-/* This file is part of
- * ======================================================
+/*
+ * \file CutAndPaste.C
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
*
- * LyX, The Document Processor
+ * \author Jürgen Vigna
+ * \author Lars Gullik Bjønnes
+ * \author Alfredo Braunstein
*
- * Copyright 1995-2001 The LyX Team.
- *
- * ====================================================== */
+ * Full author contact details are available in file CREDITS.
+ */
#include <config.h>
#include "CutAndPaste.h"
-#include "BufferView.h"
+
#include "buffer.h"
-#include "paragraph.h"
-#include "ParagraphParameters.h"
-#include "lyxtext.h"
-#include "lyxcursor.h"
+#include "bufferparams.h"
+#include "errorlist.h"
#include "gettext.h"
#include "iterators.h"
#include "lyxtextclasslist.h"
-#include "undo_funcs.h"
+#include "paragraph.h"
#include "paragraph_funcs.h"
-#include "debug.h"
+#include "ParagraphParameters.h"
-#include "insets/inseterror.h"
+#include "insets/insettabular.h"
-#include "support/BoostFormat.h"
+#include "support/lstrings.h"
-using std::endl;
-using std::pair;
using lyx::pos_type;
using lyx::textclass_type;
-extern BufferView * current_view;
-
-// Jürgen, note that this means that you cannot currently have a list
-// of selections cut/copied. So IMHO later we should have a
-// list/vector/deque that we could store
-// struct selection_item {
-// Paragraph * buf;
-// LyXTextClassList::size_type textclass;
-// };
-// in and some method of choosing beween them (based on the first few chars
-// in the selection probably.) This would be a nice feature and quite
-// easy to implement. (Lgb)
-//
-// Sure but I just cleaned up this code for now with the same functionality
-// as before. I also want to add a XClipboard function so that we can copy
-// text from LyX to some other X-application in the form of ASCII or in the
-// form of LaTeX (or Docbook depending on the document-class!). Think how nice
-// it could be to select a math-inset do a "Copy to X-Clipboard as LaTeX" and
-// then do a middle mouse button click in the application you want and have
-// the whole formula there in LaTeX-Code. (Jug)
+using lyx::support::bformat;
+
+using std::for_each;
+using std::make_pair;
+using std::pair;
+using std::vector;
+using std::string;
+
+
+typedef limited_stack<pair<ParagraphList, textclass_type> > CutStack;
namespace {
-// FIXME: stupid name
-ParagraphList paragraphs;
-textclass_type textclass = 0;
+CutStack cuts(10);
} // namespace anon
-bool CutAndPaste::cutSelection(Paragraph * startpar, Paragraph * endpar,
- int start, int & end, textclass_type tc,
- bool doclear, bool realcut)
+std::vector<string> const
+CutAndPaste::availableSelections(Buffer const & buffer)
{
- if (!startpar || (start > startpar->size()))
- return false;
+ vector<string> selList;
+
+ 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;
+ }
+ }
- if (realcut) {
- copySelection(startpar, endpar, start, end, tc);
+ selList.push_back(asciiSel);
}
- if (!endpar || startpar == endpar) {
- if (startpar->erase(start, end)) {
- // Some chars were erased, go to start to be safe
- end = start;
- }
- return true;
- }
+ return selList;
+}
- bool actually_erased = false;
- // clear end/begin fragments of the first/last par in selection
- actually_erased |= (startpar)->erase(start, startpar->size());
- if (endpar->erase(0, end)) {
- actually_erased = true;
- end = 0;
- }
+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);
+}
- // Loop through the deleted pars if any, erasing as needed
- Paragraph * pit = startpar->next();
+PitPosPair CutAndPaste::eraseSelection(BufferParams const & params,
+ ParagraphList & pars,
+ ParagraphList::iterator startpit,
+ ParagraphList::iterator endpit,
+ int startpos, int endpos, bool doclear)
+{
+ if (startpit == pars.end() || (startpos > startpit->size()))
+ return PitPosPair(endpit, endpos);
- while (true) {
- // *endpar can be 0
- if (!pit)
- break;
+ if (endpit == pars.end() || startpit == endpit) {
+ endpos -= startpit->erase(startpos, endpos);
+ return PitPosPair(endpit, endpos);
+ }
- Paragraph * next = pit->next();
+ // clear end/begin fragments of the first/last par in selection
+ bool all_erased = true;
- // "erase" the contents of the par
- if (pit != endpar) {
- actually_erased |= pit->erase(0, pit->size());
+ startpit->erase(startpos, startpit->size());
+ if (startpit->size() != startpos)
+ all_erased = false;
- // remove the par if it's now empty
- if (actually_erased) {
- pit->previous()->next(pit->next());
- if (next) {
- next->previous(pit->previous());
- }
+ endpos -= endpit->erase(0, endpos);
+ if (endpos != 0)
+ all_erased = false;
- delete pit;
- }
- }
+ // Loop through the deleted pars if any, erasing as needed
- if (pit == endpar)
- break;
+ 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;
}
}
#endif
- if (!startpar->next())
- return true;
-
- Buffer * buffer = current_view->buffer();
+ if (boost::next(startpit) == pars.end())
+ return PitPosPair(endpit, endpos);
if (doclear) {
- startpar->next()->stripLeadingSpaces();
+ boost::next(startpit)->stripLeadingSpaces();
}
- if (!actually_erased)
- return true;
-
// paste the paragraphs again, if possible
- if (startpar->hasSameLayout(startpar->next()) ||
- startpar->next()->empty()) {
-#warning This is suspect. (Lgb)
- // When doing this merge we must know if the par really
- // belongs to an inset, and if it does then we have to use
- // the insets paragraphs, and not the buffers. (Lgb)
- mergeParagraph(buffer->params, buffer->paragraphs, startpar);
+ if (all_erased &&
+ (startpit->hasSameLayout(*boost::next(startpit)) ||
+ boost::next(startpit)->empty())) {
+ mergeParagraph(params, pars, startpit);
// this because endpar gets deleted here!
- endpar = startpar;
+ endpit = startpit;
+ endpos = startpos;
}
- return true;
+ return PitPosPair(endpit, endpos);
+
}
-bool CutAndPaste::copySelection(Paragraph * startpar, Paragraph * endpar,
+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)
{
- if (!startpar || (start > startpar->size()))
- return false;
+ BOOST_ASSERT(0 <= start && start <= startpit->size());
+ BOOST_ASSERT(0 <= end && end <= endpit->size());
+ BOOST_ASSERT(startpit != endpit || start <= end);
- paragraphs.clear();
+ ParagraphList paragraphs;
- textclass = tc;
+ // Clone the paragraphs within the selection.
+ ParagraphList::iterator postend = boost::next(endpit);
- if (!endpar || startpar == endpar) {
- // only within one paragraph
- ParagraphList::iterator buf =
- paragraphs.insert(paragraphs.begin(), new Paragraph);
+ paragraphs.assign(startpit, postend);
+ for_each(paragraphs.begin(), paragraphs.end(), resetOwnerAndChanges());
- buf->layout(startpar->layout());
- pos_type i = start;
- if (end > startpar->size())
- end = startpar->size();
- for (; i < end; ++i) {
- startpar->copyIntoMinibuffer(*current_view->buffer(), i);
- buf->insertFromMinibuffer(buf->size());
- }
- } else {
- // copy more than one paragraph
- // clone the paragraphs within the selection
- Paragraph * tmppar = startpar;
-
- while (tmppar != endpar) {
- Paragraph * newpar = new Paragraph(*tmppar, false);
- // reset change info
- newpar->cleanChanges();
- newpar->setInsetOwner(0);
-
- paragraphs.push_back(newpar);
- tmppar = tmppar->next();
- }
+ // 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));
- // The first paragraph is too big.
- Paragraph & front = paragraphs.front();
- pos_type tmpi2 = start;
- for (; tmpi2; --tmpi2)
- front.erase(0);
-
- // Now last paragraph is too big, delete all after end.
- Paragraph & back = paragraphs.back();
- tmpi2 = end;
- while (back.size() > tmpi2) {
- back.erase(back.size() - 1);
- }
- }
return true;
}
-bool CutAndPaste::pasteSelection(Paragraph ** par, Paragraph ** endpar,
- int & pos, textclass_type tc)
+pair<PitPosPair, ParagraphList::iterator>
+CutAndPaste::pasteSelection(Buffer const & buffer,
+ ParagraphList & pars,
+ ParagraphList::iterator pit, int pos,
+ textclass_type tc,
+ ErrorList & errorlist)
{
- if (!checkPastePossible())
- return false;
+ return pasteSelection(buffer, pars, pit, pos, tc, 0, errorlist);
+}
- if (pos > (*par)->size())
- pos = (*par)->size();
- // many 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())
+ return make_pair(PitPosPair(pit, pos), pit);
- // make a copy of the simple cut_buffer
-#if 1
- ParagraphList::iterator it = paragraphs.begin();
+ BOOST_ASSERT (pos <= pit->size());
- ParagraphList simple_cut_clone;
- simple_cut_clone.insert(simple_cut_clone.begin(),
- new Paragraph(*it, false));
+ // Make a copy of the CaP paragraphs.
+ ParagraphList simple_cut_clone = cuts[cut_index].first;
+ textclass_type const textclass = cuts[cut_index].second;
- ParagraphList::iterator end = paragraphs.end();
- while (boost::next(it) != end) {
- ++it;
- simple_cut_clone.insert(simple_cut_clone.end(),
- new Paragraph(*it, false));
- }
-#else
- // Later we want it done like this:
- ParagraphList simple_cut_clone(paragraphs.begin(),
- paragraphs.end());
-#endif
- // now remove all out of the buffer which is NOT allowed in the
- // new environment and set also another font if that is required
- ParagraphList::iterator tmpbuf = paragraphs.begin();
- int depth_delta = (*par)->params().depth() - tmpbuf->params().depth();
- // Temporary set *par as previous of tmpbuf as we might have
- // to realize the font.
- tmpbuf->previous(*par);
+ // Now remove all out of the pars which is NOT allowed in the
+ // new environment and set also another font if that is required.
+
+ // Make sure there is no class difference.
+ SwitchLayoutsBetweenClasses(textclass, tc, simple_cut_clone,
+ errorlist);
- // make sure there is no class difference
- SwitchLayoutsBetweenClasses(textclass, tc, &*tmpbuf,
- current_view->buffer()->params);
+ ParagraphList::iterator tmpbuf = simple_cut_clone.begin();
+ int depth_delta = pit->params().depth() - tmpbuf->params().depth();
- Paragraph::depth_type max_depth = (*par)->getMaxDepthAfter();
+ Paragraph::depth_type max_depth = pit->getMaxDepthAfter();
- while (tmpbuf != paragraphs.end()) {
+ for (; tmpbuf != simple_cut_clone.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
// at level 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.
+
+ // Set the right depth so that we are not too deep or shallow.
tmpbuf->params().depth(tmpbuf->params().depth() + depth_delta);
if (tmpbuf->params().depth() > max_depth)
tmpbuf->params().depth(max_depth);
- // only set this from the 2nd on as the 2nd depends for maxDepth
- // still on *par
- if (tmpbuf->previous() != (*par))
+
+ // Only set this from the 2nd on as the 2nd depends
+ // for maxDepth still on pit.
+ if (tmpbuf != simple_cut_clone.begin())
max_depth = tmpbuf->getMaxDepthAfter();
- // set the inset owner of this paragraph
- tmpbuf->setInsetOwner((*par)->inInset());
+
+ // Set the inset owner of this paragraph.
+ tmpbuf->setInsetOwner(pit->inInset());
for (pos_type i = 0; i < tmpbuf->size(); ++i) {
if (tmpbuf->getChar(i) == Paragraph::META_INSET) {
- if (!(*par)->insetAllowed(tmpbuf->getInset(i)->lyxCode())) {
+ if (!pit->insetAllowed(tmpbuf->getInset(i)->lyxCode())) {
tmpbuf->erase(i--);
}
} else {
- LyXFont f1 = tmpbuf->getFont(current_view->buffer()->params, i, outerFont(tmpbuf, current_view->buffer()->paragraphs));
+ LyXFont f1 = tmpbuf->getFont(buffer.params(), i, outerFont(pit, pars));
LyXFont f2 = f1;
- if (!(*par)->checkInsertChar(f1)) {
+ if (!pit->checkInsertChar(f1)) {
tmpbuf->erase(i--);
} else if (f1 != f2) {
tmpbuf->setFont(i, f1);
}
}
}
- tmpbuf = tmpbuf->next();
}
- // now reset it to 0
- paragraphs.begin()->previous(0);
-
- // make the buf exactly the same layout than
- // the cursor paragraph
- paragraphs.begin()->makeSameLayout(*par);
+ // 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
+ ParIterator fpit(simple_cut_clone.begin(), simple_cut_clone);
+ ParIterator fend(simple_cut_clone.end(), simple_cut_clone);
+
+ for (; fpit != fend; ++fpit) {
+ InsetList::iterator lit = fpit->insetlist.begin();
+ InsetList::iterator eit = fpit->insetlist.end();
+
+ for (; lit != eit; ++lit) {
+ switch (lit->inset->lyxCode()) {
+ case InsetOld::TABULAR_CODE: {
+ InsetTabular * it = static_cast<InsetTabular*>(lit->inset);
+ it->buffer(const_cast<Buffer*>(&buffer));
+ break;
+ }
- // find the end of the buffer
- ParagraphList::iterator lastbuffer = paragraphs.begin();
- while (boost::next(lastbuffer) != paragraphs.end())
- ++lastbuffer;
+ default:
+ break; // nothing
+ }
+ }
+ }
bool paste_the_end = false;
- // open the paragraph for inserting the buf
- // if necessary
- if (((*par)->size() > pos) || !(*par)->next()) {
- breakParagraphConservative(
- current_view->buffer()->params, current_view->buffer()->paragraphs, *par, 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;
}
- // set the end for redoing later
- *endpar = (*par)->next()->next();
-
- // paste it!
- lastbuffer->next((*par)->next());
- (*par)->next()->previous(&*lastbuffer);
-
- (*par)->next(&*paragraphs.begin());
- paragraphs.begin()->previous(*par);
-
- if ((*par)->next() == lastbuffer)
- lastbuffer = *par;
-
- mergeParagraph(current_view->buffer()->params,
- current_view->buffer()->paragraphs, *par);
- // store the new cursor position
- *par = &*lastbuffer;
- pos = lastbuffer->size();
- // maybe some pasting
- if (lastbuffer->next() && paste_the_end) {
- if (lastbuffer->next()->hasSameLayout(&*lastbuffer)) {
- mergeParagraph(current_view->buffer()->params,
- current_view->buffer()->paragraphs, lastbuffer);
- } else if (!lastbuffer->next()->size()) {
- lastbuffer->next()->makeSameLayout(&*lastbuffer);
- mergeParagraph(current_view->buffer()->params, current_view->buffer()->paragraphs, lastbuffer);
- } else if (!lastbuffer->size()) {
- lastbuffer->makeSameLayout(lastbuffer->next());
- mergeParagraph(current_view->buffer()->params,
- current_view->buffer()->paragraphs, lastbuffer);
+
+ // Set the end for redoing later.
+ ParagraphList::iterator endpit = boost::next(boost::next(pit));
+
+ // Paste it!
+
+ ParagraphList::iterator past_pit = boost::next(pit);
+ pars.splice(past_pit, simple_cut_clone);
+ ParagraphList::iterator last_paste = boost::prior(past_pit);
+
+ // If we only inserted one paragraph.
+ if (boost::next(pit) == last_paste)
+ last_paste = pit;
+
+ mergeParagraph(buffer.params(), pars, pit);
+
+ // Store the new cursor position.
+ pit = last_paste;
+ pos = last_paste->size();
+
+ // Maybe some pasting.
+ 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);
} else
- lastbuffer->next()->stripLeadingSpaces();
+ boost::next(last_paste)->stripLeadingSpaces();
}
- // restore the simple cut buffer
- paragraphs = simple_cut_clone;
- return true;
+ return make_pair(PitPosPair(pit, pos), endpit);
}
int CutAndPaste::nrOfParagraphs()
{
- return paragraphs.size();
+ return cuts.empty() ? 0 : cuts[0].first.size();
}
int CutAndPaste::SwitchLayoutsBetweenClasses(textclass_type c1,
textclass_type c2,
- Paragraph * par,
- BufferParams const & /*bparams*/)
+ ParagraphList & pars,
+ ErrorList & errorlist)
{
+ BOOST_ASSERT(!pars.empty());
+
int ret = 0;
- if (!par || c1 == c2)
+ if (c1 == c2)
return ret;
LyXTextClass const & tclass1 = textclasslist[c1];
LyXTextClass const & tclass2 = textclasslist[c2];
- ParIterator end = ParIterator();
- for (ParIterator it = ParIterator(par); it != end; ++it) {
- par = *it;
- string const name = par->layout()->name();
+ ParIterator end = ParIterator(pars.end(), pars);
+ for (ParIterator it = ParIterator(pars.begin(), pars); it != end; ++it) {
+ string const name = it->layout()->name();
bool hasLayout = tclass2.hasLayout(name);
if (hasLayout)
- par->layout(tclass2[name]);
+ it->layout(tclass2[name]);
else
- par->layout(tclass2.defaultLayout());
+ it->layout(tclass2.defaultLayout());
if (!hasLayout && name != tclass1.defaultLayoutName()) {
++ret;
-#if USE_BOOST_FORMAT
- boost::format fmt(_("Layout had to be changed from\n"
- "%1$s to %2$s\n"
- "because of class conversion from\n"
- "%3$s to %4$s"));
- fmt % name
- % par->layout()->name()
- % tclass1.name()
- % tclass2.name();
-
- string const s = fmt.str();
-#else
- string const s = _("Layout had to be changed from\n")
- + name + _(" to ")
- + par->layout()->name()
- + _("\nbecause of class conversion from\n")
- + tclass1.name() + _(" to ")
- + tclass2.name();
-#endif
- freezeUndo();
- InsetError * new_inset = new InsetError(s);
- LyXText * txt = current_view->getLyXText();
- LyXCursor cur = txt->cursor;
- txt->setCursorIntern(par, 0);
- txt->insertInset(new_inset);
- txt->fullRebreak();
- txt->setCursorIntern(cur.par(), cur.pos());
- unFreezeUndo();
+ 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());
+ // To warn the user that something had to be done.
+ errorlist.push_back(ErrorItem("Changed Layout", s,
+ it->id(), 0,
+ it->size()));
}
}
return ret;
bool CutAndPaste::checkPastePossible()
{
- return !paragraphs.empty();
+ return !cuts.empty() && !cuts[0].first.empty();
}