]> git.saurik.com Git - wxWidgets.git/blob - include/wx/x11/region.h
fixes to the new pointer array implementation
[wxWidgets.git] / include / wx / x11 / region.h
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: region.h
3 // Purpose: wxRegion class
4 // Author: Julian Smart
5 // Modified by:
6 // Created: 17/09/98
7 // RCS-ID: $Id$
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 #ifdef __GNUG__
16 #pragma interface "region.h"
17 #endif
18
19 #include "wx/list.h"
20 #include "wx/gdiobj.h"
21 #include "wx/gdicmn.h"
22
23 //-----------------------------------------------------------------------------
24 // classes
25 //-----------------------------------------------------------------------------
26
27 class wxRegion;
28
29 //-----------------------------------------------------------------------------
30 // constants
31 //-----------------------------------------------------------------------------
32
33 enum wxRegionContain
34 {
35 wxOutRegion = 0,
36 wxPartRegion = 1,
37 wxInRegion = 2
38 };
39
40 // So far, for internal use only
41 enum wxRegionOp
42 {
43 wxRGN_AND, // Creates the intersection of the two combined regions.
44 wxRGN_COPY, // Creates a copy of the region identified by hrgnSrc1.
45 wxRGN_DIFF, // Combines the parts of hrgnSrc1 that are not part of hrgnSrc2.
46 wxRGN_OR, // Creates the union of two combined regions.
47 wxRGN_XOR // Creates the union of two combined regions except for any overlapping areas.
48 };
49
50 // ----------------------------------------------------------------------------
51 // wxRegion
52 // ----------------------------------------------------------------------------
53
54 class wxRegion : public wxGDIObject
55 {
56 public:
57 wxRegion() { }
58
59 wxRegion( wxCoord x, wxCoord y, wxCoord w, wxCoord h )
60 {
61 InitRect(x, y, w, h);
62 }
63
64 wxRegion( const wxPoint& topLeft, const wxPoint& bottomRight )
65 {
66 InitRect(topLeft.x, topLeft.y,
67 bottomRight.x - topLeft.x, bottomRight.y - topLeft.y);
68 }
69
70 wxRegion( const wxRect& rect )
71 {
72 InitRect(rect.x, rect.y, rect.width, rect.height);
73 }
74
75 wxRegion( size_t n, const wxPoint *points, int fillStyle = wxODDEVEN_RULE );
76 ~wxRegion();
77
78 wxRegion( const wxRegion& region ) { 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 WXRegion *GetX11Region() 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 #endif
168 // _WX_REGION_H_