xyseriesiodevice.h 范例文件

audio/xyseriesiodevice.h
/**************************************************************************** ** ** 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 XYSERIESIODEVICE_H #define XYSERIESIODEVICE_H #include <QtCore/QIODevice> #include <QtCharts/QChartGlobal> QT_CHARTS_BEGIN_NAMESPACE class QXYSeries; QT_CHARTS_END_NAMESPACE QT_CHARTS_USE_NAMESPACE class XYSeriesIODevice : public QIODevice { Q_OBJECT public: explicit XYSeriesIODevice(QXYSeries * series, QObject *parent = 0); protected: qint64 readData(char * data, qint64 maxSize); qint64 writeData(const char * data, qint64 maxSize); private: QXYSeries *m_series; }; #endif // XYSERIESIODEVICE_H