1 files changed, 13 insertions, 0 deletions
diff --git a/scatterplot.h b/scatterplot.h
index 3f2fee6..58774a9 100644
--- a/scatterplot.h
+++ b/scatterplot.h
@@ -22,8 +22,21 @@ public slots:
 
 protected:
     QSGNode *updatePaintNode(QSGNode *oldNode, UpdatePaintNodeData *);
+    void mousePressEvent(QMouseEvent *event);
+    void mouseMoveEvent(QMouseEvent *event);
+    void mouseReleaseEvent(QMouseEvent *event);
 
 private:
+    QSGNode *newGlyphNodeTree();
+
+    enum InteractionState {
+        INTERACTION_NONE,
+        INTERACTION_SELECTING,
+        INTERACTION_SELECTED,
+        INTERACTION_MOVING
+    } m_currentState;
+    QPointF m_dragOriginPos, m_dragCurrentPos;
+
     arma::mat m_data;
     ColorScale m_colorScale;
 };