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 bool hasSameLayout(Paragraph const & par) const;
113 void makeSameLayout(Paragraph const & par);
116 UpdatableInset * inInset() const;
118 void setInsetOwner(UpdatableInset * inset);
120 void deleteInsetsLyXText(BufferView *);
123 lyx::pos_type size() const { return text_.size(); }
125 bool empty() const { return text_.empty(); }
127 void setContentsFromPar(Paragraph const & par);
129 void clearContents();
132 LyXLayout_ptr const & layout() const;
134 void layout(LyXLayout_ptr const & new_layout);
136 /// This is the item depth, only used by enumerate and itemize
137 signed char itemdepth;
140 InsetBibitem * bibitem() const; // ale970302
142 /// initialise tracking for this par
143 void trackChanges(Change::Type = Change::UNCHANGED);
146 void untrackChanges();
148 /// set entire paragraph to new text for change tracking
151 /// look up change type at given pos
152 Change::Type lookupChange(lyx::pos_type pos) const;
154 /// look up change at given pos
155 Change const lookupChangeFull(lyx::pos_type pos) const;
157 /// is there a change within the given range ?
158 bool isChanged(lyx::pos_type start, lyx::pos_type end) const;
160 /// is there a non-addition in this range ?
161 bool isChangeEdited(lyx::pos_type start, lyx::pos_type end) const;
163 /// set change at pos
164 void setChange(lyx::pos_type pos, Change::Type type);
167 void acceptChange(lyx::pos_type start, lyx::pos_type end);
170 void rejectChange(lyx::pos_type start, lyx::pos_type end);
172 /// mark whole par as erased
175 /// Paragraphs can contain "manual labels", for example, Description
176 /// environment. The text for this user-editable label is stored in
177 /// the paragraph alongside the text of the rest of the paragraph
178 /// (the body). This function returns the starting position of the
179 /// body of the text in the paragraph.
180 int beginningOfBody() const;
183 std::string const & getLabelstring() const;
185 /// the next two functions are for the manual labels
186 std::string const getLabelWidthString() const;
188 void setLabelWidthString(std::string const & s);
190 char getAlign() const;
191 /// The nesting depth of a paragraph
192 depth_type getDepth() const;
193 /// The maximal possible depth of a paragraph after this one
194 depth_type getMaxDepthAfter() const;
196 void applyLayout(LyXLayout_ptr const & new_layout);
199 void eraseIntern(lyx::pos_type pos);
200 /// erase the char at the given position
201 bool erase(lyx::pos_type pos);
202 /// erase the given range. Returns the number of chars actually erased
203 int erase(lyx::pos_type start, lyx::pos_type end);
205 /** Get uninstantiated font setting. Returns the difference
206 between the characters font and the layoutfont.
207 This is what is stored in the fonttable
210 getFontSettings(BufferParams const &, lyx::pos_type pos) const;
212 LyXFont const getFirstFontSettings() const;
214 /** Get fully instantiated font. If pos == -1, use the layout
215 font attached to this paragraph.
216 If pos == -2, use the label font of the layout attached here.
217 In all cases, the font is instantiated, i.e. does not have any
218 attributes with values LyXFont::INHERIT, LyXFont::IGNORE or
221 LyXFont const getFont(BufferParams const &, lyx::pos_type pos,
222 LyXFont const & outerfont) const;
223 LyXFont const getLayoutFont(BufferParams const &,
224 LyXFont const & outerfont) const;
225 LyXFont const getLabelFont(BufferParams const &,
226 LyXFont const & outerfont) const;
228 * The font returned by the above functions is the same in a
229 * span of characters. This method will return the last position
230 * in the paragraph for which that font is the same.
231 * This can be used to avoid unnecessary calls to getFont.
233 lyx::pos_type getEndPosOfFontSpan(lyx::pos_type pos) const;
235 value_type getChar(lyx::pos_type pos) const;
237 value_type getUChar(BufferParams const &, lyx::pos_type pos) const;
238 /// The position must already exist.
239 void setChar(lyx::pos_type pos, value_type c);
240 /// pos <= size() (there is a dummy font change at the end of each par)
241 void setFont(lyx::pos_type pos, LyXFont const & font);
242 /// Returns the height of the highest font in range
243 LyXFont_size highestFontInRange(lyx::pos_type startpos,
244 lyx::pos_type endpos,
245 LyXFont_size def_size) const;
247 void insertChar(lyx::pos_type pos, value_type c);
249 void insertChar(lyx::pos_type pos, value_type c, LyXFont const &, Change change = Change(Change::INSERTED));
251 bool checkInsertChar(LyXFont &);
253 void insertInset(lyx::pos_type pos, InsetOld * inset);
255 void insertInset(lyx::pos_type pos, InsetOld * inset, LyXFont const &, Change change = Change(Change::INSERTED));
257 bool insetAllowed(InsetOld_code code);
259 InsetOld * getInset(lyx::pos_type pos);
261 InsetOld const * getInset(lyx::pos_type pos) const;
264 bool isHfill(lyx::pos_type pos) const;
266 bool isInset(lyx::pos_type pos) const;
268 bool isNewline(lyx::pos_type pos) const;
270 bool isSeparator(lyx::pos_type pos) const;
272 bool isLineSeparator(lyx::pos_type pos) const;
274 bool isKomma(lyx::pos_type pos) const;
275 /// Used by the spellchecker
276 bool isLetter(lyx::pos_type pos) const;
278 bool isWord(lyx::pos_type pos) const;
280 /// returns -1 if inset not found
281 int getPositionOfInset(InsetOld const * inset) const;
284 int stripLeadingSpaces();
286 /// return true if we allow multiple spaces
287 bool isFreeSpacing() const;
289 /// return true if we allow this par to stay empty
290 bool allowEmpty() const;
292 unsigned char transformChar(unsigned char c, lyx::pos_type pos) const;
294 ParagraphParameters & params();
296 ParagraphParameters const & params() const;
299 RowList::iterator getRow(lyx::pos_type pos);
305 mutable RowList rows;
306 /// last draw y position (baseline of top row)
308 /// total height of paragraph
310 /// total width of paragraph, may differ from workwidth
315 LyXLayout_ptr layout_;
316 /// keeping this here instead of in the pimpl makes LyX >10% faster
317 // for average tasks as buffer loading/switching etc.
322 friend struct Paragraph::Pimpl;
329 inline bool isInsertedText(Paragraph const & par, lyx::pos_type pos)
331 return par.lookupChange(pos) == Change::INSERTED;
335 inline bool isDeletedText(Paragraph const & par, lyx::pos_type pos)
337 return par.lookupChange(pos) == Change::DELETED;
340 #endif // PARAGRAPH_H