/*

* 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:

*

*/

// System includes

// User includes

#include "radiofadinglabel.h"

#include "radiologger.h"

#include "radioutil.h"

// Constants

const QString HIDE_EFFECT = "hide";

const QString SHOW_EFFECT = "show";

#ifdef USE_DEPRECATED_ORBIT_APIS

#   define SET_CONTENT setText

#   define GET_CONTENT text

#else

#   define SET_CONTENT setHtml

#   define GET_CONTENT html

#endif // USE_DEPRECATED_ORBIT_APIS

/*!

 *

 */

RadioFadingLabel::RadioFadingLabel( QGraphicsItem* parent ) :

    HbLabel( parent ),

    mFadingEnabled( false )

{

    QEffectList effectList;

//    effectList.append( EffectInfo( this, ":/effects/fade_in.fxml", SHOW_EFFECT ) );

//    effectList.append( EffectInfo( this, ":/effects/fade_out.fxml", HIDE_EFFECT ) );

    RadioUtil::addEffects( effectList );

}

/*!

 *

 */

void RadioFadingLabel::setFadingEnabled( bool fading )

{

    mFadingEnabled = fading;

}

/*!

 *

 */

void RadioFadingLabel::setTextWithoutFading( const QString& newText )

{

    HbLabel::SET_CONTENT( trimHtml( newText ) );

    if ( newText.isEmpty() && mFadingEnabled ) {

        setOpacity( 0.0 );

    }

}

/*!

 * Public slot

 *

 */

void RadioFadingLabel::setText( const QString& newText )

{

    if( GET_CONTENT().compare( newText ) != 0 &&                   // Text is different

            parentItem() && parentItem()->isVisible() &&    // Parent is visible

            mFadingEnabled ) {                              // Fading is enabled

        if ( newText.isEmpty() ) {

            if ( isVisible() ) {

                mTextHolder = "";

                startEffect( HIDE_EFFECT, "effectFinished" );

            }

        } else {

            if ( GET_CONTENT().isEmpty() ) {

                HbLabel::SET_CONTENT( trimHtml( newText ) );

                startEffect( SHOW_EFFECT );

            } else {

                mTextHolder = newText;

                startEffect( HIDE_EFFECT, "effectFinished" );

            }

        }

    } else {

        HbLabel::SET_CONTENT( trimHtml( newText ) );

    }

}

/*!

 * Private slot

 *

 */

void RadioFadingLabel::effectFinished( HbEffect::EffectStatus status )

{

    if ( status.reason == Hb::EffectFinished ) {

        HbLabel::SET_CONTENT( trimHtml( mTextHolder ) );

        if ( !mTextHolder.isEmpty() ) {

            HbEffect::start( this, SHOW_EFFECT );

        }

        mTextHolder = "";

    }

}

/*!

 *

 */

void RadioFadingLabel::startEffect( const QString& effectName, const char* slot )

{

    if ( HbEffect::effectRunning( this ) ) {

        HbEffect::cancel( this );

    }

    if ( slot ) {

        HbEffect::start( this, effectName, this, slot );

    } else {

        HbEffect::start( this, effectName );

    }

}

/*!

 *

 */

QString RadioFadingLabel::trimHtml( const QString& text )

{

#ifdef USE_DEPRECATED_ORBIT_APIS

    return text;

#else

    return "<font color=\"white\">" + text + "</font>";

#endif // USE_DEPRECATED_ORBIT_APIS

}