Method setData

src/backend/worksheet/TreeModel.cpp:106–112

}

bool TreeItem::setData(int column, const QVariant& value) {
	if (column < 0 || column >= itemData.size())
		return false;

	itemData[column] = value;
	return true;
}

bool TreeItem::setBackgroundColor(int column, const QVariant& value) {
	if (column < 0 || column >= itemData.size())