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/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the Qt Charts module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:GPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 or (at your option) any later version
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** approved by the KDE Free Qt Foundation. The licenses are as published by
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** the Free Software Foundation and appearing in the file LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QLEGEND_H
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#define QLEGEND_H
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#include <QtCharts/QChartGlobal>
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#include <QtWidgets/QGraphicsWidget>
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#include <QtGui/QPen>
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#include <QtGui/QBrush>
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QT_CHARTS_BEGIN_NAMESPACE
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class QChart;
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class QLegendPrivate;
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class QLegendMarker;
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class QAbstractSeries;
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class QT_CHARTS_EXPORT QLegend : public QGraphicsWidget
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{
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Q_OBJECT
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Q_PROPERTY(Qt::Alignment alignment READ alignment WRITE setAlignment)
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Q_PROPERTY(bool backgroundVisible READ isBackgroundVisible WRITE setBackgroundVisible NOTIFY backgroundVisibleChanged)
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Q_PROPERTY(QColor color READ color WRITE setColor NOTIFY colorChanged)
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Q_PROPERTY(QColor borderColor READ borderColor WRITE setBorderColor NOTIFY borderColorChanged)
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Q_PROPERTY(QFont font READ font WRITE setFont NOTIFY fontChanged)
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Q_PROPERTY(QColor labelColor READ labelColor WRITE setLabelColor NOTIFY labelColorChanged)
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Q_PROPERTY(bool reverseMarkers READ reverseMarkers WRITE setReverseMarkers NOTIFY reverseMarkersChanged)
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private:
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explicit QLegend(QChart *chart);
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public:
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~QLegend();
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void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
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void setBrush(const QBrush &brush);
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QBrush brush() const;
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void setColor(QColor color);
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QColor color();
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void setPen(const QPen &pen);
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QPen pen() const;
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void setBorderColor(QColor color);
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QColor borderColor();
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void setFont(const QFont &font);
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QFont font() const;
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void setLabelBrush(const QBrush &brush);
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QBrush labelBrush() const;
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void setLabelColor(QColor color);
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QColor labelColor() const;
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void setAlignment(Qt::Alignment alignment);
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Qt::Alignment alignment() const;
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void detachFromChart();
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void attachToChart();
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bool isAttachedToChart();
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void setBackgroundVisible(bool visible = true);
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bool isBackgroundVisible() const;
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QList <QLegendMarker*> markers(QAbstractSeries *series = 0) const;
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bool reverseMarkers();
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void setReverseMarkers(bool reverseMarkers = true);
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protected:
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void hideEvent(QHideEvent *event);
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void showEvent(QShowEvent *event);
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Q_SIGNALS:
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void backgroundVisibleChanged(bool visible);
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void colorChanged(QColor color);
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void borderColorChanged(QColor color);
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void fontChanged(QFont font);
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void labelColorChanged(QColor color);
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void reverseMarkersChanged(bool reverseMarkers);
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private:
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QScopedPointer<QLegendPrivate> d_ptr;
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Q_DISABLE_COPY(QLegend)
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friend class LegendScroller;
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friend class LegendLayout;
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friend class ChartLayout;
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friend class LegendMarkerItem;
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friend class QLegendMarkerPrivate;
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};
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QT_CHARTS_END_NAMESPACE
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#endif // QLEGEND_H
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