import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.resource.LocalResourceManager;
import org.eclipse.jface.resource.ResourceManager;
+import org.eclipse.jface.util.OpenStrategy;
import org.eclipse.jface.viewers.IPostSelectionProvider;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.swt.events.KeyListener;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.events.MouseListener;
-import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Font;
public static final int DEFAULT_MAX_CHILDREN = 1000;
- private static final long POST_SELECTION_DELAY = 300;
-
- /**
- * The time in milliseconds that must elapse between consecutive
- * {@link Tree} {@link SelectionListener#widgetSelected(SelectionEvent)}
- * invocations in order for this class to construct a new selection.
- *
- * <p>
- * This is done because selection construction can be very expensive as the
- * selected set grows larger when the user is pressing shift+arrow keys.
- * GraphExplorerImpl will naturally listen to all changes in the tree
- * selection, but as an optimization will not construct new
- * StructuredSelection instances for every selection change event. A new
- * selection will be constructed and set only if the selection hasn't
- * changed for the amount of milliseconds specified by this constant.
- */
- private static final long SELECTION_CHANGE_QUIET_TIME = 150;
-
private final IThreadWorkQueue thread;
/**
Tree tree;
@SuppressWarnings({ "rawtypes" })
- final HashMap<CacheKey<?>, NodeQueryProcessor> processors = new HashMap<CacheKey<?>, NodeQueryProcessor>();
+ final HashMap<CacheKey<?>, NodeQueryProcessor> processors = new HashMap<>();
@SuppressWarnings({ "rawtypes" })
- final HashMap<Object, PrimitiveQueryProcessor> primitiveProcessors = new HashMap<Object, PrimitiveQueryProcessor>();
+ final HashMap<Object, PrimitiveQueryProcessor> primitiveProcessors = new HashMap<>();
@SuppressWarnings({ "rawtypes" })
- final HashMap<Class, DataSource> dataSources = new HashMap<Class, DataSource>();
+ final HashMap<Class, DataSource> dataSources = new HashMap<>();
class GraphExplorerContext extends AbstractDisposable implements IGraphExplorerContext {
// This is for query debugging only.
* <code>null</code> there's nothing scheduled yet in which case
* scheduling can commence. Otherwise the update should be skipped.
*/
- AtomicReference<Runnable> currentQueryUpdater = new AtomicReference<Runnable>();
+ AtomicReference<Runnable> currentQueryUpdater = new AtomicReference<>();
/**
* Keeps track of nodes that have already been auto-expanded. After
* expanded state after that. This makes it possible for the user to
* close auto-expanded nodes.
*/
- Map<NodeContext, Boolean> autoExpanded = new WeakHashMap<NodeContext, Boolean>();
+ Map<NodeContext, Boolean> autoExpanded = new WeakHashMap<>();
@Override
GraphExplorerContext explorerContext = new GraphExplorerContext();
- HashSet<TreeItem> pendingItems = new HashSet<TreeItem>();
+ HashSet<TreeItem> pendingItems = new HashSet<>();
boolean updating = false;
boolean pendingRoot = false;
* Access this map only in the SWT thread to keep it thread-safe.
* </p>
*/
- BijectionMap<NodeContext, TreeItem> contextToItem = new BijectionMap<NodeContext, TreeItem>();
+ BijectionMap<NodeContext, TreeItem> contextToItem = new BijectionMap<>();
/**
* Columns of the UI viewer. Use {@link #setColumns(Column[])} to
* initialize.
*/
Column[] columns = new Column[0];
- Map<String, Integer> columnKeyToIndex = new HashMap<String, Integer>();
+ Map<String, Integer> columnKeyToIndex = new HashMap<>();
boolean refreshingColumnSizes = false;
boolean columnsAreVisible = true;
/** Set to true when the Tree widget is disposed. */
private boolean disposed = false;
- private final CopyOnWriteArrayList<FocusListener> focusListeners = new CopyOnWriteArrayList<FocusListener>();
- private final CopyOnWriteArrayList<MouseListener> mouseListeners = new CopyOnWriteArrayList<MouseListener>();
- private final CopyOnWriteArrayList<KeyListener> keyListeners = new CopyOnWriteArrayList<KeyListener>();
+ private final CopyOnWriteArrayList<FocusListener> focusListeners = new CopyOnWriteArrayList<>();
+ private final CopyOnWriteArrayList<MouseListener> mouseListeners = new CopyOnWriteArrayList<>();
+ private final CopyOnWriteArrayList<KeyListener> keyListeners = new CopyOnWriteArrayList<>();
/** Selection provider */
- private GraphExplorerPostSelectionProvider postSelectionProvider = new GraphExplorerPostSelectionProvider(this);
+ private GraphExplorerPostSelectionProvider postSelectionProvider = new GraphExplorerPostSelectionProvider(this);
protected BasePostSelectionProvider selectionProvider = new BasePostSelectionProvider();
protected SelectionDataResolver selectionDataResolver;
protected SelectionFilter selectionFilter;
* item was a part of the current selection in which case the selection must
* be updated.
*/
- private final Map<TreeItem, NodeContext> selectedItems = new HashMap<TreeItem, NodeContext>();
+ private final Map<TreeItem, NodeContext> selectedItems = new HashMap<>();
/**
* TODO: specify what this is for
*/
- private final Set<NodeContext> selectionRefreshContexts = new HashSet<NodeContext>();
+ private final Set<NodeContext> selectionRefreshContexts = new HashSet<>();
/**
* If this field is non-null, it means that if {@link #setData(Event)}
*
* @see #setPendingImages(IProgressMonitor)
*/
- Map<TreeItem, ImageTask> imageTasks = new THashMap<TreeItem, ImageTask>();
+ Map<TreeItem, ImageTask> imageTasks = new THashMap<>();
/**
* A state flag indicating whether the vertical scroll bar was visible for
updateCounter = 0;
uiUpdateScheduler.schedule(this, 50, TimeUnit.MILLISECONDS);
} else {
- tree.getDisplay().asyncExec(new UpdateRunner(GraphExplorerImpl.this, GraphExplorerImpl.this.explorerContext));
+ tree.getDisplay().asyncExec(new UpdateRunner(GraphExplorerImpl.this));
}
}
* modified. These are used internally to prevent duplicate edits from being
* initiated which should always be a sensible thing to do.
*/
- private Set<NodeContext> currentlyModifiedNodes = new THashSet<NodeContext>();
+ private Set<NodeContext> currentlyModifiedNodes = new THashSet<>();
private final TreeEditor editor;
private Color invalidModificationColor = null;
// Keep track of the previous single selection to help
// decide whether to start editing a tree node on mouse
// downs or not.
- tree.addListener(SWT.Selection, new Listener() {
- @Override
- public void handleEvent(Event event) {
- TreeItem[] selection = tree.getSelection();
- if (selection.length == 1) {
- //for (TreeItem item : selection)
- // System.out.println("selection: " + item);
- previousSingleSelection = selection[0];
- } else {
- previousSingleSelection = null;
- }
+ tree.addListener(SWT.Selection, event -> {
+ TreeItem[] selection = tree.getSelection();
+ if (selection.length == 1) {
+ //for (TreeItem item : selection)
+ // System.out.println("selection: " + item);
+ previousSingleSelection = selection[0];
+ } else {
+ previousSingleSelection = null;
}
});
};
tree.addListener(SWT.MouseDown, mouseEditListener);
tree.addListener(SWT.DragDetect, mouseEditListener);
- tree.addListener(SWT.DragDetect, new Listener() {
- @Override
- public void handleEvent(Event event) {
- Point test = new Point(event.x, event.y);
- TreeItem item = tree.getItem(test);
- if(item != null) {
- for(int i=0;i<tree.getColumnCount();i++) {
- Rectangle rect = item.getBounds(i);
- if(rect.contains(test)) {
- tree.setData(KEY_DRAG_COLUMN, i);
- return;
- }
+ tree.addListener(SWT.DragDetect, event -> {
+ Point test = new Point(event.x, event.y);
+ TreeItem item = tree.getItem(test);
+ if(item != null) {
+ for(int i=0;i<tree.getColumnCount();i++) {
+ Rectangle rect = item.getBounds(i);
+ if(rect.contains(test)) {
+ tree.setData(KEY_DRAG_COLUMN, i);
+ return;
}
}
- tree.setData(KEY_DRAG_COLUMN, -1);
}
+ tree.setData(KEY_DRAG_COLUMN, -1);
});
- tree.addListener(SWT.MouseMove, new Listener() {
- @Override
- public void handleEvent(Event event) {
- Point test = new Point(event.x, event.y);
- TreeItem item = tree.getItem(test);
- if(item != null) {
- for(int i=0;i<tree.getColumnCount();i++) {
- Rectangle rect = item.getBounds(i);
- if(rect.contains(test)) {
- transientState.setActiveColumn(i);
- return;
- }
+ tree.addListener(SWT.MouseMove, event -> {
+ Point test = new Point(event.x, event.y);
+ TreeItem item = tree.getItem(test);
+ if(item != null) {
+ for(int i=0;i<tree.getColumnCount();i++) {
+ Rectangle rect = item.getBounds(i);
+ if(rect.contains(test)) {
+ transientState.setActiveColumn(i);
+ return;
}
}
- transientState.setActiveColumn(null);
}
+ transientState.setActiveColumn(null);
});
// Add focus/mouse/key listeners for supporting the respective
}
});
- // Add a tree selection listener for keeping the selection of
- // GraphExplorer's ISelectionProvider up-to-date.
- tree.addSelectionListener(new SelectionListener() {
- @Override
- public void widgetDefaultSelected(SelectionEvent e) {
- widgetSelected(e);
- }
- @Override
- public void widgetSelected(SelectionEvent e) {
- widgetSelectionChanged(false);
- }
- });
+ OpenStrategy os = new OpenStrategy(tree);
+ os.addPostSelectionListener(SelectionListener.widgetSelectedAdapter(e -> {
+ //System.out.println("OPENSTRATEGY: post selection changed: " + e);
+ resetSelection();
+ selectionProvider.firePostSelection(selectionProvider.getSelection());
+ }));
// This listener takes care of updating the set of currently selected
// TreeItem instances. This set is needed because we need to know in
});
}
- /**
- * Mod count for delaying post selection changed events.
- */
- int postSelectionModCount = 0;
-
- /**
- * Last tree selection modification time for implementing a quiet
- * time for selection changes.
- */
- long lastSelectionModTime = System.currentTimeMillis() - 10000;
-
- /**
- * Current target time for the selection to be set. Calculated
- * according to the set quiet time and last selection modification
- * time.
- */
- long selectionSetTargetTime = 0;
-
- /**
- * <code>true</code> if delayed selection runnable is current scheduled or
- * running.
- */
- boolean delayedSelectionScheduled = false;
-
- Runnable SELECTION_DELAY = new Runnable() {
- @Override
- public void run() {
- if (tree.isDisposed())
- return;
- long now = System.currentTimeMillis();
- long waitTimeLeft = selectionSetTargetTime - now;
- if (waitTimeLeft > 0) {
- // Not enough quiet time, reschedule.
- delayedSelectionScheduled = true;
- tree.getDisplay().timerExec((int) waitTimeLeft, this);
- } else {
- // Time to perform selection, stop rescheduling.
- delayedSelectionScheduled = false;
- resetSelection();
- }
- }
- };
-
- private void widgetSelectionChanged(boolean forceSelectionChange) {
- long modTime = System.currentTimeMillis();
- long delta = modTime - lastSelectionModTime;
- lastSelectionModTime = modTime;
- if (!forceSelectionChange && delta < SELECTION_CHANGE_QUIET_TIME) {
- long msToWait = SELECTION_CHANGE_QUIET_TIME - delta;
- selectionSetTargetTime = modTime + msToWait;
- if (!delayedSelectionScheduled) {
- delayedSelectionScheduled = true;
- tree.getDisplay().timerExec((int) msToWait, SELECTION_DELAY);
- }
- // Make sure that post selection change events do not fire.
- ++postSelectionModCount;
- return;
- }
-
- // Immediate selection reconstruction.
- resetSelection();
- }
-
private void resetSelection() {
final ISelection selection = getWidgetSelection();
-
- //System.out.println("resetSelection(" + postSelectionModCount + ")");
- //System.out.println(" provider selection: " + selectionProvider.getSelection());
- //System.out.println(" widget selection: " + selection);
-
+// System.out.println("resetSelection()");
+// System.out.println(" provider selection: " + selectionProvider.getSelection());
+// System.out.println(" widget selection: " + selection);
selectionProvider.setAndFireNonEqualSelection(selection);
-
- // Implement deferred firing of post selection events
- final int count = ++postSelectionModCount;
- //System.out.println("[" + System.currentTimeMillis() + "] scheduling postSelectionChanged " + count + ": " + selection);
- ThreadUtils.getNonBlockingWorkExecutor().schedule(new Runnable() {
- @Override
- public void run() {
- int newCount = postSelectionModCount;
- // Don't publish selection yet, there's another change incoming.
- //System.out.println("[" + System.currentTimeMillis() + "] checking post selection publish: " + count + " vs. " + newCount + ": " + selection);
- if (newCount != count)
- return;
- //System.out.println("[" + System.currentTimeMillis() + "] " + count + " count equals, firing post selection listeners: " + selection);
-
- if (tree.isDisposed())
- return;
-
- //System.out.println("scheduling fire post selection changed: " + selection);
- tree.getDisplay().asyncExec(new Runnable() {
- @Override
- public void run() {
- if (tree.isDisposed() || selectionProvider == null)
- return;
- //System.out.println("firing post selection changed: " + selection);
- selectionProvider.firePostSelection(selection);
- }
- });
- }
- }, POST_SELECTION_DELAY, TimeUnit.MILLISECONDS);
}
-
+
protected void setDefaultProcessors() {
// Add a simple IMAGER query processor that always returns null.
// With this processor no images will ever be shown.
// System.out.println("MODCOUNT: " + modCount + " vs. " + count);
if (modCount != count)
return;
- widgetSelectionChanged(true);
+ resetSelection();
}
});
}
Code Review / simantics / platform.git / blobdiff