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Fix bug 2138: copy and paste should preserve formatting between different
[lyx.git] / src / text3.C
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 "BranchList.h"
21 #include "FloatList.h"
22 #include "FuncStatus.h"
23 #include "buffer.h"
24 #include "buffer_funcs.h"
25 #include "bufferparams.h"
26 #include "BufferView.h"
27 #include "bufferview_funcs.h"
28 #include "cursor.h"
29 #include "coordcache.h"
30 #include "CutAndPaste.h"
31 #include "debug.h"
32 #include "dispatchresult.h"
33 #include "errorlist.h"
34 #include "factory.h"
35 #include "funcrequest.h"
36 #include "gettext.h"
37 #include "intl.h"
38 #include "language.h"
39 #include "LyXAction.h"
40 #include "lyxfunc.h"
41 #include "lyxlex.h"
42 #include "lyxrc.h"
43 #include "lyxrow.h"
44 #include "paragraph.h"
45 #include "paragraph_funcs.h"
46 #include "ParagraphParameters.h"
47 #include "undo.h"
48 #include "vspace.h"
49 #include "pariterator.h"
50
51 #include "frontends/Clipboard.h"
52 #include "frontends/Selection.h"
53
54 #include "insets/insetcommand.h"
55 #include "insets/insetfloatlist.h"
56 #include "insets/insetnewline.h"
57 #include "insets/insetquotes.h"
58 #include "insets/insetspecialchar.h"
59 #include "insets/insettext.h"
60
61 #include "support/lstrings.h"
62 #include "support/lyxlib.h"
63 #include "support/convert.h"
64 #include "support/lyxtime.h"
65
66 #include "mathed/InsetMathHull.h"
67 #include "mathed/MathMacroTemplate.h"
68
69 #include <boost/current_function.hpp>
70
71 #include <clocale>
72 #include <sstream>
73
74
75 namespace lyx {
76
77 using cap::copySelection;
78 using cap::cutSelection;
79 using cap::pasteClipboard;
80 using cap::pasteSelection;
81 using cap::replaceSelection;
82
83 using support::isStrUnsignedInt;
84 using support::token;
85
86 using std::endl;
87 using std::string;
88 using std::istringstream;
89 using std::ostringstream;
90
91
92 extern string current_layout;
93
94
95 namespace {
96
97         // globals...
98         LyXFont freefont(LyXFont::ALL_IGNORE);
99         bool toggleall = false;
100
101
102         void toggleAndShow(LCursor & cur, LyXText * text,
103                 LyXFont const & font, bool toggleall = true)
104         {
105                 text->toggleFree(cur, font, toggleall);
106
107                 if (font.language() != ignore_language ||
108                                 font.number() != LyXFont::IGNORE) {
109                         Paragraph & par = cur.paragraph();
110                         text->bidi.computeTables(par, cur.buffer(), cur.textRow());
111                         if (cur.boundary() !=
112                                         text->bidi.isBoundary(cur.buffer(), par,
113                                                         cur.pos(),
114                                                         text->real_current_font))
115                                 text->setCursor(cur, cur.pit(), cur.pos(),
116                                                 false, !cur.boundary());
117                 }
118         }
119
120
121         void moveCursor(LCursor & cur, bool selecting)
122         {
123                 if (selecting || cur.mark())
124                         cur.setSelection();
125                 theSelection().haveSelection(cur.selection());
126                 cur.bv().switchKeyMap();
127         }
128
129
130         void finishChange(LCursor & cur, bool selecting)
131         {
132                 finishUndo();
133                 moveCursor(cur, selecting);
134         }
135
136
137         void mathDispatch(LCursor & cur, FuncRequest const & cmd, bool display)
138         {
139                 recordUndo(cur);
140                 docstring sel = cur.selectionAsString(false);
141                 //lyxerr << "selection is: '" << sel << "'" << endl;
142
143                 // It may happen that sel is empty but there is a selection
144                 replaceSelection(cur);
145
146                 if (sel.empty()) {
147 #ifdef ENABLE_ASSERTIONS
148                         const int old_pos = cur.pos();
149 #endif
150                         cur.insert(new InsetMathHull(hullSimple));
151                         BOOST_ASSERT(old_pos == cur.pos());
152                         cur.nextInset()->edit(cur, true);
153                         // don't do that also for LFUN_MATH_MODE
154                         // unless you want end up with always changing
155                         // to mathrm when opening an inlined inset --
156                         // I really hate "LyXfunc overloading"...
157                         if (display)
158                                 cur.dispatch(FuncRequest(LFUN_MATH_DISPLAY));
159                         // Avoid an unnecessary undo step if cmd.argument
160                         // is empty
161                         if (!cmd.argument().empty())
162                                 cur.dispatch(FuncRequest(LFUN_MATH_INSERT,
163                                                          cmd.argument()));
164                 } else {
165                         // create a macro if we see "\\newcommand"
166                         // somewhere, and an ordinary formula
167                         // otherwise
168                         if (sel.find(from_ascii("\\newcommand")) == string::npos
169                             && sel.find(from_ascii("\\def")) == string::npos)
170                         {
171                                 InsetMathHull * formula = new InsetMathHull;
172                                 istringstream is(to_utf8(sel));
173                                 LyXLex lex(0, 0);
174                                 lex.setStream(is);
175                                 formula->read(cur.buffer(), lex);
176                                 if (formula->getType() == hullNone)
177                                         // Don't create pseudo formulas if
178                                         // delimiters are left out
179                                         formula->mutate(hullSimple);
180                                 cur.insert(formula);
181                         } else {
182                                 cur.insert(new MathMacroTemplate(sel));
183                         }
184                 }
185                 cur.message(from_utf8(N_("Math editor mode")));
186         }
187
188 } // namespace anon
189
190
191
192 namespace bv_funcs {
193
194 string const freefont2string()
195 {
196         string data;
197         if (font2string(freefont, toggleall, data))
198                 return data;
199         return string();
200 }
201
202 }
203
204 void LyXText::cursorPrevious(LCursor & cur)
205 {
206         pos_type cpos = cur.pos();
207         pit_type cpar = cur.pit();
208
209         int x = cur.x_target();
210         setCursorFromCoordinates(cur, x, 0);
211         cur.dispatch(FuncRequest(cur.selection()? LFUN_UP_SELECT: LFUN_UP));
212
213         if (cpar == cur.pit() && cpos == cur.pos())
214                 // we have a row which is taller than the workarea. The
215                 // simplest solution is to move to the previous row instead.
216                 cur.dispatch(FuncRequest(cur.selection()? LFUN_UP_SELECT: LFUN_UP));
217
218         finishUndo();
219         cur.updateFlags(Update::Force | Update::FitCursor);
220 }
221
222
223 void LyXText::cursorNext(LCursor & cur)
224 {
225         pos_type cpos = cur.pos();
226         pit_type cpar = cur.pit();
227
228         int x = cur.x_target();
229         setCursorFromCoordinates(cur, x, cur.bv().workHeight() - 1);
230         cur.dispatch(FuncRequest(cur.selection()? LFUN_DOWN_SELECT: LFUN_DOWN));
231
232         if (cpar == cur.pit() && cpos == cur.pos())
233                 // we have a row which is taller than the workarea. The
234                 // simplest solution is to move to the next row instead.
235                 cur.dispatch(
236                         FuncRequest(cur.selection()? LFUN_DOWN_SELECT: LFUN_DOWN));
237
238         finishUndo();
239         cur.updateFlags(Update::Force | Update::FitCursor);
240 }
241
242
243 namespace {
244
245 void specialChar(LCursor & cur, InsetSpecialChar::Kind kind)
246 {
247         cap::replaceSelection(cur);
248         cur.insert(new InsetSpecialChar(kind));
249         cur.posRight();
250 }
251
252
253 bool doInsertInset(LCursor & cur, LyXText * text,
254         FuncRequest const & cmd, bool edit, bool pastesel)
255 {
256         InsetBase * inset = createInset(&cur.bv(), cmd);
257         if (!inset)
258                 return false;
259
260         recordUndo(cur);
261         bool gotsel = false;
262         if (cur.selection()) {
263                 lyx::dispatch(FuncRequest(LFUN_CUT));
264                 gotsel = true;
265         }
266         text->insertInset(cur, inset);
267
268         if (edit)
269                 inset->edit(cur, true);
270
271         if (gotsel && pastesel) {
272                 lyx::dispatch(FuncRequest(LFUN_PASTE, "0"));
273                 // reset first par to default
274                 if (cur.lastpit() != 0 || cur.lastpos() != 0) {
275                         LyXLayout_ptr const layout =
276                                 cur.buffer().params().getLyXTextClass().defaultLayout();
277                         cur.text()->paragraphs().begin()->layout(layout);
278                 }
279         }
280         return true;
281 }
282
283
284 } // anon namespace
285
286
287 void LyXText::number(LCursor & cur)
288 {
289         LyXFont font(LyXFont::ALL_IGNORE);
290         font.setNumber(LyXFont::TOGGLE);
291         toggleAndShow(cur, this, font);
292 }
293
294
295 bool LyXText::isRTL(Buffer const & buffer, Paragraph const & par) const
296 {
297         return par.isRightToLeftPar(buffer.params());
298 }
299
300
301 void LyXText::dispatch(LCursor & cur, FuncRequest & cmd)
302 {
303         lyxerr[Debug::ACTION] << "LyXText::dispatch: cmd: " << cmd << endl;
304
305         // FIXME: We use the update flag to indicates wether a singlePar or a
306         // full screen update is needed. We reset it here but shall we restore it
307         // at the end?
308         cur.noUpdate();
309
310         BOOST_ASSERT(cur.text() == this);
311         BufferView * bv = &cur.bv();
312         CursorSlice oldTopSlice = cur.top();
313         bool oldBoundary = cur.boundary();
314         bool sel = cur.selection();
315         // Signals that, even if needsUpdate == false, an update of the
316         // cursor paragraph is required
317         bool singleParUpdate = lyxaction.funcHasFlag(cmd.action,
318                 LyXAction::SingleParUpdate);
319         // Signals that a full-screen update is required
320         bool needsUpdate = !(lyxaction.funcHasFlag(cmd.action,
321                 LyXAction::NoUpdate) || singleParUpdate);
322         // Remember the old paragraph metric (_outer_ paragraph!)
323         ParagraphMetrics const & pm = cur.bv().parMetrics(
324                 cur.bottom().text(), cur.bottom().pit());
325         Dimension olddim = pm.dim();
326
327         switch (cmd.action) {
328
329         case LFUN_PARAGRAPH_MOVE_DOWN: {
330                 pit_type const pit = cur.pit();
331                 recUndo(cur, pit, pit + 1);
332                 finishUndo();
333                 std::swap(pars_[pit], pars_[pit + 1]);
334
335                 ParIterator begin(cur);
336                 ++cur.pit();
337                 ParIterator end = boost::next(ParIterator(cur));
338                 updateLabels(cur.buffer(), begin, end);
339
340                 needsUpdate = true;
341                 break;
342         }
343
344         case LFUN_PARAGRAPH_MOVE_UP: {
345                 pit_type const pit = cur.pit();
346                 recUndo(cur, pit - 1, pit);
347                 finishUndo();
348                 std::swap(pars_[pit], pars_[pit - 1]);
349
350                 ParIterator end = boost::next(ParIterator(cur));
351                 --cur.pit();
352                 ParIterator begin(cur);
353                 updateLabels(cur.buffer(), begin, end);
354
355                 needsUpdate = true;
356                 break;
357         }
358
359         case LFUN_APPENDIX: {
360                 Paragraph & par = cur.paragraph();
361                 bool start = !par.params().startOfAppendix();
362
363 #ifdef WITH_WARNINGS
364 #warning The code below only makes sense at top level.
365 // Should LFUN_APPENDIX be restricted to top-level paragraphs?
366 #endif
367                 // ensure that we have only one start_of_appendix in this document
368                 for (pit_type tmp = 0, end = pars_.size(); tmp != end; ++tmp) {
369                         if (pars_[tmp].params().startOfAppendix()) {
370                                 recUndo(cur, tmp);
371                                 pars_[tmp].params().startOfAppendix(false);
372                                 break;
373                         }
374                 }
375
376                 recordUndo(cur);
377                 par.params().startOfAppendix(start);
378
379                 // we can set the refreshing parameters now
380                 updateLabels(cur.buffer());
381                 break;
382         }
383
384         case LFUN_WORD_DELETE_FORWARD:
385                 cur.clearSelection();
386                 deleteWordForward(cur);
387                 finishChange(cur, false);
388                 break;
389
390         case LFUN_WORD_DELETE_BACKWARD:
391                 cur.clearSelection();
392                 deleteWordBackward(cur);
393                 finishChange(cur, false);
394                 break;
395
396         case LFUN_LINE_DELETE:
397                 cur.clearSelection();
398                 deleteLineForward(cur);
399                 finishChange(cur, false);
400                 break;
401
402         case LFUN_BUFFER_BEGIN:
403         case LFUN_BUFFER_BEGIN_SELECT:
404                 needsUpdate |= cur.selHandle(cmd.action == LFUN_BUFFER_BEGIN_SELECT);
405                 if (cur.depth() == 1) {
406                         needsUpdate |= cursorTop(cur);
407                 } else {
408                         cur.undispatched();
409                 }
410                 break;
411
412         case LFUN_BUFFER_END:
413         case LFUN_BUFFER_END_SELECT:
414                 needsUpdate |= cur.selHandle(cmd.action == LFUN_BUFFER_END_SELECT);
415                 if (cur.depth() == 1) {
416                         needsUpdate |= cursorBottom(cur);
417                 } else {
418                         cur.undispatched();
419                 }
420                 break;
421
422         case LFUN_CHAR_FORWARD:
423         case LFUN_CHAR_FORWARD_SELECT:
424                 //lyxerr << BOOST_CURRENT_FUNCTION
425                 //       << " LFUN_CHAR_FORWARD[SEL]:\n" << cur << endl;
426                 needsUpdate |= cur.selHandle(cmd.action == LFUN_CHAR_FORWARD_SELECT);
427                 if (isRTL(*cur.bv().buffer(), cur.paragraph()))
428                         needsUpdate |= cursorLeft(cur);
429                 else
430                         needsUpdate |= cursorRight(cur);
431
432                 if (!needsUpdate && oldTopSlice == cur.top()
433                                 && cur.boundary() == oldBoundary) {
434                         cur.undispatched();
435                         cmd = FuncRequest(LFUN_FINISHED_RIGHT);
436                 }
437                 break;
438
439         case LFUN_CHAR_BACKWARD:
440         case LFUN_CHAR_BACKWARD_SELECT:
441                 //lyxerr << "handle LFUN_CHAR_BACKWARD[_SELECT]:\n" << cur << endl;
442                 needsUpdate |= cur.selHandle(cmd.action == LFUN_CHAR_BACKWARD_SELECT);
443                 if (isRTL(*cur.bv().buffer(), cur.paragraph()))
444                         needsUpdate |= cursorRight(cur);
445                 else
446                         needsUpdate |= cursorLeft(cur);
447
448                 if (!needsUpdate && oldTopSlice == cur.top()
449                         && cur.boundary() == oldBoundary) {
450                         cur.undispatched();
451                         cmd = FuncRequest(LFUN_FINISHED_LEFT);
452                 }
453                 break;
454
455         case LFUN_UP:
456         case LFUN_UP_SELECT:
457                 //lyxerr << "handle LFUN_UP[SEL]:\n" << cur << endl;
458                 needsUpdate |= cur.selHandle(cmd.action == LFUN_UP_SELECT);
459
460                 needsUpdate |= cursorUp(cur);
461
462                 if (!needsUpdate && oldTopSlice == cur.top()
463                           && cur.boundary() == oldBoundary) {
464                         cur.undispatched();
465                         cmd = FuncRequest(LFUN_FINISHED_UP);
466                 }
467                 break;
468
469         case LFUN_DOWN:
470         case LFUN_DOWN_SELECT:
471                 //lyxerr << "handle LFUN_DOWN[SEL]:\n" << cur << endl;
472                 needsUpdate |= cur.selHandle(cmd.action == LFUN_DOWN_SELECT);
473                 needsUpdate |= cursorDown(cur);
474
475                 if (!needsUpdate && oldTopSlice == cur.top() &&
476                     cur.boundary() == oldBoundary)
477                 {
478                         cur.undispatched();
479                         cmd = FuncRequest(LFUN_FINISHED_DOWN);
480                 }
481                 break;
482
483         case LFUN_PARAGRAPH_UP:
484         case LFUN_PARAGRAPH_UP_SELECT:
485                 needsUpdate |= cur.selHandle(cmd.action == LFUN_PARAGRAPH_UP_SELECT);
486                 needsUpdate |= cursorUpParagraph(cur);
487                 break;
488
489         case LFUN_PARAGRAPH_DOWN:
490         case LFUN_PARAGRAPH_DOWN_SELECT:
491                 needsUpdate |= cur.selHandle(cmd.action == LFUN_PARAGRAPH_DOWN_SELECT);
492                 needsUpdate |= cursorDownParagraph(cur);
493                 break;
494
495         case LFUN_SCREEN_UP:
496         case LFUN_SCREEN_UP_SELECT:
497                 needsUpdate |= cur.selHandle(cmd.action == LFUN_SCREEN_UP_SELECT);
498                 if (cur.pit() == 0 && cur.textRow().pos() == 0) {
499                         cur.undispatched();
500                         cmd = FuncRequest(LFUN_FINISHED_UP);
501                 } else {
502                         cursorPrevious(cur);
503                 }
504                 break;
505
506         case LFUN_SCREEN_DOWN:
507         case LFUN_SCREEN_DOWN_SELECT:
508                 needsUpdate |= cur.selHandle(cmd.action == LFUN_SCREEN_DOWN_SELECT);
509                 if (cur.pit() == cur.lastpit()
510                           && cur.textRow().endpos() == cur.lastpos()) {
511                         cur.undispatched();
512                         cmd = FuncRequest(LFUN_FINISHED_DOWN);
513                 } else {
514                         cursorNext(cur);
515                 }
516                 break;
517
518         case LFUN_LINE_BEGIN:
519         case LFUN_LINE_BEGIN_SELECT:
520                 needsUpdate |= cur.selHandle(cmd.action == LFUN_LINE_BEGIN_SELECT);
521                 needsUpdate |= cursorHome(cur);
522                 break;
523
524         case LFUN_LINE_END:
525         case LFUN_LINE_END_SELECT:
526                 needsUpdate |= cur.selHandle(cmd.action == LFUN_LINE_END_SELECT);
527                 needsUpdate |= cursorEnd(cur);
528                 break;
529
530         case LFUN_WORD_FORWARD:
531         case LFUN_WORD_FORWARD_SELECT:
532                 needsUpdate |= cur.selHandle(cmd.action == LFUN_WORD_FORWARD_SELECT);
533                 if (isRTL(*cur.bv().buffer(), cur.paragraph()))
534                         needsUpdate |= cursorLeftOneWord(cur);
535                 else
536                         needsUpdate |= cursorRightOneWord(cur);
537                 break;
538
539         case LFUN_WORD_BACKWARD:
540         case LFUN_WORD_BACKWARD_SELECT:
541                 needsUpdate |= cur.selHandle(cmd.action == LFUN_WORD_BACKWARD_SELECT);
542                 if (isRTL(*cur.bv().buffer(), cur.paragraph()))
543                         needsUpdate |= cursorRightOneWord(cur);
544                 else
545                         needsUpdate |= cursorLeftOneWord(cur);
546                 break;
547
548         case LFUN_WORD_SELECT: {
549                 selectWord(cur, WHOLE_WORD);
550                 finishChange(cur, true);
551                 break;
552         }
553
554         case LFUN_BREAK_LINE: {
555                 // Not allowed by LaTeX (labels or empty par)
556                 if (cur.pos() > cur.paragraph().beginOfBody()) {
557                         cap::replaceSelection(cur);
558                         cur.insert(new InsetNewline);
559                         cur.posRight();
560                         moveCursor(cur, false);
561                 }
562                 break;
563         }
564
565         case LFUN_CHAR_DELETE_FORWARD:
566                 if (!cur.selection()) {
567                         if (cur.pos() == cur.paragraph().size())
568                                 // Par boundary, force full-screen update
569                                 singleParUpdate = false;
570                         needsUpdate |= erase(cur);
571                         cur.resetAnchor();
572                         // It is possible to make it a lot faster still
573                         // just comment out the line below...
574                 } else {
575                         cutSelection(cur, true, false);
576                         singleParUpdate = false;
577                 }
578                 moveCursor(cur, false);
579                 break;
580
581         case LFUN_DELETE_FORWARD_SKIP:
582                 // Reverse the effect of LFUN_BREAK_PARAGRAPH_SKIP.
583                 if (!cur.selection()) {
584                         if (cur.pos() == cur.lastpos()) {
585                                 cursorRight(cur);
586                                 cursorLeft(cur);
587                         }
588                         erase(cur);
589                         cur.resetAnchor();
590                 } else {
591                         cutSelection(cur, true, false);
592                 }
593                 break;
594
595
596         case LFUN_CHAR_DELETE_BACKWARD:
597                 if (!cur.selection()) {
598                         if (bv->getIntl().getTransManager().backspace()) {
599                                 // Par boundary, full-screen update
600                                 if (cur.pos() == 0)
601                                         singleParUpdate = false;
602                                 needsUpdate |= backspace(cur);
603                                 cur.resetAnchor();
604                                 // It is possible to make it a lot faster still
605                                 // just comment out the line below...
606                         }
607                 } else {
608                         cutSelection(cur, true, false);
609                         singleParUpdate = false;
610                 }
611                 bv->switchKeyMap();
612                 break;
613
614         case LFUN_DELETE_BACKWARD_SKIP:
615                 // Reverse the effect of LFUN_BREAK_PARAGRAPH_SKIP.
616                 if (!cur.selection()) {
617 #ifdef WITH_WARNINGS
618 #warning look here
619 #endif
620                         //CursorSlice cur = cursor();
621                         backspace(cur);
622                         //anchor() = cur;
623                 } else {
624                         cutSelection(cur, true, false);
625                 }
626                 break;
627
628         case LFUN_BREAK_PARAGRAPH:
629                 cap::replaceSelection(cur);
630                 breakParagraph(cur, 0);
631                 cur.resetAnchor();
632                 bv->switchKeyMap();
633                 break;
634
635         case LFUN_BREAK_PARAGRAPH_KEEP_LAYOUT:
636                 cap::replaceSelection(cur);
637                 breakParagraph(cur, 1);
638                 cur.resetAnchor();
639                 bv->switchKeyMap();
640                 break;
641
642         case LFUN_BREAK_PARAGRAPH_SKIP: {
643                 // When at the beginning of a paragraph, remove
644                 // indentation.  Otherwise, do the same as LFUN_BREAK_PARAGRAPH.
645                 cap::replaceSelection(cur);
646                 if (cur.pos() == 0)
647                         cur.paragraph().params().labelWidthString(docstring());
648                 else
649                         breakParagraph(cur, 0);
650                 cur.resetAnchor();
651                 bv->switchKeyMap();
652                 break;
653         }
654
655         case LFUN_PARAGRAPH_SPACING: {
656                 Paragraph & par = cur.paragraph();
657                 Spacing::Space cur_spacing = par.params().spacing().getSpace();
658                 string cur_value = "1.0";
659                 if (cur_spacing == Spacing::Other)
660                         cur_value = par.params().spacing().getValueAsString();
661
662                 istringstream is(to_utf8(cmd.argument()));
663                 string tmp;
664                 is >> tmp;
665                 Spacing::Space new_spacing = cur_spacing;
666                 string new_value = cur_value;
667                 if (tmp.empty()) {
668                         lyxerr << "Missing argument to `paragraph-spacing'"
669                                << endl;
670                 } else if (tmp == "single") {
671                         new_spacing = Spacing::Single;
672                 } else if (tmp == "onehalf") {
673                         new_spacing = Spacing::Onehalf;
674                 } else if (tmp == "double") {
675                         new_spacing = Spacing::Double;
676                 } else if (tmp == "other") {
677                         new_spacing = Spacing::Other;
678                         string tmpval = "0.0";
679                         is >> tmpval;
680                         lyxerr << "new_value = " << tmpval << endl;
681                         if (tmpval != "0.0")
682                                 new_value = tmpval;
683                 } else if (tmp == "default") {
684                         new_spacing = Spacing::Default;
685                 } else {
686                         lyxerr << to_utf8(_("Unknown spacing argument: "))
687                                << to_utf8(cmd.argument()) << endl;
688                 }
689                 if (cur_spacing != new_spacing || cur_value != new_value)
690                         par.params().spacing(Spacing(new_spacing, new_value));
691                 break;
692         }
693
694         case LFUN_INSET_INSERT: {
695                 recordUndo(cur);
696                 InsetBase * inset = createInset(bv, cmd);
697                 if (inset) {
698                         insertInset(cur, inset);
699                         cur.posRight();
700                 }
701                 break;
702         }
703
704         case LFUN_INSET_DISSOLVE:
705                 needsUpdate |= dissolveInset(cur);
706                 break;
707
708         case LFUN_INSET_SETTINGS:
709                 cur.inset().showInsetDialog(bv);
710                 break;
711
712         case LFUN_SPACE_INSERT:
713                 if (cur.paragraph().layout()->free_spacing)
714                         insertChar(cur, ' ');
715                 else {
716                         doInsertInset(cur, this, cmd, false, false);
717                         cur.posRight();
718                 }
719                 moveCursor(cur, false);
720                 break;
721
722         case LFUN_HYPHENATION_POINT_INSERT:
723                 specialChar(cur, InsetSpecialChar::HYPHENATION);
724                 break;
725
726         case LFUN_LIGATURE_BREAK_INSERT:
727                 specialChar(cur, InsetSpecialChar::LIGATURE_BREAK);
728                 break;
729
730         case LFUN_DOTS_INSERT:
731                 specialChar(cur, InsetSpecialChar::LDOTS);
732                 break;
733
734         case LFUN_END_OF_SENTENCE_PERIOD_INSERT:
735                 specialChar(cur, InsetSpecialChar::END_OF_SENTENCE);
736                 break;
737
738         case LFUN_MENU_SEPARATOR_INSERT:
739                 specialChar(cur, InsetSpecialChar::MENU_SEPARATOR);
740                 break;
741
742         case LFUN_WORD_UPCASE:
743                 changeCase(cur, LyXText::text_uppercase);
744                 break;
745
746         case LFUN_WORD_LOWCASE:
747                 changeCase(cur, LyXText::text_lowercase);
748                 break;
749
750         case LFUN_WORD_CAPITALIZE:
751                 changeCase(cur, LyXText::text_capitalization);
752                 break;
753
754         case LFUN_CHARS_TRANSPOSE:
755                 charsTranspose(cur);
756                 break;
757
758         case LFUN_PASTE:
759                 cur.message(_("Paste"));
760                 cap::replaceSelection(cur);
761                 if (cmd.argument().empty() && !theClipboard().isInternal())
762                         pasteClipboard(cur, bv->buffer()->errorList("Paste"));
763                 else {
764                         string const arg(to_utf8(cmd.argument()));
765                         pasteSelection(cur, bv->buffer()->errorList("Paste"),
766                                         isStrUnsignedInt(arg) ?
767                                                 convert<unsigned int>(arg) :
768                                                 0);
769                 }
770                 bv->buffer()->errors("Paste");
771                 cur.clearSelection(); // bug 393
772                 bv->switchKeyMap();
773                 finishUndo();
774                 break;
775
776         case LFUN_CUT:
777                 cutSelection(cur, true, true);
778                 cur.message(_("Cut"));
779                 break;
780
781         case LFUN_COPY:
782                 copySelection(cur);
783                 cur.message(_("Copy"));
784                 break;
785
786         case LFUN_SERVER_GET_XY:
787                 cur.message(from_utf8(
788                         convert<string>(cursorX(cur.bv(), cur.top(), cur.boundary()))
789                         + ' ' + convert<string>(cursorY(cur.bv(), cur.top(), cur.boundary()))));
790                 break;
791
792         case LFUN_SERVER_SET_XY: {
793                 int x = 0;
794                 int y = 0;
795                 istringstream is(to_utf8(cmd.argument()));
796                 is >> x >> y;
797                 if (!is)
798                         lyxerr << "SETXY: Could not parse coordinates in '"
799                                << to_utf8(cmd.argument()) << std::endl;
800                 else
801                         setCursorFromCoordinates(cur, x, y);
802                 break;
803         }
804
805         case LFUN_SERVER_GET_FONT:
806                 if (current_font.shape() == LyXFont::ITALIC_SHAPE)
807                         cur.message(from_ascii("E"));
808                 else if (current_font.shape() == LyXFont::SMALLCAPS_SHAPE)
809                         cur.message(from_ascii("N"));
810                 else
811                         cur.message(from_ascii("0"));
812                 break;
813
814         case LFUN_SERVER_GET_LAYOUT:
815                 cur.message(from_utf8(cur.paragraph().layout()->name()));
816                 break;
817
818         case LFUN_LAYOUT: {
819                 string layout = to_ascii(cmd.argument());
820                 lyxerr[Debug::INFO] << "LFUN_LAYOUT: (arg) " << layout << endl;
821
822                 // Derive layout number from given argument (string)
823                 // and current buffer's textclass (number)
824                 LyXTextClass const & tclass = bv->buffer()->params().getLyXTextClass();
825                 if (layout.empty())
826                         layout = tclass.defaultLayoutName();
827                 bool hasLayout = tclass.hasLayout(layout);
828
829                 // If the entry is obsolete, use the new one instead.
830                 if (hasLayout) {
831                         string const & obs = tclass[layout]->obsoleted_by();
832                         if (!obs.empty())
833                                 layout = obs;
834                 }
835
836                 if (!hasLayout) {
837                         cur.errorMessage(from_utf8(N_("Layout ")) + cmd.argument() +
838                                 from_utf8(N_(" not known")));
839                         break;
840                 }
841
842                 bool change_layout = (current_layout != layout);
843
844                 if (!change_layout && cur.selection() &&
845                         cur.selBegin().pit() != cur.selEnd().pit())
846                 {
847                         pit_type spit = cur.selBegin().pit();
848                         pit_type epit = cur.selEnd().pit() + 1;
849                         while (spit != epit) {
850                                 if (pars_[spit].layout()->name() != current_layout) {
851                                         change_layout = true;
852                                         break;
853                                 }
854                                 ++spit;
855                         }
856                 }
857
858                 if (change_layout) {
859                         current_layout = layout;
860                         setLayout(cur, layout);
861                         // inform the GUI that the layout has changed.
862                         bv->layoutChanged(layout);
863                         bv->switchKeyMap();
864                 }
865                 break;
866         }
867
868         case LFUN_CLIPBOARD_PASTE:
869                 cur.clearSelection();
870                 pasteClipboard(cur, bv->buffer()->errorList("Paste"),
871                                cmd.argument() == "paragraph");
872                 bv->buffer()->errors("Paste");
873                 break;
874
875         case LFUN_PRIMARY_SELECTION_PASTE:
876                 pasteString(cur, theSelection().get(),
877                             cmd.argument() == "paragraph");
878                 break;
879
880         case LFUN_UNICODE_INSERT: {
881                 if (cmd.argument().empty())
882                         break;
883                 docstring hexstring = cmd.argument();
884                 if (lyx::support::isHex(hexstring)) {
885                         char_type c = lyx::support::hexToInt(hexstring);
886                         if (c > 32 && c < 0x10ffff) {
887                                 lyxerr << "Inserting c: " << c << endl;
888                                 docstring s = docstring(1, c);
889                                 lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, s));
890                         }
891                 }
892                 break;
893         }
894                 
895         case LFUN_QUOTE_INSERT: {
896                 cap::replaceSelection(cur);
897                 Paragraph & par = cur.paragraph();
898                 pos_type pos = cur.pos();
899                 char_type c;
900                 if (pos == 0)
901                         c = ' ';
902                 else if (cur.prevInset() && cur.prevInset()->isSpace())
903                         c = ' ';
904                 else
905                         c = par.getChar(pos - 1);
906
907                 LyXLayout_ptr const & style = par.layout();
908
909                 BufferParams const & bufparams = bv->buffer()->params();
910                 if (!style->pass_thru
911                     && par.getFontSettings(bufparams, pos).language()->lang() != "hebrew") {
912                         string arg = to_utf8(cmd.argument());
913                         if (arg == "single")
914                                 cur.insert(new InsetQuotes(c,
915                                     bufparams.quotes_language,
916                                     InsetQuotes::SingleQ));
917                         else
918                                 cur.insert(new InsetQuotes(c,
919                                     bufparams.quotes_language,
920                                     InsetQuotes::DoubleQ));
921                         cur.posRight();
922                 }
923                 else
924                         lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, "\""));
925                 break;
926         }
927
928         case LFUN_DATE_INSERT:
929                 if (cmd.argument().empty())
930                         lyx::dispatch(FuncRequest(LFUN_SELF_INSERT,
931                                 formatted_time(current_time())));
932                 else
933                         lyx::dispatch(FuncRequest(LFUN_SELF_INSERT,
934                                 formatted_time(current_time(), to_utf8(cmd.argument()))));
935                 break;
936
937         case LFUN_MOUSE_TRIPLE:
938                 if (cmd.button() == mouse_button::button1) {
939                         cursorHome(cur);
940                         cur.resetAnchor();
941                         cursorEnd(cur);
942                         cur.setSelection();
943                         bv->cursor() = cur;
944                         theSelection().haveSelection(cur.selection());
945                 }
946                 break;
947
948         case LFUN_MOUSE_DOUBLE:
949                 if (cmd.button() == mouse_button::button1) {
950                         selectWord(cur, WHOLE_WORD_STRICT);
951                         bv->cursor() = cur;
952                         theSelection().haveSelection(cur.selection());
953                 }
954                 break;
955
956         // Single-click on work area
957         case LFUN_MOUSE_PRESS: {
958                 // Right click on a footnote flag opens float menu
959                 if (cmd.button() == mouse_button::button3)
960                         cur.clearSelection();
961
962                 // Middle button press pastes if we have a selection
963                 // We do this here as if the selection was inside an inset
964                 // it could get cleared on the unlocking of the inset so
965                 // we have to check this first
966                 bool paste_internally = false;
967                 if (cmd.button() == mouse_button::button2 && cur.selection()) {
968                         // Copy the selection to the clipboard stack. This
969                         // is done for two reasons:
970                         // - We want it to appear in the "Edit->Paste recent"
971                         //   menu.
972                         // - We can then use the normal copy/paste machinery
973                         //   instead of theSelection().get() to preserve
974                         //   formatting of the pasted stuff.
975                         cap::copySelectionToStack(cur.bv().cursor());
976                         paste_internally = true;
977                 }
978
979                 // we have to update after dePM triggered
980                 bool update = bv->mouseSetCursor(cur);
981
982                 // Insert primary selection with middle mouse
983                 // if there is a local selection in the current buffer,
984                 // insert this
985                 if (cmd.button() == mouse_button::button2) {
986                         if (paste_internally)
987                                 lyx::dispatch(FuncRequest(LFUN_PASTE, "0"));
988                         else
989                                 lyx::dispatch(FuncRequest(LFUN_PRIMARY_SELECTION_PASTE, "paragraph"));
990                 }
991
992                 if (!update && cmd.button() == mouse_button::button1) {
993                         needsUpdate = false;
994                         cur.noUpdate();
995                 }
996
997                 break;
998         }
999
1000         case LFUN_MOUSE_MOTION: {
1001                 // Only use motion with button 1
1002                 //if (cmd.button() != mouse_button::button1)
1003                 //      return false;
1004
1005                 // ignore motions deeper nested than the real anchor
1006                 LCursor & bvcur = cur.bv().cursor();
1007                 if (bvcur.anchor_.hasPart(cur)) {
1008                         CursorSlice old = bvcur.top();
1009
1010                         int const wh = bv->workHeight();
1011                         int const y = std::max(0, std::min(wh - 1, cmd.y));
1012
1013                         setCursorFromCoordinates(cur, cmd.x, y);
1014                         cur.x_target() = cmd.x;
1015                         if (cmd.y >= wh)
1016                                 lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1017                         else if (cmd.y < 0)
1018                                 lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1019                         // This is to allow jumping over large insets
1020                         if (cur.top() == old) {
1021                                 if (cmd.y >= wh)
1022                                         lyx::dispatch(FuncRequest(LFUN_DOWN_SELECT));
1023                                 else if (cmd.y < 0)
1024                                         lyx::dispatch(FuncRequest(LFUN_UP_SELECT));
1025                         }
1026
1027                         if (cur.top() == old)
1028                                 cur.noUpdate();
1029                         else {
1030                                 // don't set anchor_
1031                                 bvcur.setCursor(cur);
1032                                 bvcur.selection() = true;
1033                                 //lyxerr << "MOTION: " << bv->cursor() << endl;
1034                         }
1035
1036                 } else
1037                         cur.undispatched();
1038                 break;
1039         }
1040
1041         case LFUN_MOUSE_RELEASE: {
1042                 if (cmd.button() == mouse_button::button2)
1043                         break;
1044
1045                 // finish selection
1046                 if (cmd.button() == mouse_button::button1) {
1047                         if (cur.selection())
1048                                 theSelection().haveSelection(true);
1049                         needsUpdate = false;
1050                         cur.noUpdate();
1051                 }
1052
1053                 bv->switchKeyMap();
1054                 break;
1055         }
1056
1057         case LFUN_SELF_INSERT: {
1058                 if (cmd.argument().empty())
1059                         break;
1060
1061                 // Automatically delete the currently selected
1062                 // text and replace it with what is being
1063                 // typed in now. Depends on lyxrc settings
1064                 // "auto_region_delete", which defaults to
1065                 // true (on).
1066
1067                 if (lyxrc.auto_region_delete) {
1068                         if (cur.selection())
1069                                 cutSelection(cur, false, false);
1070                                 // cutSelection clears the X selection.
1071                         else
1072                                 theSelection().haveSelection(false);
1073                 }
1074
1075                 cur.clearSelection();
1076                 LyXFont const old_font = real_current_font;
1077
1078                 docstring::const_iterator cit = cmd.argument().begin();
1079                 docstring::const_iterator end = cmd.argument().end();
1080                 for (; cit != end; ++cit)
1081 #if 0
1082                         bv->getIntl().getTransManager().
1083                                 translateAndInsert(*cit, this);
1084 #else
1085                         insertChar(bv->cursor(), *cit);
1086 #endif
1087
1088                 cur.resetAnchor();
1089                 moveCursor(cur, false);
1090                 break;
1091         }
1092
1093         case LFUN_URL_INSERT: {
1094                 InsetCommandParams p("url");
1095                 string const data = InsetCommandMailer::params2string("url", p);
1096                 bv->showInsetDialog("url", data, 0);
1097                 break;
1098         }
1099
1100         case LFUN_HTML_INSERT: {
1101                 InsetCommandParams p("htmlurl");
1102                 string const data = InsetCommandMailer::params2string("url", p);
1103                 bv->showInsetDialog("url", data, 0);
1104                 break;
1105         }
1106
1107         case LFUN_LABEL_INSERT: {
1108                 InsetCommandParams p("label");
1109                 // Try to generate a valid label
1110                 p["name"] = (cmd.argument().empty()) ?
1111                         cur.getPossibleLabel() :
1112                         cmd.argument();
1113                 string const data = InsetCommandMailer::params2string("label", p);
1114
1115                 if (cmd.argument().empty()) {
1116                         bv->showInsetDialog("label", data, 0);
1117                 } else {
1118                         FuncRequest fr(LFUN_INSET_INSERT, data);
1119                         dispatch(cur, fr);
1120                 }
1121                 break;
1122         }
1123
1124
1125 #if 0
1126         case LFUN_LIST_INSERT:
1127         case LFUN_THEOREM_INSERT:
1128         case LFUN_CAPTION_INSERT:
1129 #endif
1130         case LFUN_NOTE_INSERT:
1131         case LFUN_CHARSTYLE_INSERT:
1132         case LFUN_BOX_INSERT:
1133         case LFUN_BRANCH_INSERT:
1134         case LFUN_BIBITEM_INSERT:
1135         case LFUN_ERT_INSERT:
1136         case LFUN_FOOTNOTE_INSERT:
1137         case LFUN_MARGINALNOTE_INSERT:
1138         case LFUN_OPTIONAL_INSERT:
1139         case LFUN_ENVIRONMENT_INSERT:
1140                 // Open the inset, and move the current selection
1141                 // inside it.
1142                 doInsertInset(cur, this, cmd, true, true);
1143                 cur.posRight();
1144                 break;
1145
1146         case LFUN_TABULAR_INSERT:
1147                 // if there were no arguments, just open the dialog
1148                 if (doInsertInset(cur, this, cmd, false, true))
1149                         cur.posRight();
1150                 else
1151                         bv->showDialog("tabularcreate");
1152
1153                 break;
1154
1155         case LFUN_FLOAT_INSERT:
1156         case LFUN_FLOAT_WIDE_INSERT:
1157         case LFUN_WRAP_INSERT:
1158                 doInsertInset(cur, this, cmd, true, true);
1159                 cur.posRight();
1160                 // FIXME: the "Caption" name should not be hardcoded,
1161                 // but given by the float definition.
1162                 cur.dispatch(FuncRequest(LFUN_LAYOUT, "Caption"));
1163                 break;
1164
1165         case LFUN_INDEX_INSERT:
1166         case LFUN_NOMENCL_INSERT: {
1167                 InsetBase * inset = createInset(&cur.bv(), cmd);
1168                 if (!inset)
1169                         break;
1170
1171                 recordUndo(cur);
1172                 cur.clearSelection();
1173                 insertInset(cur, inset);
1174                 inset->edit(cur, true);
1175                 // Show the dialog for the nomenclature entry, since the
1176                 // description entry still needs to be filled in.
1177                 if (cmd.action == LFUN_NOMENCL_INSERT)
1178                         InsetCommandMailer("nomenclature",
1179                                 *reinterpret_cast<InsetCommand *>(inset)).showDialog(&cur.bv());
1180                 cur.posRight();
1181                 break;
1182         }
1183
1184         case LFUN_INDEX_PRINT:
1185         case LFUN_NOMENCL_PRINT:
1186         case LFUN_TOC_INSERT:
1187         case LFUN_HFILL_INSERT:
1188         case LFUN_LINE_INSERT:
1189         case LFUN_PAGEBREAK_INSERT:
1190         case LFUN_CLEARPAGE_INSERT:
1191         case LFUN_CLEARDOUBLEPAGE_INSERT:
1192                 // do nothing fancy
1193                 doInsertInset(cur, this, cmd, false, false);
1194                 cur.posRight();
1195                 break;
1196
1197         case LFUN_DEPTH_DECREMENT:
1198                 changeDepth(cur, DEC_DEPTH);
1199                 break;
1200
1201         case LFUN_DEPTH_INCREMENT:
1202                 changeDepth(cur, INC_DEPTH);
1203                 break;
1204
1205         case LFUN_MATH_DISPLAY:
1206                 mathDispatch(cur, cmd, true);
1207                 break;
1208
1209         case LFUN_MATH_IMPORT_SELECTION:
1210         case LFUN_MATH_MODE:
1211                 if (cmd.argument() == "on")
1212                         // don't pass "on" as argument
1213                         mathDispatch(cur, FuncRequest(LFUN_MATH_MODE), false);
1214                 else
1215                         mathDispatch(cur, cmd, false);
1216                 break;
1217
1218         case LFUN_MATH_MACRO:
1219                 if (cmd.argument().empty())
1220                         cur.errorMessage(from_utf8(N_("Missing argument")));
1221                 else {
1222                         string s = to_utf8(cmd.argument());
1223                         string const s1 = token(s, ' ', 1);
1224                         int const nargs = s1.empty() ? 0 : convert<int>(s1);
1225                         string const s2 = token(s, ' ', 2);
1226                         string const type = s2.empty() ? "newcommand" : s2;
1227                         cur.insert(new MathMacroTemplate(from_utf8(token(s, ' ', 0)), nargs, from_utf8(type)));
1228                         //cur.nextInset()->edit(cur, true);
1229                 }
1230                 break;
1231
1232         // passthrough hat and underscore outside mathed:
1233         case LFUN_MATH_SUBSCRIPT:
1234                 mathDispatch(cur, FuncRequest(LFUN_SELF_INSERT, "_"), false);
1235                 break;
1236         case LFUN_MATH_SUPERSCRIPT:
1237                 mathDispatch(cur, FuncRequest(LFUN_SELF_INSERT, "^"), false);
1238                 break;
1239
1240         case LFUN_MATH_INSERT:
1241         case LFUN_MATH_MATRIX:
1242         case LFUN_MATH_DELIM:
1243         case LFUN_MATH_BIGDELIM: {
1244                 cur.insert(new InsetMathHull(hullSimple));
1245                 cur.dispatch(FuncRequest(LFUN_CHAR_FORWARD));
1246                 cur.dispatch(cmd);
1247                 break;
1248         }
1249
1250         case LFUN_FONT_EMPH: {
1251                 LyXFont font(LyXFont::ALL_IGNORE);
1252                 font.setEmph(LyXFont::TOGGLE);
1253                 toggleAndShow(cur, this, font);
1254                 break;
1255         }
1256
1257         case LFUN_FONT_BOLD: {
1258                 LyXFont font(LyXFont::ALL_IGNORE);
1259                 font.setSeries(LyXFont::BOLD_SERIES);
1260                 toggleAndShow(cur, this, font);
1261                 break;
1262         }
1263
1264         case LFUN_FONT_NOUN: {
1265                 LyXFont font(LyXFont::ALL_IGNORE);
1266                 font.setNoun(LyXFont::TOGGLE);
1267                 toggleAndShow(cur, this, font);
1268                 break;
1269         }
1270
1271         case LFUN_FONT_CODE: {
1272                 LyXFont font(LyXFont::ALL_IGNORE);
1273                 font.setFamily(LyXFont::TYPEWRITER_FAMILY); // no good
1274                 toggleAndShow(cur, this, font);
1275                 break;
1276         }
1277
1278         case LFUN_FONT_SANS: {
1279                 LyXFont font(LyXFont::ALL_IGNORE);
1280                 font.setFamily(LyXFont::SANS_FAMILY);
1281                 toggleAndShow(cur, this, font);
1282                 break;
1283         }
1284
1285         case LFUN_FONT_ROMAN: {
1286                 LyXFont font(LyXFont::ALL_IGNORE);
1287                 font.setFamily(LyXFont::ROMAN_FAMILY);
1288                 toggleAndShow(cur, this, font);
1289                 break;
1290         }
1291
1292         case LFUN_FONT_DEFAULT: {
1293                 LyXFont font(LyXFont::ALL_INHERIT, ignore_language);
1294                 toggleAndShow(cur, this, font);
1295                 break;
1296         }
1297
1298         case LFUN_FONT_UNDERLINE: {
1299                 LyXFont font(LyXFont::ALL_IGNORE);
1300                 font.setUnderbar(LyXFont::TOGGLE);
1301                 toggleAndShow(cur, this, font);
1302                 break;
1303         }
1304
1305         case LFUN_FONT_SIZE: {
1306                 LyXFont font(LyXFont::ALL_IGNORE);
1307                 font.setLyXSize(to_utf8(cmd.argument()));
1308                 toggleAndShow(cur, this, font);
1309                 break;
1310         }
1311
1312         case LFUN_LANGUAGE: {
1313                 Language const * lang = languages.getLanguage(to_utf8(cmd.argument()));
1314                 if (!lang)
1315                         break;
1316                 LyXFont font(LyXFont::ALL_IGNORE);
1317                 font.setLanguage(lang);
1318                 toggleAndShow(cur, this, font);
1319                 bv->switchKeyMap();
1320                 break;
1321         }
1322
1323         case LFUN_FONT_FREE_APPLY:
1324                 toggleAndShow(cur, this, freefont, toggleall);
1325                 cur.message(_("Character set"));
1326                 break;
1327
1328         // Set the freefont using the contents of \param data dispatched from
1329         // the frontends and apply it at the current cursor location.
1330         case LFUN_FONT_FREE_UPDATE: {
1331                 LyXFont font;
1332                 bool toggle;
1333                 if (bv_funcs::string2font(to_utf8(cmd.argument()), font, toggle)) {
1334                         freefont = font;
1335                         toggleall = toggle;
1336                         toggleAndShow(cur, this, freefont, toggleall);
1337                         cur.message(_("Character set"));
1338                 }
1339                 break;
1340         }
1341
1342         case LFUN_FINISHED_LEFT:
1343                 lyxerr[Debug::DEBUG] << "handle LFUN_FINISHED_LEFT:\n" << cur << endl;
1344                 break;
1345
1346         case LFUN_FINISHED_RIGHT:
1347                 lyxerr[Debug::DEBUG] << "handle LFUN_FINISHED_RIGHT:\n" << cur << endl;
1348                 ++cur.pos();
1349                 break;
1350
1351         case LFUN_FINISHED_UP:
1352                 lyxerr[Debug::DEBUG] << "handle LFUN_FINISHED_UP:\n" << cur << endl;
1353                 cursorUp(cur);
1354                 break;
1355
1356         case LFUN_FINISHED_DOWN:
1357                 lyxerr[Debug::DEBUG] << "handle LFUN_FINISHED_DOWN:\n" << cur << endl;
1358                 cursorDown(cur);
1359                 break;
1360
1361         case LFUN_LAYOUT_PARAGRAPH: {
1362                 string data;
1363                 params2string(cur.paragraph(), data);
1364                 data = "show\n" + data;
1365                 bv->showDialogWithData("paragraph", data);
1366                 break;
1367         }
1368
1369         case LFUN_PARAGRAPH_UPDATE: {
1370                 string data;
1371                 params2string(cur.paragraph(), data);
1372
1373                 // Will the paragraph accept changes from the dialog?
1374                 bool const accept = !cur.inset().forceDefaultParagraphs(cur.idx());
1375
1376                 data = "update " + convert<string>(accept) + '\n' + data;
1377                 bv->updateDialog("paragraph", data);
1378                 break;
1379         }
1380
1381         case LFUN_ACCENT_UMLAUT:
1382         case LFUN_ACCENT_CIRCUMFLEX:
1383         case LFUN_ACCENT_GRAVE:
1384         case LFUN_ACCENT_ACUTE:
1385         case LFUN_ACCENT_TILDE:
1386         case LFUN_ACCENT_CEDILLA:
1387         case LFUN_ACCENT_MACRON:
1388         case LFUN_ACCENT_DOT:
1389         case LFUN_ACCENT_UNDERDOT:
1390         case LFUN_ACCENT_UNDERBAR:
1391         case LFUN_ACCENT_CARON:
1392         case LFUN_ACCENT_SPECIAL_CARON:
1393         case LFUN_ACCENT_BREVE:
1394         case LFUN_ACCENT_TIE:
1395         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
1396         case LFUN_ACCENT_CIRCLE:
1397         case LFUN_ACCENT_OGONEK:
1398                 theLyXFunc().handleKeyFunc(cmd.action);
1399                 if (!cmd.argument().empty())
1400                         // FIXME: Are all these characters encoded in one byte in utf8?
1401                         bv->getIntl().getTransManager()
1402                                 .translateAndInsert(cmd.argument()[0], this, cur);
1403                 break;
1404
1405         case LFUN_FLOAT_LIST: {
1406                 LyXTextClass const & tclass = bv->buffer()->params().getLyXTextClass();
1407                 if (tclass.floats().typeExist(to_utf8(cmd.argument()))) {
1408                         // not quite sure if we want this...
1409                         recordUndo(cur);
1410                         cur.clearSelection();
1411                         breakParagraph(cur);
1412
1413                         if (cur.lastpos() != 0) {
1414                                 cursorLeft(cur);
1415                                 breakParagraph(cur);
1416                         }
1417
1418                         setLayout(cur, tclass.defaultLayoutName());
1419                         setParagraph(cur, Spacing(), LYX_ALIGN_LAYOUT, docstring(), 0);
1420                         insertInset(cur, new InsetFloatList(to_utf8(cmd.argument())));
1421                         cur.posRight();
1422                 } else {
1423                         lyxerr << "Non-existent float type: "
1424                                << to_utf8(cmd.argument()) << endl;
1425                 }
1426                 break;
1427         }
1428
1429         case LFUN_CHANGE_ACCEPT: {
1430                 acceptChange(cur);
1431                 break;
1432         }
1433
1434         case LFUN_CHANGE_REJECT: {
1435                 rejectChange(cur);
1436                 break;
1437         }
1438
1439         case LFUN_THESAURUS_ENTRY: {
1440                 docstring arg = cmd.argument();
1441                 if (arg.empty()) {
1442                         arg = cur.selectionAsString(false);
1443                         // FIXME
1444                         if (arg.size() > 100 || arg.empty()) {
1445                                 // Get word or selection
1446                                 selectWordWhenUnderCursor(cur, WHOLE_WORD);
1447                                 arg = cur.selectionAsString(false);
1448                         }
1449                 }
1450                 bv->showDialogWithData("thesaurus", to_utf8(arg));
1451                 break;
1452         }
1453
1454         case LFUN_PARAGRAPH_PARAMS_APPLY: {
1455                 // Given data, an encoding of the ParagraphParameters
1456                 // generated in the Paragraph dialog, this function sets
1457                 // the current paragraph appropriately.
1458                 istringstream is(to_utf8(cmd.argument()));
1459                 LyXLex lex(0, 0);
1460                 lex.setStream(is);
1461                 ParagraphParameters params;
1462                 params.read(lex);
1463                 setParagraph(cur,
1464                              params.spacing(),
1465                              params.align(),
1466                              params.labelWidthString(),
1467                              params.noindent());
1468                 cur.message(_("Paragraph layout set"));
1469                 break;
1470         }
1471
1472         case LFUN_ESCAPE:
1473                 if (cur.selection()) {
1474                         cur.selection() = false;
1475                 } else {
1476                         cur.undispatched();
1477                         cmd = FuncRequest(LFUN_FINISHED_RIGHT);
1478                 }
1479                 break;
1480
1481         default:
1482                 lyxerr[Debug::ACTION]
1483                         << BOOST_CURRENT_FUNCTION
1484                         << ": Command " << cmd
1485                         << " not DISPATCHED by LyXText" << endl;
1486                 cur.undispatched();
1487                 break;
1488         }
1489
1490         needsUpdate |= (cur.pos() != cur.lastpos()) && cur.selection();
1491
1492         // FIXME: The cursor flag is reset two lines below
1493         // so we need to check here if some of the LFUN did touch that.
1494         // for now only LyXText::erase() and LyXText::backspace() do that.
1495         // The plan is to verify all the LFUNs and then to remove this
1496         // singleParUpdate boolean altogether.
1497         if (cur.result().update() & Update::Force) {
1498                 singleParUpdate = false;
1499                 needsUpdate = true;
1500         }
1501
1502         // FIXME: the following code should go in favor of fine grained
1503         // update flag treatment.
1504         if (singleParUpdate) {
1505                 // Inserting characters does not change par height
1506                 ParagraphMetrics const & pms 
1507                         = cur.bv().parMetrics(cur.bottom().text(), cur.bottom().pit());
1508                 if (pms.dim().height()
1509                     == olddim.height()) {
1510                         // if so, update _only_ this paragraph
1511                         cur.updateFlags(Update::SinglePar |
1512                                 Update::FitCursor |
1513                                 Update::MultiParSel);
1514                         return;
1515                 } else
1516                         needsUpdate = true;
1517         }
1518
1519         if (!needsUpdate
1520             && &oldTopSlice.inset() == &cur.inset()
1521             && oldTopSlice.idx() == cur.idx()
1522             && !sel // sel is a backup of cur.selection() at the biginning of the function.
1523             && !cur.selection())
1524                 // FIXME: it would be better if we could just do this
1525                 //
1526                 //if (cur.result().update() != Update::FitCursor)
1527                 //      cur.noUpdate();
1528                 // 
1529                 // But some LFUNs do not set Update::FitCursor when needed, so we
1530                 // do it for all. This is not very harmfull as FitCursor will provoke
1531                 // a full redraw only if needed but still, a proper review of all LFUN
1532                 // should be done and this needsUpdate boolean can then be removed.
1533                 cur.updateFlags(Update::FitCursor);
1534         else
1535                 cur.updateFlags(Update::Force | Update::FitCursor);
1536 }
1537
1538
1539 bool LyXText::getStatus(LCursor & cur, FuncRequest const & cmd,
1540                         FuncStatus & flag) const
1541 {
1542         BOOST_ASSERT(cur.text() == this);
1543
1544         LyXFont const & font = real_current_font;
1545         bool enable = true;
1546         InsetBase::Code code = InsetBase::NO_CODE;
1547
1548         switch (cmd.action) {
1549
1550         case LFUN_DEPTH_DECREMENT:
1551                 enable = changeDepthAllowed(cur, DEC_DEPTH);
1552                 break;
1553
1554         case LFUN_DEPTH_INCREMENT:
1555                 enable = changeDepthAllowed(cur, INC_DEPTH);
1556                 break;
1557
1558         case LFUN_APPENDIX:
1559                 flag.setOnOff(cur.paragraph().params().startOfAppendix());
1560                 return true;
1561
1562         case LFUN_BIBITEM_INSERT:
1563                 enable = (cur.paragraph().layout()->labeltype == LABEL_BIBLIO);
1564                 break;
1565
1566         case LFUN_DIALOG_SHOW_NEW_INSET:
1567                 if (cmd.argument() == "bibitem")
1568                         code = InsetBase::BIBITEM_CODE;
1569                 else if (cmd.argument() == "bibtex")
1570                         code = InsetBase::BIBTEX_CODE;
1571                 else if (cmd.argument() == "box")
1572                         code = InsetBase::BOX_CODE;
1573                 else if (cmd.argument() == "branch")
1574                         code = InsetBase::BRANCH_CODE;
1575                 else if (cmd.argument() == "citation")
1576                         code = InsetBase::CITE_CODE;
1577                 else if (cmd.argument() == "ert")
1578                         code = InsetBase::ERT_CODE;
1579                 else if (cmd.argument() == "external")
1580                         code = InsetBase::EXTERNAL_CODE;
1581                 else if (cmd.argument() == "float")
1582                         code = InsetBase::FLOAT_CODE;
1583                 else if (cmd.argument() == "graphics")
1584                         code = InsetBase::GRAPHICS_CODE;
1585                 else if (cmd.argument() == "include")
1586                         code = InsetBase::INCLUDE_CODE;
1587                 else if (cmd.argument() == "index")
1588                         code = InsetBase::INDEX_CODE;
1589                 else if (cmd.argument() == "nomenclature")
1590                         code = InsetBase::NOMENCL_CODE;
1591                 else if (cmd.argument() == "label")
1592                         code = InsetBase::LABEL_CODE;
1593                 else if (cmd.argument() == "note")
1594                         code = InsetBase::NOTE_CODE;
1595                 else if (cmd.argument() == "ref")
1596                         code = InsetBase::REF_CODE;
1597                 else if (cmd.argument() == "toc")
1598                         code = InsetBase::TOC_CODE;
1599                 else if (cmd.argument() == "url")
1600                         code = InsetBase::URL_CODE;
1601                 else if (cmd.argument() == "vspace")
1602                         code = InsetBase::VSPACE_CODE;
1603                 else if (cmd.argument() == "wrap")
1604                         code = InsetBase::WRAP_CODE;
1605                 break;
1606
1607         case LFUN_ERT_INSERT:
1608                 code = InsetBase::ERT_CODE;
1609                 break;
1610         case LFUN_FOOTNOTE_INSERT:
1611                 code = InsetBase::FOOT_CODE;
1612                 break;
1613         case LFUN_TABULAR_INSERT:
1614                 code = InsetBase::TABULAR_CODE;
1615                 break;
1616         case LFUN_MARGINALNOTE_INSERT:
1617                 code = InsetBase::MARGIN_CODE;
1618                 break;
1619         case LFUN_FLOAT_INSERT:
1620         case LFUN_FLOAT_WIDE_INSERT:
1621                 code = InsetBase::FLOAT_CODE;
1622                 break;
1623         case LFUN_WRAP_INSERT:
1624                 code = InsetBase::WRAP_CODE;
1625                 break;
1626         case LFUN_FLOAT_LIST:
1627                 code = InsetBase::FLOAT_LIST_CODE;
1628                 break;
1629 #if 0
1630         case LFUN_LIST_INSERT:
1631                 code = InsetBase::LIST_CODE;
1632                 break;
1633         case LFUN_THEOREM_INSERT:
1634                 code = InsetBase::THEOREM_CODE;
1635                 break;
1636 #endif
1637         case LFUN_CAPTION_INSERT:
1638                 code = InsetBase::CAPTION_CODE;
1639                 break;
1640         case LFUN_NOTE_INSERT:
1641                 code = InsetBase::NOTE_CODE;
1642                 break;
1643         case LFUN_CHARSTYLE_INSERT:
1644                 code = InsetBase::CHARSTYLE_CODE;
1645                 if (cur.buffer().params().getLyXTextClass().charstyles().empty())
1646                         enable = false;
1647                 break;
1648         case LFUN_BOX_INSERT:
1649                 code = InsetBase::BOX_CODE;
1650                 break;
1651         case LFUN_BRANCH_INSERT:
1652                 code = InsetBase::BRANCH_CODE;
1653                 if (cur.buffer().getMasterBuffer()->params().branchlist().empty())
1654                         enable = false;
1655                 break;
1656         case LFUN_LABEL_INSERT:
1657                 code = InsetBase::LABEL_CODE;
1658                 break;
1659         case LFUN_OPTIONAL_INSERT:
1660                 code = InsetBase::OPTARG_CODE;
1661                 enable = numberOfOptArgs(cur.paragraph())
1662                         < cur.paragraph().layout()->optionalargs;
1663                 break;
1664         case LFUN_ENVIRONMENT_INSERT:
1665                 code = InsetBase::BOX_CODE;
1666                 break;
1667         case LFUN_INDEX_INSERT:
1668                 code = InsetBase::INDEX_CODE;
1669                 break;
1670         case LFUN_INDEX_PRINT:
1671                 code = InsetBase::INDEX_PRINT_CODE;
1672                 break;
1673         case LFUN_NOMENCL_INSERT:
1674                 code = InsetBase::NOMENCL_CODE;
1675                 break;
1676         case LFUN_NOMENCL_PRINT:
1677                 code = InsetBase::NOMENCL_PRINT_CODE;
1678                 break;
1679         case LFUN_TOC_INSERT:
1680                 code = InsetBase::TOC_CODE;
1681                 break;
1682         case LFUN_HTML_INSERT:
1683         case LFUN_URL_INSERT:
1684                 code = InsetBase::URL_CODE;
1685                 break;
1686         case LFUN_QUOTE_INSERT:
1687                 // always allow this, since we will inset a raw quote
1688                 // if an inset is not allowed.
1689                 break;
1690         case LFUN_HYPHENATION_POINT_INSERT:
1691         case LFUN_LIGATURE_BREAK_INSERT:
1692         case LFUN_HFILL_INSERT:
1693         case LFUN_MENU_SEPARATOR_INSERT:
1694         case LFUN_DOTS_INSERT:
1695         case LFUN_END_OF_SENTENCE_PERIOD_INSERT:
1696                 code = InsetBase::SPECIALCHAR_CODE;
1697                 break;
1698         case LFUN_SPACE_INSERT:
1699                 // slight hack: we know this is allowed in math mode
1700                 if (cur.inTexted())
1701                         code = InsetBase::SPACE_CODE;
1702                 break;
1703
1704         case LFUN_INSET_MODIFY:
1705                 // We need to disable this, because we may get called for a
1706                 // tabular cell via
1707                 // InsetTabular::getStatus() -> InsetText::getStatus()
1708                 // and we don't handle LFUN_INSET_MODIFY.
1709                 enable = false;
1710                 break;
1711
1712         case LFUN_FONT_EMPH:
1713                 flag.setOnOff(font.emph() == LyXFont::ON);
1714                 return true;
1715
1716         case LFUN_FONT_NOUN:
1717                 flag.setOnOff(font.noun() == LyXFont::ON);
1718                 return true;
1719
1720         case LFUN_FONT_BOLD:
1721                 flag.setOnOff(font.series() == LyXFont::BOLD_SERIES);
1722                 return true;
1723
1724         case LFUN_FONT_SANS:
1725                 flag.setOnOff(font.family() == LyXFont::SANS_FAMILY);
1726                 return true;
1727
1728         case LFUN_FONT_ROMAN:
1729                 flag.setOnOff(font.family() == LyXFont::ROMAN_FAMILY);
1730                 return true;
1731
1732         case LFUN_FONT_CODE:
1733                 flag.setOnOff(font.family() == LyXFont::TYPEWRITER_FAMILY);
1734                 return true;
1735
1736         case LFUN_CUT:
1737         case LFUN_COPY:
1738                 enable = cur.selection();
1739                 break;
1740
1741         case LFUN_PASTE:
1742                 if (cmd.argument().empty()) {
1743                         if (theClipboard().isInternal())
1744                                 enable = cap::numberOfSelections() > 0;
1745                         else
1746                                 enable = !theClipboard().empty();
1747                 } else {
1748                         string const arg = to_utf8(cmd.argument());
1749                         if (isStrUnsignedInt(arg)) {
1750                                 unsigned int n = convert<unsigned int>(arg);
1751                                 enable = cap::numberOfSelections() > n;
1752                         } else
1753                                 // unknown argument
1754                                 enable = false;
1755                 }
1756                 break;
1757
1758         case LFUN_CLIPBOARD_PASTE:
1759                 enable = !theClipboard().empty();
1760                 break;
1761
1762         case LFUN_PRIMARY_SELECTION_PASTE:
1763                 enable = cur.selection() || !theSelection().empty();
1764                 break;
1765
1766         case LFUN_PARAGRAPH_MOVE_UP:
1767                 enable = cur.pit() > 0 && !cur.selection();
1768                 break;
1769
1770         case LFUN_PARAGRAPH_MOVE_DOWN:
1771                 enable = cur.pit() < cur.lastpit() && !cur.selection();
1772                 break;
1773
1774         case LFUN_INSET_DISSOLVE:
1775                 enable = !isMainText(*cur.bv().buffer()) && cur.inset().nargs() == 1;
1776                 break;
1777
1778         case LFUN_CHANGE_ACCEPT:
1779         case LFUN_CHANGE_REJECT:
1780                 // TODO: context-sensitive enabling of LFUN_CHANGE_ACCEPT/REJECT
1781                 // In principle, these LFUNs should only be enabled if there
1782                 // is a change at the current position/in the current selection.
1783                 // However, without proper optimizations, this will inevitably
1784                 // result in unacceptable performance - just imagine a user who
1785                 // wants to select the complete content of a long document.
1786                 enable = true;
1787                 break;
1788
1789         case LFUN_WORD_DELETE_FORWARD:
1790         case LFUN_WORD_DELETE_BACKWARD:
1791         case LFUN_LINE_DELETE:
1792         case LFUN_WORD_FORWARD:
1793         case LFUN_WORD_BACKWARD:
1794         case LFUN_CHAR_FORWARD:
1795         case LFUN_CHAR_FORWARD_SELECT:
1796         case LFUN_CHAR_BACKWARD:
1797         case LFUN_CHAR_BACKWARD_SELECT:
1798         case LFUN_UP:
1799         case LFUN_UP_SELECT:
1800         case LFUN_DOWN:
1801         case LFUN_DOWN_SELECT:
1802         case LFUN_PARAGRAPH_UP_SELECT:
1803         case LFUN_PARAGRAPH_DOWN_SELECT:
1804         case LFUN_SCREEN_UP_SELECT:
1805         case LFUN_SCREEN_DOWN_SELECT:
1806         case LFUN_LINE_BEGIN_SELECT:
1807         case LFUN_LINE_END_SELECT:
1808         case LFUN_WORD_FORWARD_SELECT:
1809         case LFUN_WORD_BACKWARD_SELECT:
1810         case LFUN_WORD_SELECT:
1811         case LFUN_PARAGRAPH_UP:
1812         case LFUN_PARAGRAPH_DOWN:
1813         case LFUN_SCREEN_UP:
1814         case LFUN_SCREEN_DOWN:
1815         case LFUN_LINE_BEGIN:
1816         case LFUN_LINE_END:
1817         case LFUN_BREAK_LINE:
1818         case LFUN_CHAR_DELETE_FORWARD:
1819         case LFUN_DELETE_FORWARD_SKIP:
1820         case LFUN_CHAR_DELETE_BACKWARD:
1821         case LFUN_DELETE_BACKWARD_SKIP:
1822         case LFUN_BREAK_PARAGRAPH:
1823         case LFUN_BREAK_PARAGRAPH_KEEP_LAYOUT:
1824         case LFUN_BREAK_PARAGRAPH_SKIP:
1825         case LFUN_PARAGRAPH_SPACING:
1826         case LFUN_INSET_INSERT:
1827         case LFUN_WORD_UPCASE:
1828         case LFUN_WORD_LOWCASE:
1829         case LFUN_WORD_CAPITALIZE:
1830         case LFUN_CHARS_TRANSPOSE:
1831         case LFUN_SERVER_GET_XY:
1832         case LFUN_SERVER_SET_XY:
1833         case LFUN_SERVER_GET_FONT:
1834         case LFUN_SERVER_GET_LAYOUT:
1835         case LFUN_LAYOUT:
1836         case LFUN_DATE_INSERT:
1837         case LFUN_SELF_INSERT:
1838         case LFUN_LINE_INSERT:
1839         case LFUN_PAGEBREAK_INSERT:
1840         case LFUN_CLEARPAGE_INSERT:
1841         case LFUN_CLEARDOUBLEPAGE_INSERT:
1842         case LFUN_MATH_DISPLAY:
1843         case LFUN_MATH_IMPORT_SELECTION:
1844         case LFUN_MATH_MODE:
1845         case LFUN_MATH_MACRO:
1846         case LFUN_MATH_MATRIX:
1847         case LFUN_MATH_DELIM:
1848         case LFUN_MATH_BIGDELIM:
1849         case LFUN_MATH_SUBSCRIPT:
1850         case LFUN_MATH_SUPERSCRIPT:
1851         case LFUN_FONT_DEFAULT:
1852         case LFUN_FONT_UNDERLINE:
1853         case LFUN_FONT_SIZE:
1854         case LFUN_LANGUAGE:
1855         case LFUN_FONT_FREE_APPLY:
1856         case LFUN_FONT_FREE_UPDATE:
1857         case LFUN_LAYOUT_PARAGRAPH:
1858         case LFUN_PARAGRAPH_UPDATE:
1859         case LFUN_ACCENT_UMLAUT:
1860         case LFUN_ACCENT_CIRCUMFLEX:
1861         case LFUN_ACCENT_GRAVE:
1862         case LFUN_ACCENT_ACUTE:
1863         case LFUN_ACCENT_TILDE:
1864         case LFUN_ACCENT_CEDILLA:
1865         case LFUN_ACCENT_MACRON:
1866         case LFUN_ACCENT_DOT:
1867         case LFUN_ACCENT_UNDERDOT:
1868         case LFUN_ACCENT_UNDERBAR:
1869         case LFUN_ACCENT_CARON:
1870         case LFUN_ACCENT_SPECIAL_CARON:
1871         case LFUN_ACCENT_BREVE:
1872         case LFUN_ACCENT_TIE:
1873         case LFUN_ACCENT_HUNGARIAN_UMLAUT:
1874         case LFUN_ACCENT_CIRCLE:
1875         case LFUN_ACCENT_OGONEK:
1876         case LFUN_THESAURUS_ENTRY:
1877         case LFUN_PARAGRAPH_PARAMS_APPLY:
1878         case LFUN_ESCAPE:
1879         case LFUN_BUFFER_END:
1880         case LFUN_BUFFER_BEGIN:
1881         case LFUN_BUFFER_BEGIN_SELECT:
1882         case LFUN_BUFFER_END_SELECT:
1883         case LFUN_UNICODE_INSERT:
1884                 // these are handled in our dispatch()
1885                 enable = true;
1886                 break;
1887
1888         default:
1889                 return false;
1890         }
1891
1892         if (code != InsetBase::NO_CODE
1893             && (cur.empty() || !cur.inset().insetAllowed(code)))
1894                 enable = false;
1895
1896         flag.enabled(enable);
1897         return true;
1898 }
1899
1900
1901 void LyXText::pasteString(LCursor & cur, docstring const & clip,
1902                 bool asParagraphs)
1903 {
1904         cur.clearSelection();
1905         if (!clip.empty()) {
1906                 recordUndo(cur);
1907                 if (asParagraphs)
1908                         insertStringAsParagraphs(cur, clip);
1909                 else
1910                         insertStringAsLines(cur, clip);
1911         }
1912 }
1913
1914 } // namespace lyx