Obj.h

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//---------------------------------------------------------------------------------------
// Copyright (c) 2001-2018 by PDFTron Systems Inc. All Rights Reserved.
// Consult legal.txt regarding legal and license information.
//---------------------------------------------------------------------------------------
#ifndef PDFTRON_H_CPPSDFSDFObj
#define PDFTRON_H_CPPSDFSDFObj

#include <Common/Exception.h>
#include <Common/UString.h>
#include <Common/Matrix2D.h>
#include <Filters/FilterWriter.h>
#include <Filters/Filter.h>


namespace pdftron { 
    namespace SDF {

class DictIterator;

class Obj 
{
public:

    // Common methods for all objects -----------------------------------------------

    enum Type 
    {
        e_null,
        e_bool,
        e_number,
        e_name,
        e_string,
        e_dict, 
        e_array,
        e_stream
    };

     Type GetType () const;

     bool IsBool () const;

     bool IsNumber () const;

     bool IsNull () const;

     bool IsString () const;

     bool IsName () const;

     bool IsIndirect () const;

     bool IsContainer () const;

     bool IsDict () const;

     bool IsArray () const;

     bool IsStream () const;

     class SDFDoc& GetDoc () const;

     void Write(Filters::FilterWriter& stream);

     size_t Size () const;

    // Indirect Methods -------------------------------------------------------------

     UInt32 GetObjNum () const;

     UInt16 GetGenNum () const;

     size_t GetOffset () const;

     bool IsFree () const;

     void SetMark (bool mark);

     bool IsMarked () const;

     bool IsLoaded () const;

     bool IsValid () const;

    // Boolean Specific Methods ----------------------------------------------------

     bool GetBool () const;

     void SetBool (bool b);

    // Number Specific Methods -----------------------------------------------------

     double GetNumber () const;

     void SetNumber (double n);


    // String Specific Methods -----------------------------------------------------

#ifdef SWIG
     std::vector<unsigned char> GetBuffer () const;
#else
     const UChar* GetBuffer () const;
#endif

     UString GetAsPDFText() const;

#ifndef SWIG
     void GetAsPDFText(UString& out_str) const;
#endif

     void SetString(const UChar* value, size_t size);

     void SetString(const UString& str);

    // Name Specific Methods -------------------------------------------------------

     const char* GetName () const;

     void SetName (const char* name); 


    // Dictionary Specific Methods -------------------------------------------------

     DictIterator GetDictIterator ();

     DictIterator Find (const char* key);

     Obj FindObj (const char* key);

     DictIterator Get (const char* key);

     Obj PutName (const char* key, const char* name);

     Obj PutArray (const char* key);

     Obj PutBool (const char* key, bool value);

     Obj PutDict (const char* key);

     Obj PutNumber (const char* key, double value);

     Obj PutString (const char* key, const char* value);

     Obj PutString (const char* key, const char* value, int size);

     Obj PutText(const char* key, const UString& value);

     void PutNull (const char* key);

     Obj Put(const char* key, Obj obj);

     Obj PutRect (const char* key, double x1, double y1, double x2, double y2);

     Obj PutMatrix(const char* key, const Common::Matrix2D& value);

     void Erase (const char* key);

     void Erase (DictIterator pos);
    
     bool Rename (const char* old_key, const char* new_key);


    // Array Specific Methods ------------------------------------------------------

     Obj GetAt (size_t index) const;

     Obj InsertName (size_t pos, const char* name);

     Obj InsertArray (size_t pos);

     Obj InsertBool (size_t pos, bool value);

     Obj InsertDict (size_t pos);

     Obj InsertNumber (size_t pos, double value);

     Obj InsertString (size_t pos, const char* value);

     Obj InsertString (size_t pos, const char* value, int size);

     Obj InsertText(size_t pos, const UString& value);

     Obj InsertNull(size_t pos);

     Obj Insert(size_t pos, Obj obj);

     Obj InsertRect (size_t pos, double x1, double y1, double x2, double y2);

     Obj InsertMatrix(size_t pos, Common::Matrix2D& value);

     Obj PushBackName (const char* name);

     Obj PushBackArray ();

     Obj PushBackBool (bool value);

     Obj PushBackDict ();

     Obj PushBackNumber (double value);

     Obj PushBackString (const char* value);

     Obj PushBackString (const char* value, int size);

     Obj PushBackText (const UString& value);

     Obj PushBackNull ();

     Obj PushBack(Obj obj);

     Obj PushBackRect (double x1, double y1, double x2, double y2);

     Obj PushBackMatrix(Common::Matrix2D& value);
    
     void EraseAt (size_t pos);


    // Stream Specific Methods -----------------------------------------------------

     size_t GetRawStreamLength () const;

     Filters::Filter GetRawStream (bool decrypt) const;

     Filters::Filter GetDecodedStream () const;
    
     void SetStreamData( 
         const char* data, 
         const size_t data_size, 
         Filters::Filter filter_chain = Filters::Filter() );

    // Support methods ----------------------------------------------------------------

     Obj() : mp_obj(0) {}
     Obj(const Obj& c) : mp_obj(c.mp_obj) {}
     Obj& operator=(const Obj& c) {mp_obj=c.mp_obj; return *this;}

     operator bool () { return mp_obj!=0;}
    
     bool IsEqual(const Obj& to) const;
     bool operator ==(const Obj& to) const;
     bool operator <(const Obj& to) const { return mp_obj < to.mp_obj; }
    
    //for xamarin use only
    static Obj* CreateInternal(ptrdiff_t impl);
    ptrdiff_t GetHandleInternal();

    #ifndef SWIGHIDDEN
     Obj(TRN_Obj impl);
    TRN_Obj mp_obj;
private:
    mutable TRN_SDFDoc temp_doc;
    #endif
};



    };  // namespace SDF
};  // namespace pdftron



#include <Impl/SDFDoc.inl>

#endif // PDFTRON_H_CPPSDFSDFObj