| /******************************************************************************* |
| * Copyright (c) 2007, 2008 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: |
| * Takashi ITOH - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.actf.visualization.gui.ui.views; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.eclipse.actf.visualization.gui.Messages; |
| import org.eclipse.actf.visualization.gui.msaa.properties.IPropertyInvoke; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.jface.viewers.TreeViewer; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.events.ControlAdapter; |
| import org.eclipse.swt.events.ControlEvent; |
| import org.eclipse.swt.events.KeyAdapter; |
| import org.eclipse.swt.events.KeyEvent; |
| import org.eclipse.swt.graphics.Rectangle; |
| import org.eclipse.swt.layout.GridData; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Tree; |
| import org.eclipse.swt.widgets.TreeColumn; |
| import org.eclipse.swt.widgets.TreeItem; |
| import org.eclipse.ui.views.properties.IPropertySource; |
| |
| |
| public class PropertyTreeViewer extends TreeViewer { |
| |
| private Map lastContents = new HashMap(); |
| |
| public PropertyTreeViewer(Composite parent, int style) { |
| this(new Tree(parent, style)); |
| } |
| |
| public PropertyTreeViewer(Composite parent) { |
| this(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER); |
| } |
| |
| public PropertyTreeViewer(Tree tree) { |
| super(tree); |
| tree.setLinesVisible(true); |
| tree.setHeaderVisible(true); |
| tree.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true)); |
| TreeColumn nameColumn = new TreeColumn(tree,SWT.NONE); |
| nameColumn.setText(Messages.getString("msaa.name")); //$NON-NLS-1$ |
| TreeColumn valueColumn = new TreeColumn(tree,SWT.NONE); |
| valueColumn.setText(Messages.getString("msaa.value")); //$NON-NLS-1$ |
| tree.addControlListener(new ControlAdapter() { |
| public void controlResized(ControlEvent e) { |
| Tree tree = getTree(); |
| Rectangle area = tree.getClientArea(); |
| TreeColumn[] columns = tree.getColumns(); |
| if (area.width > 0) { |
| columns[0].setWidth(area.width * 40 / 100); |
| columns[1].setWidth(area.width - columns[0].getWidth() - 4); |
| tree.removeControlListener(this); |
| } |
| } |
| }); |
| tree.addKeyListener(new KeyAdapter(){ |
| |
| public void keyPressed(KeyEvent e) { |
| if( SWT.CR == e.keyCode ) { |
| invokeSource(); |
| } |
| } |
| |
| }); |
| } |
| |
| private void invokeSource() { |
| IStructuredSelection selection = (IStructuredSelection)getSelection(); |
| if (selection.size() == 1) { |
| invoke(selection.getFirstElement()); |
| } |
| } |
| |
| public void invoke(Object element) { |
| if( element instanceof PropertyTreeEntry ) { |
| PropertyTreeEntry entry = (PropertyTreeEntry)element; |
| IPropertySource source = entry.getPropertySource(); |
| if( source instanceof IPropertyInvoke ) { |
| MSAAViewRegistory.addUpdateRef(); |
| try { |
| if( ((IPropertyInvoke)source).invoke(entry.getId(),getControl().getShell()) ) { |
| refresh(element); |
| } |
| } |
| finally { |
| MSAAViewRegistory.releaseUpdateRef(); |
| } |
| } |
| } |
| } |
| |
| public void refresh() { |
| setInput(getRoot()); |
| } |
| |
| protected void inputChanged(Object input, Object oldInput) { |
| preservingSelection(new Runnable() { |
| public void run() { |
| Tree tree = (Tree)getControl(); |
| tree.setRedraw(false); |
| ISelection selected = getSelection(); |
| Object[] expanded = getExpandedElements(); |
| lastContents.clear(); |
| getContents(lastContents, tree.getItems()); |
| removeAll(tree); |
| tree.setData(getRoot()); |
| createChildren(tree); |
| for( int i=0; i<expanded.length; i++ ) { |
| setExpandedState(expanded[i], true); |
| } |
| if( getExpandedElements().length==0 && tree.getItemCount()>0) { |
| setExpandedState(tree.getItem(0).getData(), true); |
| } |
| setSelection(selected,true); |
| tree.setRedraw(true); |
| } |
| }); |
| } |
| |
| private void getContents(Map map, TreeItem[] items) { |
| for( int i=0; i<items.length; i++ ) { |
| TreeItem item = items[i]; |
| Object itemData = item.getData(); |
| if( itemData instanceof PropertyTreeEntry ) { |
| PropertyTreeEntry entry = (PropertyTreeEntry)itemData; |
| map.put(entry.getPath(), item.getText(1)); |
| } |
| getContents(map, item.getItems()); |
| } |
| } |
| |
| public Map getLastContents() { |
| return lastContents; |
| } |
| } |