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#ifndef CSM_FILTER_NODE_H
#define CSM_FILTER_NODE_H
#include <map>
#include <memory>
#include <string>
#include <vector>
#include <QMetaType>
namespace CSMWorld
{
class IdTableBase;
}
namespace CSMFilter
{
/// \brief Root class for the filter node hierarchy
///
/// \note When the function documentation for this class mentions "this node", this should be
/// interpreted as "the node and all its children".
class Node
{
public:
Node() = default;
Node(const Node&) = delete;
Node& operator=(const Node&) = delete;
virtual ~Node() = default;
virtual bool test(const CSMWorld::IdTableBase& table, int row, const std::map<int, int>& columns) const = 0;
///< \return Can the specified table row pass through to filter?
/// \param columns column ID to column index mapping
virtual std::vector<int> getReferencedColumns() const = 0;
///< Return a list of the IDs of the columns referenced by this node. The column mapping
/// passed into test as columns must contain all columns listed here.
virtual std::string toString(bool numericColumns) const = 0;
///< Return a string that represents this node.
///
/// \param numericColumns Use numeric IDs instead of string to represent columns.
};
}
Q_DECLARE_METATYPE(std::shared_ptr<CSMFilter::Node>)
#endif
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