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114 lines
3.1 KiB
114 lines
3.1 KiB
14 years ago
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#include <QFileDialog>
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#include <QMessageBox>
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#include <QDesktopServices>
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#include "QGCMAVLinkLogPlayer.h"
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#include "ui_QGCMAVLinkLogPlayer.h"
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QGCMAVLinkLogPlayer::QGCMAVLinkLogPlayer(MAVLinkProtocol* mavlink, QWidget *parent) :
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QWidget(parent),
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lineCounter(0),
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totalLines(0),
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startTime(0),
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endTime(0),
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currentTime(0),
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mavlink(mavlink),
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ui(new Ui::QGCMAVLinkLogPlayer)
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{
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ui->setupUi(this);
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ui->gridLayout->setAlignment(Qt::AlignTop);
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// Setup buttons
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connect(ui->selectFileButton, SIGNAL(clicked()), this, SLOT(selectLogFile()));
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connect(ui->pauseButton, SIGNAL(clicked()), this, SLOT(pause()));
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connect(ui->playButton, SIGNAL(clicked()), this, SLOT(play()));
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}
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QGCMAVLinkLogPlayer::~QGCMAVLinkLogPlayer()
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{
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delete ui;
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}
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void QGCMAVLinkLogPlayer::play()
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{
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if (logFile.isOpen())
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{
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ui->pauseButton->setChecked(false);
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}
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else
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{
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ui->playButton->setChecked(false);
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QMessageBox msgBox;
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msgBox.setIcon(QMessageBox::Information);
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msgBox.setText(tr("No logfile selected"));
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msgBox.setInformativeText(tr("Please select first a MAVLink log file before playing it."));
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msgBox.setStandardButtons(QMessageBox::Ok);
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msgBox.setDefaultButton(QMessageBox::Ok);
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msgBox.exec();
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}
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}
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void QGCMAVLinkLogPlayer::pause()
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{
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ui->playButton->setChecked(false);
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}
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void QGCMAVLinkLogPlayer::selectLogFile()
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{
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QString fileName = QFileDialog::getOpenFileName(this, tr("Specify MAVLink log file name"), QDesktopServices::storageLocation(QDesktopServices::DesktopLocation), tr("MAVLink Logfile (*.mavlink);;"));
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loadLogFile(fileName);
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}
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void QGCMAVLinkLogPlayer::loadLogFile(const QString& file)
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{
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logFile.setFileName(file);
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if (!logFile.open(QFile::ReadOnly))
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{
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QMessageBox msgBox;
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msgBox.setIcon(QMessageBox::Critical);
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msgBox.setText(tr("The selected logfile is unreadable"));
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msgBox.setInformativeText(tr("Please make sure that the file %1 is readable or select a different file").arg(file));
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msgBox.setStandardButtons(QMessageBox::Ok);
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msgBox.setDefaultButton(QMessageBox::Ok);
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msgBox.exec();
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logFile.setFileName("");
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}
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else
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{
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ui->logFileNameLabel->setText(tr("%1").arg(file));
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}
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}
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/**
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* This function is the "mainloop" of the log player, reading one line
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* and adjusting the mainloop timer to read the next line in time.
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* It might not perfectly match the timing of the log file,
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* but it will never induce a static drift into the log file replay.
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* For scientific logging, the use of onboard timestamps and the log
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* functionality of the line chart plot is recommended.
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*/
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void QGCMAVLinkLogPlayer::readLine()
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{
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// Ui update: Only every 20 messages
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// to prevent flickering and high CPU load
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// Update status label
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// Update progress bar
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}
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void QGCMAVLinkLogPlayer::changeEvent(QEvent *e)
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{
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QWidget::changeEvent(e);
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switch (e->type()) {
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case QEvent::LanguageChange:
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ui->retranslateUi(this);
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break;
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default:
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break;
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}
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}
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