fix VirtualMouse code rot

panda/src/device/virtualMouse.cxx

@@ -27,10 +27,12 @@ VirtualMouse(const string &name) :
   DataNode(name)
 {
   _pixel_xy_output = define_output("pixel_xy", EventStoreVec2::get_class_type());
+  _pixel_size_output = define_output("pixel_size", EventStoreVec2::get_class_type());
   _xy_output = define_output("xy", EventStoreVec2::get_class_type());
   _button_events_output = define_output("button_events", ButtonEventList::get_class_type());
 
   _pixel_xy = new EventStoreVec2(LPoint2f(0.0f, 0.0f));
+  _pixel_size = new EventStoreVec2(LPoint2f(0.0f, 0.0f));
   _xy = new EventStoreVec2(LPoint2f(0.0f, 0.0f));
   _button_events = new ButtonEventList;
   _next_button_events = new ButtonEventList;
@@ -128,6 +130,9 @@ do_transmit_data(DataGraphTraverser *, const DataNodeTransmit &,
   _next_button_events->clear();
   output.set_data(_button_events_output, EventParameter(_button_events));
 
+  _pixel_size->set_value(LPoint2f(_win_width, _win_height));
+  output.set_data(_pixel_size_output, EventParameter(_pixel_size));
+
   if (_mouse_on) {
     // The mouse is within the window.
     _pixel_xy->set_value(LPoint2f(_mouse_x, _mouse_y));

panda/src/device/virtualMouse.h

@@ -58,10 +58,12 @@ protected:
 private:
   // outputs
   int _pixel_xy_output;
+  int _pixel_size_output;
   int _xy_output;
   int _button_events_output;
 
   PT(EventStoreVec2) _pixel_xy;
+  PT(EventStoreVec2) _pixel_size;
   PT(EventStoreVec2) _xy;
   PT(ButtonEventList) _button_events;
   PT(ButtonEventList) _next_button_events;