lili/qt4-x11
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
master
qt4-x11/doc/html/demos-embedded-flightinfo-flightinfo-cpp.html
lili 35a2a1d584 init
2025-08-24 20:55:26 +08:00

600 lines
48 KiB
HTML
Raw Permalink Blame History

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en_US" lang="en_US">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Qt 4.8: flightinfo.cpp Example File (demos/embedded/flightinfo/flightinfo.cpp)</title>
<link rel="stylesheet" type="text/css" href="style/style.css" />
<script src="scripts/jquery.js" type="text/javascript"></script>
<script src="scripts/functions.js" type="text/javascript"></script>
<link rel="stylesheet" type="text/css" href="style/superfish.css" />
<link rel="stylesheet" type="text/css" href="style/narrow.css" />
<!--[if IE]>
<meta name="MSSmartTagsPreventParsing" content="true">
<meta http-equiv="imagetoolbar" content="no">
<![endif]-->
<!--[if lt IE 7]>
<link rel="stylesheet" type="text/css" href="style/style_ie6.css">
<![endif]-->
<!--[if IE 7]>
<link rel="stylesheet" type="text/css" href="style/style_ie7.css">
<![endif]-->
<!--[if IE 8]>
<link rel="stylesheet" type="text/css" href="style/style_ie8.css">
<![endif]-->
<script src="scripts/superfish.js" type="text/javascript"></script>
<script src="scripts/narrow.js" type="text/javascript"></script>
</head>
<body class="" onload="CheckEmptyAndLoadList();">
<div class="header" id="qtdocheader">
<div class="content">
<div id="nav-logo">
<a href="index.html">Home</a></div>
<a href="index.html" class="qtref"><span>Qt Reference Documentation</span></a>
<div id="narrowsearch"></div>
<div id="nav-topright">
<ul>
<li class="nav-topright-home"><a href="http://qt.digia.com/">Qt HOME</a></li>
<li class="nav-topright-dev"><a href="http://qt-project.org/">DEV</a></li>
<li class="nav-topright-doc nav-topright-doc-active"><a href="http://qt-project.org/doc/">
DOC</a></li>
<li class="nav-topright-blog"><a href="http://blog.qt.digia.com/">BLOG</a></li>
</ul>
</div>
<div id="shortCut">
<ul>
<li class="shortCut-topleft-inactive"><span><a href="index.html">Qt 4.8</a></span></li>
<li class="shortCut-topleft-active"><a href="http://qt-project.org/doc/">ALL VERSIONS </a></li>
</ul>
</div>
<ul class="sf-menu" id="narrowmenu">
<li><a href="#">API Lookup</a>
<ul>
<li><a href="classes.html">Class index</a></li>
<li><a href="functions.html">Function index</a></li>
<li><a href="modules.html">Modules</a></li>
<li><a href="namespaces.html">Namespaces</a></li>
<li><a href="qtglobal.html">Global Declarations</a></li>
<li><a href="qdeclarativeelements.html">QML elements</a></li>
</ul>
</li>
<li><a href="#">Qt Topics</a>
<ul>
<li><a href="qt-basic-concepts.html">Programming with Qt</a></li>
<li><a href="qtquick.html">Device UIs &amp; Qt Quick</a></li>
<li><a href="qt-gui-concepts.html">UI Design with Qt</a></li>
<li><a href="supported-platforms.html">Supported Platforms</a></li>
<li><a href="technology-apis.html">Qt and Key Technologies</a></li>
<li><a href="best-practices.html">How-To's and Best Practices</a></li>
</ul>
</li>
<li><a href="#">Examples</a>
<ul>
<li><a href="all-examples.html">Examples</a></li>
<li><a href="tutorials.html">Tutorials</a></li>
<li><a href="demos.html">Demos</a></li>
<li><a href="qdeclarativeexamples.html">QML Examples</a></li>
</ul>
</li>
</ul>
</div>
</div>
<div class="wrapper">
<div class="hd">
<span></span>
</div>
<div class="bd group">
<div class="sidebar">
<div class="searchlabel">
Search index:</div>
<div class="search" id="sidebarsearch">
<form id="qtdocsearch" action="" onsubmit="return false;">
<fieldset>
<input type="text" name="searchstring" id="pageType" value="" />
<div id="resultdialog">
<a href="#" id="resultclose">Close</a>
<p id="resultlinks" class="all"><a href="#" id="showallresults">All</a> | <a href="#" id="showapiresults">API</a> | <a href="#" id="showarticleresults">Articles</a> | <a href="#" id="showexampleresults">Examples</a></p>
<p id="searchcount" class="all"><span id="resultcount"></span><span id="apicount"></span><span id="articlecount"></span><span id="examplecount"></span>&nbsp;results:</p>
<ul id="resultlist" class="all">
</ul>
</div>
</fieldset>
</form>
</div>
<div class="box first bottombar" id="lookup">
<h2 title="API Lookup"><span></span>
API Lookup</h2>
<div id="list001" class="list">
<ul id="ul001" >
<li class="defaultLink"><a href="classes.html">Class index</a></li>
<li class="defaultLink"><a href="functions.html">Function index</a></li>
<li class="defaultLink"><a href="modules.html">Modules</a></li>
<li class="defaultLink"><a href="namespaces.html">Namespaces</a></li>
<li class="defaultLink"><a href="qtglobal.html">Global Declarations</a></li>
<li class="defaultLink"><a href="qdeclarativeelements.html">QML elements</a></li>
</ul>
</div>
</div>
<div class="box bottombar" id="topics">
<h2 title="Qt Topics"><span></span>
Qt Topics</h2>
<div id="list002" class="list">
<ul id="ul002" >
<li class="defaultLink"><a href="qt-basic-concepts.html">Programming with Qt</a></li>
<li class="defaultLink"><a href="qtquick.html">Device UIs &amp; Qt Quick</a></li>
<li class="defaultLink"><a href="qt-gui-concepts.html">UI Design with Qt</a></li>
<li class="defaultLink"><a href="supported-platforms.html">Supported Platforms</a></li>
<li class="defaultLink"><a href="technology-apis.html">Qt and Key Technologies</a></li>
<li class="defaultLink"><a href="best-practices.html">How-To's and Best Practices</a></li>
</ul>
</div>
</div>
<div class="box" id="examples">
<h2 title="Examples"><span></span>
Examples</h2>
<div id="list003" class="list">
<ul id="ul003">
<li class="defaultLink"><a href="all-examples.html">Examples</a></li>
<li class="defaultLink"><a href="tutorials.html">Tutorials</a></li>
<li class="defaultLink"><a href="demos.html">Demos</a></li>
<li class="defaultLink"><a href="qdeclarativeexamples.html">QML Examples</a></li>
</ul>
</div>
</div>
</div>
<div class="wrap">
<div class="toolbar">
<div class="breadcrumb toolblock">
<ul>
<li class="first"><a href="index.html">Home</a></li>
<!-- Breadcrumbs go here -->
</ul>
</div>
<div class="toolbuttons toolblock">
<ul>
<li id="smallA" class="t_button">A</li>
<li id="medA" class="t_button active">A</li>
<li id="bigA" class="t_button">A</li>
<li id="print" class="t_button"><a href="javascript:this.print();">
<span>Print</span></a></li>
</ul>
</div>
</div>
<div class="content mainContent">
<h1 class="title">flightinfo.cpp Example File</h1>
<span class="small-subtitle">demos/embedded/flightinfo/flightinfo.cpp</span>
<!-- $$$demos/embedded/flightinfo/flightinfo.cpp-description -->
<div class="descr"> <a name="details"></a>
<pre class="cpp"> <span class="comment">/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the demonstration applications of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/</span>
<span class="preprocessor">#include &lt;QtCore&gt;</span>
<span class="preprocessor">#include &lt;QtGui&gt;</span>
<span class="preprocessor">#include &lt;QtNetwork&gt;</span>
<span class="preprocessor">#include &quot;ui_form.h&quot;</span>
<span class="preprocessor">#define FLIGHTVIEW_URL &quot;http://mobile.flightview.com/TrackByFlight.aspx&quot;</span>
<span class="preprocessor">#define FLIGHTVIEW_RANDOM &quot;http://mobile.flightview.com/TrackSampleFlight.aspx&quot;</span>
<span class="comment">// strips all invalid constructs that might trip QXmlStreamReader</span>
<span class="keyword">static</span> <span class="type"><a href="qstring.html">QString</a></span> sanitized(<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&amp;</span>xml)
{
<span class="type"><a href="qstring.html">QString</a></span> data <span class="operator">=</span> xml;
<span class="comment">// anything up to the html tag</span>
<span class="type">int</span> i <span class="operator">=</span> data<span class="operator">.</span>indexOf(<span class="string">&quot;&lt;html&quot;</span>);
<span class="keyword">if</span> (i <span class="operator">&gt;</span> <span class="number">0</span>)
data<span class="operator">.</span>remove(<span class="number">0</span><span class="operator">,</span> i <span class="operator">-</span> <span class="number">1</span>);
<span class="comment">// everything inside the head tag</span>
i <span class="operator">=</span> data<span class="operator">.</span>indexOf(<span class="string">&quot;&lt;head&quot;</span>);
<span class="keyword">if</span> (i <span class="operator">&gt;</span> <span class="number">0</span>)
data<span class="operator">.</span>remove(i<span class="operator">,</span> data<span class="operator">.</span>indexOf(<span class="string">&quot;&lt;/head&gt;&quot;</span>) <span class="operator">-</span> i <span class="operator">+</span> <span class="number">7</span>);
<span class="comment">// invalid link for JavaScript code</span>
<span class="keyword">while</span> (<span class="keyword">true</span>) {
i <span class="operator">=</span> data<span class="operator">.</span>indexOf(<span class="string">&quot;onclick=\&quot;gotoUrl(&quot;</span>);
<span class="keyword">if</span> (i <span class="operator">&lt;</span> <span class="number">0</span>)
<span class="keyword">break</span>;
data<span class="operator">.</span>remove(i<span class="operator">,</span> data<span class="operator">.</span>indexOf(<span class="char">'\&quot;'</span><span class="operator">,</span> i <span class="operator">+</span> <span class="number">9</span>) <span class="operator">-</span> i <span class="operator">+</span> <span class="number">1</span>);
}
<span class="comment">// all inline frames</span>
<span class="keyword">while</span> (<span class="keyword">true</span>) {
i <span class="operator">=</span> data<span class="operator">.</span>indexOf(<span class="string">&quot;&lt;iframe&quot;</span>);
<span class="keyword">if</span> (i <span class="operator">&lt;</span> <span class="number">0</span>)
<span class="keyword">break</span>;
data<span class="operator">.</span>remove(i<span class="operator">,</span> data<span class="operator">.</span>indexOf(<span class="string">&quot;&lt;/iframe&gt;&quot;</span>) <span class="operator">-</span> i <span class="operator">+</span> <span class="number">8</span>);
}
<span class="comment">// entities</span>
data<span class="operator">.</span>remove(<span class="string">&quot;&amp;nbsp;&quot;</span>);
data<span class="operator">.</span>remove(<span class="string">&quot;&amp;copy;&quot;</span>);
<span class="keyword">return</span> data;
}
<span class="keyword">class</span> FlightInfo : <span class="keyword">public</span> <span class="type"><a href="qmainwindow.html">QMainWindow</a></span>
{
Q_OBJECT
<span class="keyword">private</span>:
Ui_Form ui;
<span class="type"><a href="qurl.html">QUrl</a></span> m_url;
<span class="type"><a href="qdate.html">QDate</a></span> m_searchDate;
<span class="type"><a href="qpixmap.html">QPixmap</a></span> m_map;
<span class="type"><a href="qnetworkaccessmanager.html">QNetworkAccessManager</a></span> m_manager;
<span class="type"><a href="qlist.html">QList</a></span><span class="operator">&lt;</span><span class="type"><a href="qnetworkreply.html">QNetworkReply</a></span> <span class="operator">*</span><span class="operator">&gt;</span> mapReplies;
<span class="keyword">public</span>:
FlightInfo(<span class="type"><a href="qmainwindow.html">QMainWindow</a></span> <span class="operator">*</span>parent <span class="operator">=</span> <span class="number">0</span>): <span class="type"><a href="qmainwindow.html">QMainWindow</a></span>(parent) {
<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>w <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qwidget.html">QWidget</a></span>(<span class="keyword">this</span>);
ui<span class="operator">.</span>setupUi(w);
setCentralWidget(w);
ui<span class="operator">.</span>searchBar<span class="operator">-</span><span class="operator">&gt;</span>hide();
ui<span class="operator">.</span>infoBox<span class="operator">-</span><span class="operator">&gt;</span>hide();
connect(ui<span class="operator">.</span>searchButton<span class="operator">,</span> SIGNAL(clicked())<span class="operator">,</span> SLOT(startSearch()));
connect(ui<span class="operator">.</span>flightEdit<span class="operator">,</span> SIGNAL(returnPressed())<span class="operator">,</span> SLOT(startSearch()));
setWindowTitle(<span class="string">&quot;Flight Info&quot;</span>);
<span class="comment">// Rendered from the public-domain vectorized aircraft</span>
<span class="comment">// http://openclipart.org/media/people/Jarno</span>
m_map <span class="operator">=</span> <span class="type"><a href="qpixmap.html">QPixmap</a></span>(<span class="string">&quot;:/aircraft.png&quot;</span>);
<span class="type"><a href="qaction.html">QAction</a></span> <span class="operator">*</span>searchTodayAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(<span class="string">&quot;Today's Flight&quot;</span><span class="operator">,</span> <span class="keyword">this</span>);
<span class="type"><a href="qaction.html">QAction</a></span> <span class="operator">*</span>searchYesterdayAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(<span class="string">&quot;Yesterday's Flight&quot;</span><span class="operator">,</span> <span class="keyword">this</span>);
<span class="type"><a href="qaction.html">QAction</a></span> <span class="operator">*</span>randomAction <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(<span class="string">&quot;Random Flight&quot;</span><span class="operator">,</span> <span class="keyword">this</span>);
connect(searchTodayAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> SLOT(today()));
connect(searchYesterdayAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> SLOT(yesterday()));
connect(randomAction<span class="operator">,</span> SIGNAL(triggered())<span class="operator">,</span> SLOT(randomFlight()));
connect(<span class="operator">&amp;</span>m_manager<span class="operator">,</span> SIGNAL(finished(<span class="type"><a href="qnetworkreply.html">QNetworkReply</a></span><span class="operator">*</span>))<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> SLOT(handleNetworkData(<span class="type"><a href="qnetworkreply.html">QNetworkReply</a></span><span class="operator">*</span>)));
<span class="preprocessor">#if defined(Q_OS_SYMBIAN)</span>
menuBar()<span class="operator">-</span><span class="operator">&gt;</span>addAction(searchTodayAction);
menuBar()<span class="operator">-</span><span class="operator">&gt;</span>addAction(searchYesterdayAction);
menuBar()<span class="operator">-</span><span class="operator">&gt;</span>addAction(randomAction);
<span class="preprocessor">#else</span>
addAction(searchTodayAction);
addAction(searchYesterdayAction);
addAction(randomAction);
setContextMenuPolicy(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>ActionsContextMenu);
<span class="preprocessor">#endif</span>
}
<span class="keyword">private</span> <span class="keyword">slots</span>:
<span class="type">void</span> handleNetworkData(<span class="type"><a href="qnetworkreply.html">QNetworkReply</a></span> <span class="operator">*</span>networkReply) {
<span class="keyword">if</span> (<span class="operator">!</span>networkReply<span class="operator">-</span><span class="operator">&gt;</span>error()) {
<span class="keyword">if</span> (<span class="operator">!</span>mapReplies<span class="operator">.</span>contains(networkReply)) {
<span class="comment">// Assume UTF-8 encoded</span>
<span class="type"><a href="qbytearray.html">QByteArray</a></span> data <span class="operator">=</span> networkReply<span class="operator">-</span><span class="operator">&gt;</span>readAll();
<span class="type"><a href="qstring.html">QString</a></span> xml <span class="operator">=</span> <span class="type"><a href="qstring.html">QString</a></span><span class="operator">::</span>fromUtf8(data);
digest(xml);
} <span class="keyword">else</span> {
mapReplies<span class="operator">.</span>removeOne(networkReply);
m_map<span class="operator">.</span>loadFromData(networkReply<span class="operator">-</span><span class="operator">&gt;</span>readAll());
update();
}
}
networkReply<span class="operator">-</span><span class="operator">&gt;</span>deleteLater();
}
<span class="type">void</span> today() {
<span class="type"><a href="qdatetime.html">QDateTime</a></span> timestamp <span class="operator">=</span> <span class="type"><a href="qdatetime.html">QDateTime</a></span><span class="operator">::</span>currentDateTime();
m_searchDate <span class="operator">=</span> timestamp<span class="operator">.</span>date();
searchFlight();
}
<span class="type">void</span> yesterday() {
<span class="type"><a href="qdatetime.html">QDateTime</a></span> timestamp <span class="operator">=</span> <span class="type"><a href="qdatetime.html">QDateTime</a></span><span class="operator">::</span>currentDateTime();
timestamp <span class="operator">=</span> timestamp<span class="operator">.</span>addDays(<span class="operator">-</span><span class="number">1</span>);
m_searchDate <span class="operator">=</span> timestamp<span class="operator">.</span>date();
searchFlight();
}
<span class="type">void</span> searchFlight() {
ui<span class="operator">.</span>searchBar<span class="operator">-</span><span class="operator">&gt;</span>show();
ui<span class="operator">.</span>infoBox<span class="operator">-</span><span class="operator">&gt;</span>hide();
ui<span class="operator">.</span>flightStatus<span class="operator">-</span><span class="operator">&gt;</span>hide();
ui<span class="operator">.</span>flightName<span class="operator">-</span><span class="operator">&gt;</span>setText(<span class="string">&quot;Enter flight number&quot;</span>);
ui<span class="operator">.</span>flightEdit<span class="operator">-</span><span class="operator">&gt;</span>setFocus();
<span class="preprocessor">#ifdef QT_KEYPAD_NAVIGATION</span>
ui<span class="operator">.</span>flightEdit<span class="operator">-</span><span class="operator">&gt;</span>setEditFocus(<span class="keyword">true</span>);
<span class="preprocessor">#endif</span>
m_map <span class="operator">=</span> <span class="type"><a href="qpixmap.html">QPixmap</a></span>();
update();
}
<span class="type">void</span> startSearch() {
ui<span class="operator">.</span>searchBar<span class="operator">-</span><span class="operator">&gt;</span>hide();
<span class="type"><a href="qstring.html">QString</a></span> flight <span class="operator">=</span> ui<span class="operator">.</span>flightEdit<span class="operator">-</span><span class="operator">&gt;</span>text()<span class="operator">.</span>simplified();
<span class="keyword">if</span> (<span class="operator">!</span>flight<span class="operator">.</span>isEmpty())
request(flight<span class="operator">,</span> m_searchDate);
}
<span class="type">void</span> randomFlight() {
request(<span class="type"><a href="qstring.html">QString</a></span>()<span class="operator">,</span> <span class="type"><a href="qdate.html">QDate</a></span><span class="operator">::</span>currentDate());
}
<span class="keyword">public</span> <span class="keyword">slots</span>:
<span class="type">void</span> request(<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&amp;</span>flightCode<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="qdate.html">QDate</a></span> <span class="operator">&amp;</span>date) {
setWindowTitle(<span class="string">&quot;Loading...&quot;</span>);
<span class="type"><a href="qstring.html">QString</a></span> code <span class="operator">=</span> flightCode<span class="operator">.</span>simplified();
<span class="type"><a href="qstring.html">QString</a></span> airlineCode <span class="operator">=</span> code<span class="operator">.</span>left(<span class="number">2</span>)<span class="operator">.</span>toUpper();
<span class="type"><a href="qstring.html">QString</a></span> flightNumber <span class="operator">=</span> code<span class="operator">.</span>mid(<span class="number">2</span><span class="operator">,</span> code<span class="operator">.</span>length());
ui<span class="operator">.</span>flightName<span class="operator">-</span><span class="operator">&gt;</span>setText(<span class="string">&quot;Searching for &quot;</span> <span class="operator">+</span> code);
m_url <span class="operator">=</span> <span class="type"><a href="qurl.html">QUrl</a></span>(FLIGHTVIEW_URL);
m_url<span class="operator">.</span>addEncodedQueryItem(<span class="string">&quot;view&quot;</span><span class="operator">,</span> <span class="string">&quot;detail&quot;</span>);
m_url<span class="operator">.</span>addEncodedQueryItem(<span class="string">&quot;al&quot;</span><span class="operator">,</span> <span class="type"><a href="qurl.html">QUrl</a></span><span class="operator">::</span>toPercentEncoding(airlineCode));
m_url<span class="operator">.</span>addEncodedQueryItem(<span class="string">&quot;fn&quot;</span><span class="operator">,</span> <span class="type"><a href="qurl.html">QUrl</a></span><span class="operator">::</span>toPercentEncoding(flightNumber));
m_url<span class="operator">.</span>addEncodedQueryItem(<span class="string">&quot;dpdat&quot;</span><span class="operator">,</span> <span class="type"><a href="qurl.html">QUrl</a></span><span class="operator">::</span>toPercentEncoding(date<span class="operator">.</span>toString(<span class="string">&quot;yyyyMMdd&quot;</span>)));
<span class="keyword">if</span> (code<span class="operator">.</span>isEmpty()) {
<span class="comment">// random flight as sample</span>
m_url <span class="operator">=</span> <span class="type"><a href="qurl.html">QUrl</a></span>(FLIGHTVIEW_RANDOM);
ui<span class="operator">.</span>flightName<span class="operator">-</span><span class="operator">&gt;</span>setText(<span class="string">&quot;Getting a random flight...&quot;</span>);
}
m_manager<span class="operator">.</span>get(<span class="type"><a href="qnetworkrequest.html">QNetworkRequest</a></span>(m_url));
}
<span class="keyword">private</span>:
<span class="type">void</span> digest(<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&amp;</span>content) {
setWindowTitle(<span class="string">&quot;Flight Info&quot;</span>);
<span class="type"><a href="qstring.html">QString</a></span> data <span class="operator">=</span> sanitized(content);
<span class="comment">// do we only get the flight list?</span>
<span class="comment">// we grab the first leg in the flight list</span>
<span class="comment">// then fetch another URL for the real flight info</span>
<span class="type">int</span> i <span class="operator">=</span> data<span class="operator">.</span>indexOf(<span class="string">&quot;a href=\&quot;?view=detail&quot;</span>);
<span class="keyword">if</span> (i <span class="operator">&gt;</span> <span class="number">0</span>) {
<span class="type"><a href="qstring.html">QString</a></span> href <span class="operator">=</span> data<span class="operator">.</span>mid(i<span class="operator">,</span> data<span class="operator">.</span>indexOf(<span class="char">'\&quot;'</span><span class="operator">,</span> i <span class="operator">+</span> <span class="number">8</span>) <span class="operator">-</span> i <span class="operator">+</span> <span class="number">1</span>);
<span class="type"><a href="qregexp.html">QRegExp</a></span> regex(<span class="string">&quot;dpap=([A-Za-z0-9]+)&quot;</span>);
regex<span class="operator">.</span>indexIn(href);
<span class="type"><a href="qstring.html">QString</a></span> airport <span class="operator">=</span> regex<span class="operator">.</span>cap(<span class="number">1</span>);
m_url<span class="operator">.</span>addEncodedQueryItem(<span class="string">&quot;dpap&quot;</span><span class="operator">,</span> <span class="type"><a href="qurl.html">QUrl</a></span><span class="operator">::</span>toPercentEncoding(airport));
m_manager<span class="operator">.</span>get(<span class="type"><a href="qnetworkrequest.html">QNetworkRequest</a></span>(m_url));
<span class="keyword">return</span>;
}
<span class="type"><a href="qxmlstreamreader.html">QXmlStreamReader</a></span> xml(data);
<span class="type">bool</span> inFlightName <span class="operator">=</span> <span class="keyword">false</span>;
<span class="type">bool</span> inFlightStatus <span class="operator">=</span> <span class="keyword">false</span>;
<span class="type">bool</span> inFlightMap <span class="operator">=</span> <span class="keyword">false</span>;
<span class="type">bool</span> inFieldName <span class="operator">=</span> <span class="keyword">false</span>;
<span class="type">bool</span> inFieldValue <span class="operator">=</span> <span class="keyword">false</span>;
<span class="type"><a href="qstring.html">QString</a></span> flightName;
<span class="type"><a href="qstring.html">QString</a></span> flightStatus;
<span class="type"><a href="qstringlist.html">QStringList</a></span> fieldNames;
<span class="type"><a href="qstringlist.html">QStringList</a></span> fieldValues;
<span class="keyword">while</span> (<span class="operator">!</span>xml<span class="operator">.</span>atEnd()) {
xml<span class="operator">.</span>readNext();
<span class="keyword">if</span> (xml<span class="operator">.</span>tokenType() <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qxmlstreamreader.html">QXmlStreamReader</a></span><span class="operator">::</span>StartElement) {
<span class="type"><a href="qstringref.html">QStringRef</a></span> className <span class="operator">=</span> xml<span class="operator">.</span>attributes()<span class="operator">.</span>value(<span class="string">&quot;class&quot;</span>);
inFlightName <span class="operator">|</span><span class="operator">=</span> xml<span class="operator">.</span>name() <span class="operator">=</span><span class="operator">=</span> <span class="string">&quot;h1&quot;</span>;
inFlightStatus <span class="operator">|</span><span class="operator">=</span> className <span class="operator">=</span><span class="operator">=</span> <span class="string">&quot;FlightDetailHeaderStatus&quot;</span>;
inFlightMap <span class="operator">|</span><span class="operator">=</span> className <span class="operator">=</span><span class="operator">=</span> <span class="string">&quot;flightMap&quot;</span>;
<span class="keyword">if</span> (xml<span class="operator">.</span>name() <span class="operator">=</span><span class="operator">=</span> <span class="string">&quot;td&quot;</span> <span class="operator">&amp;</span><span class="operator">&amp;</span> <span class="operator">!</span>className<span class="operator">.</span>isEmpty()) {
<span class="type"><a href="qstring.html">QString</a></span> cn <span class="operator">=</span> className<span class="operator">.</span>toString();
<span class="keyword">if</span> (cn<span class="operator">.</span>contains(<span class="string">&quot;fieldTitle&quot;</span>)) {
inFieldName <span class="operator">=</span> <span class="keyword">true</span>;
fieldNames <span class="operator">+</span><span class="operator">=</span> <span class="type"><a href="qstring.html">QString</a></span>();
fieldValues <span class="operator">+</span><span class="operator">=</span> <span class="type"><a href="qstring.html">QString</a></span>();
}
<span class="keyword">if</span> (cn<span class="operator">.</span>contains(<span class="string">&quot;fieldValue&quot;</span>))
inFieldValue <span class="operator">=</span> <span class="keyword">true</span>;
}
<span class="keyword">if</span> (xml<span class="operator">.</span>name() <span class="operator">=</span><span class="operator">=</span> <span class="string">&quot;img&quot;</span> <span class="operator">&amp;</span><span class="operator">&amp;</span> inFlightMap) {
<span class="type"><a href="qstring.html">QString</a></span> src <span class="operator">=</span> xml<span class="operator">.</span>attributes()<span class="operator">.</span>value(<span class="string">&quot;src&quot;</span>)<span class="operator">.</span>toString();
src<span class="operator">.</span>prepend(<span class="string">&quot;http://mobile.flightview.com/&quot;</span>);
<span class="type"><a href="qurl.html">QUrl</a></span> url <span class="operator">=</span> <span class="type"><a href="qurl.html">QUrl</a></span><span class="operator">::</span>fromPercentEncoding(src<span class="operator">.</span>toAscii());
mapReplies<span class="operator">.</span>append(m_manager<span class="operator">.</span>get(<span class="type"><a href="qnetworkrequest.html">QNetworkRequest</a></span>(url)));
}
}
<span class="keyword">if</span> (xml<span class="operator">.</span>tokenType() <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qxmlstreamreader.html">QXmlStreamReader</a></span><span class="operator">::</span>EndElement) {
inFlightName <span class="operator">&amp;</span><span class="operator">=</span> xml<span class="operator">.</span>name() <span class="operator">!</span><span class="operator">=</span> <span class="string">&quot;h1&quot;</span>;
inFlightStatus <span class="operator">&amp;</span><span class="operator">=</span> xml<span class="operator">.</span>name() <span class="operator">!</span><span class="operator">=</span> <span class="string">&quot;div&quot;</span>;
inFlightMap <span class="operator">&amp;</span><span class="operator">=</span> xml<span class="operator">.</span>name() <span class="operator">!</span><span class="operator">=</span> <span class="string">&quot;div&quot;</span>;
inFieldName <span class="operator">&amp;</span><span class="operator">=</span> xml<span class="operator">.</span>name() <span class="operator">!</span><span class="operator">=</span> <span class="string">&quot;td&quot;</span>;
inFieldValue <span class="operator">&amp;</span><span class="operator">=</span> xml<span class="operator">.</span>name() <span class="operator">!</span><span class="operator">=</span> <span class="string">&quot;td&quot;</span>;
}
<span class="keyword">if</span> (xml<span class="operator">.</span>tokenType() <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qxmlstreamreader.html">QXmlStreamReader</a></span><span class="operator">::</span>Characters) {
<span class="keyword">if</span> (inFlightName)
flightName <span class="operator">+</span><span class="operator">=</span> xml<span class="operator">.</span>text();
<span class="keyword">if</span> (inFlightStatus)
flightStatus <span class="operator">+</span><span class="operator">=</span> xml<span class="operator">.</span>text();
<span class="keyword">if</span> (inFieldName)
fieldNames<span class="operator">.</span>last() <span class="operator">+</span><span class="operator">=</span> xml<span class="operator">.</span>text();
<span class="keyword">if</span> (inFieldValue)
fieldValues<span class="operator">.</span>last() <span class="operator">+</span><span class="operator">=</span> xml<span class="operator">.</span>text();
}
}
<span class="keyword">if</span> (fieldNames<span class="operator">.</span>isEmpty()) {
<span class="type"><a href="qstring.html">QString</a></span> code <span class="operator">=</span> ui<span class="operator">.</span>flightEdit<span class="operator">-</span><span class="operator">&gt;</span>text()<span class="operator">.</span>simplified()<span class="operator">.</span>left(<span class="number">10</span>);
<span class="type"><a href="qstring.html">QString</a></span> msg <span class="operator">=</span> <span class="type"><a href="qstring.html">QString</a></span>(<span class="string">&quot;Flight %1 is not found&quot;</span>)<span class="operator">.</span>arg(code);
ui<span class="operator">.</span>flightName<span class="operator">-</span><span class="operator">&gt;</span>setText(msg);
<span class="keyword">return</span>;
}
ui<span class="operator">.</span>flightName<span class="operator">-</span><span class="operator">&gt;</span>setText(flightName);
flightStatus<span class="operator">.</span>remove(<span class="string">&quot;Status: &quot;</span>);
ui<span class="operator">.</span>flightStatus<span class="operator">-</span><span class="operator">&gt;</span>setText(flightStatus);
ui<span class="operator">.</span>flightStatus<span class="operator">-</span><span class="operator">&gt;</span>show();
<span class="type"><a href="qstringlist.html">QStringList</a></span> whiteList;
whiteList <span class="operator">&lt;</span><span class="operator">&lt;</span> <span class="string">&quot;Departure&quot;</span>;
whiteList <span class="operator">&lt;</span><span class="operator">&lt;</span> <span class="string">&quot;Arrival&quot;</span>;
whiteList <span class="operator">&lt;</span><span class="operator">&lt;</span> <span class="string">&quot;Scheduled&quot;</span>;
whiteList <span class="operator">&lt;</span><span class="operator">&lt;</span> <span class="string">&quot;Takeoff&quot;</span>;
whiteList <span class="operator">&lt;</span><span class="operator">&lt;</span> <span class="string">&quot;Estimated&quot;</span>;
whiteList <span class="operator">&lt;</span><span class="operator">&lt;</span> <span class="string">&quot;Term-Gate&quot;</span>;
<span class="type"><a href="qstring.html">QString</a></span> text;
text <span class="operator">=</span> <span class="type"><a href="qstring.html">QString</a></span>(<span class="string">&quot;&lt;table width=%1&gt;&quot;</span>)<span class="operator">.</span>arg(width() <span class="operator">-</span> <span class="number">25</span>);
<span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator">&lt;</span> fieldNames<span class="operator">.</span>count(); i<span class="operator">+</span><span class="operator">+</span>) {
<span class="type"><a href="qstring.html">QString</a></span> fn <span class="operator">=</span> fieldNames<span class="operator">[</span>i<span class="operator">]</span><span class="operator">.</span>simplified();
<span class="keyword">if</span> (fn<span class="operator">.</span>endsWith(<span class="char">':'</span>))
fn <span class="operator">=</span> fn<span class="operator">.</span>left(fn<span class="operator">.</span>length() <span class="operator">-</span> <span class="number">1</span>);
<span class="keyword">if</span> (<span class="operator">!</span>whiteList<span class="operator">.</span>contains(fn))
<span class="keyword">continue</span>;
<span class="type"><a href="qstring.html">QString</a></span> fv <span class="operator">=</span> fieldValues<span class="operator">[</span>i<span class="operator">]</span><span class="operator">.</span>simplified();
<span class="type">bool</span> special <span class="operator">=</span> <span class="keyword">false</span>;
special <span class="operator">|</span><span class="operator">=</span> fn<span class="operator">.</span>startsWith(<span class="string">&quot;Departure&quot;</span>);
special <span class="operator">|</span><span class="operator">=</span> fn<span class="operator">.</span>startsWith(<span class="string">&quot;Arrival&quot;</span>);
text <span class="operator">+</span><span class="operator">=</span> <span class="string">&quot;&lt;tr&gt;&quot;</span>;
<span class="keyword">if</span> (special) {
text <span class="operator">+</span><span class="operator">=</span> <span class="string">&quot;&lt;td align=center colspan=2&gt;&quot;</span>;
text <span class="operator">+</span><span class="operator">=</span> <span class="string">&quot;&lt;b&gt;&lt;font size=+1&gt;&quot;</span> <span class="operator">+</span> fv <span class="operator">+</span> <span class="string">&quot;&lt;/font&gt;&lt;/b&gt;&quot;</span>;
text <span class="operator">+</span><span class="operator">=</span> <span class="string">&quot;&lt;/td&gt;&quot;</span>;
} <span class="keyword">else</span> {
text <span class="operator">+</span><span class="operator">=</span> <span class="string">&quot;&lt;td align=right&gt;&quot;</span>;
text <span class="operator">+</span><span class="operator">=</span> fn;
text <span class="operator">+</span><span class="operator">=</span> <span class="string">&quot; : &quot;</span>;
text <span class="operator">+</span><span class="operator">=</span> <span class="string">&quot;&amp;nbsp;&quot;</span>;
text <span class="operator">+</span><span class="operator">=</span> <span class="string">&quot;&lt;/td&gt;&quot;</span>;
text <span class="operator">+</span><span class="operator">=</span> <span class="string">&quot;&lt;td&gt;&quot;</span>;
text <span class="operator">+</span><span class="operator">=</span> fv;
text <span class="operator">+</span><span class="operator">=</span> <span class="string">&quot;&lt;/td&gt;&quot;</span>;
}
text <span class="operator">+</span><span class="operator">=</span> <span class="string">&quot;&lt;/tr&gt;&quot;</span>;
}
text <span class="operator">+</span><span class="operator">=</span> <span class="string">&quot;&lt;/table&gt;&quot;</span>;
ui<span class="operator">.</span>detailedInfo<span class="operator">-</span><span class="operator">&gt;</span>setText(text);
ui<span class="operator">.</span>infoBox<span class="operator">-</span><span class="operator">&gt;</span>show();
}
<span class="type">void</span> resizeEvent(<span class="type"><a href="qresizeevent.html">QResizeEvent</a></span> <span class="operator">*</span>event) {
Q_UNUSED(event);
ui<span class="operator">.</span>detailedInfo<span class="operator">-</span><span class="operator">&gt;</span>setMaximumWidth(width() <span class="operator">-</span> <span class="number">25</span>);
}
<span class="type">void</span> paintEvent(<span class="type"><a href="qpaintevent.html">QPaintEvent</a></span> <span class="operator">*</span>event) {
<span class="type"><a href="qmainwindow.html">QMainWindow</a></span><span class="operator">::</span>paintEvent(event);
<span class="type"><a href="qpainter.html">QPainter</a></span> p(<span class="keyword">this</span>);
p<span class="operator">.</span>fillRect(rect()<span class="operator">,</span> <span class="type"><a href="qcolor.html">QColor</a></span>(<span class="number">131</span><span class="operator">,</span> <span class="number">171</span><span class="operator">,</span> <span class="number">210</span>));
<span class="keyword">if</span> (<span class="operator">!</span>m_map<span class="operator">.</span>isNull()) {
<span class="type">int</span> x <span class="operator">=</span> (width() <span class="operator">-</span> m_map<span class="operator">.</span>width()) <span class="operator">/</span> <span class="number">2</span>;
<span class="type">int</span> space <span class="operator">=</span> ui<span class="operator">.</span>infoBox<span class="operator">-</span><span class="operator">&gt;</span>pos()<span class="operator">.</span>y();
<span class="keyword">if</span> (<span class="operator">!</span>ui<span class="operator">.</span>infoBox<span class="operator">-</span><span class="operator">&gt;</span>isVisible())
space <span class="operator">=</span> height();
<span class="type">int</span> top <span class="operator">=</span> ui<span class="operator">.</span>titleBox<span class="operator">-</span><span class="operator">&gt;</span>height();
<span class="type">int</span> y <span class="operator">=</span> <a href="qtglobal.html#qMax">qMax</a>(top<span class="operator">,</span> (space <span class="operator">-</span> m_map<span class="operator">.</span>height()) <span class="operator">/</span> <span class="number">2</span>);
p<span class="operator">.</span>drawPixmap(x<span class="operator">,</span> y<span class="operator">,</span> m_map);
}
p<span class="operator">.</span>end();
}
};
<span class="preprocessor">#include &quot;flightinfo.moc&quot;</span>
<span class="type">int</span> main(<span class="type">int</span> argc<span class="operator">,</span> <span class="type">char</span> <span class="operator">*</span><span class="operator">*</span>argv)
{
Q_INIT_RESOURCE(flightinfo);
<span class="type"><a href="qapplication.html">QApplication</a></span> app(argc<span class="operator">,</span> argv);
FlightInfo w;
<span class="preprocessor">#if defined(Q_OS_SYMBIAN)</span>
w<span class="operator">.</span>showMaximized();
<span class="preprocessor">#else</span>
w<span class="operator">.</span>resize(<span class="number">360</span><span class="operator">,</span> <span class="number">504</span>);
w<span class="operator">.</span>show();
<span class="preprocessor">#endif</span>
<span class="keyword">return</span> app<span class="operator">.</span>exec();
}</pre>
</div>
<!-- @@@demos/embedded/flightinfo/flightinfo.cpp -->
</div>
</div>
</div>
<div class="ft">
<span></span>
</div>
</div>
<div class="footer">
<p>
<acronym title="Copyright">&copy;</acronym> 2015 The Qt Company Ltd.
Documentation contributions included herein are the copyrights of
their respective owners.</p>
<br />
<p>
The documentation provided herein is licensed under the terms of the
<a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation
License version 1.3</a> as published by the Free Software Foundation.</p>
<p>
Documentation sources may be obtained from <a href="http://www.qt-project.org">
www.qt-project.org</a>.</p>
<br />
<p>
Qt and respective logos are trademarks of The Qt Company Ltd
in Finland and/or other countries worldwide. All other trademarks are property
of their respective owners. <a title="Privacy Policy"
href="http://en.gitorious.org/privacy_policy/">Privacy Policy</a></p>
</div>
<script src="scripts/functions.js" type="text/javascript"></script>
</body>
</html>
Reference in New Issue View Git Blame Copy Permalink