| /* |
| * Copyright 2002-2004 The Apache Software Foundation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.commons.jelly.tags.jface; |
| |
| import org.apache.commons.jelly.JellyTagException; |
| import org.apache.commons.jelly.tags.jface.window.ApplicationWindowImpl; |
| import org.apache.commons.jelly.tags.jface.window.ApplicationWindowTag; |
| import org.apache.commons.jelly.tags.swt.LayoutDataTag; |
| import org.eclipse.jface.window.Window; |
| import org.eclipse.swt.widgets.Control; |
| import org.eclipse.swt.widgets.Widget; |
| |
| /** |
| * Implementation of SWT LayoutDataTag |
| * |
| * @author <a href="mailto:ckl@dacelo.nl">Christiaan ten Klooster</a> |
| */ |
| public class JFaceLayoutDataTag extends LayoutDataTag { |
| |
| /** |
| * @param layoutDataClass |
| */ |
| public JFaceLayoutDataTag(Class layoutDataClass) { |
| super(layoutDataClass); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.apache.commons.jelly.tags.core.UseBeanTag#processBean(java.lang.String, java.lang.Object) |
| */ |
| protected void processBean(String var, Object bean) throws JellyTagException { |
| Widget parent = getParentWidget(); |
| Window window = null; |
| if (parent == null) { |
| window = getParentWindow(); |
| if (window != null && window instanceof ApplicationWindowImpl) { |
| parent = ((ApplicationWindowImpl) window).getContents(); |
| } |
| } |
| |
| if (parent instanceof Control) { |
| Control control = (Control) parent; |
| control.setLayoutData(getBean()); |
| } else { |
| throw new JellyTagException("This tag must be nested within a control widget tag"); |
| } |
| } |
| |
| /** |
| * @return the parent window |
| */ |
| public Window getParentWindow() { |
| ApplicationWindowTag tag = |
| (ApplicationWindowTag) findAncestorWithClass(ApplicationWindowTag.class); |
| if (tag != null) { |
| return tag.getWindow(); |
| } |
| return null; |
| } |
| |
| } |