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"
21 #include "BufferView.h"
24 #include "ErrorList.h"
25 #include "FuncRequest.h"
26 #include "InsetIterator.h"
27 #include "InsetList.h"
33 #include "Paragraph.h"
34 #include "paragraph_funcs.h"
35 #include "ParagraphParameters.h"
36 #include "ParIterator.h"
39 #include "insets/InsetFlex.h"
40 #include "insets/InsetCommand.h"
41 #include "insets/InsetGraphics.h"
42 #include "insets/InsetGraphicsParams.h"
43 #include "insets/InsetTabular.h"
45 #include "mathed/MathData.h"
46 #include "mathed/InsetMath.h"
47 #include "mathed/MathSupport.h"
49 #include "support/debug.h"
50 #include "support/docstream.h"
51 #include "support/gettext.h"
52 #include "support/limited_stack.h"
53 #include "support/lstrings.h"
55 #include "frontends/Clipboard.h"
56 #include "frontends/Selection.h"
58 #include <boost/tuple/tuple.hpp>
59 #include <boost/next_prior.hpp>
64 using namespace lyx::support;
65 using lyx::frontend::Clipboard;
71 typedef pair<pit_type, int> PitPosPair;
73 typedef limited_stack<pair<ParagraphList, DocumentClass const *> > 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 DocumentClass const * const docclass, 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 DocumentClass const * const tc = buffer.params().documentClassPtr();
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 Inset * inset = pars[pit].inInset();
131 if (inset && (inset->lyxCode() == ERT_CODE ||
132 inset->lyxCode() == LISTINGS_CODE)) {
133 for (size_t 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 // set the paragraphs to empty layout if necessary
147 // note that we are doing this if the empty layout is
148 // supposed to be the default, not just if it is forced
149 if (cur.inset().useEmptyLayout()) {
150 Layout const & layout =
151 buffer.params().documentClass().emptyLayout();
152 ParagraphList::iterator const end = insertion.end();
153 for (ParagraphList::iterator par = insertion.begin();
155 par->setLayout(layout);
158 // Make sure there is no class difference.
160 // This works without copying any paragraph data because we have
161 // a specialized swap method for ParagraphList. This is important
162 // since we store pointers to insets at some places and we don't
163 // want to invalidate them.
164 insertion.swap(in.paragraphs());
165 cap::switchBetweenClasses(docclass, tc, in, errorlist);
166 insertion.swap(in.paragraphs());
168 ParagraphList::iterator tmpbuf = insertion.begin();
169 int depth_delta = pars[pit].params().depth() - tmpbuf->params().depth();
171 depth_type max_depth = pars[pit].getMaxDepthAfter();
173 for (; tmpbuf != insertion.end(); ++tmpbuf) {
174 // If we have a negative jump so that the depth would
175 // go below 0 depth then we have to redo the delta to
176 // this new max depth level so that subsequent
177 // paragraphs are aligned correctly to this paragraph
179 if (int(tmpbuf->params().depth()) + depth_delta < 0)
182 // Set the right depth so that we are not too deep or shallow.
183 tmpbuf->params().depth(tmpbuf->params().depth() + depth_delta);
184 if (tmpbuf->params().depth() > max_depth)
185 tmpbuf->params().depth(max_depth);
187 // Only set this from the 2nd on as the 2nd depends
188 // for maxDepth still on pit.
189 if (tmpbuf != insertion.begin())
190 max_depth = tmpbuf->getMaxDepthAfter();
192 // Set the inset owner of this paragraph.
193 tmpbuf->setInsetOwner(pars[pit].inInset());
194 for (pos_type i = 0; i < tmpbuf->size(); ++i) {
195 // do not track deletion of invalid insets
196 if (Inset * inset = tmpbuf->getInset(i))
197 if (!pars[pit].insetAllowed(inset->lyxCode()))
198 tmpbuf->eraseChar(i--, false);
201 tmpbuf->setChange(Change(buffer.params().trackChanges ?
202 Change::INSERTED : Change::UNCHANGED));
205 bool const empty = pars[pit].empty();
207 // Make the buf exactly the same layout as the cursor
209 insertion.begin()->makeSameLayout(pars[pit]);
212 // Prepare the paragraphs and insets for insertion.
213 // A couple of insets store buffer references so need updating.
214 insertion.swap(in.paragraphs());
216 InsetIterator const i_end = inset_iterator_end(in);
218 for (InsetIterator it = inset_iterator_begin(in); it != i_end; ++it) {
220 it->setBuffer(const_cast<Buffer &>(buffer));
222 switch (it->lyxCode()) {
225 // check for duplicates
226 InsetCommand & lab = static_cast<InsetCommand &>(*it);
227 docstring const oldname = lab.getParam("name");
228 lab.updateCommand(oldname, false);
229 docstring const newname = lab.getParam("name");
230 if (oldname != newname) {
231 // adapt the references
232 for (InsetIterator itt = inset_iterator_begin(in); itt != i_end; ++itt) {
233 if (itt->lyxCode() == REF_CODE) {
234 InsetCommand & ref = dynamic_cast<InsetCommand &>(*itt);
235 if (ref.getParam("reference") == oldname)
236 ref.setParam("reference", newname);
244 // check for duplicates
245 InsetCommand & bib = static_cast<InsetCommand &>(*it);
246 docstring const oldkey = bib.getParam("key");
247 bib.updateCommand(oldkey, false);
248 docstring const newkey = bib.getParam("key");
249 if (oldkey != newkey) {
250 // adapt the references
251 for (InsetIterator itt = inset_iterator_begin(in); itt != i_end; ++itt) {
252 if (itt->lyxCode() == CITE_CODE) {
253 InsetCommand & ref = dynamic_cast<InsetCommand &>(*itt);
254 if (ref.getParam("key") == oldkey)
255 ref.setParam("key", newkey);
266 insertion.swap(in.paragraphs());
268 // Split the paragraph for inserting the buf if necessary.
270 breakParagraphConservative(buffer.params(), pars, pit, pos);
274 pars.insert(boost::next(pars.begin(), pit),
278 // merge the empty par with the last par of the insertion
279 mergeParagraph(buffer.params(), pars,
280 pit + insertion.size() - 1);
282 pars.insert(boost::next(pars.begin(), pit + 1),
286 // merge the first par of the insertion with the current par
287 mergeParagraph(buffer.params(), pars, pit);
290 pit_type last_paste = pit + insertion.size() - 1;
292 // Store the new cursor position.
294 pos = pars[last_paste].size();
296 // Join (conditionally) last pasted paragraph with next one, i.e.,
297 // the tail of the spliced document paragraph
298 if (!empty && last_paste + 1 != pit_type(pars.size())) {
299 if (pars[last_paste + 1].hasSameLayout(pars[last_paste])) {
300 mergeParagraph(buffer.params(), pars, last_paste);
301 } else if (pars[last_paste + 1].empty()) {
302 pars[last_paste + 1].makeSameLayout(pars[last_paste]);
303 mergeParagraph(buffer.params(), pars, last_paste);
304 } else if (pars[last_paste].empty()) {
305 pars[last_paste].makeSameLayout(pars[last_paste + 1]);
306 mergeParagraph(buffer.params(), pars, last_paste);
308 pars[last_paste + 1].stripLeadingSpaces(buffer.params().trackChanges);
313 return make_pair(PitPosPair(pit, pos), last_paste + 1);
317 PitPosPair eraseSelectionHelper(BufferParams const & params,
318 ParagraphList & pars,
319 pit_type startpit, pit_type endpit,
320 int startpos, int endpos)
322 // Start of selection is really invalid.
323 if (startpit == pit_type(pars.size()) ||
324 (startpos > pars[startpit].size()))
325 return PitPosPair(endpit, endpos);
327 // Start and end is inside same paragraph
328 if (endpit == pit_type(pars.size()) || startpit == endpit) {
329 endpos -= pars[startpit].eraseChars(startpos, endpos, params.trackChanges);
330 return PitPosPair(endpit, endpos);
333 for (pit_type pit = startpit; pit != endpit + 1;) {
334 pos_type const left = (pit == startpit ? startpos : 0);
335 pos_type right = (pit == endpit ? endpos : pars[pit].size() + 1);
336 bool const merge = pars[pit].isMergedOnEndOfParDeletion(params.trackChanges);
338 // Logically erase only, including the end-of-paragraph character
339 pars[pit].eraseChars(left, right, params.trackChanges);
341 // Separate handling of paragraph break:
342 if (merge && pit != endpit &&
344 || pars[pit].hasSameLayout(pars[endpit])
345 || pars[endpit].size() == endpos)) {
346 if (pit + 1 == endpit)
347 endpos += pars[pit].size();
348 mergeParagraph(params, pars, pit);
354 // Ensure legal cursor pos:
357 return PitPosPair(endpit, endpos);
361 void putClipboard(ParagraphList const & paragraphs,
362 DocumentClass const * const docclass, docstring const & plaintext)
364 // For some strange reason gcc 3.2 and 3.3 do not accept
365 // Buffer buffer(string(), false);
366 Buffer buffer("", false);
367 buffer.setUnnamed(true);
368 buffer.paragraphs() = paragraphs;
369 buffer.params().setDocumentClass(docclass);
371 if (buffer.write(lyx))
372 theClipboard().put(lyx.str(), plaintext);
374 theClipboard().put(string(), plaintext);
378 void copySelectionHelper(Buffer const & buf, ParagraphList & pars,
379 pit_type startpit, pit_type endpit,
380 int start, int end, DocumentClass const * const dc, CutStack & cutstack)
382 BOOST_ASSERT(0 <= start && start <= pars[startpit].size());
383 BOOST_ASSERT(0 <= end && end <= pars[endpit].size());
384 BOOST_ASSERT(startpit != endpit || start <= end);
386 // Clone the paragraphs within the selection.
387 ParagraphList copy_pars(boost::next(pars.begin(), startpit),
388 boost::next(pars.begin(), endpit + 1));
390 // Remove the end of the last paragraph; afterwards, remove the
391 // beginning of the first paragraph. Keep this order - there may only
392 // be one paragraph! Do not track deletions here; this is an internal
393 // action not visible to the user
395 Paragraph & back = copy_pars.back();
396 back.eraseChars(end, back.size(), false);
397 Paragraph & front = copy_pars.front();
398 front.eraseChars(0, start, false);
400 ParagraphList::iterator it = copy_pars.begin();
401 ParagraphList::iterator it_end = copy_pars.end();
403 for (; it != it_end; it++) {
404 // ERT paragraphs have the Language latex_language.
405 // This is invalid outside of ERT, so we need to change it
406 // to the buffer language.
407 if (it->ownerCode() == ERT_CODE || it->ownerCode() == LISTINGS_CODE) {
408 it->changeLanguage(buf.params(), latex_language, buf.language());
410 it->setInsetOwner(0);
413 // do not copy text (also nested in insets) which is marked as deleted
414 acceptChanges(copy_pars, buf.params());
416 DocumentClass * d = const_cast<DocumentClass *>(dc);
417 cutstack.push(make_pair(copy_pars, d));
427 docstring grabAndEraseSelection(Cursor & cur)
429 if (!cur.selection())
431 docstring res = grabSelection(cur);
437 bool reduceSelectionToOneCell(Cursor & cur)
439 if (!cur.selection() || !cur.inMathed())
442 CursorSlice i1 = cur.selBegin();
443 CursorSlice i2 = cur.selEnd();
444 if (!i1.inset().asInsetMath())
447 // the easy case: do nothing if only one cell is selected
448 if (i1.idx() == i2.idx())
453 cur.top().pos() = cur.top().lastpos();
459 void switchBetweenClasses(DocumentClass const * const oldone,
460 DocumentClass const * const newone, InsetText & in, ErrorList & errorlist)
464 BOOST_ASSERT(!in.paragraphs().empty());
465 if (oldone == newone)
468 DocumentClass const & oldtc = *oldone;
469 DocumentClass const & newtc = *newone;
472 ParIterator end = par_iterator_end(in);
473 for (ParIterator it = par_iterator_begin(in); it != end; ++it) {
474 docstring const name = it->layout().name();
475 bool hasLayout = newtc.hasLayout(name);
477 if (in.useEmptyLayout())
478 it->setLayout(newtc.emptyLayout());
480 it->setLayout(newtc[name]);
482 it->setLayout(newtc.defaultLayout());
484 if (!hasLayout && name != oldtc.defaultLayoutName()) {
485 docstring const s = bformat(
486 _("Layout had to be changed from\n%1$s to %2$s\n"
487 "because of class conversion from\n%3$s to %4$s"),
488 name, it->layout().name(),
489 from_utf8(oldtc.name()), from_utf8(newtc.name()));
490 // To warn the user that something had to be done.
491 errorlist.push_back(ErrorItem(_("Changed Layout"), s,
498 InsetIterator const i_end = inset_iterator_end(in);
499 for (InsetIterator it = inset_iterator_begin(in); it != i_end; ++it) {
500 InsetCollapsable * inset = it->asInsetCollapsable();
503 if (inset->lyxCode() != FLEX_CODE)
504 // FIXME: Should we verify all InsetCollapsable?
506 inset->setLayout(newone);
507 if (!inset->undefined())
509 // The flex inset is undefined in newtc
510 docstring const s = bformat(_(
511 "Flex inset %1$s is "
512 "undefined because of class "
513 "conversion from\n%2$s to %3$s"),
514 inset->name(), from_utf8(oldtc.name()),
515 from_utf8(newtc.name()));
516 // To warn the user that something had to be done.
517 errorlist.push_back(ErrorItem(
518 _("Undefined flex inset"),
519 s, it.paragraph().id(), it.pos(), it.pos() + 1));
524 vector<docstring> availableSelections()
526 vector<docstring> selList;
528 CutStack::const_iterator cit = theCuts.begin();
529 CutStack::const_iterator end = theCuts.end();
530 for (; cit != end; ++cit) {
531 // we do not use cit-> here because gcc 2.9x does not
533 ParagraphList const & pars = (*cit).first;
535 ParagraphList::const_iterator pit = pars.begin();
536 ParagraphList::const_iterator pend = pars.end();
537 for (; pit != pend; ++pit) {
538 asciiSel += pit->asString(false);
539 if (asciiSel.size() > 25) {
540 asciiSel.replace(22, docstring::npos,
546 selList.push_back(asciiSel);
553 size_type numberOfSelections()
555 return theCuts.size();
559 void cutSelection(Cursor & cur, bool doclear, bool realcut)
561 // This doesn't make sense, if there is no selection
562 if (!cur.selection())
565 // OK, we have a selection. This is always between cur.selBegin()
568 if (cur.inTexted()) {
569 Text * text = cur.text();
574 // make sure that the depth behind the selection are restored, too
575 cur.recordUndoSelection();
576 pit_type begpit = cur.selBegin().pit();
577 pit_type endpit = cur.selEnd().pit();
579 int endpos = cur.selEnd().pos();
581 BufferParams const & bp = cur.buffer().params();
583 copySelectionHelper(cur.buffer(),
586 cur.selBegin().pos(), endpos,
587 bp.documentClassPtr(), theCuts);
588 // Stuff what we got on the clipboard.
589 // Even if there is no selection.
590 putClipboard(theCuts[0].first, theCuts[0].second,
591 cur.selectionAsString(true));
594 boost::tie(endpit, endpos) =
595 eraseSelectionHelper(bp,
598 cur.selBegin().pos(), endpos);
600 // cutSelection can invalidate the cursor so we need to set
602 // we prefer the end for when tracking changes
606 // sometimes necessary
608 && text->paragraphs()[begpit].stripLeadingSpaces(bp.trackChanges))
611 // need a valid cursor. (Lgb)
612 cur.clearSelection();
613 updateLabels(cur.buffer());
615 // tell tabular that a recent copy happened
616 dirtyTabularStack(false);
619 if (cur.inMathed()) {
620 if (cur.selBegin().idx() != cur.selEnd().idx()) {
621 // The current selection spans more than one cell.
623 cur.recordUndoInset();
625 // Record only the current cell to avoid a jumping
636 void copySelection(Cursor & cur)
638 copySelection(cur, cur.selectionAsString(true));
644 void copySelectionToStack(Cursor & cur, CutStack & cutstack)
646 // this doesn't make sense, if there is no selection
647 if (!cur.selection())
650 // copySelection can not yet handle the case of cross idx selection
651 if (cur.selBegin().idx() != cur.selEnd().idx())
654 if (cur.inTexted()) {
655 Text * text = cur.text();
657 // ok we have a selection. This is always between cur.selBegin()
658 // and sel_end cursor
660 // copy behind a space if there is one
661 ParagraphList & pars = text->paragraphs();
662 pos_type pos = cur.selBegin().pos();
663 pit_type par = cur.selBegin().pit();
664 while (pos < pars[par].size() &&
665 pars[par].isLineSeparator(pos) &&
666 (par != cur.selEnd().pit() || pos < cur.selEnd().pos()))
669 copySelectionHelper(cur.buffer(), pars, par, cur.selEnd().pit(),
670 pos, cur.selEnd().pos(),
671 cur.buffer().params().documentClassPtr(), cutstack);
672 dirtyTabularStack(false);
675 if (cur.inMathed()) {
676 //lyxerr << "copySelection in mathed" << endl;
679 BufferParams const & bp = cur.buffer().params();
680 // FIXME This should be the empty layout...right?
681 par.setLayout(bp.documentClass().emptyLayout());
682 par.insert(0, grabSelection(cur), Font(), Change(Change::UNCHANGED));
684 cutstack.push(make_pair(pars, bp.documentClassPtr()));
691 void copySelectionToStack()
693 if (!selectionBuffer.empty())
694 theCuts.push(selectionBuffer[0]);
698 void copySelection(Cursor & cur, docstring const & plaintext)
700 // In tablemode, because copy and paste actually use special table stack
701 // we do not attempt to get selected paragraphs under cursor. Instead, a
702 // paragraph with the plain text version is generated so that table cells
703 // can be pasted as pure text somewhere else.
704 if (cur.selBegin().idx() != cur.selEnd().idx()) {
707 BufferParams const & bp = cur.buffer().params();
708 par.setLayout(bp.documentClass().emptyLayout());
709 par.insert(0, plaintext, Font(), Change(Change::UNCHANGED));
711 theCuts.push(make_pair(pars, bp.documentClassPtr()));
713 copySelectionToStack(cur, theCuts);
716 // stuff the selection onto the X clipboard, from an explicit copy request
717 putClipboard(theCuts[0].first, theCuts[0].second, plaintext);
721 void saveSelection(Cursor & cur)
723 // This function is called, not when a selection is formed, but when
724 // a selection is cleared. Therefore, multiple keyboard selection
725 // will not repeatively trigger this function (bug 3877).
727 && cur.selBegin() == cur.bv().cursor().selBegin()
728 && cur.selEnd() == cur.bv().cursor().selEnd()) {
729 LYXERR(Debug::ACTION, "'" << cur.selectionAsString(true) << "'");
730 copySelectionToStack(cur, selectionBuffer);
737 return !selectionBuffer.empty();
741 void clearSelection()
743 selectionBuffer.clear();
753 docstring selection(size_t sel_index)
755 return sel_index < theCuts.size()
756 ? theCuts[sel_index].first.back().asString(false)
761 void pasteParagraphList(Cursor & cur, ParagraphList const & parlist,
762 DocumentClass const * const docclass, ErrorList & errorList)
764 if (cur.inTexted()) {
765 Text * text = cur.text();
771 boost::tie(ppp, endpit) =
772 pasteSelectionHelper(cur, parlist, docclass, errorList);
773 updateLabels(cur.buffer());
774 cur.clearSelection();
775 text->setCursor(cur, ppp.first, ppp.second);
778 // mathed is handled in InsetMathNest/InsetMathGrid
779 BOOST_ASSERT(!cur.inMathed());
783 void pasteFromStack(Cursor & cur, ErrorList & errorList, size_t sel_index)
785 // this does not make sense, if there is nothing to paste
786 if (!checkPastePossible(sel_index))
790 pasteParagraphList(cur, theCuts[sel_index].first,
791 theCuts[sel_index].second, errorList);
796 void pasteClipboardText(Cursor & cur, ErrorList & errorList, bool asParagraphs)
798 // Use internal clipboard if it is the most recent one
799 if (theClipboard().isInternal()) {
800 pasteFromStack(cur, errorList, 0);
804 // First try LyX format
805 if (theClipboard().hasLyXContents()) {
806 string lyx = theClipboard().getAsLyX();
808 // For some strange reason gcc 3.2 and 3.3 do not accept
809 // Buffer buffer(string(), false);
810 Buffer buffer("", false);
811 buffer.setUnnamed(true);
812 if (buffer.readString(lyx)) {
814 pasteParagraphList(cur, buffer.paragraphs(),
815 buffer.params().documentClassPtr(), errorList);
822 // Then try plain text
823 docstring const text = theClipboard().getAsText();
828 cur.text()->insertStringAsParagraphs(cur, text);
830 cur.text()->insertStringAsLines(cur, text);
834 void pasteClipboardGraphics(Cursor & cur, ErrorList & /* errorList */,
835 Clipboard::GraphicsType preferedType)
837 BOOST_ASSERT(theClipboard().hasGraphicsContents(preferedType));
839 // get picture from clipboard
840 FileName filename = theClipboard().getAsGraphics(cur, preferedType);
841 if (filename.empty())
844 // create inset for graphic
845 InsetGraphics * inset = new InsetGraphics;
846 InsetGraphicsParams params;
847 params.filename = EmbeddedFile(filename.absFilename(), cur.buffer().filePath());
848 inset->setParams(params);
854 void pasteSelection(Cursor & cur, ErrorList & errorList)
856 if (selectionBuffer.empty())
859 pasteParagraphList(cur, selectionBuffer[0].first,
860 selectionBuffer[0].second, errorList);
864 void replaceSelectionWithString(Cursor & cur, docstring const & str, bool backwards)
867 DocIterator selbeg = cur.selectionBegin();
869 // Get font setting before we cut
871 selbeg.paragraph().getFontSettings(cur.buffer().params(), selbeg.pos());
873 // Insert the new string
874 pos_type pos = cur.selEnd().pos();
875 Paragraph & par = cur.selEnd().paragraph();
876 docstring::const_iterator cit = str.begin();
877 docstring::const_iterator end = str.end();
878 for (; cit != end; ++cit, ++pos)
879 par.insertChar(pos, *cit, font, cur.buffer().params().trackChanges);
882 cutSelection(cur, true, false);
884 // select the replacement
886 selbeg.pos() += str.length();
887 cur.setSelection(selbeg, -int(str.length()));
889 cur.setSelection(selbeg, str.length());
893 void replaceSelection(Cursor & cur)
896 cutSelection(cur, true, false);
900 void eraseSelection(Cursor & cur)
902 //lyxerr << "cap::eraseSelection begin: " << cur << endl;
903 CursorSlice const & i1 = cur.selBegin();
904 CursorSlice const & i2 = cur.selEnd();
905 if (i1.inset().asInsetMath()) {
908 if (i1.idx() == i2.idx()) {
909 i1.cell().erase(i1.pos(), i2.pos());
910 // We may have deleted i1.cell(cur.pos()).
911 // Make sure that pos is valid.
912 if (cur.pos() > cur.lastpos())
913 cur.pos() = cur.lastpos();
915 InsetMath * p = i1.asInsetMath();
916 Inset::row_type r1, r2;
917 Inset::col_type c1, c2;
918 region(i1, i2, r1, r2, c1, c2);
919 for (Inset::row_type row = r1; row <= r2; ++row)
920 for (Inset::col_type col = c1; col <= c2; ++col)
921 p->cell(p->index(row, col)).clear();
922 // We've deleted the whole cell. Only pos 0 is valid.
925 // need a valid cursor. (Lgb)
926 cur.clearSelection();
928 lyxerr << "can't erase this selection 1" << endl;
930 //lyxerr << "cap::eraseSelection end: " << cur << endl;
934 void selDel(Cursor & cur)
936 //lyxerr << "cap::selDel" << endl;
942 void selClearOrDel(Cursor & cur)
944 //lyxerr << "cap::selClearOrDel" << endl;
945 if (lyxrc.auto_region_delete)
948 cur.selection() = false;
952 docstring grabSelection(Cursor const & cur)
954 if (!cur.selection())
958 // grab selection by glueing multiple cells together. This is not what
959 // we want because selections spanning multiple cells will get "&" and "\\"
962 for (DocIterator dit = cur.selectionBegin();
963 dit != cur.selectionEnd(); dit.forwardPos())
964 os << asString(dit.cell());
968 CursorSlice i1 = cur.selBegin();
969 CursorSlice i2 = cur.selEnd();
971 if (i1.idx() == i2.idx()) {
972 if (i1.inset().asInsetMath()) {
973 MathData::const_iterator it = i1.cell().begin();
974 return asString(MathData(it + i1.pos(), it + i2.pos()));
976 return from_ascii("unknown selection 1");
980 Inset::row_type r1, r2;
981 Inset::col_type c1, c2;
982 region(i1, i2, r1, r2, c1, c2);
985 if (i1.inset().asInsetMath()) {
986 for (Inset::row_type row = r1; row <= r2; ++row) {
989 for (Inset::col_type col = c1; col <= c2; ++col) {
992 data += asString(i1.asInsetMath()->
993 cell(i1.asInsetMath()->index(row, col)));
997 data = from_ascii("unknown selection 2");
1003 void dirtyTabularStack(bool b)
1005 dirty_tabular_stack_ = b;
1009 bool tabularStackDirty()
1011 return dirty_tabular_stack_;