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/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Charts module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
****************************************************************************/
// 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_CHARTS_BEGIN_NAMESPACE
class QLineSeries;
class ChartPresenter;
class Q_CHARTS_PRIVATE_EXPORT LineChartItem : public XYChart
{
Q_OBJECT
Q_INTERFACES(QGraphicsItem)
public:
explicit LineChartItem(QLineSeries *series, QGraphicsItem *item = 0);
~LineChartItem() {}
//from QGraphicsItem
QRectF boundingRect() const;
void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
QPainterPath shape() const;
QPainterPath path() const { return m_fullPath; }
public Q_SLOTS:
void handleUpdated();
protected:
void updateGeometry();
void mousePressEvent(QGraphicsSceneMouseEvent *event);
void hoverEnterEvent(QGraphicsSceneHoverEvent *event);
void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event);
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;
QVector<QPointF> m_linePoints;
QRectF m_rect;
QPen m_linePen;
bool m_pointsVisible;
QChart::ChartType m_chartType;
bool m_pointLabelsVisible;
QString m_pointLabelsFormat;
QFont m_pointLabelsFont;
QColor m_pointLabelsColor;
bool m_pointLabelsClipping;
QPointF m_lastMousePos;
bool m_mousePressed;
};
QT_CHARTS_END_NAMESPACE
#endif
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