Corrected crappy behaviour when moving along in the clip.

This also solves a "lag" problem.

src/Workflow/MainWorkflow.cpp

@@ -124,9 +124,9 @@ void                MainWorkflow::getOutput()
             if ( m_tracks[i].activated() == false )
                 continue ;
 
+            m_nbTracksToRender.fetchAndAddAcquire( 1 );
             if ( m_tracks[i]->getOutput( m_currentFrame ) != false )
             {
-                m_nbTracksToRender.fetchAndAddAcquire( 1 );
                 break ;
             }
         }
@@ -195,7 +195,7 @@ void        MainWorkflow::setPosition( float pos )
     qint64  frame = static_cast<qint64>( (float)m_length * pos );
     m_currentFrame = frame;
     emit frameChanged( frame );
-    cancelSynchronisation();
+//    cancelSynchronisation();
     //Do not emit a signal for the RenderWidget, since it's the one that triggered that call...
 }
 

src/Workflow/TrackWorkflow.cpp

@@ -275,7 +275,6 @@ bool                TrackWorkflow::getOutput( qint64 currentFrame )
     {
         qint64          start = it.key();
         ClipWorkflow*   cw = it.value();
-
         //Is the clip supposed to render now ?
         if ( start <= currentFrame && currentFrame <= start + cw->getClip()->getLength() )
         {
@@ -299,7 +298,9 @@ bool                TrackWorkflow::getOutput( qint64 currentFrame )
         ++it;
     }
     if ( hasRendered == false )
+    {
         clipWorkflowRenderCompleted( NULL );
+    }
     return hasRendered;
 }
 
@@ -403,7 +404,9 @@ void        TrackWorkflow::clipWorkflowRenderCompleted( ClipWorkflow* cw )
     //When there is nothing to render, m_nbClipToRender will be equal to one here, so we check for minus
     //or equal to 0
     if ( m_nbClipToRender <= 0 )
+    {
         emit renderCompleted( m_trackId );
+    }
 }
 
 unsigned char*  TrackWorkflow::getSynchroneOutput()