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Diffstat (limited to 'examples/quick/demos/stocqt/content/StockModel.qml')
| -rw-r--r-- | examples/quick/demos/stocqt/content/StockModel.qml | 148 |
1 files changed, 0 insertions, 148 deletions
diff --git a/examples/quick/demos/stocqt/content/StockModel.qml b/examples/quick/demos/stocqt/content/StockModel.qml deleted file mode 100644 index 9e3a815c11..0000000000 --- a/examples/quick/demos/stocqt/content/StockModel.qml +++ /dev/null @@ -1,148 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2017 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** 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. -** -** BSD License Usage -** Alternatively, you may use this file under the terms of the BSD license -** as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of The Qt Company Ltd nor the names of its -** contributors may be used to endorse or promote products derived -** from this software without specific prior written permission. -** -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -import QtQuick 2.0 - -ListModel { - id: model - property string stockId: "" - property string stockName: "" - property var newest - property var oldest - property bool ready: false - property real stockPrice: 0.0 - property real stockPriceChanged: 0.0 - - signal dataReady - - function indexOf(date) { - if (model.count == 0) - return -1; - - if (newest <= date) - date = new Date(newest.getYear(), - newest.getMonth(), - newest.getDate() - 7); - - if (oldest >= date) - return model.count - 1; - - var currDiff = 0; - var bestDiff = Math.abs(date.getTime() - newest.getTime()); - var retval = 0; - for (var i = 0; i < model.count; i++) { - var d = new Date(model.get(i).date); - currDiff = Math.abs(d.getTime() - date.getTime()); - if (currDiff < bestDiff) { - bestDiff = currDiff; - retval = i + 1; - } - if (currDiff > bestDiff) - return retval; - } - return -1; - } - - function createStockPrice(r) { - return { - "date": r[0], - "open":r[1], - "high":r[2], - "low":r[3], - "close":r[4], - "volume":r[5], - }; - } - - function updateStock() { - if (stockId === "") - return; - - var startDate = new Date(2011, 4, 25); - var endDate = new Date(); //today - - var req = "data/" + stockId + ".csv" - if (!req) - return; - - var xhr = new XMLHttpRequest; - - xhr.open("GET", req, true); - - model.ready = false; - model.clear(); - var i = 1; //skip the first line - xhr.onreadystatechange = function() { - if (xhr.readyState === XMLHttpRequest.LOADING || xhr.readyState === XMLHttpRequest.DONE) { - var records = xhr.responseText.split('\n'); - for (;i < records.length; i++ ) { - var r = records[i].split(','); - if (r.length >= 6) - model.append(createStockPrice(r)); - } - - if (xhr.readyState === XMLHttpRequest.DONE) { - if (model.count > 0) { - model.ready = true; - model.stockPrice = model.get(0).close; - model.stockPriceChanged = model.count > 1 ? (Math.round((model.stockPrice - model.get(1).close) * 100) / 100) : 0; - newest = new Date(model.get(0).date); - oldest = new Date(model.get(model.count - 1).date); - } else { - model.stockPrice = 0; - model.stockPriceChanged = 0; - } - model.dataReady(); // emit signal - model.ready indicates whether the data is valid - } - } - } - xhr.send() - } -} |