| 1 | // Copyright (C) 2021 The Qt Company Ltd. |
|---|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only |
| 3 | |
| 4 | // W A R N I N G |
| 5 | // ------------- |
| 6 | // |
| 7 | // This file is not part of the Qt Chart API. It exists purely as an |
| 8 | // implementation detail. This header file may change from version to |
| 9 | // version without notice, or even be removed. |
| 10 | // |
| 11 | // We mean it. |
| 12 | |
| 13 | #ifndef SPLINECHARTITEM_P_H |
| 14 | #define SPLINECHARTITEM_P_H |
| 15 | |
| 16 | #include <QtCharts/QSplineSeries> |
| 17 | #include <private/xychart_p.h> |
| 18 | #include <QtCharts/private/qchartglobal_p.h> |
| 19 | |
| 20 | QT_BEGIN_NAMESPACE |
| 21 | |
| 22 | class SplineAnimation; |
| 23 | |
| 24 | class Q_CHARTS_PRIVATE_EXPORT SplineChartItem : public XYChart |
| 25 | { |
| 26 | Q_OBJECT |
| 27 | Q_INTERFACES(QGraphicsItem) |
| 28 | public: |
| 29 | SplineChartItem(QSplineSeries *series, QGraphicsItem *item = 0); |
| 30 | |
| 31 | //from QGraphicsItem |
| 32 | QRectF boundingRect() const override; |
| 33 | void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) override; |
| 34 | QPainterPath shape() const override; |
| 35 | |
| 36 | void setControlGeometryPoints(const QList<QPointF> &points); |
| 37 | QList<QPointF> controlGeometryPoints() const; |
| 38 | |
| 39 | void setAnimation(SplineAnimation *animation); |
| 40 | ChartAnimation *animation() const override; |
| 41 | |
| 42 | public Q_SLOTS: |
| 43 | void handleSeriesUpdated() override; |
| 44 | |
| 45 | protected: |
| 46 | void updateGeometry() override; |
| 47 | QList<QPointF> calculateControlPoints(const QList<QPointF> &points); |
| 48 | QList<qreal> firstControlPoints(const QList<qreal> &list); |
| 49 | void updateChart(const QList<QPointF> &oldPoints, const QList<QPointF> &newPoints, int index) override; |
| 50 | void mousePressEvent(QGraphicsSceneMouseEvent *event) override; |
| 51 | void hoverEnterEvent(QGraphicsSceneHoverEvent *event) override; |
| 52 | void hoverLeaveEvent(QGraphicsSceneHoverEvent *event) override; |
| 53 | void mouseReleaseEvent(QGraphicsSceneMouseEvent *event) override; |
| 54 | void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event) override; |
| 55 | |
| 56 | private: |
| 57 | QSplineSeries *m_series; |
| 58 | QPainterPath m_path; |
| 59 | QPainterPath m_pathPolarRight; |
| 60 | QPainterPath m_pathPolarLeft; |
| 61 | QPainterPath m_fullPath; |
| 62 | QRectF m_rect; |
| 63 | QPen m_linePen; |
| 64 | QPen m_pointPen; |
| 65 | bool m_pointsVisible; |
| 66 | QList<QPointF> m_controlPoints; |
| 67 | QList<QPointF> m_visiblePoints; |
| 68 | SplineAnimation *m_animation; |
| 69 | |
| 70 | bool m_pointLabelsVisible; |
| 71 | qreal m_markerSize; |
| 72 | QString m_pointLabelsFormat; |
| 73 | QFont m_pointLabelsFont; |
| 74 | QColor m_pointLabelsColor; |
| 75 | bool m_pointLabelsClipping; |
| 76 | |
| 77 | QPointF m_lastMousePos; |
| 78 | bool m_mousePressed; |
| 79 | |
| 80 | friend class SplineAnimation; |
| 81 | }; |
| 82 | |
| 83 | QT_END_NAMESPACE |
| 84 | |
| 85 | #endif // SPLINECHARTITEM_P_H |
| 86 |