73 lines
2.2 KiB
C
73 lines
2.2 KiB
C
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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 CALLOUT_H
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#define CALLOUT_H
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#include <QtCharts/QChartGlobal>
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#include <QtWidgets/QGraphicsItem>
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#include <QtGui/QFont>
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QT_BEGIN_NAMESPACE
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class QGraphicsSceneMouseEvent;
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QT_END_NAMESPACE
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QT_CHARTS_BEGIN_NAMESPACE
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class QChart;
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QT_CHARTS_END_NAMESPACE
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QT_CHARTS_USE_NAMESPACE
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class ChartCallout : public QGraphicsItem
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{
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public:
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ChartCallout(QChart *parent);
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void setText(const QString &text);
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void setAnchor(QPointF point);
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void updateGeometry();
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QRectF boundingRect() const;
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void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,QWidget *widget);
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protected:
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void mousePressEvent(QGraphicsSceneMouseEvent *event);
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void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
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private:
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QString m_text;
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QRectF m_textRect;
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QRectF m_rect;
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QPointF m_anchor;
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QFont m_font;
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QChart *m_chart;
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};
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#endif // CALLOUT_H
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