Source for javax.swing.colorchooser.AbstractColorChooserPanel

   1: /* AbstractColorChooserPanel.java --
   2:    Copyright (C) 2002, 2004, 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.colorchooser;
  40: 
  41: import java.awt.Color;
  42: import java.awt.Graphics;
  43: 
  44: import javax.swing.Icon;
  45: import javax.swing.JColorChooser;
  46: import javax.swing.JPanel;
  47: 
  48: /**
  49:  * AbstractColorChooserPanel
  50:  *
  51:  * @author Andrew Selkirk
  52:  * @version 1.0
  53:  */
  54: public abstract class AbstractColorChooserPanel extends JPanel
  55: {
  56:   /** DOCUMENT ME! */
  57:   private static final long serialVersionUID = -977469671210173863L;
  58: 
  59:   /** The chooser associated with this panel. */
  60:   private JColorChooser chooser;
  61: 
  62:   /**
  63:    * This is the constructor for the AbstractColorChooserPanel.
  64:    */
  65:   public AbstractColorChooserPanel()
  66:   {
  67:     // Nothing to do here.
  68:   }
  69: 
  70:   /**
  71:    * This method returns the name displayed in the tab for this chooser panel.
  72:    *
  73:    * @return The name displayed in the JTabbedPane's tabs.
  74:    */
  75:   public abstract String getDisplayName();
  76: 
  77:   /**
  78:    * Returns the key code for the mnemonic for this panel.  This method returns
  79:    * zero to indicate no mnemonic, subclasses can override this.
  80:    * 
  81:    * @return <code>0</code>, to indicate no mnemonic key code.
  82:    * 
  83:    * @see #getDisplayedMnemonicIndex()
  84:    * @since 1.4
  85:    */
  86:   public int getMnemonic()
  87:   {
  88:     return 0;
  89:   }
  90:   
  91:   /**
  92:    * Returns the index of the character in the display name that is the 
  93:    * mnemonic.  This method returns <code>-1</code> to indicate no mnemonic,
  94:    * subclasses can override.
  95:    * 
  96:    * @return <code>-1</code>, to indicate no mnemonic.
  97:    * 
  98:    * @see #getDisplayName()
  99:    * @see #getMnemonic()
 100:    * @since 1.4
 101:    */
 102:   public int getDisplayedMnemonicIndex()
 103:   {
 104:     return -1;
 105:   }
 106:   
 107:   /**
 108:    * This method updates the chooser panel when the JColorChooser's color has
 109:    * changed.
 110:    */
 111:   public abstract void updateChooser();
 112: 
 113:   /**
 114:    * This method constructs and does any initialization necessary for the
 115:    * chooser panel.
 116:    */
 117:   protected abstract void buildChooser();
 118: 
 119:   /**
 120:    * This method sets the small icon used in the JTabbedPane for this chooser
 121:    * panel.
 122:    *
 123:    * @return The small icon used in the JTabbedPane.
 124:    */
 125:   public abstract Icon getSmallDisplayIcon();
 126: 
 127:   /**
 128:    * This method sets the large icon useed in the jTabbedPane for this chooser
 129:    * panel.
 130:    *
 131:    * @return The large icon.
 132:    */
 133:   public abstract Icon getLargeDisplayIcon();
 134: 
 135:   /**
 136:    * This method installs the chooser panel for the given JColorChooser.
 137:    *
 138:    * @param chooser The JColorChooser that will have this panel installed.
 139:    */
 140:   public void installChooserPanel(JColorChooser chooser)
 141:   {
 142:     this.chooser = chooser;
 143:     buildChooser();
 144:   } // installChooserPanel()
 145: 
 146:   /**
 147:    * This method removes the chooser panel from the given JColorChooser and
 148:    * does any necessary clean up for the chooser panel.
 149:    *
 150:    * @param chooser The JColorChooser that is having this panel removed.
 151:    */
 152:   public void uninstallChooserPanel(JColorChooser chooser)
 153:   {
 154:     this.chooser = null;
 155:   } // uninstallChooserPanel()
 156: 
 157:   /**
 158:    * This method returns the ColorSelectionModel for the JColorChooser
 159:    * associated with this chooser panel.
 160:    *
 161:    * @return The ColorSelectionModel for the JColorChooser associated with
 162:    *         this chooser panel.
 163:    */
 164:   public ColorSelectionModel getColorSelectionModel()
 165:   {
 166:     if (chooser != null)
 167:       return chooser.getSelectionModel();
 168:     return null;
 169:   } // getColorSelectionModel()
 170: 
 171:   /**
 172:    * This method returns the current color stored in the model for this
 173:    * chooser panel.
 174:    *
 175:    * @return The current color.
 176:    */
 177:   protected Color getColorFromModel()
 178:   {
 179:     if (chooser != null)
 180:       return chooser.getColor();
 181:     return null;
 182:   } // getColorFromModel()
 183: 
 184:   /**
 185:    * This method paints the chooser panel.
 186:    *
 187:    * @param graphics The Graphics object to paint with.
 188:    */
 189:   public void paint(Graphics graphics)
 190:   {
 191:     super.paint(graphics);
 192:   } // paint()
 193: } // AbstractColorChooserPanel