qtdeclarative/examples/quick/demos/stocqt/content/StockListView.qml

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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
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** 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.
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** contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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****************************************************************************/
import QtQuick 2.0
import "."
Rectangle {
id: root
width: 320
height: 410
anchors.top: parent.top
anchors.bottom: parent.bottom
color: "white"
property string currentStockId: ""
property string currentStockName: ""
ListView {
id: view
anchors.fill: parent
width: parent.width
clip: true
keyNavigationWraps: true
highlightMoveDuration: 0
focus: true
snapMode: ListView.SnapToItem
model: StockListModel{}
function requestUrl(stockId) {
var endDate = new Date(""); //today
var startDate = new Date()
startDate.setDate(startDate.getDate() - 5);
var request = "http://ichart.finance.yahoo.com/table.csv?";
request += "s=" + stockId;
request += "&g=d";
request += "&a=" + startDate.getMonth();
request += "&b=" + startDate.getDate();
request += "&c=" + startDate.getFullYear();
request += "&d=" + endDate.getMonth();
request += "&e=" + endDate.getDate();
request += "&f=" + endDate.getFullYear();
request += "&g=d";
request += "&ignore=.csv";
return request;
}
function getCloseValue(index) {
var req = requestUrl(model.get(index).stockId);
if (!req)
return;
var xhr = new XMLHttpRequest;
xhr.open("GET", req, true);
xhr.onreadystatechange = function() {
if (xhr.readyState === XMLHttpRequest.LOADING || xhr.readyState === XMLHttpRequest.DONE) {
var records = xhr.responseText.split('\n');
if (records.length > 0) {
var r = records[1].split(',');
var today = parseFloat(r[4]);
model.setProperty(index, "value", today.toFixed(2));
r = records[2].split(',');
var yesterday = parseFloat(r[4]);
var change = today - yesterday;
if (change >= 0.0)
model.setProperty(index, "change", "+" + change.toFixed(2));
else
model.setProperty(index, "change", change.toFixed(2));
var changePercentage = (change / yesterday) * 100.0;
if (changePercentage >= 0.0)
model.setProperty(index, "changePercentage", "+" + changePercentage.toFixed(2) + "%");
else
model.setProperty(index, "changePercentage", changePercentage.toFixed(2) + "%");
}
}
}
xhr.send()
}
onCurrentIndexChanged: {
mainRect.listViewActive = 0;
root.currentStockId = model.get(currentIndex).stockId;
root.currentStockName = model.get(currentIndex).name;
}
delegate: Rectangle {
height: 102
width: parent.width
color: "transparent"
MouseArea {
anchors.fill: parent;
onClicked: {
view.currentIndex = index;
}
}
Text {
id: stockIdText
anchors.top: parent.top
anchors.topMargin: 15
anchors.left: parent.left
anchors.leftMargin: 15
width: 125
height: 40
color: "#000000"
font.family: Settings.fontFamily
font.pointSize: 20
font.weight: Font.Bold
verticalAlignment: Text.AlignVCenter
text: stockId
}
Text {
id: stockValueText
anchors.top: parent.top
anchors.topMargin: 15
anchors.right: parent.right
anchors.rightMargin: 0.31 * parent.width
width: 190
height: 40
color: "#000000"
font.family: Settings.fontFamily
font.pointSize: 20
font.bold: true
horizontalAlignment: Text.AlignRight
verticalAlignment: Text.AlignVCenter
text: value
Component.onCompleted: view.getCloseValue(index);
}
Text {
id: stockValueChangeText
anchors.top: parent.top
anchors.topMargin: 15
anchors.right: parent.right
anchors.rightMargin: 20
width: 135
height: 40
color: "#328930"
font.family: Settings.fontFamily
font.pointSize: 20
font.bold: true
horizontalAlignment: Text.AlignRight
verticalAlignment: Text.AlignVCenter
text: change
onTextChanged: {
if (parseFloat(text) >= 0.0)
color = "#328930";
else
color = "#d40000";
}
}
Text {
id: stockNameText
anchors.top: stockIdText.bottom
anchors.left: parent.left
anchors.leftMargin: 15
width: 330
height: 30
color: "#000000"
font.family: Settings.fontFamily
font.pointSize: 16
font.bold: false
elide: Text.ElideRight
maximumLineCount: 1
verticalAlignment: Text.AlignVCenter
text: name
}
Text {
id: stockValueChangePercentageText
anchors.top: stockIdText.bottom
anchors.right: parent.right
anchors.rightMargin: 20
width: 120
height: 30
color: "#328930"
font.family: Settings.fontFamily
font.pointSize: 18
font.bold: false
horizontalAlignment: Text.AlignRight
verticalAlignment: Text.AlignVCenter
text: changePercentage
onTextChanged: {
if (parseFloat(text) >= 0.0)
color = "#328930";
else
color = "#d40000";
}
}
Rectangle {
id: endingLine
anchors.bottom: parent.bottom
anchors.left: parent.left
height: 1
width: parent.width
color: "#d7d7d7"
}
}
highlight: Rectangle {
width: parent.width
color: "#eeeeee"
}
}
}