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Diffstat (limited to 'org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/views/RemoteTreeViewer.java')
| -rw-r--r-- | org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/views/RemoteTreeViewer.java | 609 |
1 files changed, 0 insertions, 609 deletions
diff --git a/org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/views/RemoteTreeViewer.java b/org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/views/RemoteTreeViewer.java deleted file mode 100644 index 70fb9cccd..000000000 --- a/org.eclipse.debug.ui/ui/org/eclipse/debug/internal/ui/views/RemoteTreeViewer.java +++ /dev/null @@ -1,609 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2005 IBM Corporation and others. - * 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: - * IBM Corporation - initial API and implementation - *******************************************************************************/ -package org.eclipse.debug.internal.ui.views; - -import java.util.ArrayList; -import java.util.Iterator; -import java.util.List; - -import org.eclipse.core.runtime.IAdaptable; -import org.eclipse.core.runtime.IProgressMonitor; -import org.eclipse.core.runtime.IStatus; -import org.eclipse.core.runtime.Status; -import org.eclipse.core.runtime.jobs.Job; -import org.eclipse.debug.core.ILaunch; -import org.eclipse.jface.util.Assert; -import org.eclipse.jface.viewers.IStructuredSelection; -import org.eclipse.jface.viewers.TreeViewer; -import org.eclipse.jface.viewers.ViewerSorter; -import org.eclipse.swt.SWT; -import org.eclipse.swt.events.DisposeEvent; -import org.eclipse.swt.events.DisposeListener; -import org.eclipse.swt.widgets.Composite; -import org.eclipse.swt.widgets.Item; -import org.eclipse.swt.widgets.Tree; -import org.eclipse.swt.widgets.TreeItem; -import org.eclipse.swt.widgets.Widget; -import org.eclipse.ui.model.IWorkbenchAdapter; -import org.eclipse.ui.progress.UIJob; - -/** - * A tree viewer that displays remote content. Content is retrieved in a background - * job, and the viewer is updated incrementally on a refresh. - * - * @since 3.1 - */ -public class RemoteTreeViewer extends TreeViewer { - - private ExpansionJob fExpansionJob = null; - private SelectionJob fSelectionJob = null; - - - class ExpansionJob extends UIJob { - - private Object element; - private List parents = new ArrayList(); // top down - - /** - * Constucts a job to expand the given element. - * - * @param target the element to expand - */ - public ExpansionJob() { - super(DebugUIViewsMessages.LaunchViewer_1); - setPriority(Job.INTERACTIVE); - setSystem(true); - } - - /* (non-Javadoc) - * @see org.eclipse.ui.progress.UIJob#runInUIThread(org.eclipse.core.runtime.IProgressMonitor) - */ - public IStatus runInUIThread(IProgressMonitor monitor) { - if (getControl().isDisposed() || element == null) { - return Status.OK_STATUS; - } - synchronized (RemoteTreeViewer.this) { - boolean allParentsExpanded = true; - Iterator iterator = parents.iterator(); - while (iterator.hasNext() && !monitor.isCanceled()) { - Object parent = iterator.next(); - Widget item = findItem(parent); - if (item != null) { - expandToLevel(parent, 1); - } else { - allParentsExpanded = false; - break; - } - } - if (allParentsExpanded) { - Widget item = findItem(element); - if (item != null) { - if (isExpandable(element)) { - expandToLevel(element, 1); - } - element = null; - parents.clear(); - return Status.OK_STATUS; - } - } - return Status.OK_STATUS; - } - } - - public void validate(Object object) { - if (element != null) { - if (element.equals(object) || parents.contains(object)) { - cancel(); - element = null; - } - } - } - - public void setDeferredExpansion(Object toExpand) { - element = toExpand; - parents.clear(); - addAllParents(parents, element); - } - - } - - class SelectionJob extends UIJob { - - private IStructuredSelection selection; - private Object first; - private List parents = new ArrayList(); // top down - - /** - * Constucts a job to select the given element. - * - * @param target the element to select - */ - public SelectionJob() { - super(DebugUIViewsMessages.LaunchViewer_0); - setPriority(Job.INTERACTIVE); - setSystem(true); - } - - /* (non-Javadoc) - * @see org.eclipse.ui.progress.UIJob#runInUIThread(org.eclipse.core.runtime.IProgressMonitor) - */ - public IStatus runInUIThread(IProgressMonitor monitor) { - if (getControl().isDisposed() || selection == null) { - return Status.OK_STATUS; - } - synchronized (RemoteTreeViewer.this) { - boolean allParentsExpanded = true; - Iterator iterator = parents.iterator(); - while (iterator.hasNext() && !monitor.isCanceled()) { - Object parent = iterator.next(); - Widget item = findItem(parent); - if (item != null) { - expandToLevel(parent, 1); - } else { - allParentsExpanded = false; - break; - } - } - if (allParentsExpanded) { - if (findItem(first) != null) { - setSelection(selection, true); - selection = null; - first = null; - parents.clear(); - return Status.OK_STATUS; - } - } - - return Status.OK_STATUS; - } - } - - public void setDeferredSelection(IStructuredSelection sel) { - selection = sel; - first = selection.getFirstElement(); - parents.clear(); - addAllParents(parents, first); - } - - public void validate(Object object) { - if (first != null) { - if (first.equals(object) || parents.contains(object)) { - cancel(); - selection = null; - } - } - } - } - - - /** - * Constructs a remote tree viewer parented by the given composite. - * - * @param parent parent composite - */ - public RemoteTreeViewer(Composite parent) { - super(parent); - addDisposeListener(); - fExpansionJob = new ExpansionJob(); - fSelectionJob = new SelectionJob(); - } - - /** - * Constructs a remote tree viewer parented by the given composite - * with the given style. - * - * @param parent parent composite - * @param style style bits - */ - public RemoteTreeViewer(Composite parent, int style) { - super(parent, style); - addDisposeListener(); - fExpansionJob = new ExpansionJob(); - fSelectionJob = new SelectionJob(); - } - - /** - * Constructs a remote tree viewer with the given tree. - * - * @param tree tree widget - */ - public RemoteTreeViewer(Tree tree) { - super(tree); - addDisposeListener(); - fExpansionJob = new ExpansionJob(); - fSelectionJob = new SelectionJob(); - } - - private void addDisposeListener() { - getControl().addDisposeListener(new DisposeListener() { - public void widgetDisposed(DisposeEvent e) { - cancelJobs(); - } - }); - } - - protected void runDeferredUpdates() { - if (fExpansionJob != null) { - fExpansionJob.schedule(); - } - if (fSelectionJob != null) { - fSelectionJob.schedule(); - } - } - - /** - * The given element is being removed from the tree. Cancel - * any deferred updates for the element. - * - * @param element - */ - protected void validateDeferredUpdates(Object element) { - if (element != null) { - if (fExpansionJob != null) { - fExpansionJob.validate(element); - } - if (fSelectionJob != null) { - fSelectionJob.validate(element); - } - } - } - - /* (non-Javadoc) - * @see org.eclipse.jface.viewers.AbstractTreeViewer#add(java.lang.Object, java.lang.Object) - */ - public synchronized void add(Object parentElement, Object childElement) { - super.add(parentElement, childElement); - runDeferredUpdates(); - } - - /* (non-Javadoc) - * @see org.eclipse.jface.viewers.AbstractTreeViewer#add(java.lang.Object, java.lang.Object[]) - */ - public synchronized void add(Object parentElement, Object[] childElements) { - super.add(parentElement, childElements); - runDeferredUpdates(); - } - - /* (non-Javadoc) - * @see org.eclipse.jface.viewers.AbstractTreeViewer#remove(java.lang.Object) - */ - public synchronized void remove(Object element) { - validateDeferredUpdates(element); - super.remove(element); - } - - /* (non-Javadoc) - * @see org.eclipse.jface.viewers.AbstractTreeViewer#remove(java.lang.Object[]) - */ - public synchronized void remove(Object[] elements) { - for (int i = 0; i < elements.length; i++) { - validateDeferredUpdates(elements[i]); - } - super.remove(elements); - } - - /** - * Cancels any deferred updates currently scheduled/running. - */ - public void cancelJobs() { - cancel(fSelectionJob); - cancel(fExpansionJob); - } - - public synchronized void deferExpansion(Object element) { - TreeItem treeItem = (TreeItem) findItem(element); - if (treeItem == null) { - fExpansionJob.setDeferredExpansion(element); - fExpansionJob.schedule(); - } else { - if (!getExpanded(treeItem)) { - fExpansionJob.setDeferredExpansion(element); - fExpansionJob.schedule(); - } - } - } - - public synchronized void deferSelection(IStructuredSelection selection) { - if (fSelectionJob == null) { - fSelectionJob = new SelectionJob(); - } - - fSelectionJob.setDeferredSelection(selection); - fSelectionJob.schedule(); - } - - public IStructuredSelection getDeferredSelection() { - if (fSelectionJob != null) { - return fSelectionJob.selection; - } - return null; - } - - private void cancel(Job job) { - if (job != null) { - job.cancel(); - } - } - - private void addAllParents(List list, Object element) { - if (element instanceof IAdaptable) { - IAdaptable adaptable = (IAdaptable) element; - IWorkbenchAdapter adapter = (IWorkbenchAdapter) adaptable.getAdapter(IWorkbenchAdapter.class); - if (adapter != null) { - Object parent = adapter.getParent(element); - if (parent != null) { - list.add(0, parent); - if (!(parent instanceof ILaunch)) - addAllParents(list, parent); - } - } - } - } - - public Object[] filter(Object[] elements) { - return super.filter(elements); - } - - public Object[] getCurrentChildren(Object parent) { - Widget widget = findItem(parent); - if (widget != null) { - Item[] items = getChildren(widget); - Object[] children = new Object[items.length]; - for (int i = 0; i < children.length; i++) { - Object data = items[i].getData(); - if (data == null) { - return null; - } - children[i] = data; - } - return children; - } - return null; - } - - public synchronized void prune(final Object parent, final int offset) { - Widget widget = findItem(parent); - if (widget != null) { - final Item[] currentChildren = getChildren(widget); - if (offset < currentChildren.length) { - preservingSelection(new Runnable() { - public void run() { - for (int i = offset; i < currentChildren.length; i++) { - if (currentChildren[i].getData() != null) { - disassociate(currentChildren[i]); - } - currentChildren[i].dispose(); - } - } - }); - } - } - } - - public synchronized void replace(final Object parent, final Object[] children, final int offset) { - preservingSelection(new Runnable() { - public void run() { - Widget[] widgets = findItems(parent); - for (int n = 0; n < widgets.length; n++) { - Widget widget = widgets[n]; - if (widget == null) { - add(parent, children); - } else { - Item[] currentChildren = getChildren(widget); - int pos = offset; - if (pos >= currentChildren.length) { - // append - add(parent, children); - } else { - // replace - for (int i = 0; i < children.length; i++) { - Object child = children[i]; - if (pos < currentChildren.length) { - // replace - Item item = currentChildren[pos]; - Object data = item.getData(); - if (!child.equals(data)) { - // no need to cancel pending updates here, the child may have shifted up/down - internalRefresh(item, child, true, true); - } else { - // If it's the same child, the label/content may still have changed - doUpdateItem(item, child); - updatePlus(item, child); - } - } else { - // add - int numLeft = children.length - i; - if (numLeft >= 1) { - Object[] others = new Object[numLeft]; - System.arraycopy(children, i, others, 0, numLeft); - internalAdd(widget, parent, others); - } - break; - } - pos++; - } - } - } - } - - runDeferredUpdates(); - } - }); - } - - protected void internalAdd(Widget widget, Object parentElement, Object[] childElements) { - - // optimization! - // if the widget is not expanded we just invalidate the subtree - if (widget instanceof Item) { - Item ti = (Item) widget; - if (!getExpanded(ti)) { - boolean needDummy = isExpandable(parentElement); - boolean haveDummy = false; - // remove all children - Item[] items = getItems(ti); - for (int i = 0; i < items.length; i++) { - if (items[i].getData() != null) { - disassociate(items[i]); - items[i].dispose(); - } else { - if (needDummy && !haveDummy) { - haveDummy = true; - } else { - items[i].dispose(); - } - } - } - // append a dummy if necessary - if (needDummy && !haveDummy) - newItem(ti, SWT.NULL, -1); - return; - } - } - - if (childElements.length > 0) { - Object[] filtered = filter(childElements); - if(getSorter() != null) - getSorter().sort(this,filtered); - createAddedElements(widget, filtered); - } - } - - - - // tree viewer hacks start here. These hacks allow us to display the same Object in a tree viewer more - // than once. Workbench does on support this (July 6, 2005) - - - private void createAddedElements(Widget widget, Object[] elements) { - - if(elements.length == 1){ - if (equals(elements[0], widget.getData())) - return; - } - - ViewerSorter sorter = getSorter (); - Item[] items = getChildren(widget); - - //As the items are sorted already we optimize for a - //start position - int lastInsertion = 0; - - //Optimize for the empty case - if(items.length == 0){ - for (int i = 0; i < elements.length; i++) { - createTreeItem(widget, elements[i], -1); - } - return; - } - - for (int i = 0; i < elements.length; i++) { - boolean newItem = true; - Object element = elements[i]; - int index; - if(sorter == null){ - index = -1; - } - else{ - lastInsertion = insertionPosition(items,sorter,lastInsertion, element); - //As we are only searching the original array we keep track of those positions only - if(lastInsertion == items.length) - index = -1; - else{//See if we should just refresh - while(lastInsertion < items.length && sorter.compare(this,element,items[lastInsertion].getData()) == 0){ - //As we cannot assume the sorter is consistent with equals() - therefore we can - // just check against the item prior to this index (if any) - if (items[lastInsertion].getData().equals(element)) { - //refresh the element in case it has new children - refresh(element); - newItem = false; - } - lastInsertion ++;//We had an insertion so increment - } - //Did we get to the end? - if(lastInsertion == items.length) - index = -1; - else - index = lastInsertion + i; //Add the index as the array is growing - } - } - if(newItem) - createTreeItem(widget, element, index); - } - } - - //copied from super class - private int insertionPosition(Item[] items, ViewerSorter sorter, int lastInsertion, Object element) { - int size = items.length; - if (sorter == null) - return size; - int min = lastInsertion, max = size - 1; - - while (min <= max) { - int mid = (min + max) / 2; - Object data = items[mid].getData(); - int compare = sorter.compare(this, data, element); - if (compare == 0) { - return mid;//Return if we already match - } - if (compare < 0) - min = mid + 1; - else - max = mid - 1; - } - return min; - } - - public void update(Object element, String[] properties) { - Assert.isNotNull(element); - Widget[] widgets = findItems(element); - for (int i = 0; i < widgets.length; i++) { - Widget widget = widgets[i]; - if (widget != null) { - internalUpdate(widget, element, properties); - } - } - } - - protected Widget[] findItems(Object target) { - List widgets = new ArrayList(); - Object root = getRoot(); - if (root != null) { - if (equals(root, target)) { - Widget widget = findItem(root); - widgets.add(widget); - } - } - Item[] children = getChildren(getControl()); - - if (children != null) { - for (int i = 0; i < children.length; i++) { - Item child = children[i]; - internalFindItems(target, child, widgets); - } - } - return (Widget[]) widgets.toArray(new Widget[widgets.size()]); - } - - private void internalFindItems(Object target, Item item, List widgets) { - if (equals(target, item.getData())) { - widgets.add(item); - } - - Item[] children = getChildren(item); - for (int i = 0; i < children.length; i++) { - Item child = children[i]; - internalFindItems(target, child, widgets); - } - } -} - - |