Added logic to save the video auto scaling config setting between restarts of Qt GUI. This addresses part of issue #311.

src/drivers/Qt/ConsoleVideoConf.cpp

@@ -164,6 +164,7 @@ ConsoleVideoConfDialog_t::ConsoleVideoConfDialog_t(QWidget *parent)
 	connect(clipSidesCbx, SIGNAL(stateChanged(int)), this, SLOT(clipSidesChanged(int)) );
 	connect(showFPS_cbx , SIGNAL(stateChanged(int)), this, SLOT(showFPSChanged(int)) );
 	connect(sqrPixCbx   , SIGNAL(stateChanged(int)), this, SLOT(sqrPixChanged(int)) );
+	connect(autoScaleCbx, SIGNAL(stateChanged(int)), this, SLOT(autoScaleChanged(int)) );
 
 	main_vbox->addWidget( new_PPU_ena );
 	main_vbox->addWidget( frmskipcbx  );
@@ -309,6 +310,26 @@ void ConsoleVideoConfDialog_t::openGL_linearFilterChanged( int value )
       }
    }
 }
+//----------------------------------------------------
+void ConsoleVideoConfDialog_t::autoScaleChanged( int value )
+{
+   bool opt =  (value != Qt::Unchecked);
+   g_config->setOption("SDL.AutoScale", opt );
+   g_config->save ();
+
+   if ( consoleWindow != NULL )
+   {
+      if ( consoleWindow->viewport_GL )
+      {
+         consoleWindow->viewport_GL->setAutoScaleOpt( opt );
+      }
+      if ( consoleWindow->viewport_SDL )
+      {
+         consoleWindow->viewport_SDL->setAutoScaleOpt( opt );
+      }
+   }
+}
+
 //----------------------------------------------------
 void ConsoleVideoConfDialog_t::use_new_PPU_changed( int value )
 {

src/drivers/Qt/ConsoleVideoConf.h

@@ -56,6 +56,7 @@ class ConsoleVideoConfDialog_t : public QDialog
 
 	private slots:
 		void  openGL_linearFilterChanged( int value );
+		void  autoScaleChanged( int value );
 		void  sqrPixChanged( int value );
 		void  use_new_PPU_changed( int value );
 		void  frameskip_changed( int value );

src/drivers/Qt/ConsoleViewerGL.cpp

@@ -79,6 +79,10 @@ ConsoleViewGL_t::ConsoleViewGL_t(QWidget *parent)
 		g_config->getOption("SDL.OpenGLip", &opt );
 		
 		linearFilter = (opt) ? true : false;
+
+		g_config->getOption ("SDL.AutoScale", &opt);
+
+		autoScaleEna = (opt) ? true : false;
 	}
 }
 

src/drivers/Qt/ConsoleViewerSDL.cpp

@@ -82,6 +82,10 @@ ConsoleViewSDL_t::ConsoleViewSDL_t(QWidget *parent)
 		g_config->getOption("SDL.OpenGLip", &opt );
 		
 		linearFilter = (opt) ? true : false;
+
+		g_config->getOption ("SDL.AutoScale", &opt);
+
+		autoScaleEna = (opt) ? true : false;
 	}
 }