src/frontends/frontend_helpers.cpp

   1 /**
   2  * \file frontend_helpers.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Angus Leeming
   7  * \author Herbert Voß
   8  *
   9  * Full author contact details are available in file CREDITS.
  10  */
  11
  12 #include <config.h>
  13
  14 #include "frontend_helpers.h"
  15
  16 #include "gettext.h"
  17 #include "Language.h"
  18
  19 #include "frontends/FileDialog.h"
  20 #include "frontends/alert.h"
  21
  22 #include "support/filetools.h"
  23 #include "support/lstrings.h"
  24 #include "support/lyxalgo.h"
  25 #include "support/os.h"
  26 #include "support/Package.h"
  27 #include "support/Path.h"
  28 #include "support/Systemcall.h"
  29
  30 #include <boost/cregex.hpp>
  31
  32 #include <algorithm>
  33 #include <fstream>
  34
  35 using std::string;
  36 using std::vector;
  37 using std::pair;
  38 using std::endl;
  39
  40 namespace lyx {
  41 namespace frontend {
  42
  43 using support::addName;
  44 using support::bformat;
  45 using support::FileFilterList;
  46 using support::FileName;
  47 using support::getExtension;
  48 using support::getVectorFromString;
  49 using support::libFileSearch;
  50 using support::makeAbsPath;
  51 using support::makeRelPath;
  52 using support::onlyFilename;
  53 using support::onlyPath;
  54 using support::package;
  55 using support::prefixIs;
  56 using support::quoteName;
  57 using support::removeExtension;
  58 using support::Systemcall;
  59 using support::token;
  60
  61
  62 namespace {
  63
  64 struct Sorter
  65 {
  66         bool operator()(LanguagePair const & lhs, LanguagePair const & rhs) const {
  67                 return lhs.first < rhs.first;
  68         }
  69 };
  70
  71
  72 } // namespace anon
  73
  74
  75 vector<LanguagePair> const getLanguageData(bool character_dlg)
  76 {
  77         vector<LanguagePair>::size_type const size = character_dlg ?
  78                 languages.size() + 2 : languages.size();
  79
  80         vector<LanguagePair> langs(size);
  81
  82         if (character_dlg) {
  83                 langs[0].first = _("No change");
  84                 langs[0].second = "ignore";
  85                 langs[1].first = _("Reset");
  86                 langs[1].second = "reset";
  87         }
  88
  89         vector<string>::size_type i = character_dlg ? 2 : 0;
  90         for (Languages::const_iterator cit = languages.begin();
  91              cit != languages.end(); ++cit) {
  92                 langs[i].first  = _(cit->second.display());
  93                 langs[i].second = cit->second.lang();
  94                 ++i;
  95         }
  96
  97         // Don't sort "ignore" and "reset"
  98         vector<LanguagePair>::iterator begin = character_dlg ?
  99                 langs.begin() + 2 : langs.begin();
 100
 101         std::sort(begin, langs.end(), Sorter());
 102
 103         return langs;
 104 }
 105
 106
 107 docstring const browseFile(docstring const & filename,
 108                         docstring const & title,
 109                         FileFilterList const & filters,
 110                         bool save,
 111                         pair<docstring,docstring> const & dir1,
 112                         pair<docstring,docstring> const & dir2)
 113 {
 114         docstring lastPath = from_ascii(".");
 115         if (!filename.empty())
 116                 lastPath = from_utf8(onlyPath(to_utf8(filename)));
 117
 118         FileDialog fileDlg(title, LFUN_SELECT_FILE_SYNC, dir1, dir2);
 119
 120         FileDialog::Result result;
 121
 122         if (save)
 123                 result = fileDlg.save(lastPath, filters,
 124                                       from_utf8(onlyFilename(to_utf8(filename))));
 125         else
 126                 result = fileDlg.open(lastPath, filters,
 127                                       from_utf8(onlyFilename(to_utf8(filename))));
 128
 129         return result.second;
 130 }
 131
 132
 133 docstring const browseRelFile(docstring const & filename,
 134                            docstring const & refpath,
 135                            docstring const & title,
 136                            FileFilterList const & filters,
 137                            bool save,
 138                            pair<docstring,docstring> const & dir1,
 139                            pair<docstring,docstring> const & dir2)
 140 {
 141         docstring const fname = from_utf8(makeAbsPath(
 142                 to_utf8(filename), to_utf8(refpath)).absFilename());
 143
 144         docstring const outname = browseFile(fname, title, filters, save,
 145                                           dir1, dir2);
 146         docstring const reloutname = makeRelPath(outname, refpath);
 147         if (prefixIs(reloutname, from_ascii("../")))
 148                 return outname;
 149         else
 150                 return reloutname;
 151 }
 152
 153
 154 docstring const browseLibFile(docstring const & dir,
 155                            docstring const & name,
 156                            docstring const & ext,
 157                            docstring const & title,
 158                            FileFilterList const & filters)
 159 {
 160         // FIXME UNICODE
 161         pair<docstring, docstring> const dir1(_("System files|#S#s"),
 162                 from_utf8(addName(package().system_support().absFilename(), to_utf8(dir))));
 163
 164         pair<docstring, docstring> const dir2(_("User files|#U#u"),
 165                 from_utf8(addName(package().user_support().absFilename(), to_utf8(dir))));
 166
 167         docstring const result = browseFile(from_utf8(
 168                 libFileSearch(to_utf8(dir), to_utf8(name), to_utf8(ext)).absFilename()),
 169                 title, filters, false, dir1, dir2);
 170
 171         // remove the extension if it is the default one
 172         docstring noextresult;
 173         if (from_utf8(getExtension(to_utf8(result))) == ext)
 174                 noextresult = from_utf8(removeExtension(to_utf8(result)));
 175         else
 176                 noextresult = result;
 177
 178         // remove the directory, if it is the default one
 179         docstring const file = from_utf8(onlyFilename(to_utf8(noextresult)));
 180         if (from_utf8(libFileSearch(to_utf8(dir), to_utf8(file), to_utf8(ext)).absFilename()) == result)
 181                 return file;
 182         else
 183                 return noextresult;
 184 }
 185
 186
 187 docstring const browseDir(docstring const & pathname,
 188                        docstring const & title,
 189                        pair<docstring,docstring> const & dir1,
 190                        pair<docstring,docstring> const & dir2)
 191 {
 192         docstring lastPath = from_ascii(".");
 193         if (!pathname.empty())
 194                 lastPath = from_utf8(onlyPath(to_utf8(pathname)));
 195
 196         FileDialog fileDlg(title, LFUN_SELECT_FILE_SYNC, dir1, dir2);
 197
 198         FileDialog::Result const result =
 199                 fileDlg.opendir(lastPath, from_utf8(onlyFilename(to_utf8(pathname))));
 200
 201         return result.second;
 202 }
 203
 204
 205 void rescanTexStyles()
 206 {
 207         // Run rescan in user lyx directory
 208         support::Path p(package().user_support());
 209         FileName const command = libFileSearch("scripts", "TeXFiles.py");
 210         Systemcall one;
 211         int const status = one.startscript(Systemcall::Wait,
 212                         lyx::support::os::python() + ' ' +
 213                         quoteName(command.toFilesystemEncoding()));
 214         if (status == 0)
 215                 return;
 216         // FIXME UNICODE
 217         Alert::error(_("Could not update TeX information"),
 218                 bformat(_("The script `%s' failed."), from_utf8(command.absFilename())));
 219 }
 220
 221
 222 void getTexFileList(string const & filename, std::vector<string> & list)
 223 {
 224         list.clear();
 225         FileName const file = libFileSearch("", filename);
 226         if (file.empty())
 227                 return;
 228
 229         list = getVectorFromString(file.fileContents(), "\n");
 230
 231         // Normalise paths like /foo//bar ==> /foo/bar
 232         boost::RegEx regex("/{2,}");
 233         std::vector<string>::iterator it  = list.begin();
 234         std::vector<string>::iterator end = list.end();
 235         for (; it != end; ++it)
 236                 *it = regex.Merge((*it), "/");
 237
 238         // remove empty items and duplicates
 239         list.erase(std::remove(list.begin(), list.end(), ""), list.end());
 240         eliminate_duplicates(list);
 241 }
 242
 243 } // namespace frontend
 244 } // namespace lyx