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c801d85f | 1 | ///////////////////////////////////////////////////////////////////////////// |
5fc7ede9 | 2 | // Name: wx/gtk/region.h |
c801d85f KB |
3 | // Purpose: |
4 | // Author: Robert Roebling | |
58614078 RR |
5 | // Id: $Id$ |
6 | // Copyright: (c) 1998 Robert Roebling | |
5fc7ede9 | 7 | // Licence: wxWindows licence |
c801d85f KB |
8 | ///////////////////////////////////////////////////////////////////////////// |
9 | ||
5fc7ede9 VZ |
10 | #ifndef _WX_GTK_REGION_H_ |
11 | #define _WX_GTK_REGION_H_ | |
c801d85f KB |
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 | ||
5fc7ede9 | 31 | enum wxRegionContain |
c801d85f | 32 | { |
1e6feb95 VZ |
33 | wxOutRegion = 0, |
34 | wxPartRegion = 1, | |
e1208c31 | 35 | wxInRegion = 2 |
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36 | }; |
37 | ||
38 | // So far, for internal use only | |
1e6feb95 | 39 | enum wxRegionOp |
e1208c31 RR |
40 | { |
41 | wxRGN_AND, // Creates the intersection of the two combined regions. | |
42 | wxRGN_COPY, // Creates a copy of the region identified by hrgnSrc1. | |
43 | wxRGN_DIFF, // Combines the parts of hrgnSrc1 that are not part of hrgnSrc2. | |
44 | wxRGN_OR, // Creates the union of two combined regions. | |
45 | wxRGN_XOR // Creates the union of two combined regions except for any overlapping areas. | |
c801d85f KB |
46 | }; |
47 | ||
1e6feb95 | 48 | // ---------------------------------------------------------------------------- |
c801d85f | 49 | // wxRegion |
1e6feb95 | 50 | // ---------------------------------------------------------------------------- |
c801d85f | 51 | |
5fc7ede9 | 52 | class wxRegion : public wxGDIObject |
c801d85f | 53 | { |
e1208c31 | 54 | public: |
9fe4c99c VZ |
55 | wxRegion() { } |
56 | ||
57 | wxRegion( wxCoord x, wxCoord y, wxCoord w, wxCoord h ) | |
58 | { | |
59 | InitRect(x, y, w, h); | |
60 | } | |
61 | ||
62 | wxRegion( const wxPoint& topLeft, const wxPoint& bottomRight ) | |
63 | { | |
64 | InitRect(topLeft.x, topLeft.y, | |
65 | bottomRight.x - topLeft.x, bottomRight.y - topLeft.y); | |
66 | } | |
67 | ||
68 | wxRegion( const wxRect& rect ) | |
69 | { | |
70 | InitRect(rect.x, rect.y, rect.width, rect.height); | |
71 | } | |
72 | ||
73 | wxRegion( size_t n, const wxPoint *points, int fillStyle = wxODDEVEN_RULE ); | |
c89f5c02 | 74 | ~wxRegion(); |
c801d85f | 75 | |
c89f5c02 RR |
76 | wxRegion( const wxRegion& region ) { Ref(region); } |
77 | wxRegion& operator = ( const wxRegion& region ) { Ref(region); return *this; } | |
78 | ||
79 | bool Ok() const { return m_refData != NULL; } | |
c801d85f | 80 | |
76ed8f8d | 81 | bool operator == ( const wxRegion& region ); |
c89f5c02 | 82 | bool operator != ( const wxRegion& region ) { return !(*this == region); } |
5fc7ede9 | 83 | |
07818da8 | 84 | void Clear(); |
9fe4c99c | 85 | |
35917d22 | 86 | bool Offset( wxCoord x, wxCoord y ); |
c801d85f | 87 | |
5fc7ede9 | 88 | bool Union( wxCoord x, wxCoord y, wxCoord width, wxCoord height ); |
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89 | bool Union( const wxRect& rect ); |
90 | bool Union( const wxRegion& region ); | |
91 | ||
5fc7ede9 | 92 | bool Intersect( wxCoord x, wxCoord y, wxCoord width, wxCoord height ); |
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93 | bool Intersect( const wxRect& rect ); |
94 | bool Intersect( const wxRegion& region ); | |
95 | ||
5fc7ede9 | 96 | bool Subtract( wxCoord x, wxCoord y, wxCoord width, wxCoord height ); |
c801d85f KB |
97 | bool Subtract( const wxRect& rect ); |
98 | bool Subtract( const wxRegion& region ); | |
99 | ||
5fc7ede9 | 100 | bool Xor( wxCoord x, wxCoord y, wxCoord width, wxCoord height ); |
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101 | bool Xor( const wxRect& rect ); |
102 | bool Xor( const wxRegion& region ); | |
103 | ||
5fc7ede9 | 104 | void GetBox( wxCoord& x, wxCoord& y, wxCoord&w, wxCoord &h ) const; |
07818da8 | 105 | wxRect GetBox() const ; |
c801d85f | 106 | |
07818da8 VZ |
107 | bool Empty() const; |
108 | bool IsEmpty() const { return Empty(); } | |
c801d85f | 109 | |
5fc7ede9 VZ |
110 | wxRegionContain Contains( wxCoord x, wxCoord y ) const; |
111 | wxRegionContain Contains( wxCoord x, wxCoord y, wxCoord w, wxCoord h ) const; | |
8429bec1 RR |
112 | wxRegionContain Contains(const wxPoint& pt) const; |
113 | wxRegionContain Contains(const wxRect& rect) const; | |
5fc7ede9 | 114 | |
e1208c31 | 115 | public: |
07818da8 | 116 | GdkRegion *GetRegion() const; |
1e6feb95 VZ |
117 | |
118 | protected: | |
e0f0b197 RR |
119 | // ref counting code |
120 | virtual wxObjectRefData *CreateRefData() const; | |
121 | virtual wxObjectRefData *CloneRefData(const wxObjectRefData *data) const; | |
122 | ||
9fe4c99c VZ |
123 | // common part of ctors for a rectangle region |
124 | void InitRect(wxCoord x, wxCoord y, wxCoord w, wxCoord h); | |
125 | ||
e1208c31 | 126 | private: |
1e6feb95 | 127 | DECLARE_DYNAMIC_CLASS(wxRegion); |
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128 | }; |
129 | ||
1e6feb95 VZ |
130 | // ---------------------------------------------------------------------------- |
131 | // wxRegionIterator: decomposes a region into rectangles | |
132 | // ---------------------------------------------------------------------------- | |
133 | ||
5fc7ede9 | 134 | class wxRegionIterator: public wxObject |
8429bec1 | 135 | { |
738f9e5a | 136 | public: |
07818da8 | 137 | wxRegionIterator(); |
8429bec1 RR |
138 | wxRegionIterator(const wxRegion& region); |
139 | ||
6f2a55e3 | 140 | void Reset() { m_current = 0u; } |
8429bec1 RR |
141 | void Reset(const wxRegion& region); |
142 | ||
07818da8 VZ |
143 | operator bool () const; |
144 | bool HaveRects() const; | |
8429bec1 | 145 | |
07818da8 | 146 | void operator ++ (); |
8429bec1 RR |
147 | void operator ++ (int); |
148 | ||
b02da6b1 VZ |
149 | wxCoord GetX() const; |
150 | wxCoord GetY() const; | |
151 | wxCoord GetW() const; | |
152 | wxCoord GetWidth() const { return GetW(); } | |
153 | wxCoord GetH() const; | |
154 | wxCoord GetHeight() const { return GetH(); } | |
1e6feb95 | 155 | wxRect GetRect() const; |
8429bec1 | 156 | |
738f9e5a | 157 | private: |
6f2a55e3 VZ |
158 | size_t m_current; |
159 | wxRegion m_region; | |
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160 | |
161 | private: | |
162 | DECLARE_DYNAMIC_CLASS(wxRegionIterator); | |
8429bec1 RR |
163 | }; |
164 | ||
165 | ||
c801d85f | 166 | #endif |
5fc7ede9 | 167 | // _WX_GTK_REGION_H_ |