From 0ab45b018fa98e9ef6cffd70178f208eb4f16550 Mon Sep 17 00:00:00 2001
From: Miikka Heikkinen <miikka.heikkinen@digia.com>
Date: Thu, 25 Sep 2014 15:04:44 +0300
Subject: Implement zooming to cursor
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Zooming to cursor is now default operating mode of
the default input handler.

Task-number: QTRD-3263
Change-Id: I5699fc0ce7393059538972cd52f31f06d87e3d8d
Reviewed-by: Tomi Korpipää <tomi.korpipaa@digia.com>
---
 examples/datavisualization/volumetric/volumetric.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'examples/datavisualization')

diff --git a/examples/datavisualization/volumetric/volumetric.cpp b/examples/datavisualization/volumetric/volumetric.cpp
index cbbaf2a1..65599c31 100644
--- a/examples/datavisualization/volumetric/volumetric.cpp
+++ b/examples/datavisualization/volumetric/volumetric.cpp
@@ -23,6 +23,7 @@
 #include <QtDataVisualization/q3dtheme.h>
 #include <QtDataVisualization/qcustom3dlabel.h>
 #include <QtDataVisualization/q3dscatter.h>
+#include <QtDataVisualization/q3dinputhandler.h>
 #include <QtCore/qmath.h>
 #include <QtWidgets/QLabel>
 #include <QtWidgets/QRadioButton>
@@ -86,6 +87,9 @@ VolumetricModifier::VolumetricModifier(Q3DScatter *scatter)
     //! [6]
     m_graph->activeTheme()->setBackgroundEnabled(false);
 
+    // Only allow zooming at the center to avoid clipping issues
+    static_cast<Q3DInputHandler *>(m_graph->activeInputHandler())->setZoomAtTargetEnabled(false);
+
     toggleAreaAll(true);
 
 #if !defined(QT_OPENGL_ES_2)
-- 
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