2 * \file CutAndPaste.cpp
3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
7 * \author Lars Gullik Bjønnes
8 * \author Alfredo Braunstein
11 * Full author contact details are available in file CREDITS.
16 #include "CutAndPaste.h"
19 #include "buffer_funcs.h"
20 #include "BufferParams.h"
23 #include "ErrorList.h"
24 #include "FuncRequest.h"
26 #include "InsetIterator.h"
32 #include "TextClassList.h"
33 #include "Paragraph.h"
34 #include "paragraph_funcs.h"
35 #include "ParagraphParameters.h"
36 #include "ParIterator.h"
39 #include "insets/InsetCharStyle.h"
40 #include "insets/InsetTabular.h"
42 #include "mathed/MathData.h"
43 #include "mathed/InsetMath.h"
44 #include "mathed/MathSupport.h"
46 #include "support/lstrings.h"
48 #include "frontends/Clipboard.h"
49 #include "frontends/Selection.h"
51 #include <boost/current_function.hpp>
52 #include <boost/tuple/tuple.hpp>
66 using support::bformat;
67 using frontend::Clipboard;
71 typedef std::pair<pit_type, int> PitPosPair;
73 typedef limited_stack<pair<ParagraphList, textclass_type> > CutStack;
76 // persistent selection, cleared until the next selection
77 CutStack selectionBuffer(1);
79 // store whether the tabular stack is newer than the normal copy stack
80 // FIXME: this is a workaround for bug 1919. Should be removed for 1.5,
81 // when we (hopefully) have a one-for-all paste mechanism.
82 bool dirty_tabular_stack_ = false;
85 void region(CursorSlice const & i1, CursorSlice const & i2,
86 Inset::row_type & r1, Inset::row_type & r2,
87 Inset::col_type & c1, Inset::col_type & c2)
89 Inset & p = i1.inset();
101 bool checkPastePossible(int index)
103 return size_t(index) < theCuts.size() && !theCuts[index].first.empty();
107 pair<PitPosPair, pit_type>
108 pasteSelectionHelper(Cursor & cur, ParagraphList const & parlist,
109 textclass_type textclass, ErrorList & errorlist)
111 Buffer const & buffer = cur.buffer();
112 pit_type pit = cur.pit();
113 pos_type pos = cur.pos();
114 ParagraphList & pars = cur.text()->paragraphs();
117 return make_pair(PitPosPair(pit, pos), pit);
119 BOOST_ASSERT (pos <= pars[pit].size());
121 // Make a copy of the CaP paragraphs.
122 ParagraphList insertion = parlist;
123 textclass_type const tc = buffer.params().textclass;
125 // Now remove all out of the pars which is NOT allowed in the
126 // new environment and set also another font if that is required.
128 // Convert newline to paragraph break in ERT inset.
129 // This should not be here!
130 if (pars[pit].inInset() &&
131 (pars[pit].inInset()->lyxCode() == Inset::ERT_CODE ||
132 pars[pit].inInset()->lyxCode() == Inset::LISTINGS_CODE)) {
133 for (ParagraphList::size_type i = 0; i < insertion.size(); ++i) {
134 for (pos_type j = 0; j < insertion[i].size(); ++j) {
135 if (insertion[i].isNewline(j)) {
136 // do not track deletion of newline
137 insertion[i].eraseChar(j, false);
138 breakParagraphConservative(
146 // If we are in an inset which returns forceDefaultParagraphs,
147 // set the paragraphs to default
148 if (cur.inset().forceDefaultParagraphs(cur.idx())) {
149 Layout_ptr const layout =
150 buffer.params().getTextClass().defaultLayout();
151 ParagraphList::iterator const end = insertion.end();
152 for (ParagraphList::iterator par = insertion.begin();
157 // Make sure there is no class difference.
159 // This works without copying any paragraph data because we have
160 // a specialized swap method for ParagraphList. This is important
161 // since we store pointers to insets at some places and we don't
162 // want to invalidate them.
163 insertion.swap(in.paragraphs());
164 cap::switchBetweenClasses(textclass, tc, in, errorlist);
165 insertion.swap(in.paragraphs());
167 ParagraphList::iterator tmpbuf = insertion.begin();
168 int depth_delta = pars[pit].params().depth() - tmpbuf->params().depth();
170 depth_type max_depth = pars[pit].getMaxDepthAfter();
172 for (; tmpbuf != insertion.end(); ++tmpbuf) {
173 // If we have a negative jump so that the depth would
174 // go below 0 depth then we have to redo the delta to
175 // this new max depth level so that subsequent
176 // paragraphs are aligned correctly to this paragraph
178 if (int(tmpbuf->params().depth()) + depth_delta < 0)
181 // Set the right depth so that we are not too deep or shallow.
182 tmpbuf->params().depth(tmpbuf->params().depth() + depth_delta);
183 if (tmpbuf->params().depth() > max_depth)
184 tmpbuf->params().depth(max_depth);
186 // Only set this from the 2nd on as the 2nd depends
187 // for maxDepth still on pit.
188 if (tmpbuf != insertion.begin())
189 max_depth = tmpbuf->getMaxDepthAfter();
191 // Set the inset owner of this paragraph.
192 tmpbuf->setInsetOwner(pars[pit].inInset());
193 for (pos_type i = 0; i < tmpbuf->size(); ++i) {
194 if (tmpbuf->getChar(i) == Paragraph::META_INSET &&
195 !pars[pit].insetAllowed(tmpbuf->getInset(i)->lyxCode()))
196 // do not track deletion of invalid insets
197 tmpbuf->eraseChar(i--, false);
200 tmpbuf->setChange(Change(buffer.params().trackChanges ?
201 Change::INSERTED : Change::UNCHANGED));
204 bool const empty = pars[pit].empty();
206 // Make the buf exactly the same layout as the cursor
208 insertion.begin()->makeSameLayout(pars[pit]);
211 // Prepare the paragraphs and insets for insertion.
212 // A couple of insets store buffer references so need updating.
213 insertion.swap(in.paragraphs());
215 ParIterator fpit = par_iterator_begin(in);
216 ParIterator fend = par_iterator_end(in);
218 for (; fpit != fend; ++fpit) {
219 InsetList::const_iterator lit = fpit->insetlist.begin();
220 InsetList::const_iterator eit = fpit->insetlist.end();
222 for (; lit != eit; ++lit) {
223 switch (lit->inset->lyxCode()) {
224 case Inset::TABULAR_CODE: {
225 InsetTabular * it = static_cast<InsetTabular*>(lit->inset);
235 insertion.swap(in.paragraphs());
237 // Split the paragraph for inserting the buf if necessary.
239 breakParagraphConservative(buffer.params(), pars, pit, pos);
243 pars.insert(boost::next(pars.begin(), pit),
247 // merge the empty par with the last par of the insertion
248 mergeParagraph(buffer.params(), pars,
249 pit + insertion.size() - 1);
251 pars.insert(boost::next(pars.begin(), pit + 1),
255 // merge the first par of the insertion with the current par
256 mergeParagraph(buffer.params(), pars, pit);
259 pit_type last_paste = pit + insertion.size() - 1;
261 // Store the new cursor position.
263 pos = pars[last_paste].size();
265 // Join (conditionally) last pasted paragraph with next one, i.e.,
266 // the tail of the spliced document paragraph
267 if (!empty && last_paste + 1 != pit_type(pars.size())) {
268 if (pars[last_paste + 1].hasSameLayout(pars[last_paste])) {
269 mergeParagraph(buffer.params(), pars, last_paste);
270 } else if (pars[last_paste + 1].empty()) {
271 pars[last_paste + 1].makeSameLayout(pars[last_paste]);
272 mergeParagraph(buffer.params(), pars, last_paste);
273 } else if (pars[last_paste].empty()) {
274 pars[last_paste].makeSameLayout(pars[last_paste + 1]);
275 mergeParagraph(buffer.params(), pars, last_paste);
277 pars[last_paste + 1].stripLeadingSpaces(buffer.params().trackChanges);
282 return make_pair(PitPosPair(pit, pos), last_paste + 1);
286 PitPosPair eraseSelectionHelper(BufferParams const & params,
287 ParagraphList & pars,
288 pit_type startpit, pit_type endpit,
289 int startpos, int endpos, bool doclear)
291 // Start of selection is really invalid.
292 if (startpit == pit_type(pars.size()) ||
293 (startpos > pars[startpit].size()))
294 return PitPosPair(endpit, endpos);
296 // Start and end is inside same paragraph
297 if (endpit == pit_type(pars.size()) || startpit == endpit) {
298 endpos -= pars[startpit].eraseChars(startpos, endpos, params.trackChanges);
299 return PitPosPair(endpit, endpos);
302 for (pit_type pit = startpit; pit != endpit + 1;) {
303 pos_type const left = (pit == startpit ? startpos : 0);
304 pos_type right = (pit == endpit ? endpos : pars[pit].size() + 1);
305 // FIXME: this is a quick fix for bug 3600. It stops a crash but the problem
306 // still remains unsolved (e.g. the second example in the bug report).
307 // c.f. http://bugzilla.lyx.org/show_bug.cgi?id=3600
308 if (right > pars[pit].size() + 1)
309 right = pars[pit].size() + 1;
311 bool const merge = pars[pit].isMergedOnEndOfParDeletion(params.trackChanges);
313 // Logically erase only, including the end-of-paragraph character
314 pars[pit].eraseChars(left, right, params.trackChanges);
316 // Separate handling of paragraph break:
317 if (merge && pit != endpit &&
318 (pit + 1 != endpit || pars[pit].hasSameLayout(pars[pit + 1]))) {
319 pos_type const thissize = pars[pit].size();
321 pars[pit + 1].stripLeadingSpaces(params.trackChanges);
322 mergeParagraph(params, pars, pit);
330 // Ensure legal cursor pos:
333 return PitPosPair(endpit, endpos);
337 void putClipboard(ParagraphList const & paragraphs, textclass_type textclass,
338 docstring const & plaintext)
340 // For some strange reason gcc 3.2 and 3.3 do not accept
341 // Buffer buffer(string(), false);
342 Buffer buffer("", false);
343 buffer.setUnnamed(true);
344 buffer.paragraphs() = paragraphs;
345 buffer.params().textclass = textclass;
346 std::ostringstream lyx;
347 if (buffer.write(lyx))
348 theClipboard().put(lyx.str(), plaintext);
350 theClipboard().put(string(), plaintext);
354 void copySelectionHelper(Buffer const & buf, ParagraphList & pars,
355 pit_type startpit, pit_type endpit,
356 int start, int end, textclass_type tc, CutStack & cutstack)
358 BOOST_ASSERT(0 <= start && start <= pars[startpit].size());
359 BOOST_ASSERT(0 <= end && end <= pars[endpit].size());
360 BOOST_ASSERT(startpit != endpit || start <= end);
362 // Clone the paragraphs within the selection.
363 ParagraphList copy_pars(boost::next(pars.begin(), startpit),
364 boost::next(pars.begin(), endpit + 1));
366 // Remove the end of the last paragraph; afterwards, remove the
367 // beginning of the first paragraph. Keep this order - there may only
368 // be one paragraph! Do not track deletions here; this is an internal
369 // action not visible to the user
371 Paragraph & back = copy_pars.back();
372 back.eraseChars(end, back.size(), false);
373 Paragraph & front = copy_pars.front();
374 front.eraseChars(0, start, false);
376 ParagraphList::iterator it = copy_pars.begin();
377 ParagraphList::iterator it_end = copy_pars.end();
379 for (; it != it_end; it++) {
380 // ERT paragraphs have the Language latex_language.
381 // This is invalid outside of ERT, so we need to change it
382 // to the buffer language.
383 if (it->ownerCode() == Inset::ERT_CODE || it->ownerCode() == Inset::LISTINGS_CODE) {
384 it->changeLanguage(buf.params(), latex_language,
387 it->setInsetOwner(0);
390 // do not copy text (also nested in insets) which is marked as deleted
391 // acceptChanges() is defined for Text rather than ParagraphList
392 // Thus we must wrap copy_pars into a Text object and cross our fingers
394 copy_pars.swap(lt.paragraphs());
395 lt.acceptChanges(buf.params());
396 copy_pars.swap(lt.paragraphs());
398 cutstack.push(make_pair(copy_pars, tc));
408 docstring grabAndEraseSelection(Cursor & cur)
410 if (!cur.selection())
412 docstring res = grabSelection(cur);
418 void switchBetweenClasses(textclass_type c1, textclass_type c2,
419 InsetText & in, ErrorList & errorlist)
421 BOOST_ASSERT(!in.paragraphs().empty());
425 TextClass const & tclass1 = textclasslist[c1];
426 TextClass const & tclass2 = textclasslist[c2];
429 ParIterator end = par_iterator_end(in);
430 for (ParIterator it = par_iterator_begin(in); it != end; ++it) {
431 string const name = it->layout()->name();
432 bool hasLayout = tclass2.hasLayout(name);
435 it->layout(tclass2[name]);
437 it->layout(tclass2.defaultLayout());
439 if (!hasLayout && name != tclass1.defaultLayoutName()) {
440 docstring const s = bformat(
441 _("Layout had to be changed from\n%1$s to %2$s\n"
442 "because of class conversion from\n%3$s to %4$s"),
443 from_utf8(name), from_utf8(it->layout()->name()),
444 from_utf8(tclass1.name()), from_utf8(tclass2.name()));
445 // To warn the user that something had to be done.
446 errorlist.push_back(ErrorItem(_("Changed Layout"), s,
453 InsetIterator const i_end = inset_iterator_end(in);
454 for (InsetIterator it = inset_iterator_begin(in); it != i_end; ++it) {
455 if (it->lyxCode() == Inset::CHARSTYLE_CODE) {
456 InsetCharStyle & inset =
457 static_cast<InsetCharStyle &>(*it);
458 string const name = inset.params().type;
459 CharStyles::iterator const found_cs =
460 tclass2.charstyle(name);
461 if (found_cs == tclass2.charstyles().end()) {
462 // The character style is undefined in tclass2
463 inset.setUndefined();
464 docstring const s = bformat(_(
465 "Character style %1$s is "
466 "undefined because of class "
467 "conversion from\n%2$s to %3$s"),
468 from_utf8(name), from_utf8(tclass1.name()),
469 from_utf8(tclass2.name()));
470 // To warn the user that something had to be done.
471 errorlist.push_back(ErrorItem(
472 _("Undefined character style"),
473 s, it.paragraph().id(), it.pos(), it.pos() + 1));
474 } else if (inset.undefined()) {
475 // The character style is undefined in
476 // tclass1 and is defined in tclass2
477 inset.setDefined(found_cs);
484 std::vector<docstring> const availableSelections(Buffer const & buffer)
486 vector<docstring> selList;
488 CutStack::const_iterator cit = theCuts.begin();
489 CutStack::const_iterator end = theCuts.end();
490 for (; cit != end; ++cit) {
491 // we do not use cit-> here because gcc 2.9x does not
493 ParagraphList const & pars = (*cit).first;
495 ParagraphList::const_iterator pit = pars.begin();
496 ParagraphList::const_iterator pend = pars.end();
497 for (; pit != pend; ++pit) {
498 asciiSel += pit->asString(buffer, false);
499 if (asciiSel.size() > 25) {
500 asciiSel.replace(22, docstring::npos,
506 selList.push_back(asciiSel);
513 size_type numberOfSelections()
515 return theCuts.size();
519 void cutSelection(Cursor & cur, bool doclear, bool realcut)
521 // This doesn't make sense, if there is no selection
522 if (!cur.selection())
525 // OK, we have a selection. This is always between cur.selBegin()
528 if (cur.inTexted()) {
529 Text * text = cur.text();
532 // make sure that the depth behind the selection are restored, too
533 recordUndoSelection(cur);
534 pit_type begpit = cur.selBegin().pit();
535 pit_type endpit = cur.selEnd().pit();
537 int endpos = cur.selEnd().pos();
539 BufferParams const & bp = cur.buffer().params();
541 copySelectionHelper(cur.buffer(),
544 cur.selBegin().pos(), endpos,
545 bp.textclass, theCuts);
546 // Stuff what we got on the clipboard.
547 // Even if there is no selection.
548 putClipboard(theCuts[0].first, theCuts[0].second,
549 cur.selectionAsString(true));
552 boost::tie(endpit, endpos) =
553 eraseSelectionHelper(bp,
556 cur.selBegin().pos(), endpos,
559 // cutSelection can invalidate the cursor so we need to set
561 // we prefer the end for when tracking changes
565 // sometimes necessary
567 && text->paragraphs()[begpit].stripLeadingSpaces(bp.trackChanges))
570 // need a valid cursor. (Lgb)
571 cur.clearSelection();
572 updateLabels(cur.buffer());
573 theSelection().haveSelection(false);
575 // tell tabular that a recent copy happened
576 dirtyTabularStack(false);
579 if (cur.inMathed()) {
580 if (cur.selBegin().idx() != cur.selEnd().idx()) {
581 // The current selection spans more than one cell.
583 recordUndoInset(cur);
585 // Record only the current cell to avoid a jumping
596 void copySelection(Cursor & cur)
598 copySelection(cur, cur.selectionAsString(true));
604 void copySelectionToStack(Cursor & cur, CutStack & cutstack)
606 // this doesn't make sense, if there is no selection
607 if (!cur.selection())
610 // copySelection can not yet handle the case of cross idx selection
611 if (cur.selBegin().idx() != cur.selEnd().idx())
614 if (cur.inTexted()) {
615 Text * text = cur.text();
617 // ok we have a selection. This is always between cur.selBegin()
618 // and sel_end cursor
620 // copy behind a space if there is one
621 ParagraphList & pars = text->paragraphs();
622 pos_type pos = cur.selBegin().pos();
623 pit_type par = cur.selBegin().pit();
624 while (pos < pars[par].size() &&
625 pars[par].isLineSeparator(pos) &&
626 (par != cur.selEnd().pit() || pos < cur.selEnd().pos()))
629 copySelectionHelper(cur.buffer(), pars, par, cur.selEnd().pit(),
630 pos, cur.selEnd().pos(), cur.buffer().params().textclass, cutstack);
633 if (cur.inMathed()) {
634 //lyxerr << "copySelection in mathed" << endl;
637 BufferParams const & bp = cur.buffer().params();
638 par.layout(bp.getTextClass().defaultLayout());
639 par.insert(0, grabSelection(cur), Font(), Change(Change::UNCHANGED));
641 cutstack.push(make_pair(pars, bp.textclass));
648 void copySelectionToStack()
650 if (!selectionBuffer.empty())
651 theCuts.push(selectionBuffer[0]);
655 void copySelection(Cursor & cur, docstring const & plaintext)
657 // In tablemode, because copy and paste actually use special table stack
658 // we do not attemp to get selected paragraphs under cursor. Instead, a
659 // paragraph with the plain text version is generated so that table cells
660 // can be pasted as pure text somewhere else.
661 if (cur.selBegin().idx() != cur.selEnd().idx()) {
664 BufferParams const & bp = cur.buffer().params();
665 par.layout(bp.getTextClass().defaultLayout());
666 par.insert(0, plaintext, Font(), Change(Change::UNCHANGED));
668 theCuts.push(make_pair(pars, bp.textclass));
670 copySelectionToStack(cur, theCuts);
672 // stuff the selection onto the X clipboard, from an explicit copy request
673 putClipboard(theCuts[0].first, theCuts[0].second, plaintext);
677 void saveSelection(Cursor & cur)
679 LYXERR(Debug::ACTION) << BOOST_CURRENT_FUNCTION << ": `"
680 << to_utf8(cur.selectionAsString(true)) << "'."
684 copySelectionToStack(cur, selectionBuffer);
685 // tell X whether we now have a valid selection
686 theSelection().haveSelection(cur.selection());
692 return !selectionBuffer.empty();
696 void clearSelection()
698 selectionBuffer.clear();
702 docstring getSelection(Buffer const & buf, size_t sel_index)
704 return sel_index < theCuts.size()
705 ? theCuts[sel_index].first.back().asString(buf, false)
710 void pasteParagraphList(Cursor & cur, ParagraphList const & parlist,
711 textclass_type textclass, ErrorList & errorList)
713 if (cur.inTexted()) {
714 Text * text = cur.text();
720 boost::tie(ppp, endpit) =
721 pasteSelectionHelper(cur, parlist,
722 textclass, errorList);
723 updateLabels(cur.buffer());
724 cur.clearSelection();
725 text->setCursor(cur.top(), ppp.first, ppp.second);
728 // mathed is handled in InsetMathNest/InsetMathGrid
729 BOOST_ASSERT(!cur.inMathed());
733 void pasteFromStack(Cursor & cur, ErrorList & errorList, size_t sel_index)
735 // this does not make sense, if there is nothing to paste
736 if (!checkPastePossible(sel_index))
740 pasteParagraphList(cur, theCuts[sel_index].first,
741 theCuts[sel_index].second, errorList);
747 void pasteClipboard(Cursor & cur, ErrorList & errorList, bool asParagraphs)
749 // Use internal clipboard if it is the most recent one
750 if (theClipboard().isInternal()) {
751 pasteFromStack(cur, errorList, 0);
755 // First try LyX format
756 if (theClipboard().hasLyXContents()) {
757 string lyx = theClipboard().getAsLyX();
759 // For some strange reason gcc 3.2 and 3.3 do not accept
760 // Buffer buffer(string(), false);
761 Buffer buffer("", false);
762 buffer.setUnnamed(true);
763 if (buffer.readString(lyx)) {
765 pasteParagraphList(cur, buffer.paragraphs(),
766 buffer.params().textclass, errorList);
773 // Then try plain text
774 docstring const text = theClipboard().getAsText();
779 cur.text()->insertStringAsParagraphs(cur, text);
781 cur.text()->insertStringAsLines(cur, text);
785 void pasteSelection(Cursor & cur, ErrorList & errorList)
787 if (selectionBuffer.empty())
790 pasteParagraphList(cur, selectionBuffer[0].first,
791 selectionBuffer[0].second, errorList);
796 void replaceSelectionWithString(Cursor & cur, docstring const & str, bool backwards)
799 DocIterator selbeg = cur.selectionBegin();
801 // Get font setting before we cut
803 selbeg.paragraph().getFontSettings(cur.buffer().params(), selbeg.pos());
805 // Insert the new string
806 pos_type pos = cur.selEnd().pos();
807 Paragraph & par = cur.selEnd().paragraph();
808 docstring::const_iterator cit = str.begin();
809 docstring::const_iterator end = str.end();
810 for (; cit != end; ++cit, ++pos)
811 par.insertChar(pos, *cit, font, cur.buffer().params().trackChanges);
814 cutSelection(cur, true, false);
816 // select the replacement
818 selbeg.pos() += str.length();
819 cur.setSelection(selbeg, -int(str.length()));
821 cur.setSelection(selbeg, str.length());
826 void replaceSelection(Cursor & cur)
829 cutSelection(cur, true, false);
833 void eraseSelection(Cursor & cur)
835 //lyxerr << "cap::eraseSelection begin: " << cur << endl;
836 CursorSlice const & i1 = cur.selBegin();
837 CursorSlice const & i2 = cur.selEnd();
838 if (i1.inset().asInsetMath()) {
840 if (i1.idx() == i2.idx()) {
841 i1.cell().erase(i1.pos(), i2.pos());
842 // We may have deleted i1.cell(cur.pos()).
843 // Make sure that pos is valid.
844 if (cur.pos() > cur.lastpos())
845 cur.pos() = cur.lastpos();
847 InsetMath * p = i1.asInsetMath();
848 Inset::row_type r1, r2;
849 Inset::col_type c1, c2;
850 region(i1, i2, r1, r2, c1, c2);
851 for (Inset::row_type row = r1; row <= r2; ++row)
852 for (Inset::col_type col = c1; col <= c2; ++col)
853 p->cell(p->index(row, col)).clear();
854 // We've deleted the whole cell. Only pos 0 is valid.
857 // need a valid cursor. (Lgb)
858 cur.clearSelection();
859 theSelection().haveSelection(false);
861 lyxerr << "can't erase this selection 1" << endl;
863 //lyxerr << "cap::eraseSelection end: " << cur << endl;
867 void selDel(Cursor & cur)
869 //lyxerr << "cap::selDel" << endl;
875 void selClearOrDel(Cursor & cur)
877 //lyxerr << "cap::selClearOrDel" << endl;
878 if (lyxrc.auto_region_delete)
881 cur.selection() = false;
885 docstring grabSelection(Cursor const & cur)
887 if (!cur.selection())
890 // FIXME: What is wrong with the following?
892 std::ostringstream os;
893 for (DocIterator dit = cur.selectionBegin();
894 dit != cur.selectionEnd(); dit.forwardPos())
895 os << asString(dit.cell());
899 CursorSlice i1 = cur.selBegin();
900 CursorSlice i2 = cur.selEnd();
902 if (i1.idx() == i2.idx()) {
903 if (i1.inset().asInsetMath()) {
904 MathData::const_iterator it = i1.cell().begin();
905 return asString(MathData(it + i1.pos(), it + i2.pos()));
907 return from_ascii("unknown selection 1");
911 Inset::row_type r1, r2;
912 Inset::col_type c1, c2;
913 region(i1, i2, r1, r2, c1, c2);
916 if (i1.inset().asInsetMath()) {
917 for (Inset::row_type row = r1; row <= r2; ++row) {
920 for (Inset::col_type col = c1; col <= c2; ++col) {
923 data += asString(i1.asInsetMath()->
924 cell(i1.asInsetMath()->index(row, col)));
928 data = from_ascii("unknown selection 2");
934 void dirtyTabularStack(bool b)
936 dirty_tabular_stack_ = b;
940 bool tabularStackDirty()
942 return dirty_tabular_stack_;