include/wx/motif/colour.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/motif/colour.h
   3 // Purpose:     wxColour class
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_COLOUR_H_
  13 #define _WX_COLOUR_H_
  14
  15 #include "wx/object.h"
  16 #include "wx/string.h"
  17
  18 // Colour
  19 class WXDLLEXPORT wxColour : public wxColourBase
  20 {
  21     DECLARE_DYNAMIC_CLASS(wxColour)
  22 public:
  23     // constructors
  24     // ------------
  25
  26     // default
  27     wxColour() { Init(); }
  28     DEFINE_STD_WXCOLOUR_CONSTRUCTORS
  29
  30     // copy ctors and assignment operators
  31     wxColour( const wxColour& col );
  32     wxColour& operator = ( const wxColour& col );
  33
  34     // dtor
  35     virtual ~wxColour();
  36
  37
  38     // accessors
  39     bool Ok() const { return IsOk(); }
  40     bool IsOk() const {return m_isInit; }
  41     unsigned char Red() const { return m_red; }
  42     unsigned char Green() const { return m_green; }
  43     unsigned char Blue() const { return m_blue; }
  44
  45     WXPixel GetPixel() const { return m_pixel; };
  46     void SetPixel(WXPixel pixel) { m_pixel = pixel; m_isInit = true; };
  47
  48     inline bool operator == (const wxColour& colour) const { return (m_red == colour.m_red && m_green == colour.m_green && m_blue == colour.m_blue); }
  49
  50     inline bool operator != (const wxColour& colour) const { return (!(m_red == colour.m_red && m_green == colour.m_green && m_blue == colour.m_blue)); }
  51
  52     // Allocate a colour, or nearest colour, using the given display.
  53     // If realloc is true, ignore the existing pixel, otherwise just return
  54     // the existing one.
  55     // Returns the allocated pixel.
  56
  57     // TODO: can this handle mono displays? If not, we should have an extra
  58     // flag to specify whether this should be black or white by default.
  59
  60     WXPixel AllocColour(WXDisplay* display, bool realloc = false);
  61
  62 protected:
  63     // Helper function
  64     void Init();
  65
  66     virtual void
  67     InitRGBA(unsigned char r, unsigned char g, unsigned char b, unsigned char a);
  68
  69 private:
  70     bool          m_isInit;
  71     unsigned char m_red;
  72     unsigned char m_blue;
  73     unsigned char m_green;
  74
  75 public:
  76     WXPixel       m_pixel;
  77 };
  78
  79 #endif
  80 // _WX_COLOUR_H_