Files
wxWidgets/src/msw/helpbest.cpp
2004-08-27 18:59:37 +00:00

106 lines
2.6 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Name: helpbest.cpp
// Purpose: Tries to load MS HTML Help, falls back to wxHTML upon failure
// Author: Mattia Barbon
// Modified by:
// Created: 02/04/2001
// RCS-ID: $Id$
// Copyright: (c) Mattia Barbon
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma implementation "helpbest.h"
#endif
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#ifndef WX_PRECOMP
#include "wx/defs.h"
#endif
#include "wx/filefn.h"
#include "wx/log.h"
#if wxUSE_HELP && wxUSE_MS_HTML_HELP && defined(__WIN95__) \
&& wxUSE_WXHTML_HELP && !defined(__WXUNIVERSAL__)
#include "wx/msw/helpchm.h"
#include "wx/html/helpctrl.h"
#include "wx/msw/helpbest.h"
IMPLEMENT_DYNAMIC_CLASS( wxBestHelpController, wxHelpControllerBase )
bool wxBestHelpController::Initialize( const wxString& filename )
{
// try wxCHMHelpController
wxCHMHelpController* chm = new wxCHMHelpController;
m_helpControllerType = wxUseChmHelp;
// do not warn upon failure
wxLogNull dontWarnOnFailure;
if( chm->Initialize( GetValidFilename( filename ) ) )
{
m_helpController = chm;
return true;
}
// failed
delete chm;
// try wxHtmlHelpController
wxHtmlHelpController* html = new wxHtmlHelpController;
m_helpControllerType = wxUseHtmlHelp;
if( html->Initialize( GetValidFilename( filename ) ) )
{
m_helpController = html;
return true;
}
// failed
delete html;
return false;
}
wxString wxBestHelpController::GetValidFilename( const wxString& filename ) const
{
wxString tmp = filename;
::wxStripExtension( tmp );
switch( m_helpControllerType )
{
case wxUseChmHelp:
if( ::wxFileExists( tmp + wxT(".chm") ) )
return tmp + wxT(".chm");
return filename;
case wxUseHtmlHelp:
if( ::wxFileExists( tmp + wxT(".htb") ) )
return tmp + wxT(".htb");
if( ::wxFileExists( tmp + wxT(".zip") ) )
return tmp + wxT(".zip");
if( ::wxFileExists( tmp + wxT(".hhp") ) )
return tmp + wxT(".hhp");
return filename;
default:
// we CAN'T get here
wxFAIL_MSG( wxT("wxBestHelpController: Must call Initialize, first!") );
}
return wxEmptyString;
}
#endif
// wxUSE_HELP && wxUSE_MS_HTML_HELP && defined(__WIN95__) && wxUSE_WXHTML_HELP