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();
  22     virtual ~wxRegionGeneric();
  23
  24     // wxRegionBase pure virtuals
  25     virtual void Clear();
  26     virtual bool IsEmpty() const;
  27
  28 protected:
  29     virtual wxGDIRefData *CreateGDIRefData() const;
  30     virtual wxGDIRefData *CloneGDIRefData(const wxGDIRefData *data) const;
  31
  32     // wxRegionBase pure virtuals
  33     virtual bool DoIsEqual(const wxRegion& region) const;
  34     virtual bool DoGetBox(wxCoord& x, wxCoord& y, wxCoord& w, wxCoord& h) const;
  35     virtual wxRegionContain DoContainsPoint(wxCoord x, wxCoord y) const;
  36     virtual wxRegionContain DoContainsRect(const wxRect& rect) const;
  37
  38     virtual bool DoOffset(wxCoord x, wxCoord y);
  39     virtual bool DoUnionWithRect(const wxRect& rect);
  40     virtual bool DoUnionWithRegion(const wxRegion& region);
  41     virtual bool DoIntersect(const wxRegion& region);
  42     virtual bool DoSubtract(const wxRegion& region);
  43     virtual bool DoXor(const wxRegion& region);
  44
  45     friend class WXDLLIMPEXP_FWD_CORE wxRegionIteratorGeneric;
  46 };
  47
  48 class WXDLLIMPEXP_CORE wxRegionIteratorGeneric : public wxObject
  49 {
  50 public:
  51     wxRegionIteratorGeneric();
  52     wxRegionIteratorGeneric(const wxRegionGeneric& region);
  53     wxRegionIteratorGeneric(const wxRegionIteratorGeneric& iterator);
  54     virtual ~wxRegionIteratorGeneric();
  55
  56     wxRegionIteratorGeneric& operator=(const wxRegionIteratorGeneric& iterator);
  57
  58     void Reset() { m_current = 0; }
  59     void Reset(const wxRegionGeneric& region);
  60
  61     operator bool () const { return HaveRects(); }
  62     bool HaveRects() const;
  63
  64     wxRegionIteratorGeneric& operator++();
  65     wxRegionIteratorGeneric operator++(int);
  66
  67     long GetX() const;
  68     long GetY() const;
  69     long GetW() const;
  70     long GetWidth() const { return GetW(); }
  71     long GetH() const;
  72     long GetHeight() const { return GetH(); }
  73     wxRect GetRect() const;
  74 private:
  75     long     m_current;
  76     wxRegionGeneric m_region;
  77 };
  78
  79 #endif // _WX_GENERIC_REGION_H__