From 7676a38ea8a06d3d31228cb7eb1be00f90de46d3 Mon Sep 17 00:00:00 2001
From: Samuel Fadel <samuelfadel@gmail.com>
Date: Thu, 7 Jan 2016 15:10:20 +0100
Subject: Added a bar chart.

* HistoryGraph replaced by BarChart
* HistoryGraph not removed from code, might be useful in the future
---
 barchart.h | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 barchart.h

(limited to 'barchart.h')

diff --git a/barchart.h b/barchart.h
new file mode 100644
index 0000000..ccbb13e
--- /dev/null
+++ b/barchart.h
@@ -0,0 +1,34 @@
+#ifndef BARCHART_H
+#define BARCHART_H
+
+#include <QtQuick>
+#include <armadillo>
+
+class BarChart : public QQuickItem
+{
+    Q_OBJECT
+public:
+    BarChart(QQuickItem *parent = 0);
+    ~BarChart();
+
+signals:
+    void valuesChanged(const arma::vec &values);
+
+public slots:
+    void setValues(const arma::vec &values);
+
+protected:
+    QSGNode *updatePaintNode(QSGNode *oldNode, UpdatePaintNodeData *);
+    void hoverMoveEvent(QHoverEvent *event);
+    void mousePressEvent(QMouseEvent *event);
+
+private:
+    QSGNode *newBarNode();
+    void updateBarNodeGeom(QSGNode *barNode, float x, float width, float height);
+    void updateBars(QSGNode *root);
+
+    arma::vec m_values;
+    bool m_shouldUpdateBars;
+};
+
+#endif // BARCHART_H
-- 
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