]>
Commit | Line | Data |
---|---|---|
1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: wx/gtk/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 _WX_GTK_REGION_H_ | |
11 | #define _WX_GTK_REGION_H_ | |
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, | |
34 | wxPartRegion = 1, | |
35 | wxInRegion = 2 | |
36 | }; | |
37 | ||
38 | // So far, for internal use only | |
39 | enum wxRegionOp | |
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. | |
46 | }; | |
47 | ||
48 | // ---------------------------------------------------------------------------- | |
49 | // wxRegion | |
50 | // ---------------------------------------------------------------------------- | |
51 | ||
52 | class wxRegion : public wxGDIObject | |
53 | { | |
54 | public: | |
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 ); | |
74 | ~wxRegion(); | |
75 | ||
76 | wxRegion( const wxRegion& region ) | |
77 | : wxGDIObject() | |
78 | { Ref(region); } | |
79 | wxRegion& operator = ( const wxRegion& region ) { Ref(region); return *this; } | |
80 | ||
81 | bool Ok() const { return m_refData != NULL; } | |
82 | ||
83 | bool operator == ( const wxRegion& region ); | |
84 | bool operator != ( const wxRegion& region ) { return !(*this == region); } | |
85 | ||
86 | void Clear(); | |
87 | ||
88 | bool Offset( wxCoord x, wxCoord y ); | |
89 | ||
90 | bool Union( wxCoord x, wxCoord y, wxCoord width, wxCoord height ); | |
91 | bool Union( const wxRect& rect ); | |
92 | bool Union( const wxRegion& region ); | |
93 | ||
94 | bool Intersect( wxCoord x, wxCoord y, wxCoord width, wxCoord height ); | |
95 | bool Intersect( const wxRect& rect ); | |
96 | bool Intersect( const wxRegion& region ); | |
97 | ||
98 | bool Subtract( wxCoord x, wxCoord y, wxCoord width, wxCoord height ); | |
99 | bool Subtract( const wxRect& rect ); | |
100 | bool Subtract( const wxRegion& region ); | |
101 | ||
102 | bool Xor( wxCoord x, wxCoord y, wxCoord width, wxCoord height ); | |
103 | bool Xor( const wxRect& rect ); | |
104 | bool Xor( const wxRegion& region ); | |
105 | ||
106 | void GetBox( wxCoord& x, wxCoord& y, wxCoord&w, wxCoord &h ) const; | |
107 | wxRect GetBox() const ; | |
108 | ||
109 | bool Empty() const; | |
110 | bool IsEmpty() const { return Empty(); } | |
111 | ||
112 | wxRegionContain Contains( wxCoord x, wxCoord y ) const; | |
113 | wxRegionContain Contains( wxCoord x, wxCoord y, wxCoord w, wxCoord h ) const; | |
114 | wxRegionContain Contains(const wxPoint& pt) const; | |
115 | wxRegionContain Contains(const wxRect& rect) const; | |
116 | ||
117 | public: | |
118 | GdkRegion *GetRegion() const; | |
119 | ||
120 | protected: | |
121 | // ref counting code | |
122 | virtual wxObjectRefData *CreateRefData() const; | |
123 | virtual wxObjectRefData *CloneRefData(const wxObjectRefData *data) const; | |
124 | ||
125 | // common part of ctors for a rectangle region | |
126 | void InitRect(wxCoord x, wxCoord y, wxCoord w, wxCoord h); | |
127 | ||
128 | private: | |
129 | DECLARE_DYNAMIC_CLASS(wxRegion); | |
130 | }; | |
131 | ||
132 | // ---------------------------------------------------------------------------- | |
133 | // wxRegionIterator: decomposes a region into rectangles | |
134 | // ---------------------------------------------------------------------------- | |
135 | ||
136 | class wxRegionIterator: public wxObject | |
137 | { | |
138 | public: | |
139 | wxRegionIterator(); | |
140 | wxRegionIterator(const wxRegion& region); | |
141 | ||
142 | void Reset() { m_current = 0u; } | |
143 | void Reset(const wxRegion& region); | |
144 | ||
145 | operator bool () const; | |
146 | bool HaveRects() const; | |
147 | ||
148 | void operator ++ (); | |
149 | void operator ++ (int); | |
150 | ||
151 | wxCoord GetX() const; | |
152 | wxCoord GetY() const; | |
153 | wxCoord GetW() const; | |
154 | wxCoord GetWidth() const { return GetW(); } | |
155 | wxCoord GetH() const; | |
156 | wxCoord GetHeight() const { return GetH(); } | |
157 | wxRect GetRect() const; | |
158 | ||
159 | private: | |
160 | size_t m_current; | |
161 | wxRegion m_region; | |
162 | ||
163 | private: | |
164 | DECLARE_DYNAMIC_CLASS(wxRegionIterator); | |
165 | }; | |
166 | ||
167 | ||
168 | #endif | |
169 | // _WX_GTK_REGION_H_ |