| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: region.h |
| 3 | // Purpose: |
| 4 | // Author: Robert Roebling |
| 5 | // Id: $Id$ |
| 6 | // Copyright: (c) 1998 Robert Roebling |
| 7 | // Licence: wxWindows licence |
| 8 | ///////////////////////////////////////////////////////////////////////////// |
| 9 | |
| 10 | #ifndef __REGIONH__ |
| 11 | #define __REGIONH__ |
| 12 | |
| 13 | #ifdef __GNUG__ |
| 14 | #pragma interface |
| 15 | #endif |
| 16 | |
| 17 | #include "wx/list.h" |
| 18 | #include "wx/gdiobj.h" |
| 19 | #include "wx/gdicmn.h" |
| 20 | |
| 21 | //----------------------------------------------------------------------------- |
| 22 | // classes |
| 23 | //----------------------------------------------------------------------------- |
| 24 | |
| 25 | class wxRegion; |
| 26 | |
| 27 | //----------------------------------------------------------------------------- |
| 28 | // constants |
| 29 | //----------------------------------------------------------------------------- |
| 30 | |
| 31 | enum wxRegionContain |
| 32 | { |
| 33 | wxOutRegion = 0, wxPartRegion = 1, wxInRegion = 2 |
| 34 | }; |
| 35 | |
| 36 | // So far, for internal use only |
| 37 | enum wxRegionOp { |
| 38 | wxRGN_AND, // Creates the intersection of the two combined regions. |
| 39 | wxRGN_COPY, // Creates a copy of the region identified by hrgnSrc1. |
| 40 | wxRGN_DIFF, // Combines the parts of hrgnSrc1 that are not part of hrgnSrc2. |
| 41 | wxRGN_OR, // Creates the union of two combined regions. |
| 42 | wxRGN_XOR // Creates the union of two combined regions except for any overlapping areas. |
| 43 | }; |
| 44 | |
| 45 | //----------------------------------------------------------------------------- |
| 46 | // wxRegion |
| 47 | //----------------------------------------------------------------------------- |
| 48 | |
| 49 | class wxRegion : public wxGDIObject |
| 50 | { |
| 51 | DECLARE_DYNAMIC_CLASS(wxRegion); |
| 52 | |
| 53 | public: |
| 54 | |
| 55 | wxRegion( long x, long y, long w, long h ); |
| 56 | wxRegion( const wxPoint& topLeft, const wxPoint& bottomRight ); |
| 57 | wxRegion( const wxRect& rect ); |
| 58 | wxRegion(void); |
| 59 | ~wxRegion(void); |
| 60 | |
| 61 | inline wxRegion( const wxRegion& r ): wxGDIObject() |
| 62 | { Ref(r); } |
| 63 | inline wxRegion& operator = ( const wxRegion& r ) |
| 64 | { Ref(r); return (*this); } |
| 65 | |
| 66 | bool operator == ( const wxRegion& region ); |
| 67 | bool operator != ( const wxRegion& region ); |
| 68 | |
| 69 | void Clear(void); |
| 70 | |
| 71 | bool Union( long x, long y, long width, long height ); |
| 72 | bool Union( const wxRect& rect ); |
| 73 | bool Union( const wxRegion& region ); |
| 74 | |
| 75 | bool Intersect( long x, long y, long width, long height ); |
| 76 | bool Intersect( const wxRect& rect ); |
| 77 | bool Intersect( const wxRegion& region ); |
| 78 | |
| 79 | bool Subtract( long x, long y, long width, long height ); |
| 80 | bool Subtract( const wxRect& rect ); |
| 81 | bool Subtract( const wxRegion& region ); |
| 82 | |
| 83 | bool Xor( long x, long y, long width, long height ); |
| 84 | bool Xor( const wxRect& rect ); |
| 85 | bool Xor( const wxRegion& region ); |
| 86 | |
| 87 | void GetBox( long& x, long& y, long&w, long &h ) const; |
| 88 | wxRect GetBox(void) const ; |
| 89 | |
| 90 | bool Empty(void) const; |
| 91 | |
| 92 | wxRegionContain Contains( long x, long y ) const; |
| 93 | wxRegionContain Contains( long x, long y, long w, long h ) const; |
| 94 | wxRegionContain Contains(const wxPoint& pt) const; |
| 95 | wxRegionContain Contains(const wxRect& rect) const; |
| 96 | |
| 97 | public: |
| 98 | |
| 99 | wxList *GetRectList() const; |
| 100 | GdkRegion *GetRegion(void) const; |
| 101 | }; |
| 102 | |
| 103 | class wxRegionIterator: public wxObject |
| 104 | { |
| 105 | DECLARE_DYNAMIC_CLASS(wxRegionIterator); |
| 106 | |
| 107 | public: |
| 108 | |
| 109 | wxRegionIterator(void); |
| 110 | wxRegionIterator(const wxRegion& region); |
| 111 | |
| 112 | void Reset(void) { m_current = 0; } |
| 113 | void Reset(const wxRegion& region); |
| 114 | |
| 115 | operator bool (void) const; |
| 116 | bool HaveRects(void) const; |
| 117 | |
| 118 | void operator ++ (void); |
| 119 | void operator ++ (int); |
| 120 | |
| 121 | long GetX(void) const; |
| 122 | long GetY(void) const; |
| 123 | long GetW(void) const; |
| 124 | long GetWidth(void) const { return GetW(); } |
| 125 | long GetH(void) const; |
| 126 | long GetHeight(void) const { return GetH(); } |
| 127 | wxRect GetRect() const { return wxRect(GetX(), GetY(), GetWidth(), GetHeight()); } |
| 128 | |
| 129 | private: |
| 130 | |
| 131 | long m_current; |
| 132 | wxRegion m_region; |
| 133 | }; |
| 134 | |
| 135 | |
| 136 | #endif |
| 137 | // __REGIONH__ |