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/*
* Copyright (c) 2011, 2014, Oracle and/or its affiliates. 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. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package com.sun.webkit.graphics;
public abstract class WCPageBackBuffer extends Ref {
public abstract WCGraphicsContext createGraphics();
public abstract void disposeGraphics(WCGraphicsContext gc);
public abstract void flush(WCGraphicsContext gc, int x, int y, int w, int h);
protected abstract void copyArea(int x, int y, int w, int h, int dx, int dy);
/**
* @returs {@code false} if full page repaint is needed after the validation,
* {@code true} otherwise
*/
public abstract boolean validate(int width, int height);
}