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 "DocIterator.h"
17 #include "support/FileName.h"
18 #include "support/limited_stack.h"
19 #include "support/types.h"
20 #include "support/docstring.h"
21 #include "support/docstream.h"
23 #include <boost/scoped_ptr.hpp>
24 #include <boost/signal.hpp>
50 class ParConstIterator;
53 class StableDocIterator;
60 /** The buffer object.
61 * This is the buffer object. It contains all the informations about
62 * a document loaded into LyX.
63 * The buffer object owns the Text (wrapped in an InsetText), which
64 * contains the individual paragraphs of the document.
67 * I am not sure if the class is complete or
68 * minimal, probably not.
69 * \author Lars Gullik Bjønnes
73 /// What type of log will \c getLogName() return?
75 latexlog, ///< LaTeX log
76 buildlog ///< Literate build log
79 /// Result of \c readFile()
81 failure, ///< The file could not be read
82 success, ///< The file could not be read
83 wrongversion ///< The version of the file does not match ours
86 /// Method to check if a file is externally modified, used by
87 /// isExternallyModified()
89 * timestamp is fast but inaccurate. For example, the granularity
90 * of timestamp on a FAT filesystem is 2 second. Also, various operations
91 * may touch the timestamp of a file even when its content is unchanged.
93 * checksum is accurate but slow, which can be a problem when it is
94 * frequently used, or used for a large file on a slow (network) file
98 checksum_method, ///< Use file check sum
99 timestamp_method, ///< Use timestamp, and checksum if timestamp has changed
104 \param b optional \c false by default
106 explicit Buffer(std::string const & file, bool b = false);
111 /** High-level interface to buffer functionality.
112 This function parses a command string and executes it
114 bool dispatch(std::string const & command, bool * result = 0);
116 /// Maybe we know the function already by number...
117 bool dispatch(FuncRequest const & func, bool * result = 0);
119 /// Load the autosaved file.
120 void loadAutoSaveFile();
122 /// read a new document from a string
123 bool readString(std::string const &);
125 bool readFile(support::FileName const & filename);
127 /// read the header, returns number of unknown tokens
128 int readHeader(Lexer & lex);
130 /** Reads a file without header.
131 \param par if != 0 insert the file.
132 \return \c false if file is not completely read.
134 bool readDocument(Lexer &);
137 void insertStringAsLines(ParagraphList & plist,
138 pit_type &, pos_type &,
139 Font const &, docstring const &, bool);
141 ParIterator getParFromID(int id) const;
142 /// do we have a paragraph with this id?
143 bool hasParWithID(int id) const;
145 /// This signal is emitted when the buffer is changed.
146 boost::signal<void()> changed;
147 /// This signal is emitted when the buffer structure is changed.
148 boost::signal<void()> structureChanged;
149 /// This signal is emitted when some parsing error shows up.
150 boost::signal<void(std::string)> errors;
151 /// This signal is emitted when some message shows up.
152 boost::signal<void(docstring)> message;
153 /// This signal is emitted when the buffer busy status change.
154 boost::signal<void(bool)> busy;
155 /// This signal is emitted when the buffer readonly status change.
156 boost::signal<void(bool)> readonly;
157 /// Update window titles of all users.
158 boost::signal<void()> updateTitles;
159 /// Reset autosave timers for all users.
160 boost::signal<void()> resetAutosaveTimers;
161 /// This signal is emitting if the buffer is being closed.
162 boost::signal<void()> closing;
166 Takes care of auto-save files and backup file if requested.
167 Returns \c true if the save is successful, \c false otherwise.
171 /// Write document to stream. Returns \c false if unsuccesful.
172 bool write(std::ostream &) const;
173 /// Write file. Returns \c false if unsuccesful.
174 bool writeFile(support::FileName const &) const;
176 /// Just a wrapper for writeLaTeXSource, first creating the ofstream.
177 bool makeLaTeXFile(support::FileName const & filename,
178 std::string const & original_path,
179 OutputParams const &,
180 bool output_preamble = true,
181 bool output_body = true);
182 /** Export the buffer to LaTeX.
183 If \p os is a file stream, and params().inputenc is "auto" or
184 "default", and the buffer contains text in different languages
185 with more than one encoding, then this method will change the
186 encoding associated to \p os. Therefore you must not call this
187 method with a string stream if the output is supposed to go to a
190 ofs.open("test.tex");
191 writeLaTeXSource(ofs, ...);
193 \endcode is NOT equivalent to \code
194 odocstringstream oss;
195 writeLaTeXSource(oss, ...);
197 ofs.open("test.tex");
202 void writeLaTeXSource(odocstream & os,
203 std::string const & original_path,
204 OutputParams const &,
205 bool output_preamble = true,
206 bool output_body = true);
208 void makeDocBookFile(support::FileName const & filename,
209 OutputParams const & runparams_in,
210 bool only_body = false);
212 void writeDocBookSource(odocstream & os, std::string const & filename,
213 OutputParams const & runparams_in,
214 bool only_body = false);
215 /// returns the main language for the buffer (document)
216 Language const * getLanguage() const;
217 /// get l10n translated to the buffers language
218 docstring const B_(std::string const & l10n) const;
222 /// return true if the main lyx file does not need saving
223 bool isClean() const;
225 bool isBakClean() const;
227 bool isDepClean(std::string const & name) const;
229 /// whether or not disk file has been externally modified
230 bool isExternallyModified(CheckMethod method) const;
232 /// mark the main lyx file as not needing saving
233 void markClean() const;
239 void markDepClean(std::string const & name);
242 void setUnnamed(bool flag = true);
245 bool isUnnamed() const;
247 /// Mark this buffer as dirty.
250 /// Returns the buffer's filename. It is always an absolute path.
251 std::string const fileName() const;
253 /// Returns the the path where the buffer lives.
254 /// It is always an absolute path.
255 std::string const & filePath() const;
257 /** A transformed version of the file name, adequate for LaTeX.
258 \param no_path optional if \c true then the path is stripped.
260 std::string const getLatexName(bool no_path = true) const;
262 /// Get thee name and type of the log.
263 std::pair<LogType, std::string> const getLogName() const;
265 /// Change name of buffer. Updates "read-only" flag.
266 void setFileName(std::string const & newfile);
268 /// Name of the document's parent
269 void setParentName(std::string const &);
271 /** Get the document's master (or \c this if this is not a
274 Buffer const * getMasterBuffer() const;
275 /** Get the document's master (or \c this if this is not a
278 Buffer * getMasterBuffer();
280 /// Is buffer read-only?
281 bool isReadonly() const;
283 /// Set buffer read-only flag
284 void setReadonly(bool flag = true);
286 /// returns \c true if the buffer contains a LaTeX document
287 bool isLatex() const;
288 /// returns \c true if the buffer contains a DocBook document
289 bool isDocBook() const;
290 /// returns \c true if the buffer contains a Wed document
291 bool isLiterate() const;
293 /** Validate a buffer for LaTeX.
294 This validates the buffer, and returns a struct for use by
295 #makeLaTeX# and others. Its main use is to figure out what
296 commands and packages need to be included in the LaTeX file.
297 It (should) also check that the needed constructs are there
298 (i.e. that the \refs points to coresponding \labels). It
299 should perhaps inset "error" insets to help the user correct
302 void validate(LaTeXFeatures &) const;
304 /// Update the cache with all bibfiles in use (including bibfiles
305 /// of loaded child documents).
306 void updateBibfilesCache();
307 /// Return the cache with all bibfiles in use (including bibfiles
308 /// of loaded child documents).
309 std::vector<support::FileName> const & getBibfilesCache() const;
311 void getLabelList(std::vector<docstring> &) const;
314 void changeLanguage(Language const * from, Language const * to);
317 bool isMultiLingual() const;
319 /// Does this mean that this is buffer local?
320 limited_stack<Undo> & undostack();
321 limited_stack<Undo> const & undostack() const;
323 /// Does this mean that this is buffer local?
324 limited_stack<Undo> & redostack();
325 limited_stack<Undo> const & redostack() const;
328 BufferParams & params();
329 BufferParams const & params() const;
331 /** The list of paragraphs.
332 This is a linked list of paragraph, this list holds the
333 whole contents of the document.
335 ParagraphList & paragraphs();
336 ParagraphList const & paragraphs() const;
338 /// LyX version control object.
340 LyXVC const & lyxvc() const;
342 /// Where to put temporary files.
343 std::string const & temppath() const;
345 /// Used when typesetting to place errorboxes.
347 TexRow const & texrow() const;
350 ParIterator par_iterator_begin();
352 ParConstIterator par_iterator_begin() const;
354 ParIterator par_iterator_end();
356 ParConstIterator par_iterator_end() const;
358 /** \returns true only when the file is fully loaded.
359 * Used to prevent the premature generation of previews
360 * and by the citation inset.
362 bool fully_loaded() const;
363 /// Set by buffer_funcs' newFile.
364 void fully_loaded(bool);
366 /// Our main text (inside the top InsetText)
369 /// Our top InsetText!
370 Inset & inset() const;
378 bool hasMacro(docstring const & name) const;
380 MacroData const & getMacro(docstring const & name) const;
382 void insertMacro(docstring const & name, MacroData const & data);
385 void saveCursor(StableDocIterator cursor, StableDocIterator anchor);
387 StableDocIterator getCursor() const { return cursor_; }
389 StableDocIterator getAnchor() const { return anchor_; }
391 void changeRefsIfUnique(docstring const & from, docstring const & to,
393 /// get source code (latex/docbook) for some paragraphs, or all paragraphs
394 /// including preamble
395 void getSourceCode(odocstream & os, pit_type par_begin, pit_type par_end, bool full_source);
397 /// errorLists_ accessors.
399 ErrorList const & errorList(std::string const & type) const;
400 ErrorList & errorList(std::string const & type);
404 TocBackend & tocBackend();
405 TocBackend const & tocBackend() const;
409 /** Inserts a file into a document
410 \return \c false if method fails.
412 ReadStatus readFile(Lexer &, support::FileName const & filename,
413 bool fromString = false);
415 /// Use the Pimpl idiom to hide the internals.
417 /// The pointer never changes although *pimpl_'s contents may.
418 boost::scoped_ptr<Impl> const pimpl_;
420 /// Save the cursor Position on Buffer switch
421 /// this would not be needed if every Buffer would have
422 /// it's BufferView, this should be FIXED in future.
423 StableDocIterator cursor_;
424 StableDocIterator anchor_;
425 /// A cache for the bibfiles (including bibfiles of loaded child
426 /// documents), needed for appropriate update of natbib labels.
427 mutable std::vector<support::FileName> bibfilesCache_;