OpenSceneGraph/include/osgDB/Output
2002-07-16 20:07:32 +00:00

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//C++ header - Open Scene Graph - Copyright (C) 1998-2002 Robert Osfield
//Distributed under the terms of the GNU Library General Public License (LGPL)
//as published by the Free Software Foundation.
#ifndef OSGDB_OUTPUT
#define OSGDB_OUTPUT 1
#include <osg/Object>
#include <osgDB/Export>
#include <string>
#include <map>
#include <fstream>
namespace osgDB {
/** ofstream wrapper class for adding support for indenting.
Used in output of .osg ASCII files to improve their readability.*/
class OSGDB_EXPORT Output : public std::ofstream
{
public:
Output();
Output(const char* name);
virtual ~Output();
void open(const char *name);
// comment out temporarily to avoid compilation problems, RO Jan 2002.
// void open(const char *name,int mode);
Output& indent();
inline const int getIndentStep() const { return _indentStep; }
inline void setIndentStep(int step) { _indentStep = step; }
inline const int getIndent() const { return _indent; }
inline void setIndent(int indent) { _indent = indent; }
inline const int getNumIndicesPerLine() const { return _numIndicesPerLine; }
inline void setNumIndicesPerLine(int num) { _numIndicesPerLine = num; }
void moveIn();
void moveOut();
virtual bool writeObject(const osg::Object& obj);
bool getUniqueIDForObject(const osg::Object* obj,std::string& uniqueID);
bool createUniqueIDForObject(const osg::Object* obj,std::string& uniqueID);
bool registerUniqueIDForObject(const osg::Object* obj,std::string& uniqueID);
enum PathNameHint
{
AS_IS,
FULL_PATH,
RELATIVE_PATH,
FILENAME_ONLY
};
inline void setPathNameHint(const PathNameHint pnh) { _pathNameHint = pnh; }
inline const PathNameHint getPathNameHint() const { return _pathNameHint; }
virtual const std::string getFileNameForOutput(const std::string& filename) const;
protected:
// prevent copy construction and assignment.
Output(const Output&);
Output& operator = (const Output&);
virtual void init();
int _indent;
int _indentStep;
int _numIndicesPerLine;
typedef std::map<const osg::Object*,std::string> UniqueIDToLabelMapping;
UniqueIDToLabelMapping _objectToUniqueIDMap;
std::string _filename;
PathNameHint _pathNameHint;
};
template<class T>
bool writeArrayBlock(Output& fw,T* start,T* finish)
{
fw.indent() << "{" << std::endl;
fw.moveIn();
int numIndicesThisLine = 0;
for(T* itr=start;itr!=finish;++itr)
{
if (numIndicesThisLine>=fw.getNumIndicesPerLine())
{
fw << std::endl;
numIndicesThisLine = 0;
}
if (numIndicesThisLine==0) fw.indent();
else fw << " ";
fw << *itr;
++numIndicesThisLine;
}
fw << std::endl;
fw.moveOut();
fw.indent() << "}" << std::endl;
return true;
}
}
#endif // __SG_OUTPUT_H