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00001 /******************************************************************************** 00002 * * 00003 * C l i p p i n g R e g i o n * 00004 * * 00005 ********************************************************************************* 00006 * Copyright (C) 2000,2002 by Jeroen van der Zijp. All Rights Reserved. * 00007 ********************************************************************************* 00008 * This library is free software; you can redistribute it and/or * 00009 * modify it under the terms of the GNU Lesser General Public * 00010 * License as published by the Free Software Foundation; either * 00011 * version 2.1 of the License, or (at your option) any later version. * 00012 * * 00013 * This library is distributed in the hope that it will be useful, * 00014 * but WITHOUT ANY WARRANTY; without even the implied warranty of * 00015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * 00016 * Lesser General Public License for more details. * 00017 * * 00018 * You should have received a copy of the GNU Lesser General Public * 00019 * License along with this library; if not, write to the Free Software * 00020 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. * 00021 ********************************************************************************* 00022 * $Id: FXRegion.h,v 1.6 2002/01/18 22:42:54 jeroen Exp $ * 00023 ********************************************************************************/ 00024 #ifndef FXREGION_H 00025 #define FXREGION_H 00026 00027 00028 /// Region 00029 class FXAPI FXRegion { 00030 friend class FXDC; 00031 friend class FXDCWindow; 00032 private: 00033 void *region; 00034 public: 00035 00036 /// Construct new empty region 00037 FXRegion(); 00038 00039 /// Construct new region copied from region r 00040 FXRegion(const FXRegion& r); 00041 00042 /// Construct new region set to given rectangle 00043 FXRegion(FXint x,FXint y,FXint w,FXint h); 00044 00045 /// Assign region r to this one 00046 FXRegion &operator=(const FXRegion& r); 00047 00048 /// Return TRUE if region is empty 00049 FXbool empty() const; 00050 00051 /// Return TRUE if region contains point 00052 FXbool contains(FXint x,FXint y) const; 00053 00054 /// Return TRUE if region contains rectangle 00055 FXbool contains(FXint x,FXint y,FXint w,FXint h) const; 00056 00057 /// Return bounding box 00058 void bounds(FXRectangle& r) const; 00059 00060 /// Offset region by dx,dy 00061 FXRegion& offset(FXint dx,FXint dy); 00062 00063 /// Union region r with this one 00064 FXRegion& operator+=(const FXRegion& r); 00065 00066 /// Intersect region r with this one 00067 FXRegion& operator*=(const FXRegion& r); 00068 00069 /// Substract region r from this one 00070 FXRegion& operator-=(const FXRegion& r); 00071 00072 /// Xor region r with this one 00073 FXRegion& operator^=(const FXRegion& r); 00074 00075 /// Union of region r1 and region r2 00076 friend FXAPI FXRegion operator+(const FXRegion& r1,const FXRegion& r2); 00077 00078 /// Intersection of region r1 and region r2 00079 friend FXAPI FXRegion operator*(const FXRegion& r1,const FXRegion& r2); 00080 00081 /// Substract region r2 from region r1 00082 friend FXAPI FXRegion operator-(const FXRegion& r1,const FXRegion& r2); 00083 00084 /// Xor of region r1 and region r2 00085 friend FXAPI FXRegion operator^(const FXRegion& r1,const FXRegion& r2); 00086 00087 /// Return TRUE if region equal to this one 00088 friend FXAPI FXbool operator==(const FXRegion& r1,const FXRegion& r2); 00089 00090 /// Return TRUE if region not equal to this one 00091 friend FXAPI FXbool operator!=(const FXRegion& r1,const FXRegion& r2); 00092 00093 /// Destroy region 00094 ~FXRegion(); 00095 }; 00096 00097 00098 #endif