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

**

** 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 HBGRIDVIEW_P_H

#define HBGRIDVIEW_P_H

#include <hbabstractitemview_p.h>

#include <hbgriditemcontainer_p.h>

#include <hbgridview.h>

#include <hbgridviewitem_p.h>

class HbGridViewParams;

class HbGridViewPrivate: public HbAbstractItemViewPrivate

{

    Q_DECLARE_PUBLIC(HbGridView)

public:

    HbGridViewPrivate();

    virtual ~HbGridViewPrivate();

    void init();

    QModelIndex itemIndexUnder(const QPointF& point);

    bool visible(HbAbstractViewItem* item, bool fullyVisible = true) const;

    inline HbGridItemContainer *itemContainer() const;

    qreal calculateScrollBarPos() const;

    qreal calculateScrollBarThumbSize() const;

    void updateScrollBar(Qt::Orientation orientation);

    void setScrollBarMetrics(Qt::Orientation orientation);

    void setContentPosition(qreal value, Qt::Orientation orientation, bool animate);

    inline int getScrollDirectionColumnCount() const;

    inline int getScrollDirectionRowCount() const;

    inline HbScrollBar *getScrollDirectionScrollBar() const;

    inline qreal getScrollDirectionContainerPos() const;

    inline qreal getScrollDirectionItemSize() const;

    inline QModelIndex indexInTheCenter() const;

    QModelIndex indexInTheCenter(Qt::Orientations scrollDirection) const;

public:

    bool mIconVisible;

    bool mTextVisible;

    bool mSwapDimensionsOnOrientationChange;

    void relayout();

    void setIconVisible(bool iconVisible);

    void setTextVisible(bool textVisible);

private:

    static HbGridViewPrivate *d_ptr(HbGridView *view)

    {

        Q_ASSERT(view);

        return view->d_func();

    }

    friend class HbGridViewItem;

};

inline HbGridItemContainer *HbGridViewPrivate::itemContainer() const

{

    return qobject_cast<HbGridItemContainer *> (mContainer);

}

inline int HbGridViewPrivate::getScrollDirectionColumnCount() const

{

    return (mScrollDirections == Qt::Vertical) ?

        itemContainer()->columnCount() : itemContainer()->rowCount();

}

inline int HbGridViewPrivate::getScrollDirectionRowCount() const

{

    return (mScrollDirections == Qt::Vertical) ?

        itemContainer()->rowCount() : itemContainer()->columnCount();

}

inline HbScrollBar *HbGridViewPrivate::getScrollDirectionScrollBar() const

{

    return (mScrollDirections == Qt::Vertical) ?

        mVerticalScrollBar : mHorizontalScrollBar;

}

inline qreal HbGridViewPrivate::getScrollDirectionContainerPos() const

{

    return (mScrollDirections == Qt::Vertical) ?

        mContainer->pos().y() : mContainer->pos().x();

}

inline qreal HbGridViewPrivate::getScrollDirectionItemSize() const

{

    // caller responsibility to check if container has any item

    return (mScrollDirections == Qt::Vertical) ?

        mContainer->items().first()->size().height()

        : mContainer->items().first()->size().width();

}

QModelIndex HbGridViewPrivate::indexInTheCenter() const

{

    return indexInTheCenter(mScrollDirections);

}

#endif /*HBGRIDVIEW_P_H*/