wxWidgets/include/wx/fmappriv.h

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///////////////////////////////////////////////////////////////////////////////
// Name: wx/fmappriv.h
// Purpose: private wxFontMapper stuff, not to be used by the library users
// Author: Vadim Zeitlin
// Modified by:
// Created: 21.06.2003 (extracted from common/fontmap.cpp)
// RCS-ID: $Id$
// Copyright: (c) 1999-2003 Vadim Zeitlin <vadim@wxwidgets.org>
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
#ifndef _WX_FMAPPRIV_H_
#define _WX_FMAPPRIV_H_
// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------
// a special pseudo encoding which means "don't ask me about this charset
// any more" -- we need it to avoid driving the user crazy with asking him
// time after time about the same charset which he [presumably] doesn't
// have the fonts for
enum { wxFONTENCODING_UNKNOWN = -2 };
// the config paths we use
#if wxUSE_CONFIG
#define FONTMAPPER_ROOT_PATH wxT("/wxWindows/FontMapper")
#define FONTMAPPER_CHARSET_PATH wxT("Charsets")
#define FONTMAPPER_CHARSET_ALIAS_PATH wxT("Aliases")
#endif // wxUSE_CONFIG
// ----------------------------------------------------------------------------
// wxFontMapperPathChanger: change the config path during our lifetime
// ----------------------------------------------------------------------------
#if wxUSE_CONFIG && wxUSE_FILECONFIG
class wxFontMapperPathChanger
{
public:
wxFontMapperPathChanger(wxFontMapperBase *fontMapper, const wxString& path)
{
m_fontMapper = fontMapper;
m_ok = m_fontMapper->ChangePath(path, &m_pathOld);
}
bool IsOk() const { return m_ok; }
~wxFontMapperPathChanger()
{
if ( IsOk() )
m_fontMapper->RestorePath(m_pathOld);
}
private:
// the fontmapper object we're working with
wxFontMapperBase *m_fontMapper;
// the old path to be restored if m_ok
wxString m_pathOld;
// have we changed the path successfully?
bool m_ok;
DECLARE_NO_COPY_CLASS(wxFontMapperPathChanger)
};
#endif // wxUSE_CONFIG
#endif // _WX_FMAPPRIV_H_