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Diffstat (limited to 'src/charts/splinechart/splinechartitem_p.h')
-rw-r--r-- | src/charts/splinechart/splinechartitem_p.h | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/src/charts/splinechart/splinechartitem_p.h b/src/charts/splinechart/splinechartitem_p.h new file mode 100644 index 00000000..ac323e59 --- /dev/null +++ b/src/charts/splinechart/splinechartitem_p.h @@ -0,0 +1,94 @@ +/**************************************************************************** +** +** 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 |