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/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
**
**
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**
**
****************************************************************************/
#include "qandroidcameraflashcontrol.h"
#include "qandroidcamerasession.h"
#include "androidcamera.h"
QT_BEGIN_NAMESPACE
QAndroidCameraFlashControl::QAndroidCameraFlashControl(QAndroidCameraSession *session)
: QCameraFlashControl()
, m_session(session)
, m_flashMode(QCameraExposure::FlashOff)
{
connect(m_session, SIGNAL(opened()),
this, SLOT(onCameraOpened()));
}
QCameraExposure::FlashModes QAndroidCameraFlashControl::flashMode() const
{
return m_flashMode;
}
void QAndroidCameraFlashControl::setFlashMode(QCameraExposure::FlashModes mode)
{
if (!m_session->camera()) {
m_flashMode = mode;
return;
}
if (!isFlashModeSupported(mode))
return;
// if torch was enabled, it first needs to be turned off before setting another mode
if (m_flashMode == QCameraExposure::FlashVideoLight)
m_session->camera()->setFlashMode(QLatin1String("off"));
m_flashMode = mode;
QString flashMode;
if (mode.testFlag(QCameraExposure::FlashAuto))
flashMode = QLatin1String("auto");
else if (mode.testFlag(QCameraExposure::FlashOn))
flashMode = QLatin1String("on");
else if (mode.testFlag(QCameraExposure::FlashRedEyeReduction))
flashMode = QLatin1String("red-eye");
else if (mode.testFlag(QCameraExposure::FlashVideoLight))
flashMode = QLatin1String("torch");
else // FlashOff
flashMode = QLatin1String("off");
m_session->camera()->setFlashMode(flashMode);
}
bool QAndroidCameraFlashControl::isFlashModeSupported(QCameraExposure::FlashModes mode) const
{
return m_session->camera() ? m_supportedFlashModes.contains(mode) : false;
}
bool QAndroidCameraFlashControl::isFlashReady() const
{
// Android doesn't have an API for that
return true;
}
void QAndroidCameraFlashControl::onCameraOpened()
{
m_supportedFlashModes.clear();
QStringList flashModes = m_session->camera()->getSupportedFlashModes();
for (int i = 0; i < flashModes.size(); ++i) {
const QString &flashMode = flashModes.at(i);
if (flashMode == QLatin1String("off"))
m_supportedFlashModes << QCameraExposure::FlashOff;
else if (flashMode == QLatin1String("auto"))
m_supportedFlashModes << QCameraExposure::FlashAuto;
else if (flashMode == QLatin1String("on"))
m_supportedFlashModes << QCameraExposure::FlashOn;
else if (flashMode == QLatin1String("red-eye"))
m_supportedFlashModes << QCameraExposure::FlashRedEyeReduction;
else if (flashMode == QLatin1String("torch"))
m_supportedFlashModes << QCameraExposure::FlashVideoLight;
}
if (!m_supportedFlashModes.contains(m_flashMode))
m_flashMode = QCameraExposure::FlashOff;
setFlashMode(m_flashMode);
}
QT_END_NAMESPACE
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