include/wx/palmos/region.h

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