/****************************************************************************+
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**+
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** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the QtGui module of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#include <QtCore/qpropertyanimation.h>+
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#include <QtGui/qwidget.h>+
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#include <QtGui/private/qmainwindowlayout_p.h>+
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+
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#include "qwidgetanimator_p.h"+
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+
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QT_BEGIN_NAMESPACE+
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+
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QWidgetAnimator::QWidgetAnimator(QMainWindowLayout *layout) : m_mainWindowLayout(layout)+
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{+
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}+
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+
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void QWidgetAnimator::abort(QWidget *w)+
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{+
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#ifndef QT_NO_ANIMATION+
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    AnimationMap::iterator it = m_animation_map.find(w);+
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    if (it == m_animation_map.end())+
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        return;+
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    QPropertyAnimation *anim = *it;+
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    m_animation_map.erase(it);+
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    anim->stop();+
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#ifndef QT_NO_MAINWINDOW+
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    m_mainWindowLayout->animationFinished(w);+
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#endif+
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#else+
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    Q_UNUSED(w); //there is no animation to abort+
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#endif //QT_NO_ANIMATION+
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}+
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+
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#ifndef QT_NO_ANIMATION+
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void QWidgetAnimator::animationFinished()+
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{+
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    QPropertyAnimation *anim = qobject_cast<QPropertyAnimation*>(sender());+
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    abort(static_cast<QWidget*>(anim->targetObject()));+
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}+
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#endif //QT_NO_ANIMATION+
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+
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void QWidgetAnimator::animate(QWidget *widget, const QRect &_final_geometry, bool animate)+
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{+
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    QRect r = widget->geometry();+
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    if (r.right() < 0 || r.bottom() < 0)+
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        r = QRect();+
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+
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    animate = animate && !r.isNull() && !_final_geometry.isNull();+
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+
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    // might make the wigdet go away by sending it to negative space+
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    const QRect final_geometry = _final_geometry.isValid() || widget->isWindow() ? _final_geometry :+
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        QRect(QPoint(-500 - widget->width(), -500 - widget->height()), widget->size());+
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+
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    if (r == final_geometry)+
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        return; //the widget is already where it should be+
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#ifndef QT_NO_ANIMATION+
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    AnimationMap::const_iterator it = m_animation_map.constFind(widget);+
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    if (it != m_animation_map.constEnd() && (*it)->endValue().toRect() == final_geometry)+
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        return;+
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+
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    QPropertyAnimation *anim = new QPropertyAnimation(widget, "geometry", widget);+
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    anim->setDuration(animate ? 200 : 0);+
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    anim->setEasingCurve(QEasingCurve::InOutQuad);+
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    anim->setEndValue(final_geometry);+
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    m_animation_map[widget] = anim;+
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    connect(anim, SIGNAL(finished()), SLOT(animationFinished()));+
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    anim->start(QPropertyAnimation::DeleteWhenStopped);+
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#else+
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    //we do it in one shot+
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    widget->setGeometry(final_geometry);+
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    m_mainWindowLayout->animationFinished(widget);+
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#endif //QT_NO_ANIMATION+
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}+
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+
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bool QWidgetAnimator::animating() const+
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{+
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    return !m_animation_map.isEmpty();+
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}+
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+
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bool QWidgetAnimator::animating(QWidget *widget) const+
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{+
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    return m_animation_map.contains(widget);+
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}+
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+
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QT_END_NAMESPACE+
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