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 "support/types.h"
39 class ParagraphParameters;
43 /// A Paragraph holds all text, attributes and insets in a text paragraph
48 /// Note that this is 1 right now to avoid
49 /// crashes where getChar() is called wrongly
50 /// (returning 0) - if this was 0, then we'd
51 /// try getInset() and crash. We should fix
56 typedef char value_type;
58 typedef lyx::depth_type depth_type;
60 typedef std::vector<value_type> TextContainer;
66 Paragraph(Paragraph const &);
68 void operator=(Paragraph const &);
69 /// the destructor removes the new paragraph from the list
76 Language const * getParLanguage(BufferParams const &) const;
78 bool isRightToLeftPar(BufferParams const &) const;
80 void changeLanguage(BufferParams const & bparams,
81 Language const * from, Language const * to);
83 bool isMultiLingual(BufferParams const &);
86 std::string const asString(Buffer const &, bool label) const;
88 std::string const asString(Buffer const &, lyx::pos_type beg, lyx::pos_type end,
92 void write(Buffer const &, std::ostream &, BufferParams const &,
93 depth_type & depth) const;
95 void validate(LaTeXFeatures &) const;
98 int startTeXParParams(BufferParams const &, std::ostream &, bool) const;
101 int endTeXParParams(BufferParams const &, std::ostream &, bool) const;
105 bool simpleTeXOnePar(Buffer const &, BufferParams const &,
106 LyXFont const & outerfont, std::ostream &,
107 TexRow & texrow, LatexRunParams const &);
110 void simpleLinuxDocOnePar(Buffer const & buf,
112 LyXFont const & outerfont,
113 lyx::depth_type depth) const;
116 void simpleDocBookOnePar(Buffer const & buf,
118 LyXFont const & outerfont,
120 lyx::depth_type depth) const;
123 bool hasSameLayout(Paragraph const & par) const;
126 void makeSameLayout(Paragraph const & par);
129 UpdatableInset * inInset() const;
131 void setInsetOwner(UpdatableInset * inset);
133 void deleteInsetsLyXText(BufferView *);
136 lyx::pos_type size() const { return text_.size(); }
138 bool empty() const { return text_.empty(); }
140 void setContentsFromPar(Paragraph const & par);
142 void clearContents();
145 LyXLayout_ptr const & layout() const;
147 void layout(LyXLayout_ptr const & new_layout);
149 /// This is the item depth, only used by enumerate and itemize
150 signed char itemdepth;
153 InsetBibitem * bibitem() const; // ale970302
155 /// initialise tracking for this par
156 void trackChanges(Change::Type = Change::UNCHANGED);
159 void untrackChanges();
161 /// set entire paragraph to new text for change tracking
164 /// look up change type at given pos
165 Change::Type lookupChange(lyx::pos_type pos) const;
167 /// look up change at given pos
168 Change const lookupChangeFull(lyx::pos_type pos) const;
170 /// is there a change within the given range ?
171 bool isChanged(lyx::pos_type start, lyx::pos_type end) const;
173 /// is there a non-addition in this range ?
174 bool isChangeEdited(lyx::pos_type start, lyx::pos_type end) const;
176 /// set change at pos
177 void setChange(lyx::pos_type pos, Change::Type type);
180 void acceptChange(lyx::pos_type start, lyx::pos_type end);
183 void rejectChange(lyx::pos_type start, lyx::pos_type end);
185 /// mark whole par as erased
188 /// Paragraphs can contain "manual labels", for example, Description
189 /// environment. The text for this user-editable label is stored in
190 /// the paragraph alongside the text of the rest of the paragraph
191 /// (the body). This function returns the starting position of the
192 /// body of the text in the paragraph.
193 int beginningOfBody() const;
196 std::string const & getLabelstring() const;
198 /// the next two functions are for the manual labels
199 std::string const getLabelWidthString() const;
201 void setLabelWidthString(std::string const & s);
203 char getAlign() const;
204 /// The nesting depth of a paragraph
205 depth_type getDepth() const;
206 /// The maximal possible depth of a paragraph after this one
207 depth_type getMaxDepthAfter() const;
209 void applyLayout(LyXLayout_ptr const & new_layout);
212 void eraseIntern(lyx::pos_type pos);
213 /// erase the char at the given position
214 bool erase(lyx::pos_type pos);
215 /// erase the given range. Returns the number of chars actually erased
216 int erase(lyx::pos_type start, lyx::pos_type end);
218 /** Get uninstantiated font setting. Returns the difference
219 between the characters font and the layoutfont.
220 This is what is stored in the fonttable
223 getFontSettings(BufferParams const &, lyx::pos_type pos) const;
225 LyXFont const getFirstFontSettings() const;
227 /** Get fully instantiated font. If pos == -1, use the layout
228 font attached to this paragraph.
229 If pos == -2, use the label font of the layout attached here.
230 In all cases, the font is instantiated, i.e. does not have any
231 attributes with values LyXFont::INHERIT, LyXFont::IGNORE or
234 LyXFont const getFont(BufferParams const &, lyx::pos_type pos,
235 LyXFont const & outerfont) const;
236 LyXFont const getLayoutFont(BufferParams const &,
237 LyXFont const & outerfont) const;
238 LyXFont const getLabelFont(BufferParams const &,
239 LyXFont const & outerfont) const;
241 * The font returned by the above functions is the same in a
242 * span of characters. This method will return the last position
243 * in the paragraph for which that font is the same.
244 * This can be used to avoid unnecessary calls to getFont.
246 lyx::pos_type getEndPosOfFontSpan(lyx::pos_type pos) const;
248 value_type getChar(lyx::pos_type pos) const;
250 value_type getUChar(BufferParams const &, lyx::pos_type pos) const;
251 /// The position must already exist.
252 void setChar(lyx::pos_type pos, value_type c);
253 /// pos <= size() (there is a dummy font change at the end of each par)
254 void setFont(lyx::pos_type pos, LyXFont const & font);
255 /// Returns the height of the highest font in range
256 LyXFont_size highestFontInRange(lyx::pos_type startpos,
257 lyx::pos_type endpos,
258 LyXFont_size def_size) const;
260 void insertChar(lyx::pos_type pos, value_type c);
262 void insertChar(lyx::pos_type pos, value_type c, LyXFont const &, Change change = Change(Change::INSERTED));
264 bool checkInsertChar(LyXFont &);
266 void insertInset(lyx::pos_type pos, InsetOld * inset);
268 void insertInset(lyx::pos_type pos, InsetOld * inset, LyXFont const &, Change change = Change(Change::INSERTED));
270 bool insetAllowed(InsetOld_code code);
272 InsetOld * getInset(lyx::pos_type pos);
274 InsetOld const * getInset(lyx::pos_type pos) const;
277 bool isHfill(lyx::pos_type pos) const;
279 bool isInset(lyx::pos_type pos) const;
281 bool isNewline(lyx::pos_type pos) const;
283 bool isSeparator(lyx::pos_type pos) const;
285 bool isLineSeparator(lyx::pos_type pos) const;
287 bool isKomma(lyx::pos_type pos) const;
288 /// Used by the spellchecker
289 bool isLetter(lyx::pos_type pos) const;
291 bool isWord(lyx::pos_type pos) const;
293 /// returns -1 if inset not found
294 int getPositionOfInset(InsetOld const * inset) const;
297 int stripLeadingSpaces();
299 /// return true if we allow multiple spaces
300 bool isFreeSpacing() const;
302 /// return true if we allow this par to stay empty
303 bool allowEmpty() const;
305 unsigned char transformChar(unsigned char c, lyx::pos_type pos) const;
307 ParagraphParameters & params();
309 ParagraphParameters const & params() const;
312 RowList::iterator getRow(lyx::pos_type pos);
318 mutable RowList rows;
319 /// last draw y position (baseline of top row)
321 /// total height of paragraph
323 /// total width of paragraph, may differ from workwidth
328 LyXLayout_ptr layout_;
329 /// keeping this here instead of in the pimpl makes LyX >10% faster
330 // for average tasks as buffer loading/switching etc.
335 friend struct Paragraph::Pimpl;
342 inline bool isInsertedText(Paragraph const & par, lyx::pos_type pos)
344 return par.lookupChange(pos) == Change::INSERTED;
348 inline bool isDeletedText(Paragraph const & par, lyx::pos_type pos)
350 return par.lookupChange(pos) == Change::DELETED;
353 #endif // PARAGRAPH_H