void AVForm::open(const QString &devName, const VideoMode &mode)
{
QRect rect = mode.toRect();
Settings::getInstance().setCamVideoRes(rect);
Settings::getInstance().setCamVideoFPS(static_cast<quint16>(mode.FPS));
camera.open(devName, mode);
}
void AVForm::on_videoModescomboBox_currentIndexChanged(int index)
{
assert(0 <= index && index < videoModes.size());
int devIndex = videoDevCombobox->currentIndex();
assert(0 <= devIndex && devIndex < videoDeviceList.size());
QString devName = videoDeviceList[devIndex].first;
VideoMode mode = videoModes[index];
if (CameraDevice::isScreen(devName) && mode == VideoMode())
{
if (Settings::getInstance().getScreenGrabbed())
{
VideoMode mode(Settings::getInstance().getScreenRegion());
open(devName, mode);
return;
}
// note: grabber is self-managed and will destroy itself when done
ScreenshotGrabber* screenshotGrabber = new ScreenshotGrabber;
auto onGrabbed = [screenshotGrabber, devName, this] (QRect region)
{
VideoMode mode(region);
mode.width = mode.width / 2 * 2;
mode.height = mode.height / 2 * 2;
// Needed, if the virtual screen origin is the top left corner of the primary screen
QRect screen = QApplication::primaryScreen()->virtualGeometry();
mode.x += screen.x();
mode.y += screen.y();
Settings::getInstance().setScreenRegion(mode.toRect());
Settings::getInstance().setScreenGrabbed(true);
open(devName, mode);
};
connect(screenshotGrabber, &ScreenshotGrabber::regionChosen, this, onGrabbed, Qt::QueuedConnection);
screenshotGrabber->showGrabber();
return;
}
Settings::getInstance().setScreenGrabbed(false);
open(devName, mode);
}