| //======================================================================== |
| // |
| // HtmlOutputDev.cc |
| // |
| // Copyright 1997-2002 Glyph & Cog, LLC |
| // |
| // Changed 1999-2000 by G.Ovtcharov |
| // |
| // Changed 2002 by Mikhail Kruk |
| // |
| //======================================================================== |
| |
| //======================================================================== |
| // |
| // Modified under the Poppler project - http://poppler.freedesktop.org |
| // |
| // All changes made under the Poppler project to this file are licensed |
| // under GPL version 2 or later |
| // |
| // Copyright (C) 2005-2013, 2016-2022, 2024 Albert Astals Cid <aacid@kde.org> |
| // Copyright (C) 2008 Kjartan Maraas <kmaraas@gnome.org> |
| // Copyright (C) 2008 Boris Toloknov <tlknv@yandex.ru> |
| // Copyright (C) 2008 Haruyuki Kawabe <Haruyuki.Kawabe@unisys.co.jp> |
| // Copyright (C) 2008 Tomas Are Haavet <tomasare@gmail.com> |
| // Copyright (C) 2009 Warren Toomey <wkt@tuhs.org> |
| // Copyright (C) 2009, 2011 Carlos Garcia Campos <carlosgc@gnome.org> |
| // Copyright (C) 2009 Reece Dunn <msclrhd@gmail.com> |
| // Copyright (C) 2010, 2012, 2013, 2022 Adrian Johnson <ajohnson@redneon.com> |
| // Copyright (C) 2010 Hib Eris <hib@hiberis.nl> |
| // Copyright (C) 2010 OSSD CDAC Mumbai by Leena Chourey (leenac@cdacmumbai.in) and Onkar Potdar (onkar@cdacmumbai.in) |
| // Copyright (C) 2011 Joshua Richardson <jric@chegg.com> |
| // Copyright (C) 2011 Stephen Reichling <sreichling@chegg.com> |
| // Copyright (C) 2011, 2012 Igor Slepchin <igor.slepchin@gmail.com> |
| // Copyright (C) 2012 Ihar Filipau <thephilips@gmail.com> |
| // Copyright (C) 2012 Gerald Schmidt <solahcin@gmail.com> |
| // Copyright (C) 2012 Pino Toscano <pino@kde.org> |
| // Copyright (C) 2013 Thomas Freitag <Thomas.Freitag@alfa.de> |
| // Copyright (C) 2013 Julien Nabet <serval2412@yahoo.fr> |
| // Copyright (C) 2013 Johannes Brandstätter <jbrandstaetter@gmail.com> |
| // Copyright (C) 2014 Fabio D'Urso <fabiodurso@hotmail.it> |
| // Copyright (C) 2016 Vincent Le Garrec <legarrec.vincent@gmail.com> |
| // Copyright (C) 2017 Caolán McNamara <caolanm@redhat.com> |
| // Copyright (C) 2018 Klarälvdalens Datakonsult AB, a KDAB Group company, <info@kdab.com>. Work sponsored by the LiMux project of the city of Munich |
| // Copyright (C) 2018 Thibaut Brard <thibaut.brard@gmail.com> |
| // Copyright (C) 2018-2020 Adam Reichold <adam.reichold@t-online.de> |
| // Copyright (C) 2019, 2020, 2022, 2024 Oliver Sander <oliver.sander@tu-dresden.de> |
| // Copyright (C) 2020 Eddie Kohler <ekohler@gmail.com> |
| // Copyright (C) 2021 Christopher Hasse <hasse.christopher@gmail.com> |
| // Copyright (C) 2022 Brian Rosenfield <brosenfi@yahoo.com> |
| // Copyright (C) 2024 g10 Code GmbH, Author: Sune Stolborg Vuorela <sune@vuorela.dk> |
| // |
| // To see a description of the changes please see the Changelog file that |
| // came with your tarball or type make ChangeLog if you are building from git |
| // |
| //======================================================================== |
| |
| #include "config.h" |
| #include <cstdio> |
| #include <cstdlib> |
| #include <cstdarg> |
| #include <cstddef> |
| #include <cctype> |
| #include <cmath> |
| #include <iostream> |
| #include "goo/GooString.h" |
| #include "goo/gbasename.h" |
| #include "goo/gbase64.h" |
| #include "UnicodeMap.h" |
| #include "goo/gmem.h" |
| #include "Error.h" |
| #include "GfxState.h" |
| #include "Page.h" |
| #include "Annot.h" |
| #include "goo/PNGWriter.h" |
| #include "GlobalParams.h" |
| #include "HtmlOutputDev.h" |
| #include "HtmlFonts.h" |
| #include "HtmlUtils.h" |
| #include "InMemoryFile.h" |
| #include "Outline.h" |
| #include "PDFDoc.h" |
| |
| #define DEBUG __FILE__ << ": " << __LINE__ << ": DEBUG: " |
| |
| class HtmlImage |
| { |
| public: |
| HtmlImage(std::string &&_fName, GfxState *state) : fName(std::move(_fName)) |
| { |
| state->transform(0, 0, &xMin, &yMax); |
| state->transform(1, 1, &xMax, &yMin); |
| } |
| ~HtmlImage() = default; |
| HtmlImage(const HtmlImage &) = delete; |
| HtmlImage &operator=(const HtmlImage &) = delete; |
| |
| double xMin, xMax; // image x coordinates |
| double yMin, yMax; // image y coordinates |
| std::string fName; // image file name |
| }; |
| |
| // returns true if x is closer to y than x is to z |
| static inline bool IS_CLOSER(double x, double y, double z) |
| { |
| return std::fabs((x) - (y)) < std::fabs((x) - (z)); |
| } |
| |
| extern bool complexMode; |
| extern bool singleHtml; |
| extern bool dataUrls; |
| extern bool ignore; |
| extern bool printCommands; |
| extern bool printHtml; |
| extern bool noframes; |
| extern bool stout; |
| extern bool xml; |
| extern bool noRoundedCoordinates; |
| extern bool showHidden; |
| extern bool noMerge; |
| |
| extern double wordBreakThreshold; |
| |
| static bool debug = false; |
| |
| #if 0 |
| static GooString* Dirname(GooString* str){ |
| |
| char *p=str->c_str(); |
| int len=str->getLength(); |
| for (int i=len-1;i>=0;i--) |
| if (*(p+i)==SLASH) |
| return new GooString(p,i+1); |
| return new GooString(); |
| } |
| #endif |
| |
| static std::string print_matrix(const double *mat) |
| { |
| return GooString::format("[{0:g} {1:g} {2:g} {3:g} {4:g} {5:g}]", *mat, mat[1], mat[2], mat[3], mat[4], mat[5]); |
| } |
| |
| static std::string print_uni_str(const Unicode *u, const unsigned uLen) |
| { |
| if (!uLen) { |
| return ""; |
| } |
| std::string gstr_buff0 = GooString::format("{0:c}", (*u < 0x7F ? *u & 0xFF : '?')); |
| for (unsigned i = 1; i < uLen; i++) { |
| if (u[i] < 0x7F) { |
| gstr_buff0.push_back(static_cast<char>(u[i]) & 0xFF); |
| } |
| } |
| |
| return gstr_buff0; |
| } |
| |
| //------------------------------------------------------------------------ |
| // HtmlString |
| //------------------------------------------------------------------------ |
| |
| HtmlString::HtmlString(GfxState *state, double fontSize, HtmlFontAccu *_fonts) : fonts(_fonts) |
| { |
| double x, y; |
| |
| state->transform(state->getCurX(), state->getCurY(), &x, &y); |
| if (std::shared_ptr<const GfxFont> font = state->getFont()) { |
| double ascent = font->getAscent(); |
| double descent = font->getDescent(); |
| if (ascent > 1.05) { |
| // printf( "ascent=%.15g is too high, descent=%.15g\n", ascent, descent ); |
| ascent = 1.05; |
| } |
| if (descent < -0.4) { |
| // printf( "descent %.15g is too low, ascent=%.15g\n", descent, ascent ); |
| descent = -0.4; |
| } |
| yMin = y - ascent * fontSize; |
| yMax = y - descent * fontSize; |
| GfxRGB rgb; |
| state->getFillRGB(&rgb); |
| HtmlFont hfont = HtmlFont(*font, std::lround(fontSize), rgb, state->getFillOpacity()); |
| if (isMatRotOrSkew(state->getTextMat())) { |
| double normalizedMatrix[4]; |
| memcpy(normalizedMatrix, state->getTextMat(), sizeof(normalizedMatrix)); |
| // browser rotates the opposite way |
| // so flip the sign of the angle -> sin() components change sign |
| if (debug) { |
| std::cerr << DEBUG << "before transform: " << print_matrix(normalizedMatrix) << std::endl; |
| } |
| normalizedMatrix[1] *= -1; |
| normalizedMatrix[2] *= -1; |
| if (debug) { |
| std::cerr << DEBUG << "after reflecting angle: " << print_matrix(normalizedMatrix) << std::endl; |
| } |
| normalizeRotMat(normalizedMatrix); |
| if (debug) { |
| std::cerr << DEBUG << "after norm: " << print_matrix(normalizedMatrix) << std::endl; |
| } |
| hfont.setRotMat(normalizedMatrix); |
| } |
| fontpos = fonts->AddFont(hfont); |
| } else { |
| // this means that the PDF file draws text without a current font, |
| // which should never happen |
| yMin = y - 0.95 * fontSize; |
| yMax = y + 0.35 * fontSize; |
| fontpos = 0; |
| } |
| if (yMin == yMax) { |
| // this is a sanity check for a case that shouldn't happen -- but |
| // if it does happen, we want to avoid dividing by zero later |
| yMin = y; |
| yMax = y + 1; |
| } |
| col = 0; |
| text = nullptr; |
| xRight = nullptr; |
| link = nullptr; |
| len = size = 0; |
| yxNext = nullptr; |
| xyNext = nullptr; |
| htext = std::make_unique<GooString>(); |
| dir = textDirUnknown; |
| } |
| |
| HtmlString::~HtmlString() |
| { |
| gfree(text); |
| gfree(xRight); |
| } |
| |
| void HtmlString::addChar(GfxState *state, double x, double y, double dx, double dy, Unicode u) |
| { |
| if (dir == textDirUnknown) { |
| // dir = UnicodeMap::getDirection(u); |
| dir = textDirLeftRight; |
| } |
| |
| if (len == size) { |
| size += 16; |
| text = (Unicode *)grealloc(text, size * sizeof(Unicode)); |
| xRight = (double *)grealloc(xRight, size * sizeof(double)); |
| } |
| text[len] = u; |
| if (len == 0) { |
| xMin = x; |
| } |
| xMax = xRight[len] = x + dx; |
| // printf("added char: %f %f xright = %f\n", x, dx, x+dx); |
| ++len; |
| } |
| |
| void HtmlString::endString() |
| { |
| if (dir == textDirRightLeft && len > 1) { |
| // printf("will reverse!\n"); |
| for (int i = 0; i < len / 2; i++) { |
| Unicode ch = text[i]; |
| text[i] = text[len - i - 1]; |
| text[len - i - 1] = ch; |
| } |
| } |
| } |
| |
| //------------------------------------------------------------------------ |
| // HtmlPage |
| //------------------------------------------------------------------------ |
| |
| HtmlPage::HtmlPage(bool rawOrderA) |
| { |
| rawOrder = rawOrderA; |
| curStr = nullptr; |
| yxStrings = nullptr; |
| xyStrings = nullptr; |
| yxCur1 = yxCur2 = nullptr; |
| fonts = new HtmlFontAccu(); |
| links = new HtmlLinks(); |
| pageWidth = 0; |
| pageHeight = 0; |
| fontsPageMarker = 0; |
| DocName = nullptr; |
| firstPage = -1; |
| } |
| |
| HtmlPage::~HtmlPage() |
| { |
| clear(); |
| delete DocName; |
| delete fonts; |
| delete links; |
| for (auto entry : imgList) { |
| delete entry; |
| } |
| } |
| |
| void HtmlPage::updateFont(GfxState *state) |
| { |
| const char *name; |
| int code; |
| double dimLength; |
| |
| // adjust the font size |
| fontSize = state->getTransformedFontSize(); |
| const GfxFont *const font = state->getFont().get(); |
| if (font && font->getType() == fontType3) { |
| // Grab the font size from the font bounding box if possible - remember to |
| // scale from the glyph coordinate system. |
| const double *fontBBox = font->getFontBBox(); |
| const double *fontMat = font->getFontMatrix(); |
| dimLength = (fontBBox[3] - fontBBox[1]) * fontMat[3]; |
| if (dimLength > 0) { |
| fontSize *= dimLength; |
| } else { |
| // This is a hack which makes it possible to deal with some Type 3 |
| // fonts. The problem is that it's impossible to know what the |
| // base coordinate system used in the font is without actually |
| // rendering the font. This code tries to guess by looking at the |
| // width of the character 'm' (which breaks if the font is a |
| // subset that doesn't contain 'm'). |
| for (code = 0; code < 256; ++code) { |
| if ((name = ((Gfx8BitFont *)font)->getCharName(code)) && name[0] == 'm' && name[1] == '\0') { |
| break; |
| } |
| } |
| if (code < 256) { |
| dimLength = ((Gfx8BitFont *)font)->getWidth(code); |
| if (dimLength != 0) { |
| // 600 is a generic average 'm' width -- yes, this is a hack |
| fontSize *= dimLength / 0.6; |
| } |
| } |
| if (fontMat[0] != 0) { |
| fontSize *= fabs(fontMat[3] / fontMat[0]); |
| } |
| } |
| } |
| } |
| |
| void HtmlPage::beginString(GfxState *state, const GooString *s) |
| { |
| curStr = new HtmlString(state, fontSize, fonts); |
| } |
| |
| void HtmlPage::conv() |
| { |
| for (HtmlString *tmp = yxStrings; tmp; tmp = tmp->yxNext) { |
| tmp->htext = HtmlFont::HtmlFilter(tmp->text, tmp->len); |
| |
| size_t linkIndex = 0; |
| if (links->inLink(tmp->xMin, tmp->yMin, tmp->xMax, tmp->yMax, linkIndex)) { |
| tmp->link = links->getLink(linkIndex); |
| } |
| } |
| } |
| |
| void HtmlPage::addChar(GfxState *state, double x, double y, double dx, double dy, double ox, double oy, const Unicode *u, int uLen) |
| { |
| double x1, y1, w1, h1, dx2, dy2; |
| int n, i; |
| state->transform(x, y, &x1, &y1); |
| n = curStr->len; |
| |
| // check that new character is in the same direction as current string |
| // and is not too far away from it before adding |
| // if ((UnicodeMap::getDirection(u[0]) != curStr->dir) || |
| // XXX |
| if (debug) { |
| const double *text_mat = state->getTextMat(); |
| // rotation is (cos q, sin q, -sin q, cos q, 0, 0) |
| // sin q is zero iff there is no rotation, or 180 deg. rotation; |
| // for 180 rotation, cos q will be negative |
| if (text_mat[0] < 0 || !is_within(text_mat[1], .1, 0)) { |
| std::cerr << DEBUG << "rotation matrix for \"" << print_uni_str(u, uLen) << '"' << std::endl; |
| std::cerr << "text " << print_matrix(state->getTextMat()); |
| } |
| } |
| if (n > 0 && // don't start a new string, unless there is already a string |
| // TODO: the following line assumes that text is flowing left to |
| // right, which will not necessarily be the case, e.g. if rotated; |
| // It assesses whether or not two characters are close enough to |
| // be part of the same string |
| fabs(x1 - curStr->xRight[n - 1]) > wordBreakThreshold * (curStr->yMax - curStr->yMin) && |
| // rotation is (cos q, sin q, -sin q, cos q, 0, 0) |
| // sin q is zero iff there is no rotation, or 180 deg. rotation; |
| // for 180 rotation, cos q will be negative |
| !rot_matrices_equal(curStr->getFont().getRotMat(), state->getTextMat())) { |
| endString(); |
| beginString(state, nullptr); |
| } |
| state->textTransformDelta(state->getCharSpace() * state->getHorizScaling(), 0, &dx2, &dy2); |
| dx -= dx2; |
| dy -= dy2; |
| state->transformDelta(dx, dy, &w1, &h1); |
| if (uLen != 0) { |
| w1 /= uLen; |
| h1 /= uLen; |
| } |
| for (i = 0; i < uLen; ++i) { |
| curStr->addChar(state, x1 + i * w1, y1 + i * h1, w1, h1, u[i]); |
| } |
| } |
| |
| void HtmlPage::endString() |
| { |
| HtmlString *p1, *p2; |
| double h, y1, y2; |
| |
| // throw away zero-length strings -- they don't have valid xMin/xMax |
| // values, and they're useless anyway |
| if (curStr->len == 0) { |
| delete curStr; |
| curStr = nullptr; |
| return; |
| } |
| |
| curStr->endString(); |
| |
| #if 0 //~tmp |
| if (curStr->yMax - curStr->yMin > 20) { |
| delete curStr; |
| curStr = NULL; |
| return; |
| } |
| #endif |
| |
| // insert string in y-major list |
| h = curStr->yMax - curStr->yMin; |
| y1 = curStr->yMin + 0.5 * h; |
| y2 = curStr->yMin + 0.8 * h; |
| if (rawOrder) { |
| p1 = yxCur1; |
| p2 = nullptr; |
| } else if ((!yxCur1 || (y1 >= yxCur1->yMin && (y2 >= yxCur1->yMax || curStr->xMax >= yxCur1->xMin))) && (!yxCur2 || (y1 < yxCur2->yMin || (y2 < yxCur2->yMax && curStr->xMax < yxCur2->xMin)))) { |
| p1 = yxCur1; |
| p2 = yxCur2; |
| } else { |
| for (p1 = nullptr, p2 = yxStrings; p2; p1 = p2, p2 = p2->yxNext) { |
| if (y1 < p2->yMin || (y2 < p2->yMax && curStr->xMax < p2->xMin)) { |
| break; |
| } |
| } |
| yxCur2 = p2; |
| } |
| yxCur1 = curStr; |
| if (p1) { |
| p1->yxNext = curStr; |
| } else { |
| yxStrings = curStr; |
| } |
| curStr->yxNext = p2; |
| curStr = nullptr; |
| } |
| |
| static const char *strrstr(const char *s, const char *ss) |
| { |
| const char *p = strstr(s, ss); |
| for (const char *pp = p; pp != nullptr; pp = strstr(p + 1, ss)) { |
| p = pp; |
| } |
| return p; |
| } |
| |
| static void CloseTags(GooString *htext, bool &finish_a, bool &finish_italic, bool &finish_bold) |
| { |
| const char *last_italic = finish_italic && (finish_bold || finish_a) ? strrstr(htext->c_str(), "<i>") : nullptr; |
| const char *last_bold = finish_bold && (finish_italic || finish_a) ? strrstr(htext->c_str(), "<b>") : nullptr; |
| const char *last_a = finish_a && (finish_italic || finish_bold) ? strrstr(htext->c_str(), "<a ") : nullptr; |
| if (finish_a && (finish_italic || finish_bold) && last_a > (last_italic > last_bold ? last_italic : last_bold)) { |
| htext->append("</a>", 4); |
| finish_a = false; |
| } |
| if (finish_italic && finish_bold && last_italic > last_bold) { |
| htext->append("</i>", 4); |
| finish_italic = false; |
| } |
| if (finish_bold) { |
| htext->append("</b>", 4); |
| } |
| if (finish_italic) { |
| htext->append("</i>", 4); |
| } |
| if (finish_a) { |
| htext->append("</a>"); |
| } |
| } |
| |
| // Strings are lines of text; |
| // This function aims to combine strings into lines and paragraphs if !noMerge |
| // It may also strip out duplicate strings (if they are on top of each other); sometimes they are to create a font effect |
| void HtmlPage::coalesce() |
| { |
| HtmlString *str1, *str2; |
| double space, horSpace, vertSpace, vertOverlap; |
| bool addSpace, addLineBreak; |
| int n, i; |
| double curX, curY; |
| |
| #if 0 //~ for debugging |
| for (str1 = yxStrings; str1; str1 = str1->yxNext) { |
| printf("x=%f..%f y=%f..%f size=%2d '", |
| str1->xMin, str1->xMax, str1->yMin, str1->yMax, |
| (int)(str1->yMax - str1->yMin)); |
| for (i = 0; i < str1->len; ++i) { |
| fputc(str1->text[i] & 0xff, stdout); |
| } |
| printf("'\n"); |
| } |
| printf("\n------------------------------------------------------------\n\n"); |
| #endif |
| str1 = yxStrings; |
| |
| if (!str1) { |
| return; |
| } |
| |
| //----- discard duplicated text (fake boldface, drop shadows) |
| if (!complexMode) { /* if not in complex mode get rid of duplicate strings */ |
| HtmlString *str3; |
| bool found; |
| while (str1) { |
| double size = str1->yMax - str1->yMin; |
| double xLimit = str1->xMin + size; |
| found = false; |
| for (str2 = str1, str3 = str1->yxNext; str3 && str3->xMin < xLimit; str2 = str3, str3 = str2->yxNext) { |
| if (str3->len == str1->len && !memcmp(str3->text, str1->text, str1->len * sizeof(Unicode)) && fabs(str3->yMin - str1->yMin) < size * 0.2 && fabs(str3->yMax - str1->yMax) < size * 0.2 |
| && fabs(str3->xMax - str1->xMax) < size * 0.1) { |
| found = true; |
| // printf("found duplicate!\n"); |
| break; |
| } |
| } |
| if (found) { |
| str2->xyNext = str3->xyNext; |
| str2->yxNext = str3->yxNext; |
| delete str3; |
| } else { |
| str1 = str1->yxNext; |
| } |
| } |
| } /*- !complexMode */ |
| |
| str1 = yxStrings; |
| |
| const HtmlFont *hfont1 = getFont(str1); |
| if (hfont1->isBold()) { |
| str1->htext->insert(0, "<b>", 3); |
| } |
| if (hfont1->isItalic()) { |
| str1->htext->insert(0, "<i>", 3); |
| } |
| if (str1->getLink() != nullptr) { |
| const std::unique_ptr<GooString> ls = str1->getLink()->getLinkStart(); |
| str1->htext->insert(0, ls.get()); |
| } |
| curX = str1->xMin; |
| curY = str1->yMin; |
| |
| while (str1 && (str2 = str1->yxNext)) { |
| const HtmlFont *hfont2 = getFont(str2); |
| space = str1->yMax - str1->yMin; // the height of the font's bounding box |
| horSpace = str2->xMin - str1->xMax; |
| // if strings line up on left-hand side AND they are on subsequent lines, we need a line break |
| addLineBreak = !noMerge && (fabs(str1->xMin - str2->xMin) < 0.4) && IS_CLOSER(str2->yMax, str1->yMax + space, str1->yMax); |
| vertSpace = str2->yMin - str1->yMax; |
| |
| // printf("coalesce %d %d %f? ", str1->dir, str2->dir, d); |
| |
| if (str2->yMin >= str1->yMin && str2->yMin <= str1->yMax) { |
| vertOverlap = str1->yMax - str2->yMin; |
| } else if (str2->yMax >= str1->yMin && str2->yMax <= str1->yMax) { |
| vertOverlap = str2->yMax - str1->yMin; |
| } else { |
| vertOverlap = 0; |
| } |
| |
| // Combine strings if: |
| // They appear to be the same font (complex mode only) && going in the same direction AND at least one of the following: |
| // 1. They appear to be part of the same line of text |
| // 2. They appear to be subsequent lines of a paragraph |
| // We assume (1) or (2) above, respectively, based on: |
| // (1) strings overlap vertically AND |
| // horizontal space between end of str1 and start of str2 is consistent with a single space or less; |
| // when rawOrder, the strings have to overlap vertically by at least 50% |
| // (2) Strings flow down the page, but the space between them is not too great, and they are lined up on the left |
| if (((((rawOrder && vertOverlap > 0.5 * space) || (!rawOrder && str2->yMin < str1->yMax)) && (horSpace > -0.5 * space && horSpace < space)) || (vertSpace >= 0 && vertSpace < 0.5 * space && addLineBreak)) |
| && (!complexMode || (hfont1->isEqualIgnoreBold(*hfont2))) && // in complex mode fonts must be the same, in other modes fonts do not metter |
| str1->dir == str2->dir // text direction the same |
| ) { |
| // printf("yes\n"); |
| n = str1->len + str2->len; |
| if ((addSpace = horSpace > wordBreakThreshold * space)) { |
| ++n; |
| } |
| if (addLineBreak) { |
| ++n; |
| } |
| |
| str1->size = (n + 15) & ~15; |
| str1->text = (Unicode *)grealloc(str1->text, str1->size * sizeof(Unicode)); |
| str1->xRight = (double *)grealloc(str1->xRight, str1->size * sizeof(double)); |
| if (addSpace) { |
| str1->text[str1->len] = 0x20; |
| str1->htext->append(xml ? " " : " "); |
| str1->xRight[str1->len] = str2->xMin; |
| ++str1->len; |
| } |
| if (addLineBreak) { |
| str1->text[str1->len] = '\n'; |
| str1->htext->append("<br/>"); |
| str1->xRight[str1->len] = str2->xMin; |
| ++str1->len; |
| str1->yMin = str2->yMin; |
| str1->yMax = str2->yMax; |
| str1->xMax = str2->xMax; |
| int fontLineSize = hfont1->getLineSize(); |
| int curLineSize = (int)(vertSpace + space); |
| if (curLineSize != fontLineSize) { |
| HtmlFont *newfnt = new HtmlFont(*hfont1); |
| newfnt->setLineSize(curLineSize); |
| str1->fontpos = fonts->AddFont(*newfnt); |
| delete newfnt; |
| hfont1 = getFont(str1); |
| // we have to reget hfont2 because it's location could have |
| // changed on resize |
| hfont2 = getFont(str2); |
| } |
| } |
| for (i = 0; i < str2->len; ++i) { |
| str1->text[str1->len] = str2->text[i]; |
| str1->xRight[str1->len] = str2->xRight[i]; |
| ++str1->len; |
| } |
| |
| /* fix <i>, <b> if str1 and str2 differ and handle switch of links */ |
| const HtmlLink *hlink1 = str1->getLink(); |
| const HtmlLink *hlink2 = str2->getLink(); |
| bool switch_links = !hlink1 || !hlink2 || !hlink1->isEqualDest(*hlink2); |
| bool finish_a = switch_links && hlink1 != nullptr; |
| bool finish_italic = hfont1->isItalic() && (!hfont2->isItalic() || finish_a); |
| bool finish_bold = hfont1->isBold() && (!hfont2->isBold() || finish_a || finish_italic); |
| CloseTags(str1->htext.get(), finish_a, finish_italic, finish_bold); |
| if (switch_links && hlink2 != nullptr) { |
| const std::unique_ptr<GooString> ls = hlink2->getLinkStart(); |
| str1->htext->append(ls.get()); |
| } |
| if ((!hfont1->isItalic() || finish_italic) && hfont2->isItalic()) { |
| str1->htext->append("<i>", 3); |
| } |
| if ((!hfont1->isBold() || finish_bold) && hfont2->isBold()) { |
| str1->htext->append("<b>", 3); |
| } |
| |
| str1->htext->append(str2->htext.get()); |
| // str1 now contains href for link of str2 (if it is defined) |
| str1->link = str2->link; |
| hfont1 = hfont2; |
| if (str2->xMax > str1->xMax) { |
| str1->xMax = str2->xMax; |
| } |
| if (str2->yMax > str1->yMax) { |
| str1->yMax = str2->yMax; |
| } |
| str1->yxNext = str2->yxNext; |
| delete str2; |
| } else { // keep strings separate |
| // printf("no\n"); |
| bool finish_a = str1->getLink() != nullptr; |
| bool finish_bold = hfont1->isBold(); |
| bool finish_italic = hfont1->isItalic(); |
| CloseTags(str1->htext.get(), finish_a, finish_italic, finish_bold); |
| |
| str1->xMin = curX; |
| str1->yMin = curY; |
| str1 = str2; |
| curX = str1->xMin; |
| curY = str1->yMin; |
| hfont1 = hfont2; |
| if (hfont1->isBold()) { |
| str1->htext->insert(0, "<b>", 3); |
| } |
| if (hfont1->isItalic()) { |
| str1->htext->insert(0, "<i>", 3); |
| } |
| if (str1->getLink() != nullptr) { |
| const std::unique_ptr<GooString> ls = str1->getLink()->getLinkStart(); |
| str1->htext->insert(0, ls.get()); |
| } |
| } |
| } |
| str1->xMin = curX; |
| str1->yMin = curY; |
| |
| bool finish_bold = hfont1->isBold(); |
| bool finish_italic = hfont1->isItalic(); |
| bool finish_a = str1->getLink() != nullptr; |
| CloseTags(str1->htext.get(), finish_a, finish_italic, finish_bold); |
| |
| #if 0 //~ for debugging |
| for (str1 = yxStrings; str1; str1 = str1->yxNext) { |
| printf("x=%3d..%3d y=%3d..%3d size=%2d ", |
| (int)str1->xMin, (int)str1->xMax, (int)str1->yMin, (int)str1->yMax, |
| (int)(str1->yMax - str1->yMin)); |
| printf("'%s'\n", str1->htext->c_str()); |
| } |
| printf("\n------------------------------------------------------------\n\n"); |
| #endif |
| } |
| |
| void HtmlPage::dumpAsXML(FILE *f, int page) |
| { |
| fprintf(f, R"(<page number="%d" position="absolute")", page); |
| fprintf(f, " top=\"0\" left=\"0\" height=\"%d\" width=\"%d\">\n", pageHeight, pageWidth); |
| |
| for (int i = fontsPageMarker; i < fonts->size(); i++) { |
| GooString *fontCSStyle = fonts->CSStyle(i); |
| fprintf(f, "\t%s\n", fontCSStyle->c_str()); |
| delete fontCSStyle; |
| } |
| |
| for (auto ptr : imgList) { |
| auto img = static_cast<HtmlImage *>(ptr); |
| if (!noRoundedCoordinates) { |
| fprintf(f, R"(<image top="%d" left="%d" )", xoutRound(img->yMin), xoutRound(img->xMin)); |
| fprintf(f, R"(width="%d" height="%d" )", xoutRound(img->xMax - img->xMin), xoutRound(img->yMax - img->yMin)); |
| } else { |
| fprintf(f, R"(<image top="%f" left="%f" )", img->yMin, img->xMin); |
| fprintf(f, R"(width="%f" height="%f" )", img->xMax - img->xMin, img->yMax - img->yMin); |
| } |
| fprintf(f, "src=\"%s\"/>\n", img->fName.c_str()); |
| delete img; |
| } |
| imgList.clear(); |
| |
| for (HtmlString *tmp = yxStrings; tmp; tmp = tmp->yxNext) { |
| if (tmp->htext) { |
| if (!noRoundedCoordinates) { |
| fprintf(f, R"(<text top="%d" left="%d" )", xoutRound(tmp->yMin), xoutRound(tmp->xMin)); |
| fprintf(f, R"(width="%d" height="%d" )", xoutRound(tmp->xMax - tmp->xMin), xoutRound(tmp->yMax - tmp->yMin)); |
| } else { |
| fprintf(f, R"(<text top="%f" left="%f" )", tmp->yMin, tmp->xMin); |
| fprintf(f, R"(width="%f" height="%f" )", tmp->xMax - tmp->xMin, tmp->yMax - tmp->yMin); |
| } |
| fprintf(f, "font=\"%d\">", tmp->fontpos); |
| fputs(tmp->htext->c_str(), f); |
| fputs("</text>\n", f); |
| } |
| } |
| fputs("</page>\n", f); |
| } |
| |
| static void printCSS(FILE *f) |
| { |
| // Image flip/flop CSS |
| // Source: |
| // http://stackoverflow.com/questions/1309055/cross-browser-way-to-flip-html-image-via-javascript-css |
| // tested in Chrome, Fx (Linux) and IE9 (W7) |
| static const char css[] = "<style type=\"text/css\">" |
| "\n" |
| "<!--" |
| "\n" |
| ".xflip {" |
| "\n" |
| " -moz-transform: scaleX(-1);" |
| "\n" |
| " -webkit-transform: scaleX(-1);" |
| "\n" |
| " -o-transform: scaleX(-1);" |
| "\n" |
| " transform: scaleX(-1);" |
| "\n" |
| " filter: fliph;" |
| "\n" |
| "}" |
| "\n" |
| ".yflip {" |
| "\n" |
| " -moz-transform: scaleY(-1);" |
| "\n" |
| " -webkit-transform: scaleY(-1);" |
| "\n" |
| " -o-transform: scaleY(-1);" |
| "\n" |
| " transform: scaleY(-1);" |
| "\n" |
| " filter: flipv;" |
| "\n" |
| "}" |
| "\n" |
| ".xyflip {" |
| "\n" |
| " -moz-transform: scaleX(-1) scaleY(-1);" |
| "\n" |
| " -webkit-transform: scaleX(-1) scaleY(-1);" |
| "\n" |
| " -o-transform: scaleX(-1) scaleY(-1);" |
| "\n" |
| " transform: scaleX(-1) scaleY(-1);" |
| "\n" |
| " filter: fliph + flipv;" |
| "\n" |
| "}" |
| "\n" |
| "-->" |
| "\n" |
| "</style>" |
| "\n"; |
| |
| fwrite(css, sizeof(css) - 1, 1, f); |
| } |
| |
| int HtmlPage::dumpComplexHeaders(FILE *const file, FILE *&pageFile, int page) |
| { |
| |
| if (!noframes) { |
| const std::string pgNum = std::to_string(page); |
| std::string pageFileName(DocName->toStr()); |
| if (!singleHtml) { |
| pageFileName += '-' + pgNum + ".html"; |
| pageFile = fopen(pageFileName.c_str(), "w"); |
| } else { |
| pageFileName += "-html.html"; |
| pageFile = fopen(pageFileName.c_str(), "a"); |
| } |
| |
| if (!pageFile) { |
| error(errIO, -1, "Couldn't open html file '{0:s}'", pageFileName.c_str()); |
| return 1; |
| } |
| |
| if (!singleHtml) { |
| fprintf(pageFile, "%s\n<html xmlns=\"http://www.w3.org/1999/xhtml\" lang=\"\" xml:lang=\"\">\n<head>\n<title>Page %d</title>\n\n", DOCTYPE, page); |
| } else { |
| fprintf(pageFile, "%s\n<html xmlns=\"http://www.w3.org/1999/xhtml\" lang=\"\" xml:lang=\"\">\n<head>\n<title>%s</title>\n\n", DOCTYPE, pageFileName.c_str()); |
| } |
| |
| const std::string htmlEncoding = HtmlOutputDev::mapEncodingToHtml(globalParams->getTextEncodingName()); |
| if (!singleHtml) { |
| fprintf(pageFile, "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=%s\"/>\n", htmlEncoding.c_str()); |
| } else { |
| fprintf(pageFile, "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=%s\"/>\n <br/>\n", htmlEncoding.c_str()); |
| } |
| } else { |
| pageFile = file; |
| fprintf(pageFile, "<!-- Page %d -->\n", page); |
| fprintf(pageFile, "<a name=\"%d\"></a>\n", page); |
| } |
| |
| return 0; |
| } |
| |
| void HtmlPage::dumpComplex(FILE *file, int page, const std::vector<std::string> &backgroundImages) |
| { |
| FILE *pageFile; |
| |
| if (firstPage == -1) { |
| firstPage = page; |
| } |
| |
| if (dumpComplexHeaders(file, pageFile, page)) { |
| error(errIO, -1, "Couldn't write headers."); |
| return; |
| } |
| |
| fputs("<style type=\"text/css\">\n<!--\n", pageFile); |
| fputs("\tp {margin: 0; padding: 0;}", pageFile); |
| for (int i = fontsPageMarker; i != fonts->size(); i++) { |
| GooString *fontCSStyle; |
| if (!singleHtml) { |
| fontCSStyle = fonts->CSStyle(i); |
| } else { |
| fontCSStyle = fonts->CSStyle(i, page); |
| } |
| fprintf(pageFile, "\t%s\n", fontCSStyle->c_str()); |
| delete fontCSStyle; |
| } |
| |
| fputs("-->\n</style>\n", pageFile); |
| |
| if (!noframes) { |
| fputs("</head>\n<body bgcolor=\"#A0A0A0\" vlink=\"blue\" link=\"blue\">\n", pageFile); |
| } |
| |
| fprintf(pageFile, "<div id=\"page%d-div\" style=\"position:relative;width:%dpx;height:%dpx;\">\n", page, pageWidth, pageHeight); |
| |
| if (!ignore && (size_t)(page - firstPage) < backgroundImages.size()) { |
| fprintf(pageFile, "<img width=\"%d\" height=\"%d\" src=\"%s\" alt=\"background image\"/>\n", pageWidth, pageHeight, backgroundImages[page - firstPage].c_str()); |
| } |
| |
| for (HtmlString *tmp1 = yxStrings; tmp1; tmp1 = tmp1->yxNext) { |
| if (tmp1->htext) { |
| fprintf(pageFile, R"(<p style="position:absolute;top:%dpx;left:%dpx;white-space:nowrap" class="ft)", xoutRound(tmp1->yMin), xoutRound(tmp1->xMin)); |
| if (!singleHtml) { |
| fputc('0', pageFile); |
| } else { |
| fprintf(pageFile, "%d", page); |
| } |
| fprintf(pageFile, "%d\">", tmp1->fontpos); |
| fputs(tmp1->htext->c_str(), pageFile); |
| fputs("</p>\n", pageFile); |
| } |
| } |
| |
| fputs("</div>\n", pageFile); |
| |
| if (!noframes) { |
| fputs("</body>\n</html>\n", pageFile); |
| fclose(pageFile); |
| } |
| } |
| |
| void HtmlPage::dump(FILE *f, int pageNum, const std::vector<std::string> &backgroundImages) |
| { |
| if (complexMode || singleHtml) { |
| if (xml) { |
| dumpAsXML(f, pageNum); |
| } |
| if (!xml) { |
| dumpComplex(f, pageNum, backgroundImages); |
| } |
| } else { |
| fprintf(f, "<a name=%d></a>", pageNum); |
| // Loop over the list of image names on this page |
| for (auto ptr : imgList) { |
| auto img = static_cast<HtmlImage *>(ptr); |
| |
| // see printCSS() for class names |
| const char *styles[4] = { "", " class=\"xflip\"", " class=\"yflip\"", " class=\"xyflip\"" }; |
| int style_index = 0; |
| if (img->xMin > img->xMax) { |
| style_index += 1; // xFlip |
| } |
| if (img->yMin > img->yMax) { |
| style_index += 2; // yFlip |
| } |
| |
| fprintf(f, "<img%s src=\"%s\"/><br/>\n", styles[style_index], img->fName.c_str()); |
| delete img; |
| } |
| imgList.clear(); |
| |
| for (HtmlString *tmp = yxStrings; tmp; tmp = tmp->yxNext) { |
| if (tmp->htext) { |
| fputs(tmp->htext->c_str(), f); |
| fputs("<br/>\n", f); |
| } |
| } |
| fputs("<hr/>\n", f); |
| } |
| } |
| |
| void HtmlPage::clear() |
| { |
| HtmlString *p1, *p2; |
| |
| if (curStr) { |
| delete curStr; |
| curStr = nullptr; |
| } |
| for (p1 = yxStrings; p1; p1 = p2) { |
| p2 = p1->yxNext; |
| delete p1; |
| } |
| yxStrings = nullptr; |
| xyStrings = nullptr; |
| yxCur1 = yxCur2 = nullptr; |
| |
| if (!noframes) { |
| delete fonts; |
| fonts = new HtmlFontAccu(); |
| fontsPageMarker = 0; |
| } else { |
| fontsPageMarker = fonts->size(); |
| } |
| |
| delete links; |
| links = new HtmlLinks(); |
| } |
| |
| void HtmlPage::setDocName(const char *fname) |
| { |
| DocName = new GooString(fname); |
| } |
| |
| void HtmlPage::addImage(std::string &&fname, GfxState *state) |
| { |
| HtmlImage *img = new HtmlImage(std::move(fname), state); |
| imgList.push_back(img); |
| } |
| |
| //------------------------------------------------------------------------ |
| // HtmlMetaVar |
| //------------------------------------------------------------------------ |
| |
| HtmlMetaVar::HtmlMetaVar(const char *_name, const char *_content) |
| { |
| name = new GooString(_name); |
| content = new GooString(_content); |
| } |
| |
| HtmlMetaVar::~HtmlMetaVar() |
| { |
| delete name; |
| delete content; |
| } |
| |
| GooString *HtmlMetaVar::toString() const |
| { |
| GooString *result = new GooString("<meta name=\""); |
| result->append(name); |
| result->append("\" content=\""); |
| result->append(content); |
| result->append("\"/>"); |
| return result; |
| } |
| |
| //------------------------------------------------------------------------ |
| // HtmlOutputDev |
| //------------------------------------------------------------------------ |
| |
| static const char *HtmlEncodings[][2] = { { "Latin1", "ISO-8859-1" }, { nullptr, nullptr } }; |
| |
| std::string HtmlOutputDev::mapEncodingToHtml(const std::string &encoding) |
| { |
| for (int i = 0; HtmlEncodings[i][0] != nullptr; i++) { |
| if (encoding == HtmlEncodings[i][0]) { |
| return HtmlEncodings[i][1]; |
| } |
| } |
| return encoding; |
| } |
| |
| void HtmlOutputDev::doFrame(int firstPage) |
| { |
| GooString *fName = new GooString(Docname); |
| fName->append(".html"); |
| |
| if (!(fContentsFrame = fopen(fName->c_str(), "w"))) { |
| error(errIO, -1, "Couldn't open html file '{0:t}'", fName); |
| delete fName; |
| return; |
| } |
| |
| delete fName; |
| |
| const std::string baseName = gbasename(Docname->c_str()); |
| fputs(DOCTYPE, fContentsFrame); |
| fputs("\n<html>", fContentsFrame); |
| fputs("\n<head>", fContentsFrame); |
| fprintf(fContentsFrame, "\n<title>%s</title>", docTitle->c_str()); |
| const std::string htmlEncoding = mapEncodingToHtml(globalParams->getTextEncodingName()); |
| fprintf(fContentsFrame, "\n<meta http-equiv=\"Content-Type\" content=\"text/html; charset=%s\"/>\n", htmlEncoding.c_str()); |
| dumpMetaVars(fContentsFrame); |
| fprintf(fContentsFrame, "</head>\n"); |
| fputs("<frameset cols=\"100,*\">\n", fContentsFrame); |
| fprintf(fContentsFrame, "<frame name=\"links\" src=\"%s_ind.html\"/>\n", baseName.c_str()); |
| fputs("<frame name=\"contents\" src=", fContentsFrame); |
| if (complexMode) { |
| fprintf(fContentsFrame, "\"%s-%d.html\"", baseName.c_str(), firstPage); |
| } else { |
| fprintf(fContentsFrame, "\"%ss.html\"", baseName.c_str()); |
| } |
| |
| fputs("/>\n</frameset>\n</html>\n", fContentsFrame); |
| |
| fclose(fContentsFrame); |
| } |
| |
| HtmlOutputDev::HtmlOutputDev(Catalog *catalogA, const char *fileName, const char *title, const char *author, const char *keywords, const char *subject, const char *date, bool rawOrderA, int firstPage, bool outline) |
| { |
| catalog = catalogA; |
| fContentsFrame = nullptr; |
| page = nullptr; |
| docTitle = new GooString(title); |
| pages = nullptr; |
| dumpJPEG = true; |
| // write = true; |
| rawOrder = rawOrderA; |
| this->doOutline = outline; |
| ok = false; |
| // this->firstPage = firstPage; |
| // pageNum=firstPage; |
| // open file |
| needClose = false; |
| pages = new HtmlPage(rawOrder); |
| |
| glMetaVars.push_back(new HtmlMetaVar("generator", "pdftohtml 0.36")); |
| if (author) { |
| glMetaVars.push_back(new HtmlMetaVar("author", author)); |
| } |
| if (keywords) { |
| glMetaVars.push_back(new HtmlMetaVar("keywords", keywords)); |
| } |
| if (date) { |
| glMetaVars.push_back(new HtmlMetaVar("date", date)); |
| } |
| if (subject) { |
| glMetaVars.push_back(new HtmlMetaVar("subject", subject)); |
| } |
| |
| maxPageWidth = 0; |
| maxPageHeight = 0; |
| |
| pages->setDocName(fileName); |
| Docname = new GooString(fileName); |
| |
| // for non-xml output (complex or simple) with frames generate the left frame |
| if (!xml && !noframes) { |
| if (!singleHtml) { |
| GooString *left = new GooString(fileName); |
| left->append("_ind.html"); |
| |
| doFrame(firstPage); |
| |
| if (!(fContentsFrame = fopen(left->c_str(), "w"))) { |
| error(errIO, -1, "Couldn't open html file '{0:t}'", left); |
| delete left; |
| return; |
| } |
| delete left; |
| fputs(DOCTYPE, fContentsFrame); |
| fputs("<html xmlns=\"http://www.w3.org/1999/xhtml\" lang=\"\" xml:lang=\"\">\n<head>\n<title></title>\n</head>\n<body>\n", fContentsFrame); |
| |
| if (doOutline) { |
| fprintf(fContentsFrame, R"(<a href="%s%s" target=\"contents\">Outline</a><br/>)", gbasename(Docname->c_str()).c_str(), complexMode ? "-outline.html" : "s.html#outline"); |
| } |
| } |
| if (!complexMode) { /* not in complex mode */ |
| |
| GooString *right = new GooString(fileName); |
| right->append("s.html"); |
| |
| if (!(page = fopen(right->c_str(), "w"))) { |
| error(errIO, -1, "Couldn't open html file '{0:t}'", right); |
| delete right; |
| return; |
| } |
| delete right; |
| fputs(DOCTYPE, page); |
| fputs("<html>\n<head>\n<title></title>\n", page); |
| printCSS(page); |
| fputs("</head>\n<body>\n", page); |
| } |
| } |
| |
| if (noframes) { |
| if (stout) { |
| page = stdout; |
| } else { |
| GooString *right = new GooString(fileName); |
| if (!xml) { |
| right->append(".html"); |
| } |
| if (xml) { |
| right->append(".xml"); |
| } |
| if (!(page = fopen(right->c_str(), "w"))) { |
| error(errIO, -1, "Couldn't open html file '{0:t}'", right); |
| delete right; |
| return; |
| } |
| delete right; |
| } |
| |
| const std::string htmlEncoding = mapEncodingToHtml(globalParams->getTextEncodingName()); |
| if (xml) { |
| fprintf(page, "<?xml version=\"1.0\" encoding=\"%s\"?>\n", htmlEncoding.c_str()); |
| fputs("<!DOCTYPE pdf2xml SYSTEM \"pdf2xml.dtd\">\n\n", page); |
| fprintf(page, "<pdf2xml producer=\"%s\" version=\"%s\">\n", PACKAGE_NAME, PACKAGE_VERSION); |
| } else { |
| fprintf(page, "%s\n<html xmlns=\"http://www.w3.org/1999/xhtml\" lang=\"\" xml:lang=\"\">\n<head>\n<title>%s</title>\n", DOCTYPE, docTitle->c_str()); |
| |
| fprintf(page, "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=%s\"/>\n", htmlEncoding.c_str()); |
| |
| dumpMetaVars(page); |
| printCSS(page); |
| fprintf(page, "</head>\n"); |
| fprintf(page, "<body bgcolor=\"#A0A0A0\" vlink=\"blue\" link=\"blue\">\n"); |
| } |
| } |
| ok = true; |
| } |
| |
| HtmlOutputDev::~HtmlOutputDev() |
| { |
| delete Docname; |
| delete docTitle; |
| |
| for (auto entry : glMetaVars) { |
| delete entry; |
| } |
| |
| if (fContentsFrame) { |
| fputs("</body>\n</html>\n", fContentsFrame); |
| fclose(fContentsFrame); |
| } |
| if (page != nullptr) { |
| if (xml) { |
| fputs("</pdf2xml>\n", page); |
| fclose(page); |
| } else if (!complexMode || xml || noframes) { |
| fputs("</body>\n</html>\n", page); |
| fclose(page); |
| } |
| } |
| delete pages; |
| } |
| |
| void HtmlOutputDev::startPage(int pageNumA, GfxState *state, XRef *xref) |
| { |
| #if 0 |
| if (mode&&!xml){ |
| if (write){ |
| write=false; |
| GooString* fname=Dirname(Docname); |
| fname->append("image.log"); |
| if((tin=fopen(getFileNameFromPath(fname->c_str(),fname->getLength()),"w"))==NULL){ |
| printf("Error : can not open %s",fname); |
| exit(1); |
| } |
| delete fname; |
| // if(state->getRotation()!=0) |
| // fprintf(tin,"ROTATE=%d rotate %d neg %d neg translate\n",state->getRotation(),state->getX1(),-state->getY1()); |
| // else |
| fprintf(tin,"ROTATE=%d neg %d neg translate\n",state->getX1(),state->getY1()); |
| } |
| } |
| #endif |
| |
| pageNum = pageNumA; |
| const std::string str = gbasename(Docname->c_str()); |
| pages->clear(); |
| if (!noframes) { |
| if (fContentsFrame) { |
| if (complexMode) { |
| fprintf(fContentsFrame, "<a href=\"%s-%d.html\"", str.c_str(), pageNum); |
| } else { |
| fprintf(fContentsFrame, "<a href=\"%ss.html#%d\"", str.c_str(), pageNum); |
| } |
| fprintf(fContentsFrame, " target=\"contents\" >Page %d</a><br/>\n", pageNum); |
| } |
| } |
| |
| pages->pageWidth = static_cast<int>(state->getPageWidth()); |
| pages->pageHeight = static_cast<int>(state->getPageHeight()); |
| } |
| |
| void HtmlOutputDev::endPage() |
| { |
| std::unique_ptr<Links> linksList = docPage->getLinks(); |
| for (AnnotLink *link : linksList->getLinks()) { |
| doProcessLink(link); |
| } |
| |
| pages->conv(); |
| pages->coalesce(); |
| pages->dump(page, pageNum, backgroundImages); |
| |
| // I don't yet know what to do in the case when there are pages of different |
| // sizes and we want complex output: running ghostscript many times |
| // seems very inefficient. So for now I'll just use last page's size |
| maxPageWidth = pages->pageWidth; |
| maxPageHeight = pages->pageHeight; |
| |
| // if(!noframes&&!xml) fputs("<br/>\n", fContentsFrame); |
| if (!stout && !globalParams->getErrQuiet()) { |
| printf("Page-%d\n", (pageNum)); |
| } |
| } |
| |
| void HtmlOutputDev::addBackgroundImage(const std::string &img) |
| { |
| backgroundImages.push_back(img); |
| } |
| |
| void HtmlOutputDev::updateFont(GfxState *state) |
| { |
| pages->updateFont(state); |
| } |
| |
| void HtmlOutputDev::beginString(GfxState *state, const GooString *s) |
| { |
| pages->beginString(state, s); |
| } |
| |
| void HtmlOutputDev::endString(GfxState *state) |
| { |
| pages->endString(); |
| } |
| |
| void HtmlOutputDev::drawChar(GfxState *state, double x, double y, double dx, double dy, double originX, double originY, CharCode code, int /*nBytes*/, const Unicode *u, int uLen) |
| { |
| if (!showHidden && (state->getRender() & 3) == 3) { |
| return; |
| } |
| pages->addChar(state, x, y, dx, dy, originX, originY, u, uLen); |
| } |
| |
| void HtmlOutputDev::drawJpegImage(GfxState *state, Stream *str) |
| { |
| InMemoryFile ims; |
| FILE *f1 = nullptr; |
| int c; |
| |
| // open the image file |
| std::string fName = createImageFileName("jpg"); |
| f1 = dataUrls ? ims.open("wb") : fopen(fName.c_str(), "wb"); |
| if (!f1) { |
| error(errIO, -1, "Couldn't open image file '{0:s}'", fName.c_str()); |
| return; |
| } |
| |
| // initialize stream |
| str = str->getNextStream(); |
| str->reset(); |
| |
| // copy the stream |
| while ((c = str->getChar()) != EOF) { |
| fputc(c, f1); |
| } |
| |
| fclose(f1); |
| |
| if (dataUrls) { |
| fName = std::string("data:image/jpeg;base64,") + gbase64Encode(ims.getBuffer()); |
| } |
| pages->addImage(std::move(fName), state); |
| } |
| |
| void HtmlOutputDev::drawPngImage(GfxState *state, Stream *str, int width, int height, GfxImageColorMap *colorMap, bool isMask) |
| { |
| #ifdef ENABLE_LIBPNG |
| FILE *f1; |
| InMemoryFile ims; |
| |
| if (!colorMap && !isMask) { |
| error(errInternal, -1, "Can't have color image without a color map"); |
| return; |
| } |
| |
| // open the image file |
| std::string fName = createImageFileName("png"); |
| f1 = dataUrls ? ims.open("wb") : fopen(fName.c_str(), "wb"); |
| if (!f1) { |
| error(errIO, -1, "Couldn't open image file '{0:s}'", fName.c_str()); |
| return; |
| } |
| |
| PNGWriter *writer = new PNGWriter(isMask ? PNGWriter::MONOCHROME : PNGWriter::RGB); |
| // TODO can we calculate the resolution of the image? |
| if (!writer->init(f1, width, height, 72, 72)) { |
| error(errInternal, -1, "Can't init PNG for image '{0:s}'", fName.c_str()); |
| delete writer; |
| fclose(f1); |
| return; |
| } |
| |
| if (!isMask) { |
| unsigned char *p; |
| GfxRGB rgb; |
| unsigned char *row = (unsigned char *)gmalloc(3 * width); // 3 bytes/pixel: RGB |
| unsigned char **row_pointer = &row; |
| |
| // Initialize the image stream |
| ImageStream *imgStr = new ImageStream(str, width, colorMap->getNumPixelComps(), colorMap->getBits()); |
| imgStr->reset(); |
| |
| // For each line... |
| for (int y = 0; y < height; y++) { |
| |
| // Convert into a PNG row |
| p = imgStr->getLine(); |
| if (!p) { |
| error(errIO, -1, "Failed to read PNG. '{0:s}' will be incorrect", fName.c_str()); |
| gfree(row); |
| delete writer; |
| delete imgStr; |
| fclose(f1); |
| return; |
| } |
| for (int x = 0; x < width; x++) { |
| colorMap->getRGB(p, &rgb); |
| // Write the RGB pixels into the row |
| row[3 * x] = colToByte(rgb.r); |
| row[3 * x + 1] = colToByte(rgb.g); |
| row[3 * x + 2] = colToByte(rgb.b); |
| p += colorMap->getNumPixelComps(); |
| } |
| |
| if (!writer->writeRow(row_pointer)) { |
| error(errIO, -1, "Failed to write into PNG '{0:s}'", fName.c_str()); |
| delete writer; |
| delete imgStr; |
| fclose(f1); |
| return; |
| } |
| } |
| gfree(row); |
| imgStr->close(); |
| delete imgStr; |
| } else { // isMask == true |
| int size = (width + 7) / 8; |
| |
| // PDF masks use 0 = draw current color, 1 = leave unchanged. |
| // We invert this to provide the standard interpretation of alpha |
| // (0 = transparent, 1 = opaque). If the colorMap already inverts |
| // the mask we leave the data unchanged. |
| int invert_bits = 0xff; |
| if (colorMap) { |
| GfxGray gray; |
| unsigned char zero[gfxColorMaxComps]; |
| memset(zero, 0, sizeof(zero)); |
| colorMap->getGray(zero, &gray); |
| if (colToByte(gray) == 0) { |
| invert_bits = 0x00; |
| } |
| } |
| |
| str->reset(); |
| unsigned char *png_row = (unsigned char *)gmalloc(size); |
| |
| for (int ri = 0; ri < height; ++ri) { |
| for (int i = 0; i < size; i++) { |
| png_row[i] = str->getChar() ^ invert_bits; |
| } |
| |
| if (!writer->writeRow(&png_row)) { |
| error(errIO, -1, "Failed to write into PNG '{0:s}'", fName.c_str()); |
| delete writer; |
| fclose(f1); |
| gfree(png_row); |
| return; |
| } |
| } |
| str->close(); |
| gfree(png_row); |
| } |
| |
| str->close(); |
| |
| writer->close(); |
| delete writer; |
| fclose(f1); |
| |
| if (dataUrls) { |
| fName = std::string("data:image/png;base64,") + gbase64Encode(ims.getBuffer()); |
| } |
| pages->addImage(std::move(fName), state); |
| #else |
| return; |
| #endif |
| } |
| |
| std::string HtmlOutputDev::createImageFileName(const char *ext) |
| { |
| return GooString::format("{0:s}-{1:d}_{2:d}.{3:s}", Docname->c_str(), pageNum, pages->getNumImages() + 1, ext); |
| } |
| |
| void HtmlOutputDev::drawImageMask(GfxState *state, Object *ref, Stream *str, int width, int height, bool invert, bool interpolate, bool inlineImg) |
| { |
| |
| if (ignore || (complexMode && !xml)) { |
| OutputDev::drawImageMask(state, ref, str, width, height, invert, interpolate, inlineImg); |
| return; |
| } |
| |
| // dump JPEG file |
| if (dumpJPEG && str->getKind() == strDCT) { |
| drawJpegImage(state, str); |
| } else { |
| #ifdef ENABLE_LIBPNG |
| drawPngImage(state, str, width, height, nullptr, true); |
| #else |
| OutputDev::drawImageMask(state, ref, str, width, height, invert, interpolate, inlineImg); |
| #endif |
| } |
| } |
| |
| void HtmlOutputDev::drawImage(GfxState *state, Object *ref, Stream *str, int width, int height, GfxImageColorMap *colorMap, bool interpolate, const int *maskColors, bool inlineImg) |
| { |
| |
| if (ignore || (complexMode && !xml)) { |
| OutputDev::drawImage(state, ref, str, width, height, colorMap, interpolate, maskColors, inlineImg); |
| return; |
| } |
| |
| /*if( !globalParams->getErrQuiet() ) |
| printf("image stream of kind %d\n", str->getKind());*/ |
| // dump JPEG file |
| if (dumpJPEG && str->getKind() == strDCT && (colorMap->getNumPixelComps() == 1 || colorMap->getNumPixelComps() == 3) && !inlineImg) { |
| drawJpegImage(state, str); |
| } else { |
| #ifdef ENABLE_LIBPNG |
| drawPngImage(state, str, width, height, colorMap); |
| #else |
| OutputDev::drawImage(state, ref, str, width, height, colorMap, interpolate, maskColors, inlineImg); |
| #endif |
| } |
| } |
| |
| void HtmlOutputDev::doProcessLink(AnnotLink *link) |
| { |
| double _x1, _y1, _x2, _y2; |
| int x1, y1, x2, y2; |
| |
| link->getRect(&_x1, &_y1, &_x2, &_y2); |
| cvtUserToDev(_x1, _y1, &x1, &y1); |
| |
| cvtUserToDev(_x2, _y2, &x2, &y2); |
| |
| std::unique_ptr<GooString> _dest = getLinkDest(link); |
| HtmlLink t((double)x1, (double)y2, (double)x2, (double)y1, std::move(_dest)); |
| pages->AddLink(t); |
| } |
| |
| std::unique_ptr<GooString> HtmlOutputDev::getLinkDest(AnnotLink *link) |
| { |
| if (!link->getAction()) { |
| return std::make_unique<GooString>(); |
| } |
| switch (link->getAction()->getKind()) { |
| case actionGoTo: { |
| int destPage = 1; |
| LinkGoTo *ha = (LinkGoTo *)link->getAction(); |
| std::unique_ptr<LinkDest> dest; |
| if (ha->getDest() != nullptr) { |
| dest = std::make_unique<LinkDest>(*ha->getDest()); |
| } else if (ha->getNamedDest() != nullptr) { |
| dest = catalog->findDest(ha->getNamedDest()); |
| } |
| |
| if (dest) { |
| std::unique_ptr<GooString> file = std::make_unique<GooString>(gbasename(Docname->c_str())); |
| |
| if (dest->isPageRef()) { |
| const Ref pageref = dest->getPageRef(); |
| destPage = catalog->findPage(pageref); |
| } else { |
| destPage = dest->getPageNum(); |
| } |
| |
| /* complex simple |
| frames file-4.html files.html#4 |
| noframes file.html#4 file.html#4 |
| */ |
| if (noframes) { |
| file->append(".html#"); |
| file->append(std::to_string(destPage)); |
| } else { |
| if (complexMode) { |
| file->append("-"); |
| file->append(std::to_string(destPage)); |
| file->append(".html"); |
| } else { |
| file->append("s.html#"); |
| file->append(std::to_string(destPage)); |
| } |
| } |
| |
| if (printCommands) { |
| printf(" link to page %d ", destPage); |
| } |
| return file; |
| } else { |
| return std::make_unique<GooString>(); |
| } |
| } |
| case actionGoToR: { |
| LinkGoToR *ha = (LinkGoToR *)link->getAction(); |
| LinkDest *dest = nullptr; |
| int destPage = 1; |
| std::unique_ptr<GooString> file = std::make_unique<GooString>(); |
| if (ha->getFileName()) { |
| file = std::make_unique<GooString>(ha->getFileName()->c_str()); |
| } |
| if (ha->getDest() != nullptr) { |
| dest = new LinkDest(*ha->getDest()); |
| } |
| if (dest && file) { |
| if (!(dest->isPageRef())) { |
| destPage = dest->getPageNum(); |
| } |
| delete dest; |
| |
| if (printCommands) { |
| printf(" link to page %d ", destPage); |
| } |
| if (printHtml) { |
| const char *p = file->c_str() + file->getLength() - 4; |
| if (!strcmp(p, ".pdf") || !strcmp(p, ".PDF")) { |
| file->del(file->getLength() - 4, 4); |
| file->append(".html"); |
| } |
| file->append('#'); |
| file->append(std::to_string(destPage)); |
| } |
| } |
| if (printCommands && file) { |
| printf("filename %s\n", file->c_str()); |
| } |
| return file; |
| } |
| case actionURI: { |
| LinkURI *ha = (LinkURI *)link->getAction(); |
| // printf("uri : %s\n",ha->getURI()->c_str()); |
| return std::make_unique<GooString>(ha->getURI()); |
| } |
| case actionLaunch: |
| if (printHtml) { |
| LinkLaunch *ha = (LinkLaunch *)link->getAction(); |
| std::unique_ptr<GooString> file = std::make_unique<GooString>(ha->getFileName()->c_str()); |
| const char *p = file->c_str() + file->getLength() - 4; |
| if (!strcmp(p, ".pdf") || !strcmp(p, ".PDF")) { |
| file->del(file->getLength() - 4, 4); |
| file->append(".html"); |
| } |
| if (printCommands) { |
| printf("filename %s", file->c_str()); |
| } |
| |
| return file; |
| } |
| // fallthrough |
| default: |
| return std::make_unique<GooString>(); |
| } |
| } |
| |
| void HtmlOutputDev::dumpMetaVars(FILE *file) |
| { |
| GooString *var; |
| |
| for (const HtmlMetaVar *t : glMetaVars) { |
| var = t->toString(); |
| fprintf(file, "%s\n", var->c_str()); |
| delete var; |
| } |
| } |
| |
| bool HtmlOutputDev::dumpDocOutline(PDFDoc *doc) |
| { |
| FILE *output = nullptr; |
| bool bClose = false; |
| |
| if (!ok) { |
| return false; |
| } |
| |
| Outline *outline = doc->getOutline(); |
| if (!outline) { |
| return false; |
| } |
| |
| const std::vector<OutlineItem *> *outlines = outline->getItems(); |
| if (!outlines) { |
| return false; |
| } |
| |
| if (!complexMode || xml) { |
| output = page; |
| } else if (complexMode && !xml) { |
| if (noframes) { |
| output = page; |
| fputs("<hr/>\n", output); |
| } else { |
| std::unique_ptr<GooString> str = Docname->copy(); |
| str->append("-outline.html"); |
| output = fopen(str->c_str(), "w"); |
| if (output == nullptr) { |
| return false; |
| } |
| bClose = true; |
| |
| const std::string htmlEncoding = HtmlOutputDev::mapEncodingToHtml(globalParams->getTextEncodingName()); |
| |
| fprintf(output, |
| "<html xmlns=\"http://www.w3.org/1999/xhtml\" " |
| "lang=\"\" xml:lang=\"\">\n" |
| "<head>\n" |
| "<title>Document Outline</title>\n" |
| "<meta http-equiv=\"Content-Type\" content=\"text/html; " |
| "charset=%s\"/>\n" |
| "</head>\n<body>\n", |
| htmlEncoding.c_str()); |
| } |
| } |
| |
| if (!xml) { |
| bool done = newHtmlOutlineLevel(output, outlines); |
| if (done && !complexMode) { |
| fputs("<hr/>\n", output); |
| } |
| |
| if (bClose) { |
| fputs("</body>\n</html>\n", output); |
| fclose(output); |
| } |
| } else { |
| newXmlOutlineLevel(output, outlines); |
| } |
| |
| return true; |
| } |
| |
| bool HtmlOutputDev::newHtmlOutlineLevel(FILE *output, const std::vector<OutlineItem *> *outlines, int level) |
| { |
| bool atLeastOne = false; |
| |
| if (level == 1) { |
| fputs("<a name=\"outline\"></a>", output); |
| fputs("<h1>Document Outline</h1>\n", output); |
| } |
| fputs("<ul>\n", output); |
| |
| for (OutlineItem *item : *outlines) { |
| const auto &title = item->getTitle(); |
| std::unique_ptr<GooString> titleStr = HtmlFont::HtmlFilter(title.data(), title.size()); |
| |
| GooString *linkName = nullptr; |
| |
| const int itemPage = getOutlinePageNum(item); |
| if (itemPage > 0) { |
| /* complex simple |
| frames file-4.html files.html#4 |
| noframes file.html#4 file.html#4 |
| */ |
| linkName = new GooString(gbasename(Docname->c_str())); |
| if (noframes) { |
| linkName->append(".html#"); |
| linkName->append(std::to_string(itemPage)); |
| } else { |
| if (complexMode) { |
| linkName->append("-"); |
| linkName->append(std::to_string(itemPage)); |
| linkName->append(".html"); |
| } else { |
| linkName->append("s.html#"); |
| linkName->append(std::to_string(itemPage)); |
| } |
| } |
| } |
| |
| fputs("<li>", output); |
| if (linkName) { |
| fprintf(output, "<a href=\"%s\">", linkName->c_str()); |
| } |
| if (titleStr) { |
| fputs(titleStr->c_str(), output); |
| } |
| if (linkName) { |
| fputs("</a>", output); |
| delete linkName; |
| } |
| atLeastOne = true; |
| |
| item->open(); |
| if (item->hasKids() && item->getKids()) { |
| fputs("\n", output); |
| newHtmlOutlineLevel(output, item->getKids(), level + 1); |
| } |
| fputs("</li>\n", output); |
| } |
| fputs("</ul>\n", output); |
| |
| return atLeastOne; |
| } |
| |
| void HtmlOutputDev::newXmlOutlineLevel(FILE *output, const std::vector<OutlineItem *> *outlines) |
| { |
| fputs("<outline>\n", output); |
| |
| for (OutlineItem *item : *outlines) { |
| const std::vector<Unicode> &title = item->getTitle(); |
| auto titleStr = HtmlFont::HtmlFilter(title.data(), title.size()); |
| const int itemPage = getOutlinePageNum(item); |
| if (itemPage > 0) { |
| fprintf(output, "<item page=\"%d\">%s</item>\n", itemPage, titleStr->c_str()); |
| } else { |
| fprintf(output, "<item>%s</item>\n", titleStr->c_str()); |
| } |
| |
| item->open(); |
| if (item->hasKids() && item->getKids()) { |
| newXmlOutlineLevel(output, item->getKids()); |
| } |
| } |
| |
| fputs("</outline>\n", output); |
| } |
| |
| int HtmlOutputDev::getOutlinePageNum(OutlineItem *item) |
| { |
| const LinkAction *action = item->getAction(); |
| const LinkGoTo *link = nullptr; |
| std::unique_ptr<LinkDest> linkdest; |
| int pagenum = -1; |
| |
| if (!action || action->getKind() != actionGoTo) { |
| return pagenum; |
| } |
| |
| link = static_cast<const LinkGoTo *>(action); |
| |
| if (!link || !link->isOk()) { |
| return pagenum; |
| } |
| |
| if (link->getDest()) { |
| linkdest = std::make_unique<LinkDest>(*link->getDest()); |
| } else if (link->getNamedDest()) { |
| linkdest = catalog->findDest(link->getNamedDest()); |
| } |
| |
| if (!linkdest) { |
| return pagenum; |
| } |
| |
| if (linkdest->isPageRef()) { |
| const Ref pageref = linkdest->getPageRef(); |
| pagenum = catalog->findPage(pageref); |
| } else { |
| pagenum = linkdest->getPageNum(); |
| } |
| |
| return pagenum; |
| } |
