From 8fe6335a1985a665fb5a014c83313c48f18b6bde Mon Sep 17 00:00:00 2001
From: asl <asl@opencascade.com>
Date: Tue, 5 Sep 2017 10:31:40 +0300
Subject: [PATCH] activation of the flag for centered zoom

---
 src/HYDROGUI/HYDROGUI_Module.cxx | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/HYDROGUI/HYDROGUI_Module.cxx b/src/HYDROGUI/HYDROGUI_Module.cxx
index 38090fe5..4f8eeafd 100644
--- a/src/HYDROGUI/HYDROGUI_Module.cxx
+++ b/src/HYDROGUI/HYDROGUI_Module.cxx
@@ -1541,6 +1541,7 @@ void HYDROGUI_Module::onViewCreated( SUIT_ViewWindow* theViewWindow )
       aViewFrame->installEventFilter( this );
 
       GraphicsView_ViewPort* aViewPort = aViewFrame->getViewPort();
+      aViewPort->setInteractionFlag( GraphicsView_ViewPort::GlobalWheelScaling );
 
       connect( aViewPort, SIGNAL( vpMouseEvent( QGraphicsSceneMouseEvent* ) ),
                this, SLOT( onViewPortMouseEvent( QGraphicsSceneMouseEvent* ) ) );
-- 
2.39.2