/*

* 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:

*

*/

#ifndef HGINDEXFEEDBACKPRIVATE_H

#define HGINDEXFEEDBACKPRIVATE_H

#include "hgindexfeedback.h"

#define HB_INDEXFEEDBACK_TYPE "indexfeedback"

#define EFFECT_IFAPPEAR "appear"

#define EFFECT_IFDISAPPEAR "disappear"

QT_BEGIN_NAMESPACE

class QGraphicsWidget;

class QGraphicsItem;

class QRectF;

class QItemSelectionModel;

QT_END_NAMESPACE

{

    Q_DECLARE_PUBLIC( HgIndexFeedback )

public:

    HgIndexFeedbackPrivate();

    virtual ~HgIndexFeedbackPrivate();

    void init();

    void showIndexFeedback();

    void updateIndex();

    void scrollBarPressed();

    void scrollBarReleased();

    void disconnectItemView();

    void connectModelToIndexFeedback(QItemSelectionModel* model);

    void _q_scrollPositionChanged(qreal value, Qt::Orientation orientation);

    void _q_hideIndexFeedback();

    void _q_itemViewDestroyed();

    void _q_hideIndexFeedbackNow();

    void _q_currentModelIndexChanged(const QModelIndex& current, const QModelIndex& previous);

    void updatePrimitives();

    void createPrimitives();

    void calculatePopupRects();

    qreal textHeight() const;

    qreal textWidth() const;

    QString displayText(const QVariant &data) const;

public:

    int mIndexFeedbackPressTimeout;

    int mIndexFeedbackDwellTimeout;

    int mIndexFeedbackReleaseTimeout;

    HgWidget::IndexFeedbackPolicy mIndexFeedbackPolicy;

    // TODO::The values are storred here is a work around for a bug in hbscrollbar.

    // the bug is that the value changed signal is emitted when the thumb

    // is pressed, and again when it is released, regaurdless of if there was a value change.

    // once that bug is fixed, this should be removed.

    qreal mScrollBarValue;

    QTimer *mIndexFeedbackTimer;

    QTimer *mDisappearTimer;

    QString mPopupContent;

    QGraphicsItem *mTextItem;

    QGraphicsItem *mPopupItem;

    QRectF mPopupTextRect;

    QRectF mPopupBackgroundRect;

    QRectF mItemViewContentsRect;

    qreal mOneCharHeight;

    qreal mThreeCharHeight;

    qreal mThreeCharWidth;

    qreal mStringOffset;

    HgWidget* mWidget;

    QList<QGraphicsItem*> mPopupItemList;

    bool mScrollBarPressed;

};

#endif //HBINDEXFEEDBACKPRIVATE_H