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[wxWidgets.git] / src / mac / classic / fontenum.cpp

///////////////////////////////////////////////////////////////////////////////
// Name:        mac/fontenum.cpp
// Purpose:     wxFontEnumerator class for MacOS
// Author:      Stefan Csomor
// Modified by: 
// Created:     04/01/98
// RCS-ID:      $Id$
// Copyright:   (c) Stefan Csomor
// Licence:     wxWindows licence
///////////////////////////////////////////////////////////////////////////////

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

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

#ifdef __GNUG__
    #pragma implementation "fontenum.h"
#endif

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

#ifdef __BORLANDC__
  #pragma hdrstop
#endif

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

#include "wx/fontenum.h"
#include "wx/fontutil.h"
#include "wx/fontmap.h"
#include "wx/fontutil.h"
#include "wx/encinfo.h"

#include "wx/mac/private.h"

// ----------------------------------------------------------------------------
// private classes
// ----------------------------------------------------------------------------

class wxFontEnumeratorHelper
{
public:
    wxFontEnumeratorHelper(wxFontEnumerator *fontEnum);

    // control what exactly are we enumerating
    bool SetEncoding(wxFontEncoding encoding);
    void SetFixedOnly(bool fixedOnly)
        { m_fixedOnly = fixedOnly; }

    // call to start enumeration
    void DoEnumerate();

private:
    // the object we forward calls to OnFont() to
    wxFontEnumerator *m_fontEnum;

    // if != -1, enum only fonts which have this encoding
    int m_charset;

    // if not empty, enum only the fonts with this facename
    wxString m_facename;

    // if TRUE, enum only fixed fonts
    bool m_fixedOnly;
};
// ============================================================================
// implementation
// ============================================================================

// ----------------------------------------------------------------------------
// wxFontEnumeratorHelper
// ----------------------------------------------------------------------------

wxFontEnumeratorHelper::wxFontEnumeratorHelper(wxFontEnumerator *fontEnum)
{
    m_fontEnum = fontEnum;
    m_charset = -1;
    m_fixedOnly = FALSE;
}

bool wxFontEnumeratorHelper::SetEncoding(wxFontEncoding encoding)
{
    wxNativeEncodingInfo info;
    if ( !wxGetNativeFontEncoding(encoding, &info) )
    {
        if ( !wxFontMapper::Get()->GetAltForEncoding(encoding, &info) )
        {
            // no such encodings at all
            return FALSE;
        }
    }
    m_charset = info.charset;
    m_facename = info.facename;

    return TRUE;
}

void wxFontEnumeratorHelper::DoEnumerate()
{
    MenuHandle    menu ;
    Str255        p_name ;

    short         lines ;
    
    menu = NewMenu( 32000 , "\pFont" )  ;
    AppendResMenu( menu , 'FONT' ) ;
    lines = CountMenuItems( menu ) ;

    for ( int i = 1 ; i < lines+1  ; i ++ )
    {
        GetMenuItemText( menu , i , p_name ) ;
        wxString c_name = wxMacMakeStringFromPascal(p_name) ;

        /*
          
          if ( m_fixedOnly )
        {
            // check that it's a fixed pitch font (there is *no* error here, the
            // flag name is misleading!)
            if ( tm->tmPitchAndFamily & TMPF_FIXED_PITCH )
            {
                // not a fixed pitch font
                return TRUE;
            }
        }
    
        if ( m_charset != -1 )
        {
            // check that we have the right encoding
            if ( lf->lfCharSet != m_charset )
            {
                return TRUE;
            }
        }
    
        */
        m_fontEnum->OnFacename( c_name ) ;
    }
    DisposeMenu( menu ) ;
}

// ----------------------------------------------------------------------------
// wxFontEnumerator
// ----------------------------------------------------------------------------

bool wxFontEnumerator::EnumerateFacenames(wxFontEncoding encoding,
                                          bool fixedWidthOnly)
{
    wxFontEnumeratorHelper fe(this);
    if ( fe.SetEncoding(encoding) )
    {
        fe.SetFixedOnly(fixedWidthOnly);

        fe.DoEnumerate();
    }
    // else: no such fonts, unknown encoding

    return TRUE;
}

bool wxFontEnumerator::EnumerateEncodings(const wxString& family)
{
    wxFAIL_MSG(wxT("wxFontEnumerator::EnumerateEncodings() not yet implemented"));

    return TRUE;
}