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lightning-sunbird  0.9+nobinonly
gfxRegion.h
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00001 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
00002  * ***** BEGIN LICENSE BLOCK *****
00003  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00004  *
00005  * The contents of this file are subject to the Mozilla Public License Version
00006  * 1.1 (the "License"); you may not use this file except in compliance with
00007  * the License. You may obtain a copy of the License at
00008  * http://www.mozilla.org/MPL/
00009  *
00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00012  * for the specific language governing rights and limitations under the
00013  * License.
00014  *
00015  * The Original Code is Oracle Corporation code.
00016  *
00017  * The Initial Developer of the Original Code is Oracle Corporation.
00018  * Portions created by the Initial Developer are Copyright (C) 2005
00019  * the Initial Developer. All Rights Reserved.
00020  *
00021  * Contributor(s):
00022  *   Stuart Parmenter <pavlov@pavlov.net>
00023  *
00024  * Alternatively, the contents of this file may be used under the terms of
00025  * either the GNU General Public License Version 2 or later (the "GPL"), or
00026  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00027  * in which case the provisions of the GPL or the LGPL are applicable instead
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00036  * ***** END LICENSE BLOCK ***** */
00037 
00038 /*
00039  * *********************************************************
00040  * This file is under construction.  Ignore it for a while.
00041  * *********************************************************
00042  */
00043 
00044 class gfxRegion {
00045 public:
00046     gfxRegion(const gfxRegion& r);
00047     gfxRegion(const gfxRect& r);
00048 
00049     gfxRegion& operator=(const gfxRegion& r);
00050     gfxRegion& operator=(const gfxRect& r);
00051 
00052     int operator==(const gfxRegion& r) const;
00053     int operator!=(const gfxRegion& r) const;
00054 
00055     gfxPoint& operator+=(const gfxRegion& r); // Union
00056     gfxPoint& operator+=(const gfxRect& r); // Union
00057     gfxPoint& operator-=(const gfxRegion& r); // Subtract
00058     gfxPoint& operator-=(const gfxRect& r); // Subtract
00059 
00060 
00061 
00062     void SetTo(const nsIRegion &aRegion);
00063     void SetTo(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight);
00064     void Intersect(const nsIRegion &aRegion);
00065     void Intersect(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight);
00066     void Union(const nsIRegion &aRegion);
00067     void Union(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight);
00068     void Subtract(const nsIRegion &aRegion);
00069     void Subtract(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight);
00070     PRBool IsEmpty(void);
00071     PRBool IsEqual(const nsIRegion &aRegion);
00072     void GetBoundingBox(PRInt32 *aX, PRInt32 *aY, PRInt32 *aWidth, PRInt32 *aHeight);
00073     void Offset(PRInt32 aXOffset, PRInt32 aYOffset);
00074     PRBool ContainsRect(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight);
00075     void GetRects(nsRegionRectSet **aRects);
00076     void FreeRects(nsRegionRectSet *aRects);
00077     void GetNativeRegion(void *&aRegion) const;
00078     void GetRegionComplexity(nsRegionComplexity &aComplexity) const;
00079     void GetNumRects(PRUint32 *aRects) const;
00080 };