diff options
Diffstat (limited to 'src/plugins/winrt/qwinrtcamerafocuscontrol.cpp')
| -rw-r--r-- | src/plugins/winrt/qwinrtcamerafocuscontrol.cpp | 273 |
1 files changed, 273 insertions, 0 deletions
diff --git a/src/plugins/winrt/qwinrtcamerafocuscontrol.cpp b/src/plugins/winrt/qwinrtcamerafocuscontrol.cpp new file mode 100644 index 00000000..7eda823d --- /dev/null +++ b/src/plugins/winrt/qwinrtcamerafocuscontrol.cpp @@ -0,0 +1,273 @@ +/**************************************************************************** +** +** Copyright (C) 2015 The Qt Company Ltd and/or its subsidiary(-ies). +** Contact: http://www.qt.io/licensing/ +** +** This file is part of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL3$ +** 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 http://www.qt.io/terms-conditions. For further +** information use the contact form at http://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.LGPLv3 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.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 later as published by the Free +** Software Foundation and appearing in the file LICENSE.GPL included in +** the packaging of this file. Please review the following information to +** ensure the GNU General Public License version 2.0 requirements will be +** met: http://www.gnu.org/licenses/gpl-2.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qwinrtcamerafocuscontrol.h" +#include "qwinrtcameraimagecapturecontrol.h" +#include "qwinrtcameracontrol.h" + +QT_BEGIN_NAMESPACE + +class QWinRTCameraFocusControlPrivate +{ +public: + QCameraFocus::FocusModes focusModes; + QCameraFocus::FocusModes supportedFocusModes; + QCameraFocus::FocusPointMode focusPointMode; + QSet<QCameraFocus::FocusPointMode> supportedFocusPointModes; + QPointF focusPoint; + bool focusModeInitialized; + bool focusPointModeInitialized; + bool imageCaptureIdle; +}; + +QWinRTCameraFocusControl::QWinRTCameraFocusControl(QWinRTCameraControl *parent) + : QCameraFocusControl(parent), d_ptr(new QWinRTCameraFocusControlPrivate) +{ + Q_D(QWinRTCameraFocusControl); + d->focusModeInitialized = false; + d->focusPointModeInitialized = false; + d->focusModes = QCameraFocus::ContinuousFocus; + d->focusPointMode = QCameraFocus::FocusPointAuto; + d->imageCaptureIdle = true; + QWinRTCameraImageCaptureControl *imageCaptureControl = static_cast<QWinRTCameraImageCaptureControl *>(parent->imageCaptureControl()); + Q_ASSERT(imageCaptureControl); + connect(imageCaptureControl, &QWinRTCameraImageCaptureControl::captureQueueChanged, + this, &QWinRTCameraFocusControl::imageCaptureQueueChanged, Qt::QueuedConnection); +} + +QCameraFocus::FocusModes QWinRTCameraFocusControl::focusMode() const +{ + Q_D(const QWinRTCameraFocusControl); + return d->focusModes; +} + +void QWinRTCameraFocusControl::setFocusMode(QCameraFocus::FocusModes modes) +{ + QMetaObject::invokeMethod(this, "applyFocusMode", Qt::QueuedConnection, Q_ARG(QCameraFocus::FocusModes, modes)); +} + +bool QWinRTCameraFocusControl::isFocusModeSupported(QCameraFocus::FocusModes modes) const +{ + Q_D(const QWinRTCameraFocusControl); + return (d->focusModeInitialized && modes) ? !((d->supportedFocusModes & modes) ^ modes) : false; +} + +QCameraFocus::FocusPointMode QWinRTCameraFocusControl::focusPointMode() const +{ + Q_D(const QWinRTCameraFocusControl); + return d->focusPointMode; +} + +void QWinRTCameraFocusControl::setFocusPointMode(QCameraFocus::FocusPointMode mode) +{ + QMetaObject::invokeMethod(this, "applyFocusPointMode", Qt::QueuedConnection, Q_ARG(QCameraFocus::FocusPointMode, mode)); +} + +bool QWinRTCameraFocusControl::isFocusPointModeSupported(QCameraFocus::FocusPointMode mode) const +{ + Q_D(const QWinRTCameraFocusControl); + return d->supportedFocusPointModes.contains(mode); +} + +QPointF QWinRTCameraFocusControl::customFocusPoint() const +{ + Q_D(const QWinRTCameraFocusControl); + return d->focusPoint; +} + +void QWinRTCameraFocusControl::setCustomFocusPoint(const QPointF &point) +{ + QMetaObject::invokeMethod(this, "applyFocusCustomPoint", Qt::QueuedConnection, Q_ARG(const QPointF, point)); +} + +QCameraFocusZoneList QWinRTCameraFocusControl::focusZones() const +{ + return QCameraFocusZoneList(); +} + +void QWinRTCameraFocusControl::setSupportedFocusMode(QCameraFocus::FocusModes modes) +{ + Q_D(QWinRTCameraFocusControl); + d->supportedFocusModes = modes; + d->focusModeInitialized = true; + if (isFocusModeSupported(d->focusModes)) + return; + d->focusModes = 0; + if (!modes) { + emit focusModeChanged(d->focusModes); + return; + } + if (isFocusModeSupported(QCameraFocus::ContinuousFocus)) + d->focusModes = QCameraFocus::ContinuousFocus; + else if (isFocusModeSupported(QCameraFocus::AutoFocus)) + d->focusModes = QCameraFocus::AutoFocus; + else if (isFocusModeSupported(QCameraFocus::ManualFocus)) + d->focusModes = QCameraFocus::ManualFocus; + emit focusModeChanged(d->focusModes); +} + +void QWinRTCameraFocusControl::setSupportedFocusPointMode(const QSet<QCameraFocus::FocusPointMode> &supportedFocusPointModes) +{ + Q_D(QWinRTCameraFocusControl); + d->supportedFocusPointModes = supportedFocusPointModes; + d->focusPointModeInitialized = true; + + if (supportedFocusPointModes.isEmpty()) { + if (d->focusPointMode != QCameraFocus::FocusPointAuto) { + d->focusPointMode = QCameraFocus::FocusPointAuto; + emit focusPointModeChanged(d->focusPointMode); + } + return; + } + + if (isFocusPointModeSupported(d->focusPointMode)) + return; + + if (isFocusPointModeSupported(QCameraFocus::FocusPointCenter)) + d->focusPointMode = QCameraFocus::FocusPointCenter; + else if (isFocusPointModeSupported(QCameraFocus::FocusPointAuto)) + d->focusPointMode = QCameraFocus::FocusPointAuto; + else if (isFocusPointModeSupported(QCameraFocus::FocusPointCustom)) + d->focusPointMode = QCameraFocus::FocusPointCustom; + else if (isFocusPointModeSupported(QCameraFocus::FocusPointFaceDetection)) + d->focusPointMode = QCameraFocus::FocusPointFaceDetection; + emit focusPointModeChanged(d->focusPointMode); +} + +void QWinRTCameraFocusControl::imageCaptureQueueChanged(bool isEmpty) +{ + Q_D(QWinRTCameraFocusControl); + d->imageCaptureIdle = isEmpty; +} + +void QWinRTCameraFocusControl::applyFocusCustomPoint(const QPointF &point) +{ + Q_D(QWinRTCameraFocusControl); + if (d->focusPointMode != QCameraFocus::FocusPointCustom) { + QWinRTCameraControl *cameraControl = static_cast<QWinRTCameraControl *>(parent()); + Q_ASSERT(cameraControl); + cameraControl->emitError(QCamera::InvalidRequestError, QStringLiteral("Custom focus point can be set only in FocusPointCustom focus mode.")); + return; + } + if (d->focusPoint == point) + return; + if (changeFocusCustomPoint(point)) { + d->focusPoint = point; + emit customFocusPointChanged(point); + } +} + +void QWinRTCameraFocusControl::applyFocusMode(QCameraFocus::FocusModes modes) +{ + Q_D(QWinRTCameraFocusControl); + if (d->focusModes == modes) + return; + QWinRTCameraControl *cameraControl = static_cast<QWinRTCameraControl *>(parent()); + Q_ASSERT(cameraControl); + if (!modes) { + cameraControl->emitError(QCamera::InvalidRequestError, QStringLiteral("Can't set empty camera focus modes.")); + return; + } + if (!d->focusModeInitialized) { + d->focusModes = modes; + emit focusModeChanged(modes); + return; + } + if (!isFocusModeSupported(modes)) { + cameraControl->emitError(QCamera::NotSupportedFeatureError, QStringLiteral("Unsupported camera focus modes.")); + return; + } + if (modes.testFlag(QCameraFocus::ContinuousFocus)) { + if (QCameraFocus::FocusPointCustom == d->focusPointMode) { + cameraControl->emitError(QCamera::NotSupportedFeatureError, + QStringLiteral("Unsupported camera focus modes: ContinuousFocus with FocusPointCustom.")); + return; + } else if (!d->imageCaptureIdle) { + cameraControl->emitError(QCamera::NotSupportedFeatureError, + QStringLiteral("Can't set ContinuousFocus camera focus mode while capturing image.")); + return; + } + } + if (!cameraControl->setFocus(modes)) + return; + if (modes.testFlag(QCameraFocus::ContinuousFocus) || d->focusModes.testFlag(QCameraFocus::ContinuousFocus)) + cameraControl->focus(); + d->focusModes = modes; + emit focusModeChanged(modes); +} + +void QWinRTCameraFocusControl::applyFocusPointMode(QCameraFocus::FocusPointMode mode) +{ + Q_D(QWinRTCameraFocusControl); + if (d->focusPointMode == mode) + return; + + if (!d->focusModeInitialized) { + d->focusPointMode = mode; + emit focusPointModeChanged(mode); + return; + } + QWinRTCameraControl *cameraControl = static_cast<QWinRTCameraControl *>(parent()); + Q_ASSERT(cameraControl); + if (!d->supportedFocusPointModes.contains(mode)) { + cameraControl->emitError(QCamera::NotSupportedFeatureError, QStringLiteral("Unsupported camera point focus mode.")); + return; + } + if (QCameraFocus::FocusPointCenter == mode || QCameraFocus::FocusPointAuto == mode) + d->focusPoint = QPointF(0.5, 0.5); + // Don't apply focus point focus settings if camera is in continuous focus mode + if (!d->focusModes.testFlag(QCameraFocus::ContinuousFocus)) { + changeFocusCustomPoint(d->focusPoint); + } else if (QCameraFocus::FocusPointCustom == mode) { + cameraControl->emitError(QCamera::NotSupportedFeatureError, QStringLiteral("Unsupported camera focus modes: ContinuousFocus with FocusPointCustom.")); + return; + } + d->focusPointMode = mode; + emit focusPointModeChanged(mode); +} + +bool QWinRTCameraFocusControl::changeFocusCustomPoint(const QPointF &point) +{ + Q_D(QWinRTCameraFocusControl); + if (!d->focusPointModeInitialized || point.isNull()) + return true; + QWinRTCameraControl *cameraControl = static_cast<QWinRTCameraControl *>(parent()); + Q_ASSERT(cameraControl); + cameraControl->clearFocusPoint(); + return cameraControl->setFocusPoint(point); +} + +QT_END_NAMESPACE |