Exporter.h

Go to the documentation of this file.

/* $Id:$ */

#ifndef __EXPORTER_H
#define __EXPORTER_H

/*
 * Explorer traversing the whole scene graph and writing it to file
 * using some format
 */

#include <esg/explorer/Explorer.h>

namespace esg {

class Exporter : public Explorer {
protected:
    FILE   * _file;
    bool     _close;
    bool     _result;

protected:
    void _indent (unsigned depth, const char * ind = "   ") {
        for (unsigned i = 0; i < depth; i++) fprintf(_file, "%s", ind);
    }
    
public:
    Exporter (FILE   * f /* opened (!) file */,
              bool     c /* wether to close file at the end */)
        : _file(f), _close(c), _result(false)
    {}

    virtual void explore (SceneGraphObject& obj) {
        while (!_trStack.empty()) _trStack.pop();
        if (_file) {
            _result = true;
            (void) _explore(obj);
            if (_close) fclose(_file);
        } else
            _result = false;
    }

    bool result (void) const { return _result; }

    void setOutput (FILE * f /* opened (!) file */,
                    bool   c /* wether to close file at the end */)
    {
        if (_file && _close) fclose(_file);
        _file  = f;
        _close = c;
    }
};

};

#endif // __EXPORTER_H

---