include/wx/colour.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/colour.h
   3 // Purpose:     wxColourBase definition
   4 // Author:      Julian Smart
   5 // Modified by: Francesco Montorsi
   6 // Created:
   7 // RCS-ID:      $Id$
   8 // Copyright:   Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_COLOUR_H_BASE_
  13 #define _WX_COLOUR_H_BASE_
  14
  15 #include "wx/defs.h"
  16 #include "wx/gdiobj.h"
  17
  18
  19 // the standard wxColour constructor.
  20 // this macro avoids to repeat these lines across all colour.h files, since
  21 // Set() is a virtual function and thus cannot be called by wxColourBase
  22 // constructors
  23 #define DEFINE_STD_WXCOLOUR_CONSTRUCTORS                                        \
  24     wxColour( unsigned char red, unsigned char green, unsigned char blue )      \
  25         { Set(red, green, blue); }                                              \
  26     wxColour( unsigned long colRGB ) { Set(colRGB); }                           \
  27     wxColour(const wxString &colourName) { Set(colourName); }                   \
  28     wxColour(const wxChar *colourName) { Set(colourName); }
  29
  30
  31 // for wxString <-> wxColour
  32 #define wxC2S_NAME              1   // return colour name, when possible
  33 #define wxC2S_CSS_SYNTAX        2   // return colour in rgb(r,g,b) syntax
  34 #define wxC2S_HTML_SYNTAX       4   // return colour in #rrggbb syntax
  35
  36
  37 class WXDLLEXPORT wxColour;
  38
  39
  40 //-----------------------------------------------------------------------------
  41 // wxColourBase: this class has no data members, just some functions to avoid
  42 //               code redundancy in all native wxColour implementations
  43 //-----------------------------------------------------------------------------
  44
  45 class WXDLLEXPORT wxColourBase : public wxGDIObject
  46 {
  47 protected:
  48
  49     virtual void InitWith(unsigned char red, unsigned char green, unsigned char blue) = 0;
  50     virtual bool FromString(const wxChar *);
  51
  52 public:
  53     wxColourBase() {}
  54     virtual ~wxColourBase() {}
  55
  56
  57     // Set() functions
  58     // ---------------
  59
  60     void Set(unsigned char red, unsigned char green, unsigned char blue)
  61         { InitWith(red,green,blue); }
  62
  63     // implemented in colourcmn.cpp
  64     bool Set(const wxChar *str)
  65         { return FromString(str); }
  66
  67     bool Set(const wxString &str)
  68         { return Set((const wxChar *)str); }
  69
  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
  80
  81     // accessors
  82     // ---------
  83
  84     virtual bool Ok() const = 0;
  85
  86     virtual unsigned char Red() const = 0;
  87     virtual unsigned char Green() const = 0;
  88     virtual unsigned char Blue() const = 0;
  89
  90     // implemented in colourcmn.cpp
  91     virtual wxString GetAsString(long flags = wxC2S_NAME | wxC2S_CSS_SYNTAX) const;
  92
  93
  94
  95     // old, deprecated
  96     // ---------------
  97
  98     static wxColour CreateByName(const wxString& name);
  99     void InitFromName(const wxString& col)
 100         { Set(col); }
 101 };
 102
 103
 104
 105 #if defined(__WXPALMOS__)
 106 #include "wx/palmos/colour.h"
 107 #elif defined(__WXMSW__)
 108 #include "wx/msw/colour.h"
 109 #elif defined(__WXMOTIF__)
 110 #include "wx/motif/colour.h"
 111 #elif defined(__WXGTK20__)
 112 #include "wx/gtk/colour.h"
 113 #elif defined(__WXGTK__)
 114 #include "wx/gtk1/colour.h"
 115 #elif defined(__WXMGL__)
 116 #include "wx/mgl/colour.h"
 117 #elif defined(__WXX11__)
 118 #include "wx/x11/colour.h"
 119 #elif defined(__WXMAC__)
 120 #include "wx/mac/colour.h"
 121 #elif defined(__WXCOCOA__)
 122 #include "wx/cocoa/colour.h"
 123 #elif defined(__WXPM__)
 124 #include "wx/os2/colour.h"
 125 #endif
 126
 127 #define wxColor wxColour
 128
 129 #endif
 130     // _WX_COLOUR_H_BASE_