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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Qt Mobility Components.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 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 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtCore/qstring.h>
#include <qcamerafocus.h> // FocusMode
#include "s60cameralockscontrol.h"
#include "s60cameraservice.h"
#include "s60imagecapturesession.h"
#include "s60camerasettings.h"
#include "s60camerafocuscontrol.h"
S60CameraLocksControl::S60CameraLocksControl(QObject *parent) :
QCameraLocksControl(parent)
{
}
S60CameraLocksControl::S60CameraLocksControl(S60CameraService *service,
S60ImageCaptureSession *session,
QObject *parent) :
QCameraLocksControl(parent),
m_session(0),
m_service(0),
m_advancedSettings(0),
m_focusControl(0),
m_focusStatus(QCamera::Unlocked),
m_exposureStatus(QCamera::Unlocked),
m_whiteBalanceStatus(QCamera::Unlocked)
{
m_session = session;
m_service = service;
m_focusControl = qobject_cast<S60CameraFocusControl *>(m_service->requestControl(QCameraFocusControl_iid));
connect(m_session, SIGNAL(advancedSettingChanged()), this, SLOT(resetAdvancedSetting()));
m_advancedSettings = m_session->advancedSettings();
// Exposure Lock Signals
if (m_advancedSettings)
connect(m_advancedSettings, SIGNAL(exposureStatusChanged(QCamera::LockStatus, QCamera::LockChangeReason)),
this, SLOT(exposureStatusChanged(QCamera::LockStatus, QCamera::LockChangeReason)));
// Focus Lock Signal
// * S60 3.2 and later (through Adv. Settings)
if (m_advancedSettings)
connect(m_advancedSettings, SIGNAL(focusStatusChanged(QCamera::LockStatus, QCamera::LockChangeReason)),
this, SLOT(focusStatusChanged(QCamera::LockStatus, QCamera::LockChangeReason)));
// * S60 3.1 (through ImageSession)
connect(m_session, SIGNAL(focusStatusChanged(QCamera::LockStatus, QCamera::LockChangeReason)),
this, SLOT(focusStatusChanged(QCamera::LockStatus, QCamera::LockChangeReason)));
}
S60CameraLocksControl::~S60CameraLocksControl()
{
m_advancedSettings = 0;
}
QCamera::LockTypes S60CameraLocksControl::supportedLocks() const
{
QCamera::LockTypes supportedLocks = 0;
#ifdef S60_CAM_AUTOFOCUS_SUPPORT // S60 3.1
if (m_session)
if (m_session->isFocusSupported())
supportedLocks |= QCamera::LockFocus;
#else // S60 3.2 and later
if (m_advancedSettings) {
QCameraFocus::FocusModes supportedFocusModes = m_advancedSettings->supportedFocusModes();
if (supportedFocusModes & QCameraFocus::AutoFocus)
supportedLocks |= QCamera::LockFocus;
// Exposure/WhiteBalance Locking not implemented in Symbian
// supportedLocks |= QCamera::LockExposure;
// supportedLocks |= QCamera::LockWhiteBalance;
}
#endif // S60_CAM_AUTOFOCUS_SUPPORT
return supportedLocks;
}
QCamera::LockStatus S60CameraLocksControl::lockStatus(QCamera::LockType lock) const
{
switch (lock) {
case QCamera::LockExposure:
return m_exposureStatus;
case QCamera::LockWhiteBalance:
return m_whiteBalanceStatus;
case QCamera::LockFocus:
return m_focusStatus;
default:
// Unsupported lock
return QCamera::Unlocked;
}
}
void S60CameraLocksControl::searchAndLock(QCamera::LockTypes locks)
{
if (locks & QCamera::LockExposure) {
// Not implemented in Symbian
//startExposureLocking();
}
if (locks & QCamera::LockWhiteBalance) {
// Not implemented in Symbian
}
if (locks & QCamera::LockFocus)
startFocusing();
}
void S60CameraLocksControl::unlock(QCamera::LockTypes locks)
{
if (locks & QCamera::LockExposure) {
// Not implemented in Symbian
//cancelExposureLocking();
}
if (locks & QCamera::LockFocus)
cancelFocusing();
}
void S60CameraLocksControl::resetAdvancedSetting()
{
m_advancedSettings = m_session->advancedSettings();
// Reconnect Lock Signals
if (m_advancedSettings) {
connect(m_advancedSettings, SIGNAL(exposureStatusChanged(QCamera::LockStatus, QCamera::LockChangeReason)),
this, SLOT(exposureStatusChanged(QCamera::LockStatus, QCamera::LockChangeReason)));
connect(m_advancedSettings, SIGNAL(focusStatusChanged(QCamera::LockStatus, QCamera::LockChangeReason)),
this, SLOT(focusStatusChanged(QCamera::LockStatus, QCamera::LockChangeReason)));
}
}
void S60CameraLocksControl::exposureStatusChanged(QCamera::LockStatus status,
QCamera::LockChangeReason reason)
{
if(status != m_exposureStatus) {
m_exposureStatus = status;
emit lockStatusChanged(QCamera::LockExposure, status, reason);
}
}
void S60CameraLocksControl::focusStatusChanged(QCamera::LockStatus status,
QCamera::LockChangeReason reason)
{
if(status != m_focusStatus) {
m_focusStatus = status;
emit lockStatusChanged(QCamera::LockFocus, status, reason);
}
}
void S60CameraLocksControl::startFocusing()
{
#ifndef S60_CAM_AUTOFOCUS_SUPPORT // S60 3.2 or later
// Focusing is triggered on Symbian by setting the FocusType corresponding
// to the FocusMode set to FocusControl
if (m_focusControl) {
if (m_advancedSettings) {
m_advancedSettings->startFocusing();
m_focusStatus = QCamera::Searching;
emit lockStatusChanged(QCamera::LockFocus, QCamera::Searching, QCamera::UserRequest);
}
else
emit lockStatusChanged(QCamera::LockFocus, QCamera::Unlocked, QCamera::LockFailed);
}
else
emit lockStatusChanged(QCamera::LockFocus, QCamera::Unlocked, QCamera::LockFailed);
#else // S60 3.1
if (m_focusControl && m_focusControl->focusMode() == QCameraFocus::AutoFocus) {
m_session->startFocus();
m_focusStatus = QCamera::Searching;
emit lockStatusChanged(QCamera::LockFocus, QCamera::Searching, QCamera::UserRequest);
}
else
emit lockStatusChanged(QCamera::LockFocus, QCamera::Unlocked, QCamera::LockFailed);
#endif // S60_CAM_AUTOFOCUS_SUPPORT
}
void S60CameraLocksControl::cancelFocusing()
{
if (m_focusStatus == QCamera::Unlocked)
return;
#ifndef S60_CAM_AUTOFOCUS_SUPPORT // S60 3.2 or later
if (m_advancedSettings) {
m_advancedSettings->cancelFocusing();
m_focusStatus = QCamera::Unlocked;
emit lockStatusChanged(QCamera::LockFocus, QCamera::Unlocked, QCamera::UserRequest);
}
else
emit lockStatusChanged(QCamera::LockFocus, QCamera::Unlocked, QCamera::LockFailed);
#else // S60 3.1
m_session->cancelFocus();
m_focusStatus = QCamera::Unlocked;
emit lockStatusChanged(QCamera::LockFocus, QCamera::Unlocked, QCamera::UserRequest);
#endif // S60_CAM_AUTOFOCUS_SUPPORT
}
void S60CameraLocksControl::startExposureLocking()
{
if (m_advancedSettings) {
m_advancedSettings->lockExposure(true);
m_exposureStatus = QCamera::Searching;
emit lockStatusChanged(QCamera::LockExposure, QCamera::Searching, QCamera::UserRequest);
}
else
emit lockStatusChanged(QCamera::LockExposure, QCamera::Unlocked, QCamera::LockFailed);
}
void S60CameraLocksControl::cancelExposureLocking()
{
if (m_exposureStatus == QCamera::Unlocked)
return;
if (m_advancedSettings) {
m_advancedSettings->lockExposure(false);
m_exposureStatus = QCamera::Unlocked;
emit lockStatusChanged(QCamera::LockExposure, QCamera::Unlocked, QCamera::UserRequest);
}
else
emit lockStatusChanged(QCamera::LockExposure, QCamera::Unlocked, QCamera::LockFailed);
}
// End of file
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