108 lines
2.5 KiB
C++
108 lines
2.5 KiB
C++
/*
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* Preprocessor.cc
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*
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* Check used codes for each font
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*
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* by WangLu
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* 2012.09.07
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*/
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#include <cstring>
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#include <iostream>
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#include <algorithm>
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#include <GfxState.h>
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#include <GfxFont.h>
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#include "Preprocessor.h"
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#include "util/misc.h"
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#include "util/const.h"
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namespace pdf2htmlEX {
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using std::cerr;
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using std::endl;
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using std::flush;
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using std::max;
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Preprocessor::Preprocessor(const Param & param)
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: OutputDev()
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, param(param)
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, max_width(0)
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, max_height(0)
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, cur_font_id(0)
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, cur_code_map(nullptr)
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{ }
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Preprocessor::~Preprocessor(void)
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{
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for(auto & p : code_maps)
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delete [] p.second;
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}
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void Preprocessor::process(PDFDoc * doc)
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{
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int page_count = (param.last_page - param.first_page + 1);
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for(int i = param.first_page; i <= param.last_page ; ++i)
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{
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cerr << "Preprocessing: " << (i-param.first_page) << "/" << page_count << '\r' << flush;
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doc->displayPage(this, i, DEFAULT_DPI, DEFAULT_DPI,
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0,
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(!(param.use_cropbox)),
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true, // crop
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false, // printing
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nullptr, nullptr, nullptr, nullptr);
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}
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if(page_count >= 0)
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cerr << "Preprocessing: " << page_count << "/" << page_count;
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cerr << endl;
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}
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void Preprocessor::drawChar(GfxState *state, double x, double y,
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double dx, double dy,
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double originX, double originY,
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CharCode code, int nBytes, Unicode *u, int uLen)
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{
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GfxFont * font = state->getFont();
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if(!font) return;
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long long fn_id = hash_ref(font->getID());
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if(fn_id != cur_font_id)
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{
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cur_font_id = fn_id;
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auto p = code_maps.insert(std::make_pair(cur_font_id, (char*)nullptr));
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if(p.second)
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{
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// this is a new font
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int len = font->isCIDFont() ? 0x10000 : 0x100;
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p.first->second = new char [len];
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memset(p.first->second, 0, len * sizeof(char));
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}
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cur_code_map = p.first->second;
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}
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cur_code_map[code] = 1;
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}
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void Preprocessor::startPage(int pageNum, GfxState *state)
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{
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startPage(pageNum, state, nullptr);
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}
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void Preprocessor::startPage(int pageNum, GfxState *state, XRef * xref)
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{
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max_width = max<double>(max_width, state->getPageWidth());
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max_height = max<double>(max_height, state->getPageHeight());
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}
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const char * Preprocessor::get_code_map (long long font_id) const
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{
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auto iter = code_maps.find(font_id);
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return (iter == code_maps.end()) ? nullptr : (iter->second);
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}
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} // namespace pdf2htmlEX
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