mirror of
https://github.com/pdf2htmlEX/pdf2htmlEX.git
synced 2024-12-22 04:50:09 +00:00
better file structure
This commit is contained in:
Lu Wang
parent
0982bf8b34
commit
5f7f28a41f
@ -24,9 +24,12 @@ add_executable(pdf2htmlEX
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src/pdf2htmlEX.cc
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src/HTMLRenderer.h
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src/HTMLRenderer.cc
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src/HTMLRenderer/general.cc
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src/HTMLRenderer/state.cc
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src/HTMLRenderer/install.cc
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src/HTMLRenderer/export.cc
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src/HTMLRenderer/text.cc
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src/HTMLRenderer/image.cc
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src/BackgroundRenderer.h
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src/BackgroundRenderer.cc
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src/Consts.h
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@ -30,7 +30,7 @@ Not supported yet
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Dependency
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----------------------------
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* libpoppler with xpdf header >= 0.20.2
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* boost c++ library (format, program options, gil)
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* boost c++ library (format, program options, gil, filesystem)
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* fontforge **Please use [the lastest version](https://github.com/fontforge/fontforge)**
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HOW TO COMPILE
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@ -1,383 +0,0 @@
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/*
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* HTMLRenderer.cc
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*
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* Copyright (C) 2011 by Hongliang TIAN(tatetian@gmail.com)
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* Copyright (C) 2012 by Lu Wang coolwanglu<at>gmail.com
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*/
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/*
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* TODO
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* font base64 embedding
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*/
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#include <cmath>
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#include <cassert>
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#include <fstream>
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#include <algorithm>
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#include <boost/format.hpp>
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#include <boost/algorithm/string.hpp>
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#include <boost/filesystem/fstream.hpp>
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// for gil bug
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const int *int_p_NULL = nullptr;
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#include <boost/gil/gil_all.hpp>
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#include <boost/gil/extension/io/png_dynamic_io.hpp>
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#include <GfxFont.h>
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#include <CharCodeToUnicode.h>
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#include <fofi/FoFiType1C.h>
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#include <fofi/FoFiTrueType.h>
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#include <splash/SplashBitmap.h>
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#include "HTMLRenderer.h"
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#include "BackgroundRenderer.h"
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#include "Consts.h"
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#include "util.h"
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#include "config.h"
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/*
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* CSS classes
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*
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* p - Page
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* l - Line
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* w - White space
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* i - Image
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*
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*
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* Reusable CSS classes
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*
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* f<hex> - Font (also for font names)
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* s<hex> - font Size
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* w<hex> - White space
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* t<hex> - Transform matrix
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* c<hex> - Color
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*
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*/
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HTMLRenderer::HTMLRenderer(const Param * param)
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:line_opened(false)
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,html_fout(param->output_filename.c_str(), ofstream::binary)
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,allcss_fout("all.css")
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,fontscript_fout(TMP_DIR+"/convert.pe")
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,image_count(0)
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,param(param)
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{
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// install default font & size
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install_font(nullptr);
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install_font_size(0);
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install_transform_matrix(id_matrix);
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GfxRGB black;
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black.r = black.g = black.b = 0;
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install_color(&black);
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}
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HTMLRenderer::~HTMLRenderer()
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{
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}
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void HTMLRenderer::process(PDFDoc *doc)
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{
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std::cerr << "Processing Text: ";
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write_html_head();
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xref = doc->getXRef();
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for(int i = param->first_page; i <= param->last_page ; ++i)
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{
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doc->displayPage(this, i, param->h_dpi, param->v_dpi,
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0, true, false, false,
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nullptr, nullptr, nullptr, nullptr);
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std::cerr << ".";
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std::cerr.flush();
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}
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write_html_tail();
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std::cerr << std::endl;
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if(param->process_nontext)
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{
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// Render non-text objects as image
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std::cerr << "Processing Others: ";
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// copied from poppler
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SplashColor color;
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color[0] = color[1] = color[2] = 255;
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auto bg_renderer = new BackgroundRenderer(splashModeRGB8, 4, gFalse, color);
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bg_renderer->startDoc(doc);
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for(int i = param->first_page; i <= param->last_page ; ++i)
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{
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doc->displayPage(bg_renderer, i, param->h_dpi2, param->v_dpi2,
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0, true, false, false,
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nullptr, nullptr, nullptr, nullptr);
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bg_renderer->getBitmap()->writeImgFile(splashFormatPng, (char*)(boost::format("p%|1$x|.png")%i).str().c_str(), param->h_dpi2, param->v_dpi2);
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std::cerr << ".";
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std::cerr.flush();
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}
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delete bg_renderer;
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std::cerr << std::endl;
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}
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}
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void HTMLRenderer::write_html_head()
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{
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html_fout << boost::filesystem::ifstream(PDF2HTMLEX_LIB_PATH / "head.html", ifstream::binary).rdbuf();
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}
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void HTMLRenderer::write_html_tail()
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{
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html_fout << boost::filesystem::ifstream(PDF2HTMLEX_LIB_PATH / "tail.html", ifstream::binary).rdbuf();
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}
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void HTMLRenderer::startPage(int pageNum, GfxState *state)
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{
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this->pageNum = pageNum;
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this->pageWidth = state->getPageWidth();
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this->pageHeight = state->getPageHeight();
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assert(!line_opened);
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html_fout << boost::format("<div id=\"page-%3%\" class=\"p\" style=\"width:%1%px;height:%2%px;") % pageWidth % pageHeight % pageNum;
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html_fout << boost::format("background-image:url(p%|3$x|.png);background-position:0 0;background-size:%1%px %2%px;background-repeat:no-repeat;") % pageWidth % pageHeight % pageNum;
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html_fout << "\">" << endl;
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cur_fn_id = cur_fs_id = cur_tm_id = cur_color_id = 0;
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cur_tx = cur_ty = 0;
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cur_font_size = 0;
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memcpy(cur_ctm, id_matrix, sizeof(cur_ctm));
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memcpy(draw_ctm, id_matrix, sizeof(draw_ctm));
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draw_font_size = 0;
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draw_scale = 1.0;
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draw_tx = draw_ty = 0;
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cur_color.r = cur_color.g = cur_color.b = 0;
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reset_state_track();
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}
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void HTMLRenderer::endPage() {
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close_cur_line();
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// close page
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html_fout << "</div>" << endl;
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}
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void HTMLRenderer::drawString(GfxState * state, GooString * s)
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{
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if(s->getLength() == 0)
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return;
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auto font = state->getFont();
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if((font == nullptr) || (font->getWMode()))
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{
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return;
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}
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//hidden
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if((state->getRender() & 3) == 3)
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{
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return;
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}
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// see if the line has to be closed due to state change
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check_state_change(state);
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// if the line is still open, try to merge with it
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if(line_opened)
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{
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double target = (cur_tx - draw_tx) * draw_scale;
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if(target > -param->h_eps)
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{
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if(target > param->h_eps)
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{
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double w;
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auto wid = install_whitespace(target, w);
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html_fout << boost::format("<span class=\"w w%|1$x|\"> </span>") % wid;
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draw_tx += w / draw_scale;
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}
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}
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else
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{
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// or can we shift left using simple tags?
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close_cur_line();
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}
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}
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if(!line_opened)
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{
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// have to open a new line
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// classes
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html_fout << "<div class=\"l "
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<< boost::format("f%|1$x| s%|2$x| c%|3$x|") % cur_fn_id % cur_fs_id % cur_color_id;
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// "t0" is the id_matrix
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if(cur_tm_id != 0)
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html_fout << boost::format(" t%|1$x|") % cur_tm_id;
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{
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double x,y; // in user space
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state->transform(state->getCurX(), state->getCurY(), &x, &y);
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// TODO: recheck descent/ascent
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html_fout << "\" style=\""
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<< "bottom:" << (y + state->getFont()->getDescent() * draw_font_size) << "px;"
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<< "top:" << (pageHeight - y - state->getFont()->getAscent() * draw_font_size) << "px;"
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<< "left:" << x << "px;"
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;
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}
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// TODO: tracking
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// letter & word spacing
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if(_is_positive(state->getCharSpace()))
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html_fout << "letter-spacing:" << state->getCharSpace() << "px;";
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if(_is_positive(state->getWordSpace()))
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html_fout << "word-spacing:" << state->getWordSpace() << "px;";
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//debug
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//real pos & hori_scale
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if(0)
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{
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#if 0
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html_fout << "\"";
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double x,y;
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state->transform(state->getCurX(), state->getCurY(), &x, &y);
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html_fout << boost::format("data-lx=\"%5%\" data-ly=\"%6%\" data-drawscale=\"%4%\" data-x=\"%1%\" data-y=\"%2%\" data-hs=\"%3%")
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%x%y%(state->getHorizScaling())%draw_scale%state->getLineX()%state->getLineY();
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#endif
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}
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html_fout << "\">";
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line_opened = true;
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draw_tx = cur_tx;
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}
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// Now ready to output
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// get the unicodes
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char *p = s->getCString();
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int len = s->getLength();
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double dx = 0;
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double dy = 0;
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double dx1,dy1;
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double ox, oy;
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int nChars = 0;
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int nSpaces = 0;
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int uLen;
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CharCode code;
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Unicode *u = nullptr;
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while (len > 0) {
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auto n = font->getNextChar(p, len, &code, &u, &uLen, &dx1, &dy1, &ox, &oy);
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if(!(_equal(ox, 0) && _equal(oy, 0)))
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{
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std::cerr << "TODO: non-zero origins" << std::endl;
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}
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if(uLen == 0)
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{
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// TODO
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#if 0
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CharCode c = 0;
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for(int i = 0; i < n; ++i)
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{
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c = (c<<8) | (code&0xff);
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code >>= 8;
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}
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for(int i = 0; i < n; ++i)
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{
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Unicode u = (c&0xff);
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c >>= 8;
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outputUnicodes(html_fout, &u, 1);
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}
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#endif
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}
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else
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{
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outputUnicodes(html_fout, u, uLen);
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}
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dx += dx1;
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dy += dy1;
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if (n == 1 && *p == ' ')
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{
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++nSpaces;
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}
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++nChars;
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p += n;
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len -= n;
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}
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dx = (dx * state->getFontSize()
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+ nChars * state->getCharSpace()
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+ nSpaces * state->getWordSpace()) * state->getHorizScaling();
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dy *= state->getFontSize();
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cur_tx += dx;
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cur_ty += dy;
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draw_tx += dx;
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draw_ty += dy;
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}
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void HTMLRenderer::drawImage(GfxState * state, Object * ref, Stream * str, int width, int height, GfxImageColorMap * colorMap, GBool interpolate, int *maskColors, GBool inlineImg)
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{
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if(maskColors)
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return;
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boost::gil::rgb8_image_t img(width, height);
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auto imgview = view(img);
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auto loc = imgview.xy_at(0,0);
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ImageStream * img_stream = new ImageStream(str, width, colorMap->getNumPixelComps(), colorMap->getBits());
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img_stream->reset();
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for(int i = 0; i < height; ++i)
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{
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auto p = img_stream->getLine();
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for(int j = 0; j < width; ++j)
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{
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GfxRGB rgb;
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colorMap->getRGB(p, &rgb);
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*loc = boost::gil::rgb8_pixel_t(colToByte(rgb.r), colToByte(rgb.g), colToByte(rgb.b));
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p += colorMap->getNumPixelComps();
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++ loc.x();
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}
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loc = imgview.xy_at(0, i+1);
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}
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boost::gil::png_write_view((boost::format("i%|1$x|.png")%image_count).str(), imgview);
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img_stream->close();
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delete img_stream;
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close_cur_line();
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double * ctm = state->getCTM();
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ctm[4] = ctm[5] = 0.0;
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html_fout << boost::format("<img class=\"i t%2%\" style=\"left:%3%px;bottom:%4%px;width:%5%px;height:%6%px;\" src=\"i%|1$x|.png\" />") % image_count % install_transform_matrix(ctm) % state->getCurX() % state->getCurY() % width % height << endl;
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++ image_count;
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}
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@ -12,6 +12,26 @@
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#include <boost/algorithm/string.hpp>
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#include <boost/format.hpp>
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/*
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* CSS classes
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*
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* p - Page
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* l - Line
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* w - White space
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* i - Image
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*
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*
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* Reusable CSS classes
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*
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* f<hex> - Font (also for font names)
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* s<hex> - font Size
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* w<hex> - White space
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* t<hex> - Transform matrix
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* c<hex> - Color
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*
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*/
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void HTMLRenderer::export_remote_font(long long fn_id, const string & suffix, const string & format, GfxFont * font)
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{
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allcss_fout << boost::format("@font-face{font-family:f%|1$x|;src:url(f%|1$x|%2%)format(\"%3%\");}.f%|1$x|{font-family:f%|1$x|;") % fn_id % suffix % format;
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139
src/HTMLRenderer/general.cc
Normal file
139
src/HTMLRenderer/general.cc
Normal file
@ -0,0 +1,139 @@
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/*
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* general.cc
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*
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* Hanlding general stuffs
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*
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* TODO: better name for this file?
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*
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* by WangLu
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* 2012.08.14
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*/
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#include <iostream>
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#include <boost/format.hpp>
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#include <boost/filesystem/fstream.hpp>
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#include <splash/SplashBitmap.h>
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#include "HTMLRenderer.h"
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#include "BackgroundRenderer.h"
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#include "config.h"
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HTMLRenderer::HTMLRenderer(const Param * param)
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:line_opened(false)
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,html_fout(param->output_filename.c_str(), ofstream::binary)
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,allcss_fout("all.css")
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,fontscript_fout(TMP_DIR+"/convert.pe")
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,image_count(0)
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,param(param)
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{
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// install default font & size
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install_font(nullptr);
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install_font_size(0);
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install_transform_matrix(id_matrix);
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GfxRGB black;
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black.r = black.g = black.b = 0;
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install_color(&black);
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}
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HTMLRenderer::~HTMLRenderer()
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{ }
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void HTMLRenderer::process(PDFDoc *doc)
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{
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std::cerr << "Processing Text: ";
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write_html_head();
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xref = doc->getXRef();
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for(int i = param->first_page; i <= param->last_page ; ++i)
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{
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doc->displayPage(this, i, param->h_dpi, param->v_dpi,
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0, true, false, false,
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nullptr, nullptr, nullptr, nullptr);
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std::cerr << ".";
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std::cerr.flush();
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}
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write_html_tail();
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std::cerr << std::endl;
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if(param->process_nontext)
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{
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// Render non-text objects as image
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std::cerr << "Processing Others: ";
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// copied from poppler
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SplashColor color;
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color[0] = color[1] = color[2] = 255;
|
||||
|
||||
auto bg_renderer = new BackgroundRenderer(splashModeRGB8, 4, gFalse, color);
|
||||
bg_renderer->startDoc(doc);
|
||||
|
||||
for(int i = param->first_page; i <= param->last_page ; ++i)
|
||||
{
|
||||
doc->displayPage(bg_renderer, i, param->h_dpi2, param->v_dpi2,
|
||||
0, true, false, false,
|
||||
nullptr, nullptr, nullptr, nullptr);
|
||||
bg_renderer->getBitmap()->writeImgFile(splashFormatPng, (char*)(boost::format("p%|1$x|.png")%i).str().c_str(), param->h_dpi2, param->v_dpi2);
|
||||
|
||||
std::cerr << ".";
|
||||
std::cerr.flush();
|
||||
}
|
||||
delete bg_renderer;
|
||||
std::cerr << std::endl;
|
||||
}
|
||||
}
|
||||
|
||||
void HTMLRenderer::write_html_head()
|
||||
{
|
||||
html_fout << boost::filesystem::ifstream(PDF2HTMLEX_LIB_PATH / "head.html", ifstream::binary).rdbuf();
|
||||
}
|
||||
|
||||
void HTMLRenderer::write_html_tail()
|
||||
{
|
||||
html_fout << boost::filesystem::ifstream(PDF2HTMLEX_LIB_PATH / "tail.html", ifstream::binary).rdbuf();
|
||||
}
|
||||
|
||||
void HTMLRenderer::startPage(int pageNum, GfxState *state)
|
||||
{
|
||||
this->pageNum = pageNum;
|
||||
this->pageWidth = state->getPageWidth();
|
||||
this->pageHeight = state->getPageHeight();
|
||||
|
||||
assert(!line_opened);
|
||||
|
||||
html_fout << boost::format("<div id=\"page-%3%\" class=\"p\" style=\"width:%1%px;height:%2%px;") % pageWidth % pageHeight % pageNum;
|
||||
|
||||
html_fout << boost::format("background-image:url(p%|3$x|.png);background-position:0 0;background-size:%1%px %2%px;background-repeat:no-repeat;") % pageWidth % pageHeight % pageNum;
|
||||
|
||||
html_fout << "\">" << endl;
|
||||
|
||||
cur_fn_id = cur_fs_id = cur_tm_id = cur_color_id = 0;
|
||||
cur_tx = cur_ty = 0;
|
||||
cur_font_size = 0;
|
||||
|
||||
memcpy(cur_ctm, id_matrix, sizeof(cur_ctm));
|
||||
memcpy(draw_ctm, id_matrix, sizeof(draw_ctm));
|
||||
draw_font_size = 0;
|
||||
draw_scale = 1.0;
|
||||
draw_tx = draw_ty = 0;
|
||||
|
||||
cur_color.r = cur_color.g = cur_color.b = 0;
|
||||
|
||||
reset_state_track();
|
||||
}
|
||||
|
||||
void HTMLRenderer::endPage() {
|
||||
close_cur_line();
|
||||
// close page
|
||||
html_fout << "</div>" << endl;
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
62
src/HTMLRenderer/image.cc
Normal file
62
src/HTMLRenderer/image.cc
Normal file
@ -0,0 +1,62 @@
|
||||
/*
|
||||
* image.cc
|
||||
*
|
||||
* Handling images
|
||||
*
|
||||
* by WangLu
|
||||
* 2012.08.14
|
||||
*/
|
||||
|
||||
#include <boost/format.hpp>
|
||||
// for gil bug
|
||||
const int *int_p_NULL = nullptr;
|
||||
#include <boost/gil/gil_all.hpp>
|
||||
#include <boost/gil/extension/io/png_dynamic_io.hpp>
|
||||
|
||||
#include "HTMLRenderer.h"
|
||||
|
||||
|
||||
void HTMLRenderer::drawImage(GfxState * state, Object * ref, Stream * str, int width, int height, GfxImageColorMap * colorMap, GBool interpolate, int *maskColors, GBool inlineImg)
|
||||
{
|
||||
if(maskColors)
|
||||
return;
|
||||
|
||||
boost::gil::rgb8_image_t img(width, height);
|
||||
auto imgview = view(img);
|
||||
auto loc = imgview.xy_at(0,0);
|
||||
|
||||
ImageStream * img_stream = new ImageStream(str, width, colorMap->getNumPixelComps(), colorMap->getBits());
|
||||
img_stream->reset();
|
||||
|
||||
for(int i = 0; i < height; ++i)
|
||||
{
|
||||
auto p = img_stream->getLine();
|
||||
for(int j = 0; j < width; ++j)
|
||||
{
|
||||
GfxRGB rgb;
|
||||
colorMap->getRGB(p, &rgb);
|
||||
|
||||
*loc = boost::gil::rgb8_pixel_t(colToByte(rgb.r), colToByte(rgb.g), colToByte(rgb.b));
|
||||
|
||||
p += colorMap->getNumPixelComps();
|
||||
|
||||
++ loc.x();
|
||||
}
|
||||
|
||||
loc = imgview.xy_at(0, i+1);
|
||||
}
|
||||
|
||||
boost::gil::png_write_view((boost::format("i%|1$x|.png")%image_count).str(), imgview);
|
||||
|
||||
img_stream->close();
|
||||
delete img_stream;
|
||||
|
||||
close_cur_line();
|
||||
|
||||
double * ctm = state->getCTM();
|
||||
ctm[4] = ctm[5] = 0.0;
|
||||
html_fout << boost::format("<img class=\"i t%2%\" style=\"left:%3%px;bottom:%4%px;width:%5%px;height:%6%px;\" src=\"i%|1$x|.png\" />") % image_count % install_transform_matrix(ctm) % state->getCurX() % state->getCurY() % width % height << endl;
|
||||
|
||||
|
||||
++ image_count;
|
||||
}
|
||||
@ -91,124 +91,8 @@ long long HTMLRenderer::install_font(GfxFont * font)
|
||||
|
||||
}
|
||||
|
||||
std::string HTMLRenderer::dump_embedded_font (GfxFont * font, long long fn_id)
|
||||
{
|
||||
// mupdf consulted
|
||||
|
||||
Object ref_obj, font_obj, font_obj2, fontdesc_obj;
|
||||
Object obj, obj1, obj2;
|
||||
Dict * dict = nullptr;
|
||||
|
||||
std::string suffix, subtype;
|
||||
|
||||
char buf[1024];
|
||||
int len;
|
||||
|
||||
ofstream outf;
|
||||
|
||||
auto * id = font->getID();
|
||||
ref_obj.initRef(id->num, id->gen);
|
||||
ref_obj.fetch(xref, &font_obj);
|
||||
ref_obj.free();
|
||||
|
||||
if(!font_obj.isDict())
|
||||
{
|
||||
std::cerr << "Font object is not a dictionary" << std::endl;
|
||||
goto err;
|
||||
}
|
||||
|
||||
dict = font_obj.getDict();
|
||||
if(dict->lookup("DescendantFonts", &font_obj2)->isArray())
|
||||
{
|
||||
if(font_obj2.arrayGetLength() == 0)
|
||||
{
|
||||
std::cerr << "Warning: empty DescendantFonts array" << std::endl;
|
||||
}
|
||||
else
|
||||
{
|
||||
if(font_obj2.arrayGetLength() > 1)
|
||||
std::cerr << "TODO: multiple entries in DescendantFonts array" << std::endl;
|
||||
|
||||
if(font_obj2.arrayGet(0, &obj2)->isDict())
|
||||
{
|
||||
dict = obj2.getDict();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if(!dict->lookup("FontDescriptor", &fontdesc_obj)->isDict())
|
||||
{
|
||||
std::cerr << "Cannot find FontDescriptor " << std::endl;
|
||||
goto err;
|
||||
}
|
||||
|
||||
dict = fontdesc_obj.getDict();
|
||||
|
||||
if(dict->lookup("FontFile3", &obj)->isStream())
|
||||
{
|
||||
if(obj.streamGetDict()->lookup("Subtype", &obj1)->isName())
|
||||
{
|
||||
subtype = obj1.getName();
|
||||
if(subtype == "Type1C")
|
||||
{
|
||||
suffix = ".cff";
|
||||
}
|
||||
else if (subtype == "CIDFontType0C")
|
||||
{
|
||||
suffix = ".cid";
|
||||
}
|
||||
else
|
||||
{
|
||||
std::cerr << "Unknown subtype: " << subtype << std::endl;
|
||||
goto err;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
std::cerr << "Invalid subtype in font descriptor" << std::endl;
|
||||
goto err;
|
||||
}
|
||||
}
|
||||
else if (dict->lookup("FontFile2", &obj)->isStream())
|
||||
{
|
||||
suffix = ".ttf";
|
||||
}
|
||||
else if (dict->lookup("FontFile", &obj)->isStream())
|
||||
{
|
||||
suffix = ".ttf";
|
||||
}
|
||||
else
|
||||
{
|
||||
std::cerr << "Cannot find FontFile for dump" << std::endl;
|
||||
goto err;
|
||||
}
|
||||
|
||||
if(suffix == "")
|
||||
{
|
||||
std::cerr << "Font type unrecognized" << std::endl;
|
||||
goto err;
|
||||
}
|
||||
|
||||
obj.streamReset();
|
||||
outf.open((boost::format("%1%/f%|2$x|%3%")%TMP_DIR%fn_id%suffix).str().c_str(), ofstream::binary);
|
||||
while((len = obj.streamGetChars(1024, (Guchar*)buf)) > 0)
|
||||
{
|
||||
outf.write(buf, len);
|
||||
}
|
||||
outf.close();
|
||||
obj.streamClose();
|
||||
|
||||
err:
|
||||
obj2.free();
|
||||
obj1.free();
|
||||
obj.free();
|
||||
|
||||
fontdesc_obj.free();
|
||||
font_obj2.free();
|
||||
font_obj.free();
|
||||
return suffix;
|
||||
}
|
||||
|
||||
// TODO
|
||||
// add a new function and move to text.cc
|
||||
void HTMLRenderer::install_embedded_font(GfxFont * font, const std::string & suffix, long long fn_id)
|
||||
{
|
||||
// TODO Should use standard way to handle CID fonts
|
||||
|
||||
298
src/HTMLRenderer/text.cc
Normal file
298
src/HTMLRenderer/text.cc
Normal file
@ -0,0 +1,298 @@
|
||||
/*
|
||||
* text.ccc
|
||||
*
|
||||
* Handling text and relative stuffs
|
||||
*
|
||||
* by WangLu
|
||||
* 2012.08.14
|
||||
*/
|
||||
|
||||
#include <iostream>
|
||||
|
||||
#include <boost/format.hpp>
|
||||
|
||||
#include "HTMLRenderer.h"
|
||||
|
||||
std::string HTMLRenderer::dump_embedded_font (GfxFont * font, long long fn_id)
|
||||
{
|
||||
// mupdf consulted
|
||||
|
||||
Object ref_obj, font_obj, font_obj2, fontdesc_obj;
|
||||
Object obj, obj1, obj2;
|
||||
Dict * dict = nullptr;
|
||||
|
||||
std::string suffix, subtype;
|
||||
|
||||
char buf[1024];
|
||||
int len;
|
||||
|
||||
ofstream outf;
|
||||
|
||||
auto * id = font->getID();
|
||||
ref_obj.initRef(id->num, id->gen);
|
||||
ref_obj.fetch(xref, &font_obj);
|
||||
ref_obj.free();
|
||||
|
||||
if(!font_obj.isDict())
|
||||
{
|
||||
std::cerr << "Font object is not a dictionary" << std::endl;
|
||||
goto err;
|
||||
}
|
||||
|
||||
dict = font_obj.getDict();
|
||||
if(dict->lookup("DescendantFonts", &font_obj2)->isArray())
|
||||
{
|
||||
if(font_obj2.arrayGetLength() == 0)
|
||||
{
|
||||
std::cerr << "Warning: empty DescendantFonts array" << std::endl;
|
||||
}
|
||||
else
|
||||
{
|
||||
if(font_obj2.arrayGetLength() > 1)
|
||||
std::cerr << "TODO: multiple entries in DescendantFonts array" << std::endl;
|
||||
|
||||
if(font_obj2.arrayGet(0, &obj2)->isDict())
|
||||
{
|
||||
dict = obj2.getDict();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if(!dict->lookup("FontDescriptor", &fontdesc_obj)->isDict())
|
||||
{
|
||||
std::cerr << "Cannot find FontDescriptor " << std::endl;
|
||||
goto err;
|
||||
}
|
||||
|
||||
dict = fontdesc_obj.getDict();
|
||||
|
||||
if(dict->lookup("FontFile3", &obj)->isStream())
|
||||
{
|
||||
if(obj.streamGetDict()->lookup("Subtype", &obj1)->isName())
|
||||
{
|
||||
subtype = obj1.getName();
|
||||
if(subtype == "Type1C")
|
||||
{
|
||||
suffix = ".cff";
|
||||
}
|
||||
else if (subtype == "CIDFontType0C")
|
||||
{
|
||||
suffix = ".cid";
|
||||
}
|
||||
else
|
||||
{
|
||||
std::cerr << "Unknown subtype: " << subtype << std::endl;
|
||||
goto err;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
std::cerr << "Invalid subtype in font descriptor" << std::endl;
|
||||
goto err;
|
||||
}
|
||||
}
|
||||
else if (dict->lookup("FontFile2", &obj)->isStream())
|
||||
{
|
||||
suffix = ".ttf";
|
||||
}
|
||||
else if (dict->lookup("FontFile", &obj)->isStream())
|
||||
{
|
||||
suffix = ".ttf";
|
||||
}
|
||||
else
|
||||
{
|
||||
std::cerr << "Cannot find FontFile for dump" << std::endl;
|
||||
goto err;
|
||||
}
|
||||
|
||||
if(suffix == "")
|
||||
{
|
||||
std::cerr << "Font type unrecognized" << std::endl;
|
||||
goto err;
|
||||
}
|
||||
|
||||
obj.streamReset();
|
||||
outf.open((boost::format("%1%/f%|2$x|%3%")%TMP_DIR%fn_id%suffix).str().c_str(), ofstream::binary);
|
||||
while((len = obj.streamGetChars(1024, (Guchar*)buf)) > 0)
|
||||
{
|
||||
outf.write(buf, len);
|
||||
}
|
||||
outf.close();
|
||||
obj.streamClose();
|
||||
|
||||
err:
|
||||
obj2.free();
|
||||
obj1.free();
|
||||
obj.free();
|
||||
|
||||
fontdesc_obj.free();
|
||||
font_obj2.free();
|
||||
font_obj.free();
|
||||
return suffix;
|
||||
}
|
||||
|
||||
void HTMLRenderer::drawString(GfxState * state, GooString * s)
|
||||
{
|
||||
if(s->getLength() == 0)
|
||||
return;
|
||||
|
||||
auto font = state->getFont();
|
||||
if((font == nullptr) || (font->getWMode()))
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
//hidden
|
||||
if((state->getRender() & 3) == 3)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
// see if the line has to be closed due to state change
|
||||
check_state_change(state);
|
||||
|
||||
// if the line is still open, try to merge with it
|
||||
if(line_opened)
|
||||
{
|
||||
double target = (cur_tx - draw_tx) * draw_scale;
|
||||
if(target > -param->h_eps)
|
||||
{
|
||||
if(target > param->h_eps)
|
||||
{
|
||||
double w;
|
||||
auto wid = install_whitespace(target, w);
|
||||
html_fout << boost::format("<span class=\"w w%|1$x|\"> </span>") % wid;
|
||||
draw_tx += w / draw_scale;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
// or can we shift left using simple tags?
|
||||
close_cur_line();
|
||||
}
|
||||
}
|
||||
|
||||
if(!line_opened)
|
||||
{
|
||||
// have to open a new line
|
||||
|
||||
// classes
|
||||
html_fout << "<div class=\"l "
|
||||
<< boost::format("f%|1$x| s%|2$x| c%|3$x|") % cur_fn_id % cur_fs_id % cur_color_id;
|
||||
|
||||
// "t0" is the id_matrix
|
||||
if(cur_tm_id != 0)
|
||||
html_fout << boost::format(" t%|1$x|") % cur_tm_id;
|
||||
|
||||
{
|
||||
double x,y; // in user space
|
||||
state->transform(state->getCurX(), state->getCurY(), &x, &y);
|
||||
// TODO: recheck descent/ascent
|
||||
html_fout << "\" style=\""
|
||||
<< "bottom:" << (y + state->getFont()->getDescent() * draw_font_size) << "px;"
|
||||
<< "top:" << (pageHeight - y - state->getFont()->getAscent() * draw_font_size) << "px;"
|
||||
<< "left:" << x << "px;"
|
||||
;
|
||||
}
|
||||
|
||||
// TODO: tracking
|
||||
// letter & word spacing
|
||||
if(_is_positive(state->getCharSpace()))
|
||||
html_fout << "letter-spacing:" << state->getCharSpace() << "px;";
|
||||
if(_is_positive(state->getWordSpace()))
|
||||
html_fout << "word-spacing:" << state->getWordSpace() << "px;";
|
||||
|
||||
//debug
|
||||
//real pos & hori_scale
|
||||
if(0)
|
||||
{
|
||||
#if 0
|
||||
html_fout << "\"";
|
||||
double x,y;
|
||||
state->transform(state->getCurX(), state->getCurY(), &x, &y);
|
||||
html_fout << boost::format("data-lx=\"%5%\" data-ly=\"%6%\" data-drawscale=\"%4%\" data-x=\"%1%\" data-y=\"%2%\" data-hs=\"%3%")
|
||||
%x%y%(state->getHorizScaling())%draw_scale%state->getLineX()%state->getLineY();
|
||||
#endif
|
||||
}
|
||||
|
||||
html_fout << "\">";
|
||||
|
||||
line_opened = true;
|
||||
|
||||
draw_tx = cur_tx;
|
||||
}
|
||||
|
||||
|
||||
// Now ready to output
|
||||
// get the unicodes
|
||||
char *p = s->getCString();
|
||||
int len = s->getLength();
|
||||
|
||||
double dx = 0;
|
||||
double dy = 0;
|
||||
double dx1,dy1;
|
||||
double ox, oy;
|
||||
|
||||
int nChars = 0;
|
||||
int nSpaces = 0;
|
||||
int uLen;
|
||||
|
||||
CharCode code;
|
||||
Unicode *u = nullptr;
|
||||
|
||||
while (len > 0) {
|
||||
auto n = font->getNextChar(p, len, &code, &u, &uLen, &dx1, &dy1, &ox, &oy);
|
||||
|
||||
if(!(_equal(ox, 0) && _equal(oy, 0)))
|
||||
{
|
||||
std::cerr << "TODO: non-zero origins" << std::endl;
|
||||
}
|
||||
|
||||
if(uLen == 0)
|
||||
{
|
||||
// TODO
|
||||
#if 0
|
||||
CharCode c = 0;
|
||||
for(int i = 0; i < n; ++i)
|
||||
{
|
||||
c = (c<<8) | (code&0xff);
|
||||
code >>= 8;
|
||||
}
|
||||
for(int i = 0; i < n; ++i)
|
||||
{
|
||||
Unicode u = (c&0xff);
|
||||
c >>= 8;
|
||||
outputUnicodes(html_fout, &u, 1);
|
||||
}
|
||||
#endif
|
||||
}
|
||||
else
|
||||
{
|
||||
outputUnicodes(html_fout, u, uLen);
|
||||
}
|
||||
|
||||
dx += dx1;
|
||||
dy += dy1;
|
||||
|
||||
if (n == 1 && *p == ' ')
|
||||
{
|
||||
++nSpaces;
|
||||
}
|
||||
|
||||
++nChars;
|
||||
p += n;
|
||||
len -= n;
|
||||
}
|
||||
|
||||
dx = (dx * state->getFontSize()
|
||||
+ nChars * state->getCharSpace()
|
||||
+ nSpaces * state->getWordSpace()) * state->getHorizScaling();
|
||||
|
||||
dy *= state->getFontSize();
|
||||
|
||||
cur_tx += dx;
|
||||
cur_ty += dy;
|
||||
|
||||
draw_tx += dx;
|
||||
draw_ty += dy;
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user