From c33c6275a7037c61f53b5c9ce0a965ec034609bd Mon Sep 17 00:00:00 2001
From: asl <asl@opencascade.com>
Date: Mon, 20 Nov 2017 11:08:33 +0300
Subject: [PATCH] refs #1324: patch for activation/deactivation modes on
 modules switch

---
 src/OCCViewer/OCCViewer_ViewWindow.cxx | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/src/OCCViewer/OCCViewer_ViewWindow.cxx b/src/OCCViewer/OCCViewer_ViewWindow.cxx
index 5b99ac06c..c30752036 100644
--- a/src/OCCViewer/OCCViewer_ViewWindow.cxx
+++ b/src/OCCViewer/OCCViewer_ViewWindow.cxx
@@ -630,8 +630,18 @@ void OCCViewer_ViewWindow::activateZoom()
 
 void OCCViewer_ViewWindow::onPanning()
 {
-  myPanningByBtn = true;
-  activatePanning();
+  OCCViewer_ViewManager* aMgr = dynamic_cast<OCCViewer_ViewManager*>( getViewManager() );
+  bool isChained = aMgr->isChainedOperations();
+  bool isReset = ( myPanningByBtn && isChained );
+  if( isReset )
+  {
+    resetState();
+  }
+  else
+  {
+    myPanningByBtn = true;
+    activatePanning();
+  }
 }
 
 /*!
@@ -1230,6 +1240,8 @@ void OCCViewer_ViewWindow::resetState()
 
   setTransformInProcess( false );
   setTransformRequested( NOTHING );
+
+  myPanningByBtn = false;
 }
 
 
-- 
2.39.2