1/****************************************************************************
2**
3** Copyright (C) 2016 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the Qt Charts module of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:GPL$
9** Commercial License Usage
10** Licensees holding valid commercial Qt licenses may use this file in
11** accordance with the commercial license agreement provided with the
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17** GNU General Public License Usage
18** Alternatively, this file may be used under the terms of the GNU
19** General Public License version 3 or (at your option) any later version
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21** the Free Software Foundation and appearing in the file LICENSE.GPL3
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28****************************************************************************/
29
30#include "chartview.h"
31#include <QtGui/QMouseEvent>
32
33QT_CHARTS_USE_NAMESPACE
34
35ChartView::ChartView(QWidget *parent) :
36 QChartView(parent)
37{
38}
39
40void ChartView::keyPressEvent(QKeyEvent *event)
41{
42 switch (event->key()) {
43 case Qt::Key_Plus:
44 chart()->zoomIn();
45 break;
46 case Qt::Key_Minus:
47 chart()->zoomOut();
48 break;
49 case Qt::Key_Left:
50 chart()->scroll(dx: -1.0, dy: 0);
51 break;
52 case Qt::Key_Right:
53 chart()->scroll(dx: 1.0, dy: 0);
54 break;
55 case Qt::Key_Up:
56 chart()->scroll(dx: 0, dy: 1.0);
57 break;
58 case Qt::Key_Down:
59 chart()->scroll(dx: 0, dy: -1.0);
60 break;
61 default:
62 QGraphicsView::keyPressEvent(event);
63 break;
64 }
65}
66

source code of qtcharts/tests/manual/openglseriestest/chartview.cpp