/*

* Copyright (c) 2009 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:   ?Description

*

*/

#ifndef GLXSLIDESHOWWIDGET_H

#define GLXSLIDESHOWWIDGET_H

//Includes

#include <hbwidget.h>

#include <hbeffect.h>

//Qt/Orbit forward declarations

class QTimer;

class QGestureEvent;

class HbIconItem;

class HbMainWindow;

class HbPushButton;

class HbMainWindow;

class QGraphicsItem;

class HbDocumentLoader;

class HbAbstractDataModel;

class HbLabel;

//User Forward Declarations

class GlxEffectEngine;

class GlxSettingInterface;

#define NBR_ITEM 3

typedef enum

{

    UI_ON_EVENT, //send the signal when user tap on screen ( on the UI )

    UI_OFF_EVENT, //send the signal when user press continous button ( off the UI)

    EMPTY_DATA_EVENT, //send the signal when model have no data

    EFFECT_STARTED  // sends the signal when effect is started.

} GlxSlideShowEvent;

class GlxSlideShowWidget : public HbWidget

{

Q_OBJECT

public :

    GlxSlideShowWidget (QGraphicsItem *parent = NULL);

    ~GlxSlideShowWidget ();

    void setModel (QAbstractItemModel *model);

    void setItemGeometry(QRect screenRect);

    void startSlideShow();

    void stopSlideShow();

    /*

     * Initialise the slideshow widget

     * creation of the icons are done here

     */

    void setSlideShowWidget(HbDocumentLoader *DocLoader);

    /*

     * Cleans up the slide show widget

     */

    void cleanUp();

signals:

    void slideShowEvent(GlxSlideShowEvent e);

    void indexchanged();

public slots :

    void triggeredEffect();

    void effectFinshed();

    void cancelEffect();

    void pauseSlideShow();

    void continueSlideShow(bool check);

    void dataChanged(QModelIndex startIndex, QModelIndex endIndex);

    void rowsInserted(const QModelIndex &parent, int start, int end);

    void rowsRemoved(const QModelIndex &parent, int start, int end);

    void modelDestroyed();

    void orientationChanged(QRect screenRect);

    void leftMoveEffectFinished( const HbEffect::EffectStatus &status );

    void rightMoveEffectFinished( const HbEffect::EffectStatus &status );

protected slots :

    void leftGesture (int value);

    void rightGesture (int value);

protected :

    void gestureEvent(QGestureEvent *event);

private :

    //clear all the model connection

    void clearCurrentModel();

    //add the connection to the model

    void initializeNewModel();

    void resetSlideShow();

    void moveImage( int nextIndex, int posX, const QString & move, char * callBack );

    void addConnections();

    void removeConnections();

    /*

     * To get the focus index

     */

    int getFocusIndex( );

    /*

     * To get the full screen icon of the image

     */

    HbIcon getIcon( int index );

    /*

     * To check the itemis corrupted or not

     */

    bool isCorrupt( int index );

    /*

     * To set the current ( focus ) item icon

     */

    bool setFocusItemIcon();

    /*

     * To set the next itme icon in the list

     */

    bool setNextItemIcon();

    /*

     * To set the previous icon in the list

     */

    bool setPreItemIcon();

    /*

     * In the case of all the image are corrupted then show the error notes

     */

    void showErrorNote();

    /*

     * It will hide the corrupted images note

     */

    void hideErrorNote();    

private:

    GlxEffectEngine          *mEffectEngine;

    GlxSettingInterface      *mSettings;               //no ownership

    HbIconItem               *mIconItems[ NBR_ITEM ]; 

    HbPushButton             *mContinueButton;

    HbLabel                  *mErrorNote ;               //when all the image are corrupted then show the no image label

    int                      mItemIndex;

    int                      mSelIndex[ NBR_ITEM ];

    QTimer                   *mSlideTimer;

    QAbstractItemModel       *mModel;

    QRect                    mScreenRect;

    QList <QGraphicsItem *>  mItemList;

    bool                     mIsPause;

    int                      mSlideShowItemCount;

};

#endif /* GLXSLIDESHOWWIDGET_H */