candlestickdatareader.cpp
77 lines
| 2.4 KiB
| text/x-c
|
CppLexer
Alexander Mishin
|
r2896 | /**************************************************************************** | ||
** | ||||
** 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. | ||||
** | ||||
** $QT_END_LICENSE$ | ||||
** | ||||
****************************************************************************/ | ||||
#include "candlestickdatareader.h" | ||||
CandlestickDataReader::CandlestickDataReader(QIODevice *device) | ||||
: QTextStream(device) | ||||
{ | ||||
} | ||||
CandlestickDataReader::~CandlestickDataReader() | ||||
{ | ||||
} | ||||
void CandlestickDataReader::readFile(QIODevice *device) | ||||
{ | ||||
QTextStream::setDevice(device); | ||||
} | ||||
QCandlestickSet *CandlestickDataReader::readCandlestickSet() | ||||
{ | ||||
//! [1] | ||||
QString line = readLine(); | ||||
if (line.startsWith("#") || line.isEmpty()) | ||||
return 0; | ||||
//! [1] | ||||
//! [2] | ||||
QStringList strList = line.split(" ", QString::SkipEmptyParts); | ||||
if (strList.count() != 5) | ||||
return 0; | ||||
//! [2] | ||||
//! [3] | ||||
const qreal timestamp = strList.at(0).toDouble(); | ||||
const qreal open = strList.at(1).toDouble(); | ||||
const qreal high = strList.at(2).toDouble(); | ||||
const qreal low = strList.at(3).toDouble(); | ||||
const qreal close = strList.at(4).toDouble(); | ||||
//! [3] | ||||
//! [4] | ||||
QCandlestickSet *candlestickSet = new QCandlestickSet(timestamp); | ||||
candlestickSet->setOpen(open); | ||||
candlestickSet->setHigh(high); | ||||
candlestickSet->setLow(low); | ||||
candlestickSet->setClose(close); | ||||
//! [4] | ||||
return candlestickSet; | ||||
} | ||||