gcc/libjava/javax/swing/plaf/SplitPaneUI.java

/* SplitPaneUI.java --
   Copyright (C) 2002, 2003 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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permission to link this library with independent modules to produce an
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package javax.swing.plaf;


import java.awt.Graphics;
import javax.swing.JSplitPane;


/**
 * An abstract base class for delegates that implement the pluggable
 * look and feel for a <code>JSplitPane</code>.
 *
 * @see javax.swing.JSplitPane
 *
 * @author Andrew Selkirk (aselkirk@sympatico.ca)
 * @author Sascha Brawer (brawer@dandelis.ch)
 */
public abstract class SplitPaneUI
  extends ComponentUI
{
  /**
   * Constructs a new <code>SplitPaneUI</code>.
   */
  public SplitPaneUI()
  {
  }


  /**
   * Moves the divider to the location which best respects
   * the preferred sizes of the children.
   *
   * @param pane the <code>JSplitPane</code> for thich this
   *        delegate provides the look and feel.
   */
  public abstract void resetToPreferredSizes(JSplitPane pane);


  /**
   * Moves the divider to the specified location.
   *
   * @param pane the <code>JSplitPane</code> for thich this
   *        delegate provides the look and feel.
   *
   * @param location the new location of the divider.
   */
  public abstract void setDividerLocation(JSplitPane pane,
                                          int location);


  /**
   * Determines the current location of the divider.
   *
   * @param pane the <code>JSplitPane</code> for thich this
   *        delegate provides the look and feel.
   *
   * @return the current location of the divider.
   */
  public abstract int getDividerLocation(JSplitPane pane);
  
  
  /**
   * Determines the minimum location of the divider.
   *
   * @param pane the <code>JSplitPane</code> for thich this
   *        delegate provides the look and feel.
   *
   * @return the leftmost (or topmost) possible location
   *         of the divider.
   */
  public abstract int getMinimumDividerLocation(JSplitPane pane);


  /**
   * Determines the maximum location of the divider.
   *
   * @param pane the <code>JSplitPane</code> for thich this
   *        delegate provides the look and feel.
   *
   * @return the bottommost (or rightmost) possible location
   *         of the divider.
   */
  public abstract int getMaximumDividerLocation(JSplitPane pane);


  /**
   * Called by the <code>JSplitPane</code> after it has finished
   * painting its children.
   *
   * @param pane the <code>JSplitPane</code> for thich this
   *        delegate provides the look and feel.
   *
   * @param g the Graphics used for painting.
   */
  public abstract void finishedPaintingChildren(JSplitPane pane,
                                                Graphics g);
}