TsgFilter::IdTree *TsgFilter::BuildTree(
const std::vector<TreeFragmentToken> &tokens, int &i,
std::vector<IdTree *> &leaves)
{
// The subtree starting at tokens[i] is either:
// 1. a single non-variable symbol (like NP or dog), or
// 2. a variable symbol (like [NP]), or
// 3. a subtree with children (like [NP [DT] [NN dog]])
// First check for case 1.
if (tokens[i].type == TreeFragmentToken_WORD) {
Vocabulary::IdType id = m_testVocab.Lookup(tokens[i++].value,
StringPieceCompatibleHash(),
StringPieceCompatibleEquals());
if (id == Vocabulary::NullId()) {
return 0;
}
leaves.push_back(new IdTree(id));
return leaves.back();
}
// We must be dealing with either case 2 or 3. Case 2 looks like case 3 but
// without the children.
assert(tokens[i].type == TreeFragmentToken_LSB);
// Skip over the opening [
++i;
// Read the root symbol of the subtree.
Vocabulary::IdType id = m_testVocab.Lookup(tokens[i++].value,
StringPieceCompatibleHash(),
StringPieceCompatibleEquals());
if (id == Vocabulary::NullId()) {
return 0;
}
IdTree *root = new IdTree(id);
// Read the children (in case 2 there won't be any).
while (tokens[i].type != TreeFragmentToken_RSB) {
IdTree *child = BuildTree(tokens, i, leaves);
if (!child) {
delete root;
return 0;
}
root->children().push_back(child);
child->parent() = root;
}
if (root->IsLeaf()) {
leaves.push_back(root);
}
// Skip over the closing ] and we're done.
++i;
return root;
}
CSMWorld::AddNestedCommand::AddNestedCommand(IdTree& model, const std::string& id, int nestedRow, int parentColumn, QUndoCommand* parent)
: QUndoCommand(parent),
NestedTableStoring(model, id, parentColumn),
mModel(model),
mId(id),
mNewRow(nestedRow),
mParentColumn(parentColumn)
{
std::string title =
model.headerData(parentColumn, Qt::Horizontal, Qt::DisplayRole).toString().toUtf8().constData();
setText (("Add row in " + title + " sub-table of " + mId).c_str());
}
CSMWorld::DeleteNestedCommand::DeleteNestedCommand (IdTree& model,
const std::string& id,
int nestedRow,
int parentColumn,
QUndoCommand* parent) :
QUndoCommand(parent),
NestedTableStoring(model, id, parentColumn),
mModel(model),
mId(id),
mParentColumn(parentColumn),
mNestedRow(nestedRow)
{
std::string title =
model.headerData(parentColumn, Qt::Horizontal, Qt::DisplayRole).toString().toUtf8().constData();
setText (("Delete row in " + title + " sub-table of " + mId).c_str());
QModelIndex parentIndex = mModel.getModelIndex(mId, mParentColumn);
mModifyParentCommand = new ModifyCommand(mModel, parentIndex, parentIndex.data(Qt::EditRole), this);
}
CSMWorld::NestedTableStoring::NestedTableStoring(const IdTree& model, const std::string& id, int parentColumn)
: mOld(model.nestedTable(model.getModelIndex(id, parentColumn))) {}