| /**************************************************************************** |
| ** |
| ** 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; |
| QT_CHARTS_END_NAMESPACE |
| |
| QT_CHARTS_USE_NAMESPACE |
| |
| class Callout : public QGraphicsItem |
| { |
| public: |
| Callout(QChart *parent); |
| |
| void setText(const QString &text); |
| void setAnchor(QPointF point); |
| void updateGeometry(); |
| |
| QRectF boundingRect() const; |
| void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,QWidget *widget); |
| |
| 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; |
| }; |
| |
| #endif // CALLOUT_H |