1/////////////////////////////////////////////////////////////////////////////
2// Name:        wx/msw/region.h
3// Purpose:     wxRegion class
4// Author:      Julian Smart
5// Modified by:
6// Created:     01/02/97
7// RCS-ID:      $Id: region.h 59602 2009-03-18 10:07:58Z VZ $
8// Copyright:   (c) 1997-2002 wxWidgets team
9// Licence:     wxWindows licence
10/////////////////////////////////////////////////////////////////////////////
11
12#ifndef _WX_MSW_REGION_H_
13#define _WX_MSW_REGION_H_
14
15class WXDLLEXPORT wxRegion : public wxRegionWithCombine
16{
17public:
18    wxRegion();
19    wxRegion(wxCoord x, wxCoord y, wxCoord w, wxCoord h);
20    wxRegion(const wxPoint& topLeft, const wxPoint& bottomRight);
21    wxRegion(const wxRect& rect);
22    wxRegion(WXHRGN hRegion); // Hangs on to this region
23    wxRegion(size_t n, const wxPoint *points, int fillStyle = wxODDEVEN_RULE );
24#if wxUSE_IMAGE
25    wxRegion( const wxBitmap& bmp)
26    {
27        Union(bmp);
28    }
29    wxRegion( const wxBitmap& bmp,
30              const wxColour& transColour, int tolerance = 0)
31    {
32        Union(bmp, transColour, tolerance);
33    }
34#endif // wxUSE_IMAGE
35
36    virtual ~wxRegion();
37
38    // wxRegionBase methods
39    virtual void Clear();
40    virtual bool IsEmpty() const;
41
42    // Get internal region handle
43    WXHRGN GetHRGN() const;
44
45protected:
46    virtual wxObjectRefData *CreateRefData() const;
47    virtual wxObjectRefData *CloneRefData(const wxObjectRefData *data) const;
48
49    virtual bool DoIsEqual(const wxRegion& region) const;
50    virtual bool DoGetBox(wxCoord& x, wxCoord& y, wxCoord& w, wxCoord& h) const;
51    virtual wxRegionContain DoContainsPoint(wxCoord x, wxCoord y) const;
52    virtual wxRegionContain DoContainsRect(const wxRect& rect) const;
53
54    virtual bool DoOffset(wxCoord x, wxCoord y);
55    virtual bool DoCombine(const wxRegion& region, wxRegionOp op);
56
57    friend class WXDLLIMPEXP_FWD_CORE wxRegionIterator;
58
59    DECLARE_DYNAMIC_CLASS(wxRegion)
60};
61
62class WXDLLEXPORT wxRegionIterator : public wxObject
63{
64public:
65    wxRegionIterator() { Init(); }
66    wxRegionIterator(const wxRegion& region);
67    wxRegionIterator(const wxRegionIterator& ri) : wxObject(ri) { Init(); *this = ri; }
68
69    wxRegionIterator& operator=(const wxRegionIterator& ri);
70
71    virtual ~wxRegionIterator();
72
73    void Reset() { m_current = 0; }
74    void Reset(const wxRegion& region);
75
76    bool HaveRects() const { return (m_current < m_numRects); }
77
78    operator bool () const { return HaveRects(); }
79
80    wxRegionIterator& operator++();
81    wxRegionIterator operator++(int);
82
83    wxCoord GetX() const;
84    wxCoord GetY() const;
85    wxCoord GetW() const;
86    wxCoord GetWidth() const { return GetW(); }
87    wxCoord GetH() const;
88    wxCoord GetHeight() const { return GetH(); }
89
90    wxRect GetRect() const { return wxRect(GetX(), GetY(), GetW(), GetH()); }
91
92private:
93    // common part of all ctors
94    void Init();
95
96    long     m_current;
97    long     m_numRects;
98    wxRegion m_region;
99    wxRect*  m_rects;
100
101    DECLARE_DYNAMIC_CLASS(wxRegionIterator)
102};
103
104#endif // _WX_MSW_REGION_H_
105