mirror of
https://github.com/pdf2htmlEX/pdf2htmlEX.git
synced 2024-07-05 09:38:40 +00:00
working on images
This commit is contained in:
Lu Wang
parent
df6c0025ea
commit
810fb00de7
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@ -30,8 +30,8 @@ const std::string HTML_HEAD = "<!DOCTYPE html>\n\
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overflow:hidden;\
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display:none;\
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}\
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.p > .l {\
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position:absolute; \
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.p > .l {\
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position:absolute;\
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white-space:pre;\
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}\
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.l > .w {\
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@ -44,22 +44,25 @@ const std::string HTML_HEAD = "<!DOCTYPE html>\n\
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::-moz-selection{\
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background: rgba(168,209,255,0.5);\
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}\
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.p > .i {\
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position:absolute;\
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}\
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</style><link rel=\"stylesheet\" type=\"text/css\" href=\"all.css\" />\
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<script type=\"text/javascript\">\
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function show_pages()\
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{\
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var pages = document.getElementById('pdf-main').childNodes;\
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var idx = 0;\
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var f = function(){\
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if (idx < pages.length) {\
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try{\
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pages[idx].style.display='block';\
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}catch(e){}\
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++idx;\
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setTimeout(f,100);\
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}\
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};\
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f();\
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var pages = document.getElementById('pdf-main').childNodes;\
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var idx = 0;\
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var f = function(){\
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if (idx < pages.length) {\
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try{\
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pages[idx].style.display='block';\
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}catch(e){}\
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++idx;\
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setTimeout(f,100);\
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}\
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};\
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f();\
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};\
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</script>\
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</head><body onload=\"show_pages();\"><div id=\"pdf-main\">";
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@ -39,6 +39,7 @@ const int *int_p_NULL = nullptr;
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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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@ -69,14 +70,12 @@ HTMLRenderer::HTMLRenderer(const Param * param)
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black.r = black.g = black.b = 0;
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install_color(&black);
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html_fout << HTML_HEAD;
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html_fout << endl;
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html_fout << HTML_HEAD << endl;
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}
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HTMLRenderer::~HTMLRenderer()
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{
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html_fout << HTML_TAIL;
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html_fout << endl;
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html_fout << HTML_TAIL << endl;
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}
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void HTMLRenderer::process(PDFDoc *doc)
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@ -133,8 +132,7 @@ void HTMLRenderer::startPage(int pageNum, GfxState *state)
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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 << "\">";
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html_fout << endl;
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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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@ -154,17 +152,14 @@ void HTMLRenderer::startPage(int pageNum, GfxState *state)
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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>";
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html_fout << endl;
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html_fout << "</div>" << endl;
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}
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void HTMLRenderer::close_cur_line()
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{
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if(line_opened)
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{
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html_fout << "</div>";
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html_fout << endl;
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html_fout << "</div>" << endl;
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line_opened = false;
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}
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}
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@ -375,7 +370,10 @@ void HTMLRenderer::drawString(GfxState * state, GooString * s)
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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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boost::gil::rgb16_image_t img(width, height);
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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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@ -390,7 +388,7 @@ void HTMLRenderer::drawImage(GfxState * state, Object * ref, Stream * str, int w
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GfxRGB rgb;
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colorMap->getRGB(p, &rgb);
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*loc = boost::gil::rgb16_pixel_t(rgb.r, rgb.g, rgb.b);
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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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@ -401,10 +399,17 @@ void HTMLRenderer::drawImage(GfxState * state, Object * ref, Stream * str, int w
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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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@ -607,6 +612,25 @@ err:
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void HTMLRenderer::install_embedded_font(GfxFont * font, const std::string & suffix, long long fn_id)
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{
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// TODO Should use standard way to handle CID fonts
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/*
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* How it works:
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*
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* 1.dump the font file directly from the font descriptor and put the glyphs into the correct slots
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*
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* for nonCID
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* nothing need to do
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*
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* for CID + nonTrueType
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* Flatten the font
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*
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* for CID Truetype
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* Just use glyph order, and later we'll map GID (instead of char code) to Unicode
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*
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*
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* 2. map charcode (or GID for CID truetype) to Unicode
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*
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* generate an encoding file and let fontforge handle it.
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*/
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std::string fn = (boost::format("f%|1$x|") % fn_id).str();
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@ -617,13 +641,11 @@ void HTMLRenderer::install_embedded_font(GfxFont * font, const std::string & suf
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if(ctu)
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{
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// TODO: ctu could be CID2Unicode for CID fonts
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int maxcode = 0;
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if(!font->isCIDFont())
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{
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maxcode = 0xff;
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//TODO read code2GID for TrueType
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}
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else
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{
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@ -776,16 +798,13 @@ void HTMLRenderer::export_remote_font(long long fn_id, const string & suffix, co
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allcss_fout << "line-height:" << (a-d) << ";";
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allcss_fout << "}";
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allcss_fout << endl;
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allcss_fout << "}" << endl;
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}
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// TODO: this function is called when some font is unable to process, may use the name there as a hint
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void HTMLRenderer::export_remote_default_font(long long fn_id)
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{
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allcss_fout << boost::format(".f%|1$x|{font-family:sans-serif;color:transparent;visibility:hidden;}")%fn_id;
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allcss_fout << endl;
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allcss_fout << boost::format(".f%|1$x|{font-family:sans-serif;color:transparent;visibility:hidden;}")%fn_id << endl;
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}
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void HTMLRenderer::export_local_font(long long fn_id, GfxFont * font, const string & original_font_name, const string & cssfont)
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@ -812,9 +831,7 @@ void HTMLRenderer::export_local_font(long long fn_id, GfxFont * font, const stri
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allcss_fout << "line-height:" << (a-d) << ";";
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allcss_fout << "}";
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allcss_fout << endl;
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allcss_fout << "}" << endl;
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}
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std::string HTMLRenderer::general_font_family(GfxFont * font)
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@ -829,14 +846,12 @@ std::string HTMLRenderer::general_font_family(GfxFont * font)
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void HTMLRenderer::export_font_size (long long fs_id, double font_size)
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{
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allcss_fout << boost::format(".s%|1$x|{font-size:%2%px;}") % fs_id % font_size;
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allcss_fout << endl;
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allcss_fout << boost::format(".s%|1$x|{font-size:%2%px;}") % fs_id % font_size << endl;
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}
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void HTMLRenderer::export_whitespace (long long ws_id, double ws_width)
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{
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allcss_fout << boost::format(".w%|1$x|{width:%2%px;}") % ws_id % ws_width;
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allcss_fout << endl;
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allcss_fout << boost::format(".w%|1$x|{width:%2%px;}") % ws_id % ws_width << endl;
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}
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void HTMLRenderer::export_transform_matrix (long long tm_id, const double * tm)
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@ -865,15 +880,14 @@ void HTMLRenderer::export_transform_matrix (long long tm_id, const double * tm)
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allcss_fout << boost::format("%1%,%2%);") % tm[4] % -tm[5];
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}
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}
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allcss_fout << "}";
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allcss_fout << endl;
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allcss_fout << "}" << endl;
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}
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void HTMLRenderer::export_color(long long color_id, const GfxRGB * rgb)
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{
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allcss_fout << boost::format(".c%|1$x|{color:rgb(%2%,%3%,%4%);}")
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% color_id % (int)colToByte(rgb->r) % (int)colToByte(rgb->g) % (int)colToByte(rgb->b);
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allcss_fout << endl;
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% color_id % (int)colToByte(rgb->r) % (int)colToByte(rgb->g) % (int)colToByte(rgb->b)
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<< endl;
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}
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void HTMLRenderer::check_state_change(GfxState * state)
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