Add selection signaling for scatter

+ Fix crashes associated with selection
+ Optimized selection color handling

Task-number: QTRD-2132
Task-number: QTRD-2208

Change-Id: Ie38c6779591fb0467cffb052edf7609f6677278a
Reviewed-by: Tomi Korpipää <tomi.korpipaa@digia.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/src/datavis3d/engine/q3dscatter.h b/src/datavis3d/engine/q3dscatter.h
index 2094bb5d..26e3da08 100644
--- a/src/datavis3d/engine/q3dscatter.h
+++ b/src/datavis3d/engine/q3dscatter.h
@@ -40,6 +40,7 @@ class QT_DATAVIS3D_EXPORT Q3DScatter : public Q3DWindow
     Q_PROPERTY(QFont font READ font WRITE setFont)
     Q_PROPERTY(bool gridVisible READ isGridVisible WRITE setGridVisible)
     Q_PROPERTY(bool backgroundVisible READ isBackgroundVisible WRITE setBackgroundVisible)
+    Q_PROPERTY(int selectedItemIndex READ selectedItemIndex WRITE setSelectedItemIndex NOTIFY selectedItemIndexChanged)
     Q_ENUMS(QtDataVis3D::QDataVis::SelectionMode)
     Q_ENUMS(QtDataVis3D::QDataVis::ShadowQuality)
     Q_ENUMS(QtDataVis3D::QDataVis::LabelTransparency)
@@ -79,6 +80,9 @@ public:
     void setBackgroundVisible(bool visible);
     bool isBackgroundVisible() const;
 
+    void setSelectedItemIndex(int index);
+    int selectedItemIndex() const;
+
     void setShadowQuality(QDataVis::ShadowQuality quality);
     QDataVis::ShadowQuality shadowQuality() const;
 
@@ -96,6 +100,7 @@ public:
 
 signals:
     void shadowQualityChanged(QDataVis::ShadowQuality quality);
+    void selectedItemIndexChanged(int index);
 
 protected:
     void render();