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/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
*
* This library is open source and may be redistributed and/or modified under
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
* (at your option) any later version. The full license is in LICENSE file
* included with this distribution, and on the openscenegraph.org website.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* OpenSceneGraph Public License for more details.
*/
#ifndef OSGDB_FIELDREADERITERATOR
#define OSGDB_FIELDREADERITERATOR 1
#include <osg/Vec2f>
#include <osg/Vec2f>
#include <osg/Vec4f>
#include <osg/Vec2d>
#include <osg/Vec2d>
#include <osg/Vec4d>
#include <osgDB/Field>
#include <osgDB/FieldReader>
namespace osgDB {
class OSGDB_EXPORT FieldReaderIterator
{
public:
enum {
MINIMUM_FIELD_READER_QUEUE_SIZE = 10
};
FieldReaderIterator();
FieldReaderIterator(const FieldReaderIterator& ic);
virtual ~FieldReaderIterator();
FieldReaderIterator& operator = (const FieldReaderIterator& ic);
void attach(std::istream* input);
void detach();
virtual bool eof() const;
FieldReader& getFieldReader() { return _reader; }
void insert(int pos,Field* field);
void insert(int pos,const char* str);
Field& operator [] (int pos);
Field& field (int pos);
FieldReaderIterator& operator ++ ();
FieldReaderIterator& operator += (int no);
/** increments the iterator of the next simple field or
* whole block if the current field[0] is an open bracket */
void advanceOverCurrentFieldOrBlock();
void advanceToEndOfCurrentBlock();
void advanceToEndOfBlock(int noNestBrackets);
bool matchSequence(const char* str);
bool readSequence(const char* keyword,std::string& value);
bool readSequence(const char* keyword,unsigned int& value);
bool readSequence(const char* keyword,int& value);
bool readSequence(const char* keyword,float& value);
bool readSequence(const char* keyword,osg::Vec2f& value);
bool readSequence(const char* keyword,osg::Vec3f& value);
bool readSequence(const char* keyword,osg::Vec4f& value);
bool readSequence(const char* keyword,osg::Vec2d& value);
bool readSequence(const char* keyword,osg::Vec3d& value);
bool readSequence(const char* keyword,osg::Vec4d& value);
bool readSequence(std::string& value);
bool readSequence(unsigned int& value);
bool readSequence(int& value);
bool readSequence(float& value);
bool readSequence(osg::Vec2f& value);
bool readSequence(osg::Vec3f& value);
bool readSequence(osg::Vec4f& value);
bool readSequence(osg::Vec2d& value);
bool readSequence(osg::Vec3d& value);
bool readSequence(osg::Vec4d& value);
private:
void _init();
void _free();
void _copy(const FieldReaderIterator& ic);
FieldReader _reader;
Field _blank;
Field* _previousField;
Field** _fieldQueue;
int _fieldQueueSize;
int _fieldQueueCapacity;
};
}
#endif // __OSGDB_FIELD_READER_QUEUE_H
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