Invalid slice usage crash fixed

Task-number: QTRD-3301

Change-Id: I0e39348a2e9392b4c1f0bd7ef26c5613272460e2
Reviewed-by: Pasi Keränen <pasi.keranen@digia.com>
Reviewed-by: Titta Heikkala <titta.heikkala@digia.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/src/datavisualization/engine/surface3drenderer.cpp b/src/datavisualization/engine/surface3drenderer.cpp
index fb7322cc..19ae0de4 100644
--- a/src/datavisualization/engine/surface3drenderer.cpp
+++ b/src/datavisualization/engine/surface3drenderer.cpp
@@ -782,6 +782,11 @@ void Surface3DRenderer::render(GLuint defaultFboHandle)
 
 void Surface3DRenderer::drawSlicedScene()
 {
+    if (!m_cachedSelectionMode.testFlag(QAbstract3DGraph::SelectionSlice)) {
+        qWarning("Selection mode QAbstract3DGraph::SelectionSlice not set. It must be set before calling setSlicingActive(true).");
+        return;
+    }
+
     QVector3D lightPos;
 
     QVector4D lightColor = Utils::vectorFromColor(m_cachedTheme->lightColor());