void KItemListViewAnimation::setScrollOffset(qreal offset)
{
const qreal diff = m_scrollOffset - offset;
m_scrollOffset = offset;
// The change of the offset requires that the position of all
// animated QGraphicsWidgets get adjusted. An exception is made
// for the delete animation that should just fade away on the
// existing position.
for (int type = 0; type < AnimationTypeCount; ++type) {
if (type == DeleteAnimation) {
continue;
}
QHashIterator<QGraphicsWidget*, QPropertyAnimation*> it(m_animation[type]);
while (it.hasNext()) {
it.next();
QGraphicsWidget* widget = it.key();
QPropertyAnimation* propertyAnim = it.value();
QPointF currentPos = widget->pos();
if (m_scrollOrientation == Qt::Vertical) {
currentPos.ry() += diff;
} else {
currentPos.rx() += diff;
}
if (type == MovingAnimation) {
// Stop the animation, calculate the moved start- and end-value
// and restart the animation for the remaining duration.
const int remainingDuration = propertyAnim->duration()
- propertyAnim->currentTime();
const bool block = propertyAnim->signalsBlocked();
propertyAnim->blockSignals(true);
propertyAnim->stop();
QPointF endPos = propertyAnim->endValue().toPointF();
if (m_scrollOrientation == Qt::Vertical) {
endPos.ry() += diff;
} else {
endPos.rx() += diff;
}
propertyAnim->setDuration(remainingDuration);
propertyAnim->setStartValue(currentPos);
propertyAnim->setEndValue(endPos);
propertyAnim->start();
propertyAnim->blockSignals(block);
} else {
widget->setPos(currentPos);
}
}
}
}
void
TopBar::fadeOutDude( unsigned int i )
{
// qDebug() << Q_FUNC_INFO << i;
QLabel* dude = m_dudes.at( i );
QPropertyAnimation* ani = new QPropertyAnimation( dude, "pos" );
ani->setDuration( 1000 );
ani->setEasingCurve( QEasingCurve::OutQuad );
ani->setStartValue( dude->pos() );
ani->setEndValue( QPoint( -10, 0 ) );
qDebug() << "Animating from" << ani->startValue() << "to" << ani->endValue();
connect( ani, SIGNAL( finished() ), ani, SLOT( deleteLater() ) );
ani->start();
}