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

#include <QtCore/qpropertyanimation.h>

#include <QtGui/qwidget.h>

#include <QtGui/private/qmainwindowlayout_p.h>

#include "qwidgetanimator_p.h"

QT_BEGIN_NAMESPACE

QWidgetAnimator::QWidgetAnimator(QMainWindowLayout *layout) : m_mainWindowLayout(layout)

{

}

void QWidgetAnimator::abort(QWidget *w)

{

#ifndef QT_NO_ANIMATION

    AnimationMap::iterator it = m_animation_map.find(w);

    if (it == m_animation_map.end())

        return;

    QPropertyAnimation *anim = *it;

    m_animation_map.erase(it);

    anim->stop();

#ifndef QT_NO_MAINWINDOW

    m_mainWindowLayout->animationFinished(w);

#endif

#else

    Q_UNUSED(w); //there is no animation to abort

#endif //QT_NO_ANIMATION

}

#ifndef QT_NO_ANIMATION

void QWidgetAnimator::animationFinished()

{

    QPropertyAnimation *anim = qobject_cast<QPropertyAnimation*>(sender());

    abort(static_cast<QWidget*>(anim->targetObject()));

}

#endif //QT_NO_ANIMATION

void QWidgetAnimator::animate(QWidget *widget, const QRect &_final_geometry, bool animate)

{

    QRect r = widget->geometry();

    if (r.right() < 0 || r.bottom() < 0)

        r = QRect();

    animate = animate && !r.isNull() && !_final_geometry.isNull();

    // might make the wigdet go away by sending it to negative space

    const QRect final_geometry = _final_geometry.isValid() || widget->isWindow() ? _final_geometry :

        QRect(QPoint(-500 - widget->width(), -500 - widget->height()), widget->size());

    if (r == final_geometry)

        return; //the widget is already where it should be

#ifndef QT_NO_ANIMATION

    AnimationMap::const_iterator it = m_animation_map.constFind(widget);

    if (it != m_animation_map.constEnd() && (*it)->endValue().toRect() == final_geometry)

        return;

    QPropertyAnimation *anim = new QPropertyAnimation(widget, "geometry", widget);

    anim->setDuration(animate ? 200 : 0);

    anim->setEasingCurve(QEasingCurve::InOutQuad);

    anim->setEndValue(final_geometry);

    m_animation_map[widget] = anim;

    connect(anim, SIGNAL(finished()), SLOT(animationFinished()));

    anim->start(QPropertyAnimation::DeleteWhenStopped);

#else

    //we do it in one shot

    widget->setGeometry(final_geometry);

    m_mainWindowLayout->animationFinished(widget);

#endif //QT_NO_ANIMATION

}

bool QWidgetAnimator::animating() const

{

    return !m_animation_map.isEmpty();

}

bool QWidgetAnimator::animating(QWidget *widget) const

{

    return m_animation_map.contains(widget);

}

QT_END_NAMESPACE