From dea8a86dfd7e5df4f94f088201c968632564470f Mon Sep 17 00:00:00 2001
From: Ben Mathews <benjamin.l.mathews@gmail.com>
Date: Sun, 23 Jun 2019 18:05:11 -0600
Subject: [PATCH] Fixes https://github.com/pyqtgraph/pyqtgraph/issues/950
 (#951)

Moving a scale handle on a ROI object does not fire a sigRegionChangeStarted signal.  This patch adds the signal emit to handleMoveStarted().
---
 pyqtgraph/graphicsItems/ROI.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pyqtgraph/graphicsItems/ROI.py b/pyqtgraph/graphicsItems/ROI.py
index bb0523cf..fafb5592 100644
--- a/pyqtgraph/graphicsItems/ROI.py
+++ b/pyqtgraph/graphicsItems/ROI.py
@@ -428,6 +428,7 @@ class ROI(GraphicsObject):
 
     def handleMoveStarted(self):
         self.preMoveState = self.getState()
+        self.sigRegionChangeStarted.emit(self)
     
     def addTranslateHandle(self, pos, axes=None, item=None, name=None, index=None):
         """