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     connect(positionInfoSource, SIGNAL(positionUpdated(QGeoPositionInfo)),
  55             stationListView, SLOT(updatePosition(QGeoPositionInfo)));
  56     connect(stationListView, SIGNAL(stationSelected(const QString &)),
  57             SLOT(queryStation(const QString &)));
  58
  59     connect(stationListView, SIGNAL(aboutTriggered()),
  60             SLOT(showAboutDialog()));
  61     connect(stationView, SIGNAL(aboutTriggered()),
  62             SLOT(showAboutDialog()));
  63
  64     connect(stationListView, SIGNAL(settingsChangeRequested()),
  65             SLOT(showSettingsDialog()));
  66     connect(stationView, SIGNAL(settingsChangeRequested()),
  67             SLOT(showSettingsDialog()));
  68
  69     connect(stationView, SIGNAL(stationListSelectTriggered()),
  70             SLOT(showStationSelectView()));
  71
  72     readSettings();
  73
  74     qDebug() << "found" << stationListModel->rowCount() << "stations";
  75     stationView->show();
  76     if (recentStations.isEmpty() || !stationViewPreferred) {
  77         stationListView->show();
  78     } else {
  79         queryStation(recentStations.front());
  80     }
  81
  82     // Testing only: start updates rigt away.
  83     positionInfoSource->startUpdates();
  84 }
  85
  86 App::~App()
  87 {
  88     delete stationView;
  89     saveSettings();
  90 }
  91
  92 void App::downloadFinished(void)
  93 {
  94     disconnect(stationQueryReply, SIGNAL(finished()),
  95                this, SLOT(downloadFinished()));
  96     stationView->updateView(stationQueryReply->readAll());
  97     stationListView->hide();
  98     stationQueryReply->deleteLater();
  99     stationQueryReply = 0;
 100 #ifdef Q_WS_MAEMO_5
 101     stationListView->setAttribute(Qt::WA_Maemo5ShowProgressIndicator, false);
 102 #endif
 103 }
 104
 105 void App::queryStation(const QString &station)
 106 {
 107     QNetworkRequest request;
 108     request.setUrl(queryBaseUrl);
 109     const QString queryString = "stazione=" + station;
 110     const QByteArray query(queryString.toLocal8Bit());
 111     stationQueryReply = accessManager->post(request, query);
 112     connect(stationQueryReply, SIGNAL(finished()),
 113             this, SLOT(downloadFinished()));
 114     recentStations.push_front(station);
 115     recentStations.removeDuplicates();
 116     if (recentStations.count() > RECENT_STATIONS_MAX_COUNT) {
 117         recentStations.pop_back();
 118     }
 119 #ifdef Q_WS_MAEMO_5
 120     stationListView->setAttribute(Qt::WA_Maemo5ShowProgressIndicator, true);
 121 #endif
 122 }
 123
 124 void App::showSettingsDialog()
 125 {
 126     qDebug() << "Settings Dialog called";
 127
 128     SettingsDialog *dialog = new SettingsDialog(stationView);
 129     if (dialog->exec() == QDialog::Accepted) {
 130         readSettings();
 131     }
 132     delete dialog;
 133 }
 134
 135 void App::showAboutDialog()
 136 {
 137     qDebug() << "About Dialog called";
 138     QString name = QApplication::instance()->applicationName();
 139     QString version = QApplication::instance()->applicationVersion();
 140     QString aboutText = QString(
 141                 tr("<p>%1 version %2</p>"
 142                    "<p>Copyright (c) 2010, 2011</p>"
 143                    "<p>Luciano Montanaro (mikelima@cirulla.net)</p>"
 144                    "<p>Licensed under the GNU Public License v2 or above</p>")).arg(name).arg(version);
 145     QMessageBox::about(stationView, name, aboutText);
 146 }
 147
 148 void App::showStationSelectView(void)
 149 {
 150     stationListView->show();
 151 }
 152
 153 void App::readSettings(void)
 154 {
 155     QSettings settings;
 156     queryBaseUrl = settings.value("QueryURL",
 157                                   "http://mobile.viaggiatreno.it/viaggiatreno/mobile/stazione").toString();
 158     stationView->setBaseUrl(queryBaseUrl);
 159
 160     recentStations = settings.value("RecentStations").toString().split(",");
 161     checkingInterval = settings.value("CheckInterval", 2000).toInt();
 162     stationViewPreferred = settings.value("StationViewPreferred", false).toBool();
 163 }
 164
 165 void App::saveSettings(void)
 166 {
 167     QSettings settings;
 168
 169     qDebug() << "Saving Settings to" << settings.fileName();
 170
 171     settings.setValue("QueryURL", queryBaseUrl);
 172     settings.setValue("RecentStations", recentStations.join(","));
 173     settings.setValue("CheckInterval", checkingInterval);
 174     settings.setValue("StationViewPreferred", stationViewPreferred);
 175 }
 176
 177 QString App::dataDir(void)
 178 {
 179 #ifdef Q_WS_MAEMO_5
 180     return QString("/opt/usr/share/apps/quandoparte/");
 181 #else
 182     return QString("/usr/share/apps/quandoparte/");
 183 #endif
 184 }