/*

* Preprocessor.h

*

* PDF is so complicated that we have to scan twice

*

* Check used codes for each font

* Collect all used link destinations

*

* by WangLu

* 2012.09.07

*/

#ifndef PREPROCESSOR_H__

#define PREPROCESSOR_H__

#include <unordered_map>

#include <OutputDev.h>

#include <PDFDoc.h>

#include <Annot.h>

#include "Param.h"

namespace pdf2htmlEX {

class Preprocessor : public OutputDev {

public:

Preprocessor(const Param * param);

virtual ~Preprocessor(void);

void process(PDFDoc * doc);

virtual GBool upsideDown() { return gFalse; }

virtual GBool useDrawChar() { return gTrue; }

virtual GBool interpretType3Chars() { return gFalse; }

virtual GBool needNonText() { return gFalse; }

virtual void drawChar(GfxState *state, double x, double y,

double dx, double dy,

double originX, double originY,

CharCode code, int nBytes, Unicode *u, int uLen);

virtual void startPage(int pageNum, GfxState *state);

const char * get_code_map (long long font_id) const;

double get_max_width (void) const { return max_width; }

double get_max_height (void) const { return max_height; }

protected:

const Param * param;

double max_width, max_height;

long long cur_font_id;

char * cur_code_map;

std::unordered_map<long long, char*> code_maps;

};

} // namespace pdf2htmlEX

#endif //PREPROCESSOR_H__