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#ifndef BaseFileIconProvider_h
#define BaseFileIconProvider_h
/******************************************************************************
*
* 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 "BaseFileInfo.h"
#include "Counter.h"
#include "CustomPixmap.h"
#include "File.h"
#include <QHash>
#include <QIcon>
#include <QObject>
//* returns icon for a given FileInfo
class BaseFileIconProvider: public QObject, private Base::Counter<BaseFileIconProvider>
{
public:
//* constructor
explicit BaseFileIconProvider( QObject* = nullptr );
//* icon matching given file info
virtual const QIcon& icon( const BaseFileInfo& fileInfo )
{ return icon( fileInfo, fileInfo.type() ); }
//* icon matching given file info
virtual const QIcon& icon( const BaseFileInfo&, int );
//* clear
virtual void clear()
{ icons_.clear(); }
//* key, used for hash
class Key
{
public:
//* constructor
explicit Key()
{}
//* constructor
explicit Key( const QString& file, int type ):
file_( file ),
type_( type )
{}
//*@name accessors
//@{
//* file
const QString file() const { return file_; }
//* type
int type() const { return type_; }
//@}
private:
QString file_;
int type_ = 0;
};
//*@name pixmap manipulation icons
//@{
//* add link overlay icon
static CustomPixmap linked( const CustomPixmap& );
//* add hidden effect
static CustomPixmap hidden( const CustomPixmap& );
//* add clipped effect
static CustomPixmap clipped( const CustomPixmap& );
//@}
protected:
//* icon cache
using IconCache = QHash<Key, QIcon>;
IconCache& _icons()
{ return icons_; }
private:
//* icon map
IconCache icons_;
//* invalid icon
QIcon invalid_;
};
//* equal-to operator
inline bool operator == (const BaseFileIconProvider::Key& first, const BaseFileIconProvider::Key& second )
{ return first.file() == second.file() && first.type() == second.type(); }
//* hash
inline uint qHash( const BaseFileIconProvider::Key& key )
{ return qHash( key.file() )|key.type(); }
#endif
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