Test to avoid crashes in some circumstances

[wxWidgets.git] / src / mac / carbon / colour.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        src/mac/carbon/colour.cpp
// Purpose:     wxColour class
// Author:      Stefan Csomor
// Modified by:
// Created:     1998-01-01
// RCS-ID:      $Id$
// Copyright:   (c) Stefan Csomor
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#include "wx/wxprec.h"

#include "wx/colour.h"

#ifndef WX_PRECOMP
    #include "wx/gdicmn.h"
#endif

#include "wx/mac/private.h"

IMPLEMENT_DYNAMIC_CLASS(wxColour, wxObject)

wxColour::wxColour(const RGBColor& col)
{
    FromRGBColor((WXCOLORREF *)&col);
}

static void wxComposeRGBColor( WXCOLORREF* color , int red, int blue, int green )
{
    RGBColor* col = (RGBColor*) color;
    col->red = (red << 8) + red;
    col->blue = (blue << 8) + blue;
    col->green = (green << 8) + green;
}

void wxColour::Init()
{
    m_isInit = false;
    m_red =
    m_blue =
    m_green = 0;

    wxComposeRGBColor( &m_pixel, m_red, m_blue, m_green );
}

wxColour::~wxColour ()
{
}

void wxColour::InitRGBA (unsigned char r, unsigned char g, unsigned char b, unsigned char a)
{
    m_red = r;
    m_green = g;
    m_blue = b;
    m_alpha = a ;
    m_isInit = true;

    wxComposeRGBColor( &m_pixel , m_red , m_blue , m_green );
}

void wxColour::FromRGBColor( WXCOLORREF* color )
{
    RGBColor* col = (RGBColor*) color;
    memcpy( &m_pixel, color, 6 );
    m_red = col->red >> 8;
    m_blue = col->blue >> 8;
    m_green = col->green >> 8;
}

wxColour& wxColour::operator=(const RGBColor& col)
{
    FromRGBColor((WXCOLORREF *)&col);
    return *this;
}

bool wxColour::IsOk() const 
{
    return m_isInit; 
}