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Reworked Frame class
[wxWidgets.git] / include / wx / gtk1 / region.h
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( wxCoord x, wxCoord y, wxCoord w, wxCoord 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( wxCoord x, wxCoord y, wxCoord width, wxCoord height );
72 bool Union( const wxRect& rect );
73 bool Union( const wxRegion& region );
74
75 bool Intersect( wxCoord x, wxCoord y, wxCoord width, wxCoord height );
76 bool Intersect( const wxRect& rect );
77 bool Intersect( const wxRegion& region );
78
79 bool Subtract( wxCoord x, wxCoord y, wxCoord width, wxCoord height );
80 bool Subtract( const wxRect& rect );
81 bool Subtract( const wxRegion& region );
82
83 bool Xor( wxCoord x, wxCoord y, wxCoord width, wxCoord height );
84 bool Xor( const wxRect& rect );
85 bool Xor( const wxRegion& region );
86
87 void GetBox( wxCoord& x, wxCoord& y, wxCoord&w, wxCoord &h ) const;
88 wxRect GetBox() const ;
89
90 bool Empty() const;
91 bool IsEmpty() const { return Empty(); }
92
93 wxRegionContain Contains( wxCoord x, wxCoord y ) const;
94 wxRegionContain Contains( wxCoord x, wxCoord y, wxCoord w, wxCoord h ) const;
95 wxRegionContain Contains(const wxPoint& pt) const;
96 wxRegionContain Contains(const wxRect& rect) const;
97
98 public:
99 wxList *GetRectList() const;
100 GdkRegion *GetRegion() const;
101
102 private:
103 DECLARE_DYNAMIC_CLASS(wxRegion);
104 };
105
106 class wxRegionIterator: public wxObject
107 {
108 public:
109 wxRegionIterator();
110 wxRegionIterator(const wxRegion& region);
111
112 void Reset() { m_current = 0u; }
113 void Reset(const wxRegion& region);
114
115 operator bool () const;
116 bool HaveRects() const;
117
118 void operator ++ ();
119 void operator ++ (int);
120
121 wxCoord GetX() const;
122 wxCoord GetY() const;
123 wxCoord GetW() const;
124 wxCoord GetWidth() const { return GetW(); }
125 wxCoord GetH() const;
126 wxCoord GetHeight() const { return GetH(); }
127 wxRect GetRect() const { return wxRect(GetX(), GetY(), GetWidth(), GetHeight()); }
128
129 private:
130 size_t m_current;
131 wxRegion m_region;
132
133 private:
134 DECLARE_DYNAMIC_CLASS(wxRegionIterator);
135 };
136
137
138 #endif
139 // _WX_GTK_REGION_H_