4 * This file is part of LyX, the document processor.
5 * Licence details can be found in the file COPYING.
7 * \author Lars Gullik Bjønnes
9 * Full author contact details are available in file CREDITS.
15 #include "OutputEnums.h"
17 #include "insets/InsetCode.h"
19 #include "support/strfwd.h"
20 #include "support/types.h"
54 class ParConstIterator;
64 class GuiBufferDelegate;
65 class WorkAreaManager;
75 typedef std::list<Buffer *> ListOfBuffers;
78 /** The buffer object.
79 * This is the buffer object. It contains all the informations about
80 * a document loaded into LyX.
81 * The buffer object owns the Text (wrapped in an InsetText), which
82 * contains the individual paragraphs of the document.
85 * I am not sure if the class is complete or
86 * minimal, probably not.
87 * \author Lars Gullik Bjønnes
91 /// What type of log will \c getLogName() return?
93 latexlog, ///< LaTeX log
94 buildlog ///< Literate build log
97 /// Result of \c readFile()
107 ReadEmergencyFailure,
120 /// Method to check if a file is externally modified, used by
121 /// isExternallyModified()
123 * timestamp is fast but inaccurate. For example, the granularity
124 * of timestamp on a FAT filesystem is 2 second. Also, various operations
125 * may touch the timestamp of a file even when its content is unchanged.
127 * checksum is accurate but slow, which can be a problem when it is
128 * frequently used, or used for a large file on a slow (network) file
131 * FIXME: replace this method with support/FileMonitor.
134 checksum_method, ///< Use file checksum
135 timestamp_method, ///< Use timestamp, and checksum if timestamp has changed
145 explicit Buffer(std::string const & file, bool readonly = false,
146 Buffer const * cloned_buffer = 0);
152 Buffer * clone() const;
154 bool isClone() const;
156 /** High-level interface to buffer functionality.
157 This function parses a command string and executes it.
159 void dispatch(std::string const & command, DispatchResult & result);
161 /// Maybe we know the function already by number...
162 void dispatch(FuncRequest const & func, DispatchResult & result);
164 /// Can this function be exectued?
165 /// \return true if we made a decision
166 bool getStatus(FuncRequest const & cmd, FuncStatus & flag);
169 DocIterator getParFromID(int id) const;
170 /// do we have a paragraph with this id?
171 bool hasParWithID(int id) const;
174 frontend::WorkAreaManager & workAreaManager() const;
177 Takes care of auto-save files and backup file if requested.
178 Returns \c true if the save is successful, \c false otherwise.
181 /// Renames and saves the buffer
182 bool saveAs(support::FileName const & fn);
184 /// Write document to stream. Returns \c false if unsuccesful.
185 bool write(std::ostream &) const;
186 /// Write file. Returns \c false if unsuccesful.
187 bool writeFile(support::FileName const &) const;
189 /// \name Functions involved in reading files/strings.
191 /// Loads the LyX file into the buffer. This function
192 /// tries to extract the file from version control if it
193 /// cannot be found. If it can be found, it will try to
194 /// read an emergency save file or an autosave file.
195 /// \sa loadThisLyXFile
196 ReadStatus loadLyXFile();
197 /// Loads the LyX file \c fn into the buffer. If you want
198 /// to check for files in a version control container,
199 /// emergency or autosave files, one should use \c loadLyXFile.
201 ReadStatus loadThisLyXFile(support::FileName const & fn);
202 /// read a new document from a string
203 bool readString(std::string const &);
204 /// Reloads the LyX file
206 //FIXME: The following function should be private
208 /// read the header, returns number of unknown tokens
209 int readHeader(Lexer & lex);
212 /// save timestamp and checksum of the given file.
213 void saveCheckSum() const;
215 ReadStatus readFile(support::FileName const & fn);
216 /// Reads a file without header.
217 /// \param par if != 0 insert the file.
218 /// \return \c true if file is not completely read.
219 bool readDocument(Lexer &);
220 /// Try to extract the file from a version control container
221 /// before reading if the file cannot be found. This is only
222 /// implemented for RCS.
223 /// \sa LyXVC::file_not_found_hook
224 ReadStatus extractFromVC();
225 /// Reads the first tag of a LyX File and
226 /// returns the file format number.
227 ReadStatus parseLyXFormat(Lexer & lex, support::FileName const & fn,
228 int & file_format) const;
229 /// Convert the LyX file to the LYX_FORMAT using
230 /// the lyx2lyx script and returns the filename
231 /// of the temporary file to be read
232 ReadStatus convertLyXFormat(support::FileName const & fn,
233 support::FileName & tmpfile, int from_format);
237 /// \name Functions involved in autosave and emergency files.
239 /// Save an autosave file to #filename.lyx#
240 bool autoSave() const;
241 /// save emergency file
242 /// \return a status message towards the user.
243 docstring emergencyWrite();
245 //FIXME:The following function should be private
248 void removeAutosaveFile() const;
251 /// Try to load an autosave file associated to \c fn.
252 ReadStatus loadAutosave();
253 /// Try to load an emergency file associated to \c fn.
254 ReadStatus loadEmergency();
255 /// Get the filename of the emergency file associated with the Buffer
256 support::FileName getEmergencyFileName() const;
257 /// Get the filename of the autosave file associated with the Buffer
258 support::FileName getAutosaveFileName() const;
260 void moveAutosaveFile(support::FileName const & old) const;
264 /// Fill in the ErrorList with the TeXErrors
265 void bufferErrors(TeXErrors const &, ErrorList &) const;
267 /// Just a wrapper for writeLaTeXSource, first creating the ofstream.
268 bool makeLaTeXFile(support::FileName const & filename,
269 std::string const & original_path,
270 OutputParams const &,
271 bool output_preamble = true,
272 bool output_body = true) const;
273 /** Export the buffer to LaTeX.
274 If \p os is a file stream, and params().inputenc is "auto" or
275 "default", and the buffer contains text in different languages
276 with more than one encoding, then this method will change the
277 encoding associated to \p os. Therefore you must not call this
278 method with a string stream if the output is supposed to go to a
281 ofs.open("test.tex");
282 writeLaTeXSource(ofs, ...);
284 \endcode is NOT equivalent to \code
285 odocstringstream oss;
286 writeLaTeXSource(oss, ...);
288 ofs.open("test.tex");
293 void writeLaTeXSource(odocstream & os,
294 std::string const & original_path,
295 OutputParams const &,
296 bool output_preamble = true,
297 bool output_body = true) const;
299 void makeDocBookFile(support::FileName const & filename,
300 OutputParams const & runparams_in,
301 bool only_body = false) const;
303 void writeDocBookSource(odocstream & os, std::string const & filename,
304 OutputParams const & runparams_in,
305 bool only_body = false) const;
307 void makeLyXHTMLFile(support::FileName const & filename,
308 OutputParams const & runparams_in,
309 bool only_body = false) const;
311 void writeLyXHTMLSource(odocstream & os,
312 OutputParams const & runparams_in,
313 bool only_body = false) const;
314 /// returns the main language for the buffer (document)
315 Language const * language() const;
316 /// get l10n translated to the buffers language
317 docstring const B_(std::string const & l10n) const;
321 /// return true if the main lyx file does not need saving
322 bool isClean() const;
324 bool isDepClean(std::string const & name) const;
326 /// whether or not disk file has been externally modified
327 bool isExternallyModified(CheckMethod method) const;
329 /// mark the main lyx file as not needing saving
330 void markClean() const;
333 void markDepClean(std::string const & name);
336 void setUnnamed(bool flag = true);
338 /// Whether or not a filename has been assigned to this buffer
339 bool isUnnamed() const;
341 /// Whether or not this buffer is internal.
343 /// An internal buffer does not contain a real document, but some auxiliary text segment.
344 /// It is not associated with a filename, it is never saved, thus it does not need to be
345 /// automatically saved, nor it needs to trigger any "do you want to save ?" question.
346 bool isInternal() const;
348 /// Mark this buffer as dirty.
351 /// Returns the buffer's filename. It is always an absolute path.
352 support::FileName fileName() const;
354 /// Returns the buffer's filename. It is always an absolute path.
355 std::string absFileName() const;
357 /// Returns the the path where the buffer lives.
358 /// It is always an absolute path.
359 std::string filePath() const;
361 /** A transformed version of the file name, adequate for LaTeX.
362 \param no_path optional if \c true then the path is stripped.
364 std::string latexName(bool no_path = true) const;
366 /// Get the name and type of the log.
367 std::string logName(LogType * type = 0) const;
369 /// Set document's parent Buffer.
370 void setParent(Buffer const *);
371 Buffer const * parent() const;
373 /** Get the document's master (or \c this if this is not a
376 Buffer const * masterBuffer() const;
378 /// \return true if \p child is a child of this \c Buffer.
379 bool isChild(Buffer * child) const;
381 /// \return true if this \c Buffer has children
382 bool hasChildren() const;
384 /// \return a list of the direct children of this Buffer.
385 /// this list has no duplicates and is in the order in which
386 /// the children appear.
387 ListOfBuffers getChildren() const;
389 /// \return a list of all descendents of this Buffer (children,
390 /// grandchildren, etc). this list has no duplicates and is in
391 /// the order in which the children appear.
392 ListOfBuffers getDescendents() const;
394 /// Collect all relative buffers, in the order in which they appear.
395 /// I.e., the "root" Buffer is first, then its first child, then any
396 /// of its children, etc. However, there are no duplicates in this
398 /// This is "stable", too, in the sense that it returns the same
399 /// thing from whichever Buffer it is called.
400 ListOfBuffers allRelatives() const;
402 /// Is buffer read-only?
403 bool isReadonly() const;
405 /// Set buffer read-only flag
406 void setReadonly(bool flag = true);
408 /// returns \c true if the buffer contains a LaTeX document
409 bool isLatex() const;
410 /// returns \c true if the buffer contains a DocBook document
411 bool isDocBook() const;
412 /// returns \c true if the buffer contains a Wed document
413 bool isLiterate() const;
415 /** Validate a buffer for LaTeX.
416 This validates the buffer, and returns a struct for use by
417 #makeLaTeX# and others. Its main use is to figure out what
418 commands and packages need to be included in the LaTeX file.
419 It (should) also check that the needed constructs are there
420 (i.e. that the \refs points to coresponding \labels). It
421 should perhaps inset "error" insets to help the user correct
424 void validate(LaTeXFeatures &) const;
426 /// Reference information is cached in the Buffer, so we do not
427 /// have to check or read things over and over.
429 /// There are two caches.
431 /// One is a cache of the BibTeX files from which reference info is
432 /// being gathered. This cache is PER BUFFER, and the cache for the
433 /// master essentially includes the cache for its children. This gets
434 /// invalidated when an InsetBibtex is created, deleted, or modified.
436 /// The other is a cache of the reference information itself. This
437 /// exists only in the master buffer, and when it needs to be updated,
438 /// the children add their information to the master's cache.
440 /// Calling this method invalidates the cache and so requires a
442 void invalidateBibinfoCache() const;
443 /// This invalidates the cache of files we need to check.
444 void invalidateBibfileCache() const;
445 /// Updates the cached bibliography information, checking first to see
446 /// whether the cache is valid. If so, we do nothing. If not, then we
447 /// reload all the BibTeX info.
448 /// Note that this operates on the master document.
449 /// Normally, this is done (more cheaply) in updateBuffer(), but there are
450 /// times when we need to force it to be done and don't need a full buffer
451 /// update. This is in GuiCitation and in changeRefsIfUnique() now.
452 void reloadBibInfoCache() const;
453 /// Was the cache valid the last time we checked?
454 bool isBibInfoCacheValid() const;
455 /// \return the bibliography information for this buffer's master,
456 /// or just for it, if it isn't a child.
457 BiblioInfo const & masterBibInfo() const;
458 /// collect bibliography info from the various insets in this buffer.
459 void collectBibKeys() const;
460 /// add some BiblioInfo to our cache
461 void addBiblioInfo(BiblioInfo const & bi) const;
462 /// add a single piece of bibliography info to our cache
463 void addBibTeXInfo(docstring const & key, BibTeXInfo const & bi) const;
465 void getLabelList(std::vector<docstring> &) const;
468 void changeLanguage(Language const * from, Language const * to);
471 bool isMultiLingual() const;
473 std::set<Language const *> getLanguages() const;
476 BufferParams & params();
477 BufferParams const & params() const;
479 /** The list of paragraphs.
480 This is a linked list of paragraph, this list holds the
481 whole contents of the document.
483 ParagraphList & paragraphs();
484 ParagraphList const & paragraphs() const;
486 /// LyX version control object.
488 LyXVC const & lyxvc() const;
490 /// Where to put temporary files.
491 std::string const temppath() const;
493 /// Used when typesetting to place errorboxes.
494 TexRow const & texrow() const;
498 ParIterator par_iterator_begin();
500 ParConstIterator par_iterator_begin() const;
502 ParIterator par_iterator_end();
504 ParConstIterator par_iterator_end() const;
506 // Position of the child buffer where it appears first in the master.
507 DocIterator firstChildPosition(Buffer const * child);
509 /** \returns true only when the file is fully loaded.
510 * Used to prevent the premature generation of previews
511 * and by the citation inset.
513 bool isFullyLoaded() const;
514 /// Set by buffer_funcs' newFile.
515 void setFullyLoaded(bool);
517 /// Update the LaTeX preview snippets associated with this buffer
518 void updatePreviews() const;
519 /// Remove any previewed LaTeX snippets associated with this buffer
520 void removePreviews() const;
522 /// Our main text (inside the top InsetText)
525 /// Our top InsetText
526 Inset & inset() const;
531 /// Collect macro definitions in paragraphs
532 void updateMacros() const;
533 /// Iterate through the whole buffer and try to resolve macros
534 void updateMacroInstances() const;
536 /// List macro names of this buffer, the parent and the children
537 void listMacroNames(MacroNameSet & macros) const;
538 /// Collect macros of the parent and its children in front of this buffer.
539 void listParentMacros(MacroSet & macros, LaTeXFeatures & features) const;
541 /// Return macro defined before pos (or in the master buffer)
542 MacroData const * getMacro(docstring const & name, DocIterator const & pos, bool global = true) const;
543 /// Return macro defined anywhere in the buffer (or in the master buffer)
544 MacroData const * getMacro(docstring const & name, bool global = true) const;
545 /// Return macro defined before the inclusion of the child
546 MacroData const * getMacro(docstring const & name, Buffer const & child, bool global = true) const;
548 /// Collect user macro names at loading time
549 typedef std::set<docstring> UserMacroSet;
550 UserMacroSet usermacros;
552 /// Replace the inset contents for insets which InsetCode is equal
553 /// to the passed \p inset_code.
554 void changeRefsIfUnique(docstring const & from, docstring const & to,
557 /// get source code (latex/docbook) for some paragraphs, or all paragraphs
558 /// including preamble
559 void getSourceCode(odocstream & os, pit_type par_begin, pit_type par_end,
560 bool full_source) const;
562 /// Access to error list.
563 /// This method is used only for GUI visualisation of Buffer related
564 /// errors (like parsing or LateX compilation). This method is const
565 /// because modifying the returned ErrorList does not touch the document
567 ErrorList & errorList(std::string const & type) const;
570 /// This is useful only for screen visualisation of the Buffer. This
571 /// method is const because modifying this backend does not touch
572 /// the document contents.
573 TocBackend & tocBackend() const;
578 /// This function is called when the buffer is changed.
579 void changed(bool update_metrics) const;
581 void setChild(DocIterator const & dit, Buffer * child);
583 void updateTocItem(std::string const &, DocIterator const &) const;
584 /// This function is called when the buffer structure is changed.
585 void structureChanged() const;
586 /// This function is called when some parsing error shows up.
587 void errors(std::string const & err, bool from_master = false) const;
588 /// This function is called when the buffer busy status change.
589 void setBusy(bool on) const;
590 /// Update window titles of all users.
591 void updateTitles() const;
592 /// Reset autosave timers for all users.
593 void resetAutosaveTimers() const;
595 void message(docstring const & msg) const;
598 void setGuiDelegate(frontend::GuiBufferDelegate * gui);
600 bool hasGuiDelegate() const;
604 /// return the format of the buffer on a string
605 std::string bufferFormat() const;
606 /// return the default output format of the current backend
607 std::string getDefaultOutputFormat() const;
610 bool doExport(std::string const & format, bool put_in_tempdir,
611 bool includeall, std::string & result_file) const;
613 bool doExport(std::string const & format, bool put_in_tempdir,
614 bool includeall = false) const;
616 bool preview(std::string const & format, bool includeall = false) const;
618 bool isExportable(std::string const & format) const;
620 std::vector<Format const *> exportableFormats(bool only_viewable) const;
622 bool isExportableFormat(std::string const & format) const;
623 /// mark the buffer as busy exporting something, or not
624 void setExportStatus(bool e) const;
626 bool isExporting() const;
629 typedef std::vector<std::pair<Inset *, ParIterator> > References;
630 References & references(docstring const & label);
631 References const & references(docstring const & label) const;
632 void clearReferenceCache() const;
633 void setInsetLabel(docstring const & label, InsetLabel const * il);
634 InsetLabel const * insetLabel(docstring const & label) const;
636 /// return a list of all used branches (also in children)
637 void getUsedBranches(std::list<docstring> &, bool const from_master = false) const;
639 /// sets the buffer_ member for every inset in this buffer.
640 // FIXME This really shouldn't be needed, but at the moment it's not
641 // clear how to do it just for the individual pieces we need.
642 void setBuffersForInsets() const;
643 /// Updates screen labels and some other information associated with
644 /// insets and paragraphs. Actually, it's more like a general "recurse
645 /// through the Buffer" routine, that visits all the insets and paragraphs.
646 void updateBuffer() const { updateBuffer(UpdateMaster, InternalUpdate); }
647 /// \param scope: whether to start with the master document or just
649 /// \param output: whether we are preparing for output.
650 void updateBuffer(UpdateScope scope, UpdateType utype) const;
652 void updateBuffer(ParIterator & parit, UpdateType utype) const;
654 /// Spellcheck starting from \p from.
655 /// \p from initial position, will then points to the next misspelled
657 /// \p to will points to the end of the next misspelled word.
658 /// \p word_lang will contain the found misspelled word.
659 /// \return progress if a new word was found.
660 int spellCheck(DocIterator & from, DocIterator & to,
661 WordLangTuple & word_lang, docstring_list & suggestions) const;
663 void checkChildBuffers();
666 /// Change name of buffer. Updates "read-only" flag.
667 void setFileName(support::FileName const & fname);
669 std::vector<std::string> backends() const;
671 void getLanguages(std::set<Language const *> &) const;
672 /// Checks whether any of the referenced bibfiles have changed since the
673 /// last time we loaded the cache. Note that this does NOT update the
674 /// cached information.
675 void checkIfBibInfoCacheIsValid() const;
676 /// Update the list of all bibfiles in use (including bibfiles
677 /// of loaded child documents).
678 void updateBibfilesCache(UpdateScope scope = UpdateMaster) const;
679 /// Return the list with all bibfiles in use (including bibfiles
680 /// of loaded child documents).
681 support::FileNameList const &
682 getBibfilesCache(UpdateScope scope = UpdateMaster) const;
684 void collectChildren(ListOfBuffers & children, bool grand_children) const;
687 /// Use the Pimpl idiom to hide the internals.
689 /// The pointer never changes although *pimpl_'s contents may.