]> git.lyx.org Git - lyx.git/blobdiff - src/CutAndPaste.C
hopefully fix tex2lyx linking.
[lyx.git] / src / CutAndPaste.C
index f03569133d82dec3986874c2918e3341b021df91..88fbbb6141900187a35658d9131614bb2bbb425f 100644 (file)
 #include "CutAndPaste.h"
 
 #include "buffer.h"
+#include "buffer_funcs.h"
+#include "bufferparams.h"
+#include "cursor.h"
+#include "debug.h"
 #include "errorlist.h"
+#include "funcrequest.h"
 #include "gettext.h"
-#include "iterators.h"
+#include "insetiterator.h"
+#include "language.h"
+#include "lfuns.h"
+#include "lyxrc.h"
+#include "lyxtext.h"
 #include "lyxtextclasslist.h"
 #include "paragraph.h"
 #include "paragraph_funcs.h"
 #include "ParagraphParameters.h"
+#include "ParagraphList_fwd.h"
+#include "pariterator.h"
+#include "undo.h"
 
-#include "insets/insetinclude.h"
+#include "insets/insetcharstyle.h"
 #include "insets/insettabular.h"
 
-#include "support/LAssert.h"
+#include "mathed/MathData.h"
+#include "mathed/InsetMath.h"
+#include "mathed/MathSupport.h"
+
 #include "support/lstrings.h"
 
-using std::endl;
-using std::pair;
-using std::make_pair;
-using std::for_each;
-using std::vector;
+#include "frontends/Clipboard.h"
 
-using namespace lyx::support;
-using lyx::pos_type;
-using lyx::textclass_type;
+#include <boost/tuple/tuple.hpp>
 
 
-typedef limited_stack<pair<ParagraphList, textclass_type> > CutStack;
+namespace lyx {
 
-namespace {
+using support::bformat;
+using frontend::Clipboard;
 
-CutStack cuts(10);
-
-} // namespace anon
+using std::endl;
+using std::for_each;
+using std::make_pair;
+using std::pair;
+using std::vector;
+using std::string;
 
 
-std::vector<string>
-CutAndPaste::availableSelections(Buffer const & buffer)
-{
-       vector<string> selList;
+namespace {
 
-       CutStack::const_iterator cit = cuts.begin();
-       CutStack::const_iterator end = cuts.end();
-       for (; cit != end; ++cit) {
-               // we do not use cit-> here because gcc 2.9x does not
-               // like it (JMarc)
-               ParagraphList const & pars = (*cit).first;
-               string asciiSel;
-               ParagraphList::const_iterator pit = pars.begin();
-               ParagraphList::const_iterator pend = pars.end();
-               for (; pit != pend; ++pit) {
-                       asciiSel += pit->asString(buffer, false);
-                       if (asciiSel.size() > 25) {
-                               asciiSel.replace(22, string::npos, "...");
-                               break;
-                       }
-               }
+typedef std::pair<pit_type, int> PitPosPair;
 
-               selList.push_back(asciiSel);
-       }
-
-       return selList;
-}
+typedef limited_stack<pair<ParagraphList, textclass_type> > CutStack;
 
+CutStack theCuts(10);
 
-PitPosPair CutAndPaste::cutSelection(BufferParams const & params,
-                                    ParagraphList & pars,
-                                    ParagraphList::iterator startpit,
-                                    ParagraphList::iterator endpit,
-                                    int startpos, int endpos,
-                                    textclass_type tc, bool doclear)
-{
-       copySelection(startpit, endpit, startpos, endpos, tc);
-       return eraseSelection(params, pars, startpit, endpit, startpos,
-                             endpos, doclear);
-}
+// store whether the tabular stack is newer than the normal copy stack
+// FIXME: this is a workaround for bug 1919. Should be removed for 1.5,
+// when we (hopefully) have a one-for-all paste mechanism.
+bool dirty_tabular_stack_;
 
 
-PitPosPair CutAndPaste::eraseSelection(BufferParams const & params,
-                                      ParagraphList & pars,
-                                      ParagraphList::iterator startpit,
-                                      ParagraphList::iterator endpit,
-                                      int startpos, int endpos, bool doclear)
+void region(CursorSlice const & i1, CursorSlice const & i2,
+       InsetBase::row_type & r1, InsetBase::row_type & r2,
+       InsetBase::col_type & c1, InsetBase::col_type & c2)
 {
-       if (startpit == pars.end() || (startpos > startpit->size()))
-               return PitPosPair(endpit, endpos);
-
-       if (endpit == pars.end() || startpit == endpit) {
-               endpos -= startpit->erase(startpos, endpos);
-               return PitPosPair(endpit, endpos);
-       }
-
-       // clear end/begin fragments of the first/last par in selection
-       bool all_erased = true;
-
-       startpit->erase(startpos, startpit->size());
-       if (startpit->size() != startpos)
-               all_erased = false;
-
-       endpos -= endpit->erase(0, endpos);
-       if (endpos != 0)
-               all_erased = false;
-
-       // Loop through the deleted pars if any, erasing as needed
-
-       ParagraphList::iterator pit = boost::next(startpit);
-
-       while (pit != endpit && pit != pars.end()) {
-               ParagraphList::iterator const next = boost::next(pit);
-               // "erase" the contents of the par
-               pit->erase(0, pit->size());
-               if (!pit->size()) {
-                       // remove the par if it's now empty
-                       pars.erase(pit);
-               } else
-                       all_erased = false;
-               pit = next;
-       }
-
-#if 0 // FIXME: why for cut but not copy ?
-       // the cut selection should begin with standard layout
-       if (realcut) {
-               buf->params().clear();
-               buf->bibkey = 0;
-               buf->layout(textclasslist[buffer->params.textclass].defaultLayoutName());
-       }
-#endif
-
-       if (boost::next(startpit) == pars.end())
-               return PitPosPair(endpit, endpos);
-
-       if (doclear) {
-               boost::next(startpit)->stripLeadingSpaces();
-       }
-
-       // paste the paragraphs again, if possible
-       if (all_erased &&
-           (startpit->hasSameLayout(*boost::next(startpit)) ||
-            boost::next(startpit)->empty())) {
-               mergeParagraph(params, pars, startpit);
-               // this because endpar gets deleted here!
-               endpit = startpit;
-               endpos = startpos;
-       }
-
-       return PitPosPair(endpit, endpos);
-
+       InsetBase & p = i1.inset();
+       c1 = p.col(i1.idx());
+       c2 = p.col(i2.idx());
+       if (c1 > c2)
+               std::swap(c1, c2);
+       r1 = p.row(i1.idx());
+       r2 = p.row(i2.idx());
+       if (r1 > r2)
+               std::swap(r1, r2);
 }
 
 
-namespace {
-
-struct resetOwnerAndChanges {
-       void operator()(Paragraph & p) {
-               p.cleanChanges();
-               p.setInsetOwner(0);
-       }
-};
-
-} // anon namespace
-
-bool CutAndPaste::copySelection(ParagraphList::iterator startpit,
-                               ParagraphList::iterator endpit,
-                               int start, int end, textclass_type tc)
+bool checkPastePossible(int index)
 {
-       Assert(0 <= start && start <= startpit->size());
-       Assert(0 <= end && end <= endpit->size());
-       Assert(startpit != endpit || start <= end);
-
-       ParagraphList paragraphs;
-
-       // Clone the paragraphs within the selection.
-       ParagraphList::iterator postend = boost::next(endpit);
-
-       paragraphs.assign(startpit, postend);
-       for_each(paragraphs.begin(), paragraphs.end(), resetOwnerAndChanges());
-
-       // Cut out the end of the last paragraph.
-       Paragraph & back = paragraphs.back();
-       back.erase(end, back.size());
-
-       // Cut out the begin of the first paragraph
-       Paragraph & front = paragraphs.front();
-       front.erase(0, start);
-
-       cuts.push(make_pair(paragraphs, tc));
-
-       return true;
+       return size_t(index) < theCuts.size() && !theCuts[index].first.empty();
 }
 
 
-pair<PitPosPair, ParagraphList::iterator>
-CutAndPaste::pasteSelection(Buffer const & buffer,
-                           ParagraphList & pars,
-                           ParagraphList::iterator pit, int pos,
-                           textclass_type tc,
-                           ErrorList & errorlist)
+pair<PitPosPair, pit_type>
+pasteSelectionHelper(LCursor & cur, ParagraphList const & parlist,
+                    textclass_type textclass, ErrorList & errorlist)
 {
-       return pasteSelection(buffer, pars, pit, pos, tc, 0, errorlist);
-}
-
+       Buffer const & buffer = cur.buffer();
+       pit_type pit = cur.pit();
+       pos_type pos = cur.pos();
+       ParagraphList & pars = cur.text()->paragraphs();
 
-pair<PitPosPair, ParagraphList::iterator>
-CutAndPaste::pasteSelection(Buffer const & buffer,
-                           ParagraphList & pars,
-                           ParagraphList::iterator pit, int pos,
-                           textclass_type tc, size_t cut_index,
-                           ErrorList & errorlist)
-{
-       if (!checkPastePossible())
+       if (parlist.empty())
                return make_pair(PitPosPair(pit, pos), pit);
 
-       Assert (pos <= pit->size());
+       BOOST_ASSERT (pos <= pars[pit].size());
 
        // Make a copy of the CaP paragraphs.
-       ParagraphList simple_cut_clone = cuts[cut_index].first;
-       textclass_type const textclass = cuts[cut_index].second;
+       ParagraphList insertion = parlist;
+       textclass_type const tc = buffer.params().textclass;
 
        // Now remove all out of the pars which is NOT allowed in the
        // new environment and set also another font if that is required.
 
+       // Convert newline to paragraph break in ERT inset.
+       // This should not be here!
+       if (pars[pit].inInset() &&
+           pars[pit].inInset()->lyxCode() == InsetBase::ERT_CODE) {
+               for (ParagraphList::size_type i = 0; i < insertion.size(); ++i) {
+                       for (pos_type j = 0; j < insertion[i].size(); ++j) {
+                               if (insertion[i].isNewline(j)) {
+                                       // do not track deletion of newline
+                                       insertion[i].eraseChar(j, false);
+                                       breakParagraphConservative(
+                                                       buffer.params(),
+                                                       insertion, i, j);
+                               }
+                       }
+               }
+       }
+
+       // If we are in an inset which returns forceDefaultParagraphs,
+       // set the paragraphs to default
+       if (cur.inset().forceDefaultParagraphs(cur.idx())) {
+               LyXLayout_ptr const layout = 
+                       buffer.params().getLyXTextClass().defaultLayout();
+               ParagraphList::iterator const end = insertion.end();
+               for (ParagraphList::iterator par = insertion.begin(); 
+                               par != end; ++par)
+                       par->layout(layout);
+       }
+
        // Make sure there is no class difference.
-       SwitchLayoutsBetweenClasses(textclass, tc, simple_cut_clone,
-                                   errorlist);
+       InsetText in;
+       // This works without copying any paragraph data because we have
+       // a specialized swap method for ParagraphList. This is important
+       // since we store pointers to insets at some places and we don't
+       // want to invalidate them.
+       insertion.swap(in.paragraphs());
+       cap::switchBetweenClasses(textclass, tc, in, errorlist);
+       insertion.swap(in.paragraphs());
 
-       ParagraphList::iterator tmpbuf = simple_cut_clone.begin();
-       int depth_delta = pit->params().depth() - tmpbuf->params().depth();
+       ParagraphList::iterator tmpbuf = insertion.begin();
+       int depth_delta = pars[pit].params().depth() - tmpbuf->params().depth();
 
-       Paragraph::depth_type max_depth = pit->getMaxDepthAfter();
+       depth_type max_depth = pars[pit].getMaxDepthAfter();
 
-       for (; tmpbuf != simple_cut_clone.end(); ++tmpbuf) {
+       for (; tmpbuf != insertion.end(); ++tmpbuf) {
                // If we have a negative jump so that the depth would
                // go below 0 depth then we have to redo the delta to
                // this new max depth level so that subsequent
                // paragraphs are aligned correctly to this paragraph
                // at level 0.
-               if ((int(tmpbuf->params().depth()) + depth_delta) < 0)
+               if (int(tmpbuf->params().depth()) + depth_delta < 0)
                        depth_delta = 0;
 
                // Set the right depth so that we are not too deep or shallow.
@@ -259,37 +178,35 @@ CutAndPaste::pasteSelection(Buffer const & buffer,
 
                // Only set this from the 2nd on as the 2nd depends
                // for maxDepth still on pit.
-               if (tmpbuf != simple_cut_clone.begin())
+               if (tmpbuf != insertion.begin())
                        max_depth = tmpbuf->getMaxDepthAfter();
 
                // Set the inset owner of this paragraph.
-               tmpbuf->setInsetOwner(pit->inInset());
+               tmpbuf->setInsetOwner(pars[pit].inInset());
                for (pos_type i = 0; i < tmpbuf->size(); ++i) {
-                       if (tmpbuf->getChar(i) == Paragraph::META_INSET) {
-                               if (!pit->insetAllowed(tmpbuf->getInset(i)->lyxCode())) {
-                                       tmpbuf->erase(i--);
-                               }
-                       } else {
-                               LyXFont f1 = tmpbuf->getFont(buffer.params, i, outerFont(pit, pars));
-                               LyXFont f2 = f1;
-                               if (!pit->checkInsertChar(f1)) {
-                                       tmpbuf->erase(i--);
-                               } else if (f1 != f2) {
-                                       tmpbuf->setFont(i, f1);
-                               }
-                       }
+                       if (tmpbuf->getChar(i) == Paragraph::META_INSET &&
+                           !pars[pit].insetAllowed(tmpbuf->getInset(i)->lyxCode()))
+                               // do not track deletion of invalid insets
+                               tmpbuf->eraseChar(i--, false);
                }
+
+               tmpbuf->setChange(Change(buffer.params().trackChanges ?
+                                        Change::INSERTED : Change::UNCHANGED));
+       }
+
+       bool const empty = pars[pit].empty();
+       if (!empty) {
+               // Make the buf exactly the same layout as the cursor
+               // paragraph.
+               insertion.begin()->makeSameLayout(pars[pit]);
        }
 
-       // Make the buf exactly the same layout than
-       // the cursor paragraph.
-       simple_cut_clone.begin()->makeSameLayout(*pit);
+       // Prepare the paragraphs and insets for insertion.
+       // A couple of insets store buffer references so need updating.
+       insertion.swap(in.paragraphs());
 
-       // Prepare the paragraphs and insets for insertion
-       // A couple of insets store buffer references so need
-       // updating
-       ParIterator fpit(simple_cut_clone.begin(), simple_cut_clone);
-       ParIterator fend(simple_cut_clone.end(), simple_cut_clone);
+       ParIterator fpit = par_iterator_begin(in);
+       ParIterator fend = par_iterator_end(in);
 
        for (; fpit != fend; ++fpit) {
                InsetList::iterator lit = fpit->insetlist.begin();
@@ -297,17 +214,9 @@ CutAndPaste::pasteSelection(Buffer const & buffer,
 
                for (; lit != eit; ++lit) {
                        switch (lit->inset->lyxCode()) {
-                       case InsetOld::INCLUDE_CODE: {
-                               InsetInclude * ii = static_cast<InsetInclude*>(lit->inset);
-                               InsetInclude::Params ip = ii->params();
-                               ip.masterFilename_ = buffer.fileName();
-                               ii->set(ip);
-                               break;
-                       }
-
-                       case InsetOld::TABULAR_CODE: {
+                       case InsetBase::TABULAR_CODE: {
                                InsetTabular * it = static_cast<InsetTabular*>(lit->inset);
-                               it->buffer(const_cast<Buffer*>(&buffer));
+                               it->buffer(&buffer);
                                break;
                        }
 
@@ -316,80 +225,175 @@ CutAndPaste::pasteSelection(Buffer const & buffer,
                        }
                }
        }
+       insertion.swap(in.paragraphs());
 
-       bool paste_the_end = false;
+       // Split the paragraph for inserting the buf if necessary.
+       if (!empty)
+               breakParagraphConservative(buffer.params(), pars, pit, pos);
 
-       // Open the paragraph for inserting the buf
-       // if necessary.
-       if (pit->size() > pos || boost::next(pit) == pars.end()) {
-               breakParagraphConservative(buffer.params,
-                                          pars, pit, pos);
-               paste_the_end = true;
+       // Paste it!
+       if (empty) {
+               pars.insert(boost::next(pars.begin(), pit),
+                           insertion.begin(),
+                           insertion.end());
+
+               // merge the empty par with the last par of the insertion
+               mergeParagraph(buffer.params(), pars,
+                              pit + insertion.size() - 1);
+       } else {
+               pars.insert(boost::next(pars.begin(), pit + 1),
+                           insertion.begin(),
+                           insertion.end());
+
+               // merge the first par of the insertion with the current par
+               mergeParagraph(buffer.params(), pars, pit);
        }
 
-       // Set the end for redoing later.
-       ParagraphList::iterator endpit = boost::next(boost::next(pit));
+       pit_type last_paste = pit + insertion.size() - 1;
 
-       // Paste it!
+       // Store the new cursor position.
+       pit = last_paste;
+       pos = pars[last_paste].size();
+
+       // Join (conditionally) last pasted paragraph with next one, i.e.,
+       // the tail of the spliced document paragraph
+       if (!empty && last_paste + 1 != pit_type(pars.size())) {
+               if (pars[last_paste + 1].hasSameLayout(pars[last_paste])) {
+                       mergeParagraph(buffer.params(), pars, last_paste);
+               } else if (pars[last_paste + 1].empty()) {
+                       pars[last_paste + 1].makeSameLayout(pars[last_paste]);
+                       mergeParagraph(buffer.params(), pars, last_paste);
+               } else if (pars[last_paste].empty()) {
+                       pars[last_paste].makeSameLayout(pars[last_paste + 1]);
+                       mergeParagraph(buffer.params(), pars, last_paste);
+               } else {
+                       pars[last_paste + 1].stripLeadingSpaces();
+                       ++last_paste;
+               }
+       }
 
-       ParagraphList::iterator past_pit = boost::next(pit);
-       pars.splice(past_pit, simple_cut_clone);
-       ParagraphList::iterator last_paste = boost::prior(past_pit);
+       return make_pair(PitPosPair(pit, pos), last_paste + 1);
+}
 
-       // If we only inserted one paragraph.
-       if (boost::next(pit) == last_paste)
-               last_paste = pit;
 
-       mergeParagraph(buffer.params, pars, pit);
+PitPosPair eraseSelectionHelper(BufferParams const & params,
+       ParagraphList & pars,
+       pit_type startpit, pit_type endpit,
+       int startpos, int endpos, bool doclear)
+{
+       // Start of selection is really invalid.
+       if (startpit == pit_type(pars.size()) ||
+           (startpos > pars[startpit].size()))
+               return PitPosPair(endpit, endpos);
 
-       // Store the new cursor position.
-       pit = last_paste;
-       pos = last_paste->size();
-
-       // Maybe some pasting.
-#warning CHECK! Are we comparing last_paste to the wrong list here? (Lgb)
-       if (boost::next(last_paste) != pars.end() &&
-           paste_the_end) {
-               if (boost::next(last_paste)->hasSameLayout(*last_paste)) {
-                       mergeParagraph(buffer.params, pars,
-                                      last_paste);
-               } else if (boost::next(last_paste)->empty()) {
-                       boost::next(last_paste)->makeSameLayout(*last_paste);
-                       mergeParagraph(buffer.params, pars,
-                                      last_paste);
-               } else if (last_paste->empty()) {
-                       last_paste->makeSameLayout(*boost::next(last_paste));
-                       mergeParagraph(buffer.params, pars,
-                                      last_paste);
+       // Start and end is inside same paragraph
+       if (endpit == pit_type(pars.size()) || startpit == endpit) {
+               endpos -= pars[startpit].eraseChars(startpos, endpos, params.trackChanges);
+               return PitPosPair(endpit, endpos);
+       }
+
+       // A paragraph break has to be physically removed by merging, but
+       // only if either (1) change tracking is off, or (2) the para break
+       // is "blue"
+       for (pit_type pit = startpit; pit != endpit + 1;) {
+               // FIXME: Change tracking (MG)
+               bool const merge = !params.trackChanges ||
+                                  pars[pit].isInserted(pars[pit].size());
+               pos_type const left  = ( pit == startpit ? startpos : 0 );
+               pos_type const right = ( pit == endpit ? endpos :
+                               pars[pit].size() + 1 );
+               // Logical erase only:
+               pars[pit].eraseChars(left, right, false);
+               // Separate handling of para break:
+               if (merge && pit != endpit &&
+                  (pit + 1 != endpit || pars[pit].hasSameLayout(pars[pit + 1]))) {
+                       pos_type const thissize = pars[pit].size();
+                       if (doclear)
+                               pars[pit + 1].stripLeadingSpaces();
+                       mergeParagraph(params, pars, pit);
+                       --endpit;
+                       if (pit == endpit)
+                               endpos += thissize;
                } else
-                       boost::next(last_paste)->stripLeadingSpaces();
+                       ++pit;
        }
 
-       return make_pair(PitPosPair(pit, pos), endpit);
+       // Ensure legal cursor pos:
+       endpit = startpit;
+       endpos = startpos;
+       return PitPosPair(endpit, endpos);
 }
 
 
-int CutAndPaste::nrOfParagraphs()
+void copySelectionHelper(Buffer const & buf, ParagraphList & pars,
+       pit_type startpit, pit_type endpit,
+       int start, int end, textclass_type tc)
 {
-       return cuts.empty() ? 0 : cuts[0].first.size();
+       BOOST_ASSERT(0 <= start && start <= pars[startpit].size());
+       BOOST_ASSERT(0 <= end && end <= pars[endpit].size());
+       BOOST_ASSERT(startpit != endpit || start <= end);
+
+       // Clone the paragraphs within the selection.
+       ParagraphList paragraphs(boost::next(pars.begin(), startpit),
+                                boost::next(pars.begin(), endpit + 1));
+
+       ParagraphList::iterator it = paragraphs.begin();
+       ParagraphList::iterator it_end = paragraphs.end();
+
+       for (; it != it_end; it++) {
+               // ERT paragraphs have the Language latex_language.
+               // This is invalid outside of ERT, so we need to change it
+               // to the buffer language.
+               if (it->ownerCode() == InsetBase::ERT_CODE) {
+                       it->changeLanguage(buf.params(), latex_language,
+                                          buf.getLanguage());
+               }
+               it->setInsetOwner(0);
+       }
+
+       // Cut out the end of the last paragraph.
+       Paragraph & back = paragraphs.back();
+       // do not track deletion here; it is an internal action not visible to the user
+       back.eraseChars(end, back.size(), false);
+
+       // Cut out the begin of the first paragraph
+       Paragraph & front = paragraphs.front();
+       // again, do not track deletion
+       front.eraseChars(0, start, false);
+
+       theCuts.push(make_pair(paragraphs, tc));
 }
 
+} // namespace anon
+
+
 
-int CutAndPaste::SwitchLayoutsBetweenClasses(textclass_type c1,
-                                            textclass_type c2,
-                                            ParagraphList & pars,
-                                            ErrorList & errorlist)
+
+namespace cap {
+
+docstring grabAndEraseSelection(LCursor & cur)
 {
-       Assert(!pars.empty());
+       if (!cur.selection())
+               return docstring();
+       docstring res = grabSelection(cur);
+       eraseSelection(cur);
+       return res;
+}
+
 
-       int ret = 0;
+void switchBetweenClasses(textclass_type c1, textclass_type c2,
+       InsetText & in, ErrorList & errorlist)
+{
+       BOOST_ASSERT(!in.paragraphs().empty());
        if (c1 == c2)
-               return ret;
+               return;
 
        LyXTextClass const & tclass1 = textclasslist[c1];
        LyXTextClass const & tclass2 = textclasslist[c2];
-       ParIterator end = ParIterator(pars.end(), pars);
-       for (ParIterator it = ParIterator(pars.begin(), pars); it != end; ++it) {
+
+       // layouts
+       ParIterator end = par_iterator_end(in);
+       for (ParIterator it = par_iterator_begin(in); it != end; ++it) {
                string const name = it->layout()->name();
                bool hasLayout = tclass2.hasLayout(name);
 
@@ -399,22 +403,402 @@ int CutAndPaste::SwitchLayoutsBetweenClasses(textclass_type c1,
                        it->layout(tclass2.defaultLayout());
 
                if (!hasLayout && name != tclass1.defaultLayoutName()) {
-                       ++ret;
-                       string const s = bformat(
-                               _("Layout had to be changed from\n%1$s to %2$s\n"
-                               "because of class conversion from\n%3$s to %4$s"),
-                        name, it->layout()->name(), tclass1.name(), tclass2.name());
+                       docstring const s = bformat(
+                                                _("Layout had to be changed from\n%1$s to %2$s\n"
+                                               "because of class conversion from\n%3$s to %4$s"),
+                        from_utf8(name), from_utf8(it->layout()->name()),
+                        from_utf8(tclass1.name()), from_utf8(tclass2.name()));
                        // To warn the user that something had to be done.
-                       errorlist.push_back(ErrorItem("Changed Layout", s,
+                       errorlist.push_back(ErrorItem(_("Changed Layout"), s,
                                                      it->id(), 0,
                                                      it->size()));
                }
        }
-       return ret;
+
+       // character styles
+       InsetIterator const i_end = inset_iterator_end(in);
+       for (InsetIterator it = inset_iterator_begin(in); it != i_end; ++it) {
+               if (it->lyxCode() == InsetBase::CHARSTYLE_CODE) {
+                       InsetCharStyle & inset =
+                               static_cast<InsetCharStyle &>(*it);
+                       string const name = inset.params().type;
+                       CharStyles::iterator const found_cs =
+                               tclass2.charstyle(name);
+                       if (found_cs == tclass2.charstyles().end()) {
+                               // The character style is undefined in tclass2
+                               inset.setUndefined();
+                               docstring const s = bformat(_(
+                                       "Character style %1$s is "
+                                       "undefined because of class "
+                                       "conversion from\n%2$s to %3$s"),
+                                        from_utf8(name), from_utf8(tclass1.name()),
+                                        from_utf8(tclass2.name()));
+                               // To warn the user that something had to be done.
+                               errorlist.push_back(ErrorItem(
+                                       _("Undefined character style"),
+                                       s, it.paragraph().id(), it.pos(), it.pos() + 1));
+                       } else if (inset.undefined()) {
+                               // The character style is undefined in
+                               // tclass1 and is defined in tclass2
+                               inset.setDefined(found_cs);
+                       }
+               }
+       }
 }
 
 
-bool CutAndPaste::checkPastePossible()
+std::vector<docstring> const availableSelections(Buffer const & buffer)
 {
-       return !cuts.empty() && !cuts[0].first.empty();
+       vector<docstring> selList;
+
+       CutStack::const_iterator cit = theCuts.begin();
+       CutStack::const_iterator end = theCuts.end();
+       for (; cit != end; ++cit) {
+               // we do not use cit-> here because gcc 2.9x does not
+               // like it (JMarc)
+               ParagraphList const & pars = (*cit).first;
+               docstring asciiSel;
+               ParagraphList::const_iterator pit = pars.begin();
+               ParagraphList::const_iterator pend = pars.end();
+               for (; pit != pend; ++pit) {
+                       asciiSel += pit->asString(buffer, false);
+                       if (asciiSel.size() > 25) {
+                               asciiSel.replace(22, docstring::npos,
+                                                from_ascii("..."));
+                               break;
+                       }
+               }
+
+               selList.push_back(asciiSel);
+       }
+
+       return selList;
 }
+
+
+size_type numberOfSelections()
+{
+       return theCuts.size();
+}
+
+
+void cutSelection(LCursor & cur, bool doclear, bool realcut)
+{
+       // This doesn't make sense, if there is no selection
+       if (!cur.selection())
+               return;
+
+       // OK, we have a selection. This is always between cur.selBegin()
+       // and cur.selEnd()
+
+       if (cur.inTexted()) {
+               LyXText * text = cur.text();
+               BOOST_ASSERT(text);
+               // Stuff what we got on the clipboard. Even if there is no selection.
+
+               // There is a problem with having the stuffing here in that the
+               // larger the selection the slower LyX will get. This can be
+               // solved by running the line below only when the selection has
+               // finished. The solution used currently just works, to make it
+               // faster we need to be more clever and probably also have more
+               // calls to theSelection().put. (Lgb)
+//             theSelection().put(cur.selectionAsString(true));
+
+
+               // make sure that the depth behind the selection are restored, too
+               recordUndoSelection(cur);
+               pit_type begpit = cur.selBegin().pit();
+               pit_type endpit = cur.selEnd().pit();
+
+               int endpos = cur.selEnd().pos();
+
+               BufferParams const & bp = cur.buffer().params();
+               if (realcut) {
+                       copySelectionHelper(cur.buffer(),
+                               text->paragraphs(),
+                               begpit, endpit,
+                               cur.selBegin().pos(), endpos,
+                               bp.textclass);
+               }
+
+               boost::tie(endpit, endpos) =
+                       eraseSelectionHelper(bp,
+                               text->paragraphs(),
+                               begpit, endpit,
+                               cur.selBegin().pos(), endpos,
+                               doclear);
+
+               // sometimes necessary
+               if (doclear)
+                       text->paragraphs()[begpit].stripLeadingSpaces();
+
+               // cutSelection can invalidate the cursor so we need to set
+               // it anew. (Lgb)
+               // we prefer the end for when tracking changes
+               cur.pos() = endpos;
+               cur.pit() = endpit;
+
+               // need a valid cursor. (Lgb)
+               cur.clearSelection();
+               updateLabels(cur.buffer());
+
+               // tell tabular that a recent copy happened
+               dirtyTabularStack(false);
+       }
+
+       if (cur.inMathed()) {
+               if (cur.selBegin().idx() != cur.selEnd().idx()) {
+                       // The current selection spans more than one cell.
+                       // Record all cells
+                       recordUndoInset(cur);
+               } else {
+                       // Record only the current cell to avoid a jumping
+                       // cursor after undo
+                       recordUndo(cur);
+               }
+               if (realcut)
+                       copySelection(cur);
+               eraseSelection(cur);
+       }
+}
+
+
+void copySelection(LCursor & cur)
+{
+       // stuff the selection onto the X clipboard, from an explicit copy request
+       theClipboard().put(cur.selectionAsString(true));
+
+       // this doesn't make sense, if there is no selection
+       if (!cur.selection())
+               return;
+
+       if (cur.inTexted()) {
+               LyXText * text = cur.text();
+               BOOST_ASSERT(text);
+               // ok we have a selection. This is always between cur.selBegin()
+               // and sel_end cursor
+
+               // copy behind a space if there is one
+               ParagraphList & pars = text->paragraphs();
+               pos_type pos = cur.selBegin().pos();
+               pit_type par = cur.selBegin().pit();
+               while (pos < pars[par].size()
+                                        && pars[par].isLineSeparator(pos)
+                                        && (par != cur.selEnd().pit() || pos < cur.selEnd().pos()))
+                       ++pos;
+
+               copySelectionHelper(cur.buffer(), pars, par, cur.selEnd().pit(),
+                       pos, cur.selEnd().pos(), cur.buffer().params().textclass);
+       }
+
+       if (cur.inMathed()) {
+               //lyxerr << "copySelection in mathed" << endl;
+               ParagraphList pars;
+               Paragraph par;
+               BufferParams const & bp = cur.buffer().params();
+               par.layout(bp.getLyXTextClass().defaultLayout());
+               par.insert(0, grabSelection(cur), LyXFont(), Change(Change::UNCHANGED));
+               pars.push_back(par);
+               theCuts.push(make_pair(pars, bp.textclass));
+       }
+       // tell tabular that a recent copy happened
+       dirtyTabularStack(false);
+}
+
+
+docstring getSelection(Buffer const & buf, size_t sel_index)
+{
+       return sel_index < theCuts.size()
+               ? theCuts[sel_index].first.back().asString(buf, false)
+               : docstring();
+}
+
+
+void pasteParagraphList(LCursor & cur, ParagraphList const & parlist,
+                       textclass_type textclass, ErrorList & errorList)
+{
+       if (cur.inTexted()) {
+               LyXText * text = cur.text();
+               BOOST_ASSERT(text);
+
+               pit_type endpit;
+               PitPosPair ppp;
+
+               boost::tie(ppp, endpit) =
+                       pasteSelectionHelper(cur, parlist,
+                                            textclass, errorList);
+               updateLabels(cur.buffer());
+               cur.clearSelection();
+               text->setCursor(cur, ppp.first, ppp.second);
+       }
+
+       // mathed is handled in InsetMathNest/InsetMathGrid
+       BOOST_ASSERT(!cur.inMathed());
+}
+
+
+void pasteSelection(LCursor & cur, ErrorList & errorList, size_t sel_index)
+{
+       // this does not make sense, if there is nothing to paste
+       if (!checkPastePossible(sel_index))
+               return;
+
+       recordUndo(cur);
+       pasteParagraphList(cur, theCuts[sel_index].first,
+                          theCuts[sel_index].second, errorList);
+       cur.setSelection();
+}
+
+
+// simple replacing. The font of the first selected character is used
+void replaceSelectionWithString(LCursor & cur, string const & str, bool backwards)
+{
+       recordUndo(cur);
+       DocIterator selbeg = cur.selectionBegin();
+
+       // Get font setting before we cut
+       LyXFont const font =
+               selbeg.paragraph().getFontSettings(cur.buffer().params(), selbeg.pos());
+
+       // Insert the new string
+       pos_type pos = cur.selEnd().pos();
+       Paragraph & par = cur.selEnd().paragraph();
+       string::const_iterator cit = str.begin();
+       string::const_iterator end = str.end();
+       for (; cit != end; ++cit, ++pos)
+               par.insertChar(pos, (*cit), font, cur.buffer().params().trackChanges);
+
+       // Cut the selection
+       cutSelection(cur, true, false);
+
+       // select the replacement
+       if (backwards) {
+               selbeg.pos() += str.length();
+               cur.setSelection(selbeg, -int(str.length()));
+       } else
+               cur.setSelection(selbeg, str.length());
+}
+
+
+void replaceSelection(LCursor & cur)
+{
+       if (cur.selection())
+               cutSelection(cur, true, false);
+}
+
+
+void eraseSelection(LCursor & cur)
+{
+       //lyxerr << "LCursor::eraseSelection begin: " << cur << endl;
+       CursorSlice const & i1 = cur.selBegin();
+       CursorSlice const & i2 = cur.selEnd();
+       if (i1.inset().asInsetMath()) {
+               cur.top() = i1;
+               if (i1.idx() == i2.idx()) {
+                       i1.cell().erase(i1.pos(), i2.pos());
+                       // We may have deleted i1.cell(cur.pos()).
+                       // Make sure that pos is valid.
+                       if (cur.pos() > cur.lastpos())
+                               cur.pos() = cur.lastpos();
+               } else {
+                       InsetMath * p = i1.asInsetMath();
+                       InsetBase::row_type r1, r2;
+                       InsetBase::col_type c1, c2;
+                       region(i1, i2, r1, r2, c1, c2);
+                       for (InsetBase::row_type row = r1; row <= r2; ++row)
+                               for (InsetBase::col_type col = c1; col <= c2; ++col)
+                                       p->cell(p->index(row, col)).clear();
+                       // We've deleted the whole cell. Only pos 0 is valid.
+                       cur.pos() = 0;
+               }
+               // need a valid cursor. (Lgb)
+               cur.clearSelection();
+       } else {
+               lyxerr << "can't erase this selection 1" << endl;
+       }
+       //lyxerr << "LCursor::eraseSelection end: " << cur << endl;
+}
+
+
+void selDel(LCursor & cur)
+{
+       //lyxerr << "LCursor::selDel" << endl;
+       if (cur.selection())
+               eraseSelection(cur);
+}
+
+
+void selClearOrDel(LCursor & cur)
+{
+       //lyxerr << "LCursor::selClearOrDel" << endl;
+       if (lyxrc.auto_region_delete)
+               selDel(cur);
+       else
+               cur.selection() = false;
+}
+
+
+docstring grabSelection(LCursor const & cur)
+{
+       if (!cur.selection())
+               return docstring();
+
+       // FIXME: What is wrong with the following?
+#if 0
+       std::ostringstream os;
+       for (DocIterator dit = cur.selectionBegin();
+            dit != cur.selectionEnd(); dit.forwardPos())
+               os << asString(dit.cell());
+       return os.str();
+#endif
+
+       CursorSlice i1 = cur.selBegin();
+       CursorSlice i2 = cur.selEnd();
+
+       if (i1.idx() == i2.idx()) {
+               if (i1.inset().asInsetMath()) {
+                       MathArray::const_iterator it = i1.cell().begin();
+                       return asString(MathArray(it + i1.pos(), it + i2.pos()));
+               } else {
+                       return from_ascii("unknown selection 1");
+               }
+       }
+
+       InsetBase::row_type r1, r2;
+       InsetBase::col_type c1, c2;
+       region(i1, i2, r1, r2, c1, c2);
+
+       docstring data;
+       if (i1.inset().asInsetMath()) {
+               for (InsetBase::row_type row = r1; row <= r2; ++row) {
+                       if (row > r1)
+                               data += "\\\\";
+                       for (InsetBase::col_type col = c1; col <= c2; ++col) {
+                               if (col > c1)
+                                       data += '&';
+                               data += asString(i1.asInsetMath()->
+                                       cell(i1.asInsetMath()->index(row, col)));
+                       }
+               }
+       } else {
+               data = from_ascii("unknown selection 2");
+       }
+       return data;
+}
+
+
+void dirtyTabularStack(bool b)
+{
+       dirty_tabular_stack_ = b;
+}
+
+
+bool tabularStackDirty()
+{
+       return dirty_tabular_stack_;
+}
+
+
+} // namespace cap
+
+} // namespace lyx