| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.LayoutTag; |
| import org.eclipse.jface.window.Window; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Widget; |
| |
| /** |
| * Implementation of SWT LayoutTag |
| * |
| * @author <a href="mailto:ckl@dacelo.nl">Christiaan ten Klooster</a> |
| */ |
| public class JFaceLayoutTag extends LayoutTag { |
| |
| /** |
| * @param layoutClass |
| */ |
| public JFaceLayoutTag(Class layoutClass) { |
| super(layoutClass); |
| // TODO Auto-generated constructor stub |
| } |
| |
| /* (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(); |
| if (parent == null) { // perhaps parent is a Window |
| Window window = getParentWindow(); |
| if (window != null && window instanceof ApplicationWindowImpl) { |
| parent = ((ApplicationWindowImpl) window).getContents(); |
| } |
| } |
| |
| if (parent instanceof Composite) { |
| Composite composite = (Composite) parent; |
| composite.setLayout(getLayout()); |
| |
| } else { |
| throw new JellyTagException("This tag must be nested within a composite widget tag"); |
| } |
| |
| } |
| |
| /** |
| * @return the parent window |
| */ |
| public Window getParentWindow() { |
| ApplicationWindowTag tag = |
| (ApplicationWindowTag) findAncestorWithClass(ApplicationWindowTag.class); |
| if (tag != null) { |
| return tag.getWindow(); |
| } |
| return null; |
| } |
| } |
| |
| |