1 files changed, 55 insertions, 0 deletions
diff --git a/src/charts/ChartScene.h b/src/charts/ChartScene.h
new file mode 100644
index 0000000..3a9af62
--- /dev/null
+++ b/src/charts/ChartScene.h
@@ -0,0 +1,55 @@
+#ifndef CHART_SCENE_H
+#define CHART_SCENE_H
+
+#include <QtCore>
+#include <QtWidgets>
+
+#include "Chart.h"
+#include "DataPoint.h"
+
+class ChartScene: public QGraphicsScene
+{
+public:
+    static const QSizeF Margin;
+    static const QSizeF Padding;
+    static const QSizeF DataSetPadding;
+
+public:
+    static QSizeF getBorder();
+
+public:
+    ChartScene(Chart* chart);
+    void setDataSet(const QList<DataPoint>& dataSet, int xTickInterval);
+    void setDataDirection(int direction) { dataDirection = direction; }
+    QString getXLabel() const { return chart->getXLabel(); }
+    QString getYLabel() const { return chart->getYLabel(); }
+    int getDataDirection() const { return dataDirection; }
+    QPointF getChartOrigin() const;
+    QRectF getChartRect() const;
+    QSizeF getDataSetSize() const;
+    QList<DataPoint> getDataSet() const {return dataSet; }
+    qreal getXTickSpacing() const;
+    qreal getYPosFromValue(int value) const;
+    int getMinY() const { return yMin; }
+    int getMaxY() const { return yMax; }
+    int getYDiff() const { return yMax - yMin; }
+    int getYTickSpacing() const { return yTickSpacing; }
+
+private:
+    void initYScale();
+    int computeMinY() const;
+    int computeMaxY() const;
+    int computeYTickSpacing() const;
+    void extendYMinMax();
+
+private:
+    Chart* chart;
+    QList<DataPoint> dataSet;
+    int yMin;
+    int yMax;
+    qreal yScale;
+    int yTickSpacing;
+    int dataDirection;
+};
+
+#endif