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3** Copyright (C) 2016 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
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6** This file is part of the Qt Charts module of the Qt Toolkit.
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29
30#ifndef CHARTVIEW_H
31#define CHARTVIEW_H
32
33#include <QtCharts/QChartView>
34#include <QtWidgets/QRubberBand>
35
36QT_CHARTS_USE_NAMESPACE
37
38//![1]
39class ChartView : public QChartView
40//![1]
41{
42public:
43 ChartView(QChart *chart, QWidget *parent = 0);
44
45//![2]
46protected:
47 bool viewportEvent(QEvent *event);
48 void mousePressEvent(QMouseEvent *event);
49 void mouseMoveEvent(QMouseEvent *event);
50 void mouseReleaseEvent(QMouseEvent *event);
51 void keyPressEvent(QKeyEvent *event);
52//![2]
53
54private:
55 bool m_isTouching;
56};
57
58#endif
59

source code of qtcharts/examples/charts/zoomlinechart/chartview.h