mirror of
https://github.com/autc04/Retro68.git
synced 2024-12-12 11:29:30 +00:00
115 lines
3.9 KiB
Java
115 lines
3.9 KiB
Java
/* ListUI.java --
|
|
Copyright (C) 2002, 2003, 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
|
|
the Free Software Foundation; either version 2, or (at your option)
|
|
any later version.
|
|
|
|
GNU Classpath is distributed in the hope that it will be useful, but
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with GNU Classpath; see the file COPYING. If not, write to the
|
|
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
|
02110-1301 USA.
|
|
|
|
Linking this library statically or dynamically with other modules is
|
|
making a combined work based on this library. Thus, the terms and
|
|
conditions of the GNU General Public License cover the whole
|
|
combination.
|
|
|
|
As a special exception, the copyright holders of this library give you
|
|
permission to link this library with independent modules to produce an
|
|
executable, regardless of the license terms of these independent
|
|
modules, and to copy and distribute the resulting executable under
|
|
terms of your choice, provided that you also meet, for each linked
|
|
independent module, the terms and conditions of the license of that
|
|
module. An independent module is a module which is not derived from
|
|
or based on this library. If you modify this library, you may extend
|
|
this exception to your version of the library, but you are not
|
|
obligated to do so. If you do not wish to do so, delete this
|
|
exception statement from your version. */
|
|
|
|
|
|
package javax.swing.plaf;
|
|
|
|
import java.awt.Point;
|
|
import java.awt.Rectangle;
|
|
|
|
import javax.swing.JList;
|
|
|
|
/**
|
|
* An abstract base class for delegates that implement the pluggable
|
|
* look and feel for a <code>JList</code>.
|
|
*
|
|
* @author Sascha Brawer (brawer@dandelis.ch)
|
|
*/
|
|
public abstract class ListUI extends ComponentUI
|
|
{
|
|
/**
|
|
* Constructs a new <code>ListUI</code>.
|
|
*/
|
|
public ListUI()
|
|
{
|
|
// Nothing to do here.
|
|
}
|
|
|
|
|
|
/**
|
|
* Determines the cell index which is the closest to the specified
|
|
* location. The find out whether the returned cell actually
|
|
* contains the location, the caller should also use {@link
|
|
* #getCellBounds}.
|
|
*
|
|
* @param list the <code>JList</code> for which this delegate object
|
|
* provides the pluggable user interface.
|
|
*
|
|
* @param location a point in the <code>JList</code> coordinate
|
|
* system.
|
|
*
|
|
* @return the index of the closest cell, or -1 if the list model
|
|
* is empty.
|
|
*/
|
|
public abstract int locationToIndex(JList list, Point location);
|
|
|
|
|
|
/**
|
|
* Determines the location of the specified cell.
|
|
*
|
|
* @param list the <code>JList</code> for which this delegate object
|
|
* provides the pluggable user interface.
|
|
*
|
|
* @param index the zero-based index of the cell whose location shall be
|
|
* determined.
|
|
*
|
|
* @return the position of the top left corner of the cell in the
|
|
* <code>JList</code> coordinate system, or <code>null</code>
|
|
* if <code>cell</code> does not designate a valid cell.
|
|
*/
|
|
public abstract Point indexToLocation(JList list, int index);
|
|
|
|
|
|
/**
|
|
* Determines the bounding box of the rectangle spanned by
|
|
* two list indices.
|
|
*
|
|
* @param list the <code>JList</code> for which this delegate object
|
|
* provides the pluggable user interface.
|
|
*
|
|
* @param index1 the zero-based index of the first cell.
|
|
*
|
|
* @param index2 the zero-based index of the second cell.
|
|
*
|
|
* @return the spanned rectangle, or <code>null</code> if either
|
|
* <code>index1</code> or <code>index2</code> does not
|
|
* designate a valid cell.
|
|
*/
|
|
public abstract Rectangle getCellBounds(JList list,
|
|
int index1, int index2);
|
|
}
|