Source for javax.swing.plaf.metal.MetalInternalFrameUI

   1: /* MetalInternalFrameUI.java
   2:    Copyright (C) 2005 Free Software Foundation, Inc.
   3: 
   4: This file is part of GNU Classpath.
   5: 
   6: GNU Classpath is free software; you can redistribute it and/or modify
   7: it under the terms of the GNU General Public License as published by
   8: the Free Software Foundation; either version 2, or (at your option)
   9: any later version.
  10: 
  11: GNU Classpath is distributed in the hope that it will be useful, but
  12: WITHOUT ANY WARRANTY; without even the implied warranty of
  13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14: General Public License for more details.
  15: 
  16: You should have received a copy of the GNU General Public License
  17: along with GNU Classpath; see the file COPYING.  If not, write to the
  18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19: 02110-1301 USA.
  20: 
  21: Linking this library statically or dynamically with other modules is
  22: making a combined work based on this library.  Thus, the terms and
  23: conditions of the GNU General Public License cover the whole
  24: combination.
  25: 
  26: As a special exception, the copyright holders of this library give you
  27: permission to link this library with independent modules to produce an
  28: executable, regardless of the license terms of these independent
  29: modules, and to copy and distribute the resulting executable under
  30: terms of your choice, provided that you also meet, for each linked
  31: independent module, the terms and conditions of the license of that
  32: module.  An independent module is a module which is not derived from
  33: or based on this library.  If you modify this library, you may extend
  34: this exception to your version of the library, but you are not
  35: obligated to do so.  If you do not wish to do so, delete this
  36: exception statement from your version. */
  37: 
  38: 
  39: package javax.swing.plaf.metal;
  40: 
  41: import java.beans.PropertyChangeEvent;
  42: import java.beans.PropertyChangeListener;
  43: 
  44: import javax.swing.JComponent;
  45: import javax.swing.JInternalFrame;
  46: import javax.swing.plaf.ComponentUI;
  47: import javax.swing.plaf.basic.BasicInternalFrameUI;
  48: 
  49: /**
  50:  * A UI delegate for the {@link JInternalFrame} component.
  51:  */
  52: public class MetalInternalFrameUI
  53:   extends BasicInternalFrameUI
  54: {
  55:   /** 
  56:    * The key (<code>JInternalFrame.isPalette</code>) for the client property 
  57:    * that controls whether the internal frame is displayed using the palette 
  58:    * style. 
  59:    */
  60:   protected static String IS_PALETTE = "JInternalFrame.isPalette";
  61: 
  62:   /**
  63:    * Constructs a new instance of <code>MetalInternalFrameUI</code>.
  64:    * 
  65:    * @param frame  the frame.
  66:    */
  67:   public MetalInternalFrameUI(JInternalFrame frame)
  68:   {
  69:     super(frame);
  70:   }
  71: 
  72:   /**
  73:    * Returns an instance of <code>MetalInternalFrameUI</code>.
  74:    *
  75:    * @param component the internal frame.
  76:    *
  77:    * @return an instance of <code>MetalInternalFrameUI</code>.
  78:    */
  79:   public static ComponentUI createUI(JComponent component)
  80:   {
  81:     return new MetalInternalFrameUI((JInternalFrame) component);
  82:   }
  83:   
  84:   /**
  85:    * Sets the fields and properties for the component.
  86:    * 
  87:    * @param c  the component.
  88:    */
  89:   public void installUI(JComponent c)
  90:   {
  91:     super.installUI(c);
  92:     JInternalFrame f = (JInternalFrame) c;
  93:     boolean isPalette = false;
  94:     Boolean p = (Boolean) f.getClientProperty(IS_PALETTE);
  95:     if (p != null)
  96:       isPalette = p.booleanValue();
  97:     setPalette(isPalette);
  98:   }
  99: 
 100:   /**
 101:    * Creates and returns the component that will be used for the north pane
 102:    * of the {@link JInternalFrame}.  
 103:    * 
 104:    * @param w  the internal frame.
 105:    * 
 106:    * @return A new instance of {@link MetalInternalFrameTitlePane}.
 107:    */
 108:   protected JComponent createNorthPane(JInternalFrame w)
 109:   {
 110:     titlePane = new MetalInternalFrameTitlePane(w);
 111:     return titlePane;  
 112:   }
 113:   
 114:   /**
 115:    * Sets the state of the {@link JInternalFrame} to reflect whether or not
 116:    * it is using the palette style.  When a frame is displayed as a palette,
 117:    * it uses a different border and the title pane is drawn differently.
 118:    * 
 119:    * @param isPalette  use the palette style?
 120:    */
 121:   public void setPalette(boolean isPalette)
 122:   {
 123:     MetalInternalFrameTitlePane title = (MetalInternalFrameTitlePane) northPane;
 124:     title.setPalette(isPalette);
 125:     if (isPalette)
 126:       frame.setBorder(new MetalBorders.PaletteBorder());
 127:     else
 128:       frame.setBorder(new MetalBorders.InternalFrameBorder());
 129:   }
 130:  
 131:   /** A listener that is used to handle IS_PALETTE property changes. */
 132:   private PropertyChangeListener paletteListener;
 133:   
 134:   /**
 135:    * Adds the required listeners.
 136:    */
 137:   protected void installListeners()
 138:   {
 139:     super.installListeners(); 
 140:     paletteListener = new PropertyChangeListener() 
 141:     {
 142:       public void propertyChange(PropertyChangeEvent e)
 143:       {
 144:         if (e.getPropertyName().equals(IS_PALETTE))
 145:           {
 146:             if (Boolean.TRUE.equals(e.getNewValue()))
 147:               setPalette(true);
 148:             else
 149:               setPalette(false);
 150:           }
 151:       }
 152:     };
 153:     frame.addPropertyChangeListener(paletteListener);
 154:   }
 155:   
 156:   /**
 157:    * Removes the listeners used.
 158:    */
 159:   protected void uninstallListeners()
 160:   {
 161:     super.uninstallListeners();
 162:     frame.removePropertyChangeListener(IS_PALETTE, paletteListener);
 163:     paletteListener = null;
 164:   }
 165: }