include/wx/gtk/colour.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/gtk/colour.h
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #ifndef __GTKCOLOURH__
  11 #define __GTKCOLOURH__
  12
  13 #include "wx/defs.h"
  14 #include "wx/object.h"
  15 #include "wx/string.h"
  16 #include "wx/gdiobj.h"
  17 #include "wx/palette.h"
  18
  19 //-----------------------------------------------------------------------------
  20 // classes
  21 //-----------------------------------------------------------------------------
  22
  23 class WXDLLIMPEXP_CORE wxDC;
  24 class WXDLLIMPEXP_CORE wxPaintDC;
  25 class WXDLLIMPEXP_CORE wxBitmap;
  26 class WXDLLIMPEXP_CORE wxWindow;
  27
  28 class WXDLLIMPEXP_CORE wxColour;
  29
  30 //-----------------------------------------------------------------------------
  31 // wxColour
  32 //-----------------------------------------------------------------------------
  33
  34 class WXDLLIMPEXP_CORE wxColour: public wxGDIObject
  35 {
  36 public:
  37     // constructors
  38     // ------------
  39
  40     // default
  41     wxColour() { }
  42
  43     // from separate RGB
  44     wxColour( unsigned char red, unsigned char green, unsigned char blue );
  45
  46     // from packed RGB
  47     wxColour( unsigned long colRGB ) { Set(colRGB); }
  48
  49     // Implicit conversion from the colour name
  50     wxColour( const wxString &colourName ) { InitFromName(colourName); }
  51     wxColour( const char *colourName ) { InitFromName( wxString::FromAscii(colourName) ); }
  52 #if wxUSE_UNICODE
  53     wxColour( const wxChar *colourName ) { InitFromName( wxString(colourName) ); }
  54 #endif
  55
  56
  57     wxColour( const wxColour& col )
  58         : wxGDIObject()
  59         { Ref(col); }
  60     wxColour& operator = ( const wxColour& col ) { Ref(col); return *this; }
  61
  62     ~wxColour();
  63
  64     bool Ok() const { return m_refData != NULL; }
  65
  66     bool operator == ( const wxColour& col ) const;
  67     bool operator != ( const wxColour& col ) const { return !(*this == col); }
  68
  69     void Set( unsigned char red, unsigned char green, unsigned char blue );
  70     void Set( unsigned long colRGB )
  71     {
  72         // We don't need to know sizeof(long) here because we assume that the three
  73         // least significant bytes contain the R, G and B values
  74         Set((unsigned char)colRGB,
  75             (unsigned char)(colRGB >> 8),
  76             (unsigned char)(colRGB >> 16));
  77     }
  78
  79     unsigned char Red() const;
  80     unsigned char Green() const;
  81     unsigned char Blue() const;
  82
  83
  84     // Get colour from name or wxNullColour
  85     static wxColour CreateByName(const wxString& name);
  86
  87     // Implementation part
  88     void CalcPixel( GdkColormap *cmap );
  89     int GetPixel() const;
  90     GdkColor *GetColor() const;
  91
  92     void InitFromName(const wxString& colourName);
  93
  94 protected:
  95     // ref counting code
  96     virtual wxObjectRefData *CreateRefData() const;
  97     virtual wxObjectRefData *CloneRefData(const wxObjectRefData *data) const;
  98
  99
 100 private:
 101     DECLARE_DYNAMIC_CLASS(wxColour)
 102 };
 103
 104 #endif // __GTKCOLOURH__