/*

* 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:

*

*/

#ifndef CXUISTILLPRECAPTUREVIEW_H

#define CXUISTILLPRECAPTUREVIEW_H

#include <QMetaType>

#include "cxuiprecaptureview.h"

#include "cxeautofocuscontrol.h"

#include "cxeviewfindercontrol.h"

#include "cxestillcapturecontrol.h"

#include "cxeerror.h"

#include "cxenamespace.h"

class HbListWidgetItem;

class HbListWidget;

class CxuiCaptureKeyHandler;

class CxuiDocumentLoader;

class HbAction;

class HbDialog;

class CxuiSelfTimer;

class HbPushButton;

class HbLabel;

class CxuiSelfTimerRadioButtonList;

class HbToolBarExtension;

class HbWidget;

/**

 * Pre-capture view for still image mode

 */

class CxuiStillPrecaptureView : public CxuiPrecaptureView

{

    Q_OBJECT

public:

    CxuiStillPrecaptureView(QGraphicsItem *parent = 0);

    virtual ~CxuiStillPrecaptureView();

public:

    /**

     * 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

     */

    virtual void construct(HbMainWindow *mainwindow, CxeEngine *engine,

                   CxuiDocumentLoader *documentLoader, CxuiCaptureKeyHandler *keyHandler = NULL);

    /**

     * Loads default widgets in layouts xml.

     */

    virtual void loadDefaultWidgets();

    /**

     * Loads widgets that are not part of the default section in layouts xml.

     * Widgets are created at the time they are first loaded.

     */

    virtual void loadWidgets();

protected:

    void showEvent(QShowEvent *event);

    virtual bool allowShowControls() const;

public slots:

    // from CxuiPrecaptureView

    virtual void handleSettingValueChanged(const QString& key, QVariant newValue);

    // whenever a scene setting is changed on the engine side, an icon might need updating on the toolbar

    // connects to the sceneChanged signal of CxeSettings

    void handleSceneChanged(CxeScene &scene);

protected slots:

    void focusAndCapture();

    void capture();

    void setCapturePending();

    void goToVideo();

    // Key events

    void handleCaptureKeyPressed();

    void handleAutofocusKeyPressed();

    void handleAutofocusKeyReleased();

    // Engine signals

    void handleAutoFocusStateChanged(CxeAutoFocusControl::State newState, CxeError::Id error);

    void handleViewfinderStateChanged(CxeViewfinderControl::State newState, CxeError::Id error);

    void handleStillCaptureStateChanged(CxeStillCaptureControl::State newState, CxeError::Id error);

    void handleSnapshot(CxeError::Id error);

    /**

     * 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 resetCapturePendingFlag();

    /**

     * Application focus slots are called if focus state is changed.

     * Camera is released or reserved according to new state.

     */

    void handleFocusLost();

    void launchSetting();

    void updateImagesLeftLabel();

protected:

    void initializeSettingsGrid();

    void closeDialogs();

protected:

    CxuiSelfTimer *mSelfTimer;

    HbAction *mFlashSetting;

    HbDialog *mStillSettingsPopup;

    HbDialog *mSceneModePopup;

    /**

     * Capture key was pressed while engine was not ready... Capture when possible.

     * This flag is reset after a short delay at resetCapturePendingFlag().

     */

    bool mCapturePending;

    HbLabel *mImagesLeft;

    HbWidget *mImagesLeftContainer;

private:

    bool mPendingAfCanceling;

};

Q_DECLARE_METATYPE(QList<int>)

#endif // CXUISTILLPRECAPTUREVIEW_H