progress.cpp Example File

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 #include "progress.h"
 #include "ui_progress.h"

 #include <qbluetoothdeviceinfo.h>
 #include <qbluetoothaddress.h>
 #include <qbluetoothtransferrequest.h>
 #include <qbluetoothtransferreply.h>

 QTBLUETOOTH_USE_NAMESPACE

 Progress::Progress(QWidget *parent) :
     QDialog(parent),
     ui(new Ui::Progress)
 {
     ui->setupUi(this);
     ui->progressBar->setRange(0, 1);
     connect(ui->cancelButton, SIGNAL(clicked()), this, SLOT(close()));
 }

 Progress::~Progress()
 {
     delete ui;
 }

 void Progress::setStatus(QString title, QString filename) {
     ui->titleLabel->setText(title);
     ui->statusLabel->setText(filename);
 }

 void Progress::finished(QBluetoothTransferReply *reply){
     if (reply->error() != QBluetoothTransferReply::NoError){
         ui->progressBar->setDisabled(true);
         ui->statusLabel->setText(tr("Failed: %1").arg(reply->errorString()));
     }
     else {
         ui->statusLabel->setText(tr("Transfer complete"));
     }
     ui->cancelButton->setText(tr("Dismiss"));
 }

 void Progress::uploadProgress(qint64 bytesSent, qint64 bytesTotal)
 {
     if (bytesSent == 0){
         start.start();
     }

     ui->progressBar->setMaximum(bytesTotal);
     ui->progressBar->setValue(bytesSent);
     if (bytesSent && bytesTotal &&
             (start.elapsed() > 1000) &&
             (bytesSent > start.elapsed()/1000)) {

         ui->statusLabel->setText(tr("Transferring...ETA: %1s")
                 .arg(((bytesTotal-bytesSent)/(bytesSent/(start.elapsed()/1000)))));
     }
 }