4 * This file is part of LyX, the document processor.
5 * Licence details can be found in the file COPYING.
7 * \author Asger Alstrup
8 * \author Lars Gullik Bjønnes
10 * \author André Pönitz
11 * \author Jürgen Vigna
13 * Full author contact details are available in file CREDITS.
20 #include "InsetList.h"
21 #include "lyxlayout_ptr_fwd.h"
22 #include "RowList_fwd.h"
24 #include "insets/insetbase.h" // only for InsetBase::Code
26 #include "support/types.h"
28 #include <boost/assert.hpp>
44 class ParagraphParameters;
48 /// A Paragraph holds all text, attributes and insets in a text paragraph
53 /// Note that this is 1 right now to avoid
54 /// crashes where getChar() is called wrongly
55 /// (returning 0) - if this was 0, then we'd
56 /// try getInset() and crash. We should fix
61 typedef char value_type;
63 typedef lyx::depth_type depth_type;
65 typedef std::vector<value_type> TextContainer;
70 Paragraph(Paragraph const &);
72 Paragraph & operator=(Paragraph const &);
80 Language const * getParLanguage(BufferParams const &) const;
82 bool isRightToLeftPar(BufferParams const &) const;
84 void changeLanguage(BufferParams const & bparams,
85 Language const * from, Language const * to);
87 bool isMultiLingual(BufferParams const &) const;
90 std::string const asString(Buffer const &,
91 OutputParams const & runparams,
94 std::string const asString(Buffer const &, bool label) const;
96 std::string const Paragraph::asString(Buffer const & buffer,
101 std::string const asString(Buffer const &,
102 OutputParams const & runparams,
108 void write(Buffer const &, std::ostream &, BufferParams const &,
109 depth_type & depth) const;
111 void validate(LaTeXFeatures &) const;
114 int startTeXParParams(BufferParams const &, std::ostream &, bool) const;
117 int endTeXParParams(BufferParams const &, std::ostream &, bool) const;
121 bool simpleTeXOnePar(Buffer const &, BufferParams const &,
122 LyXFont const & outerfont, std::ostream &,
123 TexRow & texrow, OutputParams const &) const;
125 /// Writes to stream the content of the paragraph for linuxdoc
126 void simpleLinuxDocOnePar(Buffer const & buf,
128 LyXFont const & outerfont,
129 OutputParams const & runparams,
130 lyx::depth_type depth) const;
132 /// Can we drop the standard paragraph wrapper?
133 bool Paragraph::emptyTag() const;
135 /// Get the id of the paragraph, usefull for docbook and linuxdoc
136 std::string getID() const;
138 // Get the first word of a paragraph, return the position where it left
139 lyx::pos_type getFirstWord(Buffer const & buf,
141 OutputParams const & runparams) const;
143 /// Writes to stream the docbook representation
144 void simpleDocBookOnePar(Buffer const & buf,
146 OutputParams const & runparams,
147 LyXFont const & outerfont,
148 lyx::pos_type initial = 0) const;
151 bool hasSameLayout(Paragraph const & par) const;
154 void makeSameLayout(Paragraph const & par);
157 void setInsetOwner(UpdatableInset * inset);
159 UpdatableInset * inInset() const;
161 InsetBase::Code ownerCode() const;
163 bool autoBreakRows() const;
165 bool forceDefaultParagraphs() const;
168 lyx::pos_type size() const { return text_.size(); }
170 bool empty() const { return text_.empty(); }
172 void setContentsFromPar(Paragraph const & par);
174 void clearContents();
177 LyXLayout_ptr const & layout() const;
179 void layout(LyXLayout_ptr const & new_layout);
181 /// This is the item depth, only used by enumerate and itemize
182 signed char itemdepth;
185 InsetBibitem * bibitem() const; // ale970302
187 /// initialise tracking for this par
188 void trackChanges(Change::Type = Change::UNCHANGED);
191 void untrackChanges();
193 /// set entire paragraph to new text for change tracking
196 /// look up change type at given pos
197 Change::Type lookupChange(lyx::pos_type pos) const;
199 /// look up change at given pos
200 Change const lookupChangeFull(lyx::pos_type pos) const;
202 /// is there a change within the given range ?
203 bool isChanged(lyx::pos_type start, lyx::pos_type end) const;
205 /// is there a non-addition in this range ?
206 bool isChangeEdited(lyx::pos_type start, lyx::pos_type end) const;
208 /// set change at pos
209 void setChange(lyx::pos_type pos, Change::Type type);
212 void acceptChange(lyx::pos_type start, lyx::pos_type end);
215 void rejectChange(lyx::pos_type start, lyx::pos_type end);
217 /// mark whole par as erased
220 /// Paragraphs can contain "manual labels", for example, Description
221 /// environment. The text for this user-editable label is stored in
222 /// the paragraph alongside the text of the rest of the paragraph
223 /// (the body). This function returns the starting position of the
224 /// body of the text in the paragraph.
225 lyx::pos_type beginOfBody() const;
226 /// recompute this value
227 void setBeginOfBody();
230 std::string const & getLabelstring() const;
232 /// the next two functions are for the manual labels
233 std::string const getLabelWidthString() const;
235 void setLabelWidthString(std::string const & s);
237 char getAlign() const;
238 /// The nesting depth of a paragraph
239 depth_type getDepth() const;
240 /// The maximal possible depth of a paragraph after this one
241 depth_type getMaxDepthAfter() const;
243 void applyLayout(LyXLayout_ptr const & new_layout);
246 void eraseIntern(lyx::pos_type pos);
247 /// erase the char at the given position
248 bool erase(lyx::pos_type pos);
249 /// erase the given range. Returns the number of chars actually erased
250 int erase(lyx::pos_type start, lyx::pos_type end);
252 /** Get uninstantiated font setting. Returns the difference
253 between the characters font and the layoutfont.
254 This is what is stored in the fonttable
257 getFontSettings(BufferParams const &, lyx::pos_type pos) const;
259 LyXFont const getFirstFontSettings() const;
261 /** Get fully instantiated font. If pos == -1, use the layout
262 font attached to this paragraph.
263 If pos == -2, use the label font of the layout attached here.
264 In all cases, the font is instantiated, i.e. does not have any
265 attributes with values LyXFont::INHERIT, LyXFont::IGNORE or
268 LyXFont const getFont(BufferParams const &, lyx::pos_type pos,
269 LyXFont const & outerfont) const;
270 LyXFont const getLayoutFont(BufferParams const &,
271 LyXFont const & outerfont) const;
272 LyXFont const getLabelFont(BufferParams const &,
273 LyXFont const & outerfont) const;
275 * The font returned by the above functions is the same in a
276 * span of characters. This method will return the last position
277 * in the paragraph for which that font is the same.
278 * This can be used to avoid unnecessary calls to getFont.
280 lyx::pos_type getEndPosOfFontSpan(lyx::pos_type pos) const;
282 /// this is a bottleneck.
283 value_type getChar(lyx::pos_type pos) const
285 BOOST_ASSERT(pos >= 0);
286 BOOST_ASSERT(pos < int(text_.size()));
290 value_type getUChar(BufferParams const &, lyx::pos_type pos) const;
291 /// The position must already exist.
292 void setChar(lyx::pos_type pos, value_type c);
293 /// pos <= size() (there is a dummy font change at the end of each par)
294 void setFont(lyx::pos_type pos, LyXFont const & font);
295 /// Returns the height of the highest font in range
296 LyXFont_size highestFontInRange(lyx::pos_type startpos,
297 lyx::pos_type endpos,
298 LyXFont_size def_size) const;
300 void insert(lyx::pos_type pos, std::string const & str,
301 LyXFont const & font);
303 void insertChar(lyx::pos_type pos, value_type c,
304 Change change = Change(Change::INSERTED));
306 void insertChar(lyx::pos_type pos, value_type c,
307 LyXFont const &, Change change = Change(Change::INSERTED));
309 bool checkInsertChar(LyXFont &);
311 void insertInset(lyx::pos_type pos, InsetBase * inset,
312 Change change = Change(Change::INSERTED));
314 void insertInset(lyx::pos_type pos, InsetBase * inset,
315 LyXFont const &, Change change = Change(Change::INSERTED));
317 bool insetAllowed(InsetOld_code code);
319 InsetBase * getInset(lyx::pos_type pos);
321 InsetBase const * getInset(lyx::pos_type pos) const;
324 bool isHfill(lyx::pos_type pos) const;
325 /// hinted by profiler
326 bool isInset(lyx::pos_type pos) const { return getChar(pos) == META_INSET; }
328 bool isNewline(lyx::pos_type pos) const;
330 bool isSeparator(lyx::pos_type pos) const;
332 bool isLineSeparator(lyx::pos_type pos) const;
334 bool isKomma(lyx::pos_type pos) const;
335 /// Used by the spellchecker
336 bool isLetter(lyx::pos_type pos) const;
338 bool isWord(lyx::pos_type pos) const;
340 /// returns -1 if inset not found
341 int getPositionOfInset(InsetBase const * inset) const;
344 int stripLeadingSpaces();
346 /// return true if we allow multiple spaces
347 bool isFreeSpacing() const;
349 /// return true if we allow this par to stay empty
350 bool allowEmpty() const;
352 unsigned char transformChar(unsigned char c, lyx::pos_type pos) const;
354 ParagraphParameters & params();
356 ParagraphParameters const & params() const;
359 RowList::iterator getRow(lyx::pos_type pos);
361 RowList::const_iterator getRow(lyx::pos_type pos) const;
363 size_t row(lyx::pos_type pos) const;
369 mutable RowList rows;
370 /// last draw y position (baseline of top row)
372 /// total height of paragraph
374 /// total width of paragraph, may differ from workwidth
379 LyXLayout_ptr layout_;
380 /// keeping this here instead of in the pimpl makes LyX >10% faster
381 // for average tasks as buffer loading/switching etc.
384 lyx::pos_type begin_of_body_;
388 friend struct Paragraph::Pimpl;
395 inline bool isInsertedText(Paragraph const & par, lyx::pos_type pos)
397 return par.lookupChange(pos) == Change::INSERTED;
401 inline bool isDeletedText(Paragraph const & par, lyx::pos_type pos)
403 return par.lookupChange(pos) == Change::DELETED;
406 #endif // PARAGRAPH_H