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1 /* This file is part of
2  * ======================================================
3  *
4  *           LyX, The Document Processor
5  *
6  *           Copyright 1998-2001 The LyX Team.
7  *
8  * ======================================================
9  */
10
11 #include <config.h>
12
13 #ifdef __GNUG__
14 #pragma implementation
15 #endif
16
17 #include "insettext.h"
18
19 #include "buffer.h"
20 #include "BufferView.h"
21 #include "CutAndPaste.h"
22 #include "debug.h"
23 #include "funcrequest.h"
24 #include "gettext.h"
25 #include "intl.h"
26 #include "LaTeXFeatures.h"
27 #include "LColor.h"
28 #include "lyxfont.h"
29 #include "lyxcursor.h"
30 #include "lyxfind.h"
31 #include "lyxlex.h"
32 #include "lyxrow.h"
33 #include "lyxrc.h"
34 #include "lyxtext.h"
35 #include "paragraph.h"
36 #include "ParagraphParameters.h"
37 #include "trans_mgr.h"
38 #include "undo_funcs.h"
39 #include "WordLangTuple.h"
40
41 #include "frontends/Alert.h"
42 #include "frontends/Dialogs.h"
43 #include "frontends/font_metrics.h"
44 #include "frontends/LyXView.h"
45 #include "frontends/Painter.h"
46 #include "frontends/screen.h"
47
48 #include "support/textutils.h"
49 #include "support/LAssert.h"
50 #include "support/lstrings.h"
51 #include "support/lyxalgo.h" // lyx::count
52
53 #include <boost/bind.hpp>
54
55 #include <fstream>
56 #include <algorithm>
57 #include <cstdlib>
58 //#include <csignal>
59
60 using std::ostream;
61 using std::ifstream;
62 using std::endl;
63 using std::min;
64 using std::max;
65 using std::make_pair;
66 using std::vector;
67 using std::pair;
68 using std::for_each;
69
70 using lyx::pos_type;
71 using lyx::textclass_type;
72
73 extern unsigned char getCurrentTextClass(Buffer *);
74 extern bool math_insert_greek(BufferView *, char);
75 extern int greek_kb_flag;
76
77
78 // These functions should probably go into bufferview_funcs somehow (Jug)
79
80 void InsetText::saveLyXTextState(LyXText * t) const
81 {
82         // check if my paragraphs are still valid
83         ParagraphList::iterator it = paragraphs.begin();
84         ParagraphList::iterator end = paragraphs.end();
85         for (; it != end; ++it) {
86                 if (&*it == t->cursor.par())
87                         break;
88         }
89
90         if (it != end && t->cursor.pos() <= it->size()) {
91                 sstate.lpar = t->cursor.par();
92                 sstate.pos = t->cursor.pos();
93                 sstate.boundary = t->cursor.boundary();
94                 sstate.selstartpar = t->selection.start.par();
95                 sstate.selstartpos = t->selection.start.pos();
96                 sstate.selstartboundary = t->selection.start.boundary();
97                 sstate.selendpar = t->selection.end.par();
98                 sstate.selendpos = t->selection.end.pos();
99                 sstate.selendboundary = t->selection.end.boundary();
100                 sstate.selection = t->selection.set();
101                 sstate.mark_set = t->selection.mark();
102                 sstate.refresh = t->refresh_row != 0;
103         } else {
104                 sstate.lpar = 0;
105         }
106 }
107
108 void InsetText::restoreLyXTextState(BufferView * bv, LyXText * t) const
109 {
110         if (sstate.lpar) {
111                 t->selection.set(true);
112                 /* at this point just to avoid the Delete-Empty-Paragraph
113                  * Mechanism when setting the cursor */
114                 t->selection.mark(sstate.mark_set);
115                 if (sstate.selection) {
116                         t->setCursor(bv, sstate.selstartpar, sstate.selstartpos,
117                                      true, sstate.selstartboundary);
118                         t->selection.cursor = t->cursor;
119                         t->setCursor(bv, sstate.selendpar, sstate.selendpos,
120                                      true, sstate.selendboundary);
121                         t->setSelection(bv);
122                         t->setCursor(bv, sstate.lpar, sstate.pos);
123                 } else {
124                         t->setCursor(bv, sstate.lpar, sstate.pos, true, sstate.boundary);
125                         t->selection.cursor = t->cursor;
126                         t->selection.set(false);
127                 }
128                 if (sstate.refresh) {
129                 }
130         }
131 }
132
133
134 InsetText::InnerCache::InnerCache(boost::shared_ptr<LyXText> t)
135 {
136         text = t;
137         remove = false;
138 }
139
140
141 InsetText::InsetText(BufferParams const & bp)
142         : UpdatableInset(), lt(0), in_update(false), do_resize(0),
143           do_reinit(false)
144 {
145         paragraphs.set(new Paragraph);
146         paragraphs.begin()->layout(bp.getLyXTextClass().defaultLayout());
147         init();
148 }
149
150
151 InsetText::InsetText(InsetText const & in, bool same_id)
152         : UpdatableInset(in, same_id), lt(0), in_update(false), do_resize(0),
153           do_reinit(false)
154 {
155         init(&in, same_id);
156 }
157
158
159 InsetText & InsetText::operator=(InsetText const & it)
160 {
161         init(&it);
162         return * this;
163 }
164
165
166 void InsetText::init(InsetText const * ins, bool same_id)
167 {
168         if (ins) {
169                 setParagraphData(&*(ins->paragraphs.begin()), same_id);
170                 autoBreakRows = ins->autoBreakRows;
171                 drawFrame_ = ins->drawFrame_;
172                 frame_color = ins->frame_color;
173                 if (same_id)
174                         id_ = ins->id_;
175         } else {
176                 for_each(paragraphs.begin(), paragraphs.end(),
177                          boost::bind(&Paragraph::setInsetOwner, _1, this));
178
179                 the_locking_inset = 0;
180                 drawFrame_ = NEVER;
181                 frame_color = LColor::insetframe;
182                 autoBreakRows = false;
183         }
184         top_y = 0;
185         insetAscent = 0;
186         insetDescent = 0;
187         insetWidth = 0;
188         old_max_width = 0;
189         no_selection = true;
190         need_update = FULL;
191         drawTextXOffset = 0;
192         drawTextYOffset = 0;
193         locked = false;
194         old_par = 0;
195         last_drawn_width = -1;
196         frame_is_visible = false;
197         cached_bview = 0;
198         sstate.lpar = 0;
199         in_insetAllowed = false;
200 }
201
202
203 InsetText::~InsetText()
204 {
205         paragraphs.clear();
206 }
207
208
209 void InsetText::clear()
210 {
211         // This is a gross hack...
212         LyXLayout_ptr old_layout = paragraphs.begin()->layout();
213
214         paragraphs.clear();
215         paragraphs.set(new Paragraph);
216         paragraphs.begin()->setInsetOwner(this);
217         paragraphs.begin()->layout(old_layout);
218
219         reinitLyXText();
220         need_update = INIT;
221 }
222
223
224 Inset * InsetText::clone(Buffer const &, bool same_id) const
225 {
226         return new InsetText(*this, same_id);
227 }
228
229
230 void InsetText::write(Buffer const * buf, ostream & os) const
231 {
232         os << "Text\n";
233         writeParagraphData(buf, os);
234 }
235
236
237 void InsetText::writeParagraphData(Buffer const * buf, ostream & os) const
238 {
239         paragraphs.begin()->writeFile(buf, os, buf->params, 0);
240 }
241
242
243 void InsetText::read(Buffer const * buf, LyXLex & lex)
244 {
245         string token;
246         int pos = 0;
247         Paragraph * return_par = 0;
248         Paragraph::depth_type depth = 0;
249         LyXFont font(LyXFont::ALL_INHERIT);
250
251         clear();
252
253         while (lex.isOK()) {
254                 lex.nextToken();
255                 token = lex.getString();
256                 if (token.empty())
257                         continue;
258                 if (token == "\\end_inset") {
259 #ifndef NO_COMPABILITY
260                         const_cast<Buffer*>(buf)->insertErtContents(par, pos, false);
261 #endif
262                         break;
263                 }
264
265                 Paragraph * tmp = &*(paragraphs.begin());
266
267                 if (const_cast<Buffer*>(buf)->
268                         parseSingleLyXformat2Token(lex, tmp, return_par,
269                                                    token, pos, depth, font)) {
270                         // the_end read this should NEVER happen
271                         lex.printError("\\the_end read in inset! Error in document!");
272                         return;
273                 }
274                 paragraphs.set(tmp);
275         }
276         if (!return_par)
277                 return_par = &*(paragraphs.begin());
278         paragraphs.set(return_par);
279         while (return_par) {
280                 return_par->setInsetOwner(this);
281                 return_par = return_par->next();
282         }
283
284         if (token != "\\end_inset") {
285                 lex.printError("Missing \\end_inset at this point. "
286                                            "Read: `$$Token'");
287         }
288         need_update = FULL;
289 }
290
291
292 int InsetText::ascent(BufferView * bv, LyXFont const &) const
293 {
294         insetAscent = getLyXText(bv)->firstRow()->ascent_of_text() +
295                 TEXT_TO_INSET_OFFSET;
296         return insetAscent;
297 }
298
299
300 int InsetText::descent(BufferView * bv, LyXFont const &) const
301 {
302         LyXText * llt = getLyXText(bv);
303         insetDescent = llt->height - llt->firstRow()->ascent_of_text() +
304                 TEXT_TO_INSET_OFFSET;
305         return insetDescent;
306 }
307
308
309 int InsetText::width(BufferView * bv, LyXFont const &) const
310 {
311         insetWidth = max(textWidth(bv), (int)getLyXText(bv)->width) +
312                 (2 * TEXT_TO_INSET_OFFSET);
313         insetWidth = max(insetWidth, 10);
314         return insetWidth;
315 }
316
317
318 int InsetText::textWidth(BufferView * bv, bool fordraw) const
319 {
320         int w;
321         if (!autoBreakRows) {
322                 w = -1;
323         } else {
324                 w = getMaxWidth(bv, this);
325         }
326         if (fordraw) {
327                 return max(w - (2 * TEXT_TO_INSET_OFFSET),
328                            (int)getLyXText(bv)->width);
329         } else if (w < 0) {
330             return -1;
331         }
332         return w - (2 * TEXT_TO_INSET_OFFSET);
333 }
334
335
336 void InsetText::draw(BufferView * bv, LyXFont const & f,
337                      int baseline, float & x, bool cleared) const
338 {
339         if (nodraw())
340                 return;
341
342         Painter & pain = bv->painter();
343
344         // this is the first thing we have to ask because if the x pos
345         // changed we have to do a complete rebreak of the text as we
346         // may have few space to draw in. Well we should check on this too
347         int old_x = top_x;
348         if (top_x != int(x)) {
349                 top_x = int(x);
350                 topx_set = true;
351                 int nw = getMaxWidth(bv, this);
352                 if (nw > 0 && old_max_width != nw) {
353                         need_update = INIT;
354                         old_max_width = nw;
355                         bv->text->status(bv, LyXText::CHANGED_IN_DRAW);
356                         return;
357                 }
358         }
359
360         // call these methods so that insetWidth, insetAscent and
361         // insetDescent have the right values.
362         width(bv, f);
363         ascent(bv, f);
364         descent(bv, f);
365
366         // repaint the background if needed
367         if (cleared && backgroundColor() != LColor::background) {
368                 clearInset(bv, baseline, cleared);
369         }
370
371         // no draw is necessary !!!
372         if ((drawFrame_ == LOCKED) && !locked && paragraphs.begin()->empty()) {
373                 top_baseline = baseline;
374                 x += width(bv, f);
375                 if (need_update & CLEAR_FRAME)
376                         clearFrame(pain, cleared);
377                 need_update = NONE;
378                 return;
379         }
380
381         if (!owner())
382                 x += static_cast<float>(scroll());
383
384         // if top_x differs we did it already
385         if (!cleared && (old_x == int(x))
386             && ((need_update&(INIT|FULL)) || (top_baseline != baseline)
387                 ||(last_drawn_width != insetWidth)))
388         {
389                 // Condition necessary to eliminate bug 59 attachment 37
390                 if (baseline > 0)
391                         clearInset(bv, baseline, cleared);
392         }
393
394         if (cleared)
395                 frame_is_visible = false;
396
397         if (!cleared && (need_update == NONE)) {
398                 if (locked)
399                         drawFrame(pain, cleared);
400                 return;
401         }
402
403         top_baseline = baseline;
404         top_y = baseline - insetAscent;
405
406         if (last_drawn_width != insetWidth) {
407                 if (!cleared)
408                         clearInset(bv, baseline, cleared);
409                 need_update |= FULL;
410                 last_drawn_width = insetWidth;
411         }
412
413         if (the_locking_inset && (cpar(bv) == inset_par)
414                 && (cpos(bv) == inset_pos)) {
415                 inset_x = cix(bv) - top_x + drawTextXOffset;
416                 inset_y = ciy(bv) + drawTextYOffset;
417         }
418         if (!cleared && (need_update == CURSOR)
419             && !getLyXText(bv)->selection.set()) {
420                 drawFrame(pain, cleared);
421                 x += insetWidth;
422                 need_update = NONE;
423                 return;
424         }
425         bool clear = false;
426         if (!lt) {
427                 lt = getLyXText(bv);
428                 clear = true;
429         }
430         x += TEXT_TO_INSET_OFFSET;
431
432         Row * row = lt->firstRow();
433         int y_offset = baseline - row->ascent_of_text();
434         int ph = pain.paperHeight();
435         int first = 0;
436         int y = y_offset;
437         while ((row != 0) && ((y+row->height()) <= 0)) {
438                 y += row->height();
439                 first += row->height();
440                 row = row->next();
441         }
442         if (y_offset < 0) {
443                 lt->first_y = -y_offset;
444                 first = y;
445                 y_offset = 0;
446         } else {
447                 lt->first_y = first;
448                 first = 0;
449         }
450         if (cleared || (need_update&(INIT|FULL))) {
451                 int yf = y_offset + first;
452                 y = 0;
453                 while ((row != 0) && (yf < ph)) {
454                         lt->getVisibleRow(bv, y + y_offset + first, int(x),
455                                           row, y + lt->first_y, cleared);
456                         if (bv->text->status() == LyXText::CHANGED_IN_DRAW) {
457                                 lt->need_break_row = row;
458                                 lt->fullRebreak(bv);
459                                 lt->setCursor(bv, lt->cursor.par(),
460                                               lt->cursor.pos());
461                                 if (lt->selection.set()) {
462                                         lt->setCursor(bv, lt->selection.start,
463                                                       lt->selection.start.par(),
464                                                       lt->selection.start.pos());
465                                         lt->setCursor(bv, lt->selection.end,
466                                                       lt->selection.end.par(),
467                                                       lt->selection.end.pos());
468                                 }
469                                 break;
470                         }
471                         y += row->height();
472                         yf += row->height();
473                         row = row->next();
474                 }
475         } else if (!locked) {
476                 if (need_update & CURSOR) {
477                         bv->screen().toggleSelection(lt, bv, true, y_offset,int(x));
478                         lt->clearSelection();
479                         lt->selection.cursor = lt->cursor;
480                 }
481                 bv->screen().update(lt, bv, y_offset, int(x));
482         } else {
483                 locked = false;
484                 if (need_update & SELECTION) {
485                         bv->screen().toggleToggle(lt, bv, y_offset, int(x));
486                 } else if (need_update & CURSOR) {
487                         bv->screen().toggleSelection(lt, bv, true, y_offset,int(x));
488                         lt->clearSelection();
489                         lt->selection.cursor = lt->cursor;
490                 }
491                 bv->screen().update(lt, bv, y_offset, int(x));
492                 locked = true;
493         }
494
495         lt->refresh_y = 0;
496         lt->status(bv, LyXText::UNCHANGED);
497         if ((drawFrame_ == ALWAYS) ||
498                 ((cleared || (need_update != CURSOR_PAR)) &&
499                  (drawFrame_ == LOCKED) && locked))
500         {
501                 drawFrame(pain, cleared);
502         } else if (need_update & CLEAR_FRAME) {
503                 clearFrame(pain, cleared);
504         }
505
506         x += insetWidth - TEXT_TO_INSET_OFFSET;
507
508         if (bv->text->status() == LyXText::CHANGED_IN_DRAW) {
509                 need_update |= FULL;
510         } else if (need_update != INIT) {
511                 need_update = NONE;
512         }
513         if (clear)
514                 lt = 0;
515 }
516
517
518 void InsetText::drawFrame(Painter & pain, bool cleared) const
519 {
520         static int const ttoD2 = TEXT_TO_INSET_OFFSET / 2;
521         if (!frame_is_visible || cleared) {
522                 frame_x = top_x + ttoD2;
523                 frame_y = top_baseline - insetAscent + ttoD2;
524                 frame_w = insetWidth - TEXT_TO_INSET_OFFSET;
525                 frame_h = insetAscent + insetDescent - TEXT_TO_INSET_OFFSET;
526                 pain.rectangle(frame_x, frame_y, frame_w, frame_h,
527                                frame_color);
528                 frame_is_visible = true;
529         }
530 }
531
532
533 void InsetText::clearFrame(Painter & pain, bool cleared) const
534 {
535         if (frame_is_visible) {
536                 if (!cleared) {
537                         pain.rectangle(frame_x, frame_y, frame_w, frame_h,
538                                        backgroundColor());
539                 }
540                 frame_is_visible = false;
541         }
542 }
543
544
545 void InsetText::update(BufferView * bv, LyXFont const & font, bool reinit)
546 {
547         if (in_update) {
548                 if (reinit && owner()) {
549                         reinitLyXText();
550                         owner()->update(bv, font, true);
551                 }
552                 return;
553         }
554         in_update = true;
555         if (reinit || need_update == INIT) {
556                 need_update = FULL;
557                 // we should put this call where we set need_update to INIT!
558                 reinitLyXText();
559                 if (owner())
560                         owner()->update(bv, font, true);
561                 in_update = false;
562                 return;
563         }
564
565         if (!autoBreakRows && paragraphs.begin()->next())
566                 collapseParagraphs(bv);
567
568         if (the_locking_inset) {
569                 inset_x = cix(bv) - top_x + drawTextXOffset;
570                 inset_y = ciy(bv) + drawTextYOffset;
571                 the_locking_inset->update(bv, font, reinit);
572         }
573
574         bool clear = false;
575         if (!lt) {
576                 lt = getLyXText(bv);
577                 clear = true;
578         }
579         if ((need_update & CURSOR_PAR) && (lt->status() == LyXText::UNCHANGED) &&
580                 the_locking_inset)
581         {
582                 lt->updateInset(bv, the_locking_inset);
583         }
584         if (lt->status() == LyXText::NEED_MORE_REFRESH)
585                 need_update |= FULL;
586         if (clear)
587                 lt = 0;
588         in_update = false;
589 }
590
591
592 void InsetText::setUpdateStatus(BufferView * bv, int what) const
593 {
594         // this does nothing dangerous so use only a localized buffer
595         LyXText * llt = getLyXText(bv);
596
597         need_update |= what;
598         // we have to redraw us full if our LyXText NEEDS_MORE_REFRES or
599         // if we don't break row so that we only have one row to update!
600         if ((llt->status() == LyXText::NEED_MORE_REFRESH) ||
601             (!autoBreakRows &&
602              (llt->status() == LyXText::NEED_VERY_LITTLE_REFRESH)))
603         {
604                 need_update |= FULL;
605         } else if (llt->status() == LyXText::NEED_VERY_LITTLE_REFRESH) {
606                 need_update |= CURSOR_PAR;
607         }
608
609         // this to not draw a selection when we redraw all of it!
610         if (need_update & CURSOR && !(need_update & SELECTION)) {
611                 if (llt->selection.set())
612                         need_update = FULL;
613                 llt->clearSelection();
614         }
615 }
616
617
618 void InsetText::updateLocal(BufferView * bv, int what, bool mark_dirty) const
619 {
620         if (!autoBreakRows && paragraphs.begin()->next())
621                 collapseParagraphs(bv);
622         bool clear = false;
623         if (!lt) {
624                 lt = getLyXText(bv);
625                 clear = true;
626         }
627         lt->fullRebreak(bv);
628         setUpdateStatus(bv, what);
629         bool flag = mark_dirty ||
630                 (((need_update != CURSOR) && (need_update != NONE)) ||
631                  (lt->status() != LyXText::UNCHANGED) || lt->selection.set());
632         if (!lt->selection.set())
633                 lt->selection.cursor = lt->cursor;
634         if (clear)
635                 lt = 0;
636 #if 0
637         // IMO this is not anymore needed as we do this in fitInsetCursor!
638         // and we always get "true" as returnvalue of this function in the
639         // case of a locking inset (Jug 20020412)
640         if (locked && (need_update & CURSOR) && bv->fitCursor())
641                 need_update |= FULL;
642 #else
643         bv->fitCursor();
644 #endif
645         if (flag)
646                 bv->updateInset(const_cast<InsetText *>(this), mark_dirty);
647
648         if (need_update == CURSOR)
649                 need_update = NONE;
650         bv->owner()->view_state_changed();
651         bv->owner()->updateMenubar();
652         bv->owner()->updateToolbar();
653         if (old_par != cpar(bv)) {
654                 bv->owner()->setLayout(cpar(bv)->layout()->name());
655                 old_par = cpar(bv);
656         }
657 }
658
659
660 string const InsetText::editMessage() const
661 {
662         return _("Opened Text Inset");
663 }
664
665
666 void InsetText::edit(BufferView * bv, int x, int y, mouse_button::state button)
667 {
668         UpdatableInset::edit(bv, x, y, button);
669
670         if (!bv->lockInset(this)) {
671                 lyxerr[Debug::INSETS] << "Cannot lock inset" << endl;
672                 return;
673         }
674         locked = true;
675         the_locking_inset = 0;
676         inset_pos = inset_x = inset_y = 0;
677         inset_boundary = false;
678         inset_par = 0;
679         old_par = 0;
680         int tmp_y = (y < 0) ? 0 : y;
681         bool clear = false;
682         if (!lt) {
683                 lt = getLyXText(bv);
684                 clear = true;
685         }
686         // we put here -1 and not button as now the button in the
687         // edit call should not be needed we will fix this in 1.3.x
688         // cycle hopefully (Jug 20020509)
689         // FIXME: GUII I've changed this to none: probably WRONG
690         if (!checkAndActivateInset(bv, x, tmp_y, mouse_button::none)) {
691                 lt->setCursorFromCoordinates(bv, x - drawTextXOffset,
692                                             y + insetAscent);
693                 lt->cursor.x_fix(lt->cursor.x());
694         }
695         lt->clearSelection();
696         finishUndo();
697         // If the inset is empty set the language of the current font to the
698         // language to the surronding text (if different).
699         if (paragraphs.begin()->empty() && !paragraphs.begin()->next() &&
700                 bv->getParentLanguage(this) != lt->current_font.language())
701         {
702                 LyXFont font(LyXFont::ALL_IGNORE);
703                 font.setLanguage(bv->getParentLanguage(this));
704                 setFont(bv, font, false);
705         }
706         if (clear)
707                 lt = 0;
708
709         int code = CURSOR;
710         if (drawFrame_ == LOCKED)
711                 code = CURSOR|DRAW_FRAME;
712         updateLocal(bv, code, false);
713         showInsetCursor(bv);
714
715         // Tell the paragraph dialog that we've entered an insettext.
716         bv->owner()->getDialogs().updateParagraph();
717 }
718
719
720 void InsetText::edit(BufferView * bv, bool front)
721 {
722         UpdatableInset::edit(bv, front);
723
724         if (!bv->lockInset(this)) {
725                 lyxerr[Debug::INSETS] << "Cannot lock inset" << endl;
726                 return;
727         }
728         locked = true;
729         the_locking_inset = 0;
730         inset_pos = inset_x = inset_y = 0;
731         inset_boundary = false;
732         inset_par = 0;
733         old_par = 0;
734         bool clear = false;
735         if (!lt) {
736                 lt = getLyXText(bv);
737                 clear = true;
738         }
739         if (front)
740                 lt->setCursor(bv, &*(paragraphs.begin()), 0);
741         else {
742                 ParagraphList::iterator it = paragraphs.begin();
743                 ParagraphList::iterator end = paragraphs.end();
744                 while (boost::next(it) != end)
745                         ++it;
746 //              int const pos = (p->size() ? p->size()-1 : p->size());
747                 lt->setCursor(bv, &*it, it->size());
748         }
749         lt->clearSelection();
750         finishUndo();
751         // If the inset is empty set the language of the current font to the
752         // language to the surronding text (if different).
753         if (paragraphs.begin()->empty() && !paragraphs.begin()->next() &&
754                 bv->getParentLanguage(this) != lt->current_font.language()) {
755                 LyXFont font(LyXFont::ALL_IGNORE);
756                 font.setLanguage(bv->getParentLanguage(this));
757                 setFont(bv, font, false);
758         }
759         if (clear)
760                 lt = 0;
761         int code = CURSOR;
762         if (drawFrame_ == LOCKED)
763                 code = CURSOR|DRAW_FRAME;
764         updateLocal(bv, code, false);
765         showInsetCursor(bv);
766 }
767
768
769 void InsetText::insetUnlock(BufferView * bv)
770 {
771         if (the_locking_inset) {
772                 the_locking_inset->insetUnlock(bv);
773                 the_locking_inset = 0;
774                 updateLocal(bv, CURSOR_PAR, false);
775         }
776         hideInsetCursor(bv);
777         no_selection = true;
778         locked = false;
779         int code = NONE;
780 #if 0
781         if (drawFrame_ == LOCKED)
782                 code = CURSOR|CLEAR_FRAME;
783         else
784                 code = CURSOR;
785 #else
786         if (drawFrame_ == LOCKED)
787                 code = CLEAR_FRAME;
788 #endif
789         bool clear = false;
790         if (!lt) {
791                 lt = getLyXText(bv);
792                 clear = true;
793         }
794         if (lt->selection.set()) {
795                 lt->clearSelection();
796                 code = FULL;
797         } else if (owner()) {
798                 bv->owner()->setLayout(owner()->getLyXText(bv)
799                                        ->cursor.par()->layout()->name());
800         } else
801                 bv->owner()->setLayout(bv->text->cursor.par()->layout()->name());
802         // hack for deleteEmptyParMech
803         if (!paragraphs.begin()->empty()) {
804                 lt->setCursor(bv, &*(paragraphs.begin()), 0);
805         } else if (paragraphs.begin()->next()) {
806                 lt->setCursor(bv, paragraphs.begin()->next(), 0);
807         }
808         if (clear)
809                 lt = 0;
810 #if 0
811         updateLocal(bv, code, false);
812 #else
813         if (code != NONE)
814                 setUpdateStatus(bv, code);
815 #endif
816 }
817
818
819 void InsetText::lockInset(BufferView * bv)
820 {
821         locked = true;
822         the_locking_inset = 0;
823         inset_pos = inset_x = inset_y = 0;
824         inset_boundary = false;
825         inset_par = 0;
826         old_par = 0;
827         bool clear = false;
828         if (!lt) {
829                 lt = getLyXText(bv);
830                 clear = true;
831         }
832         lt->setCursor(bv, &*(paragraphs.begin()), 0);
833         lt->clearSelection();
834         finishUndo();
835         // If the inset is empty set the language of the current font to the
836         // language to the surronding text (if different).
837         if (paragraphs.begin()->empty() && !paragraphs.begin()->next() &&
838                 bv->getParentLanguage(this) != lt->current_font.language()) {
839                 LyXFont font(LyXFont::ALL_IGNORE);
840                 font.setLanguage(bv->getParentLanguage(this));
841                 setFont(bv, font, false);
842         }
843         if (clear)
844                 lt = 0;
845         int code = CURSOR;
846         if (drawFrame_ == LOCKED)
847                 code = CURSOR|DRAW_FRAME;
848         setUpdateStatus(bv, code);
849 }
850
851
852 void InsetText::lockInset(BufferView * bv, UpdatableInset * inset)
853 {
854         the_locking_inset = inset;
855         inset_x = cix(bv) - top_x + drawTextXOffset;
856         inset_y = ciy(bv) + drawTextYOffset;
857         inset_pos = cpos(bv);
858         inset_par = cpar(bv);
859         inset_boundary = cboundary(bv);
860         updateLocal(bv, CURSOR, false);
861 }
862
863
864 bool InsetText::lockInsetInInset(BufferView * bv, UpdatableInset * inset)
865 {
866         lyxerr[Debug::INSETS] << "InsetText::LockInsetInInset("
867                               << inset << "): ";
868         if (!inset)
869                 return false;
870         if (!the_locking_inset) {
871                 Paragraph * p = &*(paragraphs.begin());
872                 int const id = inset->id();
873                 while(p) {
874                         InsetList::iterator it =
875                                 p->insetlist.begin();
876                         InsetList::iterator const end =
877                                 p->insetlist.end();
878                         for (; it != end; ++it) {
879                                 if (it.getInset() == inset) {
880                                         getLyXText(bv)->setCursorIntern(bv, p, it.getPos());
881                                         lockInset(bv, inset);
882                                         return true;
883                                 }
884                                 if (it.getInset()->getInsetFromID(id)) {
885                                         getLyXText(bv)->setCursorIntern(bv, p, it.getPos());
886                                         it.getInset()->edit(bv);
887                                         return the_locking_inset->lockInsetInInset(bv, inset);
888                                 }
889                         }
890                         p = p->next();
891                 }
892                 return false;
893         }
894         if (inset == cpar(bv)->getInset(cpos(bv))) {
895                 lyxerr[Debug::INSETS] << "OK" << endl;
896                 lockInset(bv, inset);
897                 return true;
898         } else if (the_locking_inset && (the_locking_inset == inset)) {
899                 if (cpar(bv) == inset_par && cpos(bv) == inset_pos) {
900                         lyxerr[Debug::INSETS] << "OK" << endl;
901                         inset_x = cix(bv) - top_x + drawTextXOffset;
902                         inset_y = ciy(bv) + drawTextYOffset;
903                 } else {
904                         lyxerr[Debug::INSETS] << "cursor.pos != inset_pos" << endl;
905                 }
906         } else if (the_locking_inset) {
907                 lyxerr[Debug::INSETS] << "MAYBE" << endl;
908                 return the_locking_inset->lockInsetInInset(bv, inset);
909         }
910         lyxerr[Debug::INSETS] << "NOT OK" << endl;
911         return false;
912 }
913
914
915 bool InsetText::unlockInsetInInset(BufferView * bv, UpdatableInset * inset,
916                                    bool lr)
917 {
918         if (!the_locking_inset)
919                 return false;
920         if (the_locking_inset == inset) {
921                 the_locking_inset->insetUnlock(bv);
922                 getLyXText(bv)->updateInset(bv, inset);
923                 the_locking_inset = 0;
924                 if (lr)
925                         moveRightIntern(bv, true, false);
926                 old_par = 0; // force layout setting
927                 if (scroll())
928                         scroll(bv, 0.0F);
929                 else
930                         updateLocal(bv, CURSOR, false);
931                 return true;
932         }
933         return the_locking_inset->unlockInsetInInset(bv, inset, lr);
934 }
935
936
937 bool InsetText::updateInsetInInset(BufferView * bv, Inset * inset)
938 {
939         if (!autoBreakRows && paragraphs.begin()->next())
940                 collapseParagraphs(bv);
941         if (inset == this)
942                 return true;
943         bool clear = false;
944         if (!lt) {
945                 lt = getLyXText(bv);
946                 clear = true;
947         }
948         if (inset->owner() != this) {
949                 int ustat = CURSOR_PAR;
950                 bool found = false;
951                 UpdatableInset * tl_inset = the_locking_inset;
952                 if (tl_inset)
953                         found = tl_inset->updateInsetInInset(bv, inset);
954                 if (!found) {
955                         tl_inset = static_cast<UpdatableInset *>(inset);
956                         while(tl_inset->owner() && tl_inset->owner() != this)
957                                 tl_inset = static_cast<UpdatableInset *>(tl_inset->owner());
958                         if (!tl_inset->owner())
959                                 return false;
960                         found = tl_inset->updateInsetInInset(bv, inset);
961                         ustat = FULL;
962                 }
963                 if (found)
964                         lt->updateInset(bv, tl_inset);
965                 if (clear)
966                         lt = 0;
967                 if (found)
968                         setUpdateStatus(bv, ustat);
969                 return found;
970         }
971         bool found = lt->updateInset(bv, inset);
972         if (clear)
973                 lt = 0;
974         if (found) {
975                 setUpdateStatus(bv, CURSOR_PAR);
976                 if (the_locking_inset &&
977                     cpar(bv) == inset_par && cpos(bv) == inset_pos)
978                 {
979                         inset_x = cix(bv) - top_x + drawTextXOffset;
980                         inset_y = ciy(bv) + drawTextYOffset;
981                 }
982         }
983         return found;
984 }
985
986
987 void InsetText::insetButtonPress(BufferView * bv,
988         int x, int y, mouse_button::state button)
989 {
990         no_selection = true;
991
992         // use this to check mouse motion for selection!
993         mouse_x = x;
994         mouse_y = y;
995
996         if (!locked)
997                 lockInset(bv);
998
999         int tmp_x = x - drawTextXOffset;
1000         int tmp_y = y + insetAscent - getLyXText(bv)->first_y;
1001         Inset * inset = bv->checkInsetHit(getLyXText(bv), tmp_x, tmp_y);
1002
1003         hideInsetCursor(bv);
1004         if (the_locking_inset) {
1005                 if (the_locking_inset == inset) {
1006                         the_locking_inset->insetButtonPress(bv,
1007                                                             x - inset_x,
1008                                                             y - inset_y,
1009                                                             button);
1010                         return;
1011                 }
1012 #if 0
1013                 else if (inset) {
1014                         // otherwise unlock the_locking_inset and lock the new inset
1015                         the_locking_inset->insetUnlock(bv);
1016                         inset_x = cix(bv) - top_x + drawTextXOffset;
1017                         inset_y = ciy(bv) + drawTextYOffset;
1018                         the_locking_inset = 0;
1019                         inset->insetButtonPress(bv, x - inset_x,
1020                                                 y - inset_y, button);
1021 //                      inset->edit(bv, x - inset_x, y - inset_y, button);
1022                         if (the_locking_inset)
1023                                 updateLocal(bv, CURSOR, false);
1024                         return;
1025                 }
1026 #endif
1027                 // otherwise only unlock the_locking_inset
1028                 the_locking_inset->insetUnlock(bv);
1029                 the_locking_inset = 0;
1030         }
1031         if (!inset)
1032                 no_selection = false;
1033
1034         if (bv->theLockingInset()) {
1035                 if (isHighlyEditableInset(inset)) {
1036                         // We just have to lock the inset before calling a
1037                         // PressEvent on it!
1038                         UpdatableInset * uinset = static_cast<UpdatableInset*>(inset);
1039                         if (!bv->lockInset(uinset)) {
1040                                 lyxerr[Debug::INSETS] << "Cannot lock inset" << endl;
1041                         }
1042                         inset->insetButtonPress(bv, x - inset_x, y - inset_y, button);
1043                         if (the_locking_inset)
1044                                 updateLocal(bv, CURSOR, false);
1045                         return;
1046                 }
1047         }
1048         if (!inset) { // && (button == mouse_button::button2)) {
1049                 bool paste_internally = false;
1050                 if ((button == mouse_button::button2) && getLyXText(bv)->selection.set()) {
1051                         localDispatch(FuncRequest(bv, LFUN_COPY));
1052                         paste_internally = true;
1053                 }
1054                 bool clear = false;
1055                 if (!lt) {
1056                         lt = getLyXText(bv);
1057                         clear = true;
1058                 }
1059                 int old_first_y = lt->first_y;
1060
1061                 lt->setCursorFromCoordinates(bv, x - drawTextXOffset,
1062                                              y + insetAscent);
1063                 // set the selection cursor!
1064                 lt->selection.cursor = lt->cursor;
1065                 lt->cursor.x_fix(lt->cursor.x());
1066
1067                 if (lt->selection.set()) {
1068                         lt->clearSelection();
1069                         if (clear)
1070                                 lt = 0;
1071                         updateLocal(bv, FULL, false);
1072                 } else {
1073                         lt->clearSelection();
1074                         if (clear)
1075                                 lt = 0;
1076                         updateLocal(bv, CURSOR, false);
1077                 }
1078
1079                 bv->owner()->setLayout(cpar(bv)->layout()->name());
1080
1081                 // we moved the view we cannot do mouse selection in this case!
1082                 if (getLyXText(bv)->first_y != old_first_y)
1083                         no_selection = true;
1084                 old_par = cpar(bv);
1085                 // Insert primary selection with middle mouse
1086                 // if there is a local selection in the current buffer,
1087                 // insert this
1088                 if (button == mouse_button::button2) {
1089                         if (paste_internally)
1090                                 localDispatch(FuncRequest(bv, LFUN_PASTE));
1091                         else
1092                                 localDispatch(FuncRequest(bv, LFUN_PASTESELECTION, "paragraph"));
1093                 }
1094         } else {
1095                 getLyXText(bv)->clearSelection();
1096         }
1097         showInsetCursor(bv);
1098 }
1099
1100
1101 bool InsetText::insetButtonRelease(BufferView * bv,
1102         int x, int y, mouse_button::state button)
1103 {
1104         no_selection = true;
1105         if (the_locking_inset) {
1106                 return the_locking_inset->insetButtonRelease(bv,
1107                                                              x - inset_x, y - inset_y,
1108                                                              button);
1109         }
1110         int tmp_x = x - drawTextXOffset;
1111         int tmp_y = y + insetAscent - getLyXText(bv)->first_y;
1112         Inset * inset = bv->checkInsetHit(getLyXText(bv), tmp_x, tmp_y);
1113         bool ret = false;
1114         if (inset) {
1115                 if (isHighlyEditableInset(inset)) {
1116                         ret = inset->insetButtonRelease(bv, x - inset_x,
1117                                                         y - inset_y, button);
1118                 } else {
1119                         inset_x = cix(bv) - top_x + drawTextXOffset;
1120                         inset_y = ciy(bv) + drawTextYOffset;
1121                         ret = inset->insetButtonRelease(bv, x - inset_x,
1122                                                         y - inset_y, button);
1123                         inset->edit(bv, x - inset_x,
1124                                     y - inset_y, button);
1125                 }
1126                 updateLocal(bv, CURSOR_PAR, false);
1127         }
1128         return ret;
1129 }
1130
1131
1132 void InsetText::insetMotionNotify(BufferView * bv, int x, int y, mouse_button::state state)
1133 {
1134         if (the_locking_inset) {
1135                 the_locking_inset->insetMotionNotify(bv, x - inset_x,
1136                                                      y - inset_y,state);
1137                 return;
1138         }
1139
1140         if (no_selection || ((mouse_x == x) && (mouse_y == y)))
1141                 return;
1142
1143         bool clear = false;
1144         if (!lt) {
1145                 lt = getLyXText(bv);
1146                 clear = true;
1147         }
1148         hideInsetCursor(bv);
1149         LyXCursor cur = lt->cursor;
1150         lt->setCursorFromCoordinates(bv, x - drawTextXOffset, y + insetAscent);
1151         lt->cursor.x_fix(lt->cursor.x());
1152         if (cur == lt->cursor) {
1153                 if (clear)
1154                         lt = 0;
1155                 return;
1156         }
1157         lt->setSelection(bv);
1158         bool flag = (lt->toggle_cursor.par() != lt->toggle_end_cursor.par() ||
1159                                  lt->toggle_cursor.pos() != lt->toggle_end_cursor.pos());
1160         if (clear)
1161                 lt = 0;
1162         if (flag) {
1163                 updateLocal(bv, SELECTION, false);
1164         }
1165         showInsetCursor(bv);
1166 }
1167
1168
1169 UpdatableInset::RESULT
1170 InsetText::localDispatch(FuncRequest const & ev)
1171 {
1172         BufferView * bv = ev.view();
1173         bool was_empty = (paragraphs.begin()->empty() && !paragraphs.begin()->next());
1174         no_selection = false;
1175         RESULT result= UpdatableInset::localDispatch(ev);
1176         if (result != UNDISPATCHED)
1177                 return DISPATCHED;
1178
1179         result = DISPATCHED;
1180         if (ev.action < 0 && ev.argument.empty())
1181                 return FINISHED;
1182
1183         if (the_locking_inset) {
1184                 result = the_locking_inset->localDispatch(ev);
1185                 if (result == DISPATCHED_NOUPDATE)
1186                         return result;
1187                 else if (result == DISPATCHED) {
1188                         updateLocal(bv, CURSOR_PAR, false);
1189                         return result;
1190                 } else if (result >= FINISHED) {
1191                         switch (result) {
1192                         case FINISHED_RIGHT:
1193                                 moveRightIntern(bv, false, false);
1194                                 result = DISPATCHED;
1195                                 break;
1196                         case FINISHED_UP:
1197                                 if ((result = moveUp(bv)) >= FINISHED) {
1198                                         updateLocal(bv, CURSOR, false);
1199                                         bv->unlockInset(this);
1200                                 }
1201                                 break;
1202                         case FINISHED_DOWN:
1203                         {
1204                                 LyXText *lt = getLyXText(bv);
1205                                 if (lt->cursor.irow()->next()) {
1206                                         lt->setCursorFromCoordinates(
1207                                                 bv, lt->cursor.ix() + inset_x,
1208                                                 lt->cursor.iy() -
1209                                                 lt->cursor.irow()->baseline() +
1210                                                 lt->cursor.irow()->height() + 1);
1211                                         lt->cursor.x_fix(lt->cursor.x());
1212                                         updateLocal(bv, CURSOR, false);
1213                                 } else {
1214                                         bv->unlockInset(this);
1215                                 }
1216                         }
1217                                 break;
1218                         default:
1219                                 result = DISPATCHED;
1220                                 break;
1221                         }
1222                         the_locking_inset = 0;
1223                         updateLocal(bv, CURSOR, false);
1224                         return result;
1225                 }
1226         }
1227         hideInsetCursor(bv);
1228         bool clear = false;
1229         if (!lt) {
1230                 lt = getLyXText(bv);
1231                 clear = true;
1232         }
1233         int updwhat = 0;
1234         int updflag = false;
1235         switch (ev.action) {
1236         // Normal chars
1237         case LFUN_SELFINSERT:
1238                 if (bv->buffer()->isReadonly()) {
1239 //          setErrorMessage(N_("Document is read only"));
1240                         break;
1241                 }
1242                 if (!ev.argument.empty()) {
1243                         /* Automatically delete the currently selected
1244                          * text and replace it with what is being
1245                          * typed in now. Depends on lyxrc settings
1246                          * "auto_region_delete", which defaults to
1247                          * true (on). */
1248
1249                         setUndo(bv, Undo::INSERT,
1250                                 lt->cursor.par(), lt->cursor.par()->next());
1251                         bv->switchKeyMap();
1252                         if (lyxrc.auto_region_delete) {
1253                                 if (lt->selection.set()) {
1254                                         lt->cutSelection(bv, false, false);
1255                                 }
1256                         }
1257                         lt->clearSelection();
1258                         for (string::size_type i = 0; i < ev.argument.length(); ++i) {
1259                                 bv->owner()->getIntl().getTransManager().
1260                                         TranslateAndInsert(ev.argument[i], lt);
1261                         }
1262                 }
1263                 lt->selection.cursor = lt->cursor;
1264                 updwhat = CURSOR | CURSOR_PAR;
1265                 updflag = true;
1266                 result = DISPATCHED_NOUPDATE;
1267                 break;
1268                 // --- Cursor Movements -----------------------------------
1269         case LFUN_RIGHTSEL:
1270                 finishUndo();
1271                 moveRight(bv, false, true);
1272                 lt->setSelection(bv);
1273                 updwhat = SELECTION;
1274                 break;
1275         case LFUN_RIGHT:
1276                 result = moveRight(bv);
1277                 finishUndo();
1278                 updwhat = CURSOR;
1279                 break;
1280         case LFUN_LEFTSEL:
1281                 finishUndo();
1282                 moveLeft(bv, false, true);
1283                 lt->setSelection(bv);
1284                 updwhat = SELECTION;
1285                 break;
1286         case LFUN_LEFT:
1287                 finishUndo();
1288                 result = moveLeft(bv);
1289                 updwhat = CURSOR;
1290                 break;
1291         case LFUN_DOWNSEL:
1292                 finishUndo();
1293                 moveDown(bv);
1294                 lt->setSelection(bv);
1295                 updwhat = SELECTION;
1296                 break;
1297         case LFUN_DOWN:
1298                 finishUndo();
1299                 result = moveDown(bv);
1300                 updwhat = CURSOR;
1301                 break;
1302         case LFUN_UPSEL:
1303                 finishUndo();
1304                 moveUp(bv);
1305                 lt->setSelection(bv);
1306                 updwhat = SELECTION;
1307                 break;
1308         case LFUN_UP:
1309                 finishUndo();
1310                 result = moveUp(bv);
1311                 updwhat = CURSOR;
1312                 break;
1313         case LFUN_HOME:
1314                 finishUndo();
1315                 lt->cursorHome(bv);
1316                 updwhat = CURSOR;
1317                 break;
1318         case LFUN_END:
1319                 lt->cursorEnd(bv);
1320                 updwhat = CURSOR;
1321                 break;
1322         case LFUN_BACKSPACE: {
1323                 setUndo(bv, Undo::DELETE,
1324                         lt->cursor.par(), lt->cursor.par()->next());
1325                 if (lt->selection.set())
1326                         lt->cutSelection(bv, true, false);
1327                 else
1328                         lt->backspace(bv);
1329                 updwhat = CURSOR_PAR;
1330                 updflag = true;
1331         }
1332         break;
1333
1334         case LFUN_DELETE: {
1335                 setUndo(bv, Undo::DELETE,
1336                         lt->cursor.par(), lt->cursor.par()->next());
1337                 if (lt->selection.set()) {
1338                         lt->cutSelection(bv, true, false);
1339                 } else {
1340                         lt->Delete(bv);
1341                 }
1342                 updwhat = CURSOR_PAR;
1343                 updflag = true;
1344         }
1345         break;
1346
1347         case LFUN_CUT: {
1348                 setUndo(bv, Undo::DELETE,
1349                         lt->cursor.par(), lt->cursor.par()->next());
1350                 lt->cutSelection(bv);
1351                 updwhat = CURSOR_PAR;
1352                 updflag = true;
1353         }
1354         break;
1355
1356         case LFUN_COPY:
1357                 finishUndo();
1358                 lt->copySelection(bv);
1359                 updwhat = CURSOR_PAR;
1360                 break;
1361         case LFUN_PASTESELECTION:
1362         {
1363                 string const clip(bv->getClipboard());
1364
1365                 if (clip.empty())
1366                         break;
1367                 if (ev.argument == "paragraph") {
1368                         lt->insertStringAsParagraphs(bv, clip);
1369                 } else {
1370                         lt->insertStringAsLines(bv, clip);
1371                 }
1372                 // bug 393
1373                 lt->clearSelection();
1374
1375                 updwhat = CURSOR_PAR;
1376                 updflag = true;
1377                 break;
1378         }
1379         case LFUN_PASTE: {
1380                 if (!autoBreakRows) {
1381
1382                         if (CutAndPaste::nrOfParagraphs() > 1) {
1383                                 Alert::alert(_("Impossible operation"),
1384                                                    _("Cannot include more than one paragraph!"),
1385                                                    _("Sorry."));
1386                                 break;
1387                         }
1388                 }
1389                 setUndo(bv, Undo::INSERT,
1390                         lt->cursor.par(), lt->cursor.par()->next());
1391                 lt->pasteSelection(bv);
1392                 // bug 393
1393                 lt->clearSelection();
1394                 updwhat = CURSOR_PAR;
1395                 updflag = true;
1396         }
1397         break;
1398
1399         case LFUN_BREAKPARAGRAPH:
1400                 if (!autoBreakRows) {
1401                         result = DISPATCHED;
1402                         break;
1403                 }
1404                 lt->breakParagraph(bv, 0);
1405                 updwhat = CURSOR | FULL;
1406                 updflag = true;
1407                 break;
1408         case LFUN_BREAKPARAGRAPHKEEPLAYOUT:
1409                 if (!autoBreakRows) {
1410                         result = DISPATCHED;
1411                         break;
1412                 }
1413                 lt->breakParagraph(bv, 1);
1414                 updwhat = CURSOR | FULL;
1415                 updflag = true;
1416                 break;
1417
1418         case LFUN_BREAKLINE: {
1419                 if (!autoBreakRows) {
1420                         result = DISPATCHED;
1421                         break;
1422                 }
1423                 setUndo(bv, Undo::INSERT,
1424                         lt->cursor.par(), lt->cursor.par()->next());
1425                 lt->insertChar(bv, Paragraph::META_NEWLINE);
1426                 updwhat = CURSOR | CURSOR_PAR;
1427                 updflag = true;
1428         }
1429         break;
1430
1431         case LFUN_LAYOUT:
1432                 // do not set layouts on non breakable textinsets
1433                 if (autoBreakRows) {
1434                         string cur_layout = cpar(bv)->layout()->name();
1435
1436                         // Derive layout number from given argument (string)
1437                         // and current buffer's textclass (number). */
1438                         LyXTextClass const & tclass =
1439                                 bv->buffer()->params.getLyXTextClass();
1440                         string layout = ev.argument;
1441                         bool hasLayout = tclass.hasLayout(layout);
1442
1443                         // If the entry is obsolete, use the new one instead.
1444                         if (hasLayout) {
1445                                 string const & obs =
1446                                         tclass[layout]->obsoleted_by();
1447                                 if (!obs.empty())
1448                                         layout = obs;
1449                         }
1450
1451                         // see if we found the layout number:
1452                         if (!hasLayout) {
1453                                 FuncRequest lf(LFUN_MESSAGE, N_("Layout ") + ev.argument + N_(" not known"));
1454                                 bv->owner()->dispatch(lf);
1455                                 break;
1456                         }
1457
1458                         if (cur_layout != layout) {
1459                                 cur_layout = layout;
1460                                 lt->setLayout(bv, layout);
1461                                 bv->owner()->setLayout(cpar(bv)->layout()->name());
1462                                 updwhat = CURSOR_PAR;
1463                                 updflag = true;
1464                         }
1465                 } else {
1466                         // reset the layout box
1467                         bv->owner()->setLayout(cpar(bv)->layout()->name());
1468                 }
1469                 break;
1470         case LFUN_PARAGRAPH_SPACING:
1471                 // This one is absolutely not working. When fiddling with this
1472                 // it also seems to me that the paragraphs inside the insettext
1473                 // inherit bufferparams/paragraphparams in a strange way. (Lgb)
1474         {
1475                 Paragraph * par = lt->cursor.par();
1476                 Spacing::Space cur_spacing = par->params().spacing().getSpace();
1477                 float cur_value = 1.0;
1478                 if (cur_spacing == Spacing::Other) {
1479                         cur_value = par->params().spacing().getValue();
1480                 }
1481
1482                 istringstream istr(ev.argument.c_str());
1483                 string tmp;
1484                 istr >> tmp;
1485                 Spacing::Space new_spacing = cur_spacing;
1486                 float new_value = cur_value;
1487                 if (tmp.empty()) {
1488                         lyxerr << "Missing argument to `paragraph-spacing'"
1489                                    << endl;
1490                 } else if (tmp == "single") {
1491                         new_spacing = Spacing::Single;
1492                 } else if (tmp == "onehalf") {
1493                         new_spacing = Spacing::Onehalf;
1494                 } else if (tmp == "double") {
1495                         new_spacing = Spacing::Double;
1496                 } else if (tmp == "other") {
1497                         new_spacing = Spacing::Other;
1498                         float tmpval = 0.0;
1499                         istr >> tmpval;
1500                         lyxerr << "new_value = " << tmpval << endl;
1501                         if (tmpval != 0.0)
1502                                 new_value = tmpval;
1503                 } else if (tmp == "default") {
1504                         new_spacing = Spacing::Default;
1505                 } else {
1506                         lyxerr << _("Unknown spacing argument: ")
1507                                    << ev.argument << endl;
1508                 }
1509                 if (cur_spacing != new_spacing || cur_value != new_value) {
1510                         par->params().spacing(Spacing(new_spacing, new_value));
1511                         updwhat = CURSOR_PAR;
1512                         updflag = true;
1513                 }
1514         }
1515         break;
1516
1517         default:
1518                 if (!bv->dispatch(ev))
1519                         result = UNDISPATCHED;
1520                 break;
1521         }
1522
1523         if (clear)
1524                 lt = 0;
1525         if (updwhat > 0)
1526                 updateLocal(bv, updwhat, updflag);
1527         /// If the action has deleted all text in the inset, we need to change the
1528         // language to the language of the surronding text.
1529         if (!was_empty && paragraphs.begin()->empty() && !paragraphs.begin()->next()) {
1530                 LyXFont font(LyXFont::ALL_IGNORE);
1531                 font.setLanguage(bv->getParentLanguage(this));
1532                 setFont(bv, font, false);
1533         }
1534
1535         if (result >= FINISHED)
1536                 bv->unlockInset(this);
1537
1538         if (result == DISPATCHED_NOUPDATE && (need_update & FULL))
1539                 result = DISPATCHED;
1540         return result;
1541 }
1542
1543
1544 int InsetText::latex(Buffer const * buf, ostream & os,
1545                      bool moving_arg, bool) const
1546 {
1547         TexRow texrow;
1548         buf->latexParagraphs(os, &*(paragraphs.begin()), 0,
1549                              texrow, moving_arg);
1550         return texrow.rows();
1551 }
1552
1553
1554 int InsetText::ascii(Buffer const * buf, ostream & os, int linelen) const
1555 {
1556         unsigned int lines = 0;
1557
1558         ParagraphList::iterator beg = paragraphs.begin();
1559         ParagraphList::iterator end = paragraphs.end();
1560         ParagraphList::iterator it = beg;
1561         for (; it != end; ++it) {
1562                 string const tmp = buf->asciiParagraph(&*it, linelen, it == beg);
1563                 lines += lyx::count(tmp.begin(), tmp.end(), '\n');
1564                 os << tmp;
1565         }
1566         return lines;
1567 }
1568
1569
1570 int InsetText::docbook(Buffer const * buf, ostream & os, bool mixcont) const
1571 {
1572         Paragraph * p = &*(paragraphs.begin());
1573         unsigned int lines = 0;
1574
1575         vector<string> environment_stack(10);
1576         vector<string> environment_inner(10);
1577
1578         int const command_depth = 0;
1579         string item_name;
1580
1581         Paragraph::depth_type depth = 0; // paragraph depth
1582
1583         while (p) {
1584                 string sgmlparam;
1585                 int desc_on = 0; // description mode
1586
1587                 LyXLayout_ptr const & style = p->layout();
1588
1589                 // environment tag closing
1590                 for (; depth > p->params().depth(); --depth) {
1591                         if (environment_inner[depth] != "!-- --") {
1592                                 item_name = "listitem";
1593                                 lines += buf->sgmlCloseTag(os, command_depth + depth, mixcont, item_name);
1594                                 if (environment_inner[depth] == "varlistentry")
1595                                         lines += buf->sgmlCloseTag(os, depth+command_depth, mixcont, environment_inner[depth]);
1596                         }
1597                         lines += buf->sgmlCloseTag(os, depth + command_depth, mixcont, environment_stack[depth]);
1598                         environment_stack[depth].erase();
1599                         environment_inner[depth].erase();
1600                 }
1601
1602                 if (depth == p->params().depth()
1603                    && environment_stack[depth] != style->latexname()
1604                    && !environment_stack[depth].empty()) {
1605                         if (environment_inner[depth] != "!-- --") {
1606                                 item_name= "listitem";
1607                                 lines += buf->sgmlCloseTag(os, command_depth+depth, mixcont, item_name);
1608                                 if (environment_inner[depth] == "varlistentry")
1609                                         lines += buf->sgmlCloseTag(os, depth + command_depth, mixcont, environment_inner[depth]);
1610                         }
1611
1612                         lines += buf->sgmlCloseTag(os, depth + command_depth, mixcont, environment_stack[depth]);
1613
1614                         environment_stack[depth].erase();
1615                         environment_inner[depth].erase();
1616                 }
1617
1618                 // Write opening SGML tags.
1619                 switch (style->latextype) {
1620                 case LATEX_PARAGRAPH:
1621                         lines += buf->sgmlOpenTag(os, depth + command_depth, mixcont, style->latexname());
1622                         break;
1623
1624                 case LATEX_COMMAND:
1625                         buf->sgmlError(p, 0,  _("Error : LatexType Command not allowed here.\n"));
1626                         return -1;
1627                         break;
1628
1629                 case LATEX_ENVIRONMENT:
1630                 case LATEX_ITEM_ENVIRONMENT:
1631                         if (depth < p->params().depth()) {
1632                                 depth = p->params().depth();
1633                                 environment_stack[depth].erase();
1634                         }
1635
1636                         if (environment_stack[depth] != style->latexname()) {
1637                                 if (environment_stack.size() == depth + 1) {
1638                                         environment_stack.push_back("!-- --");
1639                                         environment_inner.push_back("!-- --");
1640                                 }
1641                                 environment_stack[depth] = style->latexname();
1642                                 environment_inner[depth] = "!-- --";
1643                                 lines += buf->sgmlOpenTag(os, depth + command_depth, mixcont, environment_stack[depth]);
1644                         } else {
1645                                 if (environment_inner[depth] != "!-- --") {
1646                                         item_name= "listitem";
1647                                         lines += buf->sgmlCloseTag(os, command_depth + depth, mixcont, item_name);
1648                                         if (environment_inner[depth] == "varlistentry")
1649                                                 lines += buf->sgmlCloseTag(os, depth + command_depth, mixcont, environment_inner[depth]);
1650                                 }
1651                         }
1652
1653                         if (style->latextype == LATEX_ENVIRONMENT) {
1654                                 if (!style->latexparam().empty()) {
1655                                         if (style->latexparam() == "CDATA")
1656                                                 os << "<![CDATA[";
1657                                         else
1658                                           lines += buf->sgmlOpenTag(os, depth + command_depth, mixcont, style->latexparam());
1659                                 }
1660                                 break;
1661                         }
1662
1663                         desc_on = (style->labeltype == LABEL_MANUAL);
1664
1665                         environment_inner[depth] = desc_on?"varlistentry":"listitem";
1666                         lines += buf->sgmlOpenTag(os, depth + 1 + command_depth, mixcont, environment_inner[depth]);
1667
1668                         item_name = desc_on?"term":"para";
1669                         lines += buf->sgmlOpenTag(os, depth + 1 + command_depth, mixcont, item_name);
1670
1671                         break;
1672                 default:
1673                         lines += buf->sgmlOpenTag(os, depth + command_depth, mixcont, style->latexname());
1674                         break;
1675                 }
1676
1677                 buf->simpleDocBookOnePar(os, p, desc_on, depth + 1 + command_depth);
1678                 p = p->next();
1679
1680                 string end_tag;
1681                 // write closing SGML tags
1682                 switch (style->latextype) {
1683                 case LATEX_ENVIRONMENT:
1684                         if (!style->latexparam().empty()) {
1685                                 if (style->latexparam() == "CDATA")
1686                                         os << "]]>";
1687                                 else
1688                                         lines += buf->sgmlCloseTag(os, depth + command_depth, mixcont, style->latexparam());
1689                         }
1690                         break;
1691                 case LATEX_ITEM_ENVIRONMENT:
1692                         if (desc_on == 1) break;
1693                         end_tag= "para";
1694                         lines += buf->sgmlCloseTag(os, depth + 1 + command_depth, mixcont, end_tag);
1695                         break;
1696                 case LATEX_PARAGRAPH:
1697                         lines += buf->sgmlCloseTag(os, depth + command_depth, mixcont, style->latexname());
1698                         break;
1699                 default:
1700                         lines += buf->sgmlCloseTag(os, depth + command_depth, mixcont, style->latexname());
1701                         break;
1702                 }
1703         }
1704
1705         // Close open tags
1706         for (int d = depth; d >= 0; --d) {
1707                 if (!environment_stack[depth].empty()) {
1708                         if (environment_inner[depth] != "!-- --") {
1709                                 item_name = "listitem";
1710                                 lines += buf->sgmlCloseTag(os, command_depth + depth, mixcont, item_name);
1711                                if (environment_inner[depth] == "varlistentry")
1712                                        lines += buf->sgmlCloseTag(os, depth + command_depth, mixcont, environment_inner[depth]);
1713                         }
1714
1715                         lines += buf->sgmlCloseTag(os, depth + command_depth, mixcont, environment_stack[depth]);
1716                 }
1717         }
1718
1719         return lines;
1720 }
1721
1722
1723 void InsetText::validate(LaTeXFeatures & features) const
1724 {
1725         for_each(paragraphs.begin(), paragraphs.end(),
1726                  boost::bind(&Paragraph::validate, _1, boost::ref(features)));
1727 }
1728
1729
1730 int InsetText::beginningOfMainBody(Paragraph * p) const
1731 {
1732         if (p->layout()->labeltype != LABEL_MANUAL)
1733                 return 0;
1734         else
1735                 return p->beginningOfMainBody();
1736 }
1737
1738
1739 void InsetText::getCursorPos(BufferView * bv, int & x, int & y) const
1740 {
1741         if (the_locking_inset) {
1742                 the_locking_inset->getCursorPos(bv, x, y);
1743                 return;
1744         }
1745         x = cx(bv) - top_x - TEXT_TO_INSET_OFFSET;
1746         y = cy(bv) - TEXT_TO_INSET_OFFSET;
1747 }
1748
1749
1750 int InsetText::insetInInsetY() const
1751 {
1752         if (!the_locking_inset)
1753                 return 0;
1754
1755         return (inset_y + the_locking_inset->insetInInsetY());
1756 }
1757
1758
1759 void InsetText::toggleInsetCursor(BufferView * bv)
1760 {
1761         if (the_locking_inset) {
1762                 the_locking_inset->toggleInsetCursor(bv);
1763                 return;
1764         }
1765
1766         LyXFont const font(getLyXText(bv)->getFont(bv->buffer(), cpar(bv), cpos(bv)));
1767
1768         int const asc = font_metrics::maxAscent(font);
1769         int const desc = font_metrics::maxDescent(font);
1770
1771         if (isCursorVisible())
1772                 bv->hideLockedInsetCursor();
1773         else
1774                 bv->showLockedInsetCursor(cx(bv), cy(bv), asc, desc);
1775         toggleCursorVisible();
1776 }
1777
1778
1779 void InsetText::showInsetCursor(BufferView * bv, bool show)
1780 {
1781         if (the_locking_inset) {
1782                 the_locking_inset->showInsetCursor(bv, show);
1783                 return;
1784         }
1785         if (!isCursorVisible()) {
1786                 LyXFont const font =
1787                         getLyXText(bv)->getFont(bv->buffer(), cpar(bv), cpos(bv));
1788
1789                 int const asc = font_metrics::maxAscent(font);
1790                 int const desc = font_metrics::maxDescent(font);
1791
1792                 bv->fitLockedInsetCursor(cx(bv), cy(bv), asc, desc);
1793                 if (show)
1794                         bv->showLockedInsetCursor(cx(bv), cy(bv), asc, desc);
1795                 setCursorVisible(true);
1796         }
1797 }
1798
1799
1800 void InsetText::hideInsetCursor(BufferView * bv)
1801 {
1802         if (isCursorVisible()) {
1803                 bv->hideLockedInsetCursor();
1804                 setCursorVisible(false);
1805         }
1806         if (the_locking_inset)
1807                 the_locking_inset->hideInsetCursor(bv);
1808 }
1809
1810
1811 void InsetText::fitInsetCursor(BufferView * bv) const
1812 {
1813         if (the_locking_inset) {
1814                 the_locking_inset->fitInsetCursor(bv);
1815                 return;
1816         }
1817         LyXFont const font =
1818                 getLyXText(bv)->getFont(bv->buffer(), cpar(bv), cpos(bv));
1819
1820         int const asc = font_metrics::maxAscent(font);
1821         int const desc = font_metrics::maxDescent(font);
1822
1823         if (bv->fitLockedInsetCursor(cx(bv), cy(bv), asc, desc))
1824                 need_update |= FULL;
1825 }
1826
1827
1828 UpdatableInset::RESULT
1829 InsetText::moveRight(BufferView * bv, bool activate_inset, bool selecting)
1830 {
1831         if (getLyXText(bv)->cursor.par()->isRightToLeftPar(bv->buffer()->params))
1832                 return moveLeftIntern(bv, false, activate_inset, selecting);
1833         else
1834                 return moveRightIntern(bv, true, activate_inset, selecting);
1835 }
1836
1837
1838 UpdatableInset::RESULT
1839 InsetText::moveLeft(BufferView * bv, bool activate_inset, bool selecting)
1840 {
1841         if (getLyXText(bv)->cursor.par()->isRightToLeftPar(bv->buffer()->params))
1842                 return moveRightIntern(bv, true, activate_inset, selecting);
1843         else
1844                 return moveLeftIntern(bv, false, activate_inset, selecting);
1845 }
1846
1847
1848 UpdatableInset::RESULT
1849 InsetText::moveRightIntern(BufferView * bv, bool front,
1850                            bool activate_inset, bool selecting)
1851 {
1852         if (!cpar(bv)->next() && (cpos(bv) >= cpar(bv)->size()))
1853                 return FINISHED_RIGHT;
1854         if (activate_inset && checkAndActivateInset(bv, front))
1855                 return DISPATCHED;
1856         getLyXText(bv)->cursorRight(bv);
1857         if (!selecting)
1858                 getLyXText(bv)->selection.cursor = getLyXText(bv)->cursor;
1859         return DISPATCHED_NOUPDATE;
1860 }
1861
1862
1863 UpdatableInset::RESULT
1864 InsetText::moveLeftIntern(BufferView * bv, bool front,
1865                           bool activate_inset, bool selecting)
1866 {
1867         if (!cpar(bv)->previous() && (cpos(bv) <= 0))
1868                 return FINISHED;
1869         getLyXText(bv)->cursorLeft(bv);
1870         if (!selecting)
1871                 getLyXText(bv)->selection.cursor = getLyXText(bv)->cursor;
1872         if (activate_inset && checkAndActivateInset(bv, front))
1873                 return DISPATCHED;
1874         return DISPATCHED_NOUPDATE;
1875 }
1876
1877
1878 UpdatableInset::RESULT
1879 InsetText::moveUp(BufferView * bv)
1880 {
1881         if (!crow(bv)->previous())
1882                 return FINISHED_UP;
1883         getLyXText(bv)->cursorUp(bv);
1884         return DISPATCHED_NOUPDATE;
1885 }
1886
1887
1888 UpdatableInset::RESULT
1889 InsetText::moveDown(BufferView * bv)
1890 {
1891         if (!crow(bv)->next())
1892                 return FINISHED_DOWN;
1893         getLyXText(bv)->cursorDown(bv);
1894         return DISPATCHED_NOUPDATE;
1895 }
1896
1897
1898 bool InsetText::insertInset(BufferView * bv, Inset * inset)
1899 {
1900         if (the_locking_inset) {
1901                 if (the_locking_inset->insetAllowed(inset))
1902                         return the_locking_inset->insertInset(bv, inset);
1903                 return false;
1904         }
1905         inset->setOwner(this);
1906         hideInsetCursor(bv);
1907         getLyXText(bv)->insertInset(bv, inset);
1908         bv->fitCursor();
1909         updateLocal(bv, CURSOR_PAR|CURSOR, true);
1910         return true;
1911 }
1912
1913
1914 bool InsetText::insetAllowed(Inset::Code code) const
1915 {
1916         // in_insetAllowed is a really gross hack,
1917         // to allow us to call the owner's insetAllowed
1918         // without stack overflow, which can happen
1919         // when the owner uses InsetCollapsable::insetAllowed()
1920         bool ret = true;
1921         if (in_insetAllowed)
1922                 return ret;
1923         in_insetAllowed = true;
1924         if (the_locking_inset)
1925                 ret = the_locking_inset->insetAllowed(code);
1926         else if (owner())
1927                 ret = owner()->insetAllowed(code);
1928         in_insetAllowed = false;
1929         return ret;
1930 }
1931
1932
1933 UpdatableInset * InsetText::getLockingInset() const
1934 {
1935         return the_locking_inset ? the_locking_inset->getLockingInset() :
1936                 const_cast<InsetText *>(this);
1937 }
1938
1939
1940 UpdatableInset * InsetText::getFirstLockingInsetOfType(Inset::Code c)
1941 {
1942         if (c == lyxCode())
1943                 return this;
1944         if (the_locking_inset)
1945                 return the_locking_inset->getFirstLockingInsetOfType(c);
1946         return 0;
1947 }
1948
1949
1950 bool InsetText::showInsetDialog(BufferView * bv) const
1951 {
1952         if (the_locking_inset)
1953                 return the_locking_inset->showInsetDialog(bv);
1954         return false;
1955 }
1956
1957
1958 vector<string> const InsetText::getLabelList() const
1959 {
1960         vector<string> label_list;
1961
1962         ParagraphList::iterator pit = paragraphs.begin();
1963         ParagraphList::iterator pend = paragraphs.end();
1964         for (; pit != pend; ++pit) {
1965                 InsetList::iterator beg = pit->insetlist.begin();
1966                 InsetList::iterator end = pit->insetlist.end();
1967                 for (; beg != end; ++beg) {
1968                         vector<string> const l = beg.getInset()->getLabelList();
1969                         label_list.insert(label_list.end(), l.begin(), l.end());
1970                 }
1971         }
1972         return label_list;
1973 }
1974
1975
1976 void InsetText::setFont(BufferView * bv, LyXFont const & font, bool toggleall,
1977                         bool selectall)
1978 {
1979         if (the_locking_inset) {
1980                 the_locking_inset->setFont(bv, font, toggleall, selectall);
1981                 return;
1982         }
1983         if ((!paragraphs.begin()->next() && paragraphs.begin()->empty()) || cpar(bv)->empty()) {
1984                 getLyXText(bv)->setFont(bv, font, toggleall);
1985                 return;
1986         }
1987         bool clear = false;
1988         if (!lt) {
1989                 lt = getLyXText(bv);
1990                 clear = true;
1991         }
1992         if (lt->selection.set()) {
1993                 setUndo(bv, Undo::EDIT, lt->cursor.par(), lt->cursor.par()->next());
1994         }
1995         if (selectall)
1996                 selectAll(bv);
1997         lt->toggleFree(bv, font, toggleall);
1998         if (selectall)
1999                 lt->clearSelection();
2000         bv->fitCursor();
2001         bool flag = (selectall || lt->selection.set());
2002         if (clear)
2003                 lt = 0;
2004         if (flag)
2005                 updateLocal(bv, FULL, true);
2006         else
2007                 updateLocal(bv, CURSOR_PAR, true);
2008 }
2009
2010
2011 bool InsetText::checkAndActivateInset(BufferView * bv, bool front)
2012 {
2013         if (cpar(bv)->isInset(cpos(bv))) {
2014                 Inset * inset =
2015                         static_cast<UpdatableInset*>(cpar(bv)->getInset(cpos(bv)));
2016                 if (!isHighlyEditableInset(inset))
2017                         return false;
2018                 inset->edit(bv, front);
2019                 if (!the_locking_inset)
2020                         return false;
2021                 updateLocal(bv, CURSOR, false);
2022                 return true;
2023         }
2024         return false;
2025 }
2026
2027
2028 bool InsetText::checkAndActivateInset(BufferView * bv, int x, int y,
2029                                       mouse_button::state button)
2030 {
2031         x -= drawTextXOffset;
2032         int dummyx = x;
2033         int dummyy = y + insetAscent;
2034         Inset * inset = bv->checkInsetHit(getLyXText(bv), dummyx, dummyy);
2035         // we only do the edit() call if the inset was hit by the mouse
2036         // or if it is a highly editable inset. So we should call this
2037         // function from our own edit with button < 0.
2038         // FIXME: GUII jbl. I've changed this to ::none for now which is probably
2039         // WRONG
2040         if (button == mouse_button::none && !isHighlyEditableInset(inset))
2041                 return false;
2042
2043         if (inset) {
2044                 if (x < 0)
2045                         x = insetWidth;
2046                 if (y < 0)
2047                         y = insetDescent;
2048                 inset_x = cix(bv) - top_x + drawTextXOffset;
2049                 inset_y = ciy(bv) + drawTextYOffset;
2050                 inset->edit(bv, x - inset_x, y - inset_y, button);
2051                 if (!the_locking_inset)
2052                         return false;
2053                 updateLocal(bv, CURSOR, false);
2054                 return true;
2055         }
2056         return false;
2057 }
2058
2059
2060 int InsetText::getMaxWidth(BufferView * bv, UpdatableInset const * inset) const
2061 {
2062 #if 0
2063         int w = UpdatableInset::getMaxWidth(bv, inset);
2064         if (w < 0) {
2065                 return -1;
2066         }
2067         if (owner()) {
2068                 w = w - top_x + owner()->x();
2069                 return w;
2070         }
2071         w -= (2 * TEXT_TO_INSET_OFFSET);
2072         return w - top_x;
2073 #else
2074         return UpdatableInset::getMaxWidth(bv, inset);
2075 #endif
2076 }
2077
2078
2079 void InsetText::setParagraphData(Paragraph * p, bool same_id)
2080 {
2081         // we have to unlock any locked inset otherwise we're in troubles
2082         the_locking_inset = 0;
2083
2084         paragraphs.clear();
2085         paragraphs.set(new Paragraph(*p, same_id));
2086         paragraphs.begin()->setInsetOwner(this);
2087         Paragraph * np = &*(paragraphs.begin());
2088         while (p->next()) {
2089                 p = p->next();
2090                 np->next(new Paragraph(*p, same_id));
2091                 np->next()->previous(np);
2092                 np = np->next();
2093                 np->setInsetOwner(this);
2094         }
2095         reinitLyXText();
2096         need_update = INIT;
2097 }
2098
2099
2100 void InsetText::setText(string const & data, LyXFont const & font)
2101 {
2102         clear();
2103         for (unsigned int i = 0; i < data.length(); ++i)
2104                 paragraphs.begin()->insertChar(i, data[i], font);
2105         reinitLyXText();
2106 }
2107
2108
2109 void InsetText::setAutoBreakRows(bool flag)
2110 {
2111         if (flag != autoBreakRows) {
2112                 autoBreakRows = flag;
2113                 if (!flag)
2114                         removeNewlines();
2115                 need_update = INIT;
2116         }
2117 }
2118
2119
2120 void InsetText::setDrawFrame(BufferView * bv, DrawFrame how)
2121 {
2122         if (how != drawFrame_) {
2123                 drawFrame_ = how;
2124                 if (bv)
2125                         updateLocal(bv, DRAW_FRAME, false);
2126         }
2127 }
2128
2129
2130 void InsetText::setFrameColor(BufferView * bv, LColor::color col)
2131 {
2132         if (frame_color != col) {
2133                 frame_color = col;
2134                 if (bv)
2135                         updateLocal(bv, DRAW_FRAME, false);
2136         }
2137 }
2138
2139
2140 int InsetText::cx(BufferView * bv) const
2141 {
2142         // we do nothing dangerous so we use a local cache
2143         LyXText * llt = getLyXText(bv);
2144         int x = llt->cursor.x() + top_x + TEXT_TO_INSET_OFFSET;
2145         if (the_locking_inset) {
2146                 LyXFont font = llt->getFont(bv->buffer(), llt->cursor.par(),
2147                                             llt->cursor.pos());
2148                 if (font.isVisibleRightToLeft())
2149                         x -= the_locking_inset->width(bv, font);
2150         }
2151         return x;
2152 }
2153
2154
2155 int InsetText::cix(BufferView * bv) const
2156 {
2157         // we do nothing dangerous so we use a local cache
2158         LyXText * llt = getLyXText(bv);
2159         int x = llt->cursor.ix() + top_x + TEXT_TO_INSET_OFFSET;
2160         if (the_locking_inset) {
2161                 LyXFont font = llt->getFont(bv->buffer(), llt->cursor.par(),
2162                                             llt->cursor.pos());
2163                 if (font.isVisibleRightToLeft())
2164                         x -= the_locking_inset->width(bv, font);
2165         }
2166         return x;
2167 }
2168
2169
2170 int InsetText::cy(BufferView * bv) const
2171 {
2172         LyXFont font;
2173         return getLyXText(bv)->cursor.y() - ascent(bv, font) + TEXT_TO_INSET_OFFSET;
2174 }
2175
2176
2177 int InsetText::ciy(BufferView * bv) const
2178 {
2179         LyXFont font;
2180         return getLyXText(bv)->cursor.iy() - ascent(bv, font) + TEXT_TO_INSET_OFFSET;
2181 }
2182
2183
2184 pos_type InsetText::cpos(BufferView * bv) const
2185 {
2186         return getLyXText(bv)->cursor.pos();
2187 }
2188
2189
2190 Paragraph * InsetText::cpar(BufferView * bv) const
2191 {
2192         return getLyXText(bv)->cursor.par();
2193 }
2194
2195
2196 bool InsetText::cboundary(BufferView * bv) const
2197 {
2198         return getLyXText(bv)->cursor.boundary();
2199 }
2200
2201
2202 Row * InsetText::crow(BufferView * bv) const
2203 {
2204         return getLyXText(bv)->cursor.row();
2205 }
2206
2207
2208 LyXText * InsetText::getLyXText(BufferView const * lbv,
2209                                 bool const recursive) const
2210 {
2211         if (cached_bview == lbv) {
2212                 if (recursive && the_locking_inset)
2213                         return the_locking_inset->getLyXText(lbv, true);
2214                 LyXText * lt = cached_text.get();
2215                 lyx::Assert(lt && lt->firstRow()->par() == &*(paragraphs.begin()));
2216                 return lt;
2217         }
2218         // Super UGLY! (Lgb)
2219         BufferView * bv = const_cast<BufferView *>(lbv);
2220
2221         cached_bview = bv;
2222         Cache::iterator it = cache.find(bv);
2223
2224         if (it != cache.end()) {
2225                 if (do_reinit) {
2226                         reinitLyXText();
2227                 } else if (do_resize) {
2228                         resizeLyXText(do_resize);
2229                 } else {
2230                         if (lt || !it->second.remove) {
2231                                 lyx::Assert(it->second.text.get());
2232                                 cached_text = it->second.text;
2233                                 if (recursive && the_locking_inset) {
2234                                         return the_locking_inset->getLyXText(bv, true);
2235                                 }
2236                                 return cached_text.get();
2237                         } else if (it->second.remove) {
2238                                 if (locked) {
2239                                         saveLyXTextState(it->second.text.get());
2240                                 } else {
2241                                         sstate.lpar = 0;
2242                                 }
2243                         }
2244                         //
2245                         // when we have to reinit the existing LyXText!
2246                         //
2247                         it->second.text->init(bv);
2248                         restoreLyXTextState(bv, it->second.text.get());
2249                         it->second.remove = false;
2250                 }
2251                 cached_text = it->second.text;
2252                 if (the_locking_inset && recursive) {
2253                         return the_locking_inset->getLyXText(bv);
2254                 }
2255                 return cached_text.get();
2256         }
2257         ///
2258         // we are here only if we don't have a BufferView * in the cache!!!
2259         ///
2260         cached_text.reset(new LyXText(const_cast<InsetText *>(this)));
2261         cached_text->init(bv);
2262         restoreLyXTextState(bv, cached_text.get());
2263
2264         cache.insert(make_pair(bv, cached_text));
2265
2266         if (the_locking_inset && recursive) {
2267                 return the_locking_inset->getLyXText(bv);
2268         }
2269         return cached_text.get();
2270 }
2271
2272
2273 void InsetText::deleteLyXText(BufferView * bv, bool recursive) const
2274 {
2275         cached_bview = 0;
2276
2277         Cache::iterator it = cache.find(bv);
2278
2279         if (it == cache.end()) {
2280                 return;
2281         }
2282
2283         lyx::Assert(it->second.text.get());
2284
2285         it->second.remove = true;
2286         if (recursive) {
2287                 /// then remove all LyXText in text-insets
2288                 for_each(paragraphs.begin(), paragraphs.end(),
2289                          boost::bind(&Paragraph::deleteInsetsLyXText, _1, bv));
2290         }
2291 }
2292
2293
2294 void InsetText::resizeLyXText(BufferView * bv, bool force) const
2295 {
2296         if (lt) {
2297                 // we cannot resize this because we are in use!
2298                 // so do this on the next possible getLyXText()
2299                 do_resize = bv;
2300                 return;
2301         }
2302         do_resize = 0;
2303 //      lyxerr << "InsetText::resizeLyXText\n";
2304         if (!paragraphs.begin()->next() && paragraphs.begin()->empty()) { // no data, resize not neccessary!
2305                 // we have to do this as a fixed width may have changed!
2306                 LyXText * t = getLyXText(bv);
2307                 saveLyXTextState(t);
2308                 t->init(bv, true);
2309                 restoreLyXTextState(bv, t);
2310                 return;
2311         }
2312         // one endless line, resize normally not necessary
2313         if (!force && getMaxWidth(bv, this) < 0)
2314                 return;
2315
2316         Cache::iterator it = cache.find(bv);
2317         if (it == cache.end()) {
2318                 return;
2319         }
2320         lyx::Assert(it->second.text.get());
2321
2322         LyXText * t = it->second.text.get();
2323         saveLyXTextState(t);
2324
2325         for_each(paragraphs.begin(), paragraphs.end(),
2326                  boost::bind(&Paragraph::resizeInsetsLyXText, _1, bv));
2327
2328         t->init(bv, true);
2329         restoreLyXTextState(bv, t);
2330         if (the_locking_inset) {
2331                 inset_x = cix(bv) - top_x + drawTextXOffset;
2332                 inset_y = ciy(bv) + drawTextYOffset;
2333         }
2334
2335         t->first_y = bv->screen().topCursorVisible(t->cursor, t->first_y);
2336         if (!owner()) {
2337                 updateLocal(bv, FULL, false);
2338                 // this will scroll the screen such that the cursor becomes visible
2339                 bv->updateScrollbar();
2340         } else {
2341                 need_update |= FULL;
2342         }
2343 }
2344
2345
2346 void InsetText::reinitLyXText() const
2347 {
2348         if (lt) {
2349                 // we cannot resize this because we are in use!
2350                 // so do this on the next possible getLyXText()
2351                 do_reinit = true;
2352                 return;
2353         }
2354         do_reinit = false;
2355         do_resize = 0;
2356 //      lyxerr << "InsetText::reinitLyXText\n";
2357         for (Cache::iterator it = cache.begin(); it != cache.end(); ++it) {
2358                 lyx::Assert(it->second.text.get());
2359
2360                 LyXText * t = it->second.text.get();
2361                 BufferView * bv = it->first;
2362
2363                 saveLyXTextState(t);
2364
2365                 for_each(paragraphs.begin(), paragraphs.end(),
2366                          boost::bind(&Paragraph::resizeInsetsLyXText, _1, bv));
2367
2368                 t->init(bv, true);
2369                 restoreLyXTextState(bv, t);
2370                 if (the_locking_inset) {
2371                         inset_x = cix(bv) - top_x + drawTextXOffset;
2372                         inset_y = ciy(bv) + drawTextYOffset;
2373                 }
2374                 t->first_y = bv->screen().topCursorVisible(t->cursor, t->first_y);
2375                 if (!owner()) {
2376                         updateLocal(bv, FULL, false);
2377                         // this will scroll the screen such that the cursor becomes visible
2378                         bv->updateScrollbar();
2379                 } else {
2380                         need_update = FULL;
2381                 }
2382         }
2383 }
2384
2385
2386 void InsetText::removeNewlines()
2387 {
2388         bool changed = false;
2389
2390         ParagraphList::iterator it = paragraphs.begin();
2391         ParagraphList::iterator end = paragraphs.end();
2392         for (; it != end; ++it) {
2393                 for (int i = 0; i < it->size(); ++i) {
2394                         if (it->getChar(i) == Paragraph::META_NEWLINE) {
2395                                 changed = true;
2396                                 it->erase(i);
2397                         }
2398                 }
2399         }
2400         if (changed)
2401                 reinitLyXText();
2402 }
2403
2404
2405 bool InsetText::nodraw() const
2406 {
2407         if (the_locking_inset)
2408                 return the_locking_inset->nodraw();
2409         return UpdatableInset::nodraw();
2410 }
2411
2412
2413 int InsetText::scroll(bool recursive) const
2414 {
2415         int sx = UpdatableInset::scroll(false);
2416
2417         if (recursive && the_locking_inset)
2418                 sx += the_locking_inset->scroll(recursive);
2419
2420         return sx;
2421 }
2422
2423
2424 bool InsetText::doClearArea() const
2425 {
2426         return !locked || (need_update & (FULL|INIT));
2427 }
2428
2429
2430 void InsetText::selectAll(BufferView * bv)
2431 {
2432         getLyXText(bv)->cursorTop(bv);
2433         getLyXText(bv)->selection.cursor = getLyXText(bv)->cursor;
2434         getLyXText(bv)->cursorBottom(bv);
2435         getLyXText(bv)->setSelection(bv);
2436 }
2437
2438
2439 void InsetText::clearSelection(BufferView * bv)
2440 {
2441         getLyXText(bv)->clearSelection();
2442 }
2443
2444
2445 void InsetText::clearInset(BufferView * bv, int baseline, bool & cleared) const
2446 {
2447         Painter & pain = bv->painter();
2448         int w = insetWidth;
2449         int h = insetAscent + insetDescent;
2450         int ty = baseline - insetAscent;
2451
2452         if (ty < 0) {
2453                 h += ty;
2454                 ty = 0;
2455         }
2456         if ((ty + h) > pain.paperHeight())
2457                 h = pain.paperHeight();
2458         if ((top_x + drawTextXOffset + w) > pain.paperWidth())
2459                 w = pain.paperWidth();
2460 //      w -= TEXT_TO_INSET_OFFSET;
2461         pain.fillRectangle(top_x + 1, ty + 1, w - 1, h - 1, backgroundColor());
2462         cleared = true;
2463         need_update = FULL;
2464         frame_is_visible = false;
2465 }
2466
2467
2468 Paragraph * InsetText::getParFromID(int id) const
2469 {
2470         ParagraphList::iterator it = paragraphs.begin();
2471         ParagraphList::iterator end = paragraphs.end();
2472         for (; it != end; ++it) {
2473                 if (it->id() == id) {
2474                         return &*(it);
2475                 }
2476                 Paragraph * tmp2 = it->getParFromID(id);
2477                 if (tmp2 != 0) {
2478                         return tmp2;
2479                 }
2480         }
2481         return 0;
2482 }
2483
2484
2485 Paragraph * InsetText::firstParagraph() const
2486 {
2487         Paragraph * result;
2488         if (the_locking_inset)
2489                 if ((result = the_locking_inset->firstParagraph()))
2490                         return result;
2491         return &*(paragraphs.begin());
2492 }
2493
2494
2495 Paragraph * InsetText::getFirstParagraph(int i) const
2496 {
2497         return (i == 0) ? &*(paragraphs.begin()) : 0;
2498 }
2499
2500
2501 LyXCursor const & InsetText::cursor(BufferView * bv) const
2502 {
2503                 if (the_locking_inset)
2504                                 return the_locking_inset->cursor(bv);
2505                 return getLyXText(bv)->cursor;
2506 }
2507
2508
2509 Paragraph * InsetText::paragraph() const
2510 {
2511         return &*(paragraphs.begin());
2512 }
2513
2514
2515 void InsetText::paragraph(Paragraph * p)
2516 {
2517         // GENERAL COMMENT: We don't have to free the old paragraphs as the
2518         // caller of this function has to take care of it. This IS important
2519         // as we could have to insert a paragraph before this one and just
2520         // link the actual to a new ones next and set it with this function
2521         // and are done!
2522         paragraphs.set(p);
2523         // set ourself as owner for all the paragraphs inserted!
2524         for_each(paragraphs.begin(), paragraphs.end(),
2525                  boost::bind(&Paragraph::setInsetOwner, _1, this));
2526
2527         reinitLyXText();
2528         // redraw myself when asked for
2529         need_update = INIT;
2530 }
2531
2532
2533 Inset * InsetText::getInsetFromID(int id_arg) const
2534 {
2535         if (id_arg == id())
2536                 return const_cast<InsetText *>(this);
2537
2538         ParagraphList::iterator pit = paragraphs.begin();
2539         ParagraphList::iterator pend = paragraphs.end();
2540         for (; pit != pend; ++pit) {
2541                 InsetList::iterator it = pit->insetlist.begin();
2542                 InsetList::iterator end = pit->insetlist.end();
2543                 for (; it != end; ++it) {
2544                         if (it.getInset()->id() == id_arg)
2545                                 return it.getInset();
2546                         Inset * in = it.getInset()->getInsetFromID(id_arg);
2547                         if (in)
2548                                 return in;
2549                 }
2550         }
2551         return 0;
2552 }
2553
2554
2555 WordLangTuple const
2556 InsetText::selectNextWordToSpellcheck(BufferView * bv,
2557                                       float & value) const
2558 {
2559         bool clear = false;
2560         WordLangTuple word;
2561
2562         if (!lt) {
2563                 lt = getLyXText(bv);
2564                 clear = true;
2565         }
2566         if (the_locking_inset) {
2567                 word = the_locking_inset->selectNextWordToSpellcheck(bv, value);
2568                 if (!word.word().empty()) {
2569                         value += cy(bv);
2570                         if (clear)
2571                                 lt = 0;
2572                         return word;
2573                 }
2574                 // we have to go on checking so move cursor to the next char
2575                 lt->cursor.pos(lt->cursor.pos() + 1);
2576         }
2577         word = lt->selectNextWordToSpellcheck(bv, value);
2578         if (word.word().empty())
2579                 bv->unlockInset(const_cast<InsetText *>(this));
2580         else
2581                 value = cy(bv);
2582         if (clear)
2583                 lt = 0;
2584         return word;
2585 }
2586
2587
2588 void InsetText::selectSelectedWord(BufferView * bv)
2589 {
2590         if (the_locking_inset) {
2591                 the_locking_inset->selectSelectedWord(bv);
2592                 return;
2593         }
2594         getLyXText(bv)->selectSelectedWord(bv);
2595         updateLocal(bv, SELECTION, false);
2596 }
2597
2598
2599 void InsetText::toggleSelection(BufferView * bv, bool kill_selection)
2600 {
2601         if (the_locking_inset) {
2602                 the_locking_inset->toggleSelection(bv, kill_selection);
2603         }
2604         bool clear = false;
2605         if (!lt) {
2606                 lt = getLyXText(bv);
2607                 clear = true;
2608         }
2609
2610         int x = top_x + TEXT_TO_INSET_OFFSET;
2611
2612         Row * row = lt->firstRow();
2613         int y_offset = top_baseline - row->ascent_of_text();
2614         int y = y_offset;
2615         while ((row != 0) && ((y+row->height()) <= 0)) {
2616                 y += row->height();
2617                 row = row->next();
2618         }
2619         if (y_offset < 0)
2620                 y_offset = y;
2621
2622         if (need_update & SELECTION)
2623                 need_update = NONE;
2624         bv->screen().toggleSelection(lt, bv, kill_selection, y_offset, x);
2625         if (clear)
2626                 lt = 0;
2627 }
2628
2629
2630 bool InsetText::searchForward(BufferView * bv, string const & str,
2631                               bool cs, bool mw)
2632 {
2633         bool clear = false;
2634         if (!lt) {
2635                 lt = getLyXText(bv);
2636                 clear = true;
2637         }
2638         if (the_locking_inset) {
2639                 if (the_locking_inset->searchForward(bv, str, cs, mw))
2640                         return true;
2641                 lt->cursorRight(bv, true);
2642         }
2643         lyxfind::SearchResult result =
2644                 lyxfind::LyXFind(bv, lt, str, true, cs, mw);
2645
2646         if (result == lyxfind::SR_FOUND) {
2647                 LyXCursor cur = lt->cursor;
2648                 bv->unlockInset(bv->theLockingInset());
2649                 if (bv->lockInset(this))
2650                         locked = true;
2651                 lt->cursor = cur;
2652                 lt->setSelectionOverString(bv, str);
2653                 updateLocal(bv, SELECTION, false);
2654         }
2655         if (clear)
2656                 lt = 0;
2657         return (result != lyxfind::SR_NOT_FOUND);
2658 }
2659
2660 bool InsetText::searchBackward(BufferView * bv, string const & str,
2661                                bool cs, bool mw)
2662 {
2663         if (the_locking_inset) {
2664                 if (the_locking_inset->searchBackward(bv, str, cs, mw))
2665                         return true;
2666         }
2667         bool clear = false;
2668         if (!lt) {
2669                 lt = getLyXText(bv);
2670                 clear = true;
2671         }
2672         if (!locked) {
2673                 Paragraph * p = &*(paragraphs.begin());
2674                 while (p->next())
2675                         p = p->next();
2676                 lt->setCursor(bv, p, p->size());
2677         }
2678         lyxfind::SearchResult result =
2679                 lyxfind::LyXFind(bv, lt, str, false, cs, mw);
2680
2681         if (result == lyxfind::SR_FOUND) {
2682                 LyXCursor cur = lt->cursor;
2683                 bv->unlockInset(bv->theLockingInset());
2684                 if (bv->lockInset(this))
2685                         locked = true;
2686                 lt->cursor = cur;
2687                 lt->setSelectionOverString(bv, str);
2688                 updateLocal(bv, SELECTION, false);
2689         }
2690         if (clear)
2691                 lt = 0;
2692         return (result != lyxfind::SR_NOT_FOUND);
2693 }
2694
2695
2696 bool InsetText::checkInsertChar(LyXFont & font)
2697 {
2698         if (owner())
2699                 return owner()->checkInsertChar(font);
2700         return true;
2701 }
2702
2703
2704 void InsetText::collapseParagraphs(BufferView * bv) const
2705 {
2706         BufferParams const & bparams = bv->buffer()->params;
2707         LyXText * llt = getLyXText(bv);
2708
2709         while (paragraphs.begin()->next()) {
2710                 if (!paragraphs.begin()->empty() && !paragraphs.begin()->next()->empty() &&
2711                         !paragraphs.begin()->isSeparator(paragraphs.begin()->size() - 1))
2712                 {
2713                         paragraphs.begin()->insertChar(paragraphs.begin()->size(), ' ');
2714                 }
2715                 if (llt->selection.set()) {
2716                         if (llt->selection.start.par() == paragraphs.begin()->next()) {
2717                                 llt->selection.start.par(&*(paragraphs.begin()));
2718                                 llt->selection.start.pos(
2719                                         llt->selection.start.pos() + paragraphs.begin()->size());
2720                         }
2721                         if (llt->selection.end.par() == paragraphs.begin()->next()) {
2722                                 llt->selection.end.par(&*(paragraphs.begin()));
2723                                 llt->selection.end.pos(
2724                                         llt->selection.end.pos() + paragraphs.begin()->size());
2725                         }
2726                 }
2727                 paragraphs.begin()->pasteParagraph(bparams);
2728         }
2729         reinitLyXText();
2730 }
2731
2732
2733 void InsetText::getDrawFont(LyXFont & font) const
2734 {
2735         if (!owner())
2736                 return;
2737         owner()->getDrawFont(font);
2738 }
2739
2740
2741 void InsetText::appendParagraphs(BufferParams const & bparams,
2742                                  Paragraph * newpar)
2743 {
2744         Paragraph * buf;
2745         Paragraph * tmpbuf = newpar;
2746         Paragraph * lastbuffer = buf = new Paragraph(*tmpbuf, false);
2747
2748         while (tmpbuf->next()) {
2749                 tmpbuf = tmpbuf->next();
2750                 lastbuffer->next(new Paragraph(*tmpbuf, false));
2751                 lastbuffer->next()->previous(lastbuffer);
2752                 lastbuffer = lastbuffer->next();
2753         }
2754         lastbuffer = &*(paragraphs.begin());
2755         while (lastbuffer->next())
2756                 lastbuffer = lastbuffer->next();
2757         if (!newpar->empty() && !lastbuffer->empty() &&
2758                 !lastbuffer->isSeparator(lastbuffer->size() - 1))
2759         {
2760                 lastbuffer->insertChar(lastbuffer->size(), ' ');
2761         }
2762
2763         // make the buf exactly the same layout than our last paragraph
2764         buf->makeSameLayout(lastbuffer);
2765
2766         // paste it!
2767         lastbuffer->next(buf);
2768         buf->previous(lastbuffer);
2769         lastbuffer->pasteParagraph(bparams);
2770
2771         reinitLyXText();
2772 }
2773
2774
2775 void InsetText::addPreview(grfx::PreviewLoader & loader) const
2776 {
2777         Paragraph * par = getFirstParagraph(0);
2778         while (par) {
2779                 InsetList::iterator it  = par->insetlist.begin();
2780                 InsetList::iterator end = par->insetlist.end();
2781                 for (; it != end; ++it) {
2782                         it.getInset()->addPreview(loader);
2783                 }
2784
2785                 par = par->next();
2786         }
2787 }