diff options
Diffstat (limited to 'src/plugins/symbian/ecam/s60cameraexposurecontrol.cpp')
| -rw-r--r-- | src/plugins/symbian/ecam/s60cameraexposurecontrol.cpp | 584 |
1 files changed, 584 insertions, 0 deletions
diff --git a/src/plugins/symbian/ecam/s60cameraexposurecontrol.cpp b/src/plugins/symbian/ecam/s60cameraexposurecontrol.cpp new file mode 100644 index 000000000..9ebdd2c6e --- /dev/null +++ b/src/plugins/symbian/ecam/s60cameraexposurecontrol.cpp @@ -0,0 +1,584 @@ +/**************************************************************************** +** +** 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. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, 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. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtCore/qstring.h> + +#include "s60cameraexposurecontrol.h" +#include "s60cameraservice.h" +#include "s60imagecapturesession.h" + +S60CameraExposureControl::S60CameraExposureControl(QObject *parent) : + QCameraExposureControl(parent) +{ +} + +S60CameraExposureControl::S60CameraExposureControl(S60ImageCaptureSession *session, QObject *parent) : + QCameraExposureControl(parent), + m_session(0), + m_service(0), + m_advancedSettings(0), + m_exposureMode(QCameraExposure::ExposureAuto), + m_meteringMode(QCameraExposure::MeteringMatrix) +{ + m_session = session; + + connect(m_session, SIGNAL(advancedSettingChanged()), this, SLOT(resetAdvancedSetting())); + m_advancedSettings = m_session->advancedSettings(); + + if (m_advancedSettings) { + connect(m_advancedSettings, SIGNAL(apertureChanged()), this, SLOT(apertureChanged())); + connect(m_advancedSettings, SIGNAL(apertureRangeChanged()), this, SLOT(apertureRangeChanged())); + connect(m_advancedSettings, SIGNAL(shutterSpeedChanged()), this, SLOT(shutterSpeedChanged())); + connect(m_advancedSettings, SIGNAL(isoSensitivityChanged()), this, SLOT(isoSensitivityChanged())); + connect(m_advancedSettings, SIGNAL(evChanged()), this, SLOT(evChanged())); + } +} + +S60CameraExposureControl::~S60CameraExposureControl() +{ + m_advancedSettings = 0; +} + +void S60CameraExposureControl::resetAdvancedSetting() +{ + m_advancedSettings = m_session->advancedSettings(); + if (m_advancedSettings) { + connect(m_advancedSettings, SIGNAL(apertureChanged()), this, SLOT(apertureChanged())); + connect(m_advancedSettings, SIGNAL(apertureRangeChanged()), this, SLOT(apertureRangeChanged())); + connect(m_advancedSettings, SIGNAL(shutterSpeedChanged()), this, SLOT(shutterSpeedChanged())); + connect(m_advancedSettings, SIGNAL(isoSensitivityChanged()), this, SLOT(isoSensitivityChanged())); + connect(m_advancedSettings, SIGNAL(evChanged()), this, SLOT(evChanged())); + } +} + +void S60CameraExposureControl::apertureChanged() +{ + emit exposureParameterChanged(QCameraExposureControl::Aperture); +} + +void S60CameraExposureControl::apertureRangeChanged() +{ + emit exposureParameterRangeChanged(QCameraExposureControl::Aperture); +} + +void S60CameraExposureControl::shutterSpeedChanged() +{ + emit exposureParameterChanged(QCameraExposureControl::ShutterSpeed); +} + +void S60CameraExposureControl::isoSensitivityChanged() +{ + emit exposureParameterChanged(QCameraExposureControl::ISO); +} + +void S60CameraExposureControl::evChanged() +{ + emit exposureParameterChanged(QCameraExposureControl::ExposureCompensation); +} + +QCameraExposure::ExposureMode S60CameraExposureControl::exposureMode() const +{ + return m_session->exposureMode(); +} + +void S60CameraExposureControl::setExposureMode(QCameraExposure::ExposureMode mode) +{ + if (isExposureModeSupported(mode)) { + m_exposureMode = mode; + m_session->setExposureMode(m_exposureMode); + return; + } + + m_session->setError(KErrNotSupported, tr("Requested exposure mode is not supported.")); +} + +bool S60CameraExposureControl::isExposureModeSupported(QCameraExposure::ExposureMode mode) const +{ + if (m_session->isExposureModeSupported(mode)) + return true; + + return false; +} + +QCameraExposure::MeteringMode S60CameraExposureControl::meteringMode() const +{ + if (m_advancedSettings) + return m_advancedSettings->meteringMode(); + + return QCameraExposure::MeteringMode(); +} + +void S60CameraExposureControl::setMeteringMode(QCameraExposure::MeteringMode mode) +{ + if (m_advancedSettings) { + if (isMeteringModeSupported(mode)) { + m_meteringMode = mode; + m_advancedSettings->setMeteringMode(mode); + return; + } + } + + m_session->setError(KErrNotSupported, tr("Requested metering mode is not supported.")); +} + +bool S60CameraExposureControl::isMeteringModeSupported(QCameraExposure::MeteringMode mode) const +{ + if (m_advancedSettings) + return m_advancedSettings->isMeteringModeSupported(mode); + + return false; +} + +bool S60CameraExposureControl::isParameterSupported(ExposureParameter parameter) const +{ + // Settings supported only if advanced settings available + if (m_advancedSettings) { + switch (parameter) { + case QCameraExposureControl::ISO: + if (m_advancedSettings->supportedIsoSensitivities().count() > 0) + return true; + else + return false; + case QCameraExposureControl::Aperture: + if (m_advancedSettings->supportedApertures().count() > 0) + return true; + else + return false; + case QCameraExposureControl::ShutterSpeed: + if (m_advancedSettings->supportedShutterSpeeds().count() > 0) + return true; + else + return false; + case QCameraExposureControl::ExposureCompensation: + if (m_advancedSettings->supportedExposureCompensationValues().count() > 0) + return true; + else + return false; + case QCameraExposureControl::FlashPower: + case QCameraExposureControl::FlashCompensation: + return false; + + default: + return false; + } + } + + return false; +} + +QVariant S60CameraExposureControl::exposureParameter(ExposureParameter parameter) const +{ + switch (parameter) { + case QCameraExposureControl::ISO: + return QVariant(isoSensitivity()); + case QCameraExposureControl::Aperture: + return QVariant(aperture()); + case QCameraExposureControl::ShutterSpeed: + return QVariant(shutterSpeed()); + case QCameraExposureControl::ExposureCompensation: + return QVariant(exposureCompensation()); + case QCameraExposureControl::FlashPower: + case QCameraExposureControl::FlashCompensation: + // Not supported in Symbian + return QVariant(); + + default: + // Not supported in Symbian + return QVariant(); + } +} + +QCameraExposureControl::ParameterFlags S60CameraExposureControl::exposureParameterFlags(ExposureParameter parameter) const +{ + QCameraExposureControl::ParameterFlags flags; + + /* + * ISO, ExposureCompensation: + * - Automatic/Manual + * - Read/Write + * - Discrete range + * + * Aperture, ShutterSpeed, FlashPower, FlashCompensation: + * - Not supported + */ + switch (parameter) { + case QCameraExposureControl::ISO: + case QCameraExposureControl::ExposureCompensation: + flags |= QCameraExposureControl::AutomaticValue; + break; + case QCameraExposureControl::Aperture: + case QCameraExposureControl::ShutterSpeed: + case QCameraExposureControl::FlashPower: + case QCameraExposureControl::FlashCompensation: + // Do nothing - no flags + break; + + default: + // Do nothing - no flags + break; + } + + return flags; +} + +QVariantList S60CameraExposureControl::supportedParameterRange(ExposureParameter parameter) const +{ + QVariantList valueList; + + if (m_advancedSettings) { + switch (parameter) { + case QCameraExposureControl::ISO: { + foreach (int iso, m_advancedSettings->supportedIsoSensitivities()) + valueList << QVariant(iso); + break; + } + case QCameraExposureControl::Aperture: { + foreach (qreal aperture, m_advancedSettings->supportedApertures()) + valueList << QVariant(aperture); + break; + } + case QCameraExposureControl::ShutterSpeed: { + foreach (qreal shutterSpeed, m_advancedSettings->supportedShutterSpeeds()) + valueList << QVariant(shutterSpeed); + break; + } + case QCameraExposureControl::ExposureCompensation: { + foreach (qreal ev, m_advancedSettings->supportedExposureCompensationValues()) + valueList << QVariant(ev); + break; + } + case QCameraExposureControl::FlashPower: + case QCameraExposureControl::FlashCompensation: + // Not supported in Symbian + break; + + default: + // Not supported in Symbian + break; + } + } + + return valueList; +} + +bool S60CameraExposureControl::setExposureParameter(ExposureParameter parameter, const QVariant& value) +{ + bool useDefaultValue = false; + + if (value.isNull()) + useDefaultValue = true; + + switch (parameter) { + case QCameraExposureControl::ISO: + if (useDefaultValue) { + setAutoIsoSensitivity(); + return false; + } + else + return setManualIsoSensitivity(value.toInt()); + + case QCameraExposureControl::Aperture: + if (useDefaultValue) { + setAutoAperture(); + return false; + } + else + return setManualAperture(value.toFloat()); + + case QCameraExposureControl::ShutterSpeed: + if (useDefaultValue) { + setAutoShutterSpeed(); + return false; + } + else + return setManualShutterSpeed(value.toFloat()); + + case QCameraExposureControl::ExposureCompensation: + if (useDefaultValue) { + setAutoExposureCompensation(); + return false; + } + else + return setManualExposureCompensation(value.toFloat()); + + case QCameraExposureControl::FlashPower: + return false; + case QCameraExposureControl::FlashCompensation: + return false; + + default: + // Not supported in Symbian + return false; + } +} + +QString S60CameraExposureControl::extendedParameterName(ExposureParameter parameter) +{ + switch (parameter) { + case QCameraExposureControl::ISO: + return QLatin1String("ISO Sensitivity"); + case QCameraExposureControl::Aperture: + return QLatin1String("Aperture"); + case QCameraExposureControl::ShutterSpeed: + return QLatin1String("Shutter Speed"); + case QCameraExposureControl::ExposureCompensation: + return QLatin1String("Exposure Compensation"); + case QCameraExposureControl::FlashPower: + return QLatin1String("Flash Power"); + case QCameraExposureControl::FlashCompensation: + return QLatin1String("Flash Compensation"); + + default: + return QString(); + } +} + +int S60CameraExposureControl::isoSensitivity() const +{ + if (m_advancedSettings) + return m_advancedSettings->isoSensitivity(); + return 0; +} + +bool S60CameraExposureControl::isIsoSensitivitySupported(const int iso) const +{ + if (m_advancedSettings && + m_advancedSettings->supportedIsoSensitivities().contains(iso)) + return true; + else + return false; +} + +bool S60CameraExposureControl::setManualIsoSensitivity(int iso) +{ + if (m_advancedSettings) { + if (isIsoSensitivitySupported(iso)) { + m_advancedSettings->setManualIsoSensitivity(iso); + return true; + } + } + + return false; +} + +void S60CameraExposureControl::setAutoIsoSensitivity() +{ + if (m_advancedSettings) + m_advancedSettings->setAutoIsoSensitivity(); +} + +qreal S60CameraExposureControl::aperture() const +{ + if (m_advancedSettings) + return m_advancedSettings->aperture(); + return 0.0; +} + +bool S60CameraExposureControl::isApertureSupported(const qreal aperture) const +{ + if (m_advancedSettings) { + QList<qreal> supportedValues = m_advancedSettings->supportedApertures(); + if(supportedValues.indexOf(aperture) != -1) + return true; + } + + return false; +} + +bool S60CameraExposureControl::setManualAperture(qreal aperture) +{ + if (m_advancedSettings) { + if (isApertureSupported(aperture)) { + m_advancedSettings->setManualAperture(aperture); + return true; + } else { + QList<qreal> supportedApertureValues = m_advancedSettings->supportedApertures(); + int minAperture = supportedApertureValues.first(); + int maxAperture = supportedApertureValues.last(); + + if (aperture < minAperture) { // Smaller than minimum + aperture = minAperture; + } else if (aperture > maxAperture) { // Bigger than maximum + aperture = maxAperture; + } else { // Find closest + int indexOfClosest = 0; + int smallestDiff = 100000000; // Sensible max diff + for(int i = 0; i < supportedApertureValues.count(); ++i) { + if((abs((aperture*100) - (supportedApertureValues[i]*100))) < smallestDiff) { + smallestDiff = abs((aperture*100) - (supportedApertureValues[i]*100)); + indexOfClosest = i; + } + } + aperture = supportedApertureValues[indexOfClosest]; + } + m_advancedSettings->setManualAperture(aperture); + } + } + + return false; +} + +void S60CameraExposureControl::setAutoAperture() +{ + // Not supported in Symbian +} + +qreal S60CameraExposureControl::shutterSpeed() const +{ + if (m_advancedSettings) + return m_advancedSettings->shutterSpeed(); + return 0.0; +} + +bool S60CameraExposureControl::isShutterSpeedSupported(const qreal seconds) const +{ + if (m_advancedSettings) { + QList<qreal> supportedValues = m_advancedSettings->supportedShutterSpeeds(); + if(supportedValues.indexOf(seconds) != -1) + return true; + } + + return false; +} + +bool S60CameraExposureControl::setManualShutterSpeed(qreal seconds) +{ + if (m_advancedSettings) { + if (isShutterSpeedSupported(seconds)) { + m_advancedSettings->setManualShutterSpeed(seconds); + return true; + } else { + QList<qreal> supportedShutterSpeeds = m_advancedSettings->supportedShutterSpeeds(); + + if (supportedShutterSpeeds.count() == 0) + return false; + + int minShutterSpeed = supportedShutterSpeeds.first(); + int maxShutterSpeed = supportedShutterSpeeds.last(); + + if (seconds < minShutterSpeed) { // Smaller than minimum + seconds = minShutterSpeed; + } else if (seconds > maxShutterSpeed) { // Bigger than maximum + seconds = maxShutterSpeed; + } else { // Find closest + int indexOfClosest = 0; + int smallestDiff = 100000000; // Sensible max diff + for(int i = 0; i < supportedShutterSpeeds.count(); ++i) { + if((abs((seconds*100) - (supportedShutterSpeeds[i]*100))) < smallestDiff) { + smallestDiff = abs((seconds*100) - (supportedShutterSpeeds[i]*100)); + indexOfClosest = i; + } + } + seconds = supportedShutterSpeeds[indexOfClosest]; + } + m_advancedSettings->setManualShutterSpeed(seconds); + } + } + + return false; +} + +void S60CameraExposureControl::setAutoShutterSpeed() +{ + // Not supported in Symbian +} + +qreal S60CameraExposureControl::exposureCompensation() const +{ + if (m_advancedSettings) + return m_advancedSettings->exposureCompensation(); + return 0.0; +} + +bool S60CameraExposureControl::isExposureCompensationSupported(const qreal ev) const +{ + if (m_advancedSettings) { + QList<qreal> supportedValues = m_advancedSettings->supportedExposureCompensationValues(); + if(supportedValues.indexOf(ev) != -1) + return true; + } + + return false; +} + +bool S60CameraExposureControl::setManualExposureCompensation(qreal ev) +{ + if (m_advancedSettings) { + if (isExposureCompensationSupported(ev)) { + m_advancedSettings->setExposureCompensation(ev); + return true; + } else { + QList<qreal> supportedEVs = m_advancedSettings->supportedExposureCompensationValues(); + + if (supportedEVs.count() == 0) + return false; + + int minEV = supportedEVs.first(); + int maxEV = supportedEVs.last(); + + if (ev < minEV) { // Smaller than minimum + ev = minEV; + } else if (ev > maxEV) { // Bigger than maximum + ev = maxEV; + } else { // Find closest + int indexOfClosest = 0; + int smallestDiff = 100000000; // Sensible max diff + for(int i = 0; i < supportedEVs.count(); ++i) { + if((abs((ev*100) - (supportedEVs[i]*100))) < smallestDiff) { + smallestDiff = abs((ev*100) - (supportedEVs[i]*100)); + indexOfClosest = i; + } + } + ev = supportedEVs[indexOfClosest]; + } + m_advancedSettings->setExposureCompensation(ev); + } + } + + return false; +} + +void S60CameraExposureControl::setAutoExposureCompensation() +{ + // Not supported in Symbian +} + +// End of file |