void MapDocument::onMapObjectModelRowsInsertedOrRemoved(const QModelIndex &parent,
int first, int last)
{
Q_UNUSED(first)
ObjectGroup *objectGroup = mMapObjectModel->toObjectGroup(parent);
if (!objectGroup)
return;
// Inserting or removing objects changes the index of any that come after
const int lastIndex = objectGroup->objectCount() - 1;
if (last < lastIndex)
emit objectsIndexChanged(objectGroup, last + 1, lastIndex);
}
QModelIndex MapObjectModel::index(int row, int column,
const QModelIndex &parent) const
{
if (!parent.isValid()) {
if (row < mObjectGroups.count())
return createIndex(row, column, mGroups[mObjectGroups.at(row)]);
return QModelIndex();
}
ObjectGroup *og = toObjectGroup(parent);
// happens when deleting the last item in a parent
if (row >= og->objectCount())
return QModelIndex();
// Paranoia: sometimes "fake" objects are in use (see createobjecttool)
if (!mObjects.contains(og->objects().at(row)))
return QModelIndex();
return createIndex(row, column, mObjects[og->objects()[row]]);
}
void MapDocument::moveObjectsUp(const QList<MapObject *> &objects)
{
if (objects.isEmpty())
return;
const auto ranges = computeRanges(objects);
QScopedPointer<QUndoCommand> command(new QUndoCommand(tr("Move %n Object(s) Up",
"", objects.size())));
RangesIterator rangesIterator(ranges);
while (rangesIterator.hasNext()) {
rangesIterator.next();
ObjectGroup *group = rangesIterator.key();
const RangeSet<int> &rangeSet = rangesIterator.value();
const RangeSet<int>::Range it_begin = rangeSet.begin();
RangeSet<int>::Range it = rangeSet.end();
Q_ASSERT(it != it_begin);
do {
--it;
int from = it.first();
int count = it.length();
int to = from + count + 1;
if (to <= group->objectCount())
new ChangeMapObjectsOrder(this, group, from, to, count, command.data());
} while (it != it_begin);
}
if (command->childCount() > 0)
mUndoStack->push(command.take());
}