llvm-gcc-4.2/libjava/classpath/javax/swing/colorchooser/AbstractColorChooserPanel.java

/* AbstractColorChooserPanel.java --
   Copyright (C) 2002, 2004, 2005  Free Software Foundation, Inc.

This file is part of GNU Classpath.

GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
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02110-1301 USA.

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permission to link this library with independent modules to produce an
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package javax.swing.colorchooser;

import java.awt.Color;
import java.awt.Graphics;

import javax.swing.Icon;
import javax.swing.JColorChooser;
import javax.swing.JPanel;

/**
 * AbstractColorChooserPanel
 *
 * @author Andrew Selkirk
 * @version 1.0
 */
public abstract class AbstractColorChooserPanel extends JPanel
{
  /** DOCUMENT ME! */
  private static final long serialVersionUID = -977469671210173863L;

  /** The chooser associated with this panel. */
  private JColorChooser chooser;

  /**
   * This is the constructor for the AbstractColorChooserPanel.
   */
  public AbstractColorChooserPanel()
  {
    // Nothing to do here.
  }

  /**
   * This method returns the name displayed in the tab for this chooser panel.
   *
   * @return The name displayed in the JTabbedPane's tabs.
   */
  public abstract String getDisplayName();

  /**
   * Returns the key code for the mnemonic for this panel.  This method returns
   * zero to indicate no mnemonic, subclasses can override this.
   * 
   * @return <code>0</code>, to indicate no mnemonic key code.
   * 
   * @see #getDisplayedMnemonicIndex()
   * @since 1.4
   */
  public int getMnemonic()
  {
    return 0;
  }
  
  /**
   * Returns the index of the character in the display name that is the 
   * mnemonic.  This method returns <code>-1</code> to indicate no mnemonic,
   * subclasses can override.
   * 
   * @return <code>-1</code>, to indicate no mnemonic.
   * 
   * @see #getDisplayName()
   * @see #getMnemonic()
   * @since 1.4
   */
  public int getDisplayedMnemonicIndex()
  {
    return -1;
  }
  
  /**
   * This method updates the chooser panel when the JColorChooser's color has
   * changed.
   */
  public abstract void updateChooser();

  /**
   * This method constructs and does any initialization necessary for the
   * chooser panel.
   */
  protected abstract void buildChooser();

  /**
   * This method sets the small icon used in the JTabbedPane for this chooser
   * panel.
   *
   * @return The small icon used in the JTabbedPane.
   */
  public abstract Icon getSmallDisplayIcon();

  /**
   * This method sets the large icon useed in the jTabbedPane for this chooser
   * panel.
   *
   * @return The large icon.
   */
  public abstract Icon getLargeDisplayIcon();

  /**
   * This method installs the chooser panel for the given JColorChooser.
   *
   * @param chooser The JColorChooser that will have this panel installed.
   */
  public void installChooserPanel(JColorChooser chooser)
  {
    this.chooser = chooser;
    buildChooser();
  } // installChooserPanel()

  /**
   * This method removes the chooser panel from the given JColorChooser and
   * does any necessary clean up for the chooser panel.
   *
   * @param chooser The JColorChooser that is having this panel removed.
   */
  public void uninstallChooserPanel(JColorChooser chooser)
  {
    this.chooser = null;
  } // uninstallChooserPanel()

  /**
   * This method returns the ColorSelectionModel for the JColorChooser
   * associated with this chooser panel.
   *
   * @return The ColorSelectionModel for the JColorChooser associated with
   *         this chooser panel.
   */
  public ColorSelectionModel getColorSelectionModel()
  {
    if (chooser != null)
      return chooser.getSelectionModel();
    return null;
  } // getColorSelectionModel()

  /**
   * This method returns the current color stored in the model for this
   * chooser panel.
   *
   * @return The current color.
   */
  protected Color getColorFromModel()
  {
    if (chooser != null)
      return chooser.getColor();
    return null;
  } // getColorFromModel()

  /**
   * This method paints the chooser panel.
   *
   * @param graphics The Graphics object to paint with.
   */
  public void paint(Graphics graphics)
  {
    super.paint(graphics);
  } // paint()
} // AbstractColorChooserPanel