Qt: make the mouse sensitivity in FSC configurable

Close #9462

modules/gui/qt4/components/controller.cpp

@@ -770,6 +770,8 @@ FullscreenControllerWidget::FullscreenControllerWidget( intf_thread_t *_p_i, QWi
     f_opacity = var_InheritFloat( p_intf, "qt-fs-opacity" );
 #endif
 
+    i_sensitivity = var_InheritInteger( p_intf, "qt-fs-sensitivity" );
+
     vlc_mutex_init_recursive( &lock );
 
     DCONNECT( THEMIM->getIM(), voutListChanged( vout_thread_t **, int ),
@@ -1185,8 +1187,8 @@ void FullscreenControllerWidget::mouseChanged( vout_thread_t *, int i_mousex, in
 
     b_toShow = false;
     if( ( i_mouse_last_move_x == -1 || i_mouse_last_move_y == -1 ) ||
-        ( abs( i_mouse_last_move_x - i_mousex ) > 2 ||
-          abs( i_mouse_last_move_y - i_mousey ) > 2 ) )
+        ( abs( i_mouse_last_move_x - i_mousex ) > i_sensitivity ||
+          abs( i_mouse_last_move_y - i_mousey ) > i_sensitivity ) )
     {
         i_mouse_last_move_x = i_mousex;
         i_mouse_last_move_y = i_mousey;

modules/gui/qt4/components/controller.hpp

@@ -319,6 +319,7 @@ private:
     int i_mouse_last_move_y;
 
     bool isWideFSC;
+    int i_sensitivity;
 };
 
 #endif

modules/gui/qt4/qt4.cpp

@@ -177,6 +177,8 @@ static void ShowDialog   ( intf_thread_t *, int, int, intf_dialog_args_t * );
 
 #define VOLUME_MAX_TEXT N_( "Maximum Volume displayed" )
 
+#define FULLSCREEN_CONTROL_PIXELS N_( "Fullscreen controller mouse sensitivity" )
+
 static const int i_notification_list[] =
     { NOTIFICATION_NEVER, NOTIFICATION_MINIMIZED, NOTIFICATION_ALWAYS };
 
@@ -272,6 +274,9 @@ vlc_module_begin ()
 
     add_integer_with_range( "qt-max-volume", 125, 60, 300, VOLUME_MAX_TEXT, VOLUME_MAX_TEXT, true)
 
+    add_integer_with_range( "qt-fs-sensitivity", 3, 0, 4000, FULLSCREEN_CONTROL_PIXELS,
+            FULLSCREEN_CONTROL_PIXELS, true)
+
     add_obsolete_bool( "qt-blingbling" )      /* Suppressed since 1.0.0 */
     add_obsolete_integer( "qt-display-mode" ) /* Suppressed since 1.1.0 */