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"
38 class ParagraphParameters;
42 /// A Paragraph holds all text, attributes and insets in a text paragraph
47 /// Note that this is 1 right now to avoid
48 /// crashes where getChar() is called wrongly
49 /// (returning 0) - if this was 0, then we'd
50 /// try getInset() and crash. We should fix
55 typedef char value_type;
57 typedef lyx::depth_type depth_type;
59 typedef std::vector<value_type> TextContainer;
65 Paragraph(Paragraph const &);
67 void operator=(Paragraph const &);
68 /// the destructor removes the new paragraph from the list
72 Language const * getParLanguage(BufferParams const &) const;
74 bool isRightToLeftPar(BufferParams const &) const;
76 void changeLanguage(BufferParams const & bparams,
77 Language const * from, Language const * to);
79 bool isMultiLingual(BufferParams const &);
82 std::string const asString(Buffer const &, bool label) const;
84 std::string const asString(Buffer const &, lyx::pos_type beg, lyx::pos_type end,
88 void write(Buffer const &, std::ostream &, BufferParams const &,
89 depth_type & depth) const;
91 void validate(LaTeXFeatures &) const;
93 /// return the unique ID of this paragraph
95 /// Set the Id of this paragraph.
99 int startTeXParParams(BufferParams const &, std::ostream &, bool) const;
102 int endTeXParParams(BufferParams const &, std::ostream &, bool) const;
106 bool simpleTeXOnePar(Buffer const &, BufferParams const &,
107 LyXFont const & outerfont, std::ostream &,
108 TexRow & texrow, LatexRunParams const &);
111 bool hasSameLayout(Paragraph const & par) const;
114 void makeSameLayout(Paragraph const & par);
117 UpdatableInset * inInset() const;
119 void setInsetOwner(UpdatableInset * inset);
121 void deleteInsetsLyXText(BufferView *);
124 lyx::pos_type size() const { return text_.size(); }
126 bool empty() const { return text_.empty(); }
128 void setContentsFromPar(Paragraph const & par);
130 void clearContents();
133 LyXLayout_ptr const & layout() const;
135 void layout(LyXLayout_ptr const & new_layout);
144 InsetBibitem * bibitem() const; // ale970302
146 /// initialise tracking for this par
147 void trackChanges(Change::Type = Change::UNCHANGED);
150 void untrackChanges();
152 /// set entire paragraph to new text for change tracking
155 /// look up change type at given pos
156 Change::Type lookupChange(lyx::pos_type pos) const;
158 /// look up change at given pos
159 Change const lookupChangeFull(lyx::pos_type pos) const;
161 /// is there a change within the given range ?
162 bool isChanged(lyx::pos_type start, lyx::pos_type end) const;
164 /// is there a non-addition in this range ?
165 bool isChangeEdited(lyx::pos_type start, lyx::pos_type end) const;
167 /// set change at pos
168 void setChange(lyx::pos_type pos, Change::Type type);
171 void acceptChange(lyx::pos_type start, lyx::pos_type end);
174 void rejectChange(lyx::pos_type start, lyx::pos_type end);
176 /// mark whole par as erased
179 /// Paragraphs can contain "manual labels", for example, Description
180 /// environment. The text for this user-editable label is stored in
181 /// the paragraph alongside the text of the rest of the paragraph
182 /// (the body). This function returns the starting position of the
183 /// body of the text in the paragraph.
184 int beginningOfBody() const;
187 std::string const & getLabelstring() const;
189 /// the next two functions are for the manual labels
190 std::string const getLabelWidthString() const;
192 void setLabelWidthString(std::string const & s);
194 char getAlign() const;
195 /// The nesting depth of a paragraph
196 depth_type getDepth() const;
197 /// The maximal possible depth of a paragraph after this one
198 depth_type getMaxDepthAfter() const;
200 void applyLayout(LyXLayout_ptr const & new_layout);
203 void eraseIntern(lyx::pos_type pos);
204 /// erase the char at the given position
205 bool erase(lyx::pos_type pos);
206 /// erase the given range. Returns the number of chars actually erased
207 int erase(lyx::pos_type start, lyx::pos_type end);
209 /** Get uninstantiated font setting. Returns the difference
210 between the characters font and the layoutfont.
211 This is what is stored in the fonttable
214 getFontSettings(BufferParams const &, lyx::pos_type pos) const;
216 LyXFont const getFirstFontSettings() const;
218 /** Get fully instantiated font. If pos == -1, use the layout
219 font attached to this paragraph.
220 If pos == -2, use the label font of the layout attached here.
221 In all cases, the font is instantiated, i.e. does not have any
222 attributes with values LyXFont::INHERIT, LyXFont::IGNORE or
225 LyXFont const getFont(BufferParams const &, lyx::pos_type pos,
226 LyXFont const & outerfont) const;
227 LyXFont const getLayoutFont(BufferParams const &,
228 LyXFont const & outerfont) const;
229 LyXFont const getLabelFont(BufferParams const &,
230 LyXFont const & outerfont) const;
232 * The font returned by the above functions is the same in a
233 * span of characters. This method will return the last position
234 * in the paragraph for which that font is the same.
235 * This can be used to avoid unnecessary calls to getFont.
237 lyx::pos_type getEndPosOfFontSpan(lyx::pos_type pos) const;
239 value_type getChar(lyx::pos_type pos) const;
241 value_type getUChar(BufferParams const &, lyx::pos_type pos) const;
242 /// The position must already exist.
243 void setChar(lyx::pos_type pos, value_type c);
244 /// pos <= size() (there is a dummy font change at the end of each par)
245 void setFont(lyx::pos_type pos, LyXFont const & font);
246 /// Returns the height of the highest font in range
247 LyXFont_size highestFontInRange(lyx::pos_type startpos,
248 lyx::pos_type endpos,
249 LyXFont_size def_size) const;
251 void insertChar(lyx::pos_type pos, value_type c);
253 void insertChar(lyx::pos_type pos, value_type c, LyXFont const &, Change change = Change(Change::INSERTED));
255 bool checkInsertChar(LyXFont &);
257 void insertInset(lyx::pos_type pos, InsetOld * inset);
259 void insertInset(lyx::pos_type pos, InsetOld * inset, LyXFont const &, Change change = Change(Change::INSERTED));
261 bool insetAllowed(InsetOld_code code);
263 InsetOld * getInset(lyx::pos_type pos);
265 InsetOld const * getInset(lyx::pos_type pos) const;
268 bool isHfill(lyx::pos_type pos) const;
270 bool isInset(lyx::pos_type pos) const;
272 bool isNewline(lyx::pos_type pos) const;
274 bool isSeparator(lyx::pos_type pos) const;
276 bool isLineSeparator(lyx::pos_type pos) const;
278 bool isKomma(lyx::pos_type pos) const;
279 /// Used by the spellchecker
280 bool isLetter(lyx::pos_type pos) const;
282 bool isWord(lyx::pos_type pos) const;
284 /// returns -1 if inset not found
285 int getPositionOfInset(InsetOld const * inset) const;
288 int stripLeadingSpaces();
290 /// return true if we allow multiple spaces
291 bool isFreeSpacing() const;
293 /// return true if we allow this par to stay empty
294 bool allowEmpty() const;
297 ParagraphParameters & params();
299 ParagraphParameters const & params() const;
304 mutable RowList rows;
305 /// last draw y position (baseline of top row)
310 LyXLayout_ptr layout_;
311 /// keeping this here instead of in the pimpl makes LyX >10% faster
312 // for average tasks as buffer loading/switching etc.
317 friend struct Paragraph::Pimpl;
324 inline bool isInsertedText(Paragraph const & par, lyx::pos_type pos)
326 return par.lookupChange(pos) == Change::INSERTED;
330 inline bool isDeletedText(Paragraph const & par, lyx::pos_type pos)
332 return par.lookupChange(pos) == Change::DELETED;
335 #endif // PARAGRAPH_H