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nsRegionQt.h
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00001 /* -*- Mode: C++; tab-width: 4; 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
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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 mozilla.org code.
00016  *
00017  * The Initial Developer of the Original Code is
00018  * Netscape Communications Corporation.
00019  * Portions created by the Initial Developer are Copyright (C) 1998
00020  * the Initial Developer. All Rights Reserved.
00021  *
00022  * Contributor(s):
00023  *   Lars Knoll <knoll@kde.org>
00024  *   Zack Rusin <zack@kde.org>
00025  *   John C. Griggs <johng@corel.com>
00026  *
00027  * Alternatively, the contents of this file may be used under the terms of
00028  * either the GNU General Public License Version 2 or later (the "GPL"), or
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00038  *
00039  * ***** END LICENSE BLOCK ***** */
00040 
00041 #ifndef nsRegionQt_h___
00042 #define nsRegionQt_h___
00043 
00044 #include "nsIRegion.h"
00045 
00046 #include <qregion.h>
00047 
00048 class nsRegionQt : public nsIRegion
00049 {
00050 public:
00051     nsRegionQt();
00052     virtual ~nsRegionQt();
00053 
00054     NS_DECL_ISUPPORTS
00055 
00056     virtual nsresult Init();
00057 
00058     virtual void SetTo(const nsIRegion &aRegion);
00059     virtual void SetTo(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight);
00060     void SetTo(const nsRegionQt *aRegion);
00061     virtual void Intersect(const nsIRegion &aRegion);
00062     virtual void Intersect(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight);
00063     virtual void Union(const nsIRegion &aRegion);
00064     virtual void Union(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight);
00065     virtual void Subtract(const nsIRegion &aRegion);
00066     virtual void Subtract(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight);
00067     virtual PRBool IsEmpty(void);
00068     virtual PRBool IsEqual(const nsIRegion &aRegion);
00069     virtual void GetBoundingBox(PRInt32 *aX, PRInt32 *aY, PRInt32 *aWidth, PRInt32 *aHeight);
00070     virtual void Offset(PRInt32 aXOffset, PRInt32 aYOffset);
00071     virtual PRBool ContainsRect(PRInt32 aX, PRInt32 aY, PRInt32 aWidth, PRInt32 aHeight);
00072     NS_IMETHOD GetRects(nsRegionRectSet **aRects);
00073     NS_IMETHOD FreeRects(nsRegionRectSet *aRects);
00074     NS_IMETHOD GetNativeRegion(void *&aRegion) const;
00075     NS_IMETHOD GetRegionComplexity(nsRegionComplexity &aComplexity) const;
00076     NS_IMETHOD GetNumRects(PRUint32* aRects) const;
00077 
00078 private:
00079     virtual void SetRegionEmpty();
00080 
00081 private:
00082     QRegion  mRegion;
00083 };
00084 
00085 #endif  // nsRegionQt_h___