git.maemo.org Git - quandoparte/blob - application/app.cpp

   1 /*
   2
   3 Copyright (C) 2011 Luciano Montanaro <mikelima@cirulla.net>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU General Public License as published by
   7 the Free Software Foundation; either version 2 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13 General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; see the file COPYING.  If not, write to
  17 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  18 Boston, MA 02110-1301, USA.
  19
  20 */
  21
  22 #include "app.h"
  23 #include "stationview.h"
  24 #include "stationlistmodel.h"
  25 #include "stationlistview.h"
  26 #include "settingsdialog.h"
  27
  28 #include <QDebug>
  29 #include <QMessageBox>
  30 #include <QNetworkAccessManager>
  31 #include <QNetworkReply>
  32 #include <QNetworkRequest>
  33 #include <QObject>
  34 #include <QSettings>
  35 #include <QUrl>
  36
  37 #include <QGeoPositionInfoSource>
  38
  39 // Constants
  40 static const int RECENT_STATIONS_MAX_COUNT = 10;
  41
  42 QTM_USE_NAMESPACE
  43
  44 App::App(QObject *parent) :
  45     QObject(parent),
  46     accessManager(new QNetworkAccessManager(this)),
  47     positionInfoSource(QGeoPositionInfoSource::createDefaultSource(this)),
  48     stationView(new StationView()),
  49     stationListModel(new StationListModel(this)),
  50     stationListView(new StationListView(stationListModel, stationView))
  51 {
  52     stationListModel->load(dataDir() + "stations/stations.qpl");
  53
  54     if (positionInfoSource) {
  55         connect(positionInfoSource, SIGNAL(positionUpdated(QGeoPositionInfo)),
  56                 stationListView, SLOT(updatePosition(QGeoPositionInfo)));
  57     }
  58     connect(stationListView, SIGNAL(stationSelected(const QString &)),
  59             SLOT(queryStation(const QString &)));
  60
  61     connect(stationListView, SIGNAL(aboutTriggered()),
  62             SLOT(showAboutDialog()));
  63     connect(stationView, SIGNAL(aboutTriggered()),
  64             SLOT(showAboutDialog()));
  65
  66     connect(stationListView, SIGNAL(settingsChangeRequested()),
  67             SLOT(showSettingsDialog()));
  68     connect(stationView, SIGNAL(settingsChangeRequested()),
  69             SLOT(showSettingsDialog()));
  70
  71     connect(stationView, SIGNAL(stationListSelectTriggered()),
  72             SLOT(showStationSelectView()));
  73
  74     readSettings();
  75
  76     qDebug() << "found" << stationListModel->rowCount() << "stations";
  77     stationView->show();
  78     if (recentStations.isEmpty() || !stationViewPreferred) {
  79         stationListView->show();
  80     } else {
  81         queryStation(recentStations.front());
  82     }
  83
  84     // Testing only: start updates rigt away.
  85     if (positionInfoSource) {
  86         positionInfoSource->startUpdates();
  87     }
  88 }
  89
  90 App::~App()
  91 {
  92     delete stationView;
  93     saveSettings();
  94 }
  95
  96 void App::downloadFinished(void)
  97 {
  98     disconnect(stationQueryReply, SIGNAL(finished()),
  99                this, SLOT(downloadFinished()));
 100     stationView->updateView(stationQueryReply->readAll());
 101     stationListView->hide();
 102     stationQueryReply->deleteLater();
 103     stationQueryReply = 0;
 104 #ifdef Q_WS_MAEMO_5
 105     stationListView->setAttribute(Qt::WA_Maemo5ShowProgressIndicator, false);
 106 #endif
 107 }
 108
 109 void App::queryStation(const QString &station)
 110 {
 111     QNetworkRequest request;
 112     request.setUrl(queryBaseUrl);
 113     const QString queryString = "stazione=" + station;
 114     const QByteArray query(queryString.toLocal8Bit());
 115     stationQueryReply = accessManager->post(request, query);
 116     connect(stationQueryReply, SIGNAL(finished()),
 117             this, SLOT(downloadFinished()));
 118     recentStations.push_front(station);
 119     recentStations.removeDuplicates();
 120     if (recentStations.count() > RECENT_STATIONS_MAX_COUNT) {
 121         recentStations.pop_back();
 122     }
 123 #ifdef Q_WS_MAEMO_5
 124     stationListView->setAttribute(Qt::WA_Maemo5ShowProgressIndicator, true);
 125 #endif
 126 }
 127
 128 void App::showSettingsDialog()
 129 {
 130     qDebug() << "Settings Dialog called";
 131
 132     SettingsDialog *dialog = new SettingsDialog(stationView);
 133     if (dialog->exec() == QDialog::Accepted) {
 134         readSettings();
 135     }
 136     delete dialog;
 137 }
 138
 139 void App::showAboutDialog()
 140 {
 141     qDebug() << "About Dialog called";
 142     QString name = QApplication::instance()->applicationName();
 143     QString version = QApplication::instance()->applicationVersion();
 144     QString aboutText = QString(
 145                 tr("<p>%1 version %2</p>"
 146                    "<p>Copyright (c) 2010, 2011</p>"
 147                    "<p>Luciano Montanaro (mikelima@cirulla.net)</p>"
 148                    "<p>Licensed under the GNU Public License v2 or above</p>")).arg(name).arg(version);
 149     QMessageBox::about(stationView, name, aboutText);
 150 }
 151
 152 void App::showStationSelectView(void)
 153 {
 154     stationListView->show();
 155 }
 156
 157 void App::readSettings(void)
 158 {
 159     QSettings settings;
 160     queryBaseUrl = settings.value("QueryURL",
 161                                   "http://mobile.viaggiatreno.it/viaggiatreno/mobile/stazione").toString();
 162     stationView->setBaseUrl(queryBaseUrl);
 163
 164     recentStations = settings.value("RecentStations").toString().split(",");
 165     checkingInterval = settings.value("CheckInterval", 2000).toInt();
 166     stationViewPreferred = settings.value("StationViewPreferred", false).toBool();
 167 }
 168
 169 void App::saveSettings(void)
 170 {
 171     QSettings settings;
 172
 173     qDebug() << "Saving Settings to" << settings.fileName();
 174
 175     settings.setValue("QueryURL", queryBaseUrl);
 176     settings.setValue("RecentStations", recentStations.join(","));
 177     settings.setValue("CheckInterval", checkingInterval);
 178     settings.setValue("StationViewPreferred", stationViewPreferred);
 179 }
 180
 181 QString App::dataDir(void)
 182 {
 183 #ifdef Q_WS_MAEMO_5
 184     return QString("/opt/usr/share/apps/quandoparte/");
 185 #else
 186     return QString("/usr/share/apps/quandoparte/");
 187 #endif
 188 }