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[lyx.git] / src / insets / InsetInclude.cpp
1 /**
2  * \file InsetInclude.cpp
3  * This file is part of LyX, the document processor.
4  * Licence details can be found in the file COPYING.
5  *
6  * \author Lars Gullik Bjønnes
7  *
8  * Full author contact details are available in file CREDITS.
9  */
10
11 #include <config.h>
12
13 #include "InsetInclude.h"
14
15 #include "Buffer.h"
16 #include "buffer_funcs.h"
17 #include "BufferList.h"
18 #include "BufferParams.h"
19 #include "BufferView.h"
20 #include "Cursor.h"
21 #include "debug.h"
22 #include "DispatchResult.h"
23 #include "Exporter.h"
24 #include "FuncRequest.h"
25 #include "FuncStatus.h"
26 #include "gettext.h"
27 #include "LaTeXFeatures.h"
28 #include "LyX.h"
29 #include "LyXRC.h"
30 #include "Lexer.h"
31 #include "MetricsInfo.h"
32 #include "OutputParams.h"
33 #include "TocBackend.h"
34
35 #include "frontends/alert.h"
36 #include "frontends/Painter.h"
37
38 #include "graphics/PreviewImage.h"
39 #include "graphics/PreviewLoader.h"
40
41 #include "insets/RenderPreview.h"
42 #include "insets/InsetListingsParams.h"
43
44 #include "support/filetools.h"
45 #include "support/lstrings.h" // contains
46 #include "support/lyxalgo.h"
47 #include "support/lyxlib.h"
48 #include "support/convert.h"
49
50 #include <boost/bind.hpp>
51 #include <boost/filesystem/operations.hpp>
52
53
54 namespace lyx {
55   
56 // Implementation is in LyX.cpp
57 extern void dispatch(FuncRequest const & action);
58
59 using support::addName;
60 using support::absolutePath;
61 using support::bformat;
62 using support::changeExtension;
63 using support::contains;
64 using support::copy;
65 using support::DocFileName;
66 using support::FileName;
67 using support::getFileContents;
68 using support::getVectorFromString;
69 using support::isFileReadable;
70 using support::isLyXFilename;
71 using support::isValidLaTeXFilename;
72 using support::latex_path;
73 using support::makeAbsPath;
74 using support::makeDisplayPath;
75 using support::makeRelPath;
76 using support::onlyFilename;
77 using support::onlyPath;
78 using support::prefixIs;
79 using support::subst;
80 using support::sum;
81
82 using std::endl;
83 using std::string;
84 using std::auto_ptr;
85 using std::istringstream;
86 using std::ostream;
87 using std::ostringstream;
88 using std::vector;
89
90 namespace Alert = frontend::Alert;
91 namespace fs = boost::filesystem;
92
93
94 namespace {
95
96 docstring const uniqueID()
97 {
98         static unsigned int seed = 1000;
99         return "file" + convert<docstring>(++seed);
100 }
101
102
103 bool isListings(InsetCommandParams const & params)
104 {
105         return params.getCmdName() == "lstinputlisting";
106 }
107
108 } // namespace anon
109
110
111 InsetInclude::InsetInclude(InsetCommandParams const & p)
112         : params_(p), include_label(uniqueID()),
113           preview_(new RenderMonitoredPreview(this)),
114           set_label_(false)
115 {
116         preview_->fileChanged(boost::bind(&InsetInclude::fileChanged, this));
117 }
118
119
120 InsetInclude::InsetInclude(InsetInclude const & other)
121         : Inset(other),
122           params_(other.params_),
123           include_label(other.include_label),
124           preview_(new RenderMonitoredPreview(this)),
125           set_label_(false)
126 {
127         preview_->fileChanged(boost::bind(&InsetInclude::fileChanged, this));
128 }
129
130
131 InsetInclude::~InsetInclude()
132 {
133         InsetIncludeMailer(*this).hideDialog();
134 }
135
136
137 void InsetInclude::doDispatch(Cursor & cur, FuncRequest & cmd)
138 {
139         switch (cmd.action) {
140
141         case LFUN_INSET_MODIFY: {
142                 InsetCommandParams p("include");
143                 InsetIncludeMailer::string2params(to_utf8(cmd.argument()), p);
144                 if (!p.getCmdName().empty()) {
145                         if (isListings(p)){
146                                 InsetListingsParams par_old(params().getOptions());
147                                 InsetListingsParams par_new(p.getOptions());
148                                 if (par_old.getParamValue("label") !=
149                                     par_new.getParamValue("label")
150                                     && !par_new.getParamValue("label").empty())
151                                         cur.bv().buffer().changeRefsIfUnique(
152                                                 from_utf8(par_old.getParamValue("label")),
153                                                 from_utf8(par_new.getParamValue("label")),
154                                                 Inset::REF_CODE);
155                         }
156                         set(p, cur.buffer());
157                         cur.buffer().updateBibfilesCache();
158                 } else
159                         cur.noUpdate();
160                 break;
161         }
162
163         case LFUN_INSET_DIALOG_UPDATE:
164                 InsetIncludeMailer(*this).updateDialog(&cur.bv());
165                 break;
166
167         case LFUN_MOUSE_RELEASE:
168                 if (!cur.selection())
169                         InsetIncludeMailer(*this).showDialog(&cur.bv());
170                 break;
171
172         default:
173                 Inset::doDispatch(cur, cmd);
174                 break;
175         }
176 }
177
178
179 bool InsetInclude::getStatus(Cursor & cur, FuncRequest const & cmd,
180                 FuncStatus & flag) const
181 {
182         switch (cmd.action) {
183
184         case LFUN_INSET_MODIFY:
185         case LFUN_INSET_DIALOG_UPDATE:
186                 flag.enabled(true);
187                 return true;
188
189         default:
190                 return Inset::getStatus(cur, cmd, flag);
191         }
192 }
193
194
195 InsetCommandParams const & InsetInclude::params() const
196 {
197         return params_;
198 }
199
200
201 namespace {
202
203 /// the type of inclusion
204 enum Types {
205         INCLUDE = 0,
206         VERB = 1,
207         INPUT = 2,
208         VERBAST = 3,
209         LISTINGS = 4,
210 };
211
212
213 Types type(InsetCommandParams const & params)
214 {
215         string const command_name = params.getCmdName();
216
217         if (command_name == "input")
218                 return INPUT;
219         if  (command_name == "verbatiminput")
220                 return VERB;
221         if  (command_name == "verbatiminput*")
222                 return VERBAST;
223         if  (command_name == "lstinputlisting")
224                 return LISTINGS;
225         return INCLUDE;
226 }
227
228
229 bool isVerbatim(InsetCommandParams const & params)
230 {
231         string const command_name = params.getCmdName();
232         return command_name == "verbatiminput" ||
233                 command_name == "verbatiminput*";
234 }
235
236
237 bool isInputOrInclude(InsetCommandParams const & params)
238 {
239         Types const t = type(params);
240         return (t == INPUT) || (t == INCLUDE);
241 }
242
243
244 string const masterFilename(Buffer const & buffer)
245 {
246         return buffer.getMasterBuffer()->fileName();
247 }
248
249
250 string const parentFilename(Buffer const & buffer)
251 {
252         return buffer.fileName();
253 }
254
255
256 FileName const includedFilename(Buffer const & buffer,
257                               InsetCommandParams const & params)
258 {
259         return makeAbsPath(to_utf8(params["filename"]),
260                            onlyPath(parentFilename(buffer)));
261 }
262
263
264 void add_preview(RenderMonitoredPreview &, InsetInclude const &, Buffer const &);
265
266 } // namespace anon
267
268
269 void InsetInclude::set(InsetCommandParams const & p, Buffer const & buffer)
270 {
271         params_ = p;
272         set_label_ = false;
273
274         if (preview_->monitoring())
275                 preview_->stopMonitoring();
276
277         if (type(params_) == INPUT)
278                 add_preview(*preview_, *this, buffer);
279 }
280
281
282 auto_ptr<Inset> InsetInclude::doClone() const
283 {
284         return auto_ptr<Inset>(new InsetInclude(*this));
285 }
286
287
288 void InsetInclude::write(Buffer const &, ostream & os) const
289 {
290         write(os);
291 }
292
293
294 void InsetInclude::write(ostream & os) const
295 {
296         os << "Include " << to_utf8(params_.getCommand()) << '\n'
297            << "preview " << convert<string>(params_.preview()) << '\n';
298 }
299
300
301 void InsetInclude::read(Buffer const &, Lexer & lex)
302 {
303         read(lex);
304 }
305
306
307 void InsetInclude::read(Lexer & lex)
308 {
309         if (lex.isOK()) {
310                 lex.eatLine();
311                 string const command = lex.getString();
312                 params_.scanCommand(command);
313         }
314         string token;
315         while (lex.isOK()) {
316                 lex.next();
317                 token = lex.getString();
318                 if (token == "\\end_inset")
319                         break;
320                 if (token == "preview") {
321                         lex.next();
322                         params_.preview(lex.getBool());
323                 } else
324                         lex.printError("Unknown parameter name `$$Token' for command " + params_.getCmdName());
325         }
326         if (token != "\\end_inset") {
327                 lex.printError("Missing \\end_inset at this point. "
328                                "Read: `$$Token'");
329         }
330 }
331
332
333 docstring const InsetInclude::getScreenLabel(Buffer const & buf) const
334 {
335         docstring temp;
336
337         switch (type(params_)) {
338                 case INPUT:
339                         temp = buf.B_("Input");
340                         break;
341                 case VERB:
342                         temp = buf.B_("Verbatim Input");
343                         break;
344                 case VERBAST:
345                         temp = buf.B_("Verbatim Input*");
346                         break;
347                 case INCLUDE:
348                         temp = buf.B_("Include");
349                         break;
350                 case LISTINGS: {
351                         temp = listings_label_;
352                 }
353         }
354
355         temp += ": ";
356
357         if (params_["filename"].empty())
358                 temp += "???";
359         else
360                 temp += from_utf8(onlyFilename(to_utf8(params_["filename"])));
361
362         return temp;
363 }
364
365
366 namespace {
367
368 /// return the child buffer if the file is a LyX doc and is loaded
369 Buffer * getChildBuffer(Buffer const & buffer, InsetCommandParams const & params)
370 {
371         if (isVerbatim(params) || isListings(params))
372                 return 0;
373
374         string const included_file = includedFilename(buffer, params).absFilename();
375         if (!isLyXFilename(included_file))
376                 return 0;
377
378         Buffer * childBuffer = theBufferList().getBuffer(included_file);
379
380         //FIXME RECURSIVE INCLUDES
381         if (childBuffer == & buffer)
382                 return 0;
383         else
384                 return childBuffer;
385 }
386
387 } // namespace anon
388
389 /// return true if the file is or got loaded.
390 Buffer * loadIfNeeded(Buffer const & parent, InsetCommandParams const & params)
391 {
392         if (isVerbatim(params) || isListings(params))
393                 return 0;
394
395         string const parent_filename = parent.fileName();
396         FileName const included_file = makeAbsPath(to_utf8(params["filename"]),
397                            onlyPath(parent_filename));
398
399         if (!isLyXFilename(included_file.absFilename()))
400                 return 0;
401
402         Buffer * child = theBufferList().getBuffer(included_file.absFilename());
403         if (!child) {
404                 // the readonly flag can/will be wrong, not anymore I think.
405                 if (!fs::exists(included_file.toFilesystemEncoding()))
406                         return 0;
407
408                 child = theBufferList().newBuffer(included_file.absFilename());
409                 if (!loadLyXFile(child, included_file)) {
410                         //close the buffer we just opened
411                         theBufferList().close(child, false);
412                         return 0;
413                 }
414         }
415         child->setParentName(parent_filename);
416         return child;
417 }
418
419
420 int InsetInclude::latex(Buffer const & buffer, odocstream & os,
421                         OutputParams const & runparams) const
422 {
423         string incfile(to_utf8(params_["filename"]));
424
425         // Do nothing if no file name has been specified
426         if (incfile.empty())
427                 return 0;
428
429         FileName const included_file(includedFilename(buffer, params_));
430
431         //Check we're not trying to include ourselves.
432         //FIXME RECURSIVE INCLUDE
433         //This isn't sufficient, as the inclusion could be downstream.
434         //But it'll have to do for now.
435         if (isInputOrInclude(params_) &&
436                 buffer.fileName() == included_file.absFilename())
437         {
438                 Alert::error(_("Recursive input"),
439                                bformat(_("Attempted to include file %1$s in itself! "
440                                "Ignoring inclusion."), from_utf8(incfile)));
441                 return 0;
442         }
443
444         Buffer const * const m_buffer = buffer.getMasterBuffer();
445
446         // if incfile is relative, make it relative to the master
447         // buffer directory.
448         if (!absolutePath(incfile)) {
449                 // FIXME UNICODE
450                 incfile = to_utf8(makeRelPath(from_utf8(included_file.absFilename()),
451                                               from_utf8(m_buffer->filePath())));
452         }
453
454         // write it to a file (so far the complete file)
455         string const exportfile = changeExtension(incfile, ".tex");
456         string const mangled =
457                 DocFileName(changeExtension(included_file.absFilename(),".tex")).
458                         mangledFilename();
459         FileName const writefile(makeAbsPath(mangled, m_buffer->temppath()));
460
461         if (!runparams.nice)
462                 incfile = mangled;
463         else if (!isValidLaTeXFilename(incfile)) {
464                 frontend::Alert::warning(_("Invalid filename"),
465                                          _("The following filename is likely to cause trouble "
466                                            "when running the exported file through LaTeX: ") +
467                                             from_utf8(incfile));
468         }
469         LYXERR(Debug::LATEX) << "incfile:" << incfile << endl;
470         LYXERR(Debug::LATEX) << "exportfile:" << exportfile << endl;
471         LYXERR(Debug::LATEX) << "writefile:" << writefile << endl;
472
473         if (runparams.inComment || runparams.dryrun) {
474                 //Don't try to load or copy the file if we're
475                 //in a comment or doing a dryrun
476         } else if (isInputOrInclude(params_) &&
477                  isLyXFilename(included_file.absFilename())) {
478                 //if it's a LyX file and we're inputting or including,
479                 //try to load it so we can write the associated latex
480                 if (!loadIfNeeded(buffer, params_))
481                         return false;
482
483                 Buffer * tmp = theBufferList().getBuffer(included_file.absFilename());
484
485                 if (tmp->params().textclass != m_buffer->params().textclass) {
486                         // FIXME UNICODE
487                         docstring text = bformat(_("Included file `%1$s'\n"
488                                                 "has textclass `%2$s'\n"
489                                                              "while parent file has textclass `%3$s'."),
490                                               makeDisplayPath(included_file.absFilename()),
491                                               from_utf8(tmp->params().getTextClass().name()),
492                                               from_utf8(m_buffer->params().getTextClass().name()));
493                         Alert::warning(_("Different textclasses"), text);
494                         //return 0;
495                 }
496
497                 tmp->markDepClean(m_buffer->temppath());
498
499 // FIXME: handle non existing files
500 // FIXME: Second argument is irrelevant!
501 // since only_body is true, makeLaTeXFile will not look at second
502 // argument. Should we set it to string(), or should makeLaTeXFile
503 // make use of it somehow? (JMarc 20031002)
504                 // The included file might be written in a different encoding
505                 Encoding const * const oldEnc = runparams.encoding;
506                 runparams.encoding = &tmp->params().encoding();
507                 tmp->makeLaTeXFile(writefile,
508                                    onlyPath(masterFilename(buffer)),
509                                    runparams, false);
510                 runparams.encoding = oldEnc;
511         } else {
512                 // In this case, it's not a LyX file, so we copy the file
513                 // to the temp dir, so that .aux files etc. are not created
514                 // in the original dir. Files included by this file will be
515                 // found via input@path, see ../Buffer.cpp.
516                 unsigned long const checksum_in  = sum(included_file);
517                 unsigned long const checksum_out = sum(writefile);
518
519                 if (checksum_in != checksum_out) {
520                         if (!copy(included_file, writefile)) {
521                                 // FIXME UNICODE
522                                 LYXERR(Debug::LATEX)
523                                         << to_utf8(bformat(_("Could not copy the file\n%1$s\n"
524                                                                   "into the temporary directory."),
525                                                    from_utf8(included_file.absFilename())))
526                                         << endl;
527                                 return 0;
528                         }
529                 }
530         }
531
532         string const tex_format = (runparams.flavor == OutputParams::LATEX) ?
533                         "latex" : "pdflatex";
534         if (isVerbatim(params_)) {
535                 incfile = latex_path(incfile);
536                 // FIXME UNICODE
537                 os << '\\' << from_ascii(params_.getCmdName()) << '{'
538                    << from_utf8(incfile) << '}';
539         } else if (type(params_) == INPUT) {
540                 runparams.exportdata->addExternalFile(tex_format, writefile,
541                                                       exportfile);
542
543                 // \input wants file with extension (default is .tex)
544                 if (!isLyXFilename(included_file.absFilename())) {
545                         incfile = latex_path(incfile);
546                         // FIXME UNICODE
547                         os << '\\' << from_ascii(params_.getCmdName())
548                            << '{' << from_utf8(incfile) << '}';
549                 } else {
550                 incfile = changeExtension(incfile, ".tex");
551                 incfile = latex_path(incfile);
552                         // FIXME UNICODE
553                         os << '\\' << from_ascii(params_.getCmdName())
554                            << '{' << from_utf8(incfile) <<  '}';
555                 }
556         } else if (type(params_) == LISTINGS) {
557                 os << '\\' << from_ascii(params_.getCmdName());
558                 string opt = params_.getOptions();
559                 // opt is set in QInclude dialog and should have passed validation.
560                 InsetListingsParams params(opt);
561                 if (!params.params().empty())
562                         os << "[" << from_utf8(params.params()) << "]";
563                 os << '{'  << from_utf8(incfile) << '}';
564         } else {
565                 runparams.exportdata->addExternalFile(tex_format, writefile,
566                                                       exportfile);
567
568                 // \include don't want extension and demands that the
569                 // file really have .tex
570                 incfile = changeExtension(incfile, string());
571                 incfile = latex_path(incfile);
572                 // FIXME UNICODE
573                 os << '\\' << from_ascii(params_.getCmdName()) << '{'
574                    << from_utf8(incfile) << '}';
575         }
576
577         return 0;
578 }
579
580
581 int InsetInclude::plaintext(Buffer const & buffer, odocstream & os,
582                             OutputParams const &) const
583 {
584         if (isVerbatim(params_) || isListings(params_)) {
585                 os << '[' << getScreenLabel(buffer) << '\n';
586                 // FIXME: We don't know the encoding of the file
587                 docstring const str =
588                      from_utf8(getFileContents(includedFilename(buffer, params_)));
589                 os << str;
590                 os << "\n]";
591                 return PLAINTEXT_NEWLINE + 1; // one char on a separate line
592         } else {
593                 docstring const str = '[' + getScreenLabel(buffer) + ']';
594                 os << str;
595                 return str.size();
596         }
597 }
598
599
600 int InsetInclude::docbook(Buffer const & buffer, odocstream & os,
601                           OutputParams const & runparams) const
602 {
603         string incfile = to_utf8(params_["filename"]);
604
605         // Do nothing if no file name has been specified
606         if (incfile.empty())
607                 return 0;
608
609         string const included_file = includedFilename(buffer, params_).absFilename();
610
611         //Check we're not trying to include ourselves.
612         //FIXME RECURSIVE INCLUDE
613         //This isn't sufficient, as the inclusion could be downstream.
614         //But it'll have to do for now.
615         if (buffer.fileName() == included_file) {
616                 Alert::error(_("Recursive input"),
617                                bformat(_("Attempted to include file %1$s in itself! "
618                                "Ignoring inclusion."), from_utf8(incfile)));
619                 return 0;
620         }
621
622         // write it to a file (so far the complete file)
623         string const exportfile = changeExtension(incfile, ".sgml");
624         DocFileName writefile(changeExtension(included_file, ".sgml"));
625
626         if (loadIfNeeded(buffer, params_)) {
627                 Buffer * tmp = theBufferList().getBuffer(included_file);
628
629                 string const mangled = writefile.mangledFilename();
630                 writefile = makeAbsPath(mangled,
631                                         buffer.getMasterBuffer()->temppath());
632                 if (!runparams.nice)
633                         incfile = mangled;
634
635                 LYXERR(Debug::LATEX) << "incfile:" << incfile << endl;
636                 LYXERR(Debug::LATEX) << "exportfile:" << exportfile << endl;
637                 LYXERR(Debug::LATEX) << "writefile:" << writefile << endl;
638
639                 tmp->makeDocBookFile(writefile, runparams, true);
640         }
641
642         runparams.exportdata->addExternalFile("docbook", writefile,
643                                               exportfile);
644         runparams.exportdata->addExternalFile("docbook-xml", writefile,
645                                               exportfile);
646
647         if (isVerbatim(params_) || isListings(params_)) {
648                 os << "<inlinegraphic fileref=\""
649                    << '&' << include_label << ';'
650                    << "\" format=\"linespecific\">";
651         } else
652                 os << '&' << include_label << ';';
653
654         return 0;
655 }
656
657
658 void InsetInclude::validate(LaTeXFeatures & features) const
659 {
660         string incfile(to_utf8(params_["filename"]));
661         string writefile;
662
663         Buffer const & buffer = features.buffer();
664
665         string const included_file = includedFilename(buffer, params_).absFilename();
666
667         if (isLyXFilename(included_file))
668                 writefile = changeExtension(included_file, ".sgml");
669         else
670                 writefile = included_file;
671
672         if (!features.runparams().nice && !isVerbatim(params_) && !isListings(params_)) {
673                 incfile = DocFileName(writefile).mangledFilename();
674                 writefile = makeAbsPath(incfile,
675                                         buffer.getMasterBuffer()->temppath()).absFilename();
676         }
677
678         features.includeFile(include_label, writefile);
679
680         if (isVerbatim(params_))
681                 features.require("verbatim");
682         else if (isListings(params_))
683                 features.require("listings");
684
685         // Here we must do the fun stuff...
686         // Load the file in the include if it needs
687         // to be loaded:
688         if (loadIfNeeded(buffer, params_)) {
689                 // a file got loaded
690                 Buffer * const tmp = theBufferList().getBuffer(included_file);
691                 // make sure the buffer isn't us
692                 // FIXME RECURSIVE INCLUDES
693                 // This is not sufficient, as recursive includes could be
694                 // more than a file away. But it will do for now.
695                 if (tmp && tmp != & buffer) {
696                         // We must temporarily change features.buffer,
697                         // otherwise it would always be the master buffer,
698                         // and nested includes would not work.
699                         features.setBuffer(*tmp);
700                         tmp->validate(features);
701                         features.setBuffer(buffer);
702                 }
703         }
704 }
705
706
707 void InsetInclude::getLabelList(Buffer const & buffer,
708                                 std::vector<docstring> & list) const
709 {
710         if (isListings(params_)) {
711                 InsetListingsParams params(params_.getOptions());
712                 string label = params.getParamValue("label");
713                 if (!label.empty())
714                         list.push_back(from_utf8(label));
715         }
716         else if (loadIfNeeded(buffer, params_)) {
717                 string const included_file = includedFilename(buffer, params_).absFilename();
718                 Buffer * tmp = theBufferList().getBuffer(included_file);
719                 tmp->setParentName("");
720                 tmp->getLabelList(list);
721                 tmp->setParentName(parentFilename(buffer));
722         }
723 }
724
725
726 void InsetInclude::fillWithBibKeys(Buffer const & buffer,
727                 BiblioInfo & keys, InsetIterator const & /*di*/) const
728 {
729         if (loadIfNeeded(buffer, params_)) {
730                 string const included_file = includedFilename(buffer, params_).absFilename();
731                 Buffer * tmp = theBufferList().getBuffer(included_file);
732                 //FIXME This is kind of a dirty hack and should be made reasonable.
733                 tmp->setParentName("");
734                 keys.fillWithBibKeys(tmp);
735                 tmp->setParentName(parentFilename(buffer));
736         }
737 }
738
739
740 void InsetInclude::updateBibfilesCache(Buffer const & buffer)
741 {
742         Buffer * const tmp = getChildBuffer(buffer, params_);
743         if (tmp) {
744                 tmp->setParentName("");
745                 tmp->updateBibfilesCache();
746                 tmp->setParentName(parentFilename(buffer));
747         }
748 }
749
750
751 std::vector<FileName> const &
752 InsetInclude::getBibfilesCache(Buffer const & buffer) const
753 {
754         Buffer * const tmp = getChildBuffer(buffer, params_);
755         if (tmp) {
756                 tmp->setParentName("");
757                 std::vector<FileName> const & cache = tmp->getBibfilesCache();
758                 tmp->setParentName(parentFilename(buffer));
759                 return cache;
760         }
761         static std::vector<FileName> const empty;
762         return empty;
763 }
764
765
766 bool InsetInclude::metrics(MetricsInfo & mi, Dimension & dim) const
767 {
768         BOOST_ASSERT(mi.base.bv);
769
770         bool use_preview = false;
771         if (RenderPreview::status() != LyXRC::PREVIEW_OFF) {
772                 graphics::PreviewImage const * pimage =
773                         preview_->getPreviewImage(mi.base.bv->buffer());
774                 use_preview = pimage && pimage->image();
775         }
776
777         if (use_preview) {
778                 preview_->metrics(mi, dim);
779         } else {
780                 if (!set_label_) {
781                         set_label_ = true;
782                         button_.update(getScreenLabel(mi.base.bv->buffer()),
783                                        true);
784                 }
785                 button_.metrics(mi, dim);
786         }
787
788         Box b(0, dim.wid, -dim.asc, dim.des);
789         button_.setBox(b);
790
791         bool const changed = dim_ != dim;
792         dim_ = dim;
793         return changed;
794 }
795
796
797 void InsetInclude::draw(PainterInfo & pi, int x, int y) const
798 {
799         setPosCache(pi, x, y);
800
801         BOOST_ASSERT(pi.base.bv);
802
803         bool use_preview = false;
804         if (RenderPreview::status() != LyXRC::PREVIEW_OFF) {
805                 graphics::PreviewImage const * pimage =
806                         preview_->getPreviewImage(pi.base.bv->buffer());
807                 use_preview = pimage && pimage->image();
808         }
809
810         if (use_preview)
811                 preview_->draw(pi, x, y);
812         else
813                 button_.draw(pi, x, y);
814 }
815
816
817 Inset::DisplayType InsetInclude::display() const
818 {
819         return type(params_) == INPUT ? Inline : AlignCenter;
820 }
821
822
823
824 //
825 // preview stuff
826 //
827
828 void InsetInclude::fileChanged() const
829 {
830         Buffer const * const buffer_ptr = LyX::cref().updateInset(this);
831         if (!buffer_ptr)
832                 return;
833
834         Buffer const & buffer = *buffer_ptr;
835         preview_->removePreview(buffer);
836         add_preview(*preview_.get(), *this, buffer);
837         preview_->startLoading(buffer);
838 }
839
840
841 namespace {
842
843 bool preview_wanted(InsetCommandParams const & params, Buffer const & buffer)
844 {
845         FileName const included_file = includedFilename(buffer, params);
846
847         return type(params) == INPUT && params.preview() &&
848                 isFileReadable(included_file);
849 }
850
851
852 docstring const latex_string(InsetInclude const & inset, Buffer const & buffer)
853 {
854         odocstringstream os;
855         // We don't need to set runparams.encoding since this will be done
856         // by latex() anyway.
857         OutputParams runparams(0);
858         runparams.flavor = OutputParams::LATEX;
859         inset.latex(buffer, os, runparams);
860
861         return os.str();
862 }
863
864
865 void add_preview(RenderMonitoredPreview & renderer, InsetInclude const & inset,
866                  Buffer const & buffer)
867 {
868         InsetCommandParams const & params = inset.params();
869         if (RenderPreview::status() != LyXRC::PREVIEW_OFF &&
870             preview_wanted(params, buffer)) {
871                 renderer.setAbsFile(includedFilename(buffer, params));
872                 docstring const snippet = latex_string(inset, buffer);
873                 renderer.addPreview(snippet, buffer);
874         }
875 }
876
877 } // namespace anon
878
879
880 void InsetInclude::addPreview(graphics::PreviewLoader & ploader) const
881 {
882         Buffer const & buffer = ploader.buffer();
883         if (preview_wanted(params(), buffer)) {
884                 preview_->setAbsFile(includedFilename(buffer, params()));
885                 docstring const snippet = latex_string(*this, buffer);
886                 preview_->addPreview(snippet, ploader);
887         }
888 }
889
890
891 void InsetInclude::addToToc(TocList & toclist, Buffer const & buffer, ParConstIterator const & pit) const
892 {
893         if (isListings(params_)) {
894                 InsetListingsParams params(params_.getOptions());
895                 string caption = params.getParamValue("caption");
896                 if (!caption.empty()) {
897                         Toc & toc = toclist["listing"];
898                         docstring const str = convert<docstring>(toc.size() + 1)
899                                 + ". " +  from_utf8(caption);
900                         // This inset does not have a valid ParConstIterator 
901                         // so it has to use the iterator of its parent paragraph
902                         toc.push_back(TocItem(pit, 0, str));
903                 }
904                 return;
905         }
906         Buffer const * const childbuffer = getChildBuffer(buffer, params_);
907         if (!childbuffer)
908                 return;
909
910         TocList const & childtoclist = childbuffer->tocBackend().tocs();
911         TocList::const_iterator it = childtoclist.begin();
912         TocList::const_iterator const end = childtoclist.end();
913         for(; it != end; ++it)
914                 toclist[it->first].insert(toclist[it->first].end(),
915                                 it->second.begin(), it->second.end());
916 }
917
918
919 void InsetInclude::updateLabels(Buffer const & buffer, 
920                                 ParIterator const &)
921 {
922         Buffer const * const childbuffer = getChildBuffer(buffer, params_);
923         if (childbuffer)
924                 lyx::updateLabels(*childbuffer, true);
925         else if (isListings(params_)) {
926                 InsetListingsParams const par = params_.getOptions();
927                 if (par.getParamValue("caption").empty())
928                         listings_label_.clear();
929                 else {
930                         Counters & counters = buffer.params().getTextClass().counters();
931                         docstring const cnt = from_ascii("listing");
932                         if (counters.hasCounter(cnt)) {
933                                 counters.step(cnt);
934                                 listings_label_ = buffer.B_("Program Listing ") + convert<docstring>(counters.value(cnt));
935                         } else
936                                 listings_label_ = buffer.B_("Program Listing");
937                 }
938         }
939 }
940
941
942 string const InsetIncludeMailer::name_("include");
943
944 InsetIncludeMailer::InsetIncludeMailer(InsetInclude & inset)
945         : inset_(inset)
946 {}
947
948
949 string const InsetIncludeMailer::inset2string(Buffer const &) const
950 {
951         return params2string(inset_.params());
952 }
953
954
955 void InsetIncludeMailer::string2params(string const & in,
956                                        InsetCommandParams & params)
957 {
958         params.clear();
959         if (in.empty())
960                 return;
961
962         istringstream data(in);
963         Lexer lex(0,0);
964         lex.setStream(data);
965
966         string name;
967         lex >> name;
968         if (!lex || name != name_)
969                 return print_mailer_error("InsetIncludeMailer", in, 1, name_);
970
971         // This is part of the inset proper that is usually swallowed
972         // by Text::readInset
973         string id;
974         lex >> id;
975         if (!lex || id != "Include")
976                 return print_mailer_error("InsetIncludeMailer", in, 2, "Include");
977
978         InsetInclude inset(params);
979         inset.read(lex);
980         params = inset.params();
981 }
982
983
984 string const
985 InsetIncludeMailer::params2string(InsetCommandParams const & params)
986 {
987         InsetInclude inset(params);
988         ostringstream data;
989         data << name_ << ' ';
990         inset.write(data);
991         data << "\\end_inset\n";
992         return data.str();
993 }
994
995
996 } // namespace lyx