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     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

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    41 

    42 #include <QtCore/qpropertyanimation.h>

    43 #include <QtGui/qwidget.h>

    44 #include <QtGui/private/qmainwindowlayout_p.h>

    45 

    46 #include "qwidgetanimator_p.h"

    47 

    48 QT_BEGIN_NAMESPACE

    49 

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

    51 {

    52 }

    53 

    54 void QWidgetAnimator::abort(QWidget *w)

    55 {

    56 #ifndef QT_NO_ANIMATION

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

    58     if (it == m_animation_map.end())

    59         return;

    60     QPropertyAnimation *anim = *it;

    61     m_animation_map.erase(it);

    62     anim->stop();

    63 #ifndef QT_NO_MAINWINDOW

    64     m_mainWindowLayout->animationFinished(w);

    65 #endif

    66 #else

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

    68 #endif //QT_NO_ANIMATION

    69 }

    70 

    71 #ifndef QT_NO_ANIMATION

    72 void QWidgetAnimator::animationFinished()

    73 {

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

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

    76 }

    77 #endif //QT_NO_ANIMATION

    78 

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

    80 {

    81     QRect r = widget->geometry();

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

    83         r = QRect();

    84 

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

    86 

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

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

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

    90 

    91     if (r == final_geometry)

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

    93 #ifndef QT_NO_ANIMATION

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

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

    96         return;

    97 

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

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

   100     anim->setEasingCurve(QEasingCurve::InOutQuad);

   101     anim->setEndValue(final_geometry);

   102     m_animation_map[widget] = anim;

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

   104     anim->start(QPropertyAnimation::DeleteWhenStopped);

   105 #else

   106     //we do it in one shot

   107     widget->setGeometry(final_geometry);

   108     m_mainWindowLayout->animationFinished(widget);

   109 #endif //QT_NO_ANIMATION

   110 }

   111 

   112 bool QWidgetAnimator::animating() const

   113 {

   114     return !m_animation_map.isEmpty();

   115 }

   116 

   117 bool QWidgetAnimator::animating(QWidget *widget) const

   118 {

   119     return m_animation_map.contains(widget);

   120 }

   121 

   122 QT_END_NAMESPACE