include/wx/x11/colour.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/x11/colour.h
   3 // Purpose:     wxColour class
   4 // Author:      Julian Smart, Robert Roebling
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart, Robert Roebling
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_COLOUR_H_
  13 #define _WX_COLOUR_H_
  14
  15 #include "wx/defs.h"
  16 #include "wx/object.h"
  17 #include "wx/string.h"
  18 #include "wx/gdiobj.h"
  19 #include "wx/palette.h"
  20
  21 //-----------------------------------------------------------------------------
  22 // classes
  23 //-----------------------------------------------------------------------------
  24
  25 class WXDLLIMPEXP_CORE wxDC;
  26 class WXDLLIMPEXP_CORE wxPaintDC;
  27 class WXDLLIMPEXP_CORE wxBitmap;
  28 class WXDLLIMPEXP_CORE wxWindow;
  29
  30 class WXDLLIMPEXP_CORE wxColour;
  31
  32 //-----------------------------------------------------------------------------
  33 // wxColour
  34 //-----------------------------------------------------------------------------
  35
  36 class WXDLLEXPORT wxColour: public wxGDIObject
  37 {
  38 public:
  39     // constructors
  40     // ------------
  41
  42     // default
  43     wxColour() { }
  44
  45     // from separate RGB
  46     wxColour( unsigned char red, unsigned char green, unsigned char blue );
  47
  48     // from packed RGB
  49     wxColour( unsigned long colRGB ) { Set(colRGB); }
  50
  51     // Implicit conversion from the colour name
  52     wxColour( const wxString &colourName ) { InitFromName(colourName); }
  53     wxColour( const char *colourName ) { InitFromName( wxString::FromAscii(colourName) ); }
  54 #if wxUSE_UNICODE
  55     wxColour( const wxChar *colourName ) { InitFromName( wxString(colourName) ); }
  56 #endif
  57
  58     // Get colour from name or wxNullColour
  59     static wxColour CreateByName(const wxString& name);
  60
  61     ~wxColour();
  62
  63     bool Ok() const { return m_refData != NULL; }
  64
  65     bool operator == ( const wxColour& col ) const;
  66     bool operator != ( const wxColour& col ) const { return !(*this == col); }
  67
  68     void Set( unsigned char red, unsigned char green, unsigned char blue );
  69     void Set( unsigned long colRGB )
  70     {
  71         // We don't need to know sizeof(long) here because we assume that the three
  72         // least significant bytes contain the R, G and B values
  73         Set((unsigned char)colRGB,
  74             (unsigned char)(colRGB >> 8),
  75             (unsigned char)(colRGB >> 16));
  76     }
  77
  78     unsigned char Red() const;
  79     unsigned char Green() const;
  80     unsigned char Blue() const;
  81
  82     // Implementation part
  83
  84     void CalcPixel( WXColormap cmap );
  85     unsigned long GetPixel() const;
  86     WXColor *GetColor() const;
  87
  88     void InitFromName(const wxString& colourName);
  89
  90 protected:
  91     // ref counting code
  92     virtual wxObjectRefData *CreateRefData() const;
  93     virtual wxObjectRefData *CloneRefData(const wxObjectRefData *data) const;
  94
  95
  96 private:
  97     DECLARE_DYNAMIC_CLASS(wxColour)
  98 };
  99
 100 #endif
 101
 102 // _WX_COLOUR_H_