wxXmlNode::GetAttribute's pointer argument must not be NULL, check for it

[wxWidgets.git] / src / msw / fontdlg.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        src/msw/fontdlg.cpp
// Purpose:     wxFontDialog class
// Author:      Julian Smart
// Modified by:
// Created:     01/02/97
// RCS-ID:      $Id$
// Copyright:   (c) Julian Smart
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

// ============================================================================
// declarations
// ============================================================================

// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------

// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

#if wxUSE_FONTDLG

#include "wx/fontdlg.h"

#ifndef WX_PRECOMP
    #include "wx/msw/wrapcdlg.h"
    #include "wx/utils.h"
    #include "wx/dialog.h"
    #include "wx/log.h"
    #include "wx/cmndata.h"
    #include "wx/math.h"
#endif

#include <stdlib.h>
#include <string.h>

// ----------------------------------------------------------------------------
// wxWin macros
// ----------------------------------------------------------------------------

IMPLEMENT_DYNAMIC_CLASS(wxFontDialog, wxDialog)

// ============================================================================
// implementation
// ============================================================================

// ----------------------------------------------------------------------------
// wxFontDialog
// ----------------------------------------------------------------------------

int wxFontDialog::ShowModal()
{
    // It should be OK to always use GDI simulations
    DWORD flags = CF_SCREENFONTS /* | CF_NOSIMULATIONS */ ;

    LOGFONT logFont;

    CHOOSEFONT chooseFontStruct;
    wxZeroMemory(chooseFontStruct);

    chooseFontStruct.lStructSize = sizeof(CHOOSEFONT);
    if ( m_parent )
        chooseFontStruct.hwndOwner = GetHwndOf(m_parent);
    chooseFontStruct.lpLogFont = &logFont;

    if ( m_fontData.m_initialFont.Ok() )
    {
        flags |= CF_INITTOLOGFONTSTRUCT;
        wxFillLogFont(&logFont, &m_fontData.m_initialFont);
    }

    if ( m_fontData.m_fontColour.Ok() )
    {
        chooseFontStruct.rgbColors = wxColourToRGB(m_fontData.m_fontColour);
    }

    // CF_ANSIONLY flag is obsolete for Win32
    if ( !m_fontData.GetAllowSymbols() )
    {
      flags |= CF_SELECTSCRIPT;
      logFont.lfCharSet = ANSI_CHARSET;
    }

    if ( m_fontData.GetEnableEffects() )
      flags |= CF_EFFECTS;
    if ( m_fontData.GetShowHelp() )
      flags |= CF_SHOWHELP;

    if ( m_fontData.m_minSize != 0 || m_fontData.m_maxSize != 0 )
    {
        chooseFontStruct.nSizeMin = m_fontData.m_minSize;
        chooseFontStruct.nSizeMax = m_fontData.m_maxSize;
        flags |= CF_LIMITSIZE;
    }

    chooseFontStruct.Flags = flags;

    if ( ChooseFont(&chooseFontStruct) != 0 )
    {
        wxRGBToColour(m_fontData.m_fontColour, chooseFontStruct.rgbColors);
        m_fontData.m_chosenFont = wxCreateFontFromLogFont(&logFont);
        m_fontData.EncodingInfo().facename = logFont.lfFaceName;
        m_fontData.EncodingInfo().charset = logFont.lfCharSet;

        return wxID_OK;
    }
    else
    {
        // common dialog failed - why?
#ifdef __WXDEBUG__
        DWORD dwErr = CommDlgExtendedError();
        if ( dwErr != 0 )
        {
            // this msg is only for developers
            wxLogError(wxT("Common dialog failed with error code %0lx."),
                       dwErr);
        }
        //else: it was just cancelled
#endif

        return wxID_CANCEL;
    }
}

#endif // wxUSE_FONTDLG