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

**

** 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.

**

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

#include "hbcolorgridviewitem_p.h"

#include <hbstyleoptioncolorgridviewitem_p.h>

#include <hbgridviewitem_p.h>

#include <hbcolorscheme.h>

#include <hbiconitem.h>

#include <hbevent.h>

/*!

  \primitives

  \primitive{cg-color-icon} HbIconItem representing the icon colored with this color item's color.

  \primitive{cg-border-icon} HbIconItem representing borders of the color item.

  \primitive{cg-selection-icon} HbIconItem representing the check mark of a selected color item.

  \primitive{background} HbFrameBackground representing the background frame.

  */

class HbColorGridViewItemPrivate: public HbGridViewItemPrivate

{

    Q_DECLARE_PUBLIC( HbColorGridViewItem )

public:

    explicit HbColorGridViewItemPrivate(HbAbstractViewItem *prototype);

    ~HbColorGridViewItemPrivate();

    void createPrimitives();

    void updatePrimitives();

    void updateChildItems();

    bool isChecked() const;

    bool isNoneBlock() const;

    // center of color field, colored according to color

    QGraphicsItem *mColorItem;

    // borders of color field, beneath mColorItem, or 'none' block

    QGraphicsItem *mBorderItem;

    // selection indication

    QGraphicsItem *mCheckMarkItem;

    // background frame, "grid"

    HbFrameBackground* mFrameBackGround;

private:

    static HbColorGridViewItemPrivate *d_ptr(HbColorGridViewItem *item)

    {

        Q_ASSERT(item);

        return item->d_func();

    } 

};

HbColorGridViewItemPrivate::HbColorGridViewItemPrivate(HbAbstractViewItem *prototype) 

    : HbGridViewItemPrivate(prototype),

      mColorItem(0),

      mBorderItem(0),

      mCheckMarkItem(0),

      mFrameBackGround(0)

{

}

HbColorGridViewItemPrivate::~HbColorGridViewItemPrivate()

{

    delete mFrameBackGround;

}

bool HbColorGridViewItemPrivate::isChecked() const

{

    return mIndex.data(Qt::CheckStateRole).value<bool>();

}

bool HbColorGridViewItemPrivate::isNoneBlock() const

{

    return mIndex.data(HbColorGridViewItem::ColorRole).value<bool>();

}

void HbColorGridViewItemPrivate::createPrimitives()

{

    Q_Q( HbColorGridViewItem );

    if (!mBorderItem ) {

        mBorderItem = HbStylePrivate::createPrimitive(HbStylePrivate::P_ColorGridViewItem_borderIcon, q);

        static_cast<HbIconItem*>(mBorderItem)->setFlags(HbIcon::Colorized);

        HbStyle::setItemName( mBorderItem, "cg-border-icon" );

     }

    if (!mColorItem && !isNoneBlock()) {

        mColorItem = HbStylePrivate::createPrimitive(HbStylePrivate::P_ColorGridViewItem_colorIcon, q);

        static_cast<HbIconItem*>(mColorItem)->setFlags(HbIcon::Colorized);

        HbStyle::setItemName( mColorItem, "cg-color-icon" );

    }

    if(!mCheckMarkItem) {

        mCheckMarkItem = HbStylePrivate::createPrimitive(HbStylePrivate::P_ColorGridViewItem_checkIcon, q);

        HbStyle::setItemName( mCheckMarkItem, "cg-selection-icon" );

    }

    if (!mFrameBackGround) {

        mFrameBackGround = new HbFrameBackground();

        mFrameBackGround->setFrameGraphicsName("qtg_fr_popup_grid_normal");

        mFrameBackGround->setFrameType(HbFrameDrawer::NinePieces);

        q->setDefaultFrame( *mFrameBackGround );

    }

}

void HbColorGridViewItemPrivate::updatePrimitives()

{  

    Q_Q( HbColorGridViewItem );

    HbStyleOptionColorGridViewItem option;

    q->initStyleOption(&option);

    if (mBorderItem) {

        HbStylePrivate::updatePrimitive(mBorderItem, HbStylePrivate::P_ColorGridViewItem_borderIcon, &option);

    }

    if (mColorItem) {

        HbStylePrivate::updatePrimitive(mColorItem, HbStylePrivate::P_ColorGridViewItem_colorIcon, &option);

    }

    if (mCheckMarkItem) {

        HbStylePrivate::updatePrimitive(mCheckMarkItem, HbStylePrivate::P_ColorGridViewItem_checkIcon, &option);

        if ( isChecked() ) {

            mCheckMarkItem->show();

        } else {

            mCheckMarkItem->hide();

        }

    }

}

void HbColorGridViewItemPrivate::updateChildItems()

{

    createPrimitives();

    updatePrimitives();     

}

HbColorGridViewItem::HbColorGridViewItem(QGraphicsItem *parent) :

    HbGridViewItem(*new HbColorGridViewItemPrivate(this), parent)

{

    Q_D( HbColorGridViewItem );

    d->q_ptr = this;   

    /* HbWidget::polish() will eventually call

       HbStylePrivate::updateThemedItems() which will overwrite our

       carefully set colors. Fortunately, call is behind flag.

     */

    d->themingPending = false;

}

HbColorGridViewItem::HbColorGridViewItem(HbColorGridViewItemPrivate &dd, QGraphicsItem *parent) :

    HbGridViewItem(dd, parent)

{

    Q_D( HbColorGridViewItem );

    d->q_ptr = this; 

    /* HbWidget::polish() will eventually call

       HbStylePrivate::updateThemedItems() which will overwrite our

       carefully set colors. Fortunately, call is behind flag.

     */

    d->themingPending = false;

}

/*!

 Copy constructor

 */

HbColorGridViewItem::HbColorGridViewItem(const HbColorGridViewItem &source) :

    HbGridViewItem(*new HbColorGridViewItemPrivate(*source.d_func()),

            source.parentItem())

{

    Q_D( HbColorGridViewItem );

    d->q_ptr = this;  

    /* HbWidget::polish() will eventually call

       HbStylePrivate::updateThemedItems() which will overwrite our

       carefully set colors. Fortunately, call is behind flag.

     */

    d->themingPending = false;

}

HbColorGridViewItem::~HbColorGridViewItem()

{

}

HbAbstractViewItem* HbColorGridViewItem::createItem()

{

    return new HbColorGridViewItem(*this);

}

void HbColorGridViewItem::updateChildItems()

{

    Q_D( HbColorGridViewItem );

    d->updateChildItems();

    HbGridViewItem::updateChildItems();

}

void HbColorGridViewItem::updatePrimitives()

{

    Q_D( HbColorGridViewItem );

    d->updatePrimitives();

    HbGridViewItem::updatePrimitives();

}

QGraphicsItem * HbColorGridViewItem::primitive(HbStyle::Primitive primitive) const

{

    Q_D( const HbColorGridViewItem );

    if ((HbStylePrivate::Primitive)primitive == HbStylePrivate::P_ColorGridViewItem_checkIcon) {

        return d->mCheckMarkItem;

    }

    if ((HbStylePrivate::Primitive)primitive == HbStylePrivate::P_ColorGridViewItem_colorIcon) {

        return d->mColorItem;

    }

    if ((HbStylePrivate::Primitive)primitive == HbStylePrivate::P_ColorGridViewItem_borderIcon) {

        return d->mBorderItem;

    }

    return HbGridViewItem::primitive(primitive);

}

void HbColorGridViewItem::initStyleOption(HbStyleOptionColorGridViewItem *option) const

{

    Q_D( const HbColorGridViewItem ); 

    if( d->isNoneBlock() && d->mBorderItem ) {

        option->borderIcon = "qtg_graf_colorpicker_empty";

    } else {

        option->borderIcon = "qtg_graf_colorpicker_filled";

    }

    option->color = d->mIndex.data(HbColorGridViewItem::ColorRole).value<QColor>(); 

    option->borderColor = HbColorScheme::color("qtc_popup_grid_normal");

}

void HbColorGridViewItem::resizeEvent ( QGraphicsSceneResizeEvent * event )

{

    HbGridViewItem::resizeEvent(event);

    updatePrimitives();

}