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/******************************************************************************
*
* Copyright (C) 2002 Hugo PEREIRA <mailto: hugo.pereira@free.fr>
*
* This 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.
*
* This software is distributed in the hope that it will be useful, but WITHOUT
* Any WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*
*******************************************************************************/
#include "IconEngine.h"
#include "XmlOptions.h"
#include <QFileInfo>
//__________________________________________________________
IconEngine& IconEngine::get()
{
//* singleton
static IconEngine singleton_;
return singleton_;
}
//__________________________________________________________
IconEngine::IconEngine():
Counter( "IconEngine" )
{ Debug::Throw( "IconEngine::IconEngine.\n" ); }
//__________________________________________________________
bool IconEngine::reload()
{
Debug::Throw( "IconEngine::reload.\n" );
// load path from options
auto pathList( XmlOptions::get().specialOptions<File>( "PIXMAP_PATH" ) );
if( pathList == pixmapPath_ ) return false;
pixmapPath_ = pathList;
for( auto&& iter = cache_.begin(); iter != cache_.end(); ++iter )
{ cache_[iter.key()] = _get( iter.key(), iter.value().flags()&~static_cast<Base::IconCacheItem::Flags>(Base::IconCacheItem::Flag::FromCache) ); }
return true;
}
//__________________________________________________________
void IconEngine::clear()
{
Debug::Throw( "IconEngine::clear.\n" );
cache_.clear();
}
//__________________________________________________________
const Base::IconCacheItem& IconEngine::_get( const QString& file, Base::IconCacheItem::Flags flags )
{
// try find file in cache
if( flags & Base::IconCacheItem::Flag::FromCache )
{
Base::IconCache::iterator iter( cache_.find( file ) );
if( iter != cache_.end() ) return iter.value();
}
// debug
Debug::Throw() << "IconEngine::_get - file: " << file << endl;
// insert null icon for empty filename
Base::IconCacheItem out;
out.setFlags( flags );
if( file.isEmpty() )
{
out.addFile( file );
} else if( QFileInfo( file ).isAbsolute() ) {
out.QIcon::addFile( file );
out.addFile( file );
} else {
#if QT_VERSION >= 0x040600
QString truncatedName( File( file ).truncatedName() );
if( (flags&Base::IconCacheItem::Flag::FromTheme) && QIcon::hasThemeIcon( truncatedName ) )
{
out = Base::IconCacheItem( QIcon::fromTheme( truncatedName ) );
out.addFile( QObject::tr( "from theme" ) );
} else
#endif
{
// make sure pixmap path is initialized
if( pixmapPath_.empty() ) pixmapPath_ = XmlOptions::get().specialOptions<File>( "PIXMAP_PATH" );
// store list of loaded sizes
QList<QSize> sizes;
for( const auto& path:pixmapPath_ )
{
// skip empty path
if( path.isEmpty() ) continue;
// prepare filename
File pixmapFile;
// see if path is internal resource path
if( path.startsWith( ':' ) ) pixmapFile = File( file ).addPath( path );
else pixmapFile = File( path ).find( File( file ) );
// load pixmap
if( pixmapFile.isEmpty() ) continue;
QPixmap pixmap( pixmapFile );
if( pixmap.isNull() ) continue;
// check size
if( sizes.contains( pixmap.size() ) ) continue;
out.addPixmap( pixmap );
out.addFile( pixmapFile );
sizes << pixmap.size();
}
}
}
return cache_.insert( file, out ).value();
}
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