include/wx/cocoa/region.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/cocoa/region.h
   3 // Purpose:     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_COCOA_REGION_H__
  13 #define _WX_COCOA_REGION_H__
  14
  15 #include "wx/generic/region.h"
  16
  17 typedef struct _NSRect NSRect;
  18
  19 class WXDLLEXPORT wxRegion : public wxRegionGeneric
  20 {
  21     DECLARE_DYNAMIC_CLASS(wxRegion);
  22 public:
  23     wxRegion(wxCoord x, wxCoord y, wxCoord w, wxCoord h)
  24     :   wxRegionGeneric(x,y,w,h)
  25     {}
  26     wxRegion(const wxPoint& topLeft, const wxPoint& bottomRight)
  27     :   wxRegionGeneric(topLeft, bottomRight)
  28     {}
  29     wxRegion(const wxRect& rect)
  30     :   wxRegionGeneric(rect)
  31     {}
  32     wxRegion() {}
  33     wxRegion(const wxBitmap& bmp)
  34     :   wxRegionGeneric()
  35         { Union(bmp); }
  36     wxRegion(const wxBitmap& bmp,
  37              const wxColour& transColour, int tolerance = 0)
  38     :   wxRegionGeneric()
  39         { Union(bmp, transColour, tolerance); }
  40     virtual ~wxRegion() {}
  41     wxRegion(const wxRegion& r)
  42     :   wxRegionGeneric(r)
  43     {}
  44     wxRegion& operator= (const wxRegion& r)
  45     {   return *(wxRegion*)&(this->wxRegionGeneric::operator=(r)); }
  46
  47     // Cocoa-specific creation
  48     wxRegion(const NSRect& rect);
  49     wxRegion(const NSRect *rects, int count);
  50
  51     // Use the non-transparent pixels of a wxBitmap for the region to combine
  52     // with this region.  First version takes transparency from bitmap's mask,
  53     // second lets the user specify the colour to be treated as transparent
  54     // along with an optional tolerance value.
  55     // NOTE: implemented in common/rgncmn.cpp
  56     bool Union(const wxBitmap& bmp);
  57     bool Union(const wxBitmap& bmp,
  58                const wxColour& transColour, int tolerance = 0);
  59     /* And because of function hiding: */
  60     bool Union(long x, long y, long width, long height)
  61     {   return wxRegionGeneric::Union(x,y,width,height); }
  62     bool Union(const wxRect& rect)
  63     {   return wxRegionGeneric::Union(rect); }
  64     bool Union(const wxRegion& region)
  65     {   return wxRegionGeneric::Union(region); }
  66
  67     // Convert the region to a B&W bitmap with the black pixels being inside
  68     // the region.
  69     // NOTE: implemented in common/rgncmn.cpp
  70     wxBitmap ConvertToBitmap() const;
  71
  72 };
  73
  74 class WXDLLEXPORT wxRegionIterator : public wxRegionIteratorGeneric
  75 {
  76 //    DECLARE_DYNAMIC_CLASS(wxRegionIteratorGeneric);
  77 public:
  78     wxRegionIterator() {}
  79     wxRegionIterator(const wxRegion& region)
  80     :   wxRegionIteratorGeneric(region)
  81     {}
  82     wxRegionIterator(const wxRegionIterator& iterator)
  83     :   wxRegionIteratorGeneric(iterator)
  84     {}
  85     virtual ~wxRegionIterator() {}
  86
  87     wxRegionIterator& operator=(const wxRegionIterator& iter)
  88     {   return *(wxRegionIterator*)&(this->wxRegionIteratorGeneric::operator=(iter)); }
  89 };
  90
  91 #endif //ndef _WX_COCOA_REGION_H__