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"
16 #include "OutputParams.h"
18 #include "insets/InsetCode.h"
20 #include "support/strfwd.h"
21 #include "support/types.h"
56 class ParConstIterator;
66 class GuiBufferDelegate;
67 class WorkAreaManager;
81 typedef std::list<Buffer *> ListOfBuffers;
82 /// a list of Buffers we cloned
83 typedef std::set<Buffer *> CloneList;
86 /** The buffer object.
87 * This is the buffer object. It contains all the information about
88 * a document loaded into LyX.
89 * The buffer object owns the Text (wrapped in an InsetText), which
90 * contains the individual paragraphs of the document.
93 * I am not sure if the class is complete or
94 * minimal, probably not.
95 * \author Lars Gullik Bjønnes
98 class MarkAsExporting;
102 /// What type of log will \c getLogName() return?
104 latexlog, ///< LaTeX log
105 buildlog ///< Literate build log
108 /// Result of \c readFile()
118 ReadEmergencyFailure,
135 ExportNoPathToFormat,
136 ExportTexPathHasSpaces,
137 ExportConverterError,
143 /// Method to check if a file is externally modified, used by
144 /// isExternallyModified()
146 * timestamp is fast but inaccurate. For example, the granularity
147 * of timestamp on a FAT filesystem is 2 seconds. Also, various operations
148 * may touch the timestamp of a file even when its content is unchanged.
150 * checksum is accurate but slow, which can be a problem when it is
151 * frequently used, or used for a large file on a slow (network) file
154 * FIXME: replace this method with support/FileMonitor.
157 checksum_method, ///< Use file checksum
158 timestamp_method ///< Use timestamp, and checksum if timestamp has changed
168 explicit Buffer(std::string const & file, bool readonly = false,
169 Buffer const * cloned_buffer = 0);
174 /// Clones the entire structure of which this Buffer is part, starting
175 /// with the master and cloning all the children, too.
176 Buffer * cloneFromMaster() const;
177 /// Just clones this single Buffer. For autosave.
178 Buffer * cloneBufferOnly() const;
180 bool isClone() const;
182 /** High-level interface to buffer functionality.
183 This function parses a command string and executes it.
185 void dispatch(std::string const & command, DispatchResult & result);
187 /// Maybe we know the function already by number...
188 void dispatch(FuncRequest const & func, DispatchResult & result);
190 /// Can this function be exectued?
191 /// \return true if we made a decision
192 bool getStatus(FuncRequest const & cmd, FuncStatus & flag);
195 DocIterator getParFromID(int id) const;
196 /// do we have a paragraph with this id?
197 bool hasParWithID(int id) const;
200 frontend::WorkAreaManager & workAreaManager() const;
203 Takes care of auto-save files and backup file if requested.
204 Returns \c true if the save is successful, \c false otherwise.
207 /// Renames and saves the buffer
208 bool saveAs(support::FileName const & fn);
210 /// Write document to stream. Returns \c false if unsuccessful.
211 bool write(std::ostream &) const;
212 /// Write file. Returns \c false if unsuccessful.
213 bool writeFile(support::FileName const &) const;
215 /// \name Functions involved in reading files/strings.
217 /// Loads the LyX file into the buffer. This function
218 /// tries to extract the file from version control if it
219 /// cannot be found. If it can be found, it will try to
220 /// read an emergency save file or an autosave file.
221 /// \sa loadThisLyXFile
222 ReadStatus loadLyXFile();
223 /// Loads the LyX file \c fn into the buffer. If you want
224 /// to check for files in a version control container,
225 /// emergency or autosave files, one should use \c loadLyXFile.
227 ReadStatus loadThisLyXFile(support::FileName const & fn);
228 /// import a new document from a string
229 bool importString(std::string const &, docstring const &, ErrorList &);
230 /// import a new file
231 bool importFile(std::string const &, support::FileName const &, ErrorList &);
232 /// read a new document from a string
233 bool readString(std::string const &);
234 /// Reloads the LyX file
235 /// \param clearUndo if false, leave alone the undo stack.
236 ReadStatus reload(bool clearUndo = true);
237 //FIXME: The following function should be private
239 /// read the header, returns number of unknown tokens
240 int readHeader(Lexer & lex);
244 typedef std::map<Buffer const *, Buffer *> BufferMap;
246 void cloneWithChildren(BufferMap &, CloneList *) const;
247 /// save timestamp and checksum of the given file.
248 void saveCheckSum() const;
250 ReadStatus readFile(support::FileName const & fn);
251 /// Reads a file without header.
252 /// \param par if != 0 insert the file.
253 /// \return \c true if file is not completely read.
254 bool readDocument(Lexer &);
255 /// Try to extract the file from a version control container
256 /// before reading if the file cannot be found.
257 /// \sa LyXVC::file_not_found_hook
258 ReadStatus extractFromVC();
259 /// Reads the first tag of a LyX File and
260 /// returns the file format number.
261 ReadStatus parseLyXFormat(Lexer & lex, support::FileName const & fn,
262 int & file_format) const;
263 /// Convert the LyX file to the LYX_FORMAT using
264 /// the lyx2lyx script and returns the filename
265 /// of the temporary file to be read
266 ReadStatus convertLyXFormat(support::FileName const & fn,
267 support::FileName & tmpfile, int from_format);
271 /// \name Functions involved in autosave and emergency files.
273 /// Save an autosave file to #filename.lyx#
274 bool autoSave() const;
275 /// save emergency file
276 /// \return a status message towards the user.
277 docstring emergencyWrite();
279 //FIXME:The following function should be private
282 void removeAutosaveFile() const;
285 /// Try to load an autosave file associated to \c fn.
286 ReadStatus loadAutosave();
287 /// Try to load an emergency file associated to \c fn.
288 ReadStatus loadEmergency();
289 /// Get the filename of the emergency file associated with the Buffer
290 support::FileName getEmergencyFileName() const;
291 /// Get the filename of the autosave file associated with the Buffer
292 support::FileName getAutosaveFileName() const;
294 void moveAutosaveFile(support::FileName const & old) const;
298 /// Fill in the ErrorList with the TeXErrors
299 void bufferErrors(TeXErrors const &, ErrorList &) const;
309 /// Just a wrapper for writeLaTeXSource, first creating the ofstream.
310 bool makeLaTeXFile(support::FileName const & filename,
311 std::string const & original_path,
312 OutputParams const &,
313 OutputWhat output = FullSource) const;
314 /** Export the buffer to LaTeX.
315 If \p os is a file stream, and params().inputenc is "auto" or
316 "default", and the buffer contains text in different languages
317 with more than one encoding, then this method will change the
318 encoding associated to \p os. Therefore you must not call this
319 method with a string stream if the output is supposed to go to a
322 otexstream os(ofs, texrow);
323 ofs.open("test.tex");
324 writeLaTeXSource(os, ...);
326 \endcode is NOT equivalent to \code
327 odocstringstream oss;
328 otexstream os(oss, texrow);
329 writeLaTeXSource(os, ...);
331 ofs.open("test.tex");
336 void writeLaTeXSource(otexstream & os,
337 std::string const & original_path,
338 OutputParams const &,
339 OutputWhat output = FullSource) const;
341 void makeDocBookFile(support::FileName const & filename,
342 OutputParams const & runparams_in,
343 OutputWhat output = FullSource) const;
345 void writeDocBookSource(odocstream & os, std::string const & filename,
346 OutputParams const & runparams_in,
347 OutputWhat output = FullSource) const;
349 void makeLyXHTMLFile(support::FileName const & filename,
350 OutputParams const & runparams_in) const;
352 void writeLyXHTMLSource(odocstream & os,
353 OutputParams const & runparams_in,
354 OutputWhat output = FullSource) const;
355 /// returns the main language for the buffer (document)
356 Language const * language() const;
357 /// get l10n translated to the buffers language
358 docstring const B_(std::string const & l10n) const;
362 /// return true if the main lyx file does not need saving
363 bool isClean() const;
365 bool isDepClean(std::string const & name) const;
367 /// whether or not disk file has been externally modified
368 bool isExternallyModified(CheckMethod method) const;
370 /// mark the main lyx file as not needing saving
371 void markClean() const;
374 void markDepClean(std::string const & name);
377 void setUnnamed(bool flag = true);
379 /// Whether or not a filename has been assigned to this buffer
380 bool isUnnamed() const;
382 /// Whether or not this buffer is internal.
384 /// An internal buffer does not contain a real document, but some auxiliary text segment.
385 /// It is not associated with a filename, it is never saved, thus it does not need to be
386 /// automatically saved, nor it needs to trigger any "do you want to save ?" question.
387 bool isInternal() const;
389 void setInternal(bool flag);
391 /// Mark this buffer as dirty.
394 /// Returns the buffer's filename. It is always an absolute path.
395 support::FileName fileName() const;
397 /// Returns the buffer's filename. It is always an absolute path.
398 std::string absFileName() const;
400 /// Returns the path where the buffer lives.
401 /// It is always an absolute path.
402 std::string filePath() const;
404 /** A transformed version of the file name, adequate for LaTeX.
405 \param no_path optional if \c true then the path is stripped.
407 std::string latexName(bool no_path = true) const;
409 /// Get the name and type of the log.
410 std::string logName(LogType * type = 0) const;
412 /// Set document's parent Buffer.
413 void setParent(Buffer const *);
414 Buffer const * parent() const;
416 /** Get the document's master (or \c this if this is not a
419 Buffer const * masterBuffer() const;
421 /// \return true if \p child is a child of this \c Buffer.
422 bool isChild(Buffer * child) const;
424 /// \return true if this \c Buffer has children
425 bool hasChildren() const;
427 /// \return a list of the direct children of this Buffer.
428 /// this list has no duplicates and is in the order in which
429 /// the children appear.
430 ListOfBuffers getChildren() const;
432 /// \return a list of all descendents of this Buffer (children,
433 /// grandchildren, etc). this list has no duplicates and is in
434 /// the order in which the children appear.
435 ListOfBuffers getDescendents() const;
437 /// Collect all relative buffers, in the order in which they appear.
438 /// I.e., the "root" Buffer is first, then its first child, then any
439 /// of its children, etc. However, there are no duplicates in this
441 /// This is "stable", too, in the sense that it returns the same
442 /// thing from whichever Buffer it is called.
443 ListOfBuffers allRelatives() const;
445 /// Is buffer read-only?
446 bool isReadonly() const;
448 /// Set buffer read-only flag
449 void setReadonly(bool flag = true);
451 /** Validate a buffer for LaTeX.
452 This validates the buffer, and returns a struct for use by
453 #makeLaTeX# and others. Its main use is to figure out what
454 commands and packages need to be included in the LaTeX file.
455 It (should) also check that the needed constructs are there
456 (i.e. that the \refs points to coresponding \labels). It
457 should perhaps inset "error" insets to help the user correct
460 void validate(LaTeXFeatures &) const;
462 /// Reference information is cached in the Buffer, so we do not
463 /// have to check or read things over and over.
465 /// There are two caches.
467 /// One is a cache of the BibTeX files from which reference info is
468 /// being gathered. This cache is PER BUFFER, and the cache for the
469 /// master essentially includes the cache for its children. This gets
470 /// invalidated when an InsetBibtex is created, deleted, or modified.
472 /// The other is a cache of the reference information itself. This
473 /// exists only in the master buffer, and when it needs to be updated,
474 /// the children add their information to the master's cache.
476 /// Calling this method invalidates the cache and so requires a
478 void invalidateBibinfoCache() const;
479 /// This invalidates the cache of files we need to check.
480 void invalidateBibfileCache() const;
481 /// Updates the cached bibliography information, checking first to see
482 /// whether the cache is valid. If so, we do nothing. If not, then we
483 /// reload all the BibTeX info.
484 /// Note that this operates on the master document.
485 void reloadBibInfoCache() const;
486 /// \return the bibliography information for this buffer's master,
487 /// or just for it, if it isn't a child.
488 BiblioInfo const & masterBibInfo() const;
489 /// collect bibliography info from the various insets in this buffer.
490 void collectBibKeys() const;
491 /// add some BiblioInfo to our cache
492 void addBiblioInfo(BiblioInfo const & bi) const;
493 /// add a single piece of bibliography info to our cache
494 void addBibTeXInfo(docstring const & key, BibTeXInfo const & bi) const;
496 void makeCitationLabels() const;
498 bool citeLabelsValid() const;
500 void getLabelList(std::vector<docstring> &) const;
502 /// This removes the .aux and .bbl files from the temp dir.
503 void removeBiblioTempFiles() const;
506 void changeLanguage(Language const * from, Language const * to);
509 bool isMultiLingual() const;
511 std::set<Language const *> getLanguages() const;
514 BufferParams & params();
515 BufferParams const & params() const;
517 /** The list of paragraphs.
518 This is a linked list of paragraph, this list holds the
519 whole contents of the document.
521 ParagraphList & paragraphs();
522 ParagraphList const & paragraphs() const;
524 /// LyX version control object.
526 LyXVC const & lyxvc() const;
528 /// Where to put temporary files.
529 std::string const temppath() const;
531 /// Used when typesetting to place errorboxes.
532 TexRow const & texrow() const;
536 ParIterator par_iterator_begin();
538 ParConstIterator par_iterator_begin() const;
540 ParIterator par_iterator_end();
542 ParConstIterator par_iterator_end() const;
544 // Position of the child buffer where it appears first in the master.
545 DocIterator firstChildPosition(Buffer const * child);
547 /** \returns true only when the file is fully loaded.
548 * Used to prevent the premature generation of previews
549 * and by the citation inset.
551 bool isFullyLoaded() const;
552 /// Set by buffer_funcs' newFile.
553 void setFullyLoaded(bool);
555 /// FIXME: Needed by RenderPreview.
556 graphics::PreviewLoader * loader() const;
557 /// Update the LaTeX preview snippets associated with this buffer
558 void updatePreviews() const;
559 /// Remove any previewed LaTeX snippets associated with this buffer
560 void removePreviews() const;
562 /// Our main text (inside the top InsetText)
565 /// Our top InsetText
566 Inset & inset() const;
571 /// Collect macro definitions in paragraphs
572 void updateMacros() const;
573 /// Iterate through the whole buffer and try to resolve macros
574 void updateMacroInstances(UpdateType) const;
576 /// List macro names of this buffer, the parent and the children
577 void listMacroNames(MacroNameSet & macros) const;
578 /// Collect macros of the parent and its children in front of this buffer.
579 void listParentMacros(MacroSet & macros, LaTeXFeatures & features) const;
581 /// Return macro defined before pos (or in the master buffer)
582 MacroData const * getMacro(docstring const & name, DocIterator const & pos, bool global = true) const;
583 /// Return macro defined anywhere in the buffer (or in the master buffer)
584 MacroData const * getMacro(docstring const & name, bool global = true) const;
585 /// Return macro defined before the inclusion of the child
586 MacroData const * getMacro(docstring const & name, Buffer const & child, bool global = true) const;
588 /// Collect user macro names at loading time
589 typedef std::set<docstring> UserMacroSet;
590 mutable UserMacroSet usermacros;
592 /// Replace the inset contents for insets which InsetCode is equal
593 /// to the passed \p inset_code.
594 void changeRefsIfUnique(docstring const & from, docstring const & to);
596 /// get source code (latex/docbook) for some paragraphs, or all paragraphs
597 /// including preamble
598 void getSourceCode(odocstream & os, std::string const format,
599 pit_type par_begin, pit_type par_end, OutputWhat output,
602 /// Access to error list.
603 /// This method is used only for GUI visualisation of Buffer related
604 /// errors (like parsing or LateX compilation). This method is const
605 /// because modifying the returned ErrorList does not touch the document
607 ErrorList & errorList(std::string const & type) const;
610 /// This is useful only for screen visualisation of the Buffer. This
611 /// method is const because modifying this backend does not touch
612 /// the document contents.
613 TocBackend & tocBackend() const;
618 /// This function is called when the buffer is changed.
619 void changed(bool update_metrics) const;
621 void setChild(DocIterator const & dit, Buffer * child);
623 void updateTocItem(std::string const &, DocIterator const &) const;
624 /// This function is called when the buffer structure is changed.
625 void structureChanged() const;
626 /// This function is called when some parsing error shows up.
627 void errors(std::string const & err, bool from_master = false) const;
628 /// This function is called when the buffer busy status change.
629 void setBusy(bool on) const;
630 /// Update window titles of all users.
631 void updateTitles() const;
632 /// Reset autosave timers for all users.
633 void resetAutosaveTimers() const;
635 void message(docstring const & msg) const;
638 void setGuiDelegate(frontend::GuiBufferDelegate * gui);
640 bool hasGuiDelegate() const;
643 ExportStatus doExport(std::string const & target, bool put_in_tempdir) const;
645 ExportStatus doExport(std::string const & target, bool put_in_tempdir,
646 std::string & result_file) const;
648 ExportStatus preview(std::string const & format) const;
651 /// target is a format name optionally followed by a space
652 /// and a destination file-name
653 ExportStatus doExport(std::string const & target, bool put_in_tempdir,
654 bool includeall, std::string & result_file) const;
656 ExportStatus doExport(std::string const & target, bool put_in_tempdir,
657 bool includeall) const;
659 ExportStatus preview(std::string const & format, bool includeall = false) const;
661 void setMathFlavor(OutputParams & op) const;
665 bool isExporting() const;
668 typedef std::vector<std::pair<Inset *, ParIterator> > References;
670 References const & references(docstring const & label) const;
672 void addReference(docstring const & label, Inset * inset, ParIterator it);
674 void clearReferenceCache() const;
676 void setInsetLabel(docstring const & label, InsetLabel const * il);
678 InsetLabel const * insetLabel(docstring const & label) const;
680 /// return a list of all used branches (also in children)
681 void getUsedBranches(std::list<docstring> &, bool const from_master = false) const;
683 /// sets the buffer_ member for every inset in this buffer.
684 // FIXME This really shouldn't be needed, but at the moment it's not
685 // clear how to do it just for the individual pieces we need.
686 void setBuffersForInsets() const;
687 /// Updates screen labels and some other information associated with
688 /// insets and paragraphs. Actually, it's more like a general "recurse
689 /// through the Buffer" routine, that visits all the insets and paragraphs.
690 void updateBuffer() const { updateBuffer(UpdateMaster, InternalUpdate); }
691 /// \param scope: whether to start with the master document or just
693 /// \param output: whether we are preparing for output.
694 void updateBuffer(UpdateScope scope, UpdateType utype) const;
696 void updateBuffer(ParIterator & parit, UpdateType utype) const;
698 /// Spellcheck starting from \p from.
699 /// \p from initial position, will then points to the next misspelled
701 /// \p to will points to the end of the next misspelled word.
702 /// \p word_lang will contain the found misspelled word.
703 /// \return progress if a new word was found.
704 int spellCheck(DocIterator & from, DocIterator & to,
705 WordLangTuple & word_lang, docstring_list & suggestions) const;
707 void checkChildBuffers();
709 void checkMasterBuffer();
711 /// compute statistics between \p from and \p to
712 /// \p from initial position
713 /// \p to points to the end position
714 /// \p skipNoOutput if notes etc. should be ignored
715 void updateStatistics(DocIterator & from, DocIterator & to,
716 bool skipNoOutput = true) const;
717 /// statistics accessor functions
718 int wordCount() const;
719 int charCount(bool with_blanks) const;
722 friend class MarkAsExporting;
723 /// mark the buffer as busy exporting something, or not
724 void setExportStatus(bool e) const;
727 References & getReferenceCache(docstring const & label);
728 /// Change name of buffer. Updates "read-only" flag.
729 void setFileName(support::FileName const & fname);
731 void getLanguages(std::set<Language const *> &) const;
732 /// Checks whether any of the referenced bibfiles have changed since the
733 /// last time we loaded the cache. Note that this does NOT update the
734 /// cached information.
735 void checkIfBibInfoCacheIsValid() const;
736 /// Update the list of all bibfiles in use (including bibfiles
737 /// of loaded child documents).
738 void updateBibfilesCache(UpdateScope scope = UpdateMaster) const;
739 /// Return the list with all bibfiles in use (including bibfiles
740 /// of loaded child documents).
741 support::FileNameList const &
742 getBibfilesCache(UpdateScope scope = UpdateMaster) const;
744 void collectChildren(ListOfBuffers & children, bool grand_children) const;
747 Buffer(Buffer const &);
748 void operator=(Buffer const &);
750 /// Use the Pimpl idiom to hide the internals.
752 /// The pointer never changes although *pimpl_'s contents may.
757 /// Helper class, to guarantee that the export status
758 /// gets reset properly. To use, simply create a local variable:
759 /// MarkAsExporting mex(bufptr);
760 /// and leave the rest to us.
761 class MarkAsExporting {
763 MarkAsExporting(Buffer const * buf) : buf_(buf)
765 buf_->setExportStatus(true);
769 buf_->setExportStatus(false);
772 Buffer const * const buf_;