bool GPhotoExposureControl::setValue(QCameraExposureControl::ExposureParameter parameter, const QVariant &value)
{
m_requestedValues[parameter] = value;
emit requestedValueChanged(parameter);
// Try to set parameters only on loaded camera
if (m_state == QCamera::UnloadedState)
return false;
if (parameter == ExposureCompensation) {
bool result = m_session->setParameter("exposurecompensation", value);
if (result) {
emit actualValueChanged(parameter);
return true;
}
} else if (parameter == ISO) {
QVariant v = value;
if (!v.isValid())
v = -1;
bool result = m_session->setParameter("iso", v);
if (result) {
emit actualValueChanged(parameter);
return true;
}
} else {
qWarning() << "Currently unsupported parameter" << parameter << "change requested";
}
return false;
}
bool CameraBinExposure::setValue(ExposureParameter parameter, const QVariant& value)
{
QVariant oldValue = actualValue(parameter);
switch (parameter) {
case QCameraExposureControl::ExposureCompensation:
gst_photography_set_ev_compensation(m_session->photography(), value.toReal());
break;
case QCameraExposureControl::ISO:
gst_photography_set_iso_speed(m_session->photography(), value.toInt());
break;
case QCameraExposureControl::Aperture:
gst_photography_set_aperture(m_session->photography(), guint(value.toReal()*1000000));
break;
case QCameraExposureControl::ShutterSpeed:
gst_photography_set_exposure(m_session->photography(), guint(value.toReal()*1000000));
break;
case QCameraExposureControl::ExposureMode:
{
QCameraExposure::ExposureMode mode = QCameraExposure::ExposureMode(value.toInt());
GstSceneMode sceneMode;
gst_photography_get_scene_mode(m_session->photography(), &sceneMode);
switch (mode) {
case QCameraExposure::ExposureManual:
sceneMode = GST_PHOTOGRAPHY_SCENE_MODE_MANUAL;
break;
case QCameraExposure::ExposurePortrait:
sceneMode = GST_PHOTOGRAPHY_SCENE_MODE_PORTRAIT;
break;
case QCameraExposure::ExposureSports:
sceneMode = GST_PHOTOGRAPHY_SCENE_MODE_SPORT;
break;
case QCameraExposure::ExposureNight:
sceneMode = GST_PHOTOGRAPHY_SCENE_MODE_NIGHT;
break;
case QCameraExposure::ExposureAuto:
sceneMode = GST_PHOTOGRAPHY_SCENE_MODE_AUTO;
break;
default:
break;
}
gst_photography_set_scene_mode(m_session->photography(), sceneMode);
break;
}
default:
return false;
}
if (!qFuzzyCompare(m_requestedValues.value(parameter).toReal(), value.toReal())) {
m_requestedValues[parameter] = value;
emit requestedValueChanged(parameter);
}
QVariant newValue = actualValue(parameter);
if (!qFuzzyCompare(oldValue.toReal(), newValue.toReal()))
emit actualValueChanged(parameter);
return true;
}
