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// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#ifndef QLEGEND_H
#define QLEGEND_H
#include <QtCharts/QChartGlobal>
#include <QtWidgets/QGraphicsWidget>
#include <QtGui/QPen>
#include <QtGui/QBrush>
QT_BEGIN_NAMESPACE
class QChart;
class QLegendPrivate;
class QLegendMarker;
class QAbstractSeries;
class Q_CHARTS_EXPORT QLegend : public QGraphicsWidget
{
Q_OBJECT
Q_PROPERTY(Qt::Alignment alignment READ alignment WRITE setAlignment)
Q_PROPERTY(bool backgroundVisible READ isBackgroundVisible WRITE setBackgroundVisible NOTIFY backgroundVisibleChanged)
Q_PROPERTY(QColor color READ color WRITE setColor NOTIFY colorChanged)
Q_PROPERTY(QColor borderColor READ borderColor WRITE setBorderColor NOTIFY borderColorChanged)
Q_PROPERTY(QFont font READ font WRITE setFont NOTIFY fontChanged)
Q_PROPERTY(QColor labelColor READ labelColor WRITE setLabelColor NOTIFY labelColorChanged)
Q_PROPERTY(bool reverseMarkers READ reverseMarkers WRITE setReverseMarkers NOTIFY reverseMarkersChanged)
Q_PROPERTY(bool showToolTips READ showToolTips WRITE setShowToolTips NOTIFY showToolTipsChanged)
Q_PROPERTY(MarkerShape markerShape READ markerShape WRITE setMarkerShape NOTIFY markerShapeChanged)
private:
explicit QLegend(QChart *chart);
public:
enum MarkerShape {
MarkerShapeDefault,
MarkerShapeRectangle,
MarkerShapeCircle,
MarkerShapeFromSeries,
MarkerShapeRotatedRectangle,
MarkerShapeTriangle,
MarkerShapeStar,
MarkerShapePentagon
};
Q_ENUMS(MarkerShape)
~QLegend();
void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = nullptr) override;
void setBrush(const QBrush &brush);
QBrush brush() const;
void setColor(QColor color);
QColor color();
void setPen(const QPen &pen);
QPen pen() const;
void setBorderColor(QColor color);
QColor borderColor();
void setFont(const QFont &font);
QFont font() const;
void setLabelBrush(const QBrush &brush);
QBrush labelBrush() const;
void setLabelColor(QColor color);
QColor labelColor() const;
void setAlignment(Qt::Alignment alignment);
Qt::Alignment alignment() const;
void detachFromChart();
void attachToChart();
bool isAttachedToChart();
void setBackgroundVisible(bool visible = true);
bool isBackgroundVisible() const;
QList <QLegendMarker*> markers(QAbstractSeries *series = nullptr) const;
bool reverseMarkers();
void setReverseMarkers(bool reverseMarkers = true);
bool showToolTips() const;
void setShowToolTips(bool show);
bool isInteractive() const;
void setInteractive(bool interactive);
MarkerShape markerShape() const;
void setMarkerShape(MarkerShape shape);
protected:
void hideEvent(QHideEvent *event) override;
void showEvent(QShowEvent *event) override;
Q_SIGNALS:
void backgroundVisibleChanged(bool visible);
void colorChanged(QColor color);
void borderColorChanged(QColor color);
void fontChanged(QFont font);
void labelColorChanged(QColor color);
void reverseMarkersChanged(bool reverseMarkers);
void showToolTipsChanged(bool showToolTips);
void markerShapeChanged(MarkerShape shape);
Q_REVISION(6, 2) void attachedToChartChanged(bool attachedToChart);
void interactiveChanged(bool interactive);
private:
QScopedPointer<QLegendPrivate> d_ptr;
Q_DISABLE_COPY(QLegend)
friend class LegendScroller;
friend class LegendLayout;
friend class LegendMoveResizeHandler;
friend class ChartLayout;
friend class LegendMarkerItem;
friend class QLegendMarkerPrivate;
};
QT_END_NAMESPACE
#endif // QLEGEND_H
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