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#ifndef tdegtk_genericengine_h
#define tdegtk_genericengine_h
/*
* this file was largely taken from the oxygen gtk engine
* Copyright (c) 2010 Hugo Pereira Da Costa <[email protected]>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or(at your option ) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
#include "tdegtk-baseengine.h"
#include "tdegtk-datamap.h"
#include <gtk/gtk.h>
//! forward declaration
class Animations;
//! associates widgets with some type of data
template< typename T>
class GenericEngine: public BaseEngine
{
public:
//! constructor
GenericEngine( Animations* widget ):
BaseEngine( widget )
{}
//! destructor
virtual ~GenericEngine( void )
{}
//! register widget
virtual bool registerWidget( GtkWidget* widget )
{
if( _data.contains( widget ) ) return false;
if( enabled() )
{
T& data( _data.registerWidget( widget ) );
data.connect( widget );
} else _data.registerWidget( widget );
BaseEngine::registerWidget( widget );
return true;
}
//! unregister widget
virtual void unregisterWidget( GtkWidget* widget )
{
if( !_data.contains( widget ) ) return;
_data.value( widget ).disconnect( widget );
_data.erase( widget );
}
//! enabled state
/*! returns true if changed */
inline virtual bool setEnabled( bool value );
//! true if widget is included
virtual bool contains( GtkWidget* widget )
{ return _data.contains( widget ); }
protected:
//! return refence to data
virtual DataMap<T>& data( void )
{ return _data; }
//! return refence to data
virtual const DataMap<T>& data( void ) const
{ return _data; }
private:
//! map widgets to data
DataMap<T> _data;
};
//________________________________________________________________________
template< typename T> bool GenericEngine<T>::setEnabled( bool value )
{
if( enabled() == value ) return false;
BaseEngine::setEnabled( value );
if( enabled() ) _data.connectAll();
else _data.disconnectAll();
return true;
}
#endif
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