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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(); | |
59 | ~wxRegion(); | |
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(); | |
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() const ; | |
89 | ||
90 | bool Empty() const; | |
91 | bool IsEmpty() const { return Empty(); } | |
92 | ||
93 | wxRegionContain Contains( long x, long y ) const; | |
94 | wxRegionContain Contains( long x, long y, long w, long h ) const; | |
95 | wxRegionContain Contains(const wxPoint& pt) const; | |
96 | wxRegionContain Contains(const wxRect& rect) const; | |
97 | ||
98 | public: | |
99 | ||
100 | wxList *GetRectList() const; | |
101 | GdkRegion *GetRegion() const; | |
102 | }; | |
103 | ||
104 | class wxRegionIterator: public wxObject | |
105 | { | |
106 | public: | |
107 | wxRegionIterator(); | |
108 | wxRegionIterator(const wxRegion& region); | |
109 | ||
110 | void Reset() { m_current = 0; } | |
111 | void Reset(const wxRegion& region); | |
112 | ||
113 | operator bool () const; | |
114 | bool HaveRects() const; | |
115 | ||
116 | void operator ++ (); | |
117 | void operator ++ (int); | |
118 | ||
119 | wxCoord GetX() const; | |
120 | wxCoord GetY() const; | |
121 | wxCoord GetW() const; | |
122 | wxCoord GetWidth() const { return GetW(); } | |
123 | wxCoord GetH() const; | |
124 | wxCoord GetHeight() const { return GetH(); } | |
125 | wxRect GetRect() const { return wxRect(GetX(), GetY(), GetWidth(), GetHeight()); } | |
126 | ||
127 | private: | |
128 | long m_current; | |
129 | wxRegion m_region; | |
130 | ||
131 | private: | |
132 | DECLARE_DYNAMIC_CLASS(wxRegionIterator); | |
133 | }; | |
134 | ||
135 | ||
136 | #endif | |
137 | // __REGIONH__ |