2012-08-14 08:23:15 +00:00
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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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* by WangLu
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* 2012.08.14
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*/
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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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2012-08-14 09:13:29 +00:00
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#include "namespace.h"
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2012-09-03 12:57:14 +00:00
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#include "ff/ff.h"
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2012-08-14 08:23:15 +00:00
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2012-08-21 20:22:56 +00:00
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using std::fixed;
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2012-08-14 12:30:18 +00:00
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using std::flush;
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2012-08-15 04:27:41 +00:00
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using boost::filesystem::remove;
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using boost::filesystem::filesystem_error;
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2012-08-14 12:30:18 +00:00
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2012-08-14 08:23:15 +00:00
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HTMLRenderer::HTMLRenderer(const Param * param)
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2012-08-16 10:11:22 +00:00
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:line_status(LineStatus::NONE)
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2012-08-14 08:23:15 +00:00
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,image_count(0)
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,param(param)
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2012-08-14 09:50:16 +00:00
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,dest_dir(param->dest_dir)
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2012-08-15 06:27:59 +00:00
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,tmp_dir(param->tmp_dir)
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2012-08-14 08:23:15 +00:00
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{
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2012-09-03 12:57:14 +00:00
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ff_init();
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2012-08-14 08:23:15 +00:00
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}
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HTMLRenderer::~HTMLRenderer()
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2012-08-15 04:27:41 +00:00
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{
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clean_tmp_files();
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}
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2012-08-14 08:23:15 +00:00
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void HTMLRenderer::process(PDFDoc *doc)
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{
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2012-08-14 12:30:18 +00:00
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cerr << "Working: ";
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2012-08-14 08:23:15 +00:00
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xref = doc->getXRef();
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2012-08-14 12:30:18 +00:00
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BackgroundRenderer * bg_renderer = nullptr;
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2012-08-14 08:23:15 +00:00
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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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// copied from poppler
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SplashColor color;
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color[0] = color[1] = color[2] = 255;
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2012-08-14 12:30:18 +00:00
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bg_renderer = new BackgroundRenderer(splashModeRGB8, 4, gFalse, color);
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2012-08-14 08:23:15 +00:00
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bg_renderer->startDoc(doc);
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2012-08-14 12:30:18 +00:00
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}
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2012-08-14 08:23:15 +00:00
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2012-08-14 12:30:18 +00:00
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pre_process();
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for(int i = param->first_page; i <= param->last_page ; ++i)
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{
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if(param->process_nontext)
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2012-08-14 08:23:15 +00:00
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{
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2012-08-15 13:26:13 +00:00
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doc->displayPage(bg_renderer, i, param->h_dpi, param->v_dpi,
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2012-08-14 08:23:15 +00:00
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0, true, false, false,
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nullptr, nullptr, nullptr, nullptr);
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2012-08-15 04:27:41 +00:00
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string fn = (format("p%|1$x|.png")%i).str();
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2012-08-15 13:26:13 +00:00
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bg_renderer->getBitmap()->writeImgFile(splashFormatPng, (char*)((param->single_html ? tmp_dir : dest_dir) / fn) .c_str(), param->h_dpi, param->v_dpi);
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2012-08-15 04:27:41 +00:00
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if(param->single_html)
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add_tmp_file(fn);
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2012-08-14 08:23:15 +00:00
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}
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2012-08-14 12:30:18 +00:00
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2012-08-15 13:26:13 +00:00
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doc->displayPage(this, i, param->zoom * DEFAULT_DPI, param->zoom * DEFAULT_DPI,
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2012-08-14 12:30:18 +00:00
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0, true, false, false,
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nullptr, nullptr, nullptr, nullptr);
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cerr << "." << flush;
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2012-08-14 08:23:15 +00:00
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}
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2012-08-14 12:30:18 +00:00
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post_process();
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if(bg_renderer)
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delete bg_renderer;
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cerr << endl;
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2012-08-14 08:23:15 +00:00
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}
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2012-08-14 12:30:18 +00:00
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void HTMLRenderer::pre_process()
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2012-08-14 08:23:15 +00:00
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{
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2012-08-14 18:28:19 +00:00
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// we may output utf8 characters, so use binary
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2012-08-15 04:27:41 +00:00
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if(param->single_html)
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2012-08-14 12:30:18 +00:00
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{
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2012-08-15 07:29:35 +00:00
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// don't use output_file directly
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// otherwise it'll be a disaster when tmp_dir == dest_dir
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const string tmp_output_fn = param->output_filename + ".part";
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html_fout.open(tmp_dir / tmp_output_fn, ofstream::binary);
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allcss_fout.open(tmp_dir / CSS_FILENAME, ofstream::binary);
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2012-08-15 04:27:41 +00:00
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2012-08-15 07:29:35 +00:00
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add_tmp_file(tmp_output_fn);
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add_tmp_file(CSS_FILENAME);
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2012-08-15 04:27:41 +00:00
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}
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else
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{
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html_fout.open(dest_dir / param->output_filename, ofstream::binary);
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2012-08-15 07:29:35 +00:00
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allcss_fout.open(dest_dir / CSS_FILENAME, ofstream::binary);
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2012-08-15 04:27:41 +00:00
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2012-08-17 10:13:21 +00:00
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html_fout << ifstream(PDF2HTMLEX_DATA_PATH / HEAD_HTML_FILENAME, ifstream::binary).rdbuf();
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2012-08-15 07:29:35 +00:00
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html_fout << "<link rel=\"stylesheet\" type=\"text/css\" href=\"" << CSS_FILENAME << "\"/>" << endl;
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2012-08-17 10:13:21 +00:00
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html_fout << ifstream(PDF2HTMLEX_DATA_PATH / NECK_HTML_FILENAME, ifstream::binary).rdbuf();
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2012-08-14 12:30:18 +00:00
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}
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2012-08-21 20:22:56 +00:00
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html_fout << fixed;
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allcss_fout << fixed;
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2012-08-29 17:01:45 +00:00
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allcss_fout << ifstream(PDF2HTMLEX_DATA_PATH / CSS_FILENAME, ifstream::binary).rdbuf();
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2012-08-14 08:23:15 +00:00
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}
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2012-08-14 12:30:18 +00:00
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void HTMLRenderer::post_process()
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2012-08-14 08:23:15 +00:00
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{
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2012-08-14 12:30:18 +00:00
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if(!param->single_html)
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{
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2012-08-17 10:13:21 +00:00
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html_fout << ifstream(PDF2HTMLEX_DATA_PATH / TAIL_HTML_FILENAME, ifstream::binary).rdbuf();
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2012-08-14 12:30:18 +00:00
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}
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html_fout.close();
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allcss_fout.close();
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if(param->single_html)
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{
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process_single_html();
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}
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2012-08-14 08:23:15 +00:00
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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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2012-08-16 10:11:22 +00:00
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assert(line_status == LineStatus::NONE);
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2012-08-14 08:23:15 +00:00
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2012-08-14 18:54:39 +00:00
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html_fout << format("<div id=\"p%|1$x|\" class=\"p\" style=\"width:%2%px;height:%3%px;") % pageNum % pageWidth % pageHeight;
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2012-08-14 08:23:15 +00:00
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2012-08-14 18:54:39 +00:00
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html_fout << "background-image:url(";
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2012-08-14 13:23:33 +00:00
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const std::string fn = (format("p%|1$x|.png") % pageNum).str();
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if(param->single_html)
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{
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2012-08-14 13:48:57 +00:00
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auto path = tmp_dir / fn;
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2012-08-15 03:15:33 +00:00
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html_fout << "'data:image/png;base64," << base64stream(ifstream(path, ifstream::binary)) << "'";
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2012-08-14 13:23:33 +00:00
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}
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else
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{
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2012-08-14 18:54:39 +00:00
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html_fout << fn;
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2012-08-14 13:23:33 +00:00
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}
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2012-08-14 18:54:39 +00:00
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html_fout << format(");background-position:0 0;background-size:%1%px %2%px;background-repeat:no-repeat;\">") % pageWidth % pageHeight;
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2012-08-14 08:23:15 +00:00
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2012-08-21 18:37:25 +00:00
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draw_scale = 1.0;
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2012-08-27 15:09:01 +00:00
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cur_font_info = install_font(nullptr);
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2012-08-21 18:37:25 +00:00
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cur_font_size = draw_font_size = 0;
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cur_fs_id = install_font_size(cur_font_size);
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2012-08-15 10:48:11 +00:00
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2012-08-14 08:23:15 +00:00
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memcpy(cur_ctm, id_matrix, sizeof(cur_ctm));
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2012-08-21 18:37:25 +00:00
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memcpy(draw_ctm, id_matrix, sizeof(draw_ctm));
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cur_tm_id = install_transform_matrix(draw_ctm);
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2012-08-15 10:48:11 +00:00
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cur_letter_space = cur_word_space = 0;
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2012-08-21 18:37:25 +00:00
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cur_ls_id = install_letter_space(cur_letter_space);
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cur_ws_id = install_word_space(cur_word_space);
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2012-08-15 10:48:11 +00:00
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cur_color.r = cur_color.g = cur_color.b = 0;
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2012-08-21 18:37:25 +00:00
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cur_color_id = install_color(&cur_color);
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2012-08-15 10:48:11 +00:00
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2012-08-24 17:40:43 +00:00
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cur_rise = 0;
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cur_rise_id = install_rise(cur_rise);
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2012-08-15 10:48:11 +00:00
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cur_tx = cur_ty = 0;
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2012-08-14 08:23:15 +00:00
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draw_tx = draw_ty = 0;
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2012-08-16 12:26:09 +00:00
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reset_state_change();
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2012-08-20 22:20:20 +00:00
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all_changed = true;
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2012-08-14 08:23:15 +00:00
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}
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void HTMLRenderer::endPage() {
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2012-08-16 10:11:22 +00:00
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close_line();
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2012-08-14 08:23:15 +00:00
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// close page
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html_fout << "</div>" << endl;
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}
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2012-08-14 12:30:18 +00:00
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void HTMLRenderer::process_single_html()
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{
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ofstream out (dest_dir / param->output_filename, ofstream::binary);
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2012-08-17 10:13:21 +00:00
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out << ifstream(PDF2HTMLEX_DATA_PATH / HEAD_HTML_FILENAME , ifstream::binary).rdbuf();
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2012-08-14 12:30:18 +00:00
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out << "<style type=\"text/css\">" << endl;
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2012-08-15 07:29:35 +00:00
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out << ifstream(tmp_dir / CSS_FILENAME, ifstream::binary).rdbuf();
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2012-08-14 12:30:18 +00:00
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out << "</style>" << endl;
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2012-08-17 10:13:21 +00:00
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out << ifstream(PDF2HTMLEX_DATA_PATH / NECK_HTML_FILENAME, ifstream::binary).rdbuf();
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2012-08-14 08:23:15 +00:00
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2012-08-15 07:29:35 +00:00
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out << ifstream(tmp_dir / (param->output_filename + ".part"), ifstream::binary).rdbuf();
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2012-08-14 12:30:18 +00:00
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2012-08-17 10:13:21 +00:00
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out << ifstream(PDF2HTMLEX_DATA_PATH / TAIL_HTML_FILENAME, ifstream::binary).rdbuf();
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2012-08-14 12:30:18 +00:00
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}
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2012-08-14 08:23:15 +00:00
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2012-08-15 04:27:41 +00:00
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void HTMLRenderer::add_tmp_file(const string & fn)
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{
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2012-08-15 07:43:49 +00:00
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if(!param->clean_tmp)
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return;
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2012-08-15 04:27:41 +00:00
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if(tmp_files.insert(fn).second && param->debug)
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cerr << "Add new temporary file: " << fn << endl;
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}
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2012-08-14 08:23:15 +00:00
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2012-08-15 04:27:41 +00:00
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void HTMLRenderer::clean_tmp_files()
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{
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2012-08-15 07:43:49 +00:00
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if(!param->clean_tmp)
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return;
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2012-08-15 04:27:41 +00:00
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for(const auto & fn : tmp_files)
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{
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try
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{
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remove(tmp_dir / fn);
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if(param->debug)
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cerr << "Remove temporary file: " << fn << endl;
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}
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catch(const filesystem_error &)
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{ }
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}
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try
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{
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remove(tmp_dir);
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if(param->debug)
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cerr << "Remove temporary directory: " << tmp_dir << endl;
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}
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catch(const filesystem_error &)
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{ }
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}
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2012-08-15 07:29:35 +00:00
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const std::string HTMLRenderer::HEAD_HTML_FILENAME = "head.html";
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const std::string HTMLRenderer::NECK_HTML_FILENAME = "neck.html";
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const std::string HTMLRenderer::TAIL_HTML_FILENAME = "tail.html";
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const std::string HTMLRenderer::CSS_FILENAME = "all.css";
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