///////////////////////////////////////////////////////////////////////////////
// PDFDictionaryIterator.h  Stefan Woerthmueller 2014  StefanWoe@googlemail.com
///////////////////////////////////////////////////////////////////////////////
/*
    Usage Example:

    PDFParser parser;
    InputFile pdfFile;
    if(pdfFile.OpenFile(Path) != PDFHummus::eSuccess)
        return;
    parser.StartPDFParsing(pdfFile.GetInputStream());

    PDFDictionaryIterator it(parser, parser.GetTrailer());
    PDFArrayIterator it2 = it.Enter("Root").Enter("Names").Enter("EmbeddedFiles").Array("Kids").DictAt(0).Array("Names");

    for(int i = 1; i < it2.GetLength(); i += 2)
    {
        PDFDictionaryIterator dict = it2.DictAt(i);
        std::string fileName = dict.GetStrValue("F");
        std::string outPath;
        if(dict.Enter("EF").WriteStreamToFile(pdfFile, "F", outPath))
        {
            ... Handle Error
        }
    }

*/

#pragma once
#include "PDFWriter.h"
#include "PDFObjectCast.h"
#include "PDFLiteralString.h"
#include "PDFIndirectObjectReference.h"
#include "PDFStreamInput.h"

class PDFArrayIterator;
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////

class PDFDictionaryIterator
{
public:
    PDFDictionaryIterator(PDFParser &parser) :  mDictonary(NULL),mParser(parser)
    {
    }

    PDFDictionaryIterator(PDFParser &parser, PDFObjectCastPtr<PDFDictionary> &inDict) :
                        mDictonary(inDict.GetPtr()),
                        mDictonaryRefPtr(inDict),
                        mParser(parser)
    {
    }
    PDFDictionaryIterator(PDFParser &parser, PDFDictionary *inDict) :
                        mDictonary(inDict),
                        mParser(parser)
    {
    }
    std::string GetStrValue(std::string s);



    PDFDictionaryIterator Enter(std::string s);

    PDFArrayIterator Array(std::string s);

    bool WriteStreamToFile(InputFile &pdfFile, std::string s, std::string filePath);

private:
    void SetDictRefPtr(PDFDictionary  *dictonary)
    {
        mDictonary = dictonary; 
        mDictonaryRefPtr = dictonary;
    }
    PDFDictionary                  *mDictonary;
    PDFObjectCastPtr<PDFDictionary> mDictonaryRefPtr;
    PDFParser &mParser;
};