/*

* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

*

* This program is free software: you can redistribute it and/or modify

* it under the terms of the GNU Lesser General Public License as published by

* the Free Software Foundation, version 2.1 of the License.

*

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

* GNU Lesser General Public License for more details.

*

* You should have received a copy of the GNU Lesser General Public License

* along with this program.  If not,

* see "http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html/".

*

* Description:

*

*/

#include "FadeAnimator.h"

#include "../ChromeSnippet.h"

#include <QList>

#include <QDebug>

namespace GVA {

FadeAnimator::FadeAnimator(ChromeSnippet* m_snippet)

  : VisibilityAnimator(m_snippet),

    m_minOpacity(0.1)

{

  // If the snippet is currently hidden, it will be shown

  // before the animator starts. It should therefore show

  // with minimum opacity.

  if (m_snippet->widget() && !m_snippet->widget()->isVisible())

    m_snippet->widget()->setOpacity(m_minOpacity);

}

FadeAnimator::~FadeAnimator()

{

}

void FadeAnimator::updateVisibility(qreal step)

{

  qreal o = 1.0 - step;

  m_snippet->widget()->setOpacity((o > m_minOpacity)?o:m_minOpacity);

}

}