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+/****************************************************************************
+**
+** Copyright (C) 2014 Digia Plc
+** All rights reserved.
+** For any questions to Digia, please use contact form at http://qt.digia.com
+**
+** This file is part of the Qt Enterprise Charts Add-on.
+**
+** $QT_BEGIN_LICENSE$
+** Licensees holding valid Qt Enterprise licenses may use this file in
+** accordance with the Qt Enterprise License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://qt.digia.com
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+// W A R N I N G
+// -------------
+//
+// This file is not part of the Qt Enterprise Chart API. It exists purely as an
+// implementation detail. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+
+#ifndef SPLINECHARTITEM_P_H
+#define SPLINECHARTITEM_P_H
+
+#include "qsplineseries.h"
+#include "xychart_p.h"
+
+QT_CHARTS_BEGIN_NAMESPACE
+
+class SplineAnimation;
+
+class SplineChartItem : public XYChart
+{
+ Q_OBJECT
+ Q_INTERFACES(QGraphicsItem)
+public:
+ SplineChartItem(QSplineSeries *series, QGraphicsItem *item = 0);
+
+ //from QGraphicsItem
+ QRectF boundingRect() const;
+ void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
+ QPainterPath shape() const;
+
+ void setControlGeometryPoints(QVector<QPointF>& points);
+ QVector<QPointF> controlGeometryPoints() const;
+
+ void setAnimation(SplineAnimation *animation);
+ ChartAnimation *animation() const;
+
+public Q_SLOTS:
+ void handleUpdated();
+
+protected:
+ void updateGeometry();
+ QVector<QPointF> calculateControlPoints(const QVector<QPointF> &points);
+ QVector<qreal> firstControlPoints(const QVector<qreal>& vector);
+ void updateChart(QVector<QPointF> &oldPoints, QVector<QPointF> &newPoints, int index);
+ void mousePressEvent(QGraphicsSceneMouseEvent *event);
+ void hoverEnterEvent(QGraphicsSceneHoverEvent *event);
+ void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
+
+private:
+ QSplineSeries *m_series;
+ QPainterPath m_path;
+ QPainterPath m_pathPolarRight;
+ QPainterPath m_pathPolarLeft;
+ QPainterPath m_fullPath;
+ QRectF m_rect;
+ QPen m_linePen;
+ QPen m_pointPen;
+ bool m_pointsVisible;
+ QVector<QPointF> m_controlPoints;
+ QVector<QPointF> m_visiblePoints;
+ SplineAnimation *m_animation;
+
+ bool m_pointLabelsVisible;
+ QString m_pointLabelsFormat;
+ QFont m_pointLabelsFont;
+ QColor m_pointLabelsColor;
+
+ friend class SplineAnimation;
+};
+
+QT_CHARTS_END_NAMESPACE
+
+#endif // SPLINECHARTITEM_P_H