38be0d1383
This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
400 lines
12 KiB
C++
400 lines
12 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the demonstration applications of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtCore>
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#include <QtGui>
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#include <QtNetwork>
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#include "ui_form.h"
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#define FLIGHTVIEW_URL "http://mobile.flightview.com/TrackByFlight.aspx"
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#define FLIGHTVIEW_RANDOM "http://mobile.flightview.com/TrackSampleFlight.aspx"
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// strips all invalid constructs that might trip QXmlStreamReader
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static QString sanitized(const QString &xml)
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{
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QString data = xml;
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// anything up to the html tag
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int i = data.indexOf("<html");
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if (i > 0)
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data.remove(0, i - 1);
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// everything inside the head tag
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i = data.indexOf("<head");
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if (i > 0)
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data.remove(i, data.indexOf("</head>") - i + 7);
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// invalid link for JavaScript code
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while (true) {
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i = data.indexOf("onclick=\"gotoUrl(");
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if (i < 0)
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break;
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data.remove(i, data.indexOf('\"', i + 9) - i + 1);
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}
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// all inline frames
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while (true) {
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i = data.indexOf("<iframe");
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if (i < 0)
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break;
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data.remove(i, data.indexOf("</iframe>") - i + 8);
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}
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// entities
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data.remove(" ");
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data.remove("©");
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return data;
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}
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class FlightInfo : public QMainWindow
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{
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Q_OBJECT
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private:
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Ui_Form ui;
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QUrl m_url;
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QDate m_searchDate;
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QPixmap m_map;
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QNetworkAccessManager m_manager;
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QList<QNetworkReply *> mapReplies;
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public:
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FlightInfo(QMainWindow *parent = 0): QMainWindow(parent) {
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QWidget *w = new QWidget(this);
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ui.setupUi(w);
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setCentralWidget(w);
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ui.searchBar->hide();
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ui.infoBox->hide();
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connect(ui.searchButton, SIGNAL(clicked()), SLOT(startSearch()));
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connect(ui.flightEdit, SIGNAL(returnPressed()), SLOT(startSearch()));
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setWindowTitle("Flight Info");
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// Rendered from the public-domain vectorized aircraft
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// http://openclipart.org/media/people/Jarno
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m_map = QPixmap(":/aircraft.png");
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QAction *searchTodayAction = new QAction("Today's Flight", this);
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QAction *searchYesterdayAction = new QAction("Yesterday's Flight", this);
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QAction *randomAction = new QAction("Random Flight", this);
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connect(searchTodayAction, SIGNAL(triggered()), SLOT(today()));
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connect(searchYesterdayAction, SIGNAL(triggered()), SLOT(yesterday()));
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connect(randomAction, SIGNAL(triggered()), SLOT(randomFlight()));
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connect(&m_manager, SIGNAL(finished(QNetworkReply*)),
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this, SLOT(handleNetworkData(QNetworkReply*)));
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#if defined(Q_OS_SYMBIAN)
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menuBar()->addAction(searchTodayAction);
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menuBar()->addAction(searchYesterdayAction);
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menuBar()->addAction(randomAction);
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#else
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addAction(searchTodayAction);
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addAction(searchYesterdayAction);
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addAction(randomAction);
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setContextMenuPolicy(Qt::ActionsContextMenu);
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#endif
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}
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private slots:
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void handleNetworkData(QNetworkReply *networkReply) {
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if (!networkReply->error()) {
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if (!mapReplies.contains(networkReply)) {
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// Assume UTF-8 encoded
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QByteArray data = networkReply->readAll();
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QString xml = QString::fromUtf8(data);
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digest(xml);
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} else {
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mapReplies.removeOne(networkReply);
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m_map.loadFromData(networkReply->readAll());
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update();
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}
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}
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networkReply->deleteLater();
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}
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void today() {
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QDateTime timestamp = QDateTime::currentDateTime();
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m_searchDate = timestamp.date();
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searchFlight();
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}
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void yesterday() {
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QDateTime timestamp = QDateTime::currentDateTime();
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timestamp = timestamp.addDays(-1);
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m_searchDate = timestamp.date();
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searchFlight();
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}
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void searchFlight() {
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ui.searchBar->show();
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ui.infoBox->hide();
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ui.flightStatus->hide();
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ui.flightName->setText("Enter flight number");
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ui.flightEdit->setFocus();
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#ifdef QT_KEYPAD_NAVIGATION
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ui.flightEdit->setEditFocus(true);
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#endif
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m_map = QPixmap();
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update();
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}
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void startSearch() {
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ui.searchBar->hide();
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QString flight = ui.flightEdit->text().simplified();
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if (!flight.isEmpty())
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request(flight, m_searchDate);
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}
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void randomFlight() {
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request(QString(), QDate::currentDate());
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}
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public slots:
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void request(const QString &flightCode, const QDate &date) {
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setWindowTitle("Loading...");
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QString code = flightCode.simplified();
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QString airlineCode = code.left(2).toUpper();
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QString flightNumber = code.mid(2, code.length());
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ui.flightName->setText("Searching for " + code);
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m_url = QUrl(FLIGHTVIEW_URL);
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m_url.addEncodedQueryItem("view", "detail");
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m_url.addEncodedQueryItem("al", QUrl::toPercentEncoding(airlineCode));
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m_url.addEncodedQueryItem("fn", QUrl::toPercentEncoding(flightNumber));
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m_url.addEncodedQueryItem("dpdat", QUrl::toPercentEncoding(date.toString("yyyyMMdd")));
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if (code.isEmpty()) {
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// random flight as sample
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m_url = QUrl(FLIGHTVIEW_RANDOM);
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ui.flightName->setText("Getting a random flight...");
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}
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m_manager.get(QNetworkRequest(m_url));
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}
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private:
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void digest(const QString &content) {
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setWindowTitle("Flight Info");
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QString data = sanitized(content);
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// do we only get the flight list?
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// we grab the first leg in the flight list
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// then fetch another URL for the real flight info
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int i = data.indexOf("a href=\"?view=detail");
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if (i > 0) {
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QString href = data.mid(i, data.indexOf('\"', i + 8) - i + 1);
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QRegExp regex("dpap=([A-Za-z0-9]+)");
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regex.indexIn(href);
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QString airport = regex.cap(1);
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m_url.addEncodedQueryItem("dpap", QUrl::toPercentEncoding(airport));
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m_manager.get(QNetworkRequest(m_url));
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return;
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}
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QXmlStreamReader xml(data);
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bool inFlightName = false;
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bool inFlightStatus = false;
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bool inFlightMap = false;
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bool inFieldName = false;
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bool inFieldValue = false;
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QString flightName;
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QString flightStatus;
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QStringList fieldNames;
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QStringList fieldValues;
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while (!xml.atEnd()) {
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xml.readNext();
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if (xml.tokenType() == QXmlStreamReader::StartElement) {
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QStringRef className = xml.attributes().value("class");
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inFlightName |= xml.name() == "h1";
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inFlightStatus |= className == "FlightDetailHeaderStatus";
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inFlightMap |= className == "flightMap";
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if (xml.name() == "td" && !className.isEmpty()) {
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QString cn = className.toString();
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if (cn.contains("fieldTitle")) {
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inFieldName = true;
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fieldNames += QString();
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fieldValues += QString();
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}
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if (cn.contains("fieldValue"))
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inFieldValue = true;
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}
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if (xml.name() == "img" && inFlightMap) {
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QString src = xml.attributes().value("src").toString();
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src.prepend("http://mobile.flightview.com/");
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QUrl url = QUrl::fromPercentEncoding(src.toAscii());
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mapReplies.append(m_manager.get(QNetworkRequest(url)));
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}
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}
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if (xml.tokenType() == QXmlStreamReader::EndElement) {
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inFlightName &= xml.name() != "h1";
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inFlightStatus &= xml.name() != "div";
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inFlightMap &= xml.name() != "div";
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inFieldName &= xml.name() != "td";
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inFieldValue &= xml.name() != "td";
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}
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if (xml.tokenType() == QXmlStreamReader::Characters) {
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if (inFlightName)
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flightName += xml.text();
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if (inFlightStatus)
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flightStatus += xml.text();
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if (inFieldName)
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fieldNames.last() += xml.text();
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if (inFieldValue)
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fieldValues.last() += xml.text();
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}
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}
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if (fieldNames.isEmpty()) {
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QString code = ui.flightEdit->text().simplified().left(10);
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QString msg = QString("Flight %1 is not found").arg(code);
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ui.flightName->setText(msg);
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return;
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}
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ui.flightName->setText(flightName);
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flightStatus.remove("Status: ");
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ui.flightStatus->setText(flightStatus);
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ui.flightStatus->show();
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QStringList whiteList;
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whiteList << "Departure";
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whiteList << "Arrival";
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whiteList << "Scheduled";
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whiteList << "Takeoff";
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whiteList << "Estimated";
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whiteList << "Term-Gate";
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QString text;
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text = QString("<table width=%1>").arg(width() - 25);
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for (int i = 0; i < fieldNames.count(); i++) {
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QString fn = fieldNames[i].simplified();
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if (fn.endsWith(':'))
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fn = fn.left(fn.length() - 1);
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if (!whiteList.contains(fn))
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continue;
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QString fv = fieldValues[i].simplified();
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bool special = false;
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special |= fn.startsWith("Departure");
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special |= fn.startsWith("Arrival");
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text += "<tr>";
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if (special) {
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text += "<td align=center colspan=2>";
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text += "<b><font size=+1>" + fv + "</font></b>";
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text += "</td>";
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} else {
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text += "<td align=right>";
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text += fn;
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text += " : ";
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text += " ";
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text += "</td>";
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text += "<td>";
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text += fv;
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text += "</td>";
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}
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text += "</tr>";
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}
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text += "</table>";
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ui.detailedInfo->setText(text);
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ui.infoBox->show();
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}
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void resizeEvent(QResizeEvent *event) {
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Q_UNUSED(event);
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ui.detailedInfo->setMaximumWidth(width() - 25);
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}
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void paintEvent(QPaintEvent *event) {
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QMainWindow::paintEvent(event);
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QPainter p(this);
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p.fillRect(rect(), QColor(131, 171, 210));
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if (!m_map.isNull()) {
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int x = (width() - m_map.width()) / 2;
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int space = ui.infoBox->pos().y();
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if (!ui.infoBox->isVisible())
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space = height();
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int top = ui.titleBox->height();
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int y = qMax(top, (space - m_map.height()) / 2);
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p.drawPixmap(x, y, m_map);
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}
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p.end();
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}
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};
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#include "flightinfo.moc"
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int main(int argc, char **argv)
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{
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Q_INIT_RESOURCE(flightinfo);
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QApplication app(argc, argv);
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FlightInfo w;
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#if defined(Q_OS_SYMBIAN)
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w.showMaximized();
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#else
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w.resize(360, 504);
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w.show();
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#endif
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return app.exec();
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}
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