qt4: add option --qt-fullscreen-screennumber to allow define screen where fullscreen goes

screennumbers starts from 1 onward, this allows user again to define if
he wants fullscreen window on particular screen instead of the one where
interface is.

modules/gui/qt4/components/controller.cpp

@@ -711,7 +711,9 @@ FullscreenControllerWidget::FullscreenControllerWidget( intf_thread_t *_p_i, QWi
 
     /* First Move */
     QPoint pos1 = getSettings()->value( "FullScreen/pos" ).toPoint();
-    int number = QApplication::desktop()->screenNumber( p_intf->p_sys->p_mi );
+    int number =  config_GetInt( p_intf, "qt-fullscreen-screennumber" );
+    if( number == -1 || number > QApplication::desktop()->numScreens() )
+        number = QApplication::desktop()->screenNumber( p_intf->p_sys->p_mi );
     if( QApplication::desktop()->screenGeometry( number ).contains( pos1, true ) )
     {
         move( pos1 );

modules/gui/qt4/components/interface_widgets.cpp

@@ -205,7 +205,14 @@ void VideoWidget::SetFullScreen( bool b_fs )
 
     if( b_fs )
     {   /* Go full-screen */
-        int numscreen = QApplication::desktop()->screenNumber( p_intf->p_sys->p_mi );
+        int numscreen =  config_GetInt( p_intf, "qt-fullscreen-screennumber" );
+        /* if user hasn't defined screennumber, or screennumber that is bigger
+         * than current number of screens, take screennumber where current interface
+         * is
+         */
+        if( numscreen == -1 || numscreen > QApplication::desktop()->numScreens() )
+            numscreen = QApplication::desktop()->screenNumber( p_intf->p_sys->p_mi );
+
         QRect screenres = QApplication::desktop()->screenGeometry( numscreen );
 
         reparentable->setWindowState( newstate );

modules/gui/qt4/qt4.cpp

@@ -161,6 +161,10 @@ static void ShowDialog   ( intf_thread_t *, int, int, intf_dialog_args_t * );
 #define QT_FULLSCREEN_TEXT N_( "Show a controller in fullscreen mode" )
 #define QT_NATIVEOPEN_TEXT N_( "Embed the file browser in open dialog" )
 
+#define FULLSCREEN_NUMBER_TEXT N_( "Define which screen fullscreen goes" )
+#define FULLSCREEN_NUMBER_LONGTEXT N_( "Screennumber of fullscreen, instead of" \
+                                       "same screen where interface is" )
+
 /* Various modes definition */
 static const int i_mode_list[] =
     { QT_NORMAL_MODE, QT_ALWAYS_VIDEO_MODE, QT_MINIMAL_MODE };
@@ -233,6 +237,9 @@ vlc_module_begin ()
               false )
         change_internal ()
 
+    add_integer( "qt-fullscreen-screennumber", -1, NULL, FULLSCREEN_NUMBER_TEXT,
+               FULLSCREEN_NUMBER_LONGTEXT, false );
+
     add_obsolete_bool( "qt-blingbling" ) /* Suppressed since 1.0.0 */
 
     add_submodule ()