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/****************************************************************************
**
** 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 "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
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