gns3 snap to grid.patch

diff --git a/gns3/graphics_view.py b/gns3/graphics_view.py
index d027c72..8ce7b9e 100644
--- a/gns3/graphics_view.py
+++ b/gns3/graphics_view.py
@@ -521,6 +521,11 @@ class GraphicsView(QtWidgets.QGraphicsView):
         """
 
         item = self.itemAt(event.pos())
+        if isinstance(item, NodeItem):
+            item.setPos(float(75 * round(item.x() / 75)), float(75 * round(item.y() / 75)))
+        for item in self.scene().selectedItems():
+            if isinstance(item, NodeItem):
+                item.setPos(float(75 * round(item.x() / 75)), float(75 * round(item.y() / 75)))
         # If the left  mouse button is not still pressed TOGETHER with the SHIFT key and neither is the middle button
         # this means the user is no longer trying to drag the view
         if self._dragging and not (event.buttons() == QtCore.Qt.LeftButton and event.modifiers() == QtCore.Qt.ShiftModifier) and not event.buttons() & QtCore.Qt.MidButton:
@@ -600,10 +605,14 @@ class GraphicsView(QtWidgets.QGraphicsView):
             if item:
                 # show item coords in the status bar
                 coords = "X: {} Y: {} Z: {}".format(item.x(), item.y(), item.zValue())
+                if isinstance(item, NodeItem):
+                    item.setPos(float(75 * round(item.x()/75)), float(75 * round(item.y()/75)))
                 self._main_window.uiStatusBar.showMessage(coords, 2000)
 
             # force the children to redraw because of a problem with QGraphicsEffect
             for item in self.scene().selectedItems():
+                if isinstance(item, NodeItem):
+                    item.setPos(float(75 * round(item.x() / 75)), float(75 * round(item.y() / 75)))
                 for child in item.childItems():
                     child.update()
             super().mouseMoveEvent(event)