| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd and/or its subsidiary(-ies). |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** 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. |
| ** |
| ** GNU Lesser General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU Lesser |
| ** General Public License version 3 as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.LGPL3 included in the |
| ** packaging of this file. Please review the following information to |
| ** ensure the GNU Lesser General Public License version 3 requirements |
| ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or (at your option) the GNU General |
| ** Public license version 3 or any later version approved by the KDE Free |
| ** Qt Foundation. The licenses are as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 |
| ** included in the packaging of this file. Please review the following |
| ** information to ensure the GNU General Public License requirements will |
| ** be met: https://www.gnu.org/licenses/gpl-2.0.html and |
| ** https://www.gnu.org/licenses/gpl-3.0.html. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| #include <QCameraFocusControl> |
| |
| #include "qwinrtcameralockscontrol.h" |
| #include "qwinrtcameracontrol.h" |
| |
| QT_BEGIN_NAMESPACE |
| |
| QWinRTCameraLocksControl::QWinRTCameraLocksControl(QObject *parent) |
| : QCameraLocksControl(parent) |
| , m_supportedLocks(QCamera::NoLock) |
| , m_focusLockStatus(QCamera::Unlocked) |
| { |
| } |
| |
| QCamera::LockTypes QWinRTCameraLocksControl::supportedLocks() const |
| { |
| return m_supportedLocks; |
| } |
| |
| QCamera::LockStatus QWinRTCameraLocksControl::lockStatus(QCamera::LockType lock) const |
| { |
| switch (lock) { |
| case QCamera::LockFocus: |
| return m_focusLockStatus; |
| case QCamera::LockExposure: |
| case QCamera::LockWhiteBalance: |
| default: |
| return QCamera::Unlocked; |
| } |
| } |
| |
| void QWinRTCameraLocksControl::searchAndLock(QCamera::LockTypes locks) |
| { |
| QWinRTCameraControl *cameraControl = qobject_cast<QWinRTCameraControl *>(parent()); |
| Q_ASSERT(cameraControl); |
| if (cameraControl->state() != QCamera::ActiveState) |
| return; |
| else if (locks.testFlag(QCamera::LockFocus)) |
| QMetaObject::invokeMethod(this, "searchAndLockFocus", Qt::QueuedConnection); |
| else |
| cameraControl->emitError(QCamera::InvalidRequestError, QStringLiteral("Unsupported camera lock type.")); |
| } |
| |
| void QWinRTCameraLocksControl::unlock(QCamera::LockTypes locks) |
| { |
| if (locks.testFlag(QCamera::LockFocus)) |
| QMetaObject::invokeMethod(this, "unlockFocus", Qt::QueuedConnection); |
| } |
| |
| void QWinRTCameraLocksControl::initialize() |
| { |
| QWinRTCameraControl *cameraControl = qobject_cast<QWinRTCameraControl *>(parent()); |
| Q_ASSERT(cameraControl); |
| QCameraFocusControl *focusControl = cameraControl->cameraFocusControl(); |
| Q_ASSERT(focusControl); |
| if (focusControl->isFocusModeSupported(QCameraFocus::AutoFocus)) |
| m_supportedLocks |= QCamera::LockFocus; |
| } |
| |
| void QWinRTCameraLocksControl::searchAndLockFocus() |
| { |
| if (QCamera::Locked == m_focusLockStatus) |
| unlockFocus(); |
| QWinRTCameraControl *cameraControl = qobject_cast<QWinRTCameraControl *>(parent()); |
| Q_ASSERT(cameraControl); |
| QCameraFocusControl *focusControl = cameraControl->cameraFocusControl(); |
| Q_ASSERT(focusControl); |
| if (focusControl->focusMode().testFlag(QCameraFocus::ContinuousFocus)) { |
| cameraControl->emitError(QCamera::NotSupportedFeatureError, QStringLiteral("Camera can't lock focus in continuous focus mode.")); |
| } else { |
| m_focusLockStatus = QCamera::Searching; |
| emit lockStatusChanged(QCamera::LockFocus, m_focusLockStatus, QCamera::LockAcquired); |
| if (cameraControl->focus()) { |
| m_focusLockStatus = cameraControl->lockFocus() ? QCamera::Locked : QCamera::Unlocked; |
| emit lockStatusChanged(QCamera::LockFocus, m_focusLockStatus, QCamera::LockAcquired); |
| } |
| } |
| } |
| |
| void QWinRTCameraLocksControl::unlockFocus() |
| { |
| if (QCamera::Unlocked == m_focusLockStatus) |
| return; |
| QWinRTCameraControl *cameraControl = qobject_cast<QWinRTCameraControl *>(parent()); |
| Q_ASSERT(cameraControl); |
| m_focusLockStatus = cameraControl->unlockFocus() ? QCamera::Unlocked : QCamera::Locked; |
| emit lockStatusChanged(QCamera::LockFocus, m_focusLockStatus, QCamera::UserRequest); |
| } |
| |
| QT_END_NAMESPACE |