Removed a "incititation-to-dead-lock-method"

The call to this method have been removed to, thus probably improving
stability

src/Tools/WaitCondition.hpp

@@ -39,11 +39,6 @@ class   WaitCondition
             delete m_waitCond;
             delete m_mutex;
         }
-        void            wait()
-        {
-            QMutexLocker    lock( m_mutex );
-            m_waitCond->wait( m_mutex );
-        }
         void            waitLocked()
         {
             m_waitCond->wait( m_mutex );

src/Workflow/ClipWorkflow.cpp

@@ -53,6 +53,7 @@ ClipWorkflow::~ClipWorkflow()
     delete m_initWaitCond;
     delete m_condMutex;
     delete m_waitCond;
+    delete m_renderWaitCond;
     delete m_requiredStateLock;
     delete m_stateLock;
 }
@@ -281,7 +282,7 @@ void            ClipWorkflow::unpause()
 void        ClipWorkflow::waitForCompleteRender( bool dontCheckRenderStarted /*= false*/ )
 {
     if ( isRendering() == true || dontCheckRenderStarted == true )
-        m_renderWaitCond->wait();
+        m_renderWaitCond->waitLocked();
 }
 
 void        ClipWorkflow::waitForCompleteInit()
@@ -321,3 +322,7 @@ void        ClipWorkflow::setFullSpeedRender( bool value )
     m_fullSpeedRender = value;
 }
 
+WaitCondition*  ClipWorkflow::getRenderCondWait()
+{
+    return m_renderWaitCond;
+}

src/Workflow/ClipWorkflow.h

@@ -148,6 +148,12 @@ class   ClipWorkflow : public QObject
         void                    unpause();
 
         void                    waitForCompleteInit();
+
+        /**
+         *  \brief      Return the wait condition associated to the render.
+         *              It's used when waiting for a render to terminate.
+         */
+        WaitCondition*          getRenderCondWait();
         void                    waitForCompleteRender( bool dontCheckRenderStarted = false );
         QMutex*                 getSleepMutex();
 

src/Workflow/TrackWorkflow.cpp

@@ -133,7 +133,10 @@ void        TrackWorkflow::renderClip( ClipWorkflow* cw, qint64 currentFrame,
         //The rendering state meens... whell it means that the frame is
         //beeing rendered, so we wait.
         cw->getStateLock()->unlock();
-        cw->waitForCompleteRender();
+        {
+            QMutexLocker    lock( cw->getRenderCondWait()->getMutex() );
+            cw->waitForCompleteRender();
+        }
         //This way we can trigger the appropriate if just below.
         //by restoring the initial state of the function, and just pretend that
         //nothing happened.
@@ -234,7 +237,10 @@ void                TrackWorkflow::stopClipWorkflow( ClipWorkflow* cw )
     else if ( cw->getState() == ClipWorkflow::Rendering )
     {
         cw->getStateLock()->unlock();
-        cw->waitForCompleteRender();
+        {
+            QMutexLocker    lock( cw->getRenderCondWait()->getMutex() );
+            cw->waitForCompleteRender();
+        }
         {
             QMutexLocker    lock( cw->getSleepMutex() );
             cw->queryStateChange( ClipWorkflow::Stopping );