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[wxWidgets.git] / include / wx / msw / colour.h

/////////////////////////////////////////////////////////////////////////////
// Name:        wx/msw/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_

#include "wx/object.h"

// ----------------------------------------------------------------------------
// Colour
// ----------------------------------------------------------------------------

class WXDLLEXPORT wxColour : public wxObject
{
public:
    // constructors
    // ------------

    // default
    wxColour() { Init(); }

    // from separate RGB
    wxColour( unsigned char red, unsigned char green, unsigned char blue )
        { Set(red, green, blue); }

    // from packed RGB
    wxColour( unsigned long colRGB ) { Set(colRGB); }

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

    // dtor
    ~wxColour();


    // other methods
    // -------------

    // 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; };

    void InitFromName(const wxString& colourName);

public:
    WXCOLORREF m_pixel;

protected:
    // Helper function
    void Init();

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

private:
    DECLARE_DYNAMIC_CLASS(wxColour)
};

#endif
        // _WX_COLOUR_H_