linechartitem_p.h - mozsearch

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// Copyright (C) 2021 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only

//  W A R N I N G

//  -------------

//

// This file is not part of the Qt 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 LINECHARTITEM_H

#define LINECHARTITEM_H

#include <QtCharts/QChartGlobal>

#include <private/xychart_p.h>

#include <QtCharts/QChart>

#include <QtGui/QPen>

#include <QtCharts/private/qchartglobal_p.h>

QT_BEGIN_NAMESPACE

class QLineSeries;

class ChartPresenter;

class Q_CHARTS_EXPORT LineChartItem :  public XYChart

    Q_OBJECT

    Q_INTERFACES(QGraphicsItem)

public:

    explicit LineChartItem(QLineSeries *series, QGraphicsItem *item = 0);

    ~LineChartItem() {}

    //from QGraphicsItem

    QRectF boundingRect() const override;

    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) override;

    QPainterPath shape() const override;

    QPainterPath path() const { return m_fullPath; }

public Q_SLOTS:

    void handleSeriesUpdated() override;

protected:

    void updateGeometry() override;

    void mousePressEvent(QGraphicsSceneMouseEvent *event) override;

    void hoverEnterEvent(QGraphicsSceneHoverEvent *event) override;

    void hoverMoveEvent(QGraphicsSceneHoverEvent *event) override;

    void hoverLeaveEvent(QGraphicsSceneHoverEvent *event) override;

    void mouseReleaseEvent(QGraphicsSceneMouseEvent *event) override;

    void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event) override;

    void suppressPoints() { m_pointsVisible = false; }

    void forceChartType(QChart::ChartType chartType) { m_chartType = chartType; }

private:

    QLineSeries *m_series;

    QPainterPath m_linePath;

    QPainterPath m_linePathPolarRight;

    QPainterPath m_linePathPolarLeft;

    QPainterPath m_fullPath;

    QPainterPath m_shapePath;

    QList<QPointF> m_linePoints;

    QRectF m_rect;

    QPen m_linePen;

    bool m_pointsVisible;

    QChart::ChartType m_chartType;

    bool m_pointLabelsVisible;

    qreal m_markerSize;

    QString m_pointLabelsFormat;

    QFont m_pointLabelsFont;

    QColor m_pointLabelsColor;

    bool m_pointLabelsClipping;

    QPointF m_lastMousePos;

    QPointF m_lastHoveredMatchedPos;

    bool m_mousePressed;

};

QT_END_NAMESPACE

#endif