Coverage report

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org.apache.commons.jelly.tags.jface.JFaceLayoutTag
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 1  
 /*
 2  
  * Copyright 2002,2004 The Apache Software Foundation.
 3  
  *
 4  
  * Licensed under the Apache License, Version 2.0 (the "License");
 5  
  * you may not use this file except in compliance with the License.
 6  
  * You may obtain a copy of the License at
 7  
  *
 8  
  *      http://www.apache.org/licenses/LICENSE-2.0
 9  
  *
 10  
  * Unless required by applicable law or agreed to in writing, software
 11  
  * distributed under the License is distributed on an "AS IS" BASIS,
 12  
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 13  
  * See the License for the specific language governing permissions and
 14  
  * limitations under the License.
 15  
  */
 16  
 package org.apache.commons.jelly.tags.jface;
 17  
 
 18  
 import org.apache.commons.jelly.JellyTagException;
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 import org.apache.commons.jelly.tags.jface.window.ApplicationWindowImpl;
 20  
 import org.apache.commons.jelly.tags.jface.window.ApplicationWindowTag;
 21  
 import org.apache.commons.jelly.tags.swt.LayoutTag;
 22  
 import org.eclipse.jface.window.Window;
 23  
 import org.eclipse.swt.widgets.Composite;
 24  
 import org.eclipse.swt.widgets.Widget;
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 26  
 /**
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  * Implementation of SWT LayoutTag
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  *
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  * @author <a href="mailto:ckl@dacelo.nl">Christiaan ten Klooster</a>
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  */
 31  0
 public class JFaceLayoutTag extends LayoutTag {
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 33  
     /**
 34  
      * @param layoutClass
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      */
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     public JFaceLayoutTag(Class layoutClass) {
 37  0
         super(layoutClass);
 38  
         // TODO Auto-generated constructor stub
 39  0
     }
 40  
 
 41  
     /* (non-Javadoc)
 42  
      * @see org.apache.commons.jelly.tags.core.UseBeanTag#processBean(java.lang.String, java.lang.Object)
 43  
      */
 44  
     protected void processBean(String var, Object bean) throws JellyTagException {
 45  
 
 46  0
         Widget parent = getParentWidget();
 47  0
         if (parent == null) { // perhaps parent is a Window
 48  0
             Window window = getParentWindow();
 49  0
             if (window != null && window instanceof ApplicationWindowImpl) {
 50  0
                 parent = ((ApplicationWindowImpl) window).getContents();
 51  
             }
 52  
         }
 53  
 
 54  0
         if (parent instanceof Composite) {
 55  0
             Composite composite = (Composite) parent;
 56  0
             composite.setLayout(getLayout());
 57  
 
 58  
         } else {
 59  0
             throw new JellyTagException("This tag must be nested within a composite widget tag");
 60  
         }
 61  
 
 62  0
     }
 63  
 
 64  
     /**
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      * @return the parent window
 66  
      */
 67  
     public Window getParentWindow() {
 68  0
         ApplicationWindowTag tag =
 69  
             (ApplicationWindowTag) findAncestorWithClass(ApplicationWindowTag.class);
 70  0
         if (tag != null) {
 71  0
             return tag.getWindow();
 72  
         }
 73  0
         return null;
 74  
     }
 75  
 }
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 77  
 

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