Minor fixes in Modules handles and introduction of threads into each module

The modules are applied inside a different thread in order to avoid lag
in the main window while processing. This still need further testing
A new flag is added to selected if the threads should be used in this
purpose

source/app/PlaYUVerModuleIf.cpp

@@ -0,0 +1,70 @@
+/*    This file is a part of plaYUVer project
+ *    Copyright (C) 2014  by Luis Lucas      (luisfrlucas@gmail.com)
+ *                           Joao Carreira   (jfmcarreira@gmail.com)
+ *
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program 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 General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License along
+ *   with this program; if not, write to the Free Software Foundation, Inc.,
+ *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/**
+ * \file     PlaYUVerModuleIf.cpp
+ * \brief    PlaYUVer modules interface
+ */
+
+#include "PlaYUVerModuleIf.h"
+#include "SubWindowHandle.h"
+
+namespace plaYUVer
+{
+
+PlaYUVerModuleIf::PlaYUVerModuleIf() :
+        m_pcAction( NULL ),
+        m_pcDisplaySubWindow( NULL )
+{
+  for( Int i = 0; i < MAX_NUMBER_FRAMES; i++ )
+  {
+    m_pcSubWindow[i] = NULL;
+  }
+}
+
+void PlaYUVerModuleIf::run()
+{
+  PlaYUVerFrame* pcProcessedFrame;
+  switch( m_cModuleDef.m_uiNumberOfFrames )
+  {
+  case MODULE_REQUIRES_ONE_FRAME:
+    pcProcessedFrame = process( m_pcSubWindow[0]->getCurrFrame() );
+    break;
+  case MODULE_REQUIRES_TWO_FRAMES:
+    pcProcessedFrame = process( m_pcSubWindow[0]->getCurrFrame(), m_pcSubWindow[1]->getCurrFrame() );
+    break;
+  case MODULE_REQUIRES_THREE_FRAMES:
+    pcProcessedFrame = process( m_pcSubWindow[0]->getCurrFrame(), m_pcSubWindow[1]->getCurrFrame(), m_pcSubWindow[2]->getCurrFrame() );
+    break;
+  }
+  postProgress( true, pcProcessedFrame );
+}
+
+Void PlaYUVerModuleIf::postProgress( Bool success, PlaYUVerFrame* pcProcessedFrame )
+{
+  EventData *eventData = new EventData();
+  eventData->m_bSuccess = success;
+  eventData->m_pcProcessedFrame = pcProcessedFrame;
+  eventData->m_pcModule = this;
+  if( parent() )
+  QCoreApplication::postEvent( parent(), eventData );
+}
+
+}  // NAMESPACE
+