File indexing completed on 2024-05-12 05:34:36

 /*
     this file is part of the oxygen gtk engine
     SPDX-FileCopyrightText: 2010 Hugo Pereira Da Costa <hugo.pereira@free.fr>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #include "oxygentimelineserver.h"
 #include "oxygentimeline.h"
 #include "../config.h"
 
 #include <gdk/gdk.h>
 #include <iostream>
 
 namespace Oxygen
 {
 
     //! time interval between two updates (use 20 msec for now)
     static const int updateInterval = 20;
 
     //____________________________________________________________________
     TimeLineServer* TimeLineServer::_instance = 0L;
     TimeLineServer& TimeLineServer::instance( void )
     {
 
         if( !_instance )
         { _instance = new TimeLineServer(); }
 
         return *_instance;
     }
 
     //____________________________________________________________________
     TimeLineServer::TimeLineServer( void ):
         _timerId( 0 )
     {
         #if OXYGEN_DEBUG
         std::cerr << "TimeLineServer::TimeLineServer." << std::endl;
         #endif
     }
 
     //____________________________________________________________________
     TimeLineServer::~TimeLineServer( void )
     {
 
         #if OXYGEN_DEBUG
         std::cerr << "TimeLineServer::~TimeLineServer." << std::endl;
         #endif
 
         // clear timer Id and singleton
         if( _timerId ) g_source_remove( _timerId );
         _instance = 0L;
 
     }
 
     //____________________________________________________________________
     void TimeLineServer::start( void )
     {
 
         if( !_timerId )
         { _timerId =  gdk_threads_add_timeout( updateInterval, (GSourceFunc)update, this ); }
 
         return;
 
     }
 
     //____________________________________________________________________
     void TimeLineServer::stop( void )
     {
 
         if( _timerId )
         {
             g_source_remove( _timerId );
             _timerId = 0;
         }
 
     }
 
     //____________________________________________________________________
     gboolean TimeLineServer::update( gpointer data )
     {
 
         bool running( false );
         TimeLineServer& server( *static_cast<TimeLineServer*>( data ) );
 
         // loop over timelines
         for( TimeLineSet::const_iterator iter = server._timeLines.begin(); iter != server._timeLines.end(); ++iter )
         { if( (*iter)->update() ) running = true; }
 
         // stop timeout
         if( !running ) server.stop();
 
         // return true if at least one timeline is still running
         return gboolean( running );
 
     }
 
 }