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