1///////////////////////////////////////////////////////////////////////////// 2// Name: wx/x11/region.h 3// Purpose: wxRegion class 4// Author: Julian Smart 5// Modified by: 6// Created: 17/09/98 7// RCS-ID: $Id: region.h 41429 2006-09-25 11:47:23Z VZ $ 8// Copyright: (c) Julian Smart, Robert Roebling 9// Licence: wxWindows licence 10///////////////////////////////////////////////////////////////////////////// 11 12#ifndef _WX_REGION_H_ 13#define _WX_REGION_H_ 14 15#include "wx/list.h" 16 17// ---------------------------------------------------------------------------- 18// wxRegion 19// ---------------------------------------------------------------------------- 20 21class WXDLLIMPEXP_CORE wxRegion : public wxRegionBase 22{ 23public: 24 wxRegion() { } 25 26 wxRegion( wxCoord x, wxCoord y, wxCoord w, wxCoord h ) 27 { 28 InitRect(x, y, w, h); 29 } 30 31 wxRegion( const wxPoint& topLeft, const wxPoint& bottomRight ) 32 { 33 InitRect(topLeft.x, topLeft.y, 34 bottomRight.x - topLeft.x, bottomRight.y - topLeft.y); 35 } 36 37 wxRegion( const wxRect& rect ) 38 { 39 InitRect(rect.x, rect.y, rect.width, rect.height); 40 } 41 42 wxRegion( size_t n, const wxPoint *points, int fillStyle = wxODDEVEN_RULE ); 43 44 wxRegion( const wxBitmap& bmp) 45 { 46 Union(bmp); 47 } 48 wxRegion( const wxBitmap& bmp, 49 const wxColour& transColour, int tolerance = 0) 50 { 51 Union(bmp, transColour, tolerance); 52 } 53 54 virtual ~wxRegion(); 55 56 // wxRegionBase methods 57 virtual void Clear(); 58 virtual bool IsEmpty() const; 59 60public: 61 WXRegion *GetX11Region() const; 62 63protected: 64 // ref counting code 65 virtual wxObjectRefData *CreateRefData() const; 66 virtual wxObjectRefData *CloneRefData(const wxObjectRefData *data) const; 67 68 // wxRegionBase pure virtuals 69 virtual bool DoIsEqual(const wxRegion& region) const; 70 virtual bool DoGetBox(wxCoord& x, wxCoord& y, wxCoord& w, wxCoord& h) const; 71 virtual wxRegionContain DoContainsPoint(wxCoord x, wxCoord y) const; 72 virtual wxRegionContain DoContainsRect(const wxRect& rect) const; 73 74 virtual bool DoOffset(wxCoord x, wxCoord y); 75 virtual bool DoUnionWithRect(const wxRect& rect); 76 virtual bool DoUnionWithRegion(const wxRegion& region); 77 virtual bool DoIntersect(const wxRegion& region); 78 virtual bool DoSubtract(const wxRegion& region); 79 virtual bool DoXor(const wxRegion& region); 80 81 // common part of ctors for a rectangle region 82 void InitRect(wxCoord x, wxCoord y, wxCoord w, wxCoord h); 83 84private: 85 DECLARE_DYNAMIC_CLASS(wxRegion) 86}; 87 88// ---------------------------------------------------------------------------- 89// wxRegionIterator: decomposes a region into rectangles 90// ---------------------------------------------------------------------------- 91 92class WXDLLIMPEXP_CORE wxRegionIterator: public wxObject 93{ 94public: 95 wxRegionIterator(); 96 wxRegionIterator(const wxRegion& region); 97 98 void Reset() { m_current = 0u; } 99 void Reset(const wxRegion& region); 100 101 operator bool () const; 102 bool HaveRects() const; 103 104 void operator ++ (); 105 void operator ++ (int); 106 107 wxCoord GetX() const; 108 wxCoord GetY() const; 109 wxCoord GetW() const; 110 wxCoord GetWidth() const { return GetW(); } 111 wxCoord GetH() const; 112 wxCoord GetHeight() const { return GetH(); } 113 wxRect GetRect() const; 114 115private: 116 size_t m_current; 117 wxRegion m_region; 118 119private: 120 DECLARE_DYNAMIC_CLASS(wxRegionIterator) 121}; 122 123#endif 124// _WX_REGION_H_ 125