camerauis/cameraxui/cxui/src/cxuistillprecaptureview.cpp
branchRCL_3
changeset 53 61bc0f252b2b
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/camerauis/cameraxui/cxui/src/cxuistillprecaptureview.cpp	Tue Aug 31 15:03:46 2010 +0300
@@ -0,0 +1,1051 @@
+/*
+* Copyright (c) 2009-2010 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:
+*
+*/
+#include <QVariant>
+#include <QMetaType>
+#include <QGraphicsLayout>
+
+#include <hbpushbutton.h>
+#include <hblabel.h>
+#include <hbtoolbar.h>
+#include <hbaction.h>
+#include <hbmainwindow.h>
+#include <hbtransparentwindow.h>
+#include <hbslider.h>
+#include <hblistwidget.h>
+#include <hbdialog.h>
+#include <hblistwidgetitem.h>
+#include <hbtoolbarextension.h>
+#include <hbtoolbutton.h>
+#include <hbdeviceprofile.h> // HbDeviceProfile
+#include <hbmenu.h>
+#include <hbicon.h>
+#include <hbactivitymanager.h>
+
+#include "cxuiselftimer.h"
+#include "cxeengine.h"
+#include "cxeviewfindercontrol.h"
+#include "cxecameradevicecontrol.h"
+#include "cxestillcapturecontrol.h"
+#include "cxeautofocuscontrol.h"
+#include "cxuicapturekeyhandler.h"
+#include "cxutils.h"
+#include "cxenamespace.h" // CxeSettingIds
+#include "cxuienums.h"
+#include "cxesettings.h"
+#include "cxefeaturemanager.h" // mEngine->featureManager()
+#include "cxuidocumentloader.h"
+
+#ifdef Q_OS_SYMBIAN
+#include "OstTraceDefinitions.h"
+
+#ifdef OST_TRACE_COMPILER_IN_USE
+#include "cxuistillprecaptureviewTraces.h"
+#endif
+
+#endif //Q_OS_SYMBIAN
+
+#include "cxuistillprecaptureview.h"
+#include "cxuiserviceprovider.h"
+#include "cxuisettingdialog.h"
+#include "cxuisettingradiobuttonlist.h"
+#include "cxuizoomslider.h"
+
+using namespace Cxe;
+using namespace CxUiLayout;
+using namespace CxUiInternal;
+
+const int CXUI_CAPTURE_PENDING_TIMEOUT = 5000; // 5 seconds
+const int CXUI_IMAGES_LEFT_LIMIT = 99; // images left is shown only if below this limit
+
+CxuiStillPrecaptureView::CxuiStillPrecaptureView( QGraphicsItem *parent) :
+    CxuiPrecaptureView(parent),
+    mSelfTimer(NULL),
+    mFlashSetting(NULL),
+    mStillSettingsPopup(NULL),
+    mSceneModePopup(NULL),
+    mCapturePending(false),
+    mImagesLeft(NULL),
+    mImagesLeftContainer(NULL),
+    mPendingAfCanceling(false)
+{
+    CX_DEBUG_IN_FUNCTION();
+}
+
+CxuiStillPrecaptureView::~CxuiStillPrecaptureView()
+{
+    CX_DEBUG_IN_FUNCTION();
+    delete mSelfTimer;
+}
+
+/*!
+ * Construct-method handles initialisation tasks for this class. Needs to be called
+ * before the instance of this class is used.
+ * @param mainwindow
+ * @param engine
+ * @param documentLoader
+ * @param keyHandler
+ */
+void CxuiStillPrecaptureView::construct(HbMainWindow *mainwindow, CxeEngine *engine,
+                                        CxuiDocumentLoader *documentLoader,
+                                        CxuiCaptureKeyHandler *keyHandler,
+                                        HbActivityManager *activityManager)
+{
+    CX_DEBUG_ENTER_FUNCTION();
+    OstTrace0( camerax_performance, CXUISTILLPRECAPTUREVIEW_CONSTRUCT, "msg: e_CX_STILLPRECAPVIEW_CONSTRUCT 1" );
+
+    // constuct base class
+    CxuiPrecaptureView::construct(mainwindow, engine, documentLoader, keyHandler, activityManager);
+
+    connect(&mEngine->autoFocusControl(), SIGNAL(stateChanged(CxeAutoFocusControl::State,CxeError::Id)),
+            this, SLOT(handleAutoFocusStateChanged(CxeAutoFocusControl::State,CxeError::Id)));
+    connect(&mEngine->stillCaptureControl(), SIGNAL(snapshotReady(CxeError::Id, const QImage&, int)),
+            this, SLOT(handleSnapshot(CxeError::Id)));
+    connect(&mEngine->stillCaptureControl(), SIGNAL(stateChanged(CxeStillCaptureControl::State, CxeError::Id)),
+            this, SLOT(handleStillCaptureStateChanged(CxeStillCaptureControl::State, CxeError::Id)));
+    connect(&mEngine->viewfinderControl(), SIGNAL(stateChanged(CxeViewfinderControl::State, CxeError::Id)),
+            this, SLOT(handleViewfinderStateChanged(CxeViewfinderControl::State, CxeError::Id)));
+    connect(&mEngine->stillCaptureControl(), SIGNAL(availableImagesChanged()),
+            this, SLOT(updateImagesLeftLabel()));
+
+    mEngine->settings().listenForSetting(CxeSettingIds::IMAGE_SCENE_DATA, this, SLOT(handleSceneChanged(const QVariant&)));
+
+    loadDefaultWidgets();
+    hideControls();
+
+    OstTrace0( camerax_performance, DUP1_CXUISTILLPRECAPTUREVIEW_CONSTRUCT, "msg: e_CX_STILLPRECAPVIEW_CONSTRUCT 0" );
+    CX_DEBUG_EXIT_FUNCTION();
+}
+
+/*!
+ * Loads default widgets in layouts xml.
+ */
+void CxuiStillPrecaptureView::loadDefaultWidgets()
+{
+    CX_DEBUG_ENTER_FUNCTION();
+    CX_ASSERT_ALWAYS(mDocumentLoader);
+
+    // get pointer to the viewfinder
+    QGraphicsWidget *widget = NULL;
+    widget = mDocumentLoader->findWidget(STILL_PRE_CAPTURE_VIEWFINDER);
+    mViewfinder = qobject_cast<HbTransparentWindow *>(widget);
+    CX_ASSERT_ALWAYS(mViewfinder);
+
+    reloadIndicatorWidgets();
+    CX_DEBUG_EXIT_FUNCTION();
+}
+
+/*!
+ * Loads default indicators from docml and modifies the visibility
+ * according to current settings.
+ */
+void CxuiStillPrecaptureView::reloadIndicatorWidgets()
+{
+    CX_DEBUG_ENTER_FUNCTION();
+    CX_ASSERT_ALWAYS(mDocumentLoader);
+
+    bool ok = false;
+    mDocumentLoader->load(STILL_1ST_XML, STILL_PRE_CAPTURE_INDICATORS_SECTION, &ok);
+    CX_ASSERT_ALWAYS(ok);
+
+    QGraphicsWidget *widget = NULL;
+    widget = mDocumentLoader->findWidget(STILL_PRE_CAPTURE_QUALITY_ICON);
+    mQualityIcon = qobject_cast<HbLabel *>(widget);
+    CX_ASSERT_ALWAYS(mQualityIcon);
+
+    widget = mDocumentLoader->findWidget(STILL_PRE_CAPTURE_FLASHBLINK_INDICATOR_ICON);
+    HbLabel *flashBlinkingIcon = qobject_cast<HbLabel *>(widget);
+    CX_ASSERT_ALWAYS(flashBlinkingIcon);
+
+    widget = mDocumentLoader->findWidget(STILL_PRE_CAPTURE_GEOTAGGING_INDICATOR_ICON);
+    mGeoTaggingIndicatorIcon = qobject_cast<HbLabel *>(widget);
+    CX_ASSERT_ALWAYS(mGeoTaggingIndicatorIcon);
+
+    widget = mDocumentLoader->findWidget(STILL_PRE_CAPTURE_FACE_TRACKING_ICON);
+    mFaceTrackingIcon = qobject_cast<HbLabel *>(widget);
+    CX_ASSERT_ALWAYS(mFaceTrackingIcon);
+
+    widget = mDocumentLoader->findWidget(STILL_PRE_CAPTURE_INDICATOR_CONTAINER);
+    mIndicators = qobject_cast<HbWidget *>(widget);
+    CX_ASSERT_ALWAYS(mIndicators);
+
+    QGraphicsLayout *layout = mIndicators->layout();
+    QGraphicsLayoutItem *graphicsLayoutItem = NULL;
+    QGraphicsItem *graphicsItem = NULL;
+    QString key = "";
+    int currentSettingValue = -1;
+    bool isSettingOff = false;
+    // Go through the items in the layout to check whether they should be
+    // shown or not in the indicator pane. Start from the last towards
+    // the first, so that removing items from between works correctly.
+    for (int i = layout->count() - 1; i >= 0; i--) {
+        graphicsLayoutItem = layout->itemAt(i);
+        isSettingOff = false;
+        if (graphicsLayoutItem) {
+            graphicsItem = graphicsLayoutItem->graphicsItem();
+            currentSettingValue = -1;
+            if (graphicsItem == mGeoTaggingIndicatorIcon) {
+                key = CxeSettingIds::GEOTAGGING;
+                currentSettingValue = mEngine->settings().get(key, currentSettingValue);
+                if (currentSettingValue == Cxe::GeoTaggingOff) {
+                    isSettingOff = true;
+                }
+            } else if (graphicsItem == mFaceTrackingIcon) {
+                key = CxeSettingIds::FACE_TRACKING;
+                currentSettingValue = mEngine->settings().get(key, currentSettingValue);
+                // facetracking implementation does not use
+                // enum for on/off values but instead
+                // 0 for off and 1 for on.
+                if (currentSettingValue == 0) {
+                    isSettingOff = true;
+                }
+            } else if (graphicsItem == flashBlinkingIcon) {
+                //remove flash indicator
+                isSettingOff = true;
+            }
+            if (isSettingOff) {
+                layout->removeAt(i);
+            }
+        }
+    }
+
+    // create background for indicator container
+    createWidgetBackgroundGraphic(mIndicators, TRANSPARENT_BACKGROUND_GRAPHIC);
+
+    mIndicators->setVisible(true);
+
+    CX_DEBUG_EXIT_FUNCTION();
+}
+
+/*!
+ * Loads widgets that are not part of the default section in layouts xml.
+ * Widgets are created at the time they are first loaded.
+ */
+void CxuiStillPrecaptureView::loadWidgets()
+{
+    CX_DEBUG_ENTER_FUNCTION();
+    CX_ASSERT_ALWAYS(mDocumentLoader);
+
+    if (mWidgetsLoaded) {
+        CX_DEBUG(("Widgets already loaded"));
+        CX_DEBUG_EXIT_FUNCTION();
+        return;
+    }
+
+    OstTrace0( camerax_performance, CXUISTILLPRECAPTUREVIEW_LOADWIDGETS, "msg: e_CX_STILLPRECAPTUREVIEW_LOADWIDGETS 1" );
+
+    bool ok = false;
+
+    OstTrace0( camerax_performance, DUP4_CXUISTILLPRECAPTUREVIEW_LOADWIDGETS, "msg: e_CX_DOCUMENTLOADER_LOAD 1" );
+    mDocumentLoader->load(STILL_1ST_XML, STILL_PRE_CAPTURE_WIDGETS_SECTION, &ok);
+    CX_ASSERT_ALWAYS(ok);
+    if (CxuiServiceProvider::isCameraEmbedded()) {
+        mDocumentLoader->load(STILL_1ST_XML, STILL_PRE_CAPTURE_EMBEDDED_SECTION, &ok);
+    } else {
+        mDocumentLoader->load(STILL_1ST_XML, STILL_PRE_CAPTURE_STANDALONE_SECTION, &ok);
+    }
+    OstTrace0( camerax_performance, DUP5_CXUISTILLPRECAPTUREVIEW_LOADWIDGETS, "msg: e_CX_DOCUMENTLOADER_LOAD 0" );
+    CX_ASSERT_ALWAYS(ok);
+
+    // get pointers to ui components from the layout data
+    QGraphicsWidget *widget = NULL;
+    QObject *object = NULL;
+
+    widget = mDocumentLoader->findWidget(STILL_PRE_CAPTURE_ZOOM_SLIDER);
+    mSlider = qobject_cast<CxuiZoomSlider *>(widget);
+    CX_ASSERT_ALWAYS(mSlider);
+    mSlider->addZoomButtons();
+    createWidgetBackgroundGraphic(mSlider, TRANSPARENT_BACKGROUND_GRAPHIC);
+
+    // create background for selftimer containers
+    HbWidget *container = NULL;
+    widget = mDocumentLoader->findWidget(STILL_PRE_CAPTURE_SELFTIMER_CONTAINER);
+    container = qobject_cast<HbWidget *>(widget);
+    CX_ASSERT_ALWAYS(container);
+    createWidgetBackgroundGraphic(container, TRANSPARENT_BACKGROUND_GRAPHIC);
+
+    // connect selftimer start button to hide controls
+    widget = mDocumentLoader->findWidget(STILL_PRE_CAPTURE_SELFTIMER_START_BUTTON);
+    HbPushButton *startButton = qobject_cast<HbPushButton *>(widget);
+    CX_ASSERT_ALWAYS(startButton);
+    connect(startButton, SIGNAL(released()), this, SLOT(hideControls()));
+
+    widget = mDocumentLoader->findWidget(STILL_PRE_CAPTURE_TOOLBAR);
+    mToolbar = qobject_cast<HbToolBar *>(widget);
+    CX_ASSERT_ALWAYS(mToolbar);
+
+    object = mDocumentLoader->findObject(STILL_PRE_CAPTURE_FLASH_ACTION);
+    mFlashSetting = qobject_cast<HbAction *>(object);
+    CX_ASSERT_ALWAYS(mFlashSetting);
+
+    widget = mDocumentLoader->findWidget(STILL_PRE_CAPTURE_IMAGES_LEFT_LABEL);
+    mImagesLeft = qobject_cast<HbLabel *>(widget);
+    CX_ASSERT_ALWAYS(mImagesLeft);
+
+    widget = mDocumentLoader->findWidget(STILL_PRE_CAPTURE_IMAGES_LEFT_CONTAINER);
+    mImagesLeftContainer = qobject_cast<HbWidget *>(widget);
+    CX_ASSERT_ALWAYS(mImagesLeftContainer);
+    createWidgetBackgroundGraphic(mImagesLeftContainer, TRANSPARENT_BACKGROUND_GRAPHIC);
+    updateImagesLeftLabel();
+
+    // Create self timer.
+    // Let selftimer class get needed selftimer related widgets from the documentloader
+    mSelfTimer = new CxuiSelfTimer(mEngine->settings());
+    CX_ASSERT_ALWAYS(mSelfTimer);
+    connect(mSelfTimer, SIGNAL(timerFinished()), this, SLOT(focusAndCapture()));
+    mSelfTimer->loadSelftimerWidgets(mDocumentLoader);
+
+    if (CxuiServiceProvider::isCameraEmbedded()) {
+        CX_DEBUG(("EMBEDDED: camera in embedded mode"));
+
+        if (!CxuiServiceProvider::instance()->allowQualityChange()) {
+
+            CX_DEBUG(("EMBEDDED: don't allow quality change"));
+            HbAction* iq = qobject_cast<HbAction*>(mDocumentLoader->findObject(STILL_PRE_CAPTURE_IMAGE_QUALITY_ACTION));
+            if (iq) {
+                CX_DEBUG(("EMBEDDED: setting image quality setting to disabled"));
+                iq->setEnabled(false);
+            }
+        }
+        if (!CxuiServiceProvider::instance()->allowModeSwitching()) {
+            CX_DEBUG(("EMBEDDED: don't allow mode switching"));
+
+            HbAction *video = qobject_cast<HbAction*>(mDocumentLoader->findObject(STILL_PRE_CAPTURE_GOTO_VIDEO_ACTION));
+            if (video) {
+                CX_DEBUG(("EMBEDDED: setting mode switch to disabled"));
+                video->setEnabled(false);
+            }
+        }
+        if (!CxuiServiceProvider::instance()->allowCameraSwitching()) {
+            CX_DEBUG(("EMBEDDED: don't allow camera switching"));
+        }
+
+    }
+
+    // Setting widgets loaded here so updating icons works.
+    mWidgetsLoaded = true;
+
+    // Update toolbar flash mode icon
+    int flash = mEngine->settings().get<int>(CxeSettingIds::FLASH_MODE);
+    handleSettingValueChanged(CxeSettingIds::FLASH_MODE, flash);
+
+    // Update toolbar scene mode icon
+    updateSceneIcon(mEngine->settings().get<QString>(CxeSettingIds::IMAGE_SCENE));
+
+    hideControls();
+
+    // Check if we need to show the geotagging disclaimer for first time use.
+    Cxe::GeoTaggingDisclaimer value = mEngine->settings().get<Cxe::GeoTaggingDisclaimer>(CxeSettingIds::GEOTAGGING_DISCLAIMER, Cxe::GeoTaggingDisclaimerDisabled);
+    if (value == Cxe::GeoTaggingDisclaimerEnabled) {
+        launchGeoTaggingDisclaimerDialog();
+    }
+
+    // View is ready. Needed for startup performance automated testing.
+    emit viewReady();
+
+    OstTrace0( camerax_performance, DUP1_CXUISTILLPRECAPTUREVIEW_LOADWIDGETS, "msg: e_CX_STILLPRECAPTUREVIEW_LOADWIDGETS 0" );
+    CX_DEBUG_EXIT_FUNCTION();
+}
+
+/*!
+ * Restore view state from activity.
+ */
+void CxuiStillPrecaptureView::restoreActivity(const QString &activityId, const QVariant &data)
+{
+    Q_UNUSED(activityId);
+    Q_UNUSED(data);
+
+    CX_DEBUG_ENTER_FUNCTION();
+    // no need to restore any state
+    CX_DEBUG_EXIT_FUNCTION();
+}
+
+/*!
+ * Save view state to activity.
+ */
+void CxuiStillPrecaptureView::saveActivity()
+{
+    CX_DEBUG_ENTER_FUNCTION();
+    QVariantMap data;
+    QVariantHash params;
+
+    HbIcon activityScreenshot("qtg_graf_taskswitcher_camera");
+    QPixmap screenshot = activityScreenshot.pixmap();
+    params.insert("screenshot", screenshot);
+
+    mActivityManager->removeActivity(
+            CxuiActivityIds::STILL_PRECAPTURE_ACTIVITY);
+    mActivityManager->addActivity(CxuiActivityIds::STILL_PRECAPTURE_ACTIVITY,
+                                  data, params);
+    CX_DEBUG_EXIT_FUNCTION();
+}
+
+/*!
+ * Clear activity from activity manager.
+ */
+void CxuiStillPrecaptureView::clearActivity()
+{
+    CX_DEBUG_ENTER_FUNCTION();
+    mActivityManager->removeActivity(CxuiActivityIds::STILL_PRECAPTURE_ACTIVITY);
+    CX_DEBUG_EXIT_FUNCTION();
+}
+
+/*!
+* Initializing settings grid
+*/
+void CxuiStillPrecaptureView::initializeSettingsGrid()
+{
+    if(!mSettingsGrid) {
+        HbAction* action(NULL);
+
+        // Initialize settings grid
+        mSettingsGrid = new HbToolBarExtension;
+
+        action = mSettingsGrid->addAction(HbIcon("qtg_mono_exposure"), hbTrId("txt_cam_button_exposure_compensation"), this, SLOT(launchSliderSetting()));
+        action->setProperty(PROPERTY_KEY_SETTING_ID, CxeSettingIds::EV_COMPENSATION_VALUE);
+        action->setProperty(PROPERTY_KEY_SETTING_GRID, PROPERTY_KEY_TRUE);
+
+        action = mSettingsGrid->addAction(HbIcon("qtg_mono_iso"), hbTrId("txt_cam_button_iso"), this, SLOT(launchSetting()));
+        action->setProperty(PROPERTY_KEY_SETTING_ID, CxeSettingIds::LIGHT_SENSITIVITY);
+        action->setProperty(PROPERTY_KEY_SETTING_GRID, PROPERTY_KEY_TRUE);
+
+        action = mSettingsGrid->addAction(HbIcon("qtg_small_rgb"), hbTrId("txt_cam_button_color_tone"), this, SLOT(launchSetting()));
+        action->setProperty(PROPERTY_KEY_SETTING_ID, CxeSettingIds::COLOR_TONE);
+        action->setProperty(PROPERTY_KEY_SETTING_GRID, PROPERTY_KEY_TRUE);
+
+        action = mSettingsGrid->addAction(HbIcon("qtg_mono_white_balance"), hbTrId("txt_cam_button_white_balance"), this, SLOT(launchSetting()));
+        action->setProperty(PROPERTY_KEY_SETTING_ID, CxeSettingIds::WHITE_BALANCE);
+        action->setProperty(PROPERTY_KEY_SETTING_GRID, PROPERTY_KEY_TRUE);
+
+        action = mSettingsGrid->addAction(HbIcon("qtg_mono_sharpness"), hbTrId("txt_cam_grid_sharpness"), this, SLOT(launchSliderSetting()));
+        action->setProperty(PROPERTY_KEY_SETTING_ID, CxeSettingIds::SHARPNESS);
+        action->setProperty(PROPERTY_KEY_SETTING_GRID, PROPERTY_KEY_TRUE);
+
+        action = mSettingsGrid->addAction(HbIcon("qtg_mono_contrast"), hbTrId("txt_cam_button_contrast"), this, SLOT(launchSliderSetting()));
+        action->setProperty(PROPERTY_KEY_SETTING_ID, CxeSettingIds::CONTRAST);
+        action->setProperty(PROPERTY_KEY_SETTING_GRID, PROPERTY_KEY_TRUE);
+
+        action = mSettingsGrid->addAction(HbIcon("qtg_mono_face_tracking"), hbTrId("txt_cam_button_face_tracking"), this, SLOT(launchSetting()));
+        action->setProperty(PROPERTY_KEY_SETTING_ID, CxeSettingIds::FACE_TRACKING);
+        action->setProperty(PROPERTY_KEY_SETTING_GRID, PROPERTY_KEY_TRUE);
+
+        connect(mCaptureKeyHandler, SIGNAL(autofocusKeyPressed()), mSettingsGrid, SLOT(close()));
+    }
+}
+
+/**
+* Get if postcapture view should be shown or not.
+* Postcapture view may be shown for a predefined time or
+* until user dismisses it, or it may be completely disabled.
+*/
+bool CxuiStillPrecaptureView::isPostcaptureOn() const
+{
+    CX_DEBUG_ENTER_FUNCTION();
+    if (CxuiServiceProvider::isCameraEmbedded()) {
+        // always show post capture in embedded mode
+        CX_DEBUG_EXIT_FUNCTION();
+        return true;
+    }
+
+    // Read the value from settings. Ignoring reading error.
+    // On error (missing settings) default to "postcapture on".
+    int showPostcapture(-1);
+    if(mEngine) {
+        showPostcapture = mEngine->settings().get<int>(CxeSettingIds::STILL_SHOWCAPTURED, -1);
+    }
+
+    CX_DEBUG_EXIT_FUNCTION();
+    return showPostcapture != 0; // 0 == no postcapture
+}
+
+/*!
+* Update the scene mode icon.
+* @param sceneId The new scene id.
+*/
+void CxuiStillPrecaptureView::updateSceneIcon(const QString& sceneId)
+{
+    CX_DEBUG_ENTER_FUNCTION();
+
+    if (mEngine->mode() == Cxe::ImageMode) {
+        CX_DEBUG(("CxuiStillPrecaptureView - scene: %s", sceneId.toAscii().constData()));
+
+        // No need to update icon, if widgets are not even loaded yet.
+        // We'll update the icon once the widgets are loaded.
+        if (mWidgetsLoaded) {
+
+            QString iconObjectName = STILL_PRE_CAPTURE_SCENE_MODE_ACTION;
+            QString icon = getSettingItemIcon(CxeSettingIds::IMAGE_SCENE, sceneId);
+
+            CX_DEBUG(("CxuiStillPrecaptureView - icon: %s", icon.toAscii().constData()));
+
+            if (mDocumentLoader) {
+                QObject *obj = mDocumentLoader->findObject(iconObjectName);
+                CX_ASSERT_ALWAYS(obj);
+                qobject_cast<HbAction *>(obj)->setIcon(HbIcon(icon));
+            }
+        } else {
+            CX_DEBUG(("CxuiStillPrecaptureView - widgets not loaded yet, ignored!"));
+        }
+    }
+    CX_DEBUG_EXIT_FUNCTION();
+}
+
+/*!
+    Update the quality indicator
+*/
+void CxuiStillPrecaptureView::updateQualityIcon()
+{
+    CX_DEBUG_ENTER_FUNCTION();
+
+    if (mQualityIcon && mEngine) {
+        QString icon = "";
+        int currentValue = mEngine->settings().get<int>(CxeSettingIds::IMAGE_QUALITY, -1);
+        icon = getSettingItemIcon(CxeSettingIds::IMAGE_QUALITY, currentValue);
+
+        mQualityIcon->setIcon(HbIcon(icon));
+    }
+
+    CX_DEBUG_EXIT_FUNCTION();
+}
+
+void CxuiStillPrecaptureView::handleSnapshot(CxeError::Id error)
+{
+    CX_DEBUG_ENTER_FUNCTION();
+
+    if (mPendingAfCanceling) {
+        mPendingAfCanceling = false;
+        mEngine->autoFocusControl().cancel();
+    }
+
+    if (error == CxeError::None) {
+        // Enging may emit snapshot events even if we don't need the snapshot.
+        // Check if postcapture is actually wanted and change view now if so.
+        if(isPostcaptureOn()) {
+            emit changeToPostcaptureView();
+            if (mSlider) {
+                mSlider->hide();
+            }
+        }
+    } else {
+        emit errorEncountered(error);
+    }
+
+    CX_DEBUG_EXIT_FUNCTION();
+}
+
+
+/*!
+     Method for starting focusing which will be followed by capture.
+     Meant for selftimer purposes. If autofocusing is not supported, capture
+     will start without focusing.
+
+     \sa capture()
+     \sa handleAutofocusKeyPressed()
+     \sa handleCaptureKeyPressed()
+     \sa setCapturePending()
+ */
+void CxuiStillPrecaptureView::focusAndCapture()
+{
+    CX_DEBUG_ENTER_FUNCTION();
+
+    if (!mEngine->autoFocusControl().supported() ||
+         mEngine->autoFocusControl().isFixedFocusMode(mEngine->autoFocusControl().mode())) {
+        // autofocus is not supported, so start capturing straight away
+        capture();
+    } else {
+        setCapturePending();
+        // start focusing
+        // Auto-focus can only work if viewfinder is running
+        if (mEngine->viewfinderControl().state() == CxeViewfinderControl::Running) {
+            mEngine->autoFocusControl().start(false);
+        }
+    }
+
+    CX_DEBUG_EXIT_FUNCTION();
+}
+
+void CxuiStillPrecaptureView::capture()
+{
+    CX_DEBUG_ENTER_FUNCTION();
+    mCapturePending = false;
+
+    if (mEngine->mode() == Cxe::ImageMode) {
+        // do not start capturing, if it is already ongoing
+        // the user might be repeatedly triggering capture key
+        if (mEngine->stillCaptureControl().state() == CxeStillCaptureControl::Ready) {
+            // If focusing in progress, cancel it now.
+            // Set capture pending and continue once focusing is cancelled.
+            if(mEngine->autoFocusControl().state() == CxeAutoFocusControl::InProgress) {
+                mEngine->autoFocusControl().cancel();
+                setCapturePending();
+            } else {
+                // Engine uses disk space *estimate* for imagesLeft() so it
+                // should not cause significant delay / additional shutter lag.
+                if (mEngine->stillCaptureControl().imagesLeft()) {
+                    mEngine->stillCaptureControl().reset();  //! @todo: Do not delete snapshots before images are really saved
+                    mEngine->stillCaptureControl().capture();
+                } else {
+                    // Inform that error was encountered.
+                    // Error manager will show necessary message to user.
+                    emit errorEncountered(CxeError::DiskFull);
+                }
+            }
+        } else {
+            setCapturePending();
+        }
+    }
+
+    // after capturing check what is the new amount for images left
+    updateImagesLeftLabel();
+    CX_DEBUG_EXIT_FUNCTION();
+}
+
+void CxuiStillPrecaptureView::setCapturePending()
+{
+    CX_DEBUG_ENTER_FUNCTION();
+    mCapturePending = true;
+    QTimer::singleShot(CXUI_CAPTURE_PENDING_TIMEOUT, this, SLOT(resetCapturePendingFlag()));
+    CX_DEBUG_EXIT_FUNCTION();
+}
+
+
+void CxuiStillPrecaptureView::goToVideo()
+{
+    CX_DEBUG_ENTER_FUNCTION();
+    OstTrace0( camerax_performance, DUP1_CXUISTILLPRECAPTUREVIEW_GOTOVIDEO, "msg: e_CX_GO_TO_VIDEO_MODE 1" );
+
+    hideControls();
+    mEngine->initMode(VideoMode);
+    emit changeToPrecaptureView();
+
+    CX_DEBUG_EXIT_FUNCTION();
+}
+
+/*!
+    CxuiStillPrecaptureView::handleAutoFocusStateChanged
+
+    \sa focusAndCapture()
+    \sa capture()
+    \sa handleAutofocusKeyPressed()
+*/
+void CxuiStillPrecaptureView::handleAutoFocusStateChanged(CxeAutoFocusControl::State newstate, CxeError::Id error)
+{
+    CX_DEBUG_ENTER_FUNCTION();
+    CxeAutoFocusControl::Mode mode = mEngine->autoFocusControl().mode();
+    CX_DEBUG( ("CxuiStillPrecaptureView::handleAutoFocusStateChanged <> error: %d mode: %d state %d", error, mode,
+            newstate ) );
+
+
+    switch (newstate) {
+    case CxeAutoFocusControl::Failed:
+    case CxeAutoFocusControl::Ready:
+        if (mCapturePending) {
+            // focus and capture were grouped together, capture straight away
+            capture();
+        }
+        break;
+    case CxeAutoFocusControl::Unknown:
+        // Capture key was pressed, focus has been cancelled,
+        // continue with capturing.
+        if(mCapturePending) {
+            CX_DEBUG(("mCapturePending is true, starting capture now"));
+            capture();
+        }
+        break;
+    default:
+        break;
+    }
+
+    CX_DEBUG_EXIT_FUNCTION();
+}
+
+
+/*!
+* Handle capture key full press.
+*/
+void CxuiStillPrecaptureView::handleCaptureKeyPressed()
+{
+    CX_DEBUG_ENTER_FUNCTION();
+    if (mEngine->mode() == Cxe::ImageMode) {
+        OstTrace0(camerax_performance, CXUISTILLPRECAPTUREVIEW_SHOT_TO_SHOT, "msg: e_CX_SHOT_TO_SHOT 1");
+        OstTrace0(camerax_performance, CXUISTILLPRECAPTUREVIEW_SHOT_TO_SNAP, "msg: e_CX_SHOT_TO_SNAPSHOT 1");
+        OstTrace0(camerax_performance, CXUISTILLPRECAPTUREVIEW_SHOT_TO_SAVE, "msg: e_CX_SHOT_TO_SAVE 1");
+
+        menu()->close();
+
+        // close open dialogs
+        closeDialogs();
+
+        if (mSelfTimer && mSelfTimer->isEnabled() ) {
+            if (mSelfTimer->isOngoing()) {
+                // dismiss selftimer and capture image
+                mSelfTimer->cancel();
+                capture();
+            } else {
+                // start selftimer if it is enabled and not yet started
+                mSelfTimer->startTimer();
+            }
+        } else {
+            // normal capture
+            capture();
+        }
+    }
+    CX_DEBUG_EXIT_FUNCTION();
+}
+
+/*!
+* Handle capture key half pressed (aka "autofocus key press").
+*/
+void CxuiStillPrecaptureView::handleAutofocusKeyPressed()
+{
+    CX_DEBUG_ENTER_FUNCTION();
+    OstTrace0( camerax_performance, CXUISTILLPRECAPTUREVIEW_AUTOFOCUS, "msg: e_CX_AUTOFOCUS_LOCK 1" );
+
+    // Base class handling needs to happen first to keep e.g. settings dialogs handling sane.
+    CxuiPrecaptureView::handleAutofocusKeyPressed();
+
+    if (!mEngine->autoFocusControl().supported()) {
+        CX_DEBUG(("Autofocus not supported, ignoring key press"));
+        CX_DEBUG_EXIT_FUNCTION();
+        return;
+    }
+
+    // in case of selftimer being enabled, autofocuskey does not start focusing
+    if (mSelfTimer && mSelfTimer->isEnabled()){
+        CX_DEBUG(("Selftimer enabled, ignoring autofocus key press"));
+        CX_DEBUG_EXIT_FUNCTION();
+        return;
+    }
+
+    // Auto-focus can only work if viewfinder is running
+    if (mEngine->viewfinderControl().state() == CxeViewfinderControl::Running) {
+
+        mEngine->autoFocusControl().start();
+    }
+
+    CX_DEBUG_EXIT_FUNCTION();
+}
+
+void CxuiStillPrecaptureView::handleAutofocusKeyReleased()
+{
+    CX_DEBUG_ENTER_FUNCTION();
+
+    // in case of selftimer being enabled, autofocuskey should not do anything
+    if (mSelfTimer && mSelfTimer->isEnabled()){
+        CX_DEBUG(("Selftimer enabled, ignoring autofocus key release"));
+        CX_DEBUG_EXIT_FUNCTION();
+        return;
+    }
+
+    if (mEngine->autoFocusControl().supported()) {
+        // Check that capture is not in progress, or pending.
+        // Otherwise wouldn't want to cancel the focus.
+        CxeStillCaptureControl::State state(mEngine->stillCaptureControl().state());
+        if (state != CxeStillCaptureControl::Capturing && !mCapturePending) {
+            mEngine->autoFocusControl().cancel();
+        } else {
+            // set pending AF release
+            mPendingAfCanceling = true;
+        }
+
+    } else {
+        CX_DEBUG(("Autofocus not supported, ignoring key release"));
+    }
+
+    CX_DEBUG_EXIT_FUNCTION();
+}
+
+void CxuiStillPrecaptureView::showEvent(QShowEvent *event)
+{
+    CxuiPrecaptureView::showEvent(event);
+
+    updateImagesLeftLabel();
+    updateQualityIcon();
+    updateFaceTrackingIcon();
+
+    // cancel selftimer when returning to precapture
+    // since selftimer needs to be turned off after capturing an image
+    // (with selftimer postcapture is always shown)
+    if (mSelfTimer && mSelfTimer->isEnabled()) {
+        mSelfTimer->cancel();
+    }
+
+    // In case the user presses and holds the auto-focus key (ie. half-press)
+    // in post-capture view, we need to start auto-focusing when entering
+    // the still precapture view.
+    if (event->type() == QEvent::Show &&
+            mCaptureKeyHandler && mCaptureKeyHandler->isAutofocusKeyPressed()) {
+
+        CX_DEBUG(("Still pre-capture coming visible and auto-focus key pressed -> starting AF"));
+        handleAutofocusKeyPressed();
+    }
+}
+
+/*!
+* Allow showing UI controls?
+*/
+bool CxuiStillPrecaptureView::allowShowControls() const
+{
+    // show controls when selftimer counter is not active
+    // and when autofocus key is not being pressed
+    bool engineOk(mEngine && mEngine->isEngineReady());
+    bool selfTimerOk(!mSelfTimer || !mSelfTimer->isOngoing());
+    bool keysOk(!mCaptureKeyHandler || !mCaptureKeyHandler->isAutofocusKeyPressed());
+
+    return engineOk && selfTimerOk && keysOk;
+}
+
+/*!
+* Handle change in viewfinder state.
+*/
+void CxuiStillPrecaptureView::handleViewfinderStateChanged(
+    CxeViewfinderControl::State newState, CxeError::Id error)
+{
+    CX_DEBUG_ENTER_FUNCTION();
+    // Call base class to get standby timer and display always visible when needed.
+    CxuiPrecaptureView::handleVfStateChanged(newState, error);
+
+    if (newState == CxeViewfinderControl::Running) {
+
+        // the toolbar is created when the viewfinder is started the first time
+        // in order to hide the delay caused by the creation
+        if(!mWidgetsLoaded) {
+            loadWidgets();
+        }
+
+        if(mMainWindow->currentView() == this &&
+            mCaptureKeyHandler->isAutofocusKeyPressed()) {
+            // Viewfinder just started and the user is pressing the auto-focus key.
+            // Start focusing.
+
+            CX_DEBUG(("Viewfinder starting and auto-focus key pressed -> starting AF"));
+            handleAutofocusKeyPressed();
+        }
+    }
+
+    CX_DEBUG_EXIT_FUNCTION();
+}
+
+void CxuiStillPrecaptureView::handleStillCaptureStateChanged(
+    CxeStillCaptureControl::State newState, CxeError::Id /*error*/)
+{
+    if (newState == CxeStillCaptureControl::Ready) {
+        OstTrace0(camerax_performance, DUP1_CXUISTILLPRECAPTUREVIEW_SHOT_TO_SHOT, "msg: e_CX_SHOT_TO_SHOT 0");
+
+        if (mCapturePending) {
+            CX_DEBUG(("mCapturePending is true, starting capture now"));
+            capture();
+        }
+    }
+}
+
+/*!
+ * Signal used to reset mCapturePending after a short timeout. If the image
+ * cannot be captured within a given time of the key press, it is better to cancel
+ * the whole operation.
+ */
+void CxuiStillPrecaptureView::resetCapturePendingFlag()
+{
+    CX_DEBUG_IN_FUNCTION();
+
+    mCapturePending = false;
+}
+
+/*
+    Slot for handling scene mode change
+    \param scene QVariantMap containing settings related to the new scene mode
+ */
+void CxuiStillPrecaptureView::handleSceneChanged(const QVariant &newSceneData)
+{
+    CX_DEBUG_ENTER_FUNCTION();
+    if (mEngine->mode() == Cxe::ImageMode) {
+
+        CxeScene scene = newSceneData.toMap();
+        // update toolbar scene mode icon
+        updateSceneIcon(scene[CxeSettingIds::SCENE_ID].toString());
+
+        // for now, we are only interested in flashmode change
+        if (scene.contains(CxeSettingIds::FLASH_MODE)) {
+            CX_DEBUG(("updating flash to: %d", scene[CxeSettingIds::FLASH_MODE].value<int>()));
+            handleSettingValueChanged(CxeSettingIds::FLASH_MODE, scene[CxeSettingIds::FLASH_MODE]);
+        } else {
+            // No flash mode specified within the scene.
+            // Check from setting model what is it currently.
+            Cxe::FlashMode flashMode = mEngine->settings().get<Cxe::FlashMode>(CxeSettingIds::FLASH_MODE, Cxe::FlashAuto);
+            handleSettingValueChanged(CxeSettingIds::FLASH_MODE, QVariant(flashMode));
+        }
+
+        // If facetracking is changed, we need to update the indicator icon
+        if (scene.contains(CxeSettingIds::FACE_TRACKING)) {
+            handleSettingValueChanged(CxeSettingIds::FACE_TRACKING, scene[CxeSettingIds::FACE_TRACKING]);
+        }
+
+    }
+
+    CX_DEBUG_EXIT_FUNCTION();
+}
+
+/*!
+* Enter standby mode.
+*/
+void CxuiStillPrecaptureView::enterStandby()
+{
+    CX_DEBUG_ENTER_FUNCTION();
+
+    if (mSelfTimer && mSelfTimer->isOngoing()) {
+        // If self-timer is running, stop and reset the delay now.
+        mSelfTimer->reset();
+    }
+
+    // Base class handles releasing camera.
+    CxuiPrecaptureView::enterStandby();
+
+    CX_DEBUG_EXIT_FUNCTION();
+}
+
+/*
+    Slot for handling setting value changes. Notice that changing the scene mode
+    does not emit settingValueChanged signal.
+    \param key      CxSettingIds key defining the changed setting
+    \param newValue QVariant containing the new setting value
+
+    \sa CxuiStillPrecaptureView::handleSceneChanged(CxeScene &scene)
+ */
+void CxuiStillPrecaptureView::handleSettingValueChanged(const QString& key, QVariant newValue)
+{
+    CX_DEBUG_ENTER_FUNCTION();
+
+    if (mEngine->mode() == Cxe::ImageMode) {
+
+        // update images left and image quality icons
+        if (key == CxeSettingIds::IMAGE_QUALITY) {
+            // update the quality indicator on screen
+            updateQualityIcon();
+            // update images left when quality values are changed
+            updateImagesLeftLabel();
+        } else if (key == CxeSettingIds::FACE_TRACKING) {
+            reloadIndicatorWidgets();
+            updateFaceTrackingIcon();
+        } else if (key == CxeSettingIds::GEOTAGGING) {
+            reloadIndicatorWidgets();
+        }
+
+        // update toolbar flash icon
+        if (mFlashSetting && key == CxeSettingIds::FLASH_MODE) {
+            CX_DEBUG((("flash mode: %d"), newValue.toInt()));
+            QString icon = getSettingItemIcon(key, newValue);
+            CX_DEBUG((("flash mode icon: %s"), icon.toAscii().constData()))
+            mFlashSetting->setIcon(HbIcon(icon));
+        }
+
+    }
+
+    CX_DEBUG_EXIT_FUNCTION();
+}
+
+
+/*!
+    Close open dialogs.
+*/
+void CxuiStillPrecaptureView::closeDialogs()
+{
+
+    if (mSettingsDialog && mSettingsDialog->isVisible()) {
+        mSettingsDialog->close();
+    }
+
+    if (mSceneModePopup && mSceneModePopup->isVisible()) {
+        mSceneModePopup->close();
+    }
+
+    if (mStillSettingsPopup && mStillSettingsPopup->isVisible()) {
+        mStillSettingsPopup->close();
+    }
+
+    hideSettingsGrid();
+}
+
+
+/*!
+*Helper method to create setting dialog
+*/
+void CxuiStillPrecaptureView::launchSetting()
+{
+    CX_DEBUG_ENTER_FUNCTION();
+
+    QObject *action = sender();
+
+    if (action) {
+        QString settingsKey = action->property(PROPERTY_KEY_SETTING_ID).toString();
+        CX_DEBUG(("settingsKey=%s", settingsKey.toAscii().constData()));
+        launchSettingsDialog(action);
+        // special case to get value changed event to the selftimer class
+        if (settingsKey == CxeSettingIds::SELF_TIMER) {
+            // selftimer is not found in settings so set the value now
+            mSettingsDialogList->setOriginalSelectedItemByValue(mSelfTimer->getTimeout());
+            connect(mSettingsDialogList, SIGNAL(valueSelected(int)),
+                    mSelfTimer, SLOT(changeTimeOut(int)));
+        }
+    }
+
+    CX_DEBUG_EXIT_FUNCTION();
+}
+
+/*!
+    Update the images left counter
+*/
+void CxuiStillPrecaptureView::updateImagesLeftLabel()
+{
+    CX_DEBUG_ENTER_FUNCTION();
+
+    if (mImagesLeft && mImagesLeftContainer) {
+        int images = mEngine->stillCaptureControl().imagesLeft();
+
+        if (images > CXUI_IMAGES_LEFT_LIMIT) {
+            mImagesLeftContainer->hide();
+        } else {
+            mImagesLeftContainer->show();
+        }
+
+        CX_DEBUG(("Images left %d", images));
+        mImagesLeft->setPlainText(hbTrId("txt_cam_fullscreen_imagesleft").arg(images));
+    }
+
+    CX_DEBUG_EXIT_FUNCTION();
+}
+
+/*!
+    Update the face tracking icon
+*/
+void CxuiStillPrecaptureView::updateFaceTrackingIcon()
+{
+    CX_DEBUG_ENTER_FUNCTION();
+    if (mFaceTrackingIcon && mEngine) {
+        QString key = "";
+        QString icon = "";
+
+        key = CxeSettingIds::FACE_TRACKING;
+
+        int currentValue = mEngine->settings().get<int>(key, -1);
+        icon = getSettingItemIcon(key, currentValue);
+
+        mFaceTrackingIcon->setIcon(HbIcon(icon));
+    }
+
+    CX_DEBUG_EXIT_FUNCTION();
+}
+
+// end of file