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125 lines
3.9 KiB
Java
125 lines
3.9 KiB
Java
/* IconUIResource.java --
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Copyright (C) 2002, 2003, 2004, 2006, Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package javax.swing.plaf;
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import java.awt.Component;
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import java.awt.Graphics;
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import java.io.Serializable;
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import javax.swing.Icon;
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/**
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* An icon that is marked as <code>UIResource</code>, which
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* indicates that it has been installed by a pluggable
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* LookAndFeel. Such icons are replaced when the LookAndFeel
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* changes.
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*
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* @author Andrew Selkirk (aselkirk@sympatico.ca)
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* @author Sascha Brawer (brawer@dandelis.ch)
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*/
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public class IconUIResource implements Icon, UIResource, Serializable
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{
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/**
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* Verified using the <code>serialver</code> tool of Sun JDK 1.4.1_01
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* on GNU/Linux 2.4.18.
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*/
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static final long serialVersionUID = 3327049506004830542L;
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/**
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* The icon that is wrapped by this <code>IconUIResource</code> (never
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* <code>null</code>).
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*/
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private Icon delegate;
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/**
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* Constructs a <code>IconUIResource</code> that wraps another
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* icon. All messages are forwarded to the delegate icon.
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*
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* @param delegate the icon that is wrapped by this
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* <code>IconUIResource</code> (<code>null</code> not permitted).
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*/
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public IconUIResource(Icon delegate)
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{
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if (delegate == null)
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throw new IllegalArgumentException("Null 'delegate' argument.");
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this.delegate = delegate;
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}
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/**
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* Paints the icon by asking the delegate icon to paint itself.
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*
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* @param c the Component whose icon is being painted. Some icons
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* use this argument to retrieve properties like the
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* background color.
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*
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* @param g the graphics into which the icon will be painted.
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*
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* @param x the horizontal position of the icon.
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*
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* @param y the vertical position of the icon.
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*/
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public void paintIcon(Component c, Graphics g, int x, int y)
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{
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delegate.paintIcon(c, g, x, y);
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}
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/**
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* Returns the width of the icon in pixels. The implementation
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* determines and returns the width of the delegate icon.
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*/
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public int getIconWidth()
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{
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return delegate.getIconWidth();
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}
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/**
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* Returns the height of the icon in pixels. The implementation
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* determines and returns the height of the delegate icon.
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*/
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public int getIconHeight()
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{
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return delegate.getIconHeight();
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}
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}
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