void AbstractGroupItem::resizeStart(int diff)
{
bool info = false;
if (m_resizeInfos.isEmpty())
info = true;
int maximum = diff;
QList <QGraphicsItem *> children = childItems();
QList <AbstractClipItem *> items;
int itemcount = 0;
for (int i = 0; i < children.count(); ++i) {
AbstractClipItem *item = static_cast <AbstractClipItem *>(children.at(i));
if (item && item->type() == AVWidget) {
items << item;
if (info)
m_resizeInfos << item->info();
item->resizeStart((int)(m_resizeInfos.at(itemcount).startPos.frames(item->fps())) + diff);
int itemdiff = (int)(item->startPos() - m_resizeInfos.at(itemcount).startPos).frames(item->fps());
if (qAbs(itemdiff) < qAbs(maximum))
maximum = itemdiff;
++itemcount;
}
}
for (int i = 0; i < items.count(); ++i)
items.at(i)->resizeStart((int)(m_resizeInfos.at(i).startPos.frames(items.at(i)->fps())) + maximum);
}
GenTime AbstractGroupItem::duration()
{
QList <QGraphicsItem *> children = childItems();
GenTime start = GenTime(-1.0);
GenTime end = GenTime();
for (int i = 0; i < children.count(); ++i) {
if (children.at(i)->type() != GroupWidget) {
AbstractClipItem *item = static_cast <AbstractClipItem *>(children.at(i));
if (item) {
if (start < GenTime() || item->startPos() < start)
start = item->startPos();
if (item->endPos() > end)
end = item->endPos();
}
} else {
children << children.at(i)->childItems();
}
}
return end - start;
}