--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/callout.h Tue Jul 26 11:15:37 2022 +0200
@@ -0,0 +1,76 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the Qt Charts module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:GPL$
+** 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.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 or (at your option) any later version
+** approved by the KDE Free Qt Foundation. The licenses are as published by
+** the Free Software Foundation and appearing in the file LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef CALLOUT_H
+#define CALLOUT_H
+
+#include <QtCharts/QChartGlobal>
+#include <QtWidgets/QGraphicsItem>
+#include <QtGui/QFont>
+
+QT_BEGIN_NAMESPACE
+class QGraphicsSceneMouseEvent;
+QT_END_NAMESPACE
+
+QT_CHARTS_BEGIN_NAMESPACE
+class QChart;
+class QAbstractSeries;
+QT_CHARTS_END_NAMESPACE
+
+QT_CHARTS_USE_NAMESPACE
+
+class Callout : public QGraphicsItem
+{
+public:
+ Callout(QChart *parent, QAbstractSeries *series);
+
+ void setText(const QString &text);
+ void setAnchor(QPointF point);
+ void updateGeometry();
+
+ QRectF boundingRect() const;
+ void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,QWidget *widget);
+ void setSeries(QAbstractSeries *series);
+
+protected:
+ void mousePressEvent(QGraphicsSceneMouseEvent *event);
+ void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
+
+private:
+ QString m_text;
+ QRectF m_textRect;
+ QRectF m_rect;
+ QPointF m_anchor;
+ QFont m_font;
+ QChart *m_chart;
+ QAbstractSeries *m_series;
+};
+
+#endif // CALLOUT_H
+