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/*
* Copyright (C) 2004-2012 Geometer Plus <[email protected]>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
#ifndef __PDFOBJECT_H__
#define __PDFOBJECT_H__
#include <string>
#include <vector>
#include <map>
#include <shared_ptr.h>
class ZLInputStream;
class PdfObject {
public:
static shared_ptr<PdfObject> readObject(ZLInputStream &stream, char &ch);
static void readToken(ZLInputStream &stream, std::string &buffer, char &ch);
protected:
static void skipWhiteSpaces(ZLInputStream &stream, char &ch);
public:
enum Type {
BOOLEAN,
INTEGER_NUMBER,
REAL_NUMBER,
STRING,
NAME,
ARRAY,
DICTIONARY,
STREAM,
NIL,
REFERENCE
};
virtual ~PdfObject();
virtual Type type() const = 0;
};
class PdfBooleanObject : public PdfObject {
public:
static shared_ptr<PdfObject> TRUE();
static shared_ptr<PdfObject> FALSE();
private:
PdfBooleanObject(bool value);
public:
bool value() const;
private:
Type type() const;
private:
const bool myValue;
};
class PdfIntegerObject : public PdfObject {
public:
static shared_ptr<PdfObject> integerObject(int value);
private:
PdfIntegerObject(int value);
public:
int value() const;
private:
Type type() const;
private:
const int myValue;
};
class PdfStringObject : public PdfObject {
private:
PdfStringObject(const std::string &value);
private:
Type type() const;
private:
std::string myValue;
friend shared_ptr<PdfObject> PdfObject::readObject(ZLInputStream &stream, char &ch);
};
class PdfNameObject : public PdfObject {
public:
static shared_ptr<PdfObject> nameObject(const std::string &id);
private:
static std::map<std::string,shared_ptr<PdfObject> > ourObjectMap;
private:
PdfNameObject();
private:
Type type() const;
};
class PdfDictionaryObject : public PdfObject {
private:
PdfDictionaryObject();
void setObject(shared_ptr<PdfObject> id, shared_ptr<PdfObject> object);
public:
shared_ptr<PdfObject> operator [] (shared_ptr<PdfObject> id) const;
shared_ptr<PdfObject> operator [] (const std::string &id) const;
private:
Type type() const;
private:
std::map<shared_ptr<PdfObject>,shared_ptr<PdfObject> > myMap;
friend shared_ptr<PdfObject> PdfObject::readObject(ZLInputStream &stream, char &ch);
};
class PdfStreamObject : public PdfObject {
private:
PdfStreamObject(const PdfDictionaryObject &dictionary, ZLInputStream &dataStream);
private:
Type type() const;
private:
std::string myData;
/*
enum EncodingType {
UNKNOWN,
FLATE,
};
std::vector<EncodingType> myFilters;
*/
friend shared_ptr<PdfObject> PdfObject::readObject(ZLInputStream &stream, char &ch);
};
class PdfArrayObject : public PdfObject {
private:
PdfArrayObject();
void addObject(shared_ptr<PdfObject> object);
shared_ptr<PdfObject> popLast();
public:
int size() const;
shared_ptr<PdfObject> operator [] (int index) const;
private:
Type type() const;
private:
std::vector<shared_ptr<PdfObject> > myVector;
friend shared_ptr<PdfObject> PdfObject::readObject(ZLInputStream &stream, char &ch);
};
class PdfObjectReference : public PdfObject {
public:
PdfObjectReference(int number, int generation);
int number() const;
int generation() const;
private:
Type type() const;
private:
const int myNumber;
const int myGeneration;
};
#endif /* __PDFOBJECT_H__ */
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