File indexing completed on 2024-05-12 17:05:48

 #ifndef oxygeninnershadowdata_h
 #define oxygeninnershadowdata_h
 /*
 * this file is part of the oxygen gtk engine
 * SPDX-FileCopyrightText: 2010 Hugo Pereira Da Costa <hugo.pereira@free.fr>
 * SPDX-FileCopyrightText: 2010 Ruslan Kabatsayev <b7.10110111@gmail.com>
 *
 * SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #include "oxygensignal.h"
 
 #include <gtk/gtk.h>
 #include <algorithm>
 #include <map>
 
 namespace Oxygen
 {
     //! handle inner shadow drawing using composited GdkWindow API
     class InnerShadowData
     {
 
         public:
 
         //! constructor
         InnerShadowData( void ):
             _target(0)
         {}
 
         //! destructor
         virtual ~InnerShadowData( void )
         { disconnect( _target ); }
 
         //! setup connections
         void connect( GtkWidget* );
 
         //! disconnect
         void disconnect( GtkWidget* );
 
         //! register child
         /*! needed to restore composited state on disconnect */
         void registerChild( GtkWidget* );
 
         protected:
 
         //! unregister child
         void unregisterChild( GtkWidget* );
 
         //!@ callbacks
         //@{
         static gboolean childUnrealizeNotifyEvent( GtkWidget*, gpointer );
         static gboolean targetExposeEvent( GtkWidget*, GdkEventExpose*, gpointer );
         //@}
 
         private:
 
         //! target widget
         GtkWidget* _target;
 
         //! expose
         Signal _exposeId;
 
         //! child data
         class ChildData
         {
             public:
 
             //! constructor
             ChildData( void ):
                 _initiallyComposited( false )
             {}
 
             //! destructor
             virtual ~ChildData( void )
             {}
 
             //! disconnect all signals
             void disconnect( GtkWidget* );
 
             //! signal
             Signal _unrealizeId;
 
             //! keep track of composited state
             bool _initiallyComposited;
         };
 
         //! map registered children and corresponding data
         typedef std::map<GtkWidget*, ChildData> ChildDataMap;
         ChildDataMap _childrenData;
 
     };
 
 }
 
 #endif