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remove Inset::getParagraphs()
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1 /**
2  * \file text3.C
3  * This file is part of LyX, the document processor.
4  * Licence details can be found in the file COPYING.
5  *
6  * \author Asger Alstrup
7  * \author Lars Gullik Bjønnes
8  * \author Alfredo Braunstein
9  * \author Angus Leeming
10  * \author John Levon
11  * \author André Pönitz
12  *
13  * Full author contact details are available in file CREDITS.
14  */
15
16 #include <config.h>
17
18 #include "lyxtext.h"
19
20 #include "buffer.h"
21 #include "bufferparams.h"
22 #include "BufferView.h"
23 #include "cursor.h"
24 #include "debug.h"
25 #include "dispatchresult.h"
26 #include "factory.h"
27 #include "funcrequest.h"
28 #include "gettext.h"
29 #include "intl.h"
30 #include "language.h"
31 #include "lyxrc.h"
32 #include "lyxrow.h"
33 #include "paragraph.h"
34 #include "paragraph_funcs.h"
35 #include "ParagraphParameters.h"
36 #include "undo.h"
37 #include "vspace.h"
38
39 #include "frontends/Dialogs.h"
40 #include "frontends/LyXView.h"
41
42 #include "insets/insetcommand.h"
43 #include "insets/insetnewline.h"
44 #include "insets/insetspecialchar.h"
45 #include "insets/insettext.h"
46
47 #include "support/lstrings.h"
48 #include "support/tostr.h"
49 #include "support/std_sstream.h"
50
51 #include "mathed/formulabase.h"
52
53 #include <clocale>
54
55 using bv_funcs::replaceSelection;
56
57 using lyx::pos_type;
58
59 using lyx::support::isStrUnsignedInt;
60 using lyx::support::strToUnsignedInt;
61
62 using std::endl;
63 using std::find;
64 using std::string;
65 using std::istringstream;
66 using std::vector;
67
68
69 extern string current_layout;
70
71 // the selection possible is needed, that only motion events are
72 // used, where the bottom press event was on the drawing area too
73 bool selection_possible = false;
74
75
76 namespace {
77
78         // globals...
79         LyXFont freefont(LyXFont::ALL_IGNORE);
80         bool toggleall = false;
81
82
83         void toggleAndShow(BufferView * bv, LyXText * text,
84                 LyXFont const & font, bool toggleall = true)
85         {
86                 if (!bv->available())
87                         return;
88
89                 text->toggleFree(font, toggleall);
90                 bv->update();
91
92                 if (font.language() != ignore_language ||
93                                 font.number() != LyXFont::IGNORE) {
94                         LyXCursor & cursor = text->cursor;
95                         Paragraph & par = *text->cursorPar();
96                         text->bidi.computeTables(par, *bv->buffer(),
97                                 *par.getRow(cursor.pos()));
98                         if (cursor.boundary() !=
99                                         text->bidi.isBoundary(*bv->buffer(), par,
100                                                         cursor.pos(),
101                                                         text->real_current_font))
102                                 text->setCursor(cursor.par(), cursor.pos(),
103                                                 false, !cursor.boundary());
104                 }
105         }
106
107
108         /// Apply the contents of freefont at the current cursor location.
109         void apply_freefont(BufferView * bv, LyXText * text)
110         {
111                 toggleAndShow(bv, text, freefont, toggleall);
112                 bv->owner()->view_state_changed();
113                 bv->owner()->message(_("Character set"));
114         }
115
116
117         /** Set the freefont using the contents of \param data dispatched from
118          *  the frontends and apply it at the current cursor location.
119          */
120         void update_and_apply_freefont(BufferView * bv, LyXText * text,
121                 string const & data)
122         {
123                 LyXFont font;
124                 bool toggle;
125                 if (bv_funcs::string2font(data, font, toggle)) {
126                         freefont = font;
127                         toggleall = toggle;
128                         apply_freefont(bv, text);
129                 }
130         }
131
132
133         void emph(BufferView * bv, LyXText * text)
134         {
135                 LyXFont font(LyXFont::ALL_IGNORE);
136                 font.setEmph(LyXFont::TOGGLE);
137                 toggleAndShow(bv, text, font);
138         }
139
140
141         void bold(BufferView * bv, LyXText * text)
142         {
143                 LyXFont font(LyXFont::ALL_IGNORE);
144                 font.setSeries(LyXFont::BOLD_SERIES);
145                 toggleAndShow(bv, text, font);
146         }
147
148
149         void noun(BufferView * bv, LyXText * text)
150         {
151                 LyXFont font(LyXFont::ALL_IGNORE);
152                 font.setNoun(LyXFont::TOGGLE);
153                 toggleAndShow(bv, text, font);
154         }
155
156
157         void lang(BufferView * bv, string const & l, LyXText * text)
158         {
159                 Language const * lang = languages.getLanguage(l);
160                 if (!lang)
161                         return;
162
163                 LyXFont font(LyXFont::ALL_IGNORE);
164                 font.setLanguage(lang);
165                 toggleAndShow(bv, text, font);
166         }
167
168
169         void code(BufferView * bv, LyXText * text)
170         {
171                 LyXFont font(LyXFont::ALL_IGNORE);
172                 font.setFamily(LyXFont::TYPEWRITER_FAMILY); // no good
173                 toggleAndShow(bv, text, font);
174         }
175
176
177         void sans(BufferView * bv, LyXText * text)
178         {
179                 LyXFont font(LyXFont::ALL_IGNORE);
180                 font.setFamily(LyXFont::SANS_FAMILY);
181                 toggleAndShow(bv, text, font);
182         }
183
184
185         void roman(BufferView * bv, LyXText * text)
186         {
187                 LyXFont font(LyXFont::ALL_IGNORE);
188                 font.setFamily(LyXFont::ROMAN_FAMILY);
189                 toggleAndShow(bv, text, font);
190         }
191
192
193         void styleReset(BufferView * bv, LyXText * text)
194         {
195                 LyXFont font(LyXFont::ALL_INHERIT, ignore_language);
196                 toggleAndShow(bv, text, font);
197         }
198
199
200         void underline(BufferView * bv, LyXText * text)
201         {
202                 LyXFont font(LyXFont::ALL_IGNORE);
203                 font.setUnderbar(LyXFont::TOGGLE);
204                 toggleAndShow(bv, text, font);
205         }
206
207
208         void fontSize(BufferView * bv, string const & size, LyXText * text)
209         {
210                 LyXFont font(LyXFont::ALL_IGNORE);
211                 font.setLyXSize(size);
212                 toggleAndShow(bv, text, font);
213         }
214
215
216         void moveCursor(BufferView * bv, bool selecting)
217         {
218                 LyXText * lt = bv->getLyXText();
219
220 //              if (!lt->selection.set())
221 //                      lt->selection.cursor = lt->cursor;
222
223                 if (selecting || lt->selection.mark())
224                         lt->setSelection();
225
226                 if (!lt->selection.set())
227                         bv->haveSelection(false);
228                 bv->switchKeyMap();
229         }
230
231
232         void finishChange(BufferView * bv, bool selecting = false)
233         {
234                 finishUndo();
235                 moveCursor(bv, selecting);
236                 bv->owner()->view_state_changed();
237         }
238
239 } // anon namespace
240
241
242 namespace bv_funcs {
243
244 string const freefont2string()
245 {
246         string data;
247         if (font2string(freefont, toggleall, data))
248                 return data;
249         return string();
250 }
251
252 }
253
254
255
256 InsetOld * LyXText::checkInsetHit(int x, int y)
257 {
258         ParagraphList::iterator pit;
259         ParagraphList::iterator end;
260
261         getParsInRange(paragraphs(),
262                        bv()->top_y() - yo_,
263                        bv()->top_y() - yo_ + bv()->workHeight(),
264                        pit, end);
265
266         lyxerr << "checkInsetHit: x: " << x << " y: " << y << endl;
267         for ( ; pit != end; ++pit) {
268                 InsetList::iterator iit = pit->insetlist.begin();
269                 InsetList::iterator iend = pit->insetlist.end();
270                 for ( ; iit != iend; ++iit) {
271                         InsetOld * inset = iit->inset;
272                         //lyxerr << "examining inset " << inset
273                         //      << " xy: " << inset->x() << "/" << inset->y()
274                         //      << " x: " << inset->x() << "..." << inset->x() + inset->width()
275                         //      << " y: " << inset->y() - inset->ascent() << "..."
276                         //      << inset->y() + inset->descent()
277                         //      << endl;
278                         if (x >= inset->x()
279                             && x <= inset->x() + inset->width()
280                             && y >= inset->y() - inset->ascent()
281                             && y <= inset->y() + inset->descent())
282                         {
283                                 lyxerr << "Hit inset: " << inset << endl;
284                                 return inset;
285                         }
286                 }
287         }
288         lyxerr << "No inset hit. " << endl;
289         return 0;
290 }
291
292
293 bool LyXText::gotoNextInset(vector<InsetOld::Code> const & codes,
294                             string const & contents)
295 {
296         ParagraphList::iterator end = paragraphs().end();
297         ParagraphList::iterator pit = cursorPar();
298         pos_type pos = cursor.pos();
299
300         InsetOld * inset;
301         do {
302                 if (pos + 1 < pit->size()) {
303                         ++pos;
304                 } else  {
305                         ++pit;
306                         pos = 0;
307                 }
308
309         } while (pit != end &&
310                  !(pit->isInset(pos) &&
311                    (inset = pit->getInset(pos)) != 0 &&
312                    find(codes.begin(), codes.end(), inset->lyxCode()) != codes.end() &&
313                    (contents.empty() ||
314                     static_cast<InsetCommand *>(pit->getInset(pos))->getContents()
315                     == contents)));
316
317         if (pit == end)
318                 return false;
319
320         setCursor(parOffset(pit), pos, false);
321         return true;
322 }
323
324
325 void LyXText::gotoInset(vector<InsetOld::Code> const & codes,
326                         bool same_content)
327 {
328         clearSelection();
329
330         string contents;
331         if (same_content && cursor.pos() < cursorPar()->size()
332             && cursorPar()->isInset(cursor.pos())) {
333                 InsetOld const * inset = cursorPar()->getInset(cursor.pos());
334                 if (find(codes.begin(), codes.end(), inset->lyxCode())
335                     != codes.end())
336                         contents = static_cast<InsetCommand const *>(inset)->getContents();
337         }
338
339         if (!gotoNextInset(codes, contents)) {
340                 if (cursor.pos() || cursorPar() != paragraphs().begin()) {
341                         LyXCursor tmp = cursor;
342                         cursor.par(0);
343                         cursor.pos(0);
344                         if (!gotoNextInset(codes, contents)) {
345                                 cursor = tmp;
346                                 bv()->owner()->message(_("No more insets"));
347                         }
348                 } else {
349                         bv()->owner()->message(_("No more insets"));
350                 }
351         }
352         bv()->update();
353         selection.cursor = cursor;
354 }
355
356
357 void LyXText::gotoInset(InsetOld::Code code, bool same_content)
358 {
359         gotoInset(vector<InsetOld::Code>(1, code), same_content);
360 }
361
362
363 void LyXText::cursorPrevious()
364 {
365
366         RowList::iterator crit = cursorRow();
367         ParagraphList::iterator cpar = cursorPar();
368
369         int x = bv()->x_target() - xo_;
370         int y = bv()->top_y() - yo_;
371         setCursorFromCoordinates(x, y);
372
373         if (cpar == cursorPar() && crit == cursorRow()) {
374                 // we have a row which is taller than the workarea. The
375                 // simplest solution is to move to the previous row instead.
376                 cursorUp(true);
377         }
378
379         bv()->updateScrollbar();
380         finishUndo();
381 }
382
383
384 void LyXText::cursorNext()
385 {
386         RowList::iterator crit = cursorRow();
387         ParagraphList::iterator cpar = cursorPar();
388
389         int x = bv()->x_target() - xo_;
390         int y = bv()->top_y() + bv()->workHeight() - yo_;
391         setCursorFromCoordinates(x, y);
392
393         if (cpar == cursorPar() && crit == cursorRow()) {
394                 // we have a row which is taller than the workarea. The
395                 // simplest solution is to move to the next row instead.
396                 cursorDown(true);
397         }
398
399         bv()->updateScrollbar();
400         finishUndo();
401 }
402
403
404 namespace {
405
406 void specialChar(LyXText * lt, BufferView * bv, InsetSpecialChar::Kind kind)
407 {
408         bv->update();
409         InsetSpecialChar * new_inset = new InsetSpecialChar(kind);
410         replaceSelection(lt);
411         if (!bv->insertInset(new_inset))
412                 delete new_inset;
413         else
414                 bv->update();
415 }
416
417
418 void doInsertInset(LyXText const & lt, FuncRequest const & cmd,
419                    bool edit, bool pastesel)
420 {
421         InsetOld * inset = createInset(cmd);
422         BufferView * bv = cmd.view();
423
424         if (inset) {
425                 bool gotsel = false;
426                 if (lt.selection.set()) {
427                         bv->owner()->dispatch(FuncRequest(LFUN_CUT));
428                         gotsel = true;
429                 }
430                 if (bv->insertInset(inset)) {
431                         if (edit)
432                                 inset->edit(bv, true);
433                         if (gotsel && pastesel)
434                                 bv->owner()->dispatch(FuncRequest(LFUN_PASTE));
435                 } else
436                         delete inset;
437         }
438 }
439
440 } // anon namespace
441
442
443 void LyXText::number()
444 {
445         LyXFont font(LyXFont::ALL_IGNORE);
446         font.setNumber(LyXFont::TOGGLE);
447         toggleAndShow(bv(), this, font);
448 }
449
450
451 bool LyXText::rtl() const
452 {
453         return cursorPar()->isRightToLeftPar(bv()->buffer()->params());
454 }
455
456
457 DispatchResult LyXText::dispatch(FuncRequest const & cmd)
458 {
459         //lyxerr[Debug::ACTION] << "LyXText::dispatch: cmd: " << cmd << endl;
460
461         BufferView * bv = cmd.view();
462
463         switch (cmd.action) {
464
465         case LFUN_APPENDIX: {
466                 ParagraphList::iterator pit = cursorPar();
467                 bool start = !pit->params().startOfAppendix();
468
469                 // ensure that we have only one start_of_appendix in this document
470                 ParagraphList::iterator tmp = paragraphs().begin();
471                 ParagraphList::iterator end = paragraphs().end();
472
473                 for (; tmp != end; ++tmp) {
474                         if (tmp->params().startOfAppendix()) {
475                                 recUndo(parOffset(tmp));
476                                 tmp->params().startOfAppendix(false);
477                                 redoParagraph(tmp);
478                                 break;
479                         }
480                 }
481
482                 recUndo(parOffset(pit));
483                 pit->params().startOfAppendix(start);
484
485                 // we can set the refreshing parameters now
486                 updateCounters();
487                 redoParagraph(cursorPar());
488                 setCursor(cursorPar(), cursor.pos());
489                 bv->update();
490                 break;
491         }
492
493         case LFUN_DELETE_WORD_FORWARD:
494                 clearSelection();
495                 deleteWordForward();
496                 finishChange(bv);
497                 break;
498
499         case LFUN_DELETE_WORD_BACKWARD:
500                 clearSelection();
501                 deleteWordBackward();
502                 finishChange(bv);
503                 break;
504
505         case LFUN_DELETE_LINE_FORWARD:
506                 clearSelection();
507                 deleteLineForward();
508                 finishChange(bv);
509                 break;
510
511         case LFUN_WORDRIGHT:
512                 if (!selection.mark())
513                         clearSelection();
514                 if (rtl())
515                         cursorLeftOneWord();
516                 else
517                         cursorRightOneWord();
518                 finishChange(bv);
519                 break;
520
521         case LFUN_WORDLEFT:
522                 if (!selection.mark())
523                         clearSelection();
524                 if (rtl())
525                         cursorRightOneWord();
526                 else
527                         cursorLeftOneWord();
528                 finishChange(bv);
529                 break;
530
531         case LFUN_BEGINNINGBUF:
532                 if (!selection.mark())
533                         clearSelection();
534                 cursorTop();
535                 finishChange(bv);
536                 break;
537
538         case LFUN_ENDBUF:
539                 if (selection.mark())
540                         clearSelection();
541                 cursorBottom();
542                 finishChange(bv);
543                 break;
544
545         case LFUN_RIGHTSEL:
546                 if (!selection.set())
547                         selection.cursor = cursor;
548                 if (rtl())
549                         cursorLeft(bv);
550                 else
551                         cursorRight(bv);
552                 finishChange(bv, true);
553                 break;
554
555         case LFUN_LEFTSEL:
556                 if (!selection.set())
557                         selection.cursor = cursor;
558                 if (rtl())
559                         cursorRight(bv);
560                 else
561                         cursorLeft(bv);
562                 finishChange(bv, true);
563                 break;
564
565         case LFUN_UPSEL:
566                 if (!selection.set())
567                         selection.cursor = cursor;
568                 cursorUp(true);
569                 finishChange(bv, true);
570                 break;
571
572         case LFUN_DOWNSEL:
573                 if (!selection.set())
574                         selection.cursor = cursor;
575                 cursorDown(true);
576                 finishChange(bv, true);
577                 break;
578
579         case LFUN_UP_PARAGRAPHSEL:
580                 if (!selection.set())
581                         selection.cursor = cursor;
582                 cursorUpParagraph();
583                 finishChange(bv, true);
584                 break;
585
586         case LFUN_DOWN_PARAGRAPHSEL:
587                 if (!selection.set())
588                         selection.cursor = cursor;
589                 cursorDownParagraph();
590                 finishChange(bv, true);
591                 break;
592
593         case LFUN_PRIORSEL:
594                 if (!selection.set())
595                         selection.cursor = cursor;
596                 cursorPrevious();
597                 finishChange(bv, true);
598                 break;
599
600         case LFUN_NEXTSEL:
601                 if (!selection.set())
602                         selection.cursor = cursor;
603                 cursorNext();
604                 finishChange(bv, true);
605                 break;
606
607         case LFUN_HOMESEL:
608                 if (!selection.set())
609                         selection.cursor = cursor;
610                 cursorHome();
611                 finishChange(bv, true);
612                 break;
613
614         case LFUN_ENDSEL:
615                 if (!selection.set())
616                         selection.cursor = cursor;
617                 cursorEnd();
618                 finishChange(bv, true);
619                 break;
620
621         case LFUN_WORDRIGHTSEL:
622                 if (rtl())
623                         cursorLeftOneWord();
624                 else
625                         cursorRightOneWord();
626                 finishChange(bv, true);
627                 break;
628
629         case LFUN_WORDLEFTSEL:
630                 if (rtl())
631                         cursorRightOneWord();
632                 else
633                         cursorLeftOneWord();
634                 finishChange(bv, true);
635                 break;
636
637         case LFUN_WORDSEL: {
638                 LyXCursor cur1 = cursor;
639                 LyXCursor cur2;
640                 getWord(cur1, cur2, lyx::WHOLE_WORD);
641                 setCursor(cur1.par(), cur1.pos());
642                 clearSelection();
643                 setCursor(cur2.par(), cur2.pos());
644                 finishChange(bv, true);
645                 break;
646         }
647
648         case LFUN_RIGHT:
649                 finishChange(bv);
650                 return moveRight();
651
652         case LFUN_LEFT:
653                 finishChange(bv);
654                 return moveLeft();
655
656         case LFUN_UP:
657                 finishChange(bv);
658                 return moveUp();
659
660         case LFUN_DOWN:
661                 finishChange(bv);
662                 return moveDown();
663
664         case LFUN_UP_PARAGRAPH:
665                 if (!selection.mark())
666                         clearSelection();
667                 cursorUpParagraph();
668                 finishChange(bv);
669                 break;
670
671         case LFUN_DOWN_PARAGRAPH:
672                 if (!selection.mark())
673                         clearSelection();
674                 cursorDownParagraph();
675                 finishChange(bv, false);
676                 break;
677
678         case LFUN_PRIOR:
679                 if (!selection.mark())
680                         clearSelection();
681                 finishChange(bv, false);
682                 if (cursorPar() == firstPar() && cursorRow() == firstRow())
683                         return DispatchResult(false, FINISHED_UP);
684                 cursorPrevious();
685                 break;
686
687         case LFUN_NEXT:
688                 if (!selection.mark())
689                         clearSelection();
690                 finishChange(bv, false);
691                 if (cursorPar() == lastPar() && cursorRow() == lastRow())
692                         return DispatchResult(false, FINISHED_DOWN);
693                 cursorNext();
694                 break;
695
696         case LFUN_HOME:
697                 if (!selection.mark())
698                         clearSelection();
699                 cursorHome();
700                 finishChange(bv, false);
701                 break;
702
703         case LFUN_END:
704                 if (!selection.mark())
705                         clearSelection();
706                 cursorEnd();
707                 finishChange(bv, false);
708                 break;
709
710         case LFUN_BREAKLINE: {
711                 lyx::pos_type body = cursorPar()->beginOfBody();
712
713                 // Not allowed by LaTeX (labels or empty par)
714                 if (cursor.pos() <= body)
715                         break;
716
717                 replaceSelection(bv->getLyXText());
718                 insertInset(new InsetNewline);
719                 setCursor(cursorPar(), cursor.pos());
720                 moveCursor(bv, false);
721                 break;
722         }
723
724         case LFUN_DELETE:
725                 if (!selection.set()) {
726                         Delete();
727                         selection.cursor = cursor;
728                         // It is possible to make it a lot faster still
729                         // just comment out the line below...
730                 } else {
731                         cutSelection(true, false);
732                 }
733                 moveCursor(bv, false);
734                 bv->owner()->view_state_changed();
735                 break;
736
737         case LFUN_DELETE_SKIP:
738                 // Reverse the effect of LFUN_BREAKPARAGRAPH_SKIP.
739                 if (!selection.set()) {
740                         if (cursor.pos() == cursorPar()->size()) {
741                                 cursorRight(bv);
742                                 cursorLeft(bv);
743                                 Delete();
744                                 selection.cursor = cursor;
745                         } else {
746                                 Delete();
747                                 selection.cursor = cursor;
748                         }
749                 } else {
750                         cutSelection(true, false);
751                 }
752                 bv->update();
753                 break;
754
755
756         case LFUN_BACKSPACE:
757                 if (!selection.set()) {
758                         if (bv->owner()->getIntl().getTransManager().backspace()) {
759                                 backspace();
760                                 selection.cursor = cursor;
761                                 // It is possible to make it a lot faster still
762                                 // just comment out the line below...
763                         }
764                 } else {
765                         cutSelection(true, false);
766                 }
767                 bv->owner()->view_state_changed();
768                 bv->switchKeyMap();
769                 bv->update();
770                 break;
771
772         case LFUN_BACKSPACE_SKIP:
773                 // Reverse the effect of LFUN_BREAKPARAGRAPH_SKIP.
774                 if (!selection.set()) {
775                         LyXCursor cur = cursor;
776                         backspace();
777                         selection.cursor = cur;
778                 } else {
779                         cutSelection(true, false);
780                 }
781                 bv->update();
782                 break;
783
784         case LFUN_BREAKPARAGRAPH:
785                 replaceSelection(bv->getLyXText());
786                 breakParagraph(bv->buffer()->paragraphs(), 0);
787                 bv->update();
788                 selection.cursor = cursor;
789                 bv->switchKeyMap();
790                 bv->owner()->view_state_changed();
791                 break;
792
793         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
794                 replaceSelection(bv->getLyXText());
795                 breakParagraph(bv->buffer()->paragraphs(), 1);
796                 bv->update();
797                 selection.cursor = cursor;
798                 bv->switchKeyMap();
799                 bv->owner()->view_state_changed();
800                 break;
801
802         case LFUN_BREAKPARAGRAPH_SKIP: {
803                 // When at the beginning of a paragraph, remove
804                 // indentation and add a "defskip" at the top.
805                 // Otherwise, do the same as LFUN_BREAKPARAGRAPH.
806                 LyXCursor cur = cursor;
807                 replaceSelection(bv->getLyXText());
808                 if (cur.pos() == 0) {
809                         ParagraphParameters & params = getPar(cur)->params();
810                         setParagraph(
811                                         params.spacing(),
812                                         params.align(),
813                                         params.labelWidthString(), 1);
814                 } else {
815                         breakParagraph(bv->buffer()->paragraphs(), 0);
816                 }
817                 bv->update();
818                 selection.cursor = cur;
819                 bv->switchKeyMap();
820                 bv->owner()->view_state_changed();
821                 break;
822         }
823
824         case LFUN_PARAGRAPH_SPACING: {
825                 ParagraphList::iterator pit = cursorPar();
826                 Spacing::Space cur_spacing = pit->params().spacing().getSpace();
827                 float cur_value = 1.0;
828                 if (cur_spacing == Spacing::Other)
829                         cur_value = pit->params().spacing().getValue();
830
831                 istringstream is(cmd.argument);
832                 string tmp;
833                 is >> tmp;
834                 Spacing::Space new_spacing = cur_spacing;
835                 float new_value = cur_value;
836                 if (tmp.empty()) {
837                         lyxerr << "Missing argument to `paragraph-spacing'"
838                                << endl;
839                 } else if (tmp == "single") {
840                         new_spacing = Spacing::Single;
841                 } else if (tmp == "onehalf") {
842                         new_spacing = Spacing::Onehalf;
843                 } else if (tmp == "double") {
844                         new_spacing = Spacing::Double;
845                 } else if (tmp == "other") {
846                         new_spacing = Spacing::Other;
847                         float tmpval = 0.0;
848                         is >> tmpval;
849                         lyxerr << "new_value = " << tmpval << endl;
850                         if (tmpval != 0.0)
851                                 new_value = tmpval;
852                 } else if (tmp == "default") {
853                         new_spacing = Spacing::Default;
854                 } else {
855                         lyxerr << _("Unknown spacing argument: ")
856                                << cmd.argument << endl;
857                 }
858                 if (cur_spacing != new_spacing || cur_value != new_value) {
859                         pit->params().spacing(Spacing(new_spacing, new_value));
860                         redoParagraph();
861                         bv->update();
862                 }
863                 break;
864         }
865
866         case LFUN_INSET_APPLY: {
867                 string const name = cmd.getArg(0);
868                 InsetBase * inset = bv->owner()->getDialogs().getOpenInset(name);
869                 if (inset) {
870                         FuncRequest fr(bv, LFUN_INSET_MODIFY, cmd.argument);
871                         inset->dispatch(fr);
872                 } else {
873                         FuncRequest fr(bv, LFUN_INSET_INSERT, cmd.argument);
874                         dispatch(fr);
875                 }
876                 break;
877         }
878
879         case LFUN_INSET_INSERT: {
880                 InsetOld * inset = createInset(cmd);
881                 if (!inset || !bv->insertInset(inset))
882                         delete inset;
883                 break;
884                 }
885
886         case LFUN_INSET_SETTINGS:
887                 bv->cursor().innerInset()->showInsetDialog(bv);
888                 break;
889
890         case LFUN_INSET_TOGGLE:
891                 clearSelection();
892                 if (!toggleInset())
893                         return DispatchResult(false);
894                 bv->update();
895                 bv->switchKeyMap();
896                 break;
897
898         case LFUN_SPACE_INSERT:
899                 if (cursorPar()->layout()->free_spacing)
900                         insertChar(' ');
901                 else
902                         doInsertInset(*this, cmd, false, false);
903                 moveCursor(bv, false);
904                 break;
905
906         case LFUN_HYPHENATION:
907                 specialChar(this, bv, InsetSpecialChar::HYPHENATION);
908                 break;
909
910         case LFUN_LIGATURE_BREAK:
911                 specialChar(this, bv, InsetSpecialChar::LIGATURE_BREAK);
912                 break;
913
914         case LFUN_LDOTS:
915                 specialChar(this, bv, InsetSpecialChar::LDOTS);
916                 break;
917
918         case LFUN_END_OF_SENTENCE:
919                 specialChar(this, bv, InsetSpecialChar::END_OF_SENTENCE);
920                 break;
921
922         case LFUN_MENU_SEPARATOR:
923                 specialChar(this, bv, InsetSpecialChar::MENU_SEPARATOR);
924                 break;
925
926         case LFUN_MARK_OFF:
927                 clearSelection();
928                 bv->update();
929                 selection.cursor = cursor;
930                 cmd.message(N_("Mark off"));
931                 break;
932
933         case LFUN_MARK_ON:
934                 clearSelection();
935                 selection.mark(true);
936                 bv->update();
937                 selection.cursor = cursor;
938                 cmd.message(N_("Mark on"));
939                 break;
940
941         case LFUN_SETMARK:
942                 clearSelection();
943                 if (selection.mark()) {
944                         cmd.message(N_("Mark removed"));
945                 } else {
946                         selection.mark(true);
947                         cmd.message(N_("Mark set"));
948                 }
949                 selection.cursor = cursor;
950                 bv->update();
951                 break;
952
953         case LFUN_UPCASE_WORD:
954                 changeCase(LyXText::text_uppercase);
955                 bv->update();
956                 break;
957
958         case LFUN_LOWCASE_WORD:
959                 changeCase(LyXText::text_lowercase);
960                 bv->update();
961                 break;
962
963         case LFUN_CAPITALIZE_WORD:
964                 changeCase(LyXText::text_capitalization);
965                 bv->update();
966                 break;
967
968         case LFUN_TRANSPOSE_CHARS:
969                 recUndo(cursor.par());
970                 redoParagraph();
971                 bv->update();
972                 break;
973
974         case LFUN_PASTE:
975                 cmd.message(_("Paste"));
976                 replaceSelection(bv->getLyXText());
977 #warning FIXME Check if the arg is in the domain of available selections.
978                 if (isStrUnsignedInt(cmd.argument))
979                         pasteSelection(strToUnsignedInt(cmd.argument));
980                 else
981                         pasteSelection(0);
982                 clearSelection(); // bug 393
983                 bv->update();
984                 bv->switchKeyMap();
985                 finishUndo();
986                 break;
987
988         case LFUN_CUT:
989                 cutSelection(true, true);
990                 cmd.message(_("Cut"));
991                 bv->update();
992                 break;
993
994         case LFUN_COPY:
995                 copySelection();
996                 cmd.message(_("Copy"));
997                 break;
998
999         case LFUN_BEGINNINGBUFSEL:
1000                 if (in_inset_)
1001                         return DispatchResult(false);
1002                 cursorTop();
1003                 finishChange(bv, true);
1004                 break;
1005
1006         case LFUN_ENDBUFSEL:
1007                 if (in_inset_)
1008                         return DispatchResult(false);
1009                 cursorBottom();
1010                 finishChange(bv, true);
1011                 break;
1012
1013         case LFUN_GETXY:
1014                 cmd.message(tostr(cursor.x()) + ' ' + tostr(cursor.y()));
1015                 break;
1016
1017         case LFUN_SETXY: {
1018                 int x = 0;
1019                 int y = 0;
1020                 istringstream is(cmd.argument);
1021                 is >> x >> y;
1022                 if (!is)
1023                         lyxerr << "SETXY: Could not parse coordinates in '"
1024                                << cmd.argument << std::endl;
1025                 else
1026                         setCursorFromCoordinates(x, y);
1027                 break;
1028         }
1029
1030         case LFUN_GETFONT:
1031                 if (current_font.shape() == LyXFont::ITALIC_SHAPE)
1032                         cmd.message("E");
1033                 else if (current_font.shape() == LyXFont::SMALLCAPS_SHAPE)
1034                         cmd.message("N");
1035                 else
1036                         cmd.message("0");
1037                 break;
1038
1039         case LFUN_GETLAYOUT:
1040                 cmd.message(tostr(cursorPar()->layout()));
1041                 break;
1042
1043         case LFUN_LAYOUT: {
1044                 lyxerr[Debug::INFO] << "LFUN_LAYOUT: (arg) "
1045                   << cmd.argument << endl;
1046
1047                 // This is not the good solution to the empty argument
1048                 // problem, but it will hopefully suffice for 1.2.0.
1049                 // The correct solution would be to augument the
1050                 // function list/array with information about what
1051                 // functions needs arguments and their type.
1052                 if (cmd.argument.empty()) {
1053                         cmd.errorMessage(_("LyX function 'layout' needs an argument."));
1054                         break;
1055                 }
1056
1057                 // Derive layout number from given argument (string)
1058                 // and current buffer's textclass (number)
1059                 LyXTextClass const & tclass = bv->buffer()->params().getLyXTextClass();
1060                 bool hasLayout = tclass.hasLayout(cmd.argument);
1061                 string layout = cmd.argument;
1062
1063                 // If the entry is obsolete, use the new one instead.
1064                 if (hasLayout) {
1065                         string const & obs = tclass[layout]->obsoleted_by();
1066                         if (!obs.empty())
1067                                 layout = obs;
1068                 }
1069
1070                 if (!hasLayout) {
1071                         cmd.errorMessage(string(N_("Layout ")) + cmd.argument +
1072                                 N_(" not known"));
1073                         break;
1074                 }
1075
1076                 bool change_layout = (current_layout != layout);
1077
1078                 if (!change_layout && selection.set() &&
1079                         selection.start.par() != selection.end.par())
1080                 {
1081                         ParagraphList::iterator spit = getPar(selection.start);
1082                         ParagraphList::iterator epit = boost::next(getPar(selection.end));
1083                         while (spit != epit) {
1084                                 if (spit->layout()->name() != current_layout) {
1085                                         change_layout = true;
1086                                         break;
1087                                 }
1088                                 ++spit;
1089                         }
1090                 }
1091
1092                 if (change_layout) {
1093                         current_layout = layout;
1094                         setLayout(layout);
1095                         bv->owner()->setLayout(layout);
1096                         bv->update();
1097                         bv->switchKeyMap();
1098                 }
1099                 break;
1100         }
1101
1102         case LFUN_PASTESELECTION: {
1103                 // this was originally a bv->text->clearSelection(), i.e
1104                 // the outermost LyXText!
1105                 clearSelection();
1106                 string const clip = bv->getClipboard();
1107                 if (!clip.empty()) {
1108                         if (cmd.argument == "paragraph")
1109                                 insertStringAsParagraphs(clip);
1110                         else
1111                                 insertStringAsLines(clip);
1112                         bv->update();
1113                 }
1114                 break;
1115         }
1116
1117         case LFUN_GOTOERROR:
1118                 gotoInset(InsetOld::ERROR_CODE, false);
1119                 break;
1120
1121         case LFUN_GOTONOTE:
1122                 gotoInset(InsetOld::NOTE_CODE, false);
1123                 break;
1124
1125         case LFUN_REFERENCE_GOTO: {
1126                 vector<InsetOld::Code> tmp;
1127                 tmp.push_back(InsetOld::LABEL_CODE);
1128                 tmp.push_back(InsetOld::REF_CODE);
1129                 gotoInset(tmp, true);
1130                 break;
1131         }
1132
1133         case LFUN_QUOTE: {
1134                 replaceSelection(bv->getLyXText());
1135                 ParagraphList::iterator pit = cursorPar();
1136                 lyx::pos_type pos = cursor.pos();
1137                 char c;
1138                 if (!pos)
1139                         c = ' ';
1140                 else if (pit->isInset(pos - 1) && pit->getInset(pos - 1)->isSpace())
1141                         c = ' ';
1142                 else
1143                         c = pit->getChar(pos - 1);
1144
1145                 LyXLayout_ptr const & style = pit->layout();
1146
1147                 BufferParams const & bufparams = bv->buffer()->params();
1148                 if (style->pass_thru ||
1149                     pit->getFontSettings(bufparams,pos).language()->lang() == "hebrew" ||
1150                     !bv->insertInset(new InsetQuotes(c, bufparams)))
1151                         bv->owner()->dispatch(FuncRequest(LFUN_SELFINSERT, "\""));
1152                 break;
1153         }
1154
1155         case LFUN_DATE_INSERT: {
1156                 replaceSelection(bv->getLyXText());
1157                 time_t now_time_t = time(NULL);
1158                 struct tm * now_tm = localtime(&now_time_t);
1159                 setlocale(LC_TIME, "");
1160                 string arg;
1161                 if (!cmd.argument.empty())
1162                         arg = cmd.argument;
1163                 else
1164                         arg = lyxrc.date_insert_format;
1165                 char datetmp[32];
1166                 int const datetmp_len =
1167                         ::strftime(datetmp, 32, arg.c_str(), now_tm);
1168
1169                 for (int i = 0; i < datetmp_len; i++)
1170                         insertChar(datetmp[i]);
1171
1172                 selection.cursor = cursor;
1173                 moveCursor(bv, false);
1174                 break;
1175         }
1176
1177         case LFUN_MOUSE_TRIPLE:
1178                 if (!bv->buffer())
1179                         break;
1180                 if (cmd.button() == mouse_button::button1) {
1181                         selection_possible = true;
1182                         cursorHome();
1183                         selection.cursor = cursor;
1184                         cursorEnd();
1185                         setSelection();
1186                         bv->haveSelection(selection.set());
1187                 }
1188                 break;
1189
1190         case LFUN_MOUSE_DOUBLE:
1191                 if (!bv->buffer())
1192                         break;
1193                 if (cmd.button() == mouse_button::button1) {
1194                         selection_possible = true;
1195                         selectWord(lyx::WHOLE_WORD_STRICT);
1196                         bv->haveSelection(selection.set());
1197                 }
1198                 break;
1199
1200         case LFUN_MOUSE_MOTION: {
1201                 // Only use motion with button 1
1202                 //if (ev.button() != mouse_button::button1)
1203                 //      return false;
1204
1205                 if (!bv->buffer())
1206                         break;
1207                 // The test for not selection possible is needed, that
1208                 // only motion events are used, where the bottom press
1209                 // event was on the drawing area too
1210                 if (!selection_possible) {
1211                         lyxerr[Debug::ACTION] << "BufferView::Pimpl::"
1212                                 "Dispatch: no selection possible\n";
1213                         break;
1214                 }
1215                 RowList::iterator cursorrow = cursorRow();
1216
1217                 setCursorFromCoordinates(cmd.x, cmd.y);
1218
1219                 // This is to allow jumping over large insets
1220                 // FIXME: shouldn't be top-text-specific
1221                 if (cursorrow == cursorRow() && !in_inset_) {
1222                         if (cmd.y - bv->top_y() >= bv->workHeight())
1223                                 cursorDown(true);
1224                         else if (cmd.y - bv->top_y() < 0)
1225                                 cursorUp(true);
1226                 }
1227                 setSelection();
1228                 break;
1229         }
1230
1231         // Single-click on work area
1232         case LFUN_MOUSE_PRESS: {
1233                 if (!bv->buffer())
1234                         break;
1235
1236                 // ok ok, this is a hack (for xforms)
1237                 // We shouldn't go further down as we really should only do the
1238                 // scrolling and be done with this. Otherwise we may open some
1239                 // dialogs (Jug 20020424).
1240                 if (cmd.button() == mouse_button::button4) {
1241                         bv->scroll(-lyxrc.wheel_jump);
1242                         break;
1243                 }
1244                 if (cmd.button() == mouse_button::button5) {
1245                         bv->scroll(lyxrc.wheel_jump);
1246                         break;
1247                 }
1248
1249                 // Middle button press pastes if we have a selection
1250                 // We do this here as if the selection was inside an inset
1251                 // it could get cleared on the unlocking of the inset so
1252                 // we have to check this first
1253                 bool paste_internally = false;
1254                 if (cmd.button() == mouse_button::button2 && selection.set()) {
1255                         bv->owner()->dispatch(FuncRequest(LFUN_COPY));
1256                         paste_internally = true;
1257                 }
1258
1259                 selection_possible = true;
1260
1261                 // Clear the selection
1262                 clearSelection();
1263
1264                 // Right click on a footnote flag opens float menu
1265                 if (cmd.button() == mouse_button::button3) {
1266                         selection_possible = false;
1267                         break;
1268                 }
1269
1270                 setCursorFromCoordinates(cmd.x, cmd.y);
1271                 selection.cursor = cursor;
1272                 finishUndo();
1273                 bv->x_target(cursor.x() + xo_);
1274
1275                 if (bv->fitCursor())
1276                         selection_possible = false;
1277
1278                 // Insert primary selection with middle mouse
1279                 // if there is a local selection in the current buffer,
1280                 // insert this
1281                 if (cmd.button() == mouse_button::button2) {
1282                         if (paste_internally)
1283                                 bv->owner()->dispatch(FuncRequest(LFUN_PASTE));
1284                         else
1285                                 bv->owner()->dispatch(FuncRequest(LFUN_PASTESELECTION, "paragraph"));
1286                         selection_possible = false;
1287                 }
1288                 break;
1289         }
1290
1291         case LFUN_MOUSE_RELEASE: {
1292                 if (!bv->buffer())
1293                         break;
1294
1295                 // do nothing if we used the mouse wheel
1296                 if (cmd.button() == mouse_button::button4
1297                  || cmd.button() == mouse_button::button5)
1298                         return DispatchResult(true, false);
1299
1300                 selection_possible = false;
1301
1302                 if (cmd.button() == mouse_button::button2)
1303                         break;
1304
1305                 // finish selection
1306                 if (cmd.button() == mouse_button::button1)
1307                         bv->haveSelection(selection.set());
1308
1309                 bv->switchKeyMap();
1310                 bv->owner()->view_state_changed();
1311                 bv->owner()->updateMenubar();
1312                 bv->owner()->updateToolbar();
1313                 break;
1314         }
1315
1316         case LFUN_SELFINSERT: {
1317                 if (cmd.argument.empty())
1318                         break;
1319
1320                 // Automatically delete the currently selected
1321                 // text and replace it with what is being
1322                 // typed in now. Depends on lyxrc settings
1323                 // "auto_region_delete", which defaults to
1324                 // true (on).
1325
1326                 if (lyxrc.auto_region_delete) {
1327                         if (selection.set())
1328                                 cutSelection(false, false);
1329                         bv->haveSelection(false);
1330                 }
1331
1332                 clearSelection();
1333                 LyXFont const old_font = real_current_font;
1334
1335                 string::const_iterator cit = cmd.argument.begin();
1336                 string::const_iterator end = cmd.argument.end();
1337                 for (; cit != end; ++cit)
1338                         bv->owner()->getIntl().getTransManager().
1339                                 TranslateAndInsert(*cit, this);
1340
1341                 selection.cursor = cursor;
1342                 moveCursor(bv, false);
1343
1344                 // real_current_font.number can change so we need to
1345                 // update the minibuffer
1346                 if (old_font != real_current_font)
1347                         bv->owner()->view_state_changed();
1348                 bv->updateScrollbar();
1349                 break;
1350         }
1351
1352         case LFUN_URL: {
1353                 InsetCommandParams p("url");
1354                 string const data = InsetCommandMailer::params2string("url", p);
1355                 bv->owner()->getDialogs().show("url", data, 0);
1356                 break;
1357         }
1358
1359         case LFUN_HTMLURL: {
1360                 InsetCommandParams p("htmlurl");
1361                 string const data = InsetCommandMailer::params2string("url", p);
1362                 bv->owner()->getDialogs().show("url", data, 0);
1363                 break;
1364         }
1365
1366         case LFUN_INSERT_LABEL: {
1367                 InsetCommandParams p("label");
1368                 string const data = InsetCommandMailer::params2string("label", p);
1369                 bv->owner()->getDialogs().show("label", data, 0);
1370                 break;
1371         }
1372
1373
1374 #if 0
1375         case LFUN_INSET_LIST:
1376         case LFUN_INSET_THEOREM:
1377         case LFUN_INSET_CAPTION:
1378 #endif
1379         case LFUN_INSERT_NOTE:
1380         case LFUN_INSERT_CHARSTYLE:
1381         case LFUN_INSERT_BOX:
1382         case LFUN_INSERT_BRANCH:
1383         case LFUN_INSERT_BIBITEM:
1384         case LFUN_INSET_ERT:
1385         case LFUN_INSET_FLOAT:
1386         case LFUN_INSET_FOOTNOTE:
1387         case LFUN_INSET_MARGINAL:
1388         case LFUN_INSET_MINIPAGE:
1389         case LFUN_INSET_OPTARG:
1390         case LFUN_INSET_WIDE_FLOAT:
1391         case LFUN_INSET_WRAP:
1392         case LFUN_TABULAR_INSERT:
1393         case LFUN_ENVIRONMENT_INSERT:
1394                 // Open the inset, and move the current selection
1395                 // inside it.
1396                 doInsertInset(*this, cmd, true, true);
1397                 break;
1398
1399         case LFUN_INDEX_INSERT:
1400                 // Just open the inset
1401                 doInsertInset(*this, cmd, true, false);
1402                 break;
1403
1404         case LFUN_INDEX_PRINT:
1405         case LFUN_TOC_INSERT:
1406         case LFUN_HFILL:
1407         case LFUN_INSERT_LINE:
1408         case LFUN_INSERT_PAGEBREAK:
1409                 // do nothing fancy
1410                 doInsertInset(*this, cmd, false, false);
1411                 break;
1412
1413         case LFUN_DEPTH_MIN:
1414                 bv_funcs::changeDepth(bv, this, bv_funcs::DEC_DEPTH);
1415                 bv->update();
1416                 break;
1417
1418         case LFUN_DEPTH_PLUS:
1419                 bv_funcs::changeDepth(bv, this, bv_funcs::INC_DEPTH);
1420                 bv->update();
1421                 break;
1422
1423         case LFUN_MATH_DELIM:
1424         case LFUN_MATH_DISPLAY:
1425         case LFUN_INSERT_MATH:
1426         case LFUN_MATH_LIMITS:
1427         case LFUN_MATH_MACRO:
1428         case LFUN_MATH_MUTATE:
1429         case LFUN_MATH_SPACE:
1430         case LFUN_MATH_IMPORT_SELECTION:
1431         case LFUN_MATH_MODE:
1432         case LFUN_MATH_NONUMBER:
1433         case LFUN_MATH_NUMBER:
1434         case LFUN_MATH_EXTERN:
1435         case LFUN_MATH_SIZE:
1436                 mathDispatch(cmd);
1437                 break;
1438
1439         case LFUN_EMPH:
1440                 emph(bv, this);
1441                 bv->owner()->view_state_changed();
1442                 break;
1443
1444         case LFUN_BOLD:
1445                 bold(bv, this);
1446                 bv->owner()->view_state_changed();
1447                 break;
1448
1449         case LFUN_NOUN:
1450                 noun(bv, this);
1451                 bv->owner()->view_state_changed();
1452                 break;
1453
1454         case LFUN_CODE:
1455                 code(bv, this);
1456                 bv->owner()->view_state_changed();
1457                 break;
1458
1459         case LFUN_SANS:
1460                 sans(bv, this);
1461                 bv->owner()->view_state_changed();
1462                 break;
1463
1464         case LFUN_ROMAN:
1465                 roman(bv, this);
1466                 bv->owner()->view_state_changed();
1467                 break;
1468
1469         case LFUN_DEFAULT:
1470                 styleReset(bv, this);
1471                 bv->owner()->view_state_changed();
1472                 break;
1473
1474         case LFUN_UNDERLINE:
1475                 underline(bv, this);
1476                 bv->owner()->view_state_changed();
1477                 break;
1478
1479         case LFUN_FONT_SIZE:
1480                 fontSize(bv, cmd.argument, this);
1481                 bv->owner()->view_state_changed();
1482                 break;
1483
1484         case LFUN_LANGUAGE:
1485                 lang(bv, cmd.argument, this);
1486                 bv->switchKeyMap();
1487                 bv->owner()->view_state_changed();
1488                 break;
1489
1490         case LFUN_FREEFONT_APPLY:
1491                 apply_freefont(bv, this);
1492                 break;
1493
1494         case LFUN_FREEFONT_UPDATE:
1495                 update_and_apply_freefont(bv, this, cmd.argument);
1496                 break;
1497
1498         case LFUN_FINISHED_LEFT:
1499                 lyxerr << "swallow LFUN_FINISHED_LEFT" << endl;
1500                 if (rtl())
1501                         cursorRight(true);
1502                 break;
1503
1504         case LFUN_FINISHED_RIGHT:
1505                 lyxerr << "swallow LFUN_FINISHED_RIGHT" << endl;
1506                 if (!rtl())
1507                         cursorRight(true);
1508                 break;
1509
1510         case LFUN_FINISHED_UP:
1511                 lyxerr << "swallow LFUN_FINISHED_UP" << endl;
1512                 cursorUp(true);
1513                 break;
1514
1515         case LFUN_FINISHED_DOWN:
1516                 lyxerr << "swallow LFUN_FINISHED_DOWN" << endl;
1517                 cursorDown(true);
1518                 break;
1519
1520         default:
1521                 return DispatchResult(false);
1522         }
1523
1524         return DispatchResult(true, true);
1525 }