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 Widget::connectForPosition(QString position)
{
QPropertyAnimation* anim = qobject_cast<QPropertyAnimation*>(m_animation.animationAt(0));
if (!anim)
return;
int duration = m_settings.get("gui/in_animation_duration").toInt();
if (anim->duration() != duration)
anim->setDuration(duration);
disconnect(anim, SIGNAL(valueChanged(QVariant)), this, SLOT(updateTopLeftAnimation(QVariant)));
disconnect(anim, SIGNAL(valueChanged(QVariant)), this, SLOT(updateTopRightAnimation(QVariant)));
disconnect(anim, SIGNAL(valueChanged(QVariant)), this, SLOT(updateBottomRightAnimation(QVariant)));
disconnect(anim, SIGNAL(valueChanged(QVariant)), this, SLOT(updateBottomLeftAnimation(QVariant)));
disconnect(anim, SIGNAL(valueChanged(QVariant)), this, SLOT(updateTopCenterAnimation(QVariant)));
disconnect(anim, SIGNAL(valueChanged(QVariant)), this, SLOT(updateBottomCenterAnimation(QVariant)));
disconnect(anim, SIGNAL(valueChanged(QVariant)), this, SLOT(updateCenterAnimation(QVariant)));
if (position == "top_left" || position == "tl") {
m_activePositionSlot = SLOT(updateTopLeftAnimation(QVariant));
}
else if (position == "top_right" || position == "tr") {
m_activePositionSlot = SLOT(updateTopRightAnimation(QVariant));
}
else if (position == "bottom_right" || position == "br") {
m_activePositionSlot = SLOT(updateBottomRightAnimation(QVariant));
}
else if (position == "bottom_left" || position == "bl") {
m_activePositionSlot = SLOT(updateBottomLeftAnimation(QVariant));
}
else if (position == "top_center" || position == "tc") {
m_activePositionSlot = SLOT(updateTopCenterAnimation(QVariant));
}
else if (position == "bottom_center" || position == "bc") {
m_activePositionSlot = SLOT(updateBottomCenterAnimation(QVariant));
}
else if (position == "center" || position == "c") {
m_activePositionSlot = SLOT(updateCenterAnimation(QVariant));
}
else if (position == "below_cursor" || position == "bcur") {
m_activePositionSlot = SLOT(updateBelowCursorAnimation(QVariant));
}
else {
// top_right seems to be the classic case so fallback to it.
m_activePositionSlot = SLOT(updateTopRightAnimation(QVariant));
}
connect(anim, SIGNAL(valueChanged(QVariant)), this, m_activePositionSlot.c_str());
}