this will wait until the SWT/AWT UI population has completed\r
- // and it will dispatch SWT events while waiting for AWT thread population\r
- // to complete. This may in turn cause other parties to invoke this same\r
- // initializeGroup method with the same group as parameter. This case\r
- // needs to be handled appropriately by callers.\r
- GalleryViewer viewer = new GalleryViewer(group);\r
-\r
- ISymbolGroup input = (ISymbolGroup) group.getData(SymbolLibraryKeys.KEY_GROUP);\r
- initializeViewer(group, input, viewer);\r
-\r
- groupViewers.put(input, viewer);\r
- group.setData(SymbolLibraryKeys.KEY_GALLERY, viewer);\r
-\r
- //System.out.println("initialized group: " + group.getText());\r
-\r
- return viewer;\r
- }\r
-\r
- void initializeViewer(final PGroup group, final ISymbolGroup input, final GalleryViewer viewer) {\r
- GridDataFactory.fillDefaults().align(SWT.FILL, SWT.BEGINNING).grab(true, false).applyTo(viewer.getControl());\r
- viewer.addDragSupport(new DragSourceParticipant());\r
- viewer.setAlign(FlowLayout.Align.Left);\r
- viewer.getDiagram().setHint(SynchronizationHints.ERROR_HANDLER, errorHandler);\r
-\r
- viewer.setContentProvider(new IStructuredContentProvider() {\r
-\r
- /**\r
- * Returns the elements in the input, which must be either an array or a\r
- * <code>Collection</code>.\r
- */\r
- @Override\r
- public Object[] getElements(Object inputElement) {\r
- if(inputElement == null) return new Object[0];\r
- return ((ISymbolGroup)inputElement).getItems();\r
- }\r
-\r
- /**\r
- * This implementation does nothing.\r
- */\r
- @Override\r
- public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {\r
- // do nothing.\r
- }\r
-\r
- /**\r
- * This implementation does nothing.\r
- */\r
- @Override\r
- public void dispose() {\r
- // do nothing.\r
- }\r
-\r
- });\r
- viewer.setLabelProvider(new LabelProvider());\r
- viewer.setInput(input);\r
-\r
- // Add event handler that closes libraries on double clicks into empty\r
- // space in library.\r
- viewer.getCanvasContext().getEventHandlerStack().add(new IEventHandler() {\r
- @Override\r
- public int getEventMask() {\r
- return EventTypes.MouseDoubleClickMask;\r
- }\r
- @Override\r
- public boolean handleEvent(org.simantics.scenegraph.g2d.events.Event e) {\r
- if (e instanceof MouseDoubleClickedEvent) {\r
- PickRequest req = new PickRequest(((MouseDoubleClickedEvent) e).controlPosition);\r
- Collection<IElement> result = new ArrayList<IElement>();\r
- DiagramUtils.pick(viewer.getDiagram(), req, result);\r
- if (!result.isEmpty())\r
- return false;\r
-\r
- //System.out.println("NOTHING CLICKED");\r
- if (group.isDisposed())\r
- return false;\r
- group.getDisplay().asyncExec(new Runnable() {\r
- @Override\r
- public void run() {\r
- if (group.isDisposed())\r
- return;\r
-\r
- boolean exp = !group.getExpanded();\r
- group.setData(KEY_USER_EXPANDED, Boolean.valueOf(exp));\r
- setGroupExpandedWithoutNotification(group, exp);\r
- refreshScrolledComposite();\r
- }\r
- });\r
- return true;\r
- }\r
- return false;\r
- }\r
- }, 0);\r
- }\r
-\r
- static String toPatternString(String filter) {\r
- if (!filter.isEmpty()) {\r
- // Force searching in lowercase.\r
- filter = filter.toLowerCase();\r
-\r
- // Construct a regular expression from the specified text.\r
- String regExFilter = filter\r
- .replace("\\", "\\\\") // \ -> \\\r
- .replace(".", "\\.") // . -> \.\r
- .replace("*", ".*") // * -> Any 0..n characters\r
- .replace("?", ".") // ? -> Any single character\r
- .replace("+", "\\+") // + -> \+\r
- .replace("(", "\\(") // ( -> \(\r
- .replace(")", "\\)") // ) -> \)\r
- .replace("[", "\\[") // [ -> \[\r
- .replace("]", "\\]") // ] -> \]\r
- .replace("{", "\\{") // { -> \{\r
- .replace("}", "\\}") // } -> \}\r
- .replace("^", "\\^") // ^ -> \^\r
- .replace("$", "\\$") // $ -> \$\r
- .replace("|", ".*|") // $ -> \$\r
- //.replace("|", "\\|") // | -> \|\r
- .replace("&&", "\\&&") // && -> \&&\r
- ;\r
-\r
- if (!regExFilter.startsWith(".*"))\r
- regExFilter = ".*" + regExFilter ;\r
- if (!regExFilter.endsWith(".*"))\r
- regExFilter += ".*" ;\r
-\r
- return regExFilter;\r
- }\r
- return null;\r
- }\r
-\r
- static class SymbolItemFilter extends ViewerFilter {\r
- private final String string;\r
- private final Pattern pattern;\r
-\r
- public SymbolItemFilter(String string, Pattern pattern) {\r
- this.string = string;\r
- this.pattern = pattern;\r
- }\r
-\r
- @Override\r
- public boolean select(Viewer viewer, Object parentElement, Object element) {\r
- ISymbolItem item = (ISymbolItem) element;\r
- String name = item.getName();\r
- Matcher m = pattern.matcher(name.toLowerCase());\r
- //System.out.println(name + ": " + (m.matches() ? "PASS" : "FAIL"));\r
- return m.matches();\r
- }\r
-\r
- @Override\r
- public int hashCode() {\r
- return string == null ? 0 : string.hashCode();\r
- }\r
-\r
- @Override\r
- public boolean equals(Object obj) {\r
- if (this == obj)\r
- return true;\r
- if (obj == null)\r
- return false;\r
- if (getClass() != obj.getClass())\r
- return false;\r
- SymbolItemFilter other = (SymbolItemFilter) obj;\r
- if (string == null) {\r
- if (other.string != null)\r
- return false;\r
- } else if (!string.equals(other.string))\r
- return false;\r
- return true;\r
- }\r
- }\r
-\r
- static Pattern toPattern(String filterText) {\r
- String regExFilter = toPatternString(filterText);\r
- Pattern pattern = regExFilter != null ? Pattern.compile(regExFilter) : ANY;\r
- return pattern;\r
- }\r
-\r
- static IFilter composeFilter(final FilterConfiguration config) {\r
- final Mode mode = config.getMode();\r
- final List<Pattern> patterns = new ArrayList<Pattern>();\r
- for (GroupFilter f : config.getFilters()) {\r
- if (f.isActive())\r
- patterns.add(toPattern(f.getFilterText()));\r
- }\r
- return new IFilter() {\r
- @Override\r
- public boolean select(Object toTest) {\r
- if (patterns.isEmpty())\r
- return true;\r
-\r
- String s = (String) toTest;\r
- switch (mode) {\r
- case AND:\r
- for (Pattern pat : patterns) {\r
- Matcher m = pat.matcher(s.toLowerCase());\r
- //System.out.println(s + ": " + (m.matches() ? "PASS" : "FAIL"));\r
- if (!m.matches())\r
- return false;\r
- }\r
- return true;\r
- case OR:\r
- for (Pattern pat : patterns) {\r
- Matcher m = pat.matcher(s.toLowerCase());\r
- //System.out.println(s + ": " + (m.matches() ? "PASS" : "FAIL"));\r
- if (m.matches())\r
- return true;\r
- }\r
- return false;\r
- default:\r
- throw new Error("Shouldn't happen");\r
- }\r
- }\r
- };\r
- }\r
-\r
- void updateFilterConfiguration(FilterConfiguration config) {\r
- this.config = config;\r
- IFilter filter = composeFilter(config);\r
- this.currentGroupFilter = filter;\r
- }\r
-\r
- void applyGroupFilters() {\r
- IFilter groupFilter = this.currentGroupFilter;\r
- final boolean[] changed = new boolean[] { false };\r
-\r
- Control[] grps = c.getChildren();\r
- for (Control ctrl : grps) {\r
- final PGroup grp = (PGroup) ctrl;\r
- boolean visible = grp.getVisible();\r
- boolean shouldBeVisible = groupFilter.select(grp.getText());\r
- boolean change = visible != shouldBeVisible;\r
- changed[0] |= change;\r
-\r
- grp.setData(KEY_GROUP_FILTERED, Boolean.valueOf(!shouldBeVisible));\r
- if (change) {\r
- setGroupVisible(grp, shouldBeVisible);\r
- }\r
- }\r
-\r
- ThreadUtils.asyncExec(swtThread, new Runnable() {\r
- @Override\r
- public void run() {\r
- if (c.isDisposed())\r
- return;\r
- if (changed[0]) {\r
- c.layout(true);\r
- syncRefreshScrolledComposite();\r
- }\r
- }\r
- });\r
- }\r
-\r
- /**\r
- * Filters the symbol groups and makes them visible/invisible as necessary.\r
- * Invoke only from the SWT thread.\r
- * \r
- * @param text the filter text given by the client\r
- * @return <code>true</code> if all groups were successfully filtered\r
- * without asynchronous results\r
- */\r
- boolean filterGroups(String text) {\r
- //System.out.println("FILTERING WITH TEXT: " + text);\r
-\r
- String regExFilter = toPatternString(text);\r
- Pattern pattern = regExFilter != null ? Pattern.compile(regExFilter) : ANY;\r
-\r
- this.currentFilterPattern = pattern;\r
- final boolean[] changed = new boolean[] { false };\r
- boolean filteringComplete = true;\r
-\r
- ViewerFilter filter = null;\r
- if (regExFilter != null)\r
- filter = new SymbolItemFilter(regExFilter, pattern);\r
-\r
- Control[] grps = c.getChildren();\r
- for (Control ctrl : grps) {\r
- final PGroup grp = (PGroup) ctrl;\r
- if (grp.isDisposed())\r
- continue;\r
- Boolean contentsChanged = filterGroup(grp, filter);\r
- if (contentsChanged == null)\r
- filteringComplete = false;\r
- else\r
- changed[0] = contentsChanged;\r
- }\r
-\r
- ThreadUtils.asyncExec(swtThread, new Runnable() {\r
- @Override\r
- public void run() {\r
- if (c.isDisposed())\r
- return;\r
- if (changed[0]) {\r
- c.layout(true);\r
- syncRefreshScrolledComposite();\r
- }\r
- }\r
- });\r
-\r
- return filteringComplete;\r
- }\r
-\r
- static boolean objectEquals(Object o1, Object o2) {\r
- if (o1==o2) return true;\r
- if (o1==null && o2==null) return true;\r
- if (o1==null || o2==null) return false;\r
- return o1.equals(o2);\r
- }\r
-\r
- /**\r
- * @param grp\r
- * @return <code>true</code> if the filtering caused changes in the group,\r
- * <code>false</code> if not, and <code>null</code> if filtering\r
- * could not be performed yet, meaning results need to be asked\r
- * later\r
- */\r
- private Boolean filterGroup(PGroup grp, ViewerFilter filter) {\r
- boolean changed = false;\r
- GalleryViewer viewer = initializeGroup(grp);\r
- if (viewer == null)\r
- return null;\r
-\r
- ViewerFilter lastFilter = viewer.getFilter();\r
-\r
- boolean groupFiltered = Boolean.TRUE.equals(grp.getData(KEY_GROUP_FILTERED));\r
- boolean userExpanded = Boolean.TRUE.equals(grp.getData(KEY_USER_EXPANDED));\r
- final boolean expanded = grp.getExpanded();\r
- final boolean visible = grp.getVisible();\r
- final boolean filterChanged = !objectEquals(filter, lastFilter);\r
-\r
- // Find out how much data would be shown with the new filter.\r
- viewer.setFilter(filter);\r
- Object[] elements = viewer.getFilteredElements();\r
-\r
- boolean shouldBeVisible = !groupFiltered && elements.length > 0;\r
- boolean shouldBeExpanded = shouldBeVisible && (filter != null || userExpanded);\r
-\r
-// System.out.format("%40s: visible/should be = %5s %5s, expanded/user expanded/should be = %5s %5s %5s\n",\r
-// grp.getText(),\r
-// String.valueOf(visible),\r
-// String.valueOf(shouldBeVisible),\r
-// String.valueOf(expanded),\r
-// String.valueOf(userExpanded),\r
-// String.valueOf(shouldBeExpanded));\r
-\r
- if (filterChanged || visible != shouldBeVisible || expanded != shouldBeExpanded) {\r
- changed = true;\r
-\r
- if (shouldBeVisible == userExpanded) {\r
- if (expanded != shouldBeExpanded)\r
- setGroupExpandedWithoutNotification(grp, shouldBeExpanded);\r
- setGroupVisible(grp, shouldBeVisible);\r
- } else {\r
- if (filter != null) {\r
- if (shouldBeVisible) {\r
- // The user has not expanded this group but the group contains\r
- // stuff that matches the non-empty filter => show the group.\r
- setGroupExpandedWithoutNotification(grp, true);\r
- setGroupVisible(grp, true);\r
- } else {\r
- // The user has expanded this group but it does not contain items\r
- // should should be shown with the current non-empty filter => hide the group.\r
- setGroupExpandedWithoutNotification(grp, true);\r
- setGroupVisible(grp, false);\r
- }\r
- } else {\r
- // All groups should be visible. Some should be expanded and others not.\r
- if (expanded != userExpanded)\r
- setGroupExpandedWithoutNotification(grp, userExpanded);\r
- if (!visible)\r
- setGroupVisible(grp, true);\r
- }\r
- }\r
-\r
- if (shouldBeExpanded) {\r
- viewer.refreshWithContent(elements);\r
- }\r
- }\r
-\r
-// String label = grp.getText();\r
-// Matcher m = pattern.matcher(label.toLowerCase());\r
-// boolean visible = m.matches();\r
-// if (visible != grp.getVisible()) {\r
-// changed = true;\r
-// setGroupVisible(grp, visible);\r
-// }\r
-\r
- return changed;\r
- }\r
-\r
- void setGroupExpandedWithoutNotification(PGroup grp, boolean expanded) {\r
- // Ok, don't need to remove/add expand listener, PGroup will not notify\r
- // listeners when setExpanded is invoked.\r
- //grp.removeExpandListener(groupExpandListener);\r
- grp.setExpanded(expanded);\r
- //grp.addExpandListener(groupExpandListener);\r
- }\r
-\r
- void setGroupVisible(PGroup group, boolean visible) {\r
- GridData gd = (GridData) group.getLayoutData();\r
- gd.exclude = !visible;\r
- group.setVisible(visible);\r
- }\r
-\r
- boolean isGroupFiltered(String label) {\r
- return !currentFilterPattern.matcher(label.toLowerCase()).matches();\r
- }\r
-\r
- class DragSourceParticipant extends AbstractDiagramParticipant implements IDragSourceParticipant {\r
- @Reference Selection selection;\r
- @Dependency PointerInteractor pi;\r
- @Dependency TransformUtil util;\r
- @Dependency PickContext pickContext;\r
-\r
- @Override\r
- public int canDrag(MouseDragBegin me) {\r
- if (me.button != MouseEvent.LEFT_BUTTON) return 0;\r
- if (getHint(Hints.KEY_TOOL) != Hints.POINTERTOOL) return 0;\r
- assertDependencies();\r
-\r
- PickRequest req = new PickRequest(me.startCanvasPos);\r
- req.pickPolicy = PickRequest.PickPolicy.PICK_INTERSECTING_OBJECTS;\r
- List<IElement> picks = new ArrayList<IElement>();\r
- pickContext.pick(diagram, req, picks);\r
- Set<IElement> sel = selection.getSelection(me.mouseId);\r
-\r
- if (Collections.disjoint(sel, picks)) return 0;\r
- // Box Select\r
- return DnDConstants.ACTION_LINK;\r
- }\r
-\r
- @Override\r
- public Transferable dragStart(DragGestureEvent e) {\r
- AWTChassis chassis = (AWTChassis) e.getComponent();\r
- ICanvasContext cc = chassis.getCanvasContext();\r
- Selection sel = cc.getSingleItem(Selection.class);\r
-\r
- Set<IElement> ss = sel.getSelection(0);\r
- if (ss.isEmpty()) return null;\r
- Object[] res = new Object[ss.size()];\r
- int index = 0;\r
- for (IElement ee : ss)\r
- res[index++] = ee.getHint(ElementHints.KEY_OBJECT);\r
-\r
- ISelection object = new StructuredSelection(res);\r
-\r
- return new LocalObjectTransferable(object);\r
- }\r
-\r
- @Override\r
- public int getAllowedOps() {\r
- return DnDConstants.ACTION_COPY;\r
- }\r
- @Override\r
- public void dragDropEnd(DragSourceDropEvent dsde) {\r
-// System.out.println("dragDropEnd: " + dsde);\r
- LocalObjectTransfer.getTransfer().clear();\r
- }\r
- @Override\r
- public void dragEnter(DragSourceDragEvent dsde) {\r
- }\r
- @Override\r
- public void dragExit(DragSourceEvent dse) {\r
- }\r
- @Override\r
- public void dragOver(DragSourceDragEvent dsde) {\r
- }\r
- @Override\r
- public void dropActionChanged(DragSourceDragEvent dsde) {\r
- }\r
- }\r
-\r
- ExpandListener groupExpandListener = new ExpandListener() {\r
- @Override\r
- public void itemCollapsed(ExpandEvent e) {\r
- final PGroup group = (PGroup) e.widget;\r
- group.setData(KEY_USER_EXPANDED, Boolean.FALSE);\r
- //System.out.println("item collapsed: " + group + ", " + sc.getClientArea());\r
- refreshScrolledComposite();\r
- }\r
- @Override\r
- public void itemExpanded(ExpandEvent e) {\r
- final PGroup group = (PGroup) e.widget;\r
- group.setData(KEY_USER_EXPANDED, Boolean.TRUE);\r
- //System.out.println("item expanded: " + group + ", " + sc.getClientArea());\r
- final GalleryViewer viewer = initializeGroup(group);\r
- if (viewer == null)\r
- return;\r
- ThreadUtils.asyncExec(swtThread, new Runnable() {\r
- @Override\r
- public void run() {\r
- viewer.refresh();\r
- refreshScrolledComposite();\r
- }\r
- });\r
- }\r
- };\r
-\r
- @Override\r
- public void setFocus() {\r
- c.setFocus();\r
- }\r
-\r
- public boolean isDefaultExpanded() {\r
- return defaultExpanded;\r
- }\r
-\r
- public void setDefaultExpanded(boolean defaultExpanded) {\r
- this.defaultExpanded = defaultExpanded;\r
- }\r
-\r
- Runnable disposer(final Widget w) {\r
- return new Runnable() {\r
- @Override\r
- public void run() {\r
- if (w.isDisposed())\r
- return;\r
- w.dispose();\r
- }\r
- };\r
- }\r
-\r
- void contributeActions() {\r
- IToolBarManager toolbar = getViewSite().getActionBars().getToolBarManager();\r
- toolbar.add(new Action("Collapse All",\r
- BundleUtils.getImageDescriptorFromPlugin(Activator.PLUGIN_ID, "icons/collapseall.gif")) {\r
- @Override\r
- public void run() {\r
- setAllExpandedStates(false);\r
- }\r
- });\r
- toolbar.add(new Action("Expand All",\r
- BundleUtils.getImageDescriptorFromPlugin(Activator.PLUGIN_ID, "icons/expandall.gif")) {\r
- @Override\r
- public void run() {\r
- setAllExpandedStates(true);\r
- }\r
- });\r
- toolbar.add(new Action("Configure Filters",\r
- BundleUtils.getImageDescriptorFromPlugin(Activator.PLUGIN_ID, "icons/filter_ps.gif")) {\r
- @Override\r
- public void run() {\r
- FilterConfiguration clone = new FilterConfiguration(config);\r
- FilterDialog fd = new FilterDialog(getViewSite().getShell(), Activator.getDefault().getDialogSettings(), clone);\r
- int result = fd.open();\r
- if (result != Window.OK)\r
- return;\r
-\r
- updateFilterConfiguration(clone);\r
- applyGroupFilters();\r
-\r
- try {\r
- savePreferences();\r
- } catch (BackingStoreException e) {\r
- ExceptionUtils.logAndShowError(e);\r
- }\r
- }\r
- });\r
- }\r
-\r
- void setAllExpandedStates(boolean targetState) {\r
- Boolean targetStateObj = Boolean.valueOf(targetState);\r
- boolean changed = false;\r
- setDefaultExpanded(targetState);\r
- Control[] grps = c.getChildren();\r
- //for (final PGroup grp : groups.values().toArray(new PGroup[0])) {\r
- for (Control control : grps) {\r
- final PGroup grp = (PGroup) control;\r
- grp.setData(KEY_USER_EXPANDED, targetStateObj);\r
- if (!grp.isDisposed() && grp.getExpanded() != targetState && grp.getVisible()) {\r
- final GalleryViewer viewer = initializeGroup(grp);\r
- setGroupExpandedWithoutNotification(grp, targetState);\r
- ThreadUtils.asyncExec(swtThread, new Runnable() {\r
- @Override\r
- public void run() {\r
- if (!grp.isDisposed()) {\r
- if (viewer != null)\r
- viewer.refresh();\r
- refreshScrolledComposite();\r
- }\r
- }\r
- });\r
- changed = true;\r
- }\r
- }\r
- if (changed)\r
- refreshScrolledComposite();\r
- }\r
-\r
- class ImageLoader implements Runnable {\r
-\r
- private final ImageProxy imageProxy;\r
- private final ISymbolItem item;\r
-\r
- public ImageLoader(ImageProxy imageProxy, ISymbolItem item) {\r
- this.imageProxy = imageProxy;\r
- this.item = item;\r
- }\r
-\r
- @Override\r
- public void run() {\r
- ThreadUtils.getBlockingWorkExecutor().execute(new Runnable() {\r
- @Override\r
- public void run() {\r
- runBlocking();\r
- }\r
- });\r
- }\r
-\r
- private void runBlocking() {\r
- try {\r
- IHintObservable hints = null;\r
- ISymbolGroup group = item.getGroup();\r
- if (group == null)\r
- throw new ProvisionException("No ISymbolGroup available for ISymbolItem " + item);\r
-\r
- GalleryViewer viewer = groupViewers.get(group);\r
- if (viewer == null) {\r
- // This is normal if this composite has been disposed while these are being ran.\r
- //throw new ProvisionException("No GalleryViewer available ISymbolGroup " + group);\r
- imageProxy.setSource(DefaultImages.UNKNOWN2.get());\r
- return;\r
- }\r
-\r
- hints = viewer.getDiagram();\r
- if (hints == null)\r
- throw new ProvisionException("No diagram available for GalleryViewer of group " + group);\r
-\r
- ElementClass ec = item.getElementClass(hints);\r
- StaticSymbol ss = ec.getSingleItem(StaticSymbol.class);\r
- Image source = ss == null ? DefaultImages.UNKNOWN2.get() : ss.getImage();\r
- imageProxy.setSource(source);\r
- } catch (ProvisionException e) {\r
- ExceptionUtils.logWarning("Failed to provide element class for symbol item " + item, e);\r
- imageProxy.setSource(DefaultImages.ERROR_DECORATOR.get());\r
- } catch (Exception e) {\r
- ExceptionUtils.logError(e);\r
- imageProxy.setSource(DefaultImages.ERROR_DECORATOR.get());\r
- } finally {\r
- }\r
- }\r
- }\r
-\r
- public FilterArea getFilterArea() {\r
- return filter;\r
- }\r
-\r
- Runnable filterActivator = new Runnable() {\r
- @Override\r
- public void run() {\r
- filter.focus();\r
- }\r
- };\r
- Listener filterActivationListener = new Listener() {\r
- @Override\r
- public void handleEvent(Event event) {\r
- //System.out.println("event: " + event);\r
- filterActivator.run();\r
- }\r
- };\r
-\r
- ISymbolGroupListener groupListener = new ISymbolGroupListener() {\r
- @Override\r
- public void itemsChanged(ISymbolGroup group) {\r
- GalleryViewer viewer = groupViewers.get(group);\r
- if (viewer != null) {\r
- ISymbolItem[] input = group.getItems();\r
- viewer.setInput(input);\r
- }\r
- }\r
- };\r
-\r
- @Override\r
- @SuppressWarnings("rawtypes")\r
- public Object getAdapter(Class adapter) {\r
- // For supporting Scene Graph viewer\r
- if (adapter == INode[].class) {\r
- List<INode> result = new ArrayList<INode>(groupViewers.size());\r
- for (GalleryViewer viewer : groupViewers.values()) {\r
- result.add(viewer.getCanvasContext().getSceneGraph());\r
- }\r
- return result.toArray(new INode[result.size()]);\r
- }\r
- return super.getAdapter(adapter);\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.symbollibrary.ui;
+
+import java.awt.datatransfer.Transferable;
+import java.awt.dnd.DnDConstants;
+import java.awt.dnd.DragGestureEvent;
+import java.awt.dnd.DragSourceDragEvent;
+import java.awt.dnd.DragSourceDropEvent;
+import java.awt.dnd.DragSourceEvent;
+import java.lang.ref.SoftReference;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.EnumSet;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.TreeSet;
+import java.util.WeakHashMap;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.Semaphore;
+import java.util.concurrent.ThreadFactory;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import org.eclipse.core.runtime.preferences.IEclipsePreferences;
+import org.eclipse.core.runtime.preferences.InstanceScope;
+import org.eclipse.jface.action.Action;
+import org.eclipse.jface.action.IToolBarManager;
+import org.eclipse.jface.layout.GridDataFactory;
+import org.eclipse.jface.layout.GridLayoutFactory;
+import org.eclipse.jface.resource.FontDescriptor;
+import org.eclipse.jface.resource.JFaceResources;
+import org.eclipse.jface.resource.LocalResourceManager;
+import org.eclipse.jface.viewers.AcceptAllFilter;
+import org.eclipse.jface.viewers.BaseLabelProvider;
+import org.eclipse.jface.viewers.IFilter;
+import org.eclipse.jface.viewers.ISelection;
+import org.eclipse.jface.viewers.IStructuredContentProvider;
+import org.eclipse.jface.viewers.StructuredSelection;
+import org.eclipse.jface.viewers.Viewer;
+import org.eclipse.jface.viewers.ViewerFilter;
+import org.eclipse.jface.window.Window;
+import org.eclipse.nebula.widgets.pgroup.PGroup;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.custom.ScrolledComposite;
+import org.eclipse.swt.events.ControlAdapter;
+import org.eclipse.swt.events.ControlEvent;
+import org.eclipse.swt.events.DisposeEvent;
+import org.eclipse.swt.events.DisposeListener;
+import org.eclipse.swt.events.ExpandEvent;
+import org.eclipse.swt.events.ExpandListener;
+import org.eclipse.swt.events.ModifyEvent;
+import org.eclipse.swt.events.ModifyListener;
+import org.eclipse.swt.graphics.Color;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.graphics.Rectangle;
+import org.eclipse.swt.layout.GridData;
+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.Widget;
+import org.eclipse.ui.IMemento;
+import org.eclipse.ui.contexts.IContextService;
+import org.eclipse.ui.part.ViewPart;
+import org.osgi.service.prefs.BackingStoreException;
+import org.simantics.db.management.ISessionContextChangedListener;
+import org.simantics.db.management.ISessionContextProvider;
+import org.simantics.db.management.SessionContextChangedEvent;
+import org.simantics.diagram.internal.Activator;
+import org.simantics.diagram.symbollibrary.IModifiableSymbolGroup;
+import org.simantics.diagram.symbollibrary.ISymbolGroup;
+import org.simantics.diagram.symbollibrary.ISymbolGroupListener;
+import org.simantics.diagram.symbollibrary.ISymbolItem;
+import org.simantics.diagram.symbollibrary.ISymbolManager;
+import org.simantics.diagram.symbollibrary.ui.FilterConfiguration.Mode;
+import org.simantics.diagram.synchronization.ErrorHandler;
+import org.simantics.diagram.synchronization.LogErrorHandler;
+import org.simantics.diagram.synchronization.SynchronizationHints;
+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.chassis.AWTChassis;
+import org.simantics.g2d.diagram.DiagramUtils;
+import org.simantics.g2d.diagram.handler.PickContext;
+import org.simantics.g2d.diagram.handler.PickRequest;
+import org.simantics.g2d.diagram.handler.layout.FlowLayout;
+import org.simantics.g2d.diagram.participant.AbstractDiagramParticipant;
+import org.simantics.g2d.diagram.participant.Selection;
+import org.simantics.g2d.diagram.participant.pointertool.PointerInteractor;
+import org.simantics.g2d.dnd.IDragSourceParticipant;
+import org.simantics.g2d.element.ElementClass;
+import org.simantics.g2d.element.ElementHints;
+import org.simantics.g2d.element.IElement;
+import org.simantics.g2d.element.handler.StaticSymbol;
+import org.simantics.g2d.gallery.GalleryViewer;
+import org.simantics.g2d.gallery.ILabelProvider;
+import org.simantics.g2d.image.DefaultImages;
+import org.simantics.g2d.image.Image;
+import org.simantics.g2d.image.Image.Feature;
+import org.simantics.g2d.image.impl.ImageProxy;
+import org.simantics.g2d.participant.TransformUtil;
+import org.simantics.project.IProject;
+import org.simantics.project.ProjectKeys;
+import org.simantics.scenegraph.INode;
+import org.simantics.scenegraph.g2d.events.EventTypes;
+import org.simantics.scenegraph.g2d.events.IEventHandler;
+import org.simantics.scenegraph.g2d.events.MouseEvent;
+import org.simantics.scenegraph.g2d.events.MouseEvent.MouseDoubleClickedEvent;
+import org.simantics.scenegraph.g2d.events.MouseEvent.MouseDragBegin;
+import org.simantics.ui.SimanticsUI;
+import org.simantics.ui.dnd.LocalObjectTransfer;
+import org.simantics.ui.dnd.LocalObjectTransferable;
+import org.simantics.utils.datastructures.cache.ProvisionException;
+import org.simantics.utils.datastructures.hints.HintListenerAdapter;
+import org.simantics.utils.datastructures.hints.HintTracker;
+import org.simantics.utils.datastructures.hints.IHintContext.Key;
+import org.simantics.utils.datastructures.hints.IHintListener;
+import org.simantics.utils.datastructures.hints.IHintObservable;
+import org.simantics.utils.threads.IThreadWorkQueue;
+import org.simantics.utils.threads.SWTThread;
+import org.simantics.utils.threads.ThreadUtils;
+import org.simantics.utils.ui.BundleUtils;
+import org.simantics.utils.ui.ExceptionUtils;
+import org.simantics.utils.ui.workbench.StringMemento;
+
+/**
+ * @author Tuukka Lehtonen
+ */
+public class SymbolLibraryView extends ViewPart {
+
+ private static final String SYMBOL_LIBRARY_CONTEXT = "org.simantics.diagram.symbolLibrary";
+ private static final String PREF_FILTERS = "filters";
+ private static final String TAG_FILTER_MODE = "filterMode";
+ private static final String TAG_FILTER = "filter";
+
+ private static final String ATTR_ACTIVE = "active";
+ private static final String ATTR_FILTER_TEXT = "filterText";
+ private static final String ATTR_NAME = "name";
+
+ private static final int FILTER_DELAY = 500;
+
+ private static final String KEY_VIEWER_INITIALIZED = "viewer.initialized";
+ private static final String KEY_USER_EXPANDED = "userExpanded";
+ private static final String KEY_GROUP_FILTERED = "groupFiltered";
+
+ /** Root composite */
+ ScrolledComposite sc;
+ Composite c;
+ ISessionContextProvider sessionCtxProvider;
+ IThreadWorkQueue swtThread;
+ boolean defaultExpanded = false;
+
+ /**
+ * This value is incremented each time a load method is called and symbol
+ * group population is started. It can be used by
+ * {@link #populateGroups(ExecutorService, Control, Iterator, IFilter)} to
+ * tell whether it should stop its population job because a later load
+ * will override its results anyway.
+ */
+ AtomicInteger loadCount = new AtomicInteger();
+
+ Map<ISymbolGroup, PGroup> groups = new HashMap<ISymbolGroup, PGroup>();
+ Map<ISymbolGroup, GalleryViewer> groupViewers = new HashMap<ISymbolGroup, GalleryViewer>();
+ LocalResourceManager resourceManager;
+ FilterArea filter;
+
+ ThreadFactory threadFactory = new ThreadFactory() {
+ @Override
+ public Thread newThread(Runnable r) {
+ Thread t = new Thread(r, "Symbol Library Loader");
+ t.setDaemon(false);
+ t.setPriority(Thread.NORM_PRIORITY);
+ return t;
+ }
+ };
+
+ Semaphore loaderSemaphore = new Semaphore(1);
+ ExecutorService loaderExecutor = Executors.newCachedThreadPool(threadFactory);
+
+ /**
+ * Used to prevent annoying reloading of symbols when groups are closed and
+ * reopened by not always having to schedule an {@link ImageLoader} in
+ * {@link LabelProvider#getImage(Object)}.
+ */
+ Map<ISymbolItem, SoftReference<ImageProxy>> imageCache = new WeakHashMap<ISymbolItem, SoftReference<ImageProxy>>();
+
+ static final Pattern ANY = Pattern.compile(".*");
+ Pattern currentFilterPattern = ANY;
+
+ FilterConfiguration config = new FilterConfiguration();
+ IFilter currentGroupFilter = AcceptAllFilter.getInstance();
+
+ ErrorHandler errorHandler = LogErrorHandler.INSTANCE;
+
+ static class GroupDescriptor {
+ public final ISymbolGroup lib;
+ public final String label;
+ public final PGroup group;
+
+ public GroupDescriptor(ISymbolGroup lib, String label, PGroup group) {
+ assert(lib != null);
+ assert(label != null);
+ this.lib = lib;
+ this.label = label;
+ this.group = group;
+ }
+ }
+
+ Comparator<GroupDescriptor> groupComparator = new Comparator<GroupDescriptor>() {
+ @Override
+ public int compare(GroupDescriptor o1, GroupDescriptor o2) {
+ return o1.label.compareToIgnoreCase(o2.label);
+ }
+ };
+
+ static final EnumSet<Feature> VOLATILE = EnumSet.of(Feature.Volatile);
+
+ static class PendingImage extends ImageProxy {
+ EnumSet<Feature> features;
+ PendingImage(Image source, EnumSet<Feature> features) {
+ super(source);
+ this.features = features;
+ }
+ @Override
+ public EnumSet<Feature> getFeatures() {
+ return features;
+ }
+ }
+
+ class LabelProvider extends BaseLabelProvider implements ILabelProvider {
+ @Override
+ public Image getImage(final Object element) {
+ ISymbolItem item = (ISymbolItem) element;
+ // Use a volatile ImageProxy to make the image loading asynchronous.
+ ImageProxy proxy = null;
+ SoftReference<ImageProxy> proxyRef = imageCache.get(item);
+ if (proxyRef != null)
+ proxy = proxyRef.get();
+ if (proxy == null) {
+ proxy = new PendingImage(DefaultImages.HOURGLASS.get(), VOLATILE);
+ imageCache.put(item, new SoftReference<ImageProxy>(proxy));
+ ThreadUtils.getNonBlockingWorkExecutor().schedule(new ImageLoader(proxy, item), 100, TimeUnit.MILLISECONDS);
+ }
+ return proxy;
+ }
+ @Override
+ public String getText(final Object element) {
+ return ((ISymbolItem) element).getName();
+ }
+ @Override
+ public String getToolTipText(Object element) {
+ ISymbolItem item = (ISymbolItem) element;
+ String name = item.getName();
+ String desc = item.getDescription();
+ return name.equals(desc) ? name : name + " - " + desc;
+ }
+
+ @Override
+ public java.awt.Image getToolTipImage(Object object) {
+ return null;
+ }
+ @Override
+ public Color getToolTipBackgroundColor(Object object) {
+ return null;
+ }
+
+ @Override
+ public Color getToolTipForegroundColor(Object object) {
+ return null;
+ }
+ }
+
+ public class ProjectTracker extends HintTracker {
+ public ProjectTracker() {
+ IHintListener symbolGroupListener = new HintListenerAdapter() {
+ @Override
+ public void hintChanged(IHintObservable sender, Key key, Object oldValue, Object newValue) {
+ @SuppressWarnings("unchecked")
+ Collection<ISymbolGroup> groups = (Collection<ISymbolGroup>) newValue;
+ load(groups);
+ }
+ };
+ addKeyHintListener(ISymbolManager.KEY_SYMBOL_GROUPS, symbolGroupListener);
+ }
+ }
+ ProjectTracker projectTracker= new ProjectTracker();
+
+ public class SessionContextTracker extends HintTracker implements ISessionContextChangedListener {
+ public SessionContextTracker() {
+ IHintListener activeProjectListener = new HintListenerAdapter() {
+ @Override
+ public void hintChanged(IHintObservable sender, Key key, Object oldValue, Object newValue) {
+ projectTracker.track((IProject) newValue);
+ }
+ };
+ addKeyHintListener(ProjectKeys.KEY_PROJECT, activeProjectListener);
+ }
+ @Override
+ public void sessionContextChanged(SessionContextChangedEvent event) {
+ track(event.getNewValue());
+ }
+ }
+ SessionContextTracker sessionContextTracker = new SessionContextTracker();
+
+ void attachToSession() {
+ // Track active ISessionContext changes
+ sessionCtxProvider = SimanticsUI.getSessionContextProvider(getViewSite().getWorkbenchWindow());
+ sessionCtxProvider.addContextChangedListener(sessionContextTracker);
+
+ // Start tracking the current session context for input changes.
+ // This will/must cause applySessionContext to get called.
+ // Doing the applySessionContext initialization this way
+ // instead of directly calling it will also make sure that
+ // applySessionContext is only called once when first initialized,
+ // and not twice like with the direct invocation.
+ sessionContextTracker.track(sessionCtxProvider.getSessionContext());
+ }
+
+ public void readPreferences() {
+ FilterConfiguration config = new FilterConfiguration();
+
+ IEclipsePreferences prefs = InstanceScope.INSTANCE.getNode(Activator.PLUGIN_ID);
+ String filters = prefs.get(PREF_FILTERS, null);
+
+ if (filters != null) {
+ IMemento memento = new StringMemento(filters);
+ for (IMemento child : memento.getChildren(TAG_FILTER)) {
+ String name = child.getString(ATTR_NAME);
+ String filterText = child.getString(ATTR_FILTER_TEXT);
+ boolean active = Boolean.TRUE.equals(child.getBoolean(ATTR_ACTIVE));
+
+ if (name != null && !name.trim().isEmpty() && filterText != null && !filterText.isEmpty()) {
+ config.getFilters().add(new GroupFilter(name, filterText, active));
+ }
+ }
+ Collections.sort(config.getFilters());
+
+ String filterMode = memento.getString(TAG_FILTER_MODE);
+ if (filterMode != null) {
+ try {
+ Mode mode = Mode.valueOf(filterMode);
+ config.setMode(mode);
+ } catch (IllegalArgumentException e) {
+ }
+ }
+ }
+
+ updateFilterConfiguration(config);
+ }
+
+ void savePreferences() throws BackingStoreException {
+ IEclipsePreferences prefs = InstanceScope.INSTANCE.getNode(Activator.PLUGIN_ID);
+
+ IMemento memento = new StringMemento();
+ for (GroupFilter f : config.getFilters()) {
+ IMemento child = memento.createChild(TAG_FILTER);
+ child.putString(ATTR_NAME, f.getName());
+ child.putString(ATTR_FILTER_TEXT, f.getFilterText());
+ child.putBoolean(ATTR_ACTIVE, f.isActive());
+ }
+ memento.putString(TAG_FILTER_MODE, config.getMode().toString());
+
+ prefs.put(PREF_FILTERS, memento.toString());
+
+ prefs.flush();
+ }
+
+ @Override
+ public void createPartControl(final Composite parent) {
+ // Prime the image, make it available.
+ DefaultImages.HOURGLASS.get();
+
+ readPreferences();
+
+ this.resourceManager = new LocalResourceManager(JFaceResources.getResources(parent.getDisplay()), parent);
+ swtThread = SWTThread.getThreadAccess(parent);
+
+ GridLayoutFactory.fillDefaults().spacing(0, 0).applyTo(parent);
+
+ filter = new FilterArea(parent, SWT.NONE);
+ GridDataFactory.fillDefaults().grab(true, false).applyTo(filter);
+ filter.getText().addModifyListener(new ModifyListener() {
+ int modCount = 0;
+ //long lastModificationTime = -1000;
+ @Override
+ public void modifyText(ModifyEvent e) {
+ scheduleDelayedFilter(FILTER_DELAY, TimeUnit.MILLISECONDS);
+ }
+ private void scheduleDelayedFilter(long filterDelay, TimeUnit delayUnit) {
+ final String text = filter.getText().getText();
+
+ //long time = System.currentTimeMillis();
+ //long delta = time - lastModificationTime;
+ //lastModificationTime = time;
+
+ final int count = ++modCount;
+ ThreadUtils.getNonBlockingWorkExecutor().schedule(new Runnable() {
+ @Override
+ public void run() {
+ int newCount = modCount;
+ if (newCount != count)
+ return;
+
+ ThreadUtils.asyncExec(swtThread, new Runnable() {
+ @Override
+ public void run() {
+ if (sc.isDisposed())
+ return;
+ if (!filterGroups(text)) {
+ scheduleDelayedFilter(100, TimeUnit.MILLISECONDS);
+ }
+ }
+ });
+ }
+ }, filterDelay, delayUnit);
+ }
+ });
+
+ sc = new ScrolledComposite(parent, SWT.V_SCROLL);
+ GridDataFactory.fillDefaults().grab(true, true).applyTo(sc);
+ sc.setAlwaysShowScrollBars(false);
+ sc.setExpandHorizontal(false);
+ sc.setExpandVertical(false);
+ sc.getVerticalBar().setIncrement(30);
+ sc.getVerticalBar().setPageIncrement(200);
+ sc.addControlListener( new ControlAdapter() {
+ @Override
+ public void controlResized(ControlEvent e) {
+ //System.out.println("ScrolledComposite resized: " + sc.getSize());
+ refreshScrolledComposite();
+ }
+ });
+
+ c = new Composite(sc, 0);
+ c.setVisible(false);
+ GridLayoutFactory.fillDefaults().spacing(0, 0).applyTo(c);
+
+ sc.setContent(c);
+
+ c.addDisposeListener(new DisposeListener() {
+ @Override
+ public void widgetDisposed(DisposeEvent e) {
+ // These should be in exactly this order to prevent them from
+ // screwing each other up.
+ sessionContextTracker.untrack();
+ projectTracker.untrack();
+
+ // Remember to shutdown the executor
+ loaderExecutor.shutdown();
+ }});
+
+ contributeActions();
+ attachToSession();
+
+ IContextService cs = (IContextService) getSite().getService(IContextService.class);
+ cs.activateContext(SYMBOL_LIBRARY_CONTEXT);
+ }
+
+ @Override
+ public void dispose() {
+ if (sessionCtxProvider != null) {
+ sessionCtxProvider.removeContextChangedListener(sessionContextTracker);
+ sessionCtxProvider = null;
+ }
+ }
+
+ void refreshScrolledComposite() {
+ // Execute asynchronously to give the UI events triggering this method
+ // call time to run through before actually doing any resizing.
+ // Otherwise the result will lag behind reality when scrollbar
+ // visibility is toggled by the toolkit.
+ ThreadUtils.asyncExec(swtThread, new Runnable() {
+ @Override
+ public void run() {
+ if (sc.isDisposed())
+ return;
+ syncRefreshScrolledComposite();
+ }
+ });
+ }
+
+ void syncRefreshScrolledComposite() {
+ // Execute asynchronously to give the UI events triggering this method
+ // call time to run through before actually doing any resizing.
+ // Otherwise the result will lag behind reality when scrollbar
+ // visibility is toggled by the toolkit.
+ Rectangle r = sc.getClientArea();
+ Point contentSize = c.computeSize(r.width, SWT.DEFAULT);
+ //System.out.println("[" + Thread.currentThread() + "] computed content size: " + contentSize + ", " + r);
+ c.setSize(contentSize);
+ }
+
+ /**
+ * (Re-)Load symbol groups, refresh the content
+ */
+ void load(Collection<ISymbolGroup> _libraries) {
+ if (_libraries == null)
+ _libraries = Collections.emptyList();
+ final Collection<ISymbolGroup> libraries = _libraries;
+ loaderExecutor.execute(new Runnable() {
+ @Override
+ public void run() {
+ // Increment loadCount to signal that a new load cycle is on the way.
+ Integer loadId = loadCount.incrementAndGet();
+ try {
+ loaderSemaphore.acquire();
+ beginPopulate(loadId);
+ } catch (InterruptedException e) {
+ ExceptionUtils.logError(e);
+ } catch (RuntimeException e) {
+ loaderSemaphore.release();
+ ExceptionUtils.logAndShowError(e);
+ } catch (Error e) {
+ loaderSemaphore.release();
+ ExceptionUtils.logAndShowError(e);
+ }
+ }
+
+ void beginPopulate(Integer loadId) {
+ synchronized (groups) {
+ // Must use toArray since groups are removed within the loop
+ for (Iterator<Map.Entry<ISymbolGroup, PGroup>> it = groups.entrySet().iterator(); it.hasNext();) {
+ Map.Entry<ISymbolGroup, PGroup> entry = it.next();
+ if (!libraries.contains(entry.getKey())) {
+ PGroup group = entry.getValue();
+ it.remove();
+ groupViewers.remove(entry.getKey());
+ if (group != null && !group.isDisposed())
+ ThreadUtils.asyncExec(swtThread, disposer(group));
+ }
+ }
+ Set<GroupDescriptor> groupDescs = new TreeSet<GroupDescriptor>(groupComparator);
+ for (ISymbolGroup lib : libraries) {
+ PGroup group = groups.get(lib);
+ //String label = group != null ? group.getText() : lib.getName();
+ String label = lib.getName();
+ groupDescs.add(new GroupDescriptor(lib, label, group));
+ }
+
+ // Populate all the missing groups.
+ IFilter groupFilter = currentGroupFilter;
+ populateGroups(
+ loaderExecutor,
+ null,
+ groupDescs.iterator(),
+ groupFilter,
+ loadId,
+ new Runnable() {
+ @Override
+ public void run() {
+ loaderSemaphore.release();
+ }
+ });
+ }
+ }
+ });
+ }
+
+ void populateGroups(
+ final ExecutorService exec,
+ final Control lastGroup,
+ final Iterator<GroupDescriptor> iter,
+ final IFilter groupFilter,
+ final Integer loadId,
+ final Runnable loadComplete)
+ {
+ // Check whether to still continue this population or not.
+ int currentLoadId = loadCount.get();
+ if (currentLoadId != loadId) {
+ loadComplete.run();
+ return;
+ }
+
+ if (!iter.hasNext()) {
+ ThreadUtils.asyncExec(swtThread, new Runnable() {
+ @Override
+ public void run() {
+ if (filter.isDisposed() || c.isDisposed())
+ return;
+ filter.focus();
+ c.setVisible(true);
+ }
+ });
+ loadComplete.run();
+ return;
+ }
+
+ final GroupDescriptor desc = iter.next();
+
+ ThreadUtils.asyncExec(swtThread, new Runnable() {
+ @Override
+ public void run() {
+ // Must make sure that loadComplete is invoked under error
+ // circumstances.
+ try {
+ populateGroup();
+ } catch (RuntimeException e) {
+ loadComplete.run();
+ ExceptionUtils.logAndShowError(e);
+ } catch (Error e) {
+ loadComplete.run();
+ ExceptionUtils.logAndShowError(e);
+ }
+ }
+
+ public void populateGroup() {
+ if (c.isDisposed()) {
+ loaderSemaphore.release();
+ return;
+ }
+ // $ SWT-begin
+ //System.out.println("populating: " + desc.label);
+ PGroup group = desc.group;
+ if (group == null || group.isDisposed()) {
+
+ group = new PGroup(c, SWT.NONE);
+// group.addListener(SWT.KeyUp, filterActivationListener);
+// group.addListener(SWT.KeyDown, filterActivationListener);
+// group.addListener(SWT.FocusIn, filterActivationListener);
+// group.addListener(SWT.FocusOut, filterActivationListener);
+// group.addListener(SWT.MouseDown, filterActivationListener);
+// group.addListener(SWT.MouseUp, filterActivationListener);
+// group.addListener(SWT.MouseDoubleClick, filterActivationListener);
+// group.addListener(SWT.Arm, filterActivationListener);
+ if (lastGroup != null) {
+ group.moveBelow(lastGroup);
+ } else {
+ group.moveAbove(null);
+ }
+
+ groups.put(desc.lib, group);
+
+ group.setData(SymbolLibraryKeys.KEY_GROUP, desc.lib);
+ group.setData(KEY_USER_EXPANDED, defaultExpanded);
+
+ group.setExpanded(defaultExpanded);
+ group.setFont(resourceManager.createFont(FontDescriptor.createFrom(group.getFont()).setStyle(SWT.NORMAL).increaseHeight(-1)));
+ GridDataFactory.fillDefaults().align(SWT.FILL, SWT.BEGINNING).grab(true, false).applyTo(group);
+ GridLayoutFactory.fillDefaults().spacing(0, 0).applyTo(group);
+ group.addExpandListener(groupExpandListener);
+
+ // Track group content changes if possible.
+ if (desc.lib instanceof IModifiableSymbolGroup) {
+ IModifiableSymbolGroup mod = (IModifiableSymbolGroup) desc.lib;
+ mod.addListener(groupListener);
+ }
+ }
+
+ group.setText(desc.label);
+ group.setToolTipText(desc.label);
+
+ // Initialize the group: set content provider, label provider and input.
+ // NOTE: this should not yet start loading any data, just setup the viewer.
+ // [Tuukka @ 2009-10-24] changed group contents to be
+ // initialized lazily when needed. See references to initializeGroup(PGroup).
+ //initializeGroup(group);
+
+ // Hide the group immediately if necessary.
+ boolean groupFiltered = !groupFilter.select(desc.label);
+ group.setData(KEY_GROUP_FILTERED, Boolean.valueOf(groupFiltered));
+ if (groupFiltered)
+ setGroupVisible(group, false);
+
+ syncRefreshScrolledComposite();
+
+ final PGroup group_ = group;
+ exec.execute(new Runnable() {
+ @Override
+ public void run() {
+ populateGroups(exec, group_, iter, groupFilter, loadId, loadComplete);
+ }
+ });
+ }
+ });
+ }
+
+ /**
+ * @param group
+ * @return <code>null</code> if GalleryViewer is currently being created
+ */
+ GalleryViewer initializeGroup(final PGroup group) {
+ if (group.isDisposed())
+ return null;
+
+ //System.out.println("initializeGroup(" + group + ")");
+
+ synchronized (group) {
+ if (group.getData(KEY_VIEWER_INITIALIZED) != null) {
+ return (GalleryViewer) group.getData(SymbolLibraryKeys.KEY_GALLERY);
+ }
+ group.setData(KEY_VIEWER_INITIALIZED, Boolean.TRUE);
+ }
+
+ //System.out.println("initializing group: " + group.getText());
+
+ // NOTE: this will wait until the SWT/AWT UI population has completed
+ // and it will dispatch SWT events while waiting for AWT thread population
+ // to complete. This may in turn cause other parties to invoke this same
+ // initializeGroup method with the same group as parameter. This case
+ // needs to be handled appropriately by callers.
+ GalleryViewer viewer = new GalleryViewer(group);
+
+ ISymbolGroup input = (ISymbolGroup) group.getData(SymbolLibraryKeys.KEY_GROUP);
+ initializeViewer(group, input, viewer);
+
+ groupViewers.put(input, viewer);
+ group.setData(SymbolLibraryKeys.KEY_GALLERY, viewer);
+
+ //System.out.println("initialized group: " + group.getText());
+
+ return viewer;
+ }
+
+ void initializeViewer(final PGroup group, final ISymbolGroup input, final GalleryViewer viewer) {
+ GridDataFactory.fillDefaults().align(SWT.FILL, SWT.BEGINNING).grab(true, false).applyTo(viewer.getControl());
+ viewer.addDragSupport(new DragSourceParticipant());
+ viewer.setAlign(FlowLayout.Align.Left);
+ viewer.getDiagram().setHint(SynchronizationHints.ERROR_HANDLER, errorHandler);
+
+ viewer.setContentProvider(new IStructuredContentProvider() {
+
+ /**
+ * Returns the elements in the input, which must be either an array or a
+ * <code>Collection</code>.
+ */
+ @Override
+ public Object[] getElements(Object inputElement) {
+ if(inputElement == null) return new Object[0];
+ return ((ISymbolGroup)inputElement).getItems();
+ }
+
+ /**
+ * This implementation does nothing.
+ */
+ @Override
+ public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
+ // do nothing.
+ }
+
+ /**
+ * This implementation does nothing.
+ */
+ @Override
+ public void dispose() {
+ // do nothing.
+ }
+
+ });
+ viewer.setLabelProvider(new LabelProvider());
+ viewer.setInput(input);
+
+ // Add event handler that closes libraries on double clicks into empty
+ // space in library.
+ viewer.getCanvasContext().getEventHandlerStack().add(new IEventHandler() {
+ @Override
+ public int getEventMask() {
+ return EventTypes.MouseDoubleClickMask;
+ }
+ @Override
+ public boolean handleEvent(org.simantics.scenegraph.g2d.events.Event e) {
+ if (e instanceof MouseDoubleClickedEvent) {
+ PickRequest req = new PickRequest(((MouseDoubleClickedEvent) e).controlPosition);
+ Collection<IElement> result = new ArrayList<IElement>();
+ DiagramUtils.pick(viewer.getDiagram(), req, result);
+ if (!result.isEmpty())
+ return false;
+
+ //System.out.println("NOTHING CLICKED");
+ if (group.isDisposed())
+ return false;
+ group.getDisplay().asyncExec(new Runnable() {
+ @Override
+ public void run() {
+ if (group.isDisposed())
+ return;
+
+ boolean exp = !group.getExpanded();
+ group.setData(KEY_USER_EXPANDED, Boolean.valueOf(exp));
+ setGroupExpandedWithoutNotification(group, exp);
+ refreshScrolledComposite();
+ }
+ });
+ return true;
+ }
+ return false;
+ }
+ }, 0);
+ }
+
+ static String toPatternString(String filter) {
+ if (!filter.isEmpty()) {
+ // Force searching in lowercase.
+ filter = filter.toLowerCase();
+
+ // Construct a regular expression from the specified text.
+ String regExFilter = filter
+ .replace("\\", "\\\\") // \ -> \\
+ .replace(".", "\\.") // . -> \.
+ .replace("*", ".*") // * -> Any 0..n characters
+ .replace("?", ".") // ? -> Any single character
+ .replace("+", "\\+") // + -> \+
+ .replace("(", "\\(") // ( -> \(
+ .replace(")", "\\)") // ) -> \)
+ .replace("[", "\\[") // [ -> \[
+ .replace("]", "\\]") // ] -> \]
+ .replace("{", "\\{") // { -> \{
+ .replace("}", "\\}") // } -> \}
+ .replace("^", "\\^") // ^ -> \^
+ .replace("$", "\\$") // $ -> \$
+ .replace("|", ".*|") // $ -> \$
+ //.replace("|", "\\|") // | -> \|
+ .replace("&&", "\\&&") // && -> \&&
+ ;
+
+ if (!regExFilter.startsWith(".*"))
+ regExFilter = ".*" + regExFilter ;
+ if (!regExFilter.endsWith(".*"))
+ regExFilter += ".*" ;
+
+ return regExFilter;
+ }
+ return null;
+ }
+
+ static class SymbolItemFilter extends ViewerFilter {
+ private final String string;
+ private final Pattern pattern;
+
+ public SymbolItemFilter(String string, Pattern pattern) {
+ this.string = string;
+ this.pattern = pattern;
+ }
+
+ @Override
+ public boolean select(Viewer viewer, Object parentElement, Object element) {
+ ISymbolItem item = (ISymbolItem) element;
+ String name = item.getName();
+ Matcher m = pattern.matcher(name.toLowerCase());
+ //System.out.println(name + ": " + (m.matches() ? "PASS" : "FAIL"));
+ return m.matches();
+ }
+
+ @Override
+ public int hashCode() {
+ return string == null ? 0 : string.hashCode();
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (this == obj)
+ return true;
+ if (obj == null)
+ return false;
+ if (getClass() != obj.getClass())
+ return false;
+ SymbolItemFilter other = (SymbolItemFilter) obj;
+ if (string == null) {
+ if (other.string != null)
+ return false;
+ } else if (!string.equals(other.string))
+ return false;
+ return true;
+ }
+ }
+
+ static Pattern toPattern(String filterText) {
+ String regExFilter = toPatternString(filterText);
+ Pattern pattern = regExFilter != null ? Pattern.compile(regExFilter) : ANY;
+ return pattern;
+ }
+
+ static IFilter composeFilter(final FilterConfiguration config) {
+ final Mode mode = config.getMode();
+ final List<Pattern> patterns = new ArrayList<Pattern>();
+ for (GroupFilter f : config.getFilters()) {
+ if (f.isActive())
+ patterns.add(toPattern(f.getFilterText()));
+ }
+ return new IFilter() {
+ @Override
+ public boolean select(Object toTest) {
+ if (patterns.isEmpty())
+ return true;
+
+ String s = (String) toTest;
+ switch (mode) {
+ case AND:
+ for (Pattern pat : patterns) {
+ Matcher m = pat.matcher(s.toLowerCase());
+ //System.out.println(s + ": " + (m.matches() ? "PASS" : "FAIL"));
+ if (!m.matches())
+ return false;
+ }
+ return true;
+ case OR:
+ for (Pattern pat : patterns) {
+ Matcher m = pat.matcher(s.toLowerCase());
+ //System.out.println(s + ": " + (m.matches() ? "PASS" : "FAIL"));
+ if (m.matches())
+ return true;
+ }
+ return false;
+ default:
+ throw new Error("Shouldn't happen");
+ }
+ }
+ };
+ }
+
+ void updateFilterConfiguration(FilterConfiguration config) {
+ this.config = config;
+ IFilter filter = composeFilter(config);
+ this.currentGroupFilter = filter;
+ }
+
+ void applyGroupFilters() {
+ IFilter groupFilter = this.currentGroupFilter;
+ final boolean[] changed = new boolean[] { false };
+
+ Control[] grps = c.getChildren();
+ for (Control ctrl : grps) {
+ final PGroup grp = (PGroup) ctrl;
+ boolean visible = grp.getVisible();
+ boolean shouldBeVisible = groupFilter.select(grp.getText());
+ boolean change = visible != shouldBeVisible;
+ changed[0] |= change;
+
+ grp.setData(KEY_GROUP_FILTERED, Boolean.valueOf(!shouldBeVisible));
+ if (change) {
+ setGroupVisible(grp, shouldBeVisible);
+ }
+ }
+
+ ThreadUtils.asyncExec(swtThread, new Runnable() {
+ @Override
+ public void run() {
+ if (c.isDisposed())
+ return;
+ if (changed[0]) {
+ c.layout(true);
+ syncRefreshScrolledComposite();
+ }
+ }
+ });
+ }
+
+ /**
+ * Filters the symbol groups and makes them visible/invisible as necessary.
+ * Invoke only from the SWT thread.
+ *
+ * @param text the filter text given by the client
+ * @return <code>true</code> if all groups were successfully filtered
+ * without asynchronous results
+ */
+ boolean filterGroups(String text) {
+ //System.out.println("FILTERING WITH TEXT: " + text);
+
+ String regExFilter = toPatternString(text);
+ Pattern pattern = regExFilter != null ? Pattern.compile(regExFilter) : ANY;
+
+ this.currentFilterPattern = pattern;
+ final boolean[] changed = new boolean[] { false };
+ boolean filteringComplete = true;
+
+ ViewerFilter filter = null;
+ if (regExFilter != null)
+ filter = new SymbolItemFilter(regExFilter, pattern);
+
+ Control[] grps = c.getChildren();
+ for (Control ctrl : grps) {
+ final PGroup grp = (PGroup) ctrl;
+ if (grp.isDisposed())
+ continue;
+ Boolean contentsChanged = filterGroup(grp, filter);
+ if (contentsChanged == null)
+ filteringComplete = false;
+ else
+ changed[0] = contentsChanged;
+ }
+
+ ThreadUtils.asyncExec(swtThread, new Runnable() {
+ @Override
+ public void run() {
+ if (c.isDisposed())
+ return;
+ if (changed[0]) {
+ c.layout(true);
+ syncRefreshScrolledComposite();
+ }
+ }
+ });
+
+ return filteringComplete;
+ }
+
+ static boolean objectEquals(Object o1, Object o2) {
+ if (o1==o2) return true;
+ if (o1==null && o2==null) return true;
+ if (o1==null || o2==null) return false;
+ return o1.equals(o2);
+ }
+
+ /**
+ * @param grp
+ * @return <code>true</code> if the filtering caused changes in the group,
+ * <code>false</code> if not, and <code>null</code> if filtering
+ * could not be performed yet, meaning results need to be asked
+ * later
+ */
+ private Boolean filterGroup(PGroup grp, ViewerFilter filter) {
+ boolean changed = false;
+ GalleryViewer viewer = initializeGroup(grp);
+ if (viewer == null)
+ return null;
+
+ ViewerFilter lastFilter = viewer.getFilter();
+
+ boolean groupFiltered = Boolean.TRUE.equals(grp.getData(KEY_GROUP_FILTERED));
+ boolean userExpanded = Boolean.TRUE.equals(grp.getData(KEY_USER_EXPANDED));
+ final boolean expanded = grp.getExpanded();
+ final boolean visible = grp.getVisible();
+ final boolean filterChanged = !objectEquals(filter, lastFilter);
+
+ // Find out how much data would be shown with the new filter.
+ viewer.setFilter(filter);
+ Object[] elements = viewer.getFilteredElements();
+
+ boolean shouldBeVisible = !groupFiltered && elements.length > 0;
+ boolean shouldBeExpanded = shouldBeVisible && (filter != null || userExpanded);
+
+// System.out.format("%40s: visible/should be = %5s %5s, expanded/user expanded/should be = %5s %5s %5s\n",
+// grp.getText(),
+// String.valueOf(visible),
+// String.valueOf(shouldBeVisible),
+// String.valueOf(expanded),
+// String.valueOf(userExpanded),
+// String.valueOf(shouldBeExpanded));
+
+ if (filterChanged || visible != shouldBeVisible || expanded != shouldBeExpanded) {
+ changed = true;
+
+ if (shouldBeVisible == userExpanded) {
+ if (expanded != shouldBeExpanded)
+ setGroupExpandedWithoutNotification(grp, shouldBeExpanded);
+ setGroupVisible(grp, shouldBeVisible);
+ } else {
+ if (filter != null) {
+ if (shouldBeVisible) {
+ // The user has not expanded this group but the group contains
+ // stuff that matches the non-empty filter => show the group.
+ setGroupExpandedWithoutNotification(grp, true);
+ setGroupVisible(grp, true);
+ } else {
+ // The user has expanded this group but it does not contain items
+ // should should be shown with the current non-empty filter => hide the group.
+ setGroupExpandedWithoutNotification(grp, true);
+ setGroupVisible(grp, false);
+ }
+ } else {
+ // All groups should be visible. Some should be expanded and others not.
+ if (expanded != userExpanded)
+ setGroupExpandedWithoutNotification(grp, userExpanded);
+ if (!visible)
+ setGroupVisible(grp, true);
+ }
+ }
+
+ if (shouldBeExpanded) {
+ viewer.refreshWithContent(elements);
+ }
+ }
+
+// String label = grp.getText();
+// Matcher m = pattern.matcher(label.toLowerCase());
+// boolean visible = m.matches();
+// if (visible != grp.getVisible()) {
+// changed = true;
+// setGroupVisible(grp, visible);
+// }
+
+ return changed;
+ }
+
+ void setGroupExpandedWithoutNotification(PGroup grp, boolean expanded) {
+ // Ok, don't need to remove/add expand listener, PGroup will not notify
+ // listeners when setExpanded is invoked.
+ //grp.removeExpandListener(groupExpandListener);
+ grp.setExpanded(expanded);
+ //grp.addExpandListener(groupExpandListener);
+ }
+
+ void setGroupVisible(PGroup group, boolean visible) {
+ GridData gd = (GridData) group.getLayoutData();
+ gd.exclude = !visible;
+ group.setVisible(visible);
+ }
+
+ boolean isGroupFiltered(String label) {
+ return !currentFilterPattern.matcher(label.toLowerCase()).matches();
+ }
+
+ class DragSourceParticipant extends AbstractDiagramParticipant implements IDragSourceParticipant {
+ @Reference Selection selection;
+ @Dependency PointerInteractor pi;
+ @Dependency TransformUtil util;
+ @Dependency PickContext pickContext;
+
+ @Override
+ public int canDrag(MouseDragBegin me) {
+ if (me.button != MouseEvent.LEFT_BUTTON) return 0;
+ if (getHint(Hints.KEY_TOOL) != Hints.POINTERTOOL) return 0;
+ assertDependencies();
+
+ PickRequest req = new PickRequest(me.startCanvasPos);
+ req.pickPolicy = PickRequest.PickPolicy.PICK_INTERSECTING_OBJECTS;
+ List<IElement> picks = new ArrayList<IElement>();
+ pickContext.pick(diagram, req, picks);
+ Set<IElement> sel = selection.getSelection(me.mouseId);
+
+ if (Collections.disjoint(sel, picks)) return 0;
+ // Box Select
+ return DnDConstants.ACTION_LINK;
+ }
+
+ @Override
+ public Transferable dragStart(DragGestureEvent e) {
+ AWTChassis chassis = (AWTChassis) e.getComponent();
+ ICanvasContext cc = chassis.getCanvasContext();
+ Selection sel = cc.getSingleItem(Selection.class);
+
+ Set<IElement> ss = sel.getSelection(0);
+ if (ss.isEmpty()) return null;
+ Object[] res = new Object[ss.size()];
+ int index = 0;
+ for (IElement ee : ss)
+ res[index++] = ee.getHint(ElementHints.KEY_OBJECT);
+
+ ISelection object = new StructuredSelection(res);
+
+ return new LocalObjectTransferable(object);
+ }
+
+ @Override
+ public int getAllowedOps() {
+ return DnDConstants.ACTION_COPY;
+ }
+ @Override
+ public void dragDropEnd(DragSourceDropEvent dsde) {
+// System.out.println("dragDropEnd: " + dsde);
+ LocalObjectTransfer.getTransfer().clear();
+ }
+ @Override
+ public void dragEnter(DragSourceDragEvent dsde) {
+ }
+ @Override
+ public void dragExit(DragSourceEvent dse) {
+ }
+ @Override
+ public void dragOver(DragSourceDragEvent dsde) {
+ }
+ @Override
+ public void dropActionChanged(DragSourceDragEvent dsde) {
+ }
+ }
+
+ ExpandListener groupExpandListener = new ExpandListener() {
+ @Override
+ public void itemCollapsed(ExpandEvent e) {
+ final PGroup group = (PGroup) e.widget;
+ group.setData(KEY_USER_EXPANDED, Boolean.FALSE);
+ //System.out.println("item collapsed: " + group + ", " + sc.getClientArea());
+ refreshScrolledComposite();
+ }
+ @Override
+ public void itemExpanded(ExpandEvent e) {
+ final PGroup group = (PGroup) e.widget;
+ group.setData(KEY_USER_EXPANDED, Boolean.TRUE);
+ //System.out.println("item expanded: " + group + ", " + sc.getClientArea());
+ final GalleryViewer viewer = initializeGroup(group);
+ if (viewer == null)
+ return;
+ ThreadUtils.asyncExec(swtThread, new Runnable() {
+ @Override
+ public void run() {
+ viewer.refresh();
+ refreshScrolledComposite();
+ }
+ });
+ }
+ };
+
+ @Override
+ public void setFocus() {
+ c.setFocus();
+ }
+
+ public boolean isDefaultExpanded() {
+ return defaultExpanded;
+ }
+
+ public void setDefaultExpanded(boolean defaultExpanded) {
+ this.defaultExpanded = defaultExpanded;
+ }
+
+ Runnable disposer(final Widget w) {
+ return new Runnable() {
+ @Override
+ public void run() {
+ if (w.isDisposed())
+ return;
+ w.dispose();
+ }
+ };
+ }
+
+ void contributeActions() {
+ IToolBarManager toolbar = getViewSite().getActionBars().getToolBarManager();
+ toolbar.add(new Action("Collapse All",
+ BundleUtils.getImageDescriptorFromPlugin(Activator.PLUGIN_ID, "icons/collapseall.gif")) {
+ @Override
+ public void run() {
+ setAllExpandedStates(false);
+ }
+ });
+ toolbar.add(new Action("Expand All",
+ BundleUtils.getImageDescriptorFromPlugin(Activator.PLUGIN_ID, "icons/expandall.gif")) {
+ @Override
+ public void run() {
+ setAllExpandedStates(true);
+ }
+ });
+ toolbar.add(new Action("Configure Filters",
+ BundleUtils.getImageDescriptorFromPlugin(Activator.PLUGIN_ID, "icons/filter_ps.gif")) {
+ @Override
+ public void run() {
+ FilterConfiguration clone = new FilterConfiguration(config);
+ FilterDialog fd = new FilterDialog(getViewSite().getShell(), Activator.getDefault().getDialogSettings(), clone);
+ int result = fd.open();
+ if (result != Window.OK)
+ return;
+
+ updateFilterConfiguration(clone);
+ applyGroupFilters();
+
+ try {
+ savePreferences();
+ } catch (BackingStoreException e) {
+ ExceptionUtils.logAndShowError(e);
+ }
+ }
+ });
+ }
+
+ void setAllExpandedStates(boolean targetState) {
+ Boolean targetStateObj = Boolean.valueOf(targetState);
+ boolean changed = false;
+ setDefaultExpanded(targetState);
+ Control[] grps = c.getChildren();
+ //for (final PGroup grp : groups.values().toArray(new PGroup[0])) {
+ for (Control control : grps) {
+ final PGroup grp = (PGroup) control;
+ grp.setData(KEY_USER_EXPANDED, targetStateObj);
+ if (!grp.isDisposed() && grp.getExpanded() != targetState && grp.getVisible()) {
+ final GalleryViewer viewer = initializeGroup(grp);
+ setGroupExpandedWithoutNotification(grp, targetState);
+ ThreadUtils.asyncExec(swtThread, new Runnable() {
+ @Override
+ public void run() {
+ if (!grp.isDisposed()) {
+ if (viewer != null)
+ viewer.refresh();
+ refreshScrolledComposite();
+ }
+ }
+ });
+ changed = true;
+ }
+ }
+ if (changed)
+ refreshScrolledComposite();
+ }
+
+ class ImageLoader implements Runnable {
+
+ private final ImageProxy imageProxy;
+ private final ISymbolItem item;
+
+ public ImageLoader(ImageProxy imageProxy, ISymbolItem item) {
+ this.imageProxy = imageProxy;
+ this.item = item;
+ }
+
+ @Override
+ public void run() {
+ ThreadUtils.getBlockingWorkExecutor().execute(new Runnable() {
+ @Override
+ public void run() {
+ runBlocking();
+ }
+ });
+ }
+
+ private void runBlocking() {
+ try {
+ IHintObservable hints = null;
+ ISymbolGroup group = item.getGroup();
+ if (group == null)
+ throw new ProvisionException("No ISymbolGroup available for ISymbolItem " + item);
+
+ GalleryViewer viewer = groupViewers.get(group);
+ if (viewer == null) {
+ // This is normal if this composite has been disposed while these are being ran.
+ //throw new ProvisionException("No GalleryViewer available ISymbolGroup " + group);
+ imageProxy.setSource(DefaultImages.UNKNOWN2.get());
+ return;
+ }
+
+ hints = viewer.getDiagram();
+ if (hints == null)
+ throw new ProvisionException("No diagram available for GalleryViewer of group " + group);
+
+ ElementClass ec = item.getElementClass(hints);
+ StaticSymbol ss = ec.getSingleItem(StaticSymbol.class);
+ Image source = ss == null ? DefaultImages.UNKNOWN2.get() : ss.getImage();
+ imageProxy.setSource(source);
+ } catch (ProvisionException e) {
+ ExceptionUtils.logWarning("Failed to provide element class for symbol item " + item, e);
+ imageProxy.setSource(DefaultImages.ERROR_DECORATOR.get());
+ } catch (Exception e) {
+ ExceptionUtils.logError(e);
+ imageProxy.setSource(DefaultImages.ERROR_DECORATOR.get());
+ } finally {
+ }
+ }
+ }
+
+ public FilterArea getFilterArea() {
+ return filter;
+ }
+
+ Runnable filterActivator = new Runnable() {
+ @Override
+ public void run() {
+ filter.focus();
+ }
+ };
+ Listener filterActivationListener = new Listener() {
+ @Override
+ public void handleEvent(Event event) {
+ //System.out.println("event: " + event);
+ filterActivator.run();
+ }
+ };
+
+ ISymbolGroupListener groupListener = new ISymbolGroupListener() {
+ @Override
+ public void itemsChanged(ISymbolGroup group) {
+ GalleryViewer viewer = groupViewers.get(group);
+ if (viewer != null) {
+ ISymbolItem[] input = group.getItems();
+ viewer.setInput(input);
+ }
+ }
+ };
+
+ @Override
+ @SuppressWarnings("rawtypes")
+ public Object getAdapter(Class adapter) {
+ // For supporting Scene Graph viewer
+ if (adapter == INode[].class) {
+ List<INode> result = new ArrayList<INode>(groupViewers.size());
+ for (GalleryViewer viewer : groupViewers.values()) {
+ result.add(viewer.getCanvasContext().getSceneGraph());
+ }
+ return result.toArray(new INode[result.size()]);
+ }
+ return super.getAdapter(adapter);
+ }
+
+}