/****************************************************************************

**

** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (developer.feedback@nokia.com)

**

** This file is part of the HbWidgets module of the UI Extensions for Mobile.

**

** GNU Lesser General Public License Usage

** This file may be used under the terms of the GNU Lesser General Public

** License version 2.1 as published by the Free Software Foundation and

** appearing in the file LICENSE.LGPL included in the packaging of this file.

** Please review the following information to ensure the GNU Lesser General

** Public License version 2.1 requirements will be met:

** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

**

** In addition, as a special exception, Nokia gives you certain additional

** rights.  These rights are described in the Nokia Qt LGPL Exception

** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

**

** If you have questions regarding the use of this file, please contact

** Nokia at developer.feedback@nokia.com.

**

****************************************************************************/

#ifndef HBABSTRACTVIEWITEM_P_H

#define HBABSTRACTVIEWITEM_P_H

#include "hbabstractviewitem.h"

#include <hbwidget_p.h>

#include <hbeffect.h>

#include <hbframebackground.h>

#include <hbnamespace.h>

#include <QObject>

#include <QPersistentModelIndex>

#include <QPointer>

#include <QExplicitlySharedDataPointer>

#include <QSharedData>

class HbAbstractItemView;

class QGraphicsItem;

class QTimer;

class QGestureEvent;

#define HB_SD(Class) Class##Shared * sd = (Class##Shared *)(d->mSharedData.data())

#define HB_SDD(Class) Q_D(Class); Class##Shared * sd = (Class##Shared *)(d->mSharedData.data())

class HbAbstractViewItemShared : public QObject, public QSharedData

{

    Q_OBJECT

    public:

        HbAbstractViewItemShared() :

          mPrototype(0),

          mItemView(0),

          mDefaultFrame(),

          mItemType("viewitem"),

          mPressStateChangeTimer(0),

          mPressedItem(0)

        {

        }

    public slots:

        void pressStateChangeTimerTriggered();

    public:

        HbAbstractViewItem *mPrototype;

        HbAbstractItemView *mItemView;

        QList<HbAbstractViewItem *> mCloneItems;

        HbFrameBackground mDefaultFrame;

        QString mItemType;

        static const int ViewItemDeferredDeleteEvent;

        QTimer *mPressStateChangeTimer;

        HbAbstractViewItem *mPressedItem;

        bool mAnimatePress;

};

class HbAbstractViewItemPrivate : public HbWidgetPrivate

{

    Q_DECLARE_PUBLIC( HbAbstractViewItem )

    public:

          HbWidgetPrivate(),

          mFocused(false),

          mBackgroundItem(0),

          mFrame(0),

          mCheckState(Qt::Unchecked),

          mSelectionItem(0),

          mModelItemType(Hb::StandardItem),

          mRepolishRequested(false),

          mContentChangedSupported(false),

          mItemsChanged(false),

          mSizeHintPolish(false),

          mPressed(false),

          mFocusItem(0),

          mMultiSelectionTouchArea(0),                    

          mSharedData(shared)

        {

            if (!mSharedData) {

                mSharedData = new HbAbstractViewItemShared;

            }

            mSharedData->mPrototype = prototype;

        }

        HbAbstractViewItemPrivate(const HbAbstractViewItemPrivate &source) :

            HbWidgetPrivate(),

            mIndex(source.mIndex),

            mFocused(source.mFocused),

            mBackgroundItem(0),

            mFrame(0),

            mCheckState(source.mCheckState),

            mSelectionItem(0),

            mModelItemType(source.mModelItemType),

            mRepolishRequested(false),

            mContentChangedSupported(source.mContentChangedSupported),

            mItemsChanged(false),

            mSizeHintPolish(false),

            mPressed(false),

            mFocusItem(0),

            mMultiSelectionTouchArea(0),

            mSharedData(source.mSharedData)

        {

        }

        HbAbstractViewItemPrivate &operator=(const HbAbstractViewItemPrivate &source)

        {

            mIndex = source.mIndex;

            mFocused = source.mFocused;

            mBackgroundItem = 0;

            mBackground = QVariant();

            mFrame = 0;

            mCheckState = Qt::Unchecked;

            mModelItemType = source.mModelItemType;

            mSelectionItem = 0;

            mRepolishRequested = false;

            mContentChangedSupported = source.mContentChangedSupported;

            mItemsChanged = false;

            mSizeHintPolish = false;

            mPressed = false;

            mFocusItem = 0;

            mSharedData = source.mSharedData;

            mMultiSelectionTouchArea = 0;

            return *this;

        }

        void init();

        inline bool isPrototype() const

        {

            Q_Q(const HbAbstractViewItem);

            return q == mSharedData->mPrototype;

        }

        virtual int modelItemType() const;

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

        void repolishCloneItems();

        void updateCloneItems(bool updateChildItems);

        virtual void setInsidePopup(bool insidePopup);

        virtual void tapTriggered(QGestureEvent *event);

        void revealItem();

        void setPressed(bool pressed, bool animate);

public:

        QPersistentModelIndex mIndex;

        bool mFocused;

        QGraphicsItem *mBackgroundItem;

        QVariant mBackground;

        QGraphicsItem *mFrame;

        Qt::CheckState mCheckState;

        QGraphicsItem *mSelectionItem;

        int mModelItemType;

        bool mRepolishRequested;

        // whether mContentChanged flag is supported

        bool mContentChangedSupported;

        // Status of child item existence changed.

        bool mItemsChanged;

        mutable bool mSizeHintPolish;

        bool mPressed;

        QGraphicsItem *mFocusItem;

        QGraphicsItem *mMultiSelectionTouchArea;

        QExplicitlySharedDataPointer<HbAbstractViewItemShared> mSharedData;

};

#endif /*HBABSTRACTVIEWITEM_P_H*/