| /******************************************************************************* |
| * Copyright (c) 2000, 2007 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.ui.externaltools.internal.ui; |
| |
| |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.eclipse.jface.viewers.DoubleClickEvent; |
| import org.eclipse.jface.viewers.IDoubleClickListener; |
| import org.eclipse.jface.viewers.ILabelProvider; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.ISelectionChangedListener; |
| import org.eclipse.jface.viewers.IStructuredContentProvider; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.jface.viewers.ITreeContentProvider; |
| import org.eclipse.jface.viewers.SelectionChangedEvent; |
| import org.eclipse.jface.viewers.StructuredSelection; |
| import org.eclipse.jface.viewers.TableViewer; |
| import org.eclipse.jface.viewers.TreeViewer; |
| import org.eclipse.jface.viewers.ViewerComparator; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.layout.GridData; |
| import org.eclipse.swt.layout.GridLayout; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Table; |
| import org.eclipse.swt.widgets.Tree; |
| import org.eclipse.ui.views.navigator.ResourceComparator; |
| |
| /** |
| * This class was derived from org.eclipse.ui.internal.misc.CheckboxTreeAndListGroup |
| * |
| */ |
| public class TreeAndListGroup implements ISelectionChangedListener { |
| private Object root; |
| private Object currentTreeSelection; |
| private List selectionChangedListeners = new ArrayList(); |
| private List doubleClickListeners= new ArrayList(); |
| |
| private ITreeContentProvider treeContentProvider; |
| private IStructuredContentProvider listContentProvider; |
| private ILabelProvider treeLabelProvider; |
| private ILabelProvider listLabelProvider; |
| |
| // widgets |
| private TreeViewer treeViewer; |
| private TableViewer listViewer; |
| private boolean allowMultiselection= false; |
| |
| /** |
| * Create an instance of this class. Use this constructor if you wish to specify |
| * the width and/or height of the combined widget (to only hardcode one of the |
| * sizing dimensions, specify the other dimension's value as -1) |
| * |
| * @param parent org.eclipse.swt.widgets.Composite |
| * @param style int |
| * @param rootObject java.lang.Object |
| * @param width int |
| * @param height int |
| * @param allowMultiselection Whether to allow multi-selection in the list viewer. |
| */ |
| public TreeAndListGroup(Composite parent, Object rootObject, ITreeContentProvider treeContentProvider, ILabelProvider treeLabelProvider, IStructuredContentProvider listContentProvider, ILabelProvider listLabelProvider, int style, int width, int height, boolean allowMultiselection) { |
| |
| root = rootObject; |
| this.treeContentProvider = treeContentProvider; |
| this.listContentProvider = listContentProvider; |
| this.treeLabelProvider = treeLabelProvider; |
| this.listLabelProvider = listLabelProvider; |
| this.allowMultiselection= allowMultiselection; |
| createContents(parent, width, height, style); |
| } |
| /** |
| * This method must be called just before this window becomes visible. |
| */ |
| public void aboutToOpen() { |
| currentTreeSelection = null; |
| |
| //select the first element in the list |
| Object[] elements = treeContentProvider.getElements(root); |
| Object primary = elements.length > 0 ? elements[0] : null; |
| if (primary != null) { |
| treeViewer.setSelection(new StructuredSelection(primary)); |
| } |
| treeViewer.getControl().setFocus(); |
| } |
| /** |
| * Add the passed listener to collection of clients |
| * that listen for changes to list viewer selection state |
| * |
| * @param listener ISelectionChangedListener |
| */ |
| public void addSelectionChangedListener(ISelectionChangedListener listener) { |
| selectionChangedListeners.add(listener); |
| } |
| |
| /** |
| * Add the given listener to the collection of clients that listen to |
| * double-click events in the list viewer |
| * |
| * @param listener IDoubleClickListener |
| */ |
| public void addDoubleClickListener(IDoubleClickListener listener) { |
| doubleClickListeners.add(listener); |
| } |
| |
| /** |
| * Notify all selection listeners that a selection has occurred in the list |
| * viewer |
| */ |
| protected void notifySelectionListeners(SelectionChangedEvent event) { |
| Iterator iter = selectionChangedListeners.iterator(); |
| while (iter.hasNext()) { |
| ((ISelectionChangedListener) iter.next()).selectionChanged(event); |
| } |
| } |
| |
| /** |
| * Notify all double click listeners that a double click event has occurred |
| * in the list viewer |
| */ |
| protected void notifyDoubleClickListeners(DoubleClickEvent event) { |
| Iterator iter= doubleClickListeners.iterator(); |
| while (iter.hasNext()) { |
| ((IDoubleClickListener) iter.next()).doubleClick(event); |
| } |
| } |
| |
| /** |
| * Lay out and initialize self's visual components. |
| * |
| * @param parent org.eclipse.swt.widgets.Composite |
| * @param width int |
| * @param height int |
| */ |
| protected void createContents(Composite parent, int width, int height, int style) { |
| // group pane |
| Composite composite = new Composite(parent, style); |
| composite.setFont(parent.getFont()); |
| GridLayout layout = new GridLayout(); |
| layout.numColumns = 2; |
| layout.makeColumnsEqualWidth = true; |
| layout.marginHeight = 0; |
| layout.marginWidth = 0; |
| composite.setLayout(layout); |
| composite.setLayoutData(new GridData(GridData.FILL_BOTH)); |
| |
| createTreeViewer(composite, width / 2, height); |
| createListViewer(composite, width / 2, height); |
| |
| initialize(); |
| } |
| /** |
| * Create this group's list viewer. |
| */ |
| protected void createListViewer(Composite parent, int width, int height) { |
| int style; |
| if (allowMultiselection) { |
| style= SWT.MULTI; |
| } else { |
| style= SWT.SINGLE; |
| } |
| listViewer = new TableViewer(parent, SWT.BORDER | style); |
| GridData data = new GridData(GridData.FILL_BOTH); |
| data.widthHint = width; |
| data.heightHint = height; |
| listViewer.getTable().setLayoutData(data); |
| listViewer.getTable().setFont(parent.getFont()); |
| listViewer.setContentProvider(listContentProvider); |
| listViewer.setLabelProvider(listLabelProvider); |
| listViewer.setComparator(new ResourceComparator(ResourceComparator.NAME)); |
| listViewer.addSelectionChangedListener(new ISelectionChangedListener() { |
| public void selectionChanged(SelectionChangedEvent event) { |
| notifySelectionListeners(event); |
| } |
| }); |
| listViewer.addDoubleClickListener(new IDoubleClickListener() { |
| public void doubleClick(DoubleClickEvent event) { |
| if (!event.getSelection().isEmpty()) { |
| notifyDoubleClickListeners(event); |
| } |
| } |
| }); |
| } |
| /** |
| * Create this group's tree viewer. |
| */ |
| protected void createTreeViewer(Composite parent, int width, int height) { |
| Tree tree = new Tree(parent, SWT.BORDER); |
| GridData data = new GridData(GridData.FILL_BOTH); |
| data.widthHint = width; |
| data.heightHint = height; |
| tree.setLayoutData(data); |
| tree.setFont(parent.getFont()); |
| |
| treeViewer = new TreeViewer(tree); |
| treeViewer.setContentProvider(treeContentProvider); |
| treeViewer.setLabelProvider(treeLabelProvider); |
| treeViewer.setComparator(new ResourceComparator(ResourceComparator.NAME)); |
| treeViewer.addSelectionChangedListener(this); |
| } |
| |
| public Table getListTable() { |
| return listViewer.getTable(); |
| } |
| |
| public IStructuredSelection getListTableSelection() { |
| ISelection selection= this.listViewer.getSelection(); |
| if (selection instanceof IStructuredSelection) { |
| return (IStructuredSelection)selection; |
| } |
| return StructuredSelection.EMPTY; |
| } |
| |
| protected void initialListItem(Object element) { |
| Object parent = treeContentProvider.getParent(element); |
| selectAndRevealFolder(parent); |
| } |
| |
| public void selectAndRevealFolder(Object treeElement) { |
| treeViewer.reveal(treeElement); |
| IStructuredSelection selection = new StructuredSelection(treeElement); |
| treeViewer.setSelection(selection); |
| } |
| |
| public void selectAndRevealFile(Object treeElement) { |
| listViewer.reveal(treeElement); |
| IStructuredSelection selection = new StructuredSelection(treeElement); |
| listViewer.setSelection(selection); |
| } |
| |
| /** |
| * Initialize this group's viewers after they have been laid out. |
| */ |
| protected void initialize() { |
| treeViewer.setInput(root); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.viewers.ISelectionChangedListener#selectionChanged(org.eclipse.jface.viewers.SelectionChangedEvent) |
| */ |
| public void selectionChanged(SelectionChangedEvent event) { |
| IStructuredSelection selection = (IStructuredSelection) event.getSelection(); |
| Object selectedElement = selection.getFirstElement(); |
| if (selectedElement == null) { |
| currentTreeSelection = null; |
| listViewer.setInput(currentTreeSelection); |
| return; |
| } |
| |
| // ie.- if not an item deselection |
| if (selectedElement != currentTreeSelection) { |
| listViewer.setInput(selectedElement); |
| } |
| |
| currentTreeSelection = selectedElement; |
| } |
| /** |
| * Set the list viewer's providers to those passed |
| * |
| * @param contentProvider ITreeContentProvider |
| * @param labelProvider ILabelProvider |
| */ |
| public void setListProviders(IStructuredContentProvider contentProvider, ILabelProvider labelProvider) { |
| listViewer.setContentProvider(contentProvider); |
| listViewer.setLabelProvider(labelProvider); |
| } |
| /** |
| * Set the sorter that is to be applied to self's list viewer |
| */ |
| public void setListSorter(ViewerComparator comparator) { |
| listViewer.setComparator(comparator); |
| } |
| /** |
| * Set the root of the widget to be new Root. Regenerate all of the tables and lists from this |
| * value. |
| * @param newRoot |
| */ |
| public void setRoot(Object newRoot) { |
| root = newRoot; |
| initialize(); |
| } |
| |
| /** |
| * Set the tree viewer's providers to those passed |
| * |
| * @param contentProvider ITreeContentProvider |
| * @param labelProvider ILabelProvider |
| */ |
| public void setTreeProviders(ITreeContentProvider contentProvider, ILabelProvider labelProvider) { |
| treeViewer.setContentProvider(contentProvider); |
| treeViewer.setLabelProvider(labelProvider); |
| } |
| /** |
| * Set the comparator that is to be applied to self's tree viewer |
| */ |
| public void setTreeComparator(ViewerComparator comparator) { |
| treeViewer.setComparator(comparator); |
| } |
| |
| /** |
| * Set the focus on to the list widget. |
| */ |
| public void setFocus() { |
| treeViewer.getTree().setFocus(); |
| } |
| } |