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// Copyright (C) 2023 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#ifndef POINTRENDERER_H
#define POINTRENDERER_H
//
// W A R N I N G
// -------------
//
// This file is not part of the QtGraphs 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.
#include <QQuickItem>
#include <QtGraphs/qabstractseries.h>
#include <QtQuick/private/qsgdefaultinternalrectanglenode_p.h>
#include <QtQuickShapes/private/qquickshape_p.h>
#include <QPainterPath>
QT_BEGIN_NAMESPACE
class QGraphsView;
class QXYSeries;
class QLineSeries;
class QScatterSeries;
class QSplineSeries;
class AxisRenderer;
class QQuickTapHandler;
class QQuickDragHandler;
struct QLegendData;
class PointRenderer : public QQuickItem
{
Q_OBJECT
public:
PointRenderer(QGraphsView *graph, bool clipPlotArea);
~PointRenderer() override;
void resetShapePathCount();
void handlePolish(QXYSeries *series);
void afterPolish(QList<QAbstractSeries *> &cleanupSeries);
void updateSeries(QXYSeries *series);
void afterUpdate(QList<QAbstractSeries *> &cleanupSeries);
bool handleHoverMove(QHoverEvent *event);
QPointF reverseRenderCoordinates(QAbstractSeries *series, qreal x, qreal y);
private:
struct PointGroup
{
QXYSeries *series = nullptr;
QQuickShapePath *shapePath = nullptr;
QPainterPath painterPath;
QList<QQuickItem *> markers;
QList<QQuickDragHandler *> dragHandlers;
QQmlComponent *currentMarker = nullptr;
QQmlComponent *previousMarker = nullptr;
QList<QRectF> rects;
qsizetype colorIndex = -1;
bool hover = false;
};
QQmlComponent *m_tempMarker = nullptr;
QGraphsView *m_graph = nullptr;
QQuickShape m_shape;
QMap<QXYSeries *, PointGroup *> m_groups;
qsizetype m_currentShapePathIndex = 0;
// Point drag variables
QPoint m_previousDelta;
PointGroup *m_pressedGroup = nullptr;
qsizetype m_pressedPointIndex = 0;
// Render area variables
qreal m_maxVertical = 0;
qreal m_maxHorizontal = 0;
qreal m_verticalOffset = 0;
qreal m_horizontalOffset = 0;
qreal m_areaWidth = 0;
qreal m_areaHeight = 0;
QQuickTapHandler *m_tapHandler = nullptr;
qreal defaultSize(QXYSeries *series = nullptr);
struct SeriesStyle {
QColor color;
QColor selectedColor;
QColor borderColor;
qreal borderWidth;
};
SeriesStyle getSeriesStyle(PointGroup *group);
void calculateRenderCoordinates(AxisRenderer *axisRenderer,
QAbstractSeries *series,
qreal origX,
qreal origY,
qreal *renderX,
qreal *renderY);
void reverseRenderCoordinates(AxisRenderer *axisRenderer,
QAbstractSeries *series,
qreal renderX,
qreal renderY,
qreal *origX,
qreal *origY);
void updatePointDelegate(
QXYSeries *series, PointGroup *group, qsizetype pointIndex, qreal x, qreal y);
void hidePointDelegates(QXYSeries *series);
void updateLegendData(QXYSeries *series, QLegendData &legendData);
void onSingleTapped(QEventPoint eventPoint, Qt::MouseButton button);
void onDoubleTapped(QEventPoint eventPoint, Qt::MouseButton button);
void onPressedChanged();
#ifdef USE_SCATTERGRAPH
void updateScatterSeries(QScatterSeries *scatter, QLegendData &legendData);
#endif
#ifdef USE_LINEGRAPH
void updateLineSeries(QLineSeries *line, QLegendData &legendData);
#endif
#ifdef USE_SPLINEGRAPH
void updateSplineSeries(QSplineSeries *spline, QLegendData &legendData);
#endif
};
QT_END_NAMESPACE
#endif // POINTRENDERER_H
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