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#ifndef CSGTEXTRENDERER_H_
#define CSGTEXTRENDERER_H_
#include <string>
#include <map>
#include <list>
#include "visitor.h"
#include "nodecache.h"
using std::string;
using std::map;
using std::list;
using std::pair;
class CSGTextRenderer : public Visitor
{
public:
enum CsgOp {UNION, INTERSECTION, DIFFERENCE, MINKOWSKI};
CSGTextRenderer(const NodeCache<string> &dumpcache) : root(NULL), dumpcache(dumpcache) {}
virtual ~CSGTextRenderer() {}
virtual Response visit(const State &state, const AbstractNode &node);
virtual Response visit(const State &state, const AbstractIntersectionNode &node);
virtual Response visit(const State &state, const CsgNode &node);
virtual Response visit(const State &state, const TransformNode &node);
virtual Response visit(const State &state, const AbstractPolyNode &node);
string getCGALMesh() const;
// CGAL_Nef_polyhedron getCGALMesh() const;
private:
void addToParent(const State &state, const AbstractNode &node);
bool isCached(const AbstractNode &node);
QString mk_cache_id(const AbstractNode &node) const;
void process(string &target, const string &src, CSGTextRenderer::CsgOp op);
void applyToChildren(const AbstractNode &node, CSGTextRenderer::CsgOp op);
string currindent;
const AbstractNode *root;
typedef list<pair<const AbstractNode *, QString> > ChildList;
map<int, ChildList> visitedchildren;
// hashmap<string, CGAL_Nef_polyhedron> cache;
// For now use strings instead of Nef polyhedrons for testing caching
QHash<QString, string> cache;
const NodeCache<string> &dumpcache;
};
#endif
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