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/*
**************************************************************************
description
--------------------
copyright : (C) 2002 by Andreas Zehender
email : zehender@kde.org
**************************************************************************
**************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
**************************************************************************/
#include "pmresourcelocator.h"
#include "pmpovrayrenderwidget.h"
#include "pmdebug.h"
#include <qfileinfo.h>
#include <qdir.h>
PMResourceLocator* PMResourceLocator::s_pInstance = 0;
KStaticDeleter<PMResourceLocator> PMResourceLocator::s_staticDeleter;
PMResourceLocator::PMResourceLocator( )
: m_cache( 100, 109, true )
{
m_cache.setAutoDelete( true );
}
PMResourceLocator::~PMResourceLocator( )
{
m_cache.clear( );
}
QString PMResourceLocator::findFile( const QString& file )
{
if( !s_pInstance )
s_staticDeleter.setObject( s_pInstance, new PMResourceLocator( ) );
return s_pInstance->lookUp( file );
}
void PMResourceLocator::clearCache( )
{
if( s_pInstance )
s_pInstance->m_cache.clear( );
}
QString PMResourceLocator::lookUp( const QString& file )
{
if( file.isEmpty( ) )
return QString::null;
kdDebug( PMArea ) << "LookUp: " << file << endl;
QString* ps = m_cache.find( file );
if( ps )
return *ps;
bool found = false;
QString fullPath = QString::null;
if( file[0] == '/' )
{
// absolute path, library paths are not used
QFileInfo info( file );
if( info.exists( ) && info.isReadable( ) && info.isFile( ) )
{
found = true;
fullPath = file;
}
}
else
{
QStringList plist = PMPovrayRenderWidget::povrayLibraryPaths( );
QStringList::ConstIterator it = plist.begin( );
for( ; ( it != plist.end( ) ) && !found; ++it )
{
QDir dir( *it );
QFileInfo info( dir, file );
if( info.exists( ) && info.isReadable( ) && info.isFile( ) )
{
found = true;
fullPath = info.absFilePath( );
}
}
}
if( found )
{
QString* ni = new QString( fullPath );
if( !m_cache.insert( file, ni ) )
delete ni;
kdDebug( PMArea ) << "File \"" << file << "\" found in "
<< fullPath << endl;
}
return fullPath;
}
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