/*

* 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 <hbscrollarea.h>

#include <hbeffect.h>

//Qt/Orbit forward declarations

class QTimer;

class HbIconItem;

class HbMainWindow;

class HbPushButton;

class HbMainWindow;

class QGraphicsItem;

class HbDocumentLoader;

class HbAbstractDataModel;

//User Forward Declarations

class GlxSlideShowEffectEngine;

#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

} GlxSlideShowEvent;

class GlxSlideShowWidget : public HbScrollArea

{

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 mouseReleaseEvent( QGraphicsSceneMouseEvent *event);

    void mousePressEvent ( QGraphicsSceneMouseEvent * event ) ;

private :

    //clear all the model connection

    void clearCurrentModel();

    //add the connection to the model

    void initializeNewModel();

    void resetSlideShow();

    void setIconItems(int moveDir);

    void setItemPos(int moveDir);

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

    void addConnections();

    void removeConnections();

private:

    GlxSlideShowEffectEngine *mEffectEngine;

    HbIconItem               *mIconItems[NBR_ITEM]; 

    HbPushButton             *mContinueButton;

    int                      mItemIndex;

    int                      mSelIndex;

    QTimer                   *mSlideTimer;

    QAbstractItemModel       *mModel;

    QRect                    mScreenRect;

    QList <QGraphicsItem *>  mItemList;

    bool                     mIsPause;

};

#endif /* GLXSLIDESHOWWIDGET_H */