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    1   /*
    2    * Copyright 2002 Sun Microsystems, Inc. All rights reserved.
    3    * 
    4    * Redistribution and use in source and binary forms, with or
    5    * without modification, are permitted provided that the following
    6    * conditions are met:
    7    * 
    8    * - Redistributions of source code must retain the above copyright
    9    *   notice, this list of conditions and the following disclaimer.
   10    * 
   11    * - Redistribution in binary form must reproduce the above
   12    *   copyright notice, this list of conditions and the following
   13    *   disclaimer in the documentation and/or other materials
   14    *   provided with the distribution.
   15    * 
   16    * Neither the name of Sun Microsystems, Inc. or the names of
   17    * contributors may be used to endorse or promote products derived
   18    * from this software without specific prior written permission.
   19    * 
   20    * This software is provided "AS IS," without a warranty of any
   21    * kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
   22    * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
   23    * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
   24    * EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY
   25    * DAMAGES OR LIABILITIES SUFFERED BY LICENSEE AS A RESULT OF OR
   26    * RELATING TO USE, MODIFICATION OR DISTRIBUTION OF THIS SOFTWARE OR
   27    * ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE
   28    * FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT,
   29    * SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER
   30    * CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF
   31    * THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS
   32    * BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
   33    * 
   34    * You acknowledge that this software is not designed, licensed or
   35    * intended for use in the design, construction, operation or
   36    * maintenance of any nuclear facility.
   37    */
   38   package javax.swing.beaninfo;
   39   
   40   import java.awt.Component;
   41   import java.awt.Dimension;
   42   import java.awt.Insets;
   43   
   44   import java.beans.PropertyDescriptor;
   45   import java.beans.PropertyEditorSupport;
   46   
   47   import javax.swing.JComponent;
   48   import javax.swing.JPanel;
   49   
   50   /**
   51    * Base class of all Swing based property editors.
   52    *
   53    * @version 1.4 02/27/02
   54    * @author  Tom Santos
   55    * @author  Mark Davidson
   56    */
   57   public class SwingEditorSupport extends PropertyEditorSupport {
   58   
   59       /** 
   60        * Component which holds the editor. Subclasses are responsible for
   61        * instantiating this panel.
   62        */
   63       protected JPanel panel;
   64       
   65       protected static final Dimension LARGE_DIMENSION = new Dimension(150,20);
   66       protected static final Dimension MEDIUM_DIMENSION = new Dimension(120,20);
   67       protected static final Dimension SMALL_DIMENSION = new Dimension(50,20);
   68       protected static final Insets BUTTON_MARGIN = new Insets(0,0,0,0);
   69   
   70       /** 
   71        * Returns the panel responsible for rendering the PropertyEditor.
   72        */
   73       public Component getCustomEditor() {
   74           return panel;
   75       }
   76   
   77       public boolean supportsCustomEditor() {
   78           return true;
   79       }
   80       
   81       // layout stuff
   82       protected final void setAlignment(JComponent c){
   83           c.setAlignmentX(Component.CENTER_ALIGNMENT);
   84           c.setAlignmentY(Component.CENTER_ALIGNMENT);
   85       }
   86       
   87       /** 
   88        * For property editors that must be initialized with values from
   89        * the property descriptor.
   90        */
   91       public void init(PropertyDescriptor descriptor)  {  
   92       }
   93   }

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