dragonpilot - 基於 openpilot 的開源駕駛輔助系統
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#include "tools/cabana/videowidget.h"
#include <QButtonGroup>
#include <QDateTime>
#include <QHBoxLayout>
#include <QLabel>
#include <QPushButton>
#include <QTimer>
#include <QVBoxLayout>
#include "tools/cabana/parser.h"
inline QString formatTime(int seconds) {
return QDateTime::fromTime_t(seconds).toString(seconds > 60 * 60 ? "hh::mm::ss" : "mm::ss");
}
VideoWidget::VideoWidget(QWidget *parent) : QWidget(parent) {
QVBoxLayout *main_layout = new QVBoxLayout(this);
cam_widget = new CameraViewWidget("camerad", VISION_STREAM_ROAD, true, this);
cam_widget->setFixedSize(640, 480);
main_layout->addWidget(cam_widget);
// slider controls
QHBoxLayout *slider_layout = new QHBoxLayout();
QLabel *time_label = new QLabel("00:00");
slider_layout->addWidget(time_label);
slider = new QSlider(Qt::Horizontal, this);
// slider->setFixedWidth(640);
slider->setSingleStep(1);
slider->setMaximum(parser->replay->totalSeconds());
QObject::connect(slider, &QSlider::sliderReleased, [=]() {
time_label->setText(formatTime(slider->value()));
parser->replay->seekTo(slider->value(), false);
});
slider_layout->addWidget(slider);
QLabel *total_time_label = new QLabel(formatTime(parser->replay->totalSeconds()));
slider_layout->addWidget(total_time_label);
main_layout->addLayout(slider_layout);
// btn controls
QHBoxLayout *control_layout = new QHBoxLayout();
QPushButton *play = new QPushButton("");
play->setStyleSheet("font-weight:bold");
QObject::connect(play, &QPushButton::clicked, [=]() {
bool is_paused = parser->replay->isPaused();
play->setText(is_paused ? "" : "");
parser->replay->pause(!is_paused);
});
control_layout->addWidget(play);
QButtonGroup *group = new QButtonGroup(this);
group->setExclusive(true);
for (float speed : {0.1, 0.5, 1., 2.}) {
QPushButton *btn = new QPushButton(QString("%1x").arg(speed), this);
btn->setCheckable(true);
QObject::connect(btn, &QPushButton::clicked, [=]() {
parser->replay->setSpeed(speed);
});
control_layout->addWidget(btn);
group->addButton(btn);
if (speed == 1.0) btn->setChecked(true);
}
main_layout->addLayout(control_layout);
QTimer *timer = new QTimer(this);
timer->setInterval(1000);
timer->callOnTimeout([=]() {
int current_seconds = parser->replay->currentSeconds();
time_label->setText(formatTime(current_seconds));
if (!slider->isSliderDown()) {
slider->setValue(current_seconds);
}
});
timer->start();
}