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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
+