1 files changed, 38 insertions, 0 deletions
diff --git a/historygraph.h b/historygraph.h
new file mode 100644
index 0000000..60cce94
--- /dev/null
+++ b/historygraph.h
@@ -0,0 +1,38 @@
+#ifndef HISTORYGRAPH_H
+#define HISTORYGRAPH_H
+
+#include <QtQuick>
+#include <armadillo>
+
+class HistoryGraph : public QQuickItem
+{
+    Q_OBJECT
+public:
+    HistoryGraph(QQuickItem *parent = 0);
+    ~HistoryGraph();
+
+signals:
+    void currentItemChanged(const arma::mat &item);
+
+public slots:
+    void addHistoryItem(const arma::mat &item);
+
+protected:
+    QSGNode *updatePaintNode(QSGNode *oldNode, UpdatePaintNodeData *);
+    void mousePressEvent(QMouseEvent *event);
+
+private:
+    class HistoryItemNode;
+
+    HistoryItemNode *nodeAt(const QPointF &pos) const;
+    HistoryItemNode *nodeAt(const QPointF &pos, HistoryItemNode *node) const;
+
+    QSGNode *createNodeTree();
+    void updateNodeTree(QSGNode *root);
+    void addScatterplot(QSGNode *node, const HistoryItemNode *historyItemNode, float x, float y, float w, float h);
+
+    HistoryItemNode *m_firstNode, *m_currentNode;
+    bool m_needsUpdate;
+};
+
+#endif // HISTORYGRAPH_H