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66 lines
1.4 KiB
C++
66 lines
1.4 KiB
C++
/*
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* FontPreprocessor.h
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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 <GfxState.h>
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#include <GfxFont.h>
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#include "FontPreprocessor.h"
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#include "util.h"
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namespace pdf2htmlEX {
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FontPreprocessor::FontPreprocessor(void)
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: cur_font_id(0)
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, cur_code_map(nullptr)
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{ }
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FontPreprocessor::~FontPreprocessor(void)
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{
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for(auto iter = code_maps.begin(); iter != code_maps.end(); ++iter)
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delete [] iter->second;
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}
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void FontPreprocessor::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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const char * FontPreprocessor::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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