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/*
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* Copyright (c) 2009-2010 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:
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*
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*/
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#include <QObject> // For Q_OS_SYMBIAN define
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#if defined(Q_OS_SYMBIAN)
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#include <locationtrailpskeys.h>
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#endif
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#include "cxutils.h"
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#include "cxestate.h"
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#include "cxesettings.h"
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#include "cxenamespace.h"
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#include "cxestillcapturecontrol.h"
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#include "cxevideocapturecontrol.h"
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#include "cxegeotaggingtrailprivate.h"
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#include "OstTraceDefinitions.h"
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#ifdef OST_TRACE_COMPILER_IN_USE
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#include "cxegeotaggingtrailprivateTraces.h"
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#endif
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namespace
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{
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// in milliseconds
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const int STOP_TRAIL_INTERVAL = 10*1000;
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}
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/*!
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* Constructor
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*/
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CxeGeoTaggingTrailPrivate::CxeGeoTaggingTrailPrivate(CxeStillCaptureControl &stillControl,
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CxeVideoCaptureControl &videoControl,
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CxeSettings &settings)
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: CxeStateMachine("CxeGeoTaggingTrailPrivate"),
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mStillCaptureControl(stillControl),
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mVideoCaptureControl(videoControl),
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mSettings(settings),
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mStopLocationTrailTimer(),
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mPendingStopTrailSession(false)
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{
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CX_DEBUG_ENTER_FUNCTION();
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qRegisterMetaType<CxeGeoTaggingTrail::State>();
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initializeStates();
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#if defined(Q_OS_SYMBIAN)
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QVariant locationTrailState;
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// Get initial location trail state.
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mSettings.get(KPSUidLocationTrail.iUid, KLocationTrailState,
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Cxe::PublishAndSubscribe, locationTrailState);
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connect(&mSettings, SIGNAL(settingValueChanged(long int, unsigned long int, QVariant)),
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this, SLOT(handleGeoTaggingPropertyEvent(long int, unsigned long int, QVariant)));
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#endif
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connect(&mSettings, SIGNAL(settingValueChanged(const QString&,QVariant)),
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this, SLOT(handleSettingValueChanged(const QString&,QVariant)));
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connect(&mStopLocationTrailTimer, SIGNAL(timeout()),
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this, SLOT(timeout()), Qt::UniqueConnection);
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CX_DEBUG_EXIT_FUNCTION();
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}
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/*!
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* Destructor
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*/
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CxeGeoTaggingTrailPrivate::~CxeGeoTaggingTrailPrivate()
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{
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CX_DEBUG_ENTER_FUNCTION();
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// stop trail and close location utility session
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stop(true);
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CX_DEBUG_EXIT_FUNCTION();
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}
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/*!
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* Start location trail.
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*/
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void CxeGeoTaggingTrailPrivate::start()
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{
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CX_DEBUG_ENTER_FUNCTION();
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OstTrace0(camerax_performance, CXEGEOTAGGINGTRAIL_START_1, "msg: e_CX_START_GEOTAGGING 1");
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#if defined(Q_OS_SYMBIAN)
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int err = KErrNone;
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int settingValue = Cxe::GeoTaggingOff;
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mSettings.get(CxeSettingIds::GEOTAGGING, settingValue);
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if (settingValue == Cxe::GeoTaggingOn) {
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// geotagging setting is ON, trying to start location trail
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if (state() == CxeGeoTaggingTrail::NotConnected) {
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err = mLocationTrail.Connect();
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if (!err) {
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CX_DEBUG(("CxeGeoTaggingTrail <> location trail connected"));
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setState(CxeGeoTaggingTrail::Connected);
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}
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}
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if (state() == CxeGeoTaggingTrail::Connected && !err) {
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err = mLocationTrail.StartLocationTrail(RLocationTrail::ECaptureAll);
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if (!err) {
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CX_DEBUG(("CxeGeoTaggingTrail <> starting location trail"));
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mStopLocationTrailTimer.stop(); // stop location timer.
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setState(CxeGeoTaggingTrail::TrailStarted);
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}
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}
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if (err) {
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CX_DEBUG(("CxeGeoTaggingTrailPrivate::start <> FAILED: error = %d ", err));
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stop(true);
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}
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} else {
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// geotagging setting off, do nothing.
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CX_DEBUG(("CxeGeoTaggingTrail <> start -- Geotagging setting OFF, do nothing.."));
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}
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#endif
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OstTrace0(camerax_performance, CXEGEOTAGGINGTRAIL_START_2, "msg: e_CX_START_GEOTAGGING 0");
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CX_DEBUG_EXIT_FUNCTION();
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}
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/*!
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* Stop location trail.
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* @ param closeSession, indicates if we are willing to close the location utility session.
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*/
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void CxeGeoTaggingTrailPrivate::stop(bool closeSession)
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{
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CX_DEBUG_ENTER_FUNCTION();
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OstTrace0(camerax_performance, CXEGEOTAGGINGTRAIL_STOP_1, "msg: e_CX_STOP_GEOTAGGING 1");
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#if defined(Q_OS_SYMBIAN)
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bool ok2StopTrail = canStopTrail();
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if (ok2StopTrail) {
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if (state() == CxeGeoTaggingTrail::TrailStarted ||
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state() == CxeGeoTaggingTrail::DataAvailable) {
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CX_DEBUG(("CxeGeoTaggingTrailPrivate::StopLocationTrail"));
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// stop location trail timer.
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mStopLocationTrailTimer.stop();
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mLocationTrail.StopLocationTrail();
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setState(CxeGeoTaggingTrail::Connected);
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}
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if (closeSession && state() == CxeGeoTaggingTrail::Connected) {
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CX_DEBUG(("CxeGeoTaggingTrailPrivate <> disconnect location trail utility"));
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mLocationTrail.Close();
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setState(CxeGeoTaggingTrail::NotConnected);
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}
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} else {
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// not ready to stop the location trail, TrailStarted the timer.
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if (!mPendingStopTrailSession) {
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mPendingStopTrailSession = closeSession;
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}
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mStopLocationTrailTimer.start(STOP_TRAIL_INTERVAL);
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}
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#endif
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OstTrace0(camerax_performance, CXEGEOTAGGINGTRAIL_STOP_2, "msg: e_CX_STOP_GEOTAGGING 0");
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}
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/*!
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* Checking possible stillcapturecontrol/videocapturecontrol states for stopping
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* location trail.
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*/
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bool CxeGeoTaggingTrailPrivate::canStopTrail() const
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{
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// checking still capture control states
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bool ok = mStillCaptureControl.state() != CxeStillCaptureControl::Capturing;
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// Still side OK, checking video capture control states
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if (ok) {
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ok = (mVideoCaptureControl.state() != CxeVideoCaptureControl::Recording &&
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mVideoCaptureControl.state() != CxeVideoCaptureControl::Paused &&
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mVideoCaptureControl.state() != CxeVideoCaptureControl::Stopping);
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}
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return ok;
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}
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/*!
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* Slot that is called when timer timeout signal is triggered. We track this to do pending
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* stopping of location trail.
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*/
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void CxeGeoTaggingTrailPrivate::timeout()
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{
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CX_DEBUG_ENTER_FUNCTION();
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// stop the pending location trail utility
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stop(mPendingStopTrailSession);
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CX_DEBUG_EXIT_FUNCTION();
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}
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/*!
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* Handle new setting value.
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* Check if the geotagging setting has changed.
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*/
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void CxeGeoTaggingTrailPrivate::handleSettingValueChanged(const QString& settingId, QVariant newValue)
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{
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CX_DEBUG_ENTER_FUNCTION();
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if (settingId == CxeSettingIds::GEOTAGGING) {
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if (newValue.toInt() == Cxe::GeoTaggingOn) {
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// setting is turned ON, start location trail
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start();
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} else {
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// setting is turned OFF, stopping location trail
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stop();
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}
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} else if (settingId == CxeSettingIds::GEOTAGGING_DISCLAIMER) {
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if (newValue.toInt() == Cxe::GeoTaggingDisclaimerDisabled) {
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// geotagging disclaimer is diabled, we can start location trail.
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start();
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}
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}
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CX_DEBUG_EXIT_FUNCTION();
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}
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/*!
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* Handle new setting value.
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* Check if the geotagging setting has changed.
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*/
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void CxeGeoTaggingTrailPrivate::handleGeoTaggingPropertyEvent(long int uid,
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unsigned long int key,
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QVariant value)
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{
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CX_DEBUG_ENTER_FUNCTION();
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#if defined(Q_OS_SYMBIAN)
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if (uid == KPSUidLocationTrail.iUid && key == KLocationTrailState) {
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CX_DEBUG(("Location trail: new state = %d ", value.toInt()));
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RLocationTrail::TTrailState newState =
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static_cast<RLocationTrail::TTrailState>(value.toInt());
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if (newState == RLocationTrail::ETrailStarted) {
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CX_DEBUG(("CxeGeoTaggingTrail <> location trail started, data available."));
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setState(CxeGeoTaggingTrail::DataAvailable);
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} else {
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// ignoring all other state changes.
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}
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}
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#endif
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CX_DEBUG_EXIT_FUNCTION();
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}
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/*!
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Returns current state of Location trail
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*/
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CxeGeoTaggingTrail::State CxeGeoTaggingTrailPrivate::state() const
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{
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return static_cast<CxeGeoTaggingTrail::State> (stateId());
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}
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/*!
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* slot called when state is changed.
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*/
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void CxeGeoTaggingTrailPrivate::handleStateChanged(int newStateId, CxeError::Id error)
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{
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emit stateChanged(static_cast<CxeGeoTaggingTrail::State> (newStateId), error);
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}
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/*!
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* Initialize states for geotaggingtrail
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*/
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void CxeGeoTaggingTrailPrivate::initializeStates()
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{
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// addState( id, name, allowed next states )
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addState(new CxeState(CxeGeoTaggingTrail::NotConnected, "NotConnected", CxeGeoTaggingTrail::Connected));
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addState(new CxeState(CxeGeoTaggingTrail::Connected, "Connected", CxeGeoTaggingTrail::TrailStarted |
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CxeGeoTaggingTrail::NotConnected));
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addState(new CxeState(CxeGeoTaggingTrail::TrailStarted, "TrailStarted", CxeGeoTaggingTrail::DataAvailable |
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CxeGeoTaggingTrail::Connected |
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CxeGeoTaggingTrail::NotConnected));
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addState(new CxeState(CxeGeoTaggingTrail::DataAvailable, "DataAvailable", CxeGeoTaggingTrail::Connected |
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CxeGeoTaggingTrail::NotConnected));
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setInitialState(CxeGeoTaggingTrail::NotConnected);
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}
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// end of file
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