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

**

** 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 "hbpushbutton.h"

#include "hbpushbutton_p.h"

#include "hbstyle.h"

#include "hbstyleoptionpushbutton_p.h"

#include "hbframedrawerpool_p.h"

#include "hbnamespace.h"

#ifdef HB_EFFECTS

#include "hbeffect.h"

#include "hbeffectinternal_p.h"

#endif

#ifdef HB_GESTURE_FW

#include <hbtapgesture.h>

#endif

#include <QGraphicsSceneMouseEvent>

#include <QTimer>

#include <QGraphicsItem>

#include <QDebug>

#include <QCoreApplication>

#include <QApplication>

/*!

    @beta

    @hbwidgets

    \class HbPushButton

    \snippet{ultimatecodesnippet/ultimatecodesnippet.cpp,17}

     \snippet{ultimatecodesnippet/ultimatecodesnippet.cpp,35}

     \snippet{ultimatecodesnippet/ultimatecodesnippet.cpp,36}

    \sa HbAbstractButton , HbToolButton

*/

/*!

    \fn int HbPushButton::type() const

 */

/*!

    \fn void HbPushButton::longPress( QPointF )

 */

HbPushButtonPrivate::HbPushButtonPrivate() :

    textItem(0),

    additionalTextItem(0),

    touchArea(0),

    iconItem(0),

    frameItem(0),

    focusItem(0),

    backgroundFrameDrawer(0),

    longPressTimer(0),

    textAlignment(Qt::AlignHCenter | Qt::AlignVCenter ),

    additionalTextAlignment(Qt::AlignHCenter | Qt::AlignVCenter ),

    stretched(false),

    navigationKeyPress(false),

    hasTextAlignment(false),

    hasAdditionalTextAlignment(false)

{

#ifdef HB_EFFECTS

     //HbEffectInternal::add(HB_PUSHBUTTON_TYPE,"pushbutton_pressed.fxml", "pressed");

     HbEffectInternal::add(HB_PUSHBUTTON_TYPE,"pushbutton_released", "released");

#endif

}

/*

  Destructor.

 */

HbPushButtonPrivate::~HbPushButtonPrivate()

{

}

/*

  createPrimitives.

 */

void HbPushButtonPrivate::createPrimitives()

{

    Q_Q(HbPushButton);

    if ( !frameItem ) {

        frameItem = HbStylePrivate::createPrimitive( HbStylePrivate::P_PushButton_background, q );

    }

    if ( !text.isNull() ) {

        if ( !textItem ) {

            textItem = HbStylePrivate::createPrimitive( HbStylePrivate::P_PushButton_text, q );

        }

    } else {

        if( textItem ){

            delete textItem;

        }

        textItem = 0;

    }

    if ( !additionalText.isNull() ) {

        if ( !additionalTextItem ) {

            additionalTextItem = HbStylePrivate::createPrimitive( HbStylePrivate::P_PushButton_additionaltext, q );

        }

    } else {

        if( additionalTextItem ){

            delete additionalTextItem;

        }

        additionalTextItem = 0;

    }

    if ( !icon.isNull() ) {

        if ( !iconItem ) {

            iconItem = HbStylePrivate::createPrimitive( HbStylePrivate::P_PushButton_icon, q);

        }

    } else {

        if( iconItem ) {

            delete iconItem;

        }

        iconItem = 0;

    }

    if( !touchArea ) {

        touchArea = HbStylePrivate::createPrimitive( HbStylePrivate::P_PushButton_toucharea, q );

        if(QGraphicsObject *ta = qgraphicsitem_cast<QGraphicsObject*>(touchArea)) {

            ta->grabGesture(Qt::TapGesture);

            q->ungrabGesture(Qt::TapGesture);

        } else {

            q->grabGesture(Qt::TapGesture);

        }

    }

    if( !focusItem ) {

        focusItem = HbStylePrivate::createPrimitive(HbStylePrivate::P_PushButton_focus, q);

        //focus primitive is will not be visible by default, 

        //only in case of keyboard focus events it will be Visible.

        focusItem->setVisible( false );

    }

}

void HbPushButtonPrivate::_q_handleLongKeyPress( )

{

    Q_Q( HbPushButton );

    if(!longPress) {

        longPress = true;

        emit q->longPress( q->pos( ) );

    }

}

void HbPushButtonPrivate::initialize()

{

    Q_Q( HbPushButton );

    q_ptr = q;

    createPrimitives( );

}

/*!

 */

HbPushButton::HbPushButton( QGraphicsItem *parent )

    : HbAbstractButton( *new HbPushButtonPrivate, parent )

{

    Q_D( HbPushButton );

    d->initialize( );

    setProperty( "state", "normal" );

}

/*!

 */

HbPushButton::HbPushButton( const QString &text, QGraphicsItem *parent )

    : HbAbstractButton( *new HbPushButtonPrivate, parent )

{

    Q_D( HbPushButton );

    d->text = text;

    d->initialize( );

    setProperty( "state", "normal" );

}

/*!

 */

HbPushButton::HbPushButton( const HbIcon &icon, const QString &text, QGraphicsItem *parent )

    : HbAbstractButton( *new HbPushButtonPrivate, parent )

{

    Q_D( HbPushButton );

    d->icon = icon;

    d->text = text;

    d->initialize( );

    setProperty( "state", "normal" );

}

/*!

 */

HbPushButton::~HbPushButton( )

{

}

/*!

    \sa background()

 */

void  HbPushButton::setBackground( const HbIcon &background )

{

    Q_D( HbPushButton );

    if ( d->background != background ) {

        d->background = background;

        d->backgroundFrameDrawer = 0;

        HbStyleOptionPushButton buttonOption;

        initStyleOption( &buttonOption );

        HbStylePrivate::updatePrimitive( d->frameItem, HbStylePrivate::P_PushButton_background, &buttonOption );

    }

}

/*!

    \sa setBackground()

 */

HbIcon HbPushButton::background( ) const

{

    Q_D( const HbPushButton );

    return d->background;

}

/*!

    \sa frameBackground()

 */

void  HbPushButton::setFrameBackground( HbFrameDrawer *backgroundFrameDrawer )

{

    Q_D( HbPushButton );

    if ( d->backgroundFrameDrawer != backgroundFrameDrawer ) {

        d->backgroundFrameDrawer = backgroundFrameDrawer;

        d->background = HbIcon( );

        HbStyleOptionPushButton buttonOption;

        initStyleOption( &buttonOption );

        HbStylePrivate::updatePrimitive( d->frameItem, HbStylePrivate::P_PushButton_background, &buttonOption );

    }

}

/*!

    \sa setBackground()

 */

HbFrameDrawer *HbPushButton::frameBackground( ) const

{

    Q_D( const HbPushButton );

    return ( d->backgroundFrameDrawer );

}

/*!

    \sa text()

 */

void HbPushButton::setText( const QString &text )

{

    Q_D( HbPushButton );

    if ( d->text != text ) {

        bool doPolish = text.isEmpty() || d->text.isEmpty();

        d->text = text;

        d->createPrimitives( );

        //updatePrimitives();

        if( d->textItem ) {

            HbStyleOptionPushButton buttonOption;

            initStyleOption( &buttonOption );

            HbStylePrivate::updatePrimitive( d->textItem, HbStylePrivate::P_PushButton_text, &buttonOption);

            if ( isEnabled() ) {

                setProperty("state", "normal");

            }

        }

        if(doPolish) {

            repolish( );

        }

    }

}

/*!

    \sa setText()

 */

QString HbPushButton::text( ) const

{

    Q_D( const HbPushButton );

    return d->text;

}

/*!

    \sa additionalText()

 */

void HbPushButton::setAdditionalText( const QString &additionalText )

{

    Q_D( HbPushButton );

    if ( d->additionalText != additionalText ) {

        bool doPolish = additionalText.isEmpty() || d->additionalText.isEmpty();

        d->additionalText = additionalText;

        d->createPrimitives( );

        // updatePrimitives();

        if( d->additionalTextItem ) {

            HbStyleOptionPushButton buttonOption;

            initStyleOption( &buttonOption );

            HbStylePrivate::updatePrimitive( d->additionalTextItem, HbStylePrivate::P_PushButton_additionaltext, &buttonOption);

            if ( isEnabled() ) {

                setProperty("state", "normal");

            }

        }

        if( doPolish ) {

            repolish();

        }

    }

}

/*!

    \sa setAdditionalText()

 */

QString HbPushButton::additionalText( ) const

{

    Q_D( const HbPushButton );

    return d->additionalText;

}

/*!

    \sa icon()

 */

void HbPushButton::setIcon( const HbIcon &icon )

{

    Q_D(HbPushButton);

    if ( d->icon != icon ) {

        //checking for d->polished to avoid extra polish loop

        bool doPolish = (icon.isNull( ) || d->icon.isNull()) && d->polished;

        d->icon = icon;

        d->createPrimitives( );

        //updatePrimitives();

        if( d->iconItem ) {

            HbStyleOptionPushButton buttonOption;

            initStyleOption( &buttonOption );