| /******************************************************************************* |
| * Copyright (c) 2004, 2006 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.wst.xml.ui.internal.tabletree; |
| |
| import org.eclipse.jface.action.Action; |
| import org.eclipse.jface.resource.ImageDescriptor; |
| import org.eclipse.jface.viewers.AbstractTreeViewer; |
| import org.eclipse.wst.xml.ui.internal.XMLUIMessages; |
| |
| public class ViewerExpandCollapseAction extends Action { |
| |
| protected boolean isExpandAction; |
| protected AbstractTreeViewer viewer = null; |
| |
| public ViewerExpandCollapseAction(boolean isExpandAction) { |
| this.isExpandAction = isExpandAction; |
| if (isExpandAction) { |
| ImageDescriptor e_imageDescriptor = XMLEditorPluginImageHelper.getInstance().getImageDescriptor(XMLEditorPluginImages.IMG_ETOOL_EXPANDALL); |
| ImageDescriptor d_imageDescriptor = XMLEditorPluginImageHelper.getInstance().getImageDescriptor(XMLEditorPluginImages.IMG_DTOOL_EXPANDALL); |
| |
| setImageDescriptor(e_imageDescriptor); |
| setDisabledImageDescriptor(d_imageDescriptor); |
| setToolTipText(XMLUIMessages._UI_INFO_EXPAND_ALL); |
| } |
| else { |
| ImageDescriptor e_imageDescriptor = XMLEditorPluginImageHelper.getInstance().getImageDescriptor(XMLEditorPluginImages.IMG_ETOOL_COLLAPSEALL); |
| ImageDescriptor d_imageDescriptor = XMLEditorPluginImageHelper.getInstance().getImageDescriptor(XMLEditorPluginImages.IMG_DTOOL_COLLAPSEALL); |
| |
| setImageDescriptor(e_imageDescriptor); |
| setDisabledImageDescriptor(d_imageDescriptor); |
| setToolTipText(XMLUIMessages._UI_INFO_COLLAPSE_ALL); |
| } |
| } |
| |
| public void setViewer(AbstractTreeViewer viewer) { |
| this.viewer = viewer; |
| } |
| |
| public void run() { |
| if (viewer != null) { |
| // temporarily set the visibility to false |
| // this has a HUGE performance benefit |
| boolean isVisible = viewer.getControl().getVisible(); |
| viewer.getControl().setVisible(false); |
| |
| if (isExpandAction) { |
| viewer.expandAll(); |
| } |
| else { |
| viewer.collapseAll(); |
| } |
| |
| // restore the previous visibility state |
| // |
| viewer.getControl().setVisible(isVisible); |
| } |
| } |
| } |