Coverage report

  %line %branch
org.apache.commons.jelly.tags.swing.BorderTagSupport
7% 
83% 

 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.swing;
 17  
 
 18  
 import javax.swing.border.Border;
 19  
 
 20  
 import org.apache.commons.jelly.JellyTagException;
 21  
 import org.apache.commons.jelly.TagSupport;
 22  
 import org.apache.commons.jelly.XMLOutput;
 23  
 import org.apache.commons.logging.Log;
 24  
 import org.apache.commons.logging.LogFactory;
 25  
 
 26  
 /**
 27  
  * An abstract base class used for concrete border tags which create new Border implementations
 28  
  * and sets then on parent widgets and optionally export them as variables .
 29  
  *
 30  
  * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
 31  
  * @version $Revision: 155420 $
 32  
  */
 33  
 public abstract class BorderTagSupport extends TagSupport {
 34  
 
 35  
     /** The Log to which logging calls will be made. */
 36  8
     private static final Log log = LogFactory.getLog(BorderTagSupport.class);
 37  
 
 38  
     private String var;
 39  
 
 40  0
     public BorderTagSupport() {
 41  0
     }
 42  
 
 43  
     // Tag interface
 44  
     //-------------------------------------------------------------------------
 45  
     public void doTag(final XMLOutput output) throws JellyTagException {
 46  
 
 47  0
         Border border = createBorder();
 48  
 
 49  
         // allow some nested tags to set properties
 50  0
         invokeBody(output);
 51  
 
 52  0
         if (var != null) {
 53  0
             context.setVariable(var, border);
 54  
         }
 55  0
         ComponentTag tag = (ComponentTag) findAncestorWithClass( ComponentTag.class );
 56  0
         if ( tag != null ) {
 57  0
             tag.setBorder(border);
 58  
         }
 59  
         else {
 60  0
             if (var == null) {
 61  0
                 throw new JellyTagException( "Either the 'var' attribute must be specified to export this Border or this tag must be nested within a JellySwing widget tag" );
 62  
             }
 63  
         }
 64  0
     }
 65  
 
 66  
     // Properties
 67  
     //-------------------------------------------------------------------------
 68  
 
 69  
 
 70  
     /**
 71  
      * Sets the name of the variable to use to expose the new Border object.
 72  
      * If this attribute is not set then the parent widget tag will have its
 73  
      * border property set.
 74  
      */
 75  
     public void setVar(String var) {
 76  0
         this.var = class="keyword">var;
 77  0
     }
 78  
 
 79  
     // Implementation methods
 80  
     //-------------------------------------------------------------------------
 81  
 
 82  
     /**
 83  
      * Factory method to create a new Border instance.
 84  
      */
 85  
     protected abstract Border createBorder();
 86  
 }

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