diff options
Diffstat (limited to 'Build/source/texk/dvisvgm/dvisvgm-1.0.10/src/dvisvgm.cpp')
-rw-r--r-- | Build/source/texk/dvisvgm/dvisvgm-1.0.10/src/dvisvgm.cpp | 385 |
1 files changed, 385 insertions, 0 deletions
diff --git a/Build/source/texk/dvisvgm/dvisvgm-1.0.10/src/dvisvgm.cpp b/Build/source/texk/dvisvgm/dvisvgm-1.0.10/src/dvisvgm.cpp new file mode 100644 index 00000000000..02b9cb1457c --- /dev/null +++ b/Build/source/texk/dvisvgm/dvisvgm-1.0.10/src/dvisvgm.cpp @@ -0,0 +1,385 @@ +/************************************************************************* +** dvisvgm.cpp ** +** ** +** This file is part of dvisvgm -- the DVI to SVG converter ** +** Copyright (C) 2005-2011 Martin Gieseking <martin.gieseking@uos.de> ** +** ** +** This program is free software; you can redistribute it and/or ** +** modify it under the terms of the GNU General Public License as ** +** published by the Free Software Foundation; either version 3 of ** +** the License, or (at your option) any later version. ** +** ** +** This program is distributed in the hope that it will be useful, but ** +** WITHOUT ANY WARRANTY; without even the implied warranty of ** +** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ** +** GNU General Public License for more details. ** +** ** +** You should have received a copy of the GNU General Public License ** +** along with this program; if not, see <http://www.gnu.org/licenses/>. ** +*************************************************************************/ + +#include <cmath> +#include <fstream> +#include <iomanip> +#include <iostream> +#include <sstream> +#include <string> +#include "gzstream.h" +#include "CommandLine.h" +#include "DVIToSVG.h" +#include "DVIToSVGActions.h" +#include "FilePath.h" +#include "FileSystem.h" +#include "Font.h" +#include "FontCache.h" +#include "FontEngine.h" +#include "Ghostscript.h" +#include "InputReader.h" +#include "Message.h" +#include "FileFinder.h" +#include "PageSize.h" +#include "SignalHandler.h" +#include "SpecialManager.h" +#include "System.h" + +#ifdef HAVE_CONFIG_H +#include "config.h" +#else +#define TARGET_SYSTEM "" +#endif + +#ifdef __MSVC__ +#include <potracelib.h> +#else +extern "C" { +#include <potracelib.h> +} +#endif + +using namespace std; + +class SVGOutput : public DVIToSVG::Output +{ + public: + SVGOutput (const char *base=0, string pattern="", int zip_level=0) + : _path(base ? base : ""), + _pattern(pattern), + _stdout(base == 0), + _zipLevel(zip_level), + _page(-1), + _os(0) {} + + + ~SVGOutput () { + delete _os; + } + + + /** Returns an output stream for the given page. + * @param[in] page number of current page + * @param[in] numPages total number of pages in the DVI file + * @return output stream for the given page */ + ostream& getPageStream (int page, int numPages) const { + string fname = filename(page, numPages); + if (fname.empty()) { + delete _os; + _os = 0; + return cout; + } + if (page == _page) + return *_os; + + _page = page; + delete _os; + + if (_zipLevel > 0) + _os = new ogzstream(fname.c_str(), _zipLevel); + else + _os = new ofstream(fname.c_str()); + if (!_os || !*_os) { + delete _os; + _os = 0; + throw MessageException("can't open file "+fname+" for writing"); + } + return *_os; + } + + + /** Returns the name of the SVG file containing the given page. + * @param[in] page number of page */ + string filename (int page, int numPages) const { + if (_stdout) + return ""; + string fname = _pattern; + if (fname.empty()) + fname = numPages > 1 ? "%f-%p" : "%f"; + else if (numPages > 1 && fname.find("%p") == string::npos) + fname += FileSystem::isDirectory(fname.c_str()) ? "/%f-%p" : "-%p"; + + // replace pattern variables by their actual values + // %f: basename of the DVI file + // %p: current page number + ostringstream oss; + oss << setfill('0') << setw(max(2, int(1+log10((double)numPages)))) << page; + size_t pos=0; + while ((pos = fname.find('%', pos)) != string::npos && pos < fname.length()-1) { + switch (fname[pos+1]) { + case 'f': fname.replace(pos, 2, _path.basename()); pos += _path.basename().length(); break; + case 'p': fname.replace(pos, 2, oss.str()); pos += oss.str().length(); break; + default : ++pos; + } + } + FilePath outpath(fname, true); + if (outpath.suffix().empty()) + outpath.suffix(_zipLevel > 0 ? "svgz" : "svg"); + string apath = outpath.absolute(); + string rpath = outpath.relative(); + return apath.length() < rpath.length() ? apath : rpath; + } + + private: + FilePath _path; + string _pattern; + bool _stdout; + int _zipLevel; + mutable int _page; // number of current page being written + mutable ostream *_os; +}; + + +static void show_help (const CommandLine &cmd) { + cout << PACKAGE_STRING "\n\n"; + cmd.help(); + cout << "\nCopyright (C) 2005-2011 Martin Gieseking <martin.gieseking@uos.de> \n\n"; +} + + +static string remove_path (string fname) { + fname = FileSystem::adaptPathSeperators(fname); + size_t slashpos = fname.rfind('/'); + if (slashpos == string::npos) + return fname; + return fname.substr(slashpos+1); +} + + +static string ensure_suffix (string fname, const string &suffix) { + size_t dotpos = remove_path(fname).rfind('.'); + if (dotpos == string::npos) { + dotpos = fname.length(); + fname += "."+suffix; + } + return fname; +} + + +static void set_trans (DVIToSVG &dvisvg, const CommandLine &args) { + ostringstream oss; + if (args.rotate_given()) + oss << 'R' << args.rotate_arg() << ",w/2,h/2"; + if (args.translate_given()) + oss << 'T' << args.translate_arg(); + if (args.scale_given()) + oss << 'S' << args.scale_arg(); + if (args.transform_given()) + oss << args.transform_arg(); + dvisvg.setTransformation(oss.str()); +} + + +static void set_libgs (CommandLine &args) { +#if !defined(DISABLE_GS) && !defined(HAVE_LIBGS) + if (args.libgs_given()) + Ghostscript::LIBGS_NAME = args.libgs_arg(); + else if (getenv("LIBGS")) + Ghostscript::LIBGS_NAME = getenv("LIBGS"); +#endif +} + + +static bool set_cache_dir (const CommandLine &args) { + if (args.cache_given() && !args.cache_arg().empty()) { + if (args.cache_arg() == "none") + PhysicalFont::CACHE_PATH = 0; + else if (FileSystem::exists(args.cache_arg().c_str())) + PhysicalFont::CACHE_PATH = args.cache_arg().c_str(); + else + Message::wstream(true) << "cache directory '" << args.cache_arg() << "' does not exist (caching disabled)\n"; + } + else { + if (const char *userdir = FileSystem::userdir()) { + static string path = userdir; + path += "/.dvisvgm"; + path = FileSystem::adaptPathSeperators(path); + const string cachepath = path+"/cache"; + if (!FileSystem::exists(cachepath.c_str())) { + if (!FileSystem::exists(path.c_str())) + FileSystem::mkdir(cachepath.c_str()); + else { + FileSystem::mkdir(cachepath.c_str()); + // move existing cache files from former location to new one + vector<string> files; + FileSystem::collect(path.c_str(), files); + FORALL(files, vector<string>::iterator, it) { + if (it->at(0) == 'f' && it->length() > 4 && it->substr(it->length()-4, 4) == ".fgd") { + const char *fname = it->c_str()+1; + FileSystem::copy(path+"/"+fname, cachepath+"/"+fname, true); + } + } + } + } + path = cachepath; + PhysicalFont::CACHE_PATH = path.c_str(); + } + if (args.cache_given() && args.cache_arg().empty()) { + cout << "cache directory: " << (PhysicalFont::CACHE_PATH ? PhysicalFont::CACHE_PATH : "(none)") << '\n'; + FontCache::fontinfo(PhysicalFont::CACHE_PATH, cout, true); + return false; + } + } + return true; +} + + +static bool check_bbox (const string &bboxstr) { + const char *formats[] = {"none", "min", "dvi", 0}; + for (const char **p=formats; *p; ++p) + if (bboxstr == *p) + return true; + if (isalpha(bboxstr[0])) { + try { + PageSize size(bboxstr); + return true; + } + catch (const PageSizeException &e) { + Message::estream(true) << "invalid bounding box format '" << bboxstr << "'\n"; + return false; + } + } + try { + BoundingBox bbox; + bbox.set(bboxstr); + return true; + } + catch (const MessageException &e) { + Message::estream(true) << e.what() << '\n'; + return false; + } +} + + +static void print_version (bool extended) { + ostringstream oss; + oss << PACKAGE_STRING; + if (extended) { + oss << " (" TARGET_SYSTEM ")\n"; + oss << string(oss.str().length()-1, '-') << "\n" + "freetype: " << FontEngine::version() << "\n" +#ifdef MIKTEX + "MiKTeX: " << FileFinder::version() << "\n" +#else + "kpathsea: " << FileFinder::version() << "\n" +#endif + "potrace: " << (strchr(potrace_version(), ' ') ? strchr(potrace_version(), ' ')+1 : "unknown") << "\n" + "zlib: " << zlibVersion(); + } + cout << oss.str() << endl; +} + + +int main (int argc, char *argv[]) { + CommandLine args; + args.parse(argc, argv); + if (args.error()) + return 1; + + Message::COLORIZE = args.color_given(); + + set_libgs(args); + if (args.version_given()) { + print_version(args.version_arg()); + return 0; + } + if (args.list_specials_given()) { + SVGOutput out; + DVIToSVG dvisvg(cin, out); + if (const SpecialManager *sm = dvisvg.setProcessSpecials()) + sm->writeHandlerInfo(cout); + return 0; + } + + if (!set_cache_dir(args)) + return 0; + + if (argc == 1 || args.help_given()) { + show_help(args); + return 0; + } + + if (argc > 1 && args.numFiles() < 1) { + Message::estream(true) << "no input file given\n"; + return 1; + } + + if (args.stdout_given() && args.zip_given()) { + Message::estream(true) << "writing SVGZ files to stdout is not supported\n"; + return 1; + } + + if (!check_bbox(args.bbox_arg())) + return 1; + + if (args.progress_given()) { + DVIReader::COMPUTE_PAGE_LENGTH = args.progress_given(); + DVIToSVGActions::PROGRESSBAR_DELAY = args.progress_arg(); + } + SVGTree::CREATE_STYLE = !args.no_styles_given(); + SVGTree::USE_FONTS = !args.no_fonts_given(); + SVGTree::CREATE_USE_ELEMENTS = args.no_fonts_arg() < 1; + DVIToSVGActions::EXACT_BBOX = args.exact_given(); + DVIToSVG::TRACE_MODE = args.trace_all_given() ? (args.trace_all_arg() ? 'a' : 'm') : 0; + PhysicalFont::KEEP_TEMP_FILES = args.keep_given(); + PhysicalFont::METAFONT_MAG = args.mag_arg(); + + double start_time = System::time(); + string dvifile = ensure_suffix(args.file(0), "dvi"); + ifstream ifs(dvifile.c_str(), ios_base::binary|ios_base::in); + if (!ifs) + Message::estream(true) << "can't open file '" << dvifile << "' for reading\n"; + else { + SVGOutput out(args.stdout_given() ? 0 : dvifile.c_str(), args.output_arg(), args.zip_given() ? args.zip_arg() : 0); + Message::LEVEL = args.verbosity_arg(); + DVIToSVG dvisvg(ifs, out); + const char *ignore_specials = args.no_specials_given() ? (args.no_specials_arg().empty() ? "*" : args.no_specials_arg().c_str()) : 0; + dvisvg.setProcessSpecials(ignore_specials); + set_trans(dvisvg, args); + dvisvg.setPageSize(args.bbox_arg()); + + try { + const char *usermap = args.map_file_given() ? args.map_file_arg().c_str() : 0; + FileFinder::init(argv[0], !args.no_mktexmf_given(), usermap); + pair<int,int> pageinfo; + SignalHandler::instance().start(); + dvisvg.convert(args.page_arg(), &pageinfo); + Message::mstream().indent(0); + Message::mstream(false, Message::MC_PAGE_NUMBER) << "\n" << pageinfo.first << " of " << pageinfo.second << " page"; + if (pageinfo.second > 1) + Message::mstream(false, Message::MC_PAGE_NUMBER) << 's'; + Message::mstream(false, Message::MC_PAGE_NUMBER) << " converted in " << (System::time()-start_time) << " seconds"; + Message::mstream(false) << "\n"; + + } + catch (DVIException &e) { + Message::estream() << "\nDVI error: " << e.what() << '\n'; + } + catch (SignalException &e) { + Message::wstream(true) << "execution interrupted by user\n"; + } + catch (MessageException &e) { + Message::estream(true) << e.what() << '\n'; + } + } + FileFinder::finish(); + return 0; +} + |