示例#1
0
文件: mapdocument.cpp 项目: stt/tiled
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);
}
示例#2
0
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]]);
}
示例#3
0
文件: mapdocument.cpp 项目: stt/tiled
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());
}