#ifndef adwaitadatamap_h
#define adwaitadatamap_h
/*************************************************************************
* Copyright (C) 2014 by Hugo Pereira Da Costa <hugo.pereira@free.fr> *
* *
* 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. *
* *
* This program 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, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA . *
*************************************************************************/
#include "adwaita.h"
#include <QObject>
#include <QMap>
#include <QPaintDevice>
namespace Adwaita
{
//* data map
/** it maps templatized data object to associated object */
template< typename K, typename T > class BaseDataMap: public QMap< const K*, WeakPointer<T> >
{
public:
using Key = const K*;
using Value = WeakPointer<T>;
//* constructor
BaseDataMap( void ):
QMap<Key, Value>(),
_enabled( true ),
_lastKey( NULL )
{}
//* destructor
virtual ~BaseDataMap( void )
{}
//* insertion
virtual typename QMap< Key, Value >::iterator insert( const Key& key, const Value& value, bool enabled = true )
{
if( value ) value.data()->setEnabled( enabled );
return QMap< Key, Value >::insert( key, value );
}
//* find value
Value find( Key key )
{
if( !( enabled() && key ) ) return Value();
if( key == _lastKey ) return _lastValue;
else {
Value out;
typename QMap<Key, Value>::iterator iter( QMap<Key, Value>::find( key ) );
if( iter != QMap<Key, Value>::end() ) out = iter.value();
_lastKey = key;
_lastValue = out;
return out;
}
}
//* unregister widget
bool unregisterWidget( Key key )
{
// check key
if( !key ) return false;
// clear last value if needed
if( key == _lastKey )
{
if( _lastValue ) _lastValue.clear();
_lastKey = NULL;
}
// find key in map
typename QMap<Key, Value>::iterator iter( QMap<Key, Value>::find( key ) );
if( iter == QMap<Key, Value>::end() ) return false;
// delete value from map if found
if( iter.value() ) iter.value().data()->deleteLater();
QMap<Key, Value>::erase( iter );
return true;
}
//* maxFrame
void setEnabled( bool enabled )
{
_enabled = enabled;
foreach( const Value& value, *this )
{ if( value ) value.data()->setEnabled( enabled ); }
}
//* enability
bool enabled( void ) const
{ return _enabled; }
//* duration
void setDuration( int duration ) const
{
foreach( const Value& value, *this )
{ if( value ) value.data()->setDuration( duration ); }
}
private:
//* enability
bool _enabled;
//* last key
Key _lastKey;
//* last value
Value _lastValue;
};
//* standard data map, using QObject as a key
template< typename T > class DataMap: public BaseDataMap< QObject, T >
{
public:
//* constructor
DataMap( void )
{}
//* destructor
virtual ~DataMap( void )
{}
};
//* QPaintDevice based dataMap
template< typename T > class PaintDeviceDataMap: public BaseDataMap< QPaintDevice, T >
{
public:
//* constructor
PaintDeviceDataMap( void )
{}
//* destructor
virtual ~PaintDeviceDataMap( void )
{}
};
}
#endif