qtmobility/plugins/multimedia/symbian/camera/s60cameraexposurecontrol.cpp
changeset 4 90517678cc4f
parent 1 2b40d63a9c3d
child 5 453da2cfceef
equal deleted inserted replaced
1:2b40d63a9c3d 4:90517678cc4f
     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
     6 **
       
     7 ** This file is part of the Qt Mobility Components.
       
     8 **
       
     9 ** $QT_BEGIN_LICENSE:LGPL$
       
    10 ** No Commercial Usage
       
    11 ** This file contains pre-release code and may not be distributed.
       
    12 ** You may use this file in accordance with the terms and conditions
       
    13 ** contained in the Technology Preview License Agreement accompanying
       
    14 ** this package.
       
    15 **
       
    16 ** GNU Lesser General Public License Usage
       
    17 ** Alternatively, this file may be used under the terms of the GNU Lesser
       
    18 ** General Public License version 2.1 as published by the Free Software
       
    19 ** Foundation and appearing in the file LICENSE.LGPL included in the
       
    20 ** packaging of this file.  Please review the following information to
       
    21 ** ensure the GNU Lesser General Public License version 2.1 requirements
       
    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
       
    23 **
       
    24 ** In addition, as a special exception, Nokia gives you certain additional
       
    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception
       
    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
       
    27 **
       
    28 ** If you have questions regarding the use of this file, please contact
       
    29 ** Nokia at qt-info@nokia.com.
       
    30 **
       
    31 **
       
    32 **
       
    33 **
       
    34 **
       
    35 **
       
    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 #include "s60cameraexposurecontrol.h"
       
    43 #include "s60cameraservice.h"
       
    44 #include "s60camerasession.h"
       
    45 
       
    46 #include <QtCore/qdebug.h>
       
    47 #include <QtCore/qstring.h>
       
    48 
       
    49 
       
    50 S60CameraExposureControl::S60CameraExposureControl(QObject *parent)
       
    51     :QCameraExposureControl(parent)
       
    52 {
       
    53 }
       
    54 
       
    55 S60CameraExposureControl::S60CameraExposureControl(QObject *session, QObject *parent)
       
    56    :QCameraExposureControl(parent)
       
    57     , m_error(QCamera::NoError)
       
    58     , m_flashMode(QCamera::FlashOff)
       
    59     , m_exposureMode(QCamera::ExposureAuto)
       
    60     , m_meteringMode(QCamera::MeteringMatrix)
       
    61     , m_ev(0.0)
       
    62 {
       
    63     // use cast if we want to change session class later on..
       
    64     m_session = qobject_cast<S60CameraSession*>(session);
       
    65     m_advancedSettings = m_session->advancedSettings();
       
    66     
       
    67     connect(m_advancedSettings, SIGNAL(exposureLocked()), this, SIGNAL(exposureLocked()));
       
    68     connect(m_advancedSettings, SIGNAL(flashReady(bool)), this, SIGNAL(flashReady(bool)));
       
    69     connect(m_advancedSettings, SIGNAL(apertureChanged(qreal)), this, SIGNAL(apertureChanged(qreal)));
       
    70     connect(m_advancedSettings, SIGNAL(apertureRangeChanged()), this, SIGNAL(apertureRangeChanged()));
       
    71     connect(m_advancedSettings, SIGNAL(shutterSpeedChanged(qreal)), this, SIGNAL(shutterSpeedChanged(qreal)));
       
    72     connect(m_advancedSettings, SIGNAL(isoSensitivityChanged(int)), this, SIGNAL(isoSensitivityChanged(int)));
       
    73 }
       
    74 
       
    75 S60CameraExposureControl::~S60CameraExposureControl()
       
    76 {
       
    77     m_advancedSettings = NULL;
       
    78 }
       
    79 
       
    80 
       
    81 QCamera::FlashMode S60CameraExposureControl::flashMode() const
       
    82 {
       
    83     return m_session->flashMode();
       
    84 }
       
    85 
       
    86 void S60CameraExposureControl::setFlashMode(QCamera::FlashMode mode)
       
    87 {
       
    88     QCamera::FlashModes supportedModes = supportedFlashModes();
       
    89     if (supportedModes & mode) {
       
    90         m_flashMode = mode;
       
    91         m_session->setFlashMode(m_flashMode);
       
    92     }
       
    93 }
       
    94 
       
    95 QCamera::FlashModes S60CameraExposureControl::supportedFlashModes() const
       
    96 {
       
    97     return m_session->supportedFlashModes();
       
    98 }
       
    99 
       
   100 bool S60CameraExposureControl::isFlashReady() const
       
   101 {
       
   102     return m_advancedSettings->isFlashReady();
       
   103 }
       
   104 
       
   105 QCamera::ExposureMode S60CameraExposureControl::exposureMode() const
       
   106 {
       
   107     return m_session->exposureMode();
       
   108 }
       
   109 
       
   110 void S60CameraExposureControl::setExposureMode(QCamera::ExposureMode mode)
       
   111 {
       
   112     //qDebug() << "S60CameraExposureControl::setExposureMode";
       
   113     QCamera::ExposureModes supportedModes = supportedExposureModes();
       
   114     if (supportedModes & mode) {
       
   115         m_exposureMode = mode;
       
   116         //qDebug() << "Set exposure mode";
       
   117         m_session->setExposureMode(m_exposureMode);
       
   118     } 
       
   119 }
       
   120 
       
   121 QCamera::ExposureModes S60CameraExposureControl::supportedExposureModes() const
       
   122 {
       
   123     return m_session->supportedExposureModes();
       
   124 }
       
   125 
       
   126 qreal S60CameraExposureControl::exposureCompensation() const
       
   127 {
       
   128     return m_advancedSettings->exposureCompensation();
       
   129 }
       
   130 
       
   131 void S60CameraExposureControl::setExposureCompensation(qreal ev)
       
   132 {
       
   133     m_advancedSettings->setExposureCompensation(ev);
       
   134     m_ev = ev;
       
   135 }
       
   136 
       
   137 QCamera::MeteringMode S60CameraExposureControl::meteringMode() const
       
   138 {
       
   139     return m_advancedSettings->meteringMode();
       
   140 }
       
   141 
       
   142 void S60CameraExposureControl::setMeteringMode(QCamera::MeteringMode mode)
       
   143 {
       
   144     QCamera::MeteringModes supportedModes = supportedMeteringModes();
       
   145     if (supportedModes & mode) {
       
   146         m_meteringMode = mode;
       
   147         m_advancedSettings->setMeteringMode(mode);
       
   148     } 
       
   149 }
       
   150 
       
   151 QCamera::MeteringModes S60CameraExposureControl::supportedMeteringModes() const
       
   152 {
       
   153     return m_advancedSettings->supportedMeteringModes();
       
   154 }
       
   155 
       
   156 int S60CameraExposureControl::isoSensitivity() const
       
   157 {
       
   158     return m_advancedSettings->isoSensitivity();
       
   159 }
       
   160 
       
   161 QList<int> S60CameraExposureControl::supportedIsoSensitivities(bool *continuous) const
       
   162 {
       
   163     Q_UNUSED(continuous);
       
   164     return m_advancedSettings->supportedIsoSensitivities();
       
   165 }
       
   166 
       
   167 void S60CameraExposureControl::setManualIsoSensitivity(int iso)
       
   168 {
       
   169     int minIso = supportedIsoSensitivities().first();
       
   170     int maxIso = supportedIsoSensitivities().last();
       
   171     if (iso < minIso) {
       
   172         iso = minIso;
       
   173     } else if (iso > maxIso) {
       
   174         iso = maxIso;
       
   175     }
       
   176     m_advancedSettings->setManualIsoSensitivity(iso);
       
   177 }
       
   178 
       
   179 void S60CameraExposureControl::setAutoIsoSensitivity()
       
   180 {
       
   181     m_error = QCamera::NotSupportedFeatureError;   
       
   182 }
       
   183 
       
   184 qreal S60CameraExposureControl::aperture() const
       
   185 {
       
   186     return m_advancedSettings->aperture();
       
   187 }
       
   188 
       
   189 QList<qreal> S60CameraExposureControl::supportedApertures(bool *continuous) const
       
   190 {
       
   191     return m_advancedSettings->supportedApertures(continuous);
       
   192 }
       
   193 
       
   194 void S60CameraExposureControl::setManualAperture(qreal aperture)
       
   195 {
       
   196     int minIso = supportedApertures().first();
       
   197     int maxIso = supportedApertures().last();
       
   198     if (aperture < minIso) {
       
   199         aperture = minIso;
       
   200     } else if (aperture > maxIso) {
       
   201         aperture = maxIso;
       
   202     }
       
   203     m_advancedSettings->setManualAperture(aperture);
       
   204 }
       
   205 
       
   206 void S60CameraExposureControl::setAutoAperture()
       
   207 {
       
   208     m_error = QCamera::NotSupportedFeatureError;
       
   209 }
       
   210 
       
   211 qreal S60CameraExposureControl::shutterSpeed() const
       
   212 {
       
   213     return m_advancedSettings->shutterSpeed();
       
   214 }
       
   215 
       
   216 /*
       
   217   Returns the list of shutter speed values if camera supports only fixed set of shutter speed values,
       
   218   otherwise returns an empty list.
       
   219  */
       
   220 QList<qreal> S60CameraExposureControl::supportedShutterSpeeds(bool *continuous) const
       
   221 {
       
   222     return m_advancedSettings->supportedShutterSpeeds(continuous);;
       
   223 }
       
   224 
       
   225 void S60CameraExposureControl::setManualShutterSpeed(qreal seconds)
       
   226 {
       
   227     m_advancedSettings->setShutterSpeed(seconds);
       
   228 }
       
   229 
       
   230 void S60CameraExposureControl::setAutoShutterSpeed()
       
   231 {
       
   232     m_error = QCamera::NotSupportedFeatureError;
       
   233 }
       
   234 
       
   235 bool S60CameraExposureControl::isExposureLocked() const
       
   236 {
       
   237     return m_advancedSettings->isExposureLocked();
       
   238 }
       
   239 
       
   240 void S60CameraExposureControl::lockExposure()
       
   241 {
       
   242     m_advancedSettings->lockExposure(true);
       
   243 }
       
   244 
       
   245 void S60CameraExposureControl::unlockExposure()
       
   246 {
       
   247     m_advancedSettings->lockExposure(false);
       
   248 }