4 * This file is part of LyX, the document processor.
5 * Licence details can be found in the file COPYING.
8 * \author Lars Gullik Bjønnes
11 * Full author contact details are available in file CREDITS.
17 #include "bufferview_funcs.h"
19 #include "dispatchresult.h"
22 #include "lyxlayout_ptr_fwd.h"
23 #include "ParagraphList_fwd.h"
24 #include "RowList_fwd.h"
48 /// This class encapsulates the main text data and operations in LyX
52 LyXText(BufferView *, bool ininset);
54 void init(BufferView *);
56 /// update y coordinate cache of all paragraphs
57 void updateParPositions();
59 LyXFont getFont(ParagraphList::iterator pit, lyx::pos_type pos) const;
61 LyXFont getLayoutFont(ParagraphList::iterator pit) const;
63 LyXFont getLabelFont(ParagraphList::iterator pit) const;
65 void setCharFont(ParagraphList::iterator pit,
66 lyx::pos_type pos, LyXFont const & font);
67 void setCharFont(ParagraphList::iterator pit,
69 LyXFont const & font, bool toggleall);
71 /// what you expect when pressing <enter> at cursor position
72 void breakParagraph(ParagraphList & paragraphs, char keep_layout = 0);
74 /** set layout over selection and make a total rebreak of
77 ParagraphList::iterator
78 setLayout(ParagraphList::iterator start,
79 ParagraphList::iterator end,
80 std::string const & layout);
82 void setLayout(std::string const & layout);
84 /// Increase or decrease the nesting depth of the selected paragraph(s)
85 void changeDepth(bv_funcs::DEPTH_CHANGE type);
87 /// Returns whether something would be changed by changeDepth
88 bool changeDepthAllowed(bv_funcs::DEPTH_CHANGE type);
90 /// get the depth at current cursor position
93 /** set font over selection and make a total rebreak of those
95 toggleall defaults to false.
97 void setFont(LyXFont const &, bool toggleall = false);
99 /// rebreaks all paragaphs between the given pars.
100 void redoParagraphs(ParagraphList::iterator begin,
101 ParagraphList::iterator end);
102 /// rebreaks the given par
103 void redoParagraph(ParagraphList::iterator pit);
104 /// rebreaks the cursor par
105 void redoParagraph();
108 void toggleFree(LyXFont const &, bool toggleall = false);
111 std::string getStringToIndex();
113 /// insert a character at cursor position
114 void insertChar(char c);
115 /// insert an inset at cursor position
116 void insertInset(InsetBase * inset);
118 /// a full rebreak of the whole text
120 /// compute text metrics
121 void metrics(MetricsInfo & mi, Dimension & dim);
122 /// draw text (only used for insets)
123 void draw(PainterInfo & pi, int x, int y) const;
125 /// try to handle that request
126 DispatchResult dispatch(LCursor & cur, FuncRequest const & cmd);
127 /// access to out BufferView. This should go...
129 /// access to out BufferView. This should go...
130 BufferView * bv() const;
132 /// returns an iterator pointing to a cursor paragraph
133 ParagraphList::iterator getPar(CursorSlice const & cursor) const;
135 ParagraphList::iterator getPar(lyx::paroffset_type par) const;
137 int parOffset(ParagraphList::iterator pit) const;
139 ParagraphList::iterator cursorPar() const;
141 RowList::iterator cursorRow() const;
143 /** returns an iterator pointing to the row near the specified
144 * y-coordinate (relative to the whole text). y is set to the
145 * real beginning of this row
147 RowList::iterator getRowNearY(int y,
148 ParagraphList::iterator & pit) const;
150 /** returns the column near the specified x-coordinate of the row
151 x is set to the real beginning of this column
153 lyx::pos_type getColumnNearX(ParagraphList::iterator pit,
154 Row const & row, int & x, bool & boundary) const;
156 /** Find the word under \c from in the relative location
157 * defined by \c word_location.
158 * @param from return here the start of the word
159 * @param to return here the end of the word
161 void getWord(CursorSlice & from, CursorSlice & to, lyx::word_location const);
162 /// just selects the word the cursor is in
163 void selectWord(lyx::word_location loc);
164 /// returns the inset at cursor (if it exists), 0 otherwise
165 InsetBase * getInset() const;
167 /// accept selected change
170 /// reject selected change
174 void setCursor(ParagraphList::iterator pit, lyx::pos_type pos);
175 /// returns true if par was empty and was removed
176 bool setCursor(lyx::paroffset_type par, lyx::pos_type pos,
177 bool setfont = true, bool boundary = false);
179 void setCursor(CursorSlice &, lyx::paroffset_type par,
180 lyx::pos_type pos, bool boundary = false);
182 void setCursorIntern(lyx::paroffset_type par, lyx::pos_type pos,
183 bool setfont = true, bool boundary = false);
185 void setCurrentFont();
188 void recUndo(lyx::paroffset_type first, lyx::paroffset_type last) const;
190 void recUndo(lyx::paroffset_type first) const;
192 void setCursorFromCoordinates(int x, int y);
194 void setCursorFromCoordinates(CursorSlice &, int x, int y);
196 void edit(LCursor & cur, int x, int y);
198 void cursorUp(bool selecting = false);
200 void cursorDown(bool selecting = false);
202 bool cursorLeft(bool internal = true);
204 bool cursorRight(bool internal = true);
206 void cursorLeftOneWord();
208 void cursorRightOneWord();
210 void cursorUpParagraph();
212 void cursorDownParagraph();
218 void cursorPrevious();
230 bool selectWordWhenUnderCursor(lyx::word_location);
236 text_capitalization = 1,
240 /// Change the case of the word at cursor position.
241 void changeCase(TextCase action);
246 void cutSelection(bool doclear = true, bool realcut = true);
248 void copySelection();
250 void pasteSelection(size_t sel_index = 0);
252 /** the DTP switches for paragraphs. LyX will store the top settings
253 always in the first physical paragraph, the bottom settings in the
254 last. When a paragraph is broken, the top settings rest, the bottom
255 settings are given to the new one.
258 Spacing const & spacing,
260 std::string const & labelwidthstring,
263 /* these things are for search and replace */
266 * Sets the selection from the current cursor position to length
267 * characters to the right. No safety checks.
269 void setSelectionRange(lyx::pos_type length);
270 /** simple replacing. The font of the first selected character
273 void replaceSelectionWithString(std::string const & str);
275 /// needed to insert the selection
276 void insertStringAsLines(std::string const & str);
277 /// needed to insert the selection
278 void insertStringAsParagraphs(std::string const & str);
280 /// Find next inset of some specified type.
281 bool gotoNextInset(std::vector<InsetOld_code> const & codes,
282 std::string const & contents = std::string());
284 void gotoInset(std::vector<InsetOld_code> const & codes,
287 void gotoInset(InsetOld_code code, bool same_content);
289 /// current max text width
290 int textWidth() const;
292 /// updates all counters
293 void updateCounters();
294 /// Returns an inset if inset was hit, or 0 if not.
295 InsetBase * checkInsetHit(int x, int y);
298 int singleWidth(ParagraphList::iterator pit, lyx::pos_type pos) const;
300 int singleWidth(ParagraphList::iterator pit,
301 lyx::pos_type pos, char c, LyXFont const & Font) const;
303 /// return the color of the canvas
304 LColor_color backgroundColor() const;
307 * Returns the left beginning of the text.
308 * This information cannot be taken from the layout object, because
309 * in LaTeX the beginning of the text fits in some cases
310 * (for example sections) exactly the label-width.
312 int leftMargin(ParagraphList::iterator pit, lyx::pos_type pos) const;
313 int leftMargin(ParagraphList::iterator pit) const;
315 int rightMargin(Paragraph const & par) const;
317 /** this calculates the specified parameters. needed when setting
318 * the cursor and when creating a visible row */
319 void prepareToPrint(ParagraphList::iterator pit, Row & row) const;
321 /// access to our paragraphs
322 ParagraphList & paragraphs() const;
323 /// return true if this is owned by an inset.
324 bool isInInset() const;
325 /// the first of our paragraphs
326 ParagraphList::iterator firstPar() const;
327 /// the last of our paragraphs
328 ParagraphList::iterator lastPar() const;
329 /// one past the last of our paragraphs
330 ParagraphList::iterator endPar() const;
332 /// return first row of text
333 RowList::iterator firstRow() const;
334 /// return last row of text
335 RowList::iterator lastRow() const;
336 /// return row "behind" last row of text
337 RowList::iterator endRow() const;
338 /// return next row crossing paragraph boundaries
339 void nextRow(ParagraphList::iterator & pit,
340 RowList::iterator & rit) const;
341 /// return previous row crossing paragraph boundaries
342 void previousRow(ParagraphList::iterator & pit,
343 RowList::iterator & rit) const;
345 /// is this row the last in the text?
346 bool isLastRow(ParagraphList::iterator pit, Row const & row) const;
347 /// is this row the first in the text?
348 bool isFirstRow(ParagraphList::iterator pit, Row const & row) const;
351 std::string selectionAsString(Buffer const & buffer, bool label) const;
353 double spacing(Paragraph const &) const;
355 void cursorLeftOneWord(CursorSlice &);
357 void cursorRightOneWord(CursorSlice &);
360 DispatchResult moveRight();
362 DispatchResult moveLeft();
364 DispatchResult moveRightIntern(bool front,
365 bool activate_inset, bool selecting);
367 DispatchResult moveLeftIntern(bool front,
368 bool activate_inset, bool selecting);
370 DispatchResult moveUp();
372 DispatchResult moveDown();
374 bool checkAndActivateInset(bool front);
377 void write(Buffer const & buf, std::ostream & os) const;
378 /// returns whether we've seen our usual 'end' marker
379 bool read(Buffer const & buf, LyXLex & lex);
386 int cursorX(CursorSlice const & cursor) const;
388 int cursorY(CursorSlice const & cursor) const;
390 /// the topmost cursor slice
391 CursorSlice & cursor();
392 /// the topmost cursor slice
393 CursorSlice const & cursor() const;
394 /// access to the selection anchor
395 CursorSlice & anchor();
396 /// access to the selection anchor
397 CursorSlice const & anchor() const;
399 friend class LyXScreen;
408 /// the current font settings
409 LyXFont current_font;
411 LyXFont real_current_font;
412 /// our buffer's default layout font
413 LyXFont defaultfont_;
415 int background_color_;
417 /// only the top-level LyXText has this non-zero
418 BufferView * bv_owner;
425 ParagraphList paragraphs_;
427 /// absolute document pixel coordinates of this LyXText
431 /// our 'outermost' Font
436 /// return past-the-last paragraph influenced by a layout
438 ParagraphList::iterator undoSpan(ParagraphList::iterator pit);
440 /// rebreaks the given par
441 void redoParagraphInternal(ParagraphList::iterator pit);
442 /// used in setlayout
443 void makeFontEntriesLayoutSpecific(BufferParams const &, Paragraph & par);
445 /// Calculate and set the height of the row
446 void setHeightOfRow(ParagraphList::iterator, Row & row);
448 // fix the cursor `cur' after a characters has been deleted at `where'
449 // position. Called by deleteEmptyParagraphMechanism
450 void fixCursorAfterDelete(CursorSlice & cur, CursorSlice const & where);
452 /// delete double space (false) or empty paragraphs (true) around old_cursor
453 bool deleteEmptyParagraphMechanism(CursorSlice const & old_cursor);
456 void setCounter(Buffer const &, ParagraphList::iterator pit);
458 void deleteWordForward();
460 void deleteWordBackward();
462 void deleteLineForward();
464 /// sets row.end to the pos value *after* which a row should break.
465 /// for example, the pos after which isNewLine(pos) == true
466 void rowBreakPoint(ParagraphList::iterator pit, Row & row) const;
468 /// sets row.witdh to the minimum space a row needs on the screen in pixel
469 void fill(ParagraphList::iterator pit, Row & row, int workwidth) const;
472 * returns the minimum space a manual label needs on the
475 int labelFill(ParagraphList::iterator pit, Row const & row) const;
478 int labelEnd(ParagraphList::iterator pit) const;
482 /// set 'number' font property
484 /// is the cursor paragraph right-to-left?
488 /// return the default height of a row in pixels, considering font zoom
489 extern int defaultRowHeight();
492 std::string expandLabel(LyXTextClass const & textclass,
493 LyXLayout_ptr const & layout, bool appendix);