src/format.C

   1 /**
   2  * \file format.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Dekel Tsur
   7  *
   8  * Full author contact details are available in file CREDITS
   9  */
  10
  11 #include "config.h"
  12 #include "format.h"
  13 #include "lyxrc.h"
  14 #include "debug.h"
  15 #include "lyx_cb.h" // for ShowMessage() ... to be removed?
  16 #include "gettext.h"
  17 #include "LString.h"
  18 #include "support/BoostFormat.h"
  19
  20 #include "frontends/Alert.h" //to be removed?
  21
  22 #include "support/filetools.h"
  23 #include "support/path.h"
  24 #include "support/systemcall.h"
  25 #include "support/lyxfunctional.h"
  26
  27
  28
  29 namespace {
  30
  31 string const token_from("$$i");
  32 string const token_path("$$p");
  33
  34 } //namespace anon
  35
  36 bool operator<(Format const & a, Format const & b)
  37 {
  38         // use the compare_ascii_no_case instead of compare_no_case,
  39         // because in turkish, 'i' is not the lowercase version of 'I',
  40         // and thus turkish locale breaks parsing of tags.
  41
  42         return compare_ascii_no_case(a.prettyname(), b.prettyname()) < 0;
  43 }
  44
  45 Format::Format(string const & n, string const & e, string const & p,
  46        string const & s, string const & v): name_(n),
  47                                             extension_(e),
  48                                             prettyname_(p),
  49                                             shortcut_(s),
  50                                             viewer_(v)
  51 {}
  52
  53
  54 bool Format::dummy() const
  55 {
  56         return extension().empty();
  57 }
  58
  59
  60 bool Format::isChildFormat() const
  61 {
  62         if (name_.empty())
  63                 return false;
  64         return isdigit(name_[name_.length() - 1]);
  65 }
  66
  67
  68 string const Format::parentFormat() const
  69 {
  70         return name_.substr(0, name_.length() - 1);
  71 }
  72
  73
  74 // This method should return a reference, and throw an exception
  75 // if the format named name cannot be found (Lgb)
  76 Format const * Formats::getFormat(string const & name) const
  77 {
  78         FormatList::const_iterator cit =
  79                 find_if(formatlist.begin(), formatlist.end(),
  80                         lyx::compare_memfun(&Format::name, name));
  81         if (cit != formatlist.end())
  82                 return &(*cit);
  83         else
  84                 return 0;
  85 }
  86
  87
  88 int Formats::getNumber(string const & name) const
  89 {
  90         FormatList::const_iterator cit =
  91                 find_if(formatlist.begin(), formatlist.end(),
  92                         lyx::compare_memfun(&Format::name, name));
  93         if (cit != formatlist.end())
  94                 return cit - formatlist.begin();
  95         else
  96                 return -1;
  97 }
  98
  99
 100 void Formats::add(string const & name)
 101 {
 102         if (!getFormat(name))
 103                 add(name, name, name, string());
 104 }
 105
 106
 107 void Formats::add(string const & name, string const & extension,
 108                   string const & prettyname, string const & shortcut)
 109 {
 110         FormatList::iterator it =
 111                 find_if(formatlist.begin(), formatlist.end(),
 112                         lyx::compare_memfun(&Format::name, name));
 113         if (it == formatlist.end())
 114                 formatlist.push_back(Format(name, extension, prettyname,
 115                                             shortcut, ""));
 116         else {
 117                 string viewer = it->viewer();
 118                 *it = Format(name, extension, prettyname, shortcut, viewer);
 119         }
 120 }
 121
 122
 123 void Formats::erase(string const & name)
 124 {
 125         FormatList::iterator it =
 126                 find_if(formatlist.begin(), formatlist.end(),
 127                         lyx::compare_memfun(&Format::name, name));
 128         if (it != formatlist.end())
 129                 formatlist.erase(it);
 130 }
 131
 132
 133 void Formats::sort()
 134 {
 135         std::sort(formatlist.begin(), formatlist.end());
 136 }
 137
 138
 139 void Formats::setViewer(string const & name, string const & command)
 140 {
 141         add(name);
 142         FormatList::iterator it =
 143                 find_if(formatlist.begin(), formatlist.end(),
 144                         lyx::compare_memfun(&Format::name, name));
 145         if (it != formatlist.end())
 146                 it->setViewer(command);
 147 }
 148
 149
 150 bool Formats::view(Buffer const * buffer, string const & filename,
 151                    string const & format_name) const
 152 {
 153         if (filename.empty())
 154                 return false;
 155
 156         Format const * format = getFormat(format_name);
 157         if (format && format->viewer().empty() &&
 158             format->isChildFormat())
 159                 format = getFormat(format->parentFormat());
 160         if (!format || format->viewer().empty()) {
 161 #if USE_BOOST_FORMAT
 162                 Alert::alert(_("Cannot view file"),
 163                              boost::io::str(boost::format(_("No information for viewing %1$s"))
 164                            % prettyName(format_name)));
 165 #else
 166                 Alert::alert(_("Cannot view file"),
 167                              _("No information for viewing ")
 168                              + prettyName(format_name));
 169 #endif
 170                            return false;
 171         }
 172
 173         string command = format->viewer();
 174
 175         if (format_name == "dvi" &&
 176             !lyxrc.view_dvi_paper_option.empty()) {
 177                 command += ' ' + lyxrc.view_dvi_paper_option;
 178                 string paper_size = papersize(buffer);
 179                 if (paper_size == "letter")
 180                         paper_size = "us";
 181                 command += ' ' + paper_size;
 182                 if (buffer->params.orientation
 183                     == BufferParams::ORIENTATION_LANDSCAPE)
 184                         command += 'r';
 185         }
 186
 187         if (!contains(command, token_from))
 188                 command += ' ' + token_from;
 189
 190         command = subst(command, token_from,
 191                         QuoteName(OnlyFilename(filename)));
 192         command = subst(command, token_path, QuoteName(OnlyPath(filename)));
 193
 194         lyxerr[Debug::FILES] << "Executing command: " << command << std::endl;
 195         ShowMessage(buffer, _("Executing command:"), command);
 196
 197         Path p(OnlyPath(filename));
 198         Systemcall one;
 199         int const res = one.startscript(Systemcall::DontWait, command);
 200
 201         if (res) {
 202                 Alert::alert(_("Cannot view file"),
 203                            _("Error while executing"),
 204                            command.substr(0, 50));
 205                 return false;
 206         }
 207         return true;
 208 }
 209
 210
 211 string const Formats::prettyName(string const & name) const
 212 {
 213         Format const * format = getFormat(name);
 214         if (format)
 215                 return format->prettyname();
 216         else
 217                 return name;
 218 }
 219
 220
 221 string const Formats::extension(string const & name) const
 222 {
 223         Format const * format = getFormat(name);
 224         if (format)
 225                 return format->extension();
 226         else
 227                 return name;
 228 }
 229
 230
 231 string const papersize(Buffer const * buffer)
 232 {
 233         char real_papersize = buffer->params.papersize;
 234         if (real_papersize == BufferParams::PAPER_DEFAULT)
 235                 real_papersize = lyxrc.default_papersize;
 236
 237         switch (real_papersize) {
 238         case BufferParams::PAPER_A3PAPER:
 239                 return "a3";
 240         case BufferParams::PAPER_A4PAPER:
 241                 return "a4";
 242         case BufferParams::PAPER_A5PAPER:
 243                 return "a5";
 244         case BufferParams::PAPER_B5PAPER:
 245                 return "b5";
 246         case BufferParams::PAPER_EXECUTIVEPAPER:
 247                 return "foolscap";
 248         case BufferParams::PAPER_LEGALPAPER:
 249                 return "legal";
 250         case BufferParams::PAPER_USLETTER:
 251         default:
 252                 return "letter";
 253         }
 254 }
 255
 256
 257 Formats formats;
 258
 259 Formats system_formats;