wxWidgets/include/wx/msw/colour.h

/////////////////////////////////////////////////////////////////////////////
// Name:        colour.h
// Purpose:     wxColour class
// Author:      Julian Smart
// Modified by:
// Created:     01/02/97
// RCS-ID:      $Id$
// Copyright:   (c) Julian Smart
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#ifndef _WX_COLOUR_H_
#define _WX_COLOUR_H_

#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma interface "colour.h"
#endif
#include "wx/object.h"

// Colour
class WXDLLEXPORT wxColour: public wxObject
{
public:
  // ctors
    // default
  wxColour();
    // from RGB
  wxColour( unsigned char red, unsigned char green, unsigned char blue );
  wxColour( unsigned long colRGB ) { Set(colRGB); }

    // implicit conversion from the colour name
  wxColour( const wxString &colourName ) { InitFromName(colourName); }
  wxColour( const wxChar *colourName ) { InitFromName(colourName); }


    // copy ctors and assignment operators
  wxColour( const wxColour& col );
  wxColour& operator = ( const wxColour& col );

    // dtor
  ~wxColour();

  // to have the matching Create also for this class 
  void Create( unsigned char red, unsigned char green, unsigned char blue )
  {	Set( red , green , blue ) ; }

  // Set() functions
  void Set( unsigned char red, unsigned char green, unsigned char blue );
  void Set(unsigned long colRGB)
  {
    // we don't need to know sizeof(long) here because we assume that the three
    // least significant bytes contain the R, G and B values
    Set((unsigned char)colRGB,
        (unsigned char)(colRGB >> 8),
        (unsigned char)(colRGB >> 16));
  }

  // accessors
  bool Ok() const {return m_isInit; }

  unsigned char Red() const { return m_red; }
  unsigned char Green() const { return m_green; }
  unsigned char Blue() const { return m_blue; }

  // comparison
  bool operator==(const wxColour& colour) const
  {
    return m_isInit == colour.m_isInit &&
           m_red == colour.m_red &&
           m_green == colour.m_green &&
           m_blue == colour.m_blue;
  }

  bool operator != (const wxColour& colour) const { return !(*this == colour); }

  WXCOLORREF GetPixel() const { return m_pixel; };

public:
  WXCOLORREF m_pixel;

private:
  bool          m_isInit;
  unsigned char m_red;
  unsigned char m_blue;
  unsigned char m_green;

  // helper func
  void InitFromName(const wxString& colourName);

private:
  DECLARE_DYNAMIC_CLASS(wxColour)
};

#endif
        // _WX_COLOUR_H_