diff options
Diffstat (limited to 'src/location/qgeopositioninfosource_s60.cpp')
| -rw-r--r-- | src/location/qgeopositioninfosource_s60.cpp | 963 |
1 files changed, 0 insertions, 963 deletions
diff --git a/src/location/qgeopositioninfosource_s60.cpp b/src/location/qgeopositioninfosource_s60.cpp deleted file mode 100644 index 95d398c2..00000000 --- a/src/location/qgeopositioninfosource_s60.cpp +++ /dev/null @@ -1,963 +0,0 @@ -/**************************************************************************** -** -** 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 QtLocation module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** 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 <QObject> -#include <QDateTime> -#include <QDebug> -#include <limits.h> -#include "qgeopositioninfosource_s60_p.h" -#include "qgeopositioninfosource.h" -#include "qmlbackendao_s60_p.h" - - - -QT_BEGIN_NAMESPACE - -// constructor -CQGeoPositionInfoSourceS60::CQGeoPositionInfoSourceS60(QObject* aParent) : QGeoPositionInfoSource(aParent), - mCurrentModuleId(TUid::Null()), - mReqModuleId(TUid::Null()), - mDevStatusUpdateAO(NULL), - mReqUpdateAO(NULL), - mRegUpdateAO(NULL), - mSupportedMethods(PositioningMethod(0)), - mCurrentMethod(PositioningMethod(0)), - mListSize(0), - mMinUpdateInterval(100), - mStartUpdates(FALSE), - mRegularUpdateTimedOut(FALSE), - mUpdateIntervalSet(FALSE), - mModuleFlags(0) -{ - memset(mList, 0 , MAX_SIZE * sizeof(CPosMethodInfo)); -} - -// destructor -CQGeoPositionInfoSourceS60::~CQGeoPositionInfoSourceS60() -{ - if (mReqUpdateAO) - delete mReqUpdateAO; - - if (mRegUpdateAO) - delete mRegUpdateAO; - - if (mDevStatusUpdateAO) - delete mDevStatusUpdateAO; - - -} - -// static function NewLC -CQGeoPositionInfoSourceS60* CQGeoPositionInfoSourceS60::NewLC(QObject* aParent) -{ - CQGeoPositionInfoSourceS60* self = - new(ELeave) CQGeoPositionInfoSourceS60(aParent); - CleanupStack::PushL(self); - self->ConstructL(); - return self; -} - -// static function NewL -CQGeoPositionInfoSourceS60* CQGeoPositionInfoSourceS60::NewL(QObject * aParent) -{ - RProcess thisProcess; - if (!thisProcess.HasCapability(ECapabilityLocation)) { - qWarning() << "QGeoPositionInfoSource::createDefaultSource() requires the Symbian Location capability to succeed on the Symbian platform."; - return 0; - } - - CQGeoPositionInfoSourceS60* self = CQGeoPositionInfoSourceS60::NewLC(aParent); - CleanupStack::Pop(); - - //check if the second phase construction is successful - // commented to return the pointer and the application can check if it - //is valid or not - /* if (!self->isValid()) { - delete self; - self = NULL; - }*/ - - return self; -} - -// 2nd phase constructor -void CQGeoPositionInfoSourceS60::ConstructL() -{ - TInt error = mPositionServer.Connect(); - - if (error == KErrNone) { - CleanupClosePushL(mPositionServer); - - mDevStatusUpdateAO = CQMLBackendAO::NewL(this, DeviceStatus); - - if (mDevStatusUpdateAO == NULL) { - CleanupStack::Pop(1); - - return; - } - - //update the list array with the available method initially - updateDeviceStatus(); - - // Set the PreferredPositioningMethods based on Supported methods - QGeoPositionInfoSource::setPreferredPositioningMethods(mSupportedMethods); - - //devStatusUpdateAO->NotifyDeviceStatus(mStatusEvent); - - CleanupStack::PushL(mDevStatusUpdateAO); - - if (mCurrentModuleId != TUid::Null()) { - mRegUpdateAO = CQMLBackendAO::NewL(this, RegularUpdate, mCurrentModuleId); - mRegUpdateAO->setUpdateInterval(updateInterval()); - } - CleanupStack::Pop(2); - } - -} - -QGeoPositionInfo CQGeoPositionInfoSourceS60::lastKnownPosition(bool aFromSatellitePositioningMethodsOnly) const -{ - - QGeoPositionInfo posUpdate; - TPosition pos; - TInt error = KErrNone; - RPositioner iLastKnownpositioner; - TRequestStatus status; - - error = iLastKnownpositioner.Open(*const_cast<RPositionServer*>(&mPositionServer)); - //request for lastknown position update and wait for the request to complete - if (error == KErrNone) { - - TPositionInfo posInfo; - - iLastKnownpositioner.SetRequestor(CRequestor::ERequestorService , - CRequestor::EFormatApplication, _L("QTmobility_Location")); - - - iLastKnownpositioner.GetLastKnownPosition(posInfo, status); - - User::WaitForRequest(status); - - error = status.Int(); - - iLastKnownpositioner.Close(); - - if ((error == KErrNone) || (error == KPositionPartialUpdate)) { - - TPositionModuleInfo modInfo; - mPositionServer.GetModuleInfoById(posInfo.ModuleId(), modInfo); - - if (!aFromSatellitePositioningMethodsOnly || (aFromSatellitePositioningMethodsOnly && (modInfo.Capabilities() & TPositionModuleInfo::ECapabilitySatellite))) { - QGeoCoordinate coord; - - posInfo.GetPosition(pos); - - coord.setLatitude(pos.Latitude()); - coord.setLongitude(pos.Longitude()); - coord.setAltitude(pos.Altitude()); - - //store the QGeoCoordinate values - posUpdate.setCoordinate(coord); - - TDateTime datetime = pos.Time().DateTime(); - QDateTime dt(QDate(datetime.Year(), datetime.Month() + 1, datetime.Day() + 1), - QTime(datetime.Hour(), datetime.Minute(), datetime.Second(), - datetime.MicroSecond() / 1000), - Qt::UTC); - - //store the time stamp - posUpdate.setTimestamp(dt); - - //store the horizontal accuracy - posUpdate.setAttribute(QGeoPositionInfo::HorizontalAccuracy, pos.HorizontalAccuracy()); - - //store the vertical accuracy - posUpdate.setAttribute(QGeoPositionInfo::VerticalAccuracy, pos.VerticalAccuracy()); - - } - } - } - - return posUpdate; -} - -// -int CQGeoPositionInfoSourceS60::minimumUpdateInterval() const -{ - if (mCurrentModuleId == TUid::Null()) - return 0; - - return mMinUpdateInterval; -} - - - -//private function : to derive the supported positioning methods -void CQGeoPositionInfoSourceS60::updateAvailableTypes() -{ - PositioningMethods types; - - for (TInt i = 0; i < mListSize ; i++) { - //check only for the available module without any device errors - if (mList[i].mIsAvailable && - (mList[i].mStatus != TPositionModuleStatus::EDeviceUnknown) && - (mList[i].mStatus != TPositionModuleStatus::EDeviceError)) { - types |= mList[i].mPosMethod; - - } - - //if both SatellitePositioningMethods and NonSatellitePositioningMethods return - if (types.testFlag(AllPositioningMethods)) - break; - } - - //update the supported methods based on types value, derived from the above steps - mSupportedMethods = types; -} - -//private function : to retrieve the index of the supplied module id from the mList array -TInt CQGeoPositionInfoSourceS60::checkModule(TPositionModuleId aId)//const -{ - - TInt i; - for (i = 0; i < mListSize; i++) - if (mList[i].mUid == aId) { - return i; - } - - return -1; -} - -//private function : get the index of the mList that supports the preferred method if -//available,else returns the index of the default module -TInt CQGeoPositionInfoSourceS60::getIndexPositionModule(TUint8 aBits, PositioningMethods aPosMethods) const -{ - TInt index, error; - - TPositionModuleId modID; - - //get the default module Id, whose index is returned if the preferred methods are not - //available - error = mPositionServer.GetDefaultModuleId(modID); - - if (error != KErrNone) - modID = TUid::Null(); - - //index = -1 : no methods available in the mList that supports preferred methods - index = -1; - - - for (TInt i = 0; i < mListSize ; i++) { - //check the module properties to select the preferred method,search should not - //not select an unavailable method,error device or index matching aLastIndex - if (mList[i].mIsAvailable && aPosMethods.testFlag(mList[i].mPosMethod) - && (mList[i].mStatus != TPositionModuleStatus::EDeviceUnknown) - && (mList[i].mStatus != TPositionModuleStatus::EDeviceError) - && (((aBits >> i) & 1))) { - return i; - } - - //store the index of the default module - if ((modID == mList[i].mUid) && ((aBits >> i) & 1)) - index = i; - } - - - return index; -} - -//private function : to get the index of the positioning method with time to first fix -//lesser than timeout -TInt CQGeoPositionInfoSourceS60::getMoreAccurateMethod(TInt aTimeout, TUint8 aBits) -{ - TInt index = -1; - double temp = -1.0; - PositioningMethods posMethods; - TTimeIntervalMicroSeconds microSeconds; - - posMethods = preferredPositioningMethods(); - - //convert the timeout --> micro seconds - microSeconds = aTimeout * 1000; - - for (TInt i = 0 ; i < mListSize; i++) { - if (mList[i].mIsAvailable - && posMethods.testFlag(mList[i].mPosMethod) - && (mList[i].mStatus != TPositionModuleStatus::EDeviceUnknown) - && (mList[i].mStatus != TPositionModuleStatus::EDeviceError) - && (((aBits >> i) & 1)) - && (mList[i].mTimeToFirstFix < microSeconds)) { - if ((temp == -1.0) || (mList[i].mHorizontalAccuracy < temp)) { - index = i; - temp = mList[i].mHorizontalAccuracy; - } - } - } - - if (index != -1) { - return index; - } - - bool minSet = false; - microSeconds = 0; - - for (TInt i = 0 ; i < mListSize; i++) { - if (mList[i].mIsAvailable - && posMethods.testFlag(mList[i].mPosMethod) - && (mList[i].mStatus != TPositionModuleStatus::EDeviceUnknown) - && (mList[i].mStatus != TPositionModuleStatus::EDeviceError) - && (((aBits >> i) & 1))) { - if (!minSet || (mList[i].mTimeToFirstFix < microSeconds)) { - index = i; - minSet = true; - microSeconds = mList[i].mTimeToFirstFix; - } - } - } - - return index; -} - -//private function : to update the mList array -void CQGeoPositionInfoSourceS60::updateStatus(TPositionModuleInfo &aModInfo, TInt aStatus) -{ - - TInt i, index; - TPositionModuleId id; - PositioningMethod method; - TBool available; - TReal32 accuracy; - TTimeIntervalMicroSeconds time_to_first_fix, time_to_next_fix; - TPositionQuality quality; - CQMLBackendAO *temp = NULL; - - //query for the following parameters - id = aModInfo.ModuleId(); - - //module with a satellite capability is assumed to be provided satellite based positioning - //method - method = (aModInfo.Capabilities() & TPositionModuleInfo::ECapabilitySatellite) ? - SatellitePositioningMethods : NonSatellitePositioningMethods; - - //gets the device availability based on the user settings - available = aModInfo.IsAvailable(); - - //quality : holds the required metrics - aModInfo.GetPositionQuality(quality); - - //Accuracy - accuracy = quality.HorizontalAccuracy(); - - //time taken for the first fix - time_to_first_fix = quality.TimeToFirstFix(); - - //time taken for the subsequent fix - time_to_next_fix = quality.TimeToNextFix(); - - - - if ((i = checkModule(id)) == -1) { - //update the properties of the module - QMutexLocker lLocker(&m_mutex); - - //TPositionModuleId of the module - mList[mListSize].mUid = id; - - //positioning method method type - mList[mListSize].mPosMethod = method; - - //status of the device - mList[mListSize].mStatus = aStatus; - - //availablility of the module - mList[mListSize].mIsAvailable = available; - - //horizontal accuracy of the module - mList[mListSize].mHorizontalAccuracy = accuracy; - - //time required to get the first fix - mList[mListSize].mTimeToFirstFix = time_to_first_fix; - - //time required for subsequent fix - mList[mListSize].mTimeToNextFix = time_to_next_fix; - - //count on the mList array size - mListSize++; - - //update the supported source types based on the device status - updateAvailableTypes(); - - //store the correct method in use from the mCurrentModuleId retireved earlier - if (id == mCurrentModuleId) { - mCurrentMethod = method; - mMinUpdateInterval = mList[mListSize-1].mTimeToNextFix.Int64() / 1000; - } - lLocker.unlock(); - } else { - - QMutexLocker lLocker(&m_mutex); - //module's status has changed - if (mList[i].mStatus != aStatus) - mList[i].mStatus = aStatus; - - //module's availability has changed - if (mList[i].mIsAvailable != available) - mList[i].mIsAvailable = available; - - //module's horizontal accuracy has changed - if (mList[i].mHorizontalAccuracy != accuracy) - mList[i].mHorizontalAccuracy = accuracy; - - //module's time to first fix has changed - if (mList[i].mTimeToFirstFix != time_to_first_fix) - mList[i].mTimeToFirstFix = time_to_first_fix; - - //module's time to subsequent fix has changed - if (mList[i].mTimeToNextFix != time_to_next_fix) - mList[i].mTimeToFirstFix = time_to_next_fix; - - //update the supported source types based on the device status - updateAvailableTypes(); - - lLocker.unlock(); - - //if the mCurrentModuleId is NULL, try updating the reg update with the available - //positioning method - if (mCurrentModuleId == TUid::Null() && (available == TRUE) && - (aStatus != TPositionModuleStatus::EDeviceUnknown) && - (aStatus != TPositionModuleStatus::EDeviceError)) { - TInt interval; - - interval = QGeoPositionInfoSource::updateInterval(); - - TRAPD(ret, QT_TRYCATCH_LEAVING(temp = CQMLBackendAO::NewL(this, RegularUpdate, - mList[i].mUid))); - - QMutexLocker lRegLocker_interval(&m_mutex_interval); - mMinUpdateInterval = interval; - lRegLocker_interval.unlock(); - - if ((ret == KErrNone) && (temp != NULL)) { - temp->setUpdateInterval(interval); - - QMutexLocker lRegLocker(&m_mutex_RegUpAO); - if (mRegUpdateAO) - delete mRegUpdateAO; - mRegUpdateAO = temp; - lRegLocker.unlock(); - - //to be uncommented when startUpdates are done - - if (mStartUpdates) - mRegUpdateAO->startUpdates(); - - QMutexLocker lRegLocker_interval1(&m_mutex_interval); - mCurrentModuleId = mList[i].mUid; - mMinUpdateInterval = mList[i].mTimeToNextFix.Int64() / 1000; - - mCurrentMethod = mList[i].mPosMethod; - lRegLocker_interval1.unlock(); - - } - } - - //check if the status of the currently used modules for regular update or - //request update has changed - if (((id == mCurrentModuleId) || (id == mReqModuleId)) && - ((aStatus == TPositionModuleStatus::EDeviceUnknown) || - (aStatus == TPositionModuleStatus::EDeviceError) || - (available == FALSE))) { - //if the change happened for regular update - if (id == mCurrentModuleId) { - TInt interval; - - TUint8 bits; - - interval = QGeoPositionInfoSource::updateInterval(); - - QMutexLocker lRegLocker1(&m_mutex_RegUpAO); - if (mRegUpdateAO) - delete mRegUpdateAO; - lRegLocker1.unlock(); - - bits = mModuleFlags; - - do { - //error = Get the index of the positioning module based on - //the preferred method if available , else get the default - //position module - index = getIndexPositionModule(bits); - - if (index >= 0) { - TRAPD(ret, QT_TRYCATCH_LEAVING(temp = CQMLBackendAO::NewL(this, RegularUpdate, - mList[index].mUid))); - - if ((ret == KErrNone) && (temp != NULL)) - break; - - bits = bits & (0XFF ^(1 << index)); - } - } while (index >= 0); - - - if (temp != NULL) { - //successful in creating the subsession for the required - //method - - QMutexLocker lRegLocker2(&m_mutex_RegUpAO); - mRegUpdateAO = temp; - lRegLocker2.unlock(); - - QMutexLocker lRegLocker_interval2(&m_mutex_interval); - mCurrentModuleId = mList[index].mUid; - mCurrentMethod = mList[index].mPosMethod; - mMinUpdateInterval = mList[index].mTimeToNextFix.Int64() / 1000; - lRegLocker_interval2.unlock(); - - mRegUpdateAO->setUpdateInterval(interval); - - //to be uncommented when startUpdates are done - - if (mStartUpdates) - mRegUpdateAO->startUpdates(); - - } else { - //no methods available,clean up the resources - QMutexLocker lRegLocker3(&m_mutex_RegUpAO); - mRegUpdateAO = NULL; - lRegLocker3.unlock(); - - QMutexLocker lRegLocker_interval3(&m_mutex_interval); - mCurrentModuleId = TUid::Null(); - mMinUpdateInterval = interval; - mCurrentMethod = PositioningMethod(0); - lRegLocker_interval3.unlock(); - - emit updateTimeout(); - } - - } - - //check if device status of the request update module changed - if (id == mReqModuleId) { - QMutexLocker lReqLocker(&m_mutex_ReqUpAO); - if (mRegUpdateAO) - delete mReqUpdateAO; - mReqUpdateAO = NULL; - mReqModuleId = TUid::Null(); - lReqLocker.unlock(); - - emit updateTimeout(); - } - - } - - } //end else - -} - - -// Notification methods from active object. Notifies device status changes -void CQGeoPositionInfoSourceS60::updateDeviceStatus(void) -{ - TPositionModuleStatus moduleStatus; - TPositionModuleInfo moduleInfo; - TInt error; - - //mListSize = 0 : called updateDeviceStatus() first time to initialise the array - if (mListSize == 0) { - TUint modCount; - - //count on the modules currently supported by the device - mPositionServer.GetNumModules(modCount); - - //module ID of the default module - error = mPositionServer.GetDefaultModuleId(mCurrentModuleId); - - if (error != KErrNone) - mCurrentModuleId = TUid::Null(); - - for (TUint i = 0; i < modCount; i++) { - //get module information - mPositionServer.GetModuleInfoByIndex(i, moduleInfo); - - //get module status - mPositionServer.GetModuleStatus(moduleStatus, moduleInfo.ModuleId()); - - //update the properties of the module in the mList array - updateStatus(moduleInfo, moduleStatus.DeviceStatus()); - - mModuleFlags |= (1 << i); - } - } else { - //UpdateDeviceStatus() called after registering for NotifyModuleStatusEvent - - //get the module id from the status event - TPositionModuleId id = mStatusEvent.ModuleId(); - - //get module information - mPositionServer.GetModuleInfoById(id, moduleInfo); - - //get current status of the module - mStatusEvent.GetModuleStatus(moduleStatus); - - //update the properties of the module in the mList array - updateStatus(moduleInfo, moduleStatus.DeviceStatus()); - - - } - - //register for next NotifyModuleStatusEvent - mDevStatusUpdateAO->notifyDeviceStatus(mStatusEvent); - -} - -// -void CQGeoPositionInfoSourceS60::TPositionInfo2QGeoPositionInfo( - HPositionGenericInfo *aPosInfo1, QGeoPositionInfo& aPosInfo2) -{ - TPosition pos; - QGeoCoordinate coord; - float val; - - aPosInfo1->GetPosition(pos); - - - coord.setLatitude(pos.Latitude()); - coord.setLongitude(pos.Longitude()); - coord.setAltitude(pos.Altitude()); - - //store the QGeoCoordinate values - aPosInfo2.setCoordinate(coord); - - TDateTime datetime = pos.Time().DateTime(); - QDateTime dt(QDate(datetime.Year() , datetime.Month() + 1, datetime.Day() + 1), - QTime(datetime.Hour() , datetime.Minute(), datetime.Second(), - datetime.MicroSecond() / 1000), - Qt::UTC); - - //store the time stamp - aPosInfo2.setTimestamp(dt); - - //store the horizontal accuracy - aPosInfo2.setAttribute(QGeoPositionInfo::HorizontalAccuracy, pos.HorizontalAccuracy()); - - //store the vertical accuracy - aPosInfo2.setAttribute(QGeoPositionInfo::VerticalAccuracy, pos.VerticalAccuracy()); - - //check for the horizontal speed - if (aPosInfo1->IsFieldAvailable(EPositionFieldHorizontalSpeed)) { - aPosInfo1->GetValue(EPositionFieldHorizontalSpeed, val); - aPosInfo2.setAttribute(QGeoPositionInfo::GroundSpeed, val); - } - - //check for the vertcal speed - if (aPosInfo1->IsFieldAvailable(EPositionFieldVerticalSpeed)) { - aPosInfo1->GetValue(EPositionFieldVerticalSpeed, val); - aPosInfo2.setAttribute(QGeoPositionInfo::VerticalSpeed, val); - } - - //check for the magnetic variation - if (aPosInfo1->IsFieldAvailable(EPositionFieldMagneticCourseError)) { - aPosInfo1->GetValue(EPositionFieldMagneticCourseError, val); - aPosInfo2.setAttribute(QGeoPositionInfo::MagneticVariation, val); - } - - //check for the heading - if (aPosInfo1->IsFieldAvailable(EPositionFieldHeading)) { - aPosInfo1->GetValue(EPositionFieldHeading, val); - aPosInfo2.setAttribute(QGeoPositionInfo::Direction, val); - } -} -// -void CQGeoPositionInfoSourceS60::updatePosition(HPositionGenericInfo *aPosInfo, int aError) -{ - QGeoPositionInfo posInfo; - - if (aError == KErrNone && aPosInfo) { - //fill posUpdate - TPositionInfo2QGeoPositionInfo(aPosInfo, posInfo); - - mRegularUpdateTimedOut = false; - - //emit posUpdate - emit positionUpdated(posInfo); - } else if (aError == KErrTimedOut) { - //request has timed out - if (mStartUpdates) { - if (!mRegularUpdateTimedOut) { - mRegularUpdateTimedOut = true; - emit updateTimeout(); - } - } else { - emit updateTimeout(); - } - } else { - //posiitoning module is unable to return any position information - emit updateTimeout(); - } -} - -// Returns the PositionServer handle -RPositionServer& CQGeoPositionInfoSourceS60:: getPositionServer() -{ - return mPositionServer; -} - - -// for request update -void CQGeoPositionInfoSourceS60::requestUpdate(int aTimeout) -{ - TInt index = -1; - TUint8 bits; - - CQMLBackendAO *temp = NULL; - - if (mRegUpdateAO == NULL || mCurrentModuleId == TUid::Null()) { - emit updateTimeout(); - return; - } - - //return if already a request update is pending - if (mReqUpdateAO && mReqUpdateAO->isRequestPending()) - return; - - if (aTimeout < 0 || (aTimeout != 0 && aTimeout < minimumUpdateInterval())) { - emit updateTimeout(); - return; - } - - if (aTimeout == 0) - aTimeout = 20000; - - bits = mModuleFlags; - - do { - - //index of the more accurate method in the array - index = getMoreAccurateMethod(aTimeout, bits); - - //no positioning method method available : emit updateTimeout - if (index < 0) { - emit updateTimeout(); - break; - } - //if the selected module for request update is same as the previous one reuse the request - if (mList[index].mUid == mReqModuleId) { - if (mReqUpdateAO) { - mReqUpdateAO->requestUpdate(aTimeout); - return; - } - } - - TRAPD(ret, QT_TRYCATCH_LEAVING(temp = CQMLBackendAO::NewL(this, OnceUpdate, mList[index].mUid))); - - if ((ret == KErrNone) && (temp != NULL)) { - QMutexLocker lReqLocker(&m_mutex_ReqUpAO); - //delete the old reqest update - if (mReqUpdateAO) - delete mReqUpdateAO; - - //set the requestAO to the newly created AO - mReqUpdateAO = temp; - //set the request module ID - mReqModuleId = mList[index].mUid; - lReqLocker.unlock(); - - //start the update - mReqUpdateAO->requestUpdate(aTimeout); - - return; - } - - bits = bits & (0XFF ^(1 << index)); - - } while (index >= 0); - - //cleanup resources if the invalid requpdate is still stored - if (mReqUpdateAO) { - QMutexLocker lReqLocker(&m_mutex_ReqUpAO); - delete mReqUpdateAO; - mReqUpdateAO = NULL; - mReqModuleId = TUid::Null(); - lReqLocker.unlock(); - } - -} - -// starts the regular updates -void CQGeoPositionInfoSourceS60::startUpdates() -{ - //SetUpdateInterval if it is not already set from application - if (!mUpdateIntervalSet) - setUpdateInterval(1000); - - if (mRegUpdateAO == NULL || mCurrentModuleId == TUid::Null()) { - emit updateTimeout(); - return; - } - - if (receivers(SIGNAL(positionUpdated(QGeoPositionInfo))) > 0 && !mStartUpdates) - mRegUpdateAO->startUpdates(); - mRegularUpdateTimedOut = false; - mStartUpdates = true; -} - -// stops the regular updates -void CQGeoPositionInfoSourceS60::stopUpdates() -{ - mStartUpdates = false; - - if (mRegUpdateAO == NULL || mCurrentModuleId == TUid::Null()) { - emit updateTimeout(); - return; - } - - mRegUpdateAO->cancelUpdate(); -} - -void CQGeoPositionInfoSourceS60::setPreferredPositioningMethods(PositioningMethods aMethods) -{ - - - QGeoPositionInfoSource::setPreferredPositioningMethods(aMethods); - - PositioningMethods preferredMethod(PositioningMethods(0)); - TInt index = -1; - // the poistioning methods are not supported - // if the preferred positioning method is the current poistioning - - if (!(mSupportedMethods & aMethods) || (aMethods == PositioningMethods(AllPositioningMethods)) || - (aMethods == PositioningMethods(mCurrentMethod))) - - return; - - //TPositionModuleId moduleId = getPreferredPoistionModuleId(methods); - - //if(moduleId == TUid::Null()) - //return; - CQMLBackendAO *temp = NULL; - TUint8 bits; - bits = mModuleFlags; - do { - //index = Get the index of the positioning module based on - //the preferred method if available , else get the default - //position module - index = getIndexPositionModule(bits, aMethods); - - if (index == -1) - return; - - if (index >= 0) { - - TRAPD(error, QT_TRYCATCH_LEAVING(temp = CQMLBackendAO::NewL(this, RegularUpdate, - mList[index].mUid))); - if ((temp != NULL) && (error == KErrNone)) - break; - - bits = bits & (0XFF ^(1 << index)); - } - } while (index >= 0); - - - - if (temp != NULL) { - // this is needed as the previous setupdateinterval value should not be lost - int updateInterval = QGeoPositionInfoSource::updateInterval(); - QMutexLocker lRegLocker(&m_mutex_RegUpAO); - if (mRegUpdateAO) - delete mRegUpdateAO; - mRegUpdateAO = temp; - - mCurrentModuleId = mList[index].mUid ; - lRegLocker.unlock(); - - index = checkModule(mCurrentModuleId); - - if (index >= 0 && index < mListSize) { - QMutexLocker lRegLocker_interval(&m_mutex_interval); - mCurrentMethod = mList[index].mPosMethod ; - mMinUpdateInterval = mList[index].mTimeToNextFix.Int64() / 1000; - lRegLocker_interval.unlock(); - } - - int value = mRegUpdateAO->setUpdateInterval(updateInterval); - //as the positioning module has changed, - //possibility of the minimumupdateinterval being changed - if (value != updateInterval) - QGeoPositionInfoSource::setUpdateInterval(value); - - } - -} - -void CQGeoPositionInfoSourceS60::setUpdateInterval(int aMilliSec) -{ - - - if (mRegUpdateAO) { - int interval = mRegUpdateAO->setUpdateInterval(aMilliSec); - // as the above set value can be minimum value so - // assigning to the base class data member - QGeoPositionInfoSource::setUpdateInterval(interval); - - mUpdateIntervalSet = true; - } -} - -void CQGeoPositionInfoSourceS60::connectNotify(const char *aSignal) -{ - // start update if it already connected - if (mStartUpdates && mRegUpdateAO && QLatin1String(aSignal) == SIGNAL(positionUpdated(QGeoPositionInfo))) - mRegUpdateAO->startUpdates(); - -} - -void CQGeoPositionInfoSourceS60::disconnectNotify(const char *aSignal) -{ - // Cancel updates if slot is disconnected for the positionUpdate() signal. - - if ((mRegUpdateAO) && (QLatin1String(aSignal) == SIGNAL(positionUpdated(QGeoPositionInfo))) && receivers(SIGNAL(positionUpdated(QGeoPositionInfo))) == 0) - mRegUpdateAO->cancelUpdate(); - -} - -QT_END_NAMESPACE |