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#ifndef CSGTEXTRENDERER_H_
#define CSGTEXTRENDERER_H_
#include <qglobal.h>
#include <string>
extern uint qHash(const std::string &);
#include <map>
#include <list>
#include <QHash>
#include "visitor.h"
#include "Tree.h"
using std::string;
using std::map;
using std::list;
using std::pair;
class CSGTextRenderer : public Visitor
{
public:
CSGTextRenderer(QHash<string, string> &cache, const Tree &tree) :
cache(cache), tree(tree) {}
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);
private:
enum CsgOp {UNION, INTERSECTION, DIFFERENCE, MINKOWSKI};
void addToParent(const State &state, const AbstractNode &node);
bool isCached(const AbstractNode &node);
void process(string &target, const string &src, CSGTextRenderer::CsgOp op);
void applyToChildren(const AbstractNode &node, CSGTextRenderer::CsgOp op);
string currindent;
typedef list<pair<const AbstractNode *, string> > ChildList;
map<int, ChildList> visitedchildren;
QHash<string, string> &cache;
const Tree &tree;
};
#endif
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