File indexing completed on 2024-05-05 03:50:38

 // SPDX-License-Identifier: LGPL-2.1-or-later
 //
 // SPDX-FileCopyrightText: 2017 Sutirtha Ghosh <ghsutirtha@gmail.com>
 //
 
 //Self
 #include "DownloadOsmDialog.h"
 
 //Qt
 #include <QMessageBox>
 #include <QDialogButtonBox>
 #include  <QDir>
 
 //Marble
 #include "MarbleWidget.h"
 #include "ViewParams.h"
 #include "ViewportParams.h"
 #include "GeoDataLatLonAltBox.h"
 #include "GeoDataLatLonBox.h"
 #include "MarbleGlobal.h"
 #include "AnnotatePlugin.h"
 
 namespace Marble
 {
 DownloadOsmDialog::DownloadOsmDialog(MarbleWidget *parent,AnnotatePlugin *annotatePlugin) :
     QDialog(parent),
     m_marbleWidget(parent),
     m_latLonBoxWidget(new LatLonBoxWidget)
 {
     setupUi(this);
     horizontalLayout->addWidget(m_latLonBoxWidget);
     this->setWindowTitle(tr("Download"));
     connect(m_marbleWidget,
             SIGNAL(visibleLatLonAltBoxChanged(GeoDataLatLonAltBox)),
             this,
             SLOT(updateCoordinates(GeoDataLatLonAltBox))
             );
 
     m_downloadButton = new QPushButton(tr("Download"));
     m_downloadButton->setDefault(true);
 
     buttonBox->addButton(m_downloadButton,QDialogButtonBox::ActionRole);
 
     connect( m_downloadButton, SIGNAL(clicked(bool)), this, SLOT(downloadFile()) );
     connect( buttonBox, SIGNAL(rejected()), this, SLOT(close()) );
     connect( this, SIGNAL(openFile(QString)), annotatePlugin, SLOT(openAnnotationFile(QString)) );
 
     progressBar->hide();
     updateCoordinates();
 }
 
 DownloadOsmDialog::~DownloadOsmDialog()
 {
 
 }
 
 void DownloadOsmDialog::updateCoordinates()
 {
 
     m_latLonBoxWidget->setLatLonBox( m_marbleWidget->viewport()->viewLatLonAltBox() );
 }
 
 void DownloadOsmDialog::updateCoordinates( const GeoDataLatLonAltBox& boundingBox )
 {
     m_latLonBoxWidget->setLatLonBox( boundingBox );
 }
 
 void DownloadOsmDialog::downloadFile()
 {
     QString m_west;
     QString m_south;
     QString m_east;
     QString m_north;
     QString url;
     m_isDownloadSuccess=false;
     m_file = new QTemporaryFile(QDir::tempPath()+"/"+"XXXXXXosmdata.osm");
     if(!m_file->open())
     {
         QMessageBox::information(this, tr("ERROR"),
                                  tr("Unable to create temporary file to download OSM data to."));
         this->close();
     }
     m_downloadButton->setEnabled(false);
 
     m_west=QString::number( m_latLonBoxWidget->latLonBox().west()*RAD2DEG );
     m_south=QString::number( m_latLonBoxWidget->latLonBox().south()*RAD2DEG );
     m_east=QString::number( m_latLonBoxWidget->latLonBox().east()*RAD2DEG );
     m_north=QString::number( m_latLonBoxWidget->latLonBox().north()*RAD2DEG );
 
     url="http://api.openstreetmap.org/api/0.6/map?bbox=";
     url+=m_west+",";
     url+=m_south+",";
     url+=m_east+",";
     url+=m_north;
 
     m_reply = m_qnam.get(QNetworkRequest(QUrl(url)));
 
     connect( m_reply, SIGNAL(finished()), this, SLOT(httpFinished()) );
     connect( m_reply, SIGNAL(readyRead()), this, SLOT(httpReadyRead()) );
 
     progressBar->show();
     progressBar->setMinimum(0);
     progressBar->setMaximum(0);
 }
 
 void DownloadOsmDialog::httpReadyRead()
 {
     //Reads all the data present and writes it to the file whenever data is
     //available
     if ( m_file ){
         m_file->write(m_reply->readAll());
     }
 }
 
 void DownloadOsmDialog::httpFinished()
 {
     QVariant statusCode = m_reply->attribute(QNetworkRequest::HttpStatusCodeAttribute);
     int status = statusCode.toInt();
     //in case download fails due to network error or server not available
     if ( m_reply->error()==QNetworkReply::NoError ){
         m_isDownloadSuccess=true;
     }
     else {
         switch(status)
         {
         case 400:
             QMessageBox::information(this, tr("ERROR"),
                                      tr("The selected region contains too much data. Please select a smaller region and try again."));
             m_downloadButton->setEnabled(true);
             m_isDownloadSuccess=false;
             break;
         case 509:
             QMessageBox::information(this, tr("ERROR"),
                                      tr("The bandwidth limit exceeded. Please try again later."));
             m_downloadButton->setEnabled(true);
             m_isDownloadSuccess=false;
             break;
         default:
             QMessageBox::information(this, tr("ERROR"),tr("Sorry, a network error occurred. Please check your internet connection"
                                                        " or try again later."));
             m_downloadButton->setEnabled(true);
             m_isDownloadSuccess=false;
             break;
         }
     }
 
     progressBar->hide();
     m_file->flush();
     m_file->close();
     if( m_isDownloadSuccess ) {
         emit openFile(m_file->fileName());
     }
     m_reply->deleteLater();
     m_reply=nullptr;
     delete m_file;
     m_file=nullptr;
     if( m_isDownloadSuccess ) {
         this->close();
     }
 }
 
 }
 #include "moc_DownloadOsmDialog.cpp"