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#ifndef tdegtk_baseengine_h
#define tdegtk_baseengine_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 <gtk/gtk.h>
#include <vector>
//! forward declaration
class Animations;
//! base class for all engines
/*! engines map pointers to GtkWidget to some data, needed for animations */
class BaseEngine
{
public:
//! constructor
BaseEngine( Animations* parent ):
_parent( parent ),
_enabled( true )
{}
virtual ~BaseEngine()
{}
//! register widget
virtual bool registerWidget( GtkWidget* widget );
//! unregister widget
virtual void unregisterWidget( GtkWidget* ) = 0;
//! engine list
typedef std::vector< BaseEngine* > List;
//! enable state
/*! returns true if changed */
virtual bool setEnabled( bool value )
{
if( _enabled == value ) return false;
_enabled = value;
return true;
}
//! enable state
bool enabled( void ) const
{ return _enabled; }
protected:
//! returns parent
virtual Animations& parent( void ) const
{ return *_parent; }
private:
//! parent
Animations* _parent;
//! enable flag
bool _enabled;
};
#endif
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