include/wx/generic/region.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/generic/region.h
   3 // Purpose:     generic wxRegion class
   4 // Author:      David Elliott
   5 // Modified by:
   6 // Created:     2004/04/12
   7 // Copyright:   (c) 2004 David Elliott
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 #ifndef _WX_GENERIC_REGION_H__
  12 #define _WX_GENERIC_REGION_H__
  13
  14 class WXDLLIMPEXP_CORE wxRegionGeneric : public wxRegionBase
  15 {
  16 public:
  17     wxRegionGeneric(wxCoord x, wxCoord y, wxCoord w, wxCoord h);
  18     wxRegionGeneric(const wxPoint& topLeft, const wxPoint& bottomRight);
  19     wxRegionGeneric(const wxRect& rect);
  20     wxRegionGeneric(size_t n, const wxPoint *points, wxPolygonFillMode fillStyle = wxODDEVEN_RULE);
  21     wxRegionGeneric(const wxBitmap& bmp);
  22     wxRegionGeneric(const wxBitmap& bmp, const wxColour& transp, int tolerance = 0);
  23     wxRegionGeneric();
  24     virtual ~wxRegionGeneric();
  25
  26     // wxRegionBase pure virtuals
  27     virtual void Clear();
  28     virtual bool IsEmpty() const;
  29
  30 protected:
  31     virtual wxGDIRefData *CreateGDIRefData() const;
  32     virtual wxGDIRefData *CloneGDIRefData(const wxGDIRefData *data) const;
  33
  34     // wxRegionBase pure virtuals
  35     virtual bool DoIsEqual(const wxRegion& region) const;
  36     virtual bool DoGetBox(wxCoord& x, wxCoord& y, wxCoord& w, wxCoord& h) const;
  37     virtual wxRegionContain DoContainsPoint(wxCoord x, wxCoord y) const;
  38     virtual wxRegionContain DoContainsRect(const wxRect& rect) const;
  39
  40     virtual bool DoOffset(wxCoord x, wxCoord y);
  41     virtual bool DoUnionWithRect(const wxRect& rect);
  42     virtual bool DoUnionWithRegion(const wxRegion& region);
  43     virtual bool DoIntersect(const wxRegion& region);
  44     virtual bool DoSubtract(const wxRegion& region);
  45     virtual bool DoXor(const wxRegion& region);
  46
  47     friend class WXDLLIMPEXP_FWD_CORE wxRegionIteratorGeneric;
  48 };
  49
  50 class WXDLLIMPEXP_CORE wxRegionIteratorGeneric : public wxObject
  51 {
  52 public:
  53     wxRegionIteratorGeneric();
  54     wxRegionIteratorGeneric(const wxRegionGeneric& region);
  55     wxRegionIteratorGeneric(const wxRegionIteratorGeneric& iterator);
  56     virtual ~wxRegionIteratorGeneric();
  57
  58     wxRegionIteratorGeneric& operator=(const wxRegionIteratorGeneric& iterator);
  59
  60     void Reset() { m_current = 0; }
  61     void Reset(const wxRegionGeneric& region);
  62
  63     operator bool () const { return HaveRects(); }
  64     bool HaveRects() const;
  65
  66     wxRegionIteratorGeneric& operator++();
  67     wxRegionIteratorGeneric operator++(int);
  68
  69     long GetX() const;
  70     long GetY() const;
  71     long GetW() const;
  72     long GetWidth() const { return GetW(); }
  73     long GetH() const;
  74     long GetHeight() const { return GetH(); }
  75     wxRect GetRect() const;
  76 private:
  77     long     m_current;
  78     wxRegionGeneric m_region;
  79 };
  80
  81 #endif // _WX_GENERIC_REGION_H__