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/*
* Copyright 2005-2008 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
package sun.awt;
/**
* Interface used by Swing to make copies from the Swing back buffer
* more optimal when using BufferStrategy; no need to copy the entire
* buffer when only a small sub-region has changed.
* @see javax.swing.BufferStrategyPaintManager
*
*/
public interface SubRegionShowable {
/**
* Shows the specific subregion.
*/
public void show(int x1, int y1, int x2, int y2);
/**
* Shows the specified region if the buffer is not lost and the dimensions
* of the back-buffer match those of the component.
*
* @return true if successful
*/
// NOTE: this is invoked by swing on the toolkit thread!
public boolean showIfNotLost(int x1, int y1, int x2, int y2);
}
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