include/wx/gtk/colour.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        colour.h
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10
  11 #ifndef __GTKCOLOURH__
  12 #define __GTKCOLOURH__
  13
  14 #ifdef __GNUG__
  15 #pragma interface
  16 #endif
  17
  18 #include "wx/defs.h"
  19 #include "wx/object.h"
  20 #include "wx/string.h"
  21 #include "wx/gdiobj.h"
  22 #include "wx/palette.h"
  23
  24 //-----------------------------------------------------------------------------
  25 // classes
  26 //-----------------------------------------------------------------------------
  27
  28 class wxDC;
  29 class wxPaintDC;
  30 class wxBitmap;
  31 class wxWindow;
  32
  33 class wxColour;
  34
  35 //-----------------------------------------------------------------------------
  36 // wxColour
  37 //-----------------------------------------------------------------------------
  38
  39 class wxColour: public wxGDIObject
  40 {
  41 public:
  42   // ctors
  43     // default
  44   wxColour();
  45     // from RGB
  46   wxColour( unsigned char red, unsigned char green, unsigned char blue );
  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(colourName); }
  52
  53     // copy ctors and assignment operators
  54   wxColour( const wxColour& col );
  55   wxColour& operator = ( const wxColour& col );
  56
  57     // dtor
  58   ~wxColour();
  59
  60   // comparison
  61   bool operator == ( const wxColour& col ) const;
  62   bool operator != ( const wxColour& col ) const;
  63
  64   // accessors
  65   void Set( unsigned char red, unsigned char green, unsigned char blue );
  66   void Set( unsigned long colRGB )
  67   {
  68     // we don't need to know sizeof(long) here because we assume that the three
  69     // least significant bytes contain the R, G and B values
  70     Set((unsigned char)colRGB,
  71         (unsigned char)(colRGB >> 8),
  72         (unsigned char)(colRGB >> 16));
  73   }
  74
  75   unsigned char Red() const;
  76   unsigned char Green() const;
  77   unsigned char Blue() const;
  78   bool Ok() const;
  79
  80   // implementation
  81   void CalcPixel( GdkColormap *cmap );
  82   int GetPixel() const;
  83   GdkColor *GetColor() const;
  84
  85 protected:
  86   // helper functions
  87   void InitFromName(const wxString& colourName);
  88
  89 private:
  90   DECLARE_DYNAMIC_CLASS(wxColour)
  91 };
  92
  93 #endif // __GTKCOLOURH__