From 5c58448658bb63673b52139bac20599f16fa2b93 Mon Sep 17 00:00:00 2001
From: Luke Campagnola <luke.campagnola@gmail.com>
Date: Mon, 9 May 2016 09:00:41 -0700
Subject: [PATCH] minor ROI corrections

---
 pyqtgraph/graphicsItems/ROI.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/pyqtgraph/graphicsItems/ROI.py b/pyqtgraph/graphicsItems/ROI.py
index 3aa19daa..8a12ff3b 100644
--- a/pyqtgraph/graphicsItems/ROI.py
+++ b/pyqtgraph/graphicsItems/ROI.py
@@ -225,7 +225,9 @@ class ROI(GraphicsObject):
         multiple change functions to be called sequentially while minimizing processing overhead
         and repeated signals. Setting update=False also forces finish=False.
         """
-        
+        # This avoids the temptation to do setPos(x, y)
+        if not isinstance(update, bool):
+            raise TypeError("update argument must be bool.")
         pos = Point(pos)
         self.state['pos'] = pos
         QtGui.QGraphicsItem.setPos(self, pos)
@@ -944,6 +946,7 @@ class ROI(GraphicsObject):
             
         if finish:
             self.stateChangeFinished()
+            self.informViewBoundsChanged()
     
     def stateChangeFinished(self):
         self.sigRegionChangeFinished.emit(self)