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Use proper format in wxGTK clipboard selection handler.
[wxWidgets.git] / include / wx / gtk / region.h
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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 __WXGTK3__
14typedef struct _cairo_region cairo_region_t;
15#endif
16
17// ----------------------------------------------------------------------------
18// wxRegion
19// ----------------------------------------------------------------------------
20
21class WXDLLIMPEXP_CORE wxRegion : public wxRegionBase
22{
23public:
24 wxRegion() { }
25
26 wxRegion( wxCoord x, wxCoord y, wxCoord w, wxCoord h )
27 {
28 InitRect(x, y, w, h);
29 }
30
31 wxRegion( const wxPoint& topLeft, const wxPoint& bottomRight )
32 {
33 InitRect(topLeft.x, topLeft.y,
34 bottomRight.x - topLeft.x, bottomRight.y - topLeft.y);
35 }
36
37 wxRegion( const wxRect& rect )
38 {
39 InitRect(rect.x, rect.y, rect.width, rect.height);
40 }
41
42 wxRegion( size_t n, const wxPoint *points,
43 wxPolygonFillMode fillStyle = wxODDEVEN_RULE );
44
45#if wxUSE_IMAGE
46 wxRegion( const wxBitmap& bmp)
47 {
48 Union(bmp);
49 }
50 wxRegion( const wxBitmap& bmp,
51 const wxColour& transColour, int tolerance = 0)
52 {
53 Union(bmp, transColour, tolerance);
54 }
55#endif // wxUSE_IMAGE
56
57 virtual ~wxRegion();
58
59 // wxRegionBase methods
60 virtual void Clear();
61 virtual bool IsEmpty() const;
62
63#ifdef __WXGTK3__
64 cairo_region_t* GetRegion() const;
65#else
66 wxRegion(const GdkRegion* region);
67 GdkRegion *GetRegion() const;
68#endif
69
70protected:
71 virtual wxGDIRefData *CreateGDIRefData() const;
72 virtual wxGDIRefData *CloneGDIRefData(const wxGDIRefData *data) const;
73
74 // wxRegionBase pure virtuals
75 virtual bool DoIsEqual(const wxRegion& region) const;
76 virtual bool DoGetBox(wxCoord& x, wxCoord& y, wxCoord& w, wxCoord& h) const;
77 virtual wxRegionContain DoContainsPoint(wxCoord x, wxCoord y) const;
78 virtual wxRegionContain DoContainsRect(const wxRect& rect) const;
79
80 virtual bool DoOffset(wxCoord x, wxCoord y);
81 virtual bool DoUnionWithRect(const wxRect& rect);
82 virtual bool DoUnionWithRegion(const wxRegion& region);
83 virtual bool DoIntersect(const wxRegion& region);
84 virtual bool DoSubtract(const wxRegion& region);
85 virtual bool DoXor(const wxRegion& region);
86
87 // common part of ctors for a rectangle region
88 void InitRect(wxCoord x, wxCoord y, wxCoord w, wxCoord h);
89
90private:
91 DECLARE_DYNAMIC_CLASS(wxRegion)
92};
93
94// ----------------------------------------------------------------------------
95// wxRegionIterator: decomposes a region into rectangles
96// ----------------------------------------------------------------------------
97
98class WXDLLIMPEXP_CORE wxRegionIterator: public wxObject
99{
100public:
101 wxRegionIterator();
102 wxRegionIterator(const wxRegion& region);
103 wxRegionIterator(const wxRegionIterator& ri) : wxObject(ri) { Init(); *this = ri; }
104 ~wxRegionIterator();
105
106 wxRegionIterator& operator=(const wxRegionIterator& ri);
107
108 void Reset() { m_current = 0u; }
109 void Reset(const wxRegion& region);
110
111 bool HaveRects() const;
112 operator bool () const { return HaveRects(); }
113
114 wxRegionIterator& operator ++ ();
115 wxRegionIterator operator ++ (int);
116
117 wxCoord GetX() const;
118 wxCoord GetY() const;
119 wxCoord GetW() const;
120 wxCoord GetWidth() const { return GetW(); }
121 wxCoord GetH() const;
122 wxCoord GetHeight() const { return GetH(); }
123 wxRect GetRect() const;
124
125private:
126 void Init();
127 void CreateRects( const wxRegion& r );
128
129 wxRegion m_region;
130 wxRect *m_rects;
131 int m_numRects;
132 int m_current;
133
134 DECLARE_DYNAMIC_CLASS(wxRegionIterator)
135};
136
137
138#endif
139 // _WX_GTK_REGION_H_