mirror of
https://github.com/autc04/Retro68.git
synced 2024-12-04 01:50:38 +00:00
291 lines
8.2 KiB
Java
291 lines
8.2 KiB
Java
/* Box.java --
|
|
Copyright (C) 2002, 2004 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;
|
|
|
|
import java.awt.AWTError;
|
|
import java.awt.Component;
|
|
import java.awt.Container;
|
|
import java.awt.Dimension;
|
|
import java.awt.LayoutManager;
|
|
|
|
import javax.accessibility.Accessible;
|
|
import javax.accessibility.AccessibleContext;
|
|
import javax.accessibility.AccessibleRole;
|
|
|
|
/**
|
|
* A component that uses a {@link BoxLayout} as Layout Manager.
|
|
*
|
|
* In addition to that, this class provides a set of static methods for
|
|
* creating some filler components ('struts' and 'glue') for use in
|
|
* containers that are laid out using BoxLayout.
|
|
*
|
|
* @author Ronald Veldema (rveldema@cs.vu.nl)
|
|
*/
|
|
public class Box extends JComponent implements Accessible
|
|
{
|
|
private static final long serialVersionUID = 1525417495883046342L;
|
|
|
|
/**
|
|
* Provides accessibility support for <code>Box</code>es.
|
|
*/
|
|
protected class AccessibleBox extends Container.AccessibleAWTContainer
|
|
{
|
|
private static final long serialVersionUID = -7775079816389931944L;
|
|
|
|
protected AccessibleBox()
|
|
{
|
|
// Nothing to do here.
|
|
}
|
|
|
|
public AccessibleRole getAccessibleRole()
|
|
{
|
|
return null;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* A component that servers as a filler in BoxLayout controlled containers.
|
|
*/
|
|
public static class Filler extends JComponent implements Accessible
|
|
{
|
|
private static final long serialVersionUID = -1204263191910183998L;
|
|
|
|
/**
|
|
* Provides accessibility support for <code>Box.Filler</code>.
|
|
*/
|
|
protected class AccessibleBoxFiller
|
|
extends Component.AccessibleAWTComponent
|
|
{
|
|
private static final long serialVersionUID = 164963348357479321L;
|
|
|
|
protected AccessibleBoxFiller()
|
|
{
|
|
// Nothing to do here.
|
|
}
|
|
|
|
public AccessibleRole getAccessibleRole()
|
|
{
|
|
return null;
|
|
}
|
|
}
|
|
|
|
private transient Dimension min, pref, max;
|
|
|
|
/**
|
|
* Creates a new instance of Filler.
|
|
*
|
|
* @param min the minimum size of the filler.
|
|
* @param pref the preferred size of the filler.
|
|
* @param max the maximum size of the filler.
|
|
*/
|
|
public Filler(Dimension min, Dimension pref, Dimension max)
|
|
{
|
|
changeShape(min, pref, max);
|
|
}
|
|
|
|
/**
|
|
* Changes the dimensions of this Filler.
|
|
*
|
|
* @param min the new minimum size of the filler.
|
|
* @param pref the new preferred size of the filler.
|
|
* @param max the new maximum size of the filler.
|
|
*/
|
|
public void changeShape(Dimension min, Dimension pref, Dimension max)
|
|
{
|
|
this.min = min;
|
|
this.pref = pref;
|
|
this.max = max;
|
|
}
|
|
|
|
public AccessibleContext getAccessibleContext()
|
|
{
|
|
if (accessibleContext == null)
|
|
accessibleContext = new AccessibleBoxFiller();
|
|
return accessibleContext;
|
|
}
|
|
|
|
/**
|
|
* Returns the maximum size of this Filler.
|
|
*
|
|
* @return the maximum size of this Filler.
|
|
*/
|
|
public Dimension getMaximumSize()
|
|
{
|
|
return max;
|
|
}
|
|
|
|
/**
|
|
* Returns the minimum size of this Filler.
|
|
*
|
|
* @return the minimum size of this Filler.
|
|
*/
|
|
public Dimension getMinimumSize()
|
|
{
|
|
return min;
|
|
}
|
|
|
|
/**
|
|
* Returns the preferred size of this Filler.
|
|
*
|
|
* @return the preferred size of this Filler.
|
|
*/
|
|
public Dimension getPreferredSize()
|
|
{
|
|
return pref;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Creates a new Box component, that lays out its children according
|
|
* to the <code>axis</code> parameter.
|
|
*
|
|
* @param axis the orientation of the BoxLayout.
|
|
*
|
|
* @see BoxLayout#X_AXIS
|
|
* @see BoxLayout#Y_AXIS
|
|
* @see BoxLayout#LINE_AXIS
|
|
* @see BoxLayout#PAGE_AXIS
|
|
*/
|
|
public Box(int axis)
|
|
{
|
|
super.setLayout(new BoxLayout(this, axis));
|
|
}
|
|
|
|
/**
|
|
* Creates a filler component which acts as glue between components.
|
|
* It does not take space unless some extra space is available. If extra
|
|
* space is available, this component can expand in both X and Y directions.
|
|
*
|
|
* @return a glue-like filler component.
|
|
*/
|
|
public static Component createGlue()
|
|
{
|
|
Filler glue = new Filler(new Dimension(0, 0), new Dimension(0, 0),
|
|
new Dimension(Short.MAX_VALUE, Short.MAX_VALUE));
|
|
return glue;
|
|
}
|
|
|
|
public static Box createHorizontalBox()
|
|
{
|
|
return new Box(BoxLayout.X_AXIS);
|
|
}
|
|
|
|
/**
|
|
* Creates a filler component which acts as glue between components.
|
|
* It does not take space unless some extra space is available. If extra
|
|
* space is available, this component can expand in the X direction.
|
|
*
|
|
* @return a glue-like filler component.
|
|
*/
|
|
public static Component createHorizontalGlue()
|
|
{
|
|
Filler glue = new Filler(new Dimension(0, 0), new Dimension(0, 0),
|
|
new Dimension(Short.MAX_VALUE, 0));
|
|
return glue;
|
|
}
|
|
|
|
/**
|
|
* Creates a filler component which acts as strut between components.
|
|
* It will fill exactly the specified horizontal size.
|
|
*
|
|
* @param width the width of this strut in pixels.
|
|
*
|
|
* @return a strut-like filler component.
|
|
*/
|
|
public static Component createHorizontalStrut(int width)
|
|
{
|
|
Filler strut = new Filler(new Dimension(width, 0),
|
|
new Dimension(width, 0),
|
|
new Dimension(width, Integer.MAX_VALUE));
|
|
return strut;
|
|
}
|
|
|
|
public static Component createRigidArea(Dimension d)
|
|
{
|
|
return new Filler(d, d, d);
|
|
}
|
|
|
|
public static Box createVerticalBox()
|
|
{
|
|
return new Box(BoxLayout.Y_AXIS);
|
|
}
|
|
|
|
/**
|
|
* Creates a filler component which acts as glue between components.
|
|
* It does not take space unless some extra space is available. If extra
|
|
* space is available, this component can expand in the Y direction.
|
|
*
|
|
* @return a glue-like filler component.
|
|
*/
|
|
public static Component createVerticalGlue()
|
|
{
|
|
return createGlue();
|
|
}
|
|
|
|
/**
|
|
* Creates a filler component which acts as strut between components.
|
|
* It will fill exactly the specified vertical size.
|
|
*
|
|
* @param height the height of this strut in pixels.
|
|
*
|
|
* @return a strut-like filler component.
|
|
*/
|
|
public static Component createVerticalStrut(int height)
|
|
{
|
|
Filler strut = new Filler(new Dimension(0, height),
|
|
new Dimension(0, height),
|
|
new Dimension(Integer.MAX_VALUE, height));
|
|
return strut;
|
|
}
|
|
|
|
public void setLayout(LayoutManager l)
|
|
{
|
|
throw new AWTError("Not allowed to set layout managers for boxes.");
|
|
}
|
|
|
|
public AccessibleContext getAccessibleContext()
|
|
{
|
|
if (accessibleContext == null)
|
|
accessibleContext = new AccessibleBox();
|
|
return accessibleContext;
|
|
}
|
|
|
|
|
|
}
|