Qt 5.11 | Qt Bluetooth | Bluetooth File Transfer Example | progress.cpp Example File

Qt 5.11.3 Reference Documentation

# progress.cpp Example File

btfiletransfer/progress.cpp

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

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

      QT_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)))));
          }
      }