3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
6 * \author Alfredo Braunstein
7 * \author Lars Gullik Bjønnes
10 * \author Jürgen Vigna
12 * Full author contact details are available in file CREDITS.
17 #include "BufferView.h"
20 #include "buffer_funcs.h"
21 #include "bufferlist.h"
22 #include "bufferparams.h"
23 #include "coordcache.h"
24 #include "CutAndPaste.h"
26 #include "dispatchresult.h"
27 #include "errorlist.h"
29 #include "FloatList.h"
30 #include "funcrequest.h"
31 #include "FuncStatus.h"
34 #include "insetiterator.h"
36 #include "LaTeXFeatures.h"
37 #include "lyx_cb.h" // added for Dispatch functions
41 #include "lyxlayout.h"
43 #include "lyxtextclass.h"
46 #include "paragraph.h"
47 #include "paragraph_funcs.h"
48 #include "ParagraphParameters.h"
49 #include "pariterator.h"
54 #include "WordLangTuple.h"
55 #include "metricsinfo.h"
57 #include "insets/insetbibtex.h"
58 #include "insets/insetcommand.h" // ChangeRefs
59 #include "insets/insetref.h"
60 #include "insets/insettext.h"
62 #include "frontends/Alert.h"
63 #include "frontends/FileDialog.h"
64 #include "frontends/FontMetrics.h"
66 #include "graphics/Previews.h"
68 #include "support/convert.h"
69 #include "support/filefilterlist.h"
70 #include "support/filetools.h"
71 #include "support/package.h"
72 #include "support/types.h"
74 #include <boost/bind.hpp>
75 #include <boost/current_function.hpp>
83 using support::addPath;
84 using support::bformat;
85 using support::FileFilterList;
86 using support::fileSearch;
87 using support::isDirWriteable;
88 using support::makeDisplayPath;
89 using support::makeAbsPath;
90 using support::package;
94 using std::istringstream;
98 using std::mem_fun_ref;
102 namespace Alert = frontend::Alert;
106 unsigned int const saved_positions_num = 20;
109 /// Return an inset of this class if it exists at the current cursor position
111 T * getInsetByCode(LCursor & cur, InsetBase::Code code)
114 DocIterator it = cur;
115 if (it.nextInset() &&
116 it.nextInset()->lyxCode() == code) {
117 inset = static_cast<T*>(it.nextInset());
125 BufferView::BufferView()
126 : width_(0), height_(0), buffer_(0), wh_(0),
128 multiparsel_cache_(false), anchor_ref_(0), offset_ref_(0),
131 xsel_cache_.set = false;
133 saved_positions.resize(saved_positions_num);
134 // load saved bookmarks
135 BookmarksSection::BookmarkList & bmList = LyX::ref().session().bookmarks().load();
136 for (BookmarksSection::BookmarkList::iterator bm = bmList.begin();
137 bm != bmList.end(); ++bm)
138 if (bm->get<0>() < saved_positions_num)
139 saved_positions[bm->get<0>()] = Position( bm->get<1>(), bm->get<2>(), bm->get<3>() );
140 // and then clear them
143 intl_->initKeyMapper(lyxrc.use_kbmap);
147 BufferView::~BufferView()
152 Buffer * BufferView::buffer() const
158 void BufferView::setBuffer(Buffer * b)
160 lyxerr[Debug::INFO] << BOOST_CURRENT_FUNCTION
161 << "[ b = " << b << "]" << endl;
164 // Save the actual cursor position and anchor inside the
165 // buffer so that it can be restored in case we rechange
166 // to this buffer later on.
167 buffer_->saveCursor(cursor_.selectionBegin(),
168 cursor_.selectionEnd());
169 // current buffer is going to be switched-off, save cursor pos
170 LyX::ref().session().lastFilePos().save(buffer_->fileName(),
171 boost::tie(cursor_.pit(), cursor_.pos()) );
174 // If we're quitting lyx, don't bother updating stuff
180 // If we are closing current buffer, switch to the first in
183 lyxerr[Debug::INFO] << BOOST_CURRENT_FUNCTION
184 << " No Buffer!" << endl;
185 // We are closing the buffer, use the first buffer as current
186 buffer_ = theBufferList().first();
188 // Set current buffer
193 cursor_ = LCursor(*this);
198 lyxerr[Debug::INFO] << BOOST_CURRENT_FUNCTION
199 << "Buffer addr: " << buffer_ << endl;
200 cursor_.push(buffer_->inset());
201 cursor_.resetAnchor();
202 buffer_->text().init(this);
203 buffer_->text().setCurrentFont(cursor_);
204 if (buffer_->getCursor().size() > 0 &&
205 buffer_->getAnchor().size() > 0)
207 cursor_.setCursor(buffer_->getAnchor().asDocIterator(&(buffer_->inset())));
208 cursor_.resetAnchor();
209 cursor_.setCursor(buffer_->getCursor().asDocIterator(&(buffer_->inset())));
210 cursor_.setSelection();
216 if (buffer_ && graphics::Previews::status() != LyXRC::PREVIEW_OFF)
217 graphics::Previews::get().generateBufferPreviews(*buffer_);
221 bool BufferView::loadLyXFile(string const & filename, bool tolastfiles)
223 // Get absolute path of file and add ".lyx"
224 // to the filename if necessary
225 string s = fileSearch(string(), filename, "lyx");
227 bool const found = !s.empty();
232 // File already open?
233 if (theBufferList().exists(s)) {
234 docstring const file = makeDisplayPath(s, 20);
235 docstring text = bformat(_("The document %1$s is already "
236 "loaded.\n\nDo you want to revert "
237 "to the saved version?"), file);
238 int const ret = Alert::prompt(_("Revert to saved document?"),
239 text, 0, 1, _("&Revert"), _("&Switch to document"));
242 setBuffer(theBufferList().getBuffer(s));
245 // FIXME: should be LFUN_REVERT
246 if (!theBufferList().close(theBufferList().getBuffer(s), false))
248 // Fall through to new load. (Asger)
255 b = theBufferList().newBuffer(s);
256 if (!lyx::loadLyXFile(b, s)) {
257 theBufferList().release(b);
261 docstring text = bformat(_("The document %1$s does not yet "
262 "exist.\n\nDo you want to create "
263 "a new document?"), from_utf8(s));
264 int const ret = Alert::prompt(_("Create new document?"),
265 text, 0, 1, _("&Create"), _("Cancel"));
268 b = newFile(s, string(), true);
276 // Send the "errors" signal in case of parsing errors
279 // scroll to the position when the file was last closed
280 if (lyxrc.use_lastfilepos) {
283 boost::tie(pit, pos) = LyX::ref().session().lastFilePos().load(s);
284 // I am not sure how to separate the following part to a function
285 // so I will leave this to Lars.
287 // check pit since the document may be externally changed.
288 if ( static_cast<size_t>(pit) < b->paragraphs().size() ) {
289 ParIterator it = b->par_iterator_begin();
290 ParIterator const end = b->par_iterator_end();
291 for (; it != end; ++it)
292 if (it.pit() == pit) {
293 // restored pos may be bigger than it->size
294 setCursor(makeDocIterator(it, min(pos, it->size())));
295 update(Update::FitCursor);
302 LyX::ref().session().lastFiles().add(b->fileName());
308 void BufferView::reload()
310 string const fn = buffer_->fileName();
311 if (theBufferList().close(buffer_, false))
316 void BufferView::resize()
321 lyxerr[Debug::DEBUG] << BOOST_CURRENT_FUNCTION << endl;
323 buffer_->text().init(this);
329 bool BufferView::fitCursor()
331 if (bv_funcs::status(this, cursor_) == bv_funcs::CUR_INSIDE) {
332 frontend::FontMetrics const & fm =
333 theFontMetrics(cursor_.getFont());
334 int const asc = fm.maxAscent();
335 int const des = fm.maxDescent();
336 Point const p = bv_funcs::getPos(*this, cursor_, cursor_.boundary());
337 if (p.y_ - asc >= 0 && p.y_ + des < height_)
345 bool BufferView::multiParSel()
347 if (!cursor_.selection())
349 bool ret = multiparsel_cache_;
350 multiparsel_cache_ = cursor_.selBegin().pit() != cursor_.selEnd().pit();
351 // Either this, or previous selection spans paragraphs
352 return ret || multiparsel_cache_;
356 bool BufferView::update(Update::flags flags)
358 // This is close to a hot-path.
359 if (lyxerr.debugging(Debug::DEBUG)) {
361 << BOOST_CURRENT_FUNCTION
362 << "[fitcursor = " << (flags & Update::FitCursor)
363 << ", forceupdate = " << (flags & Update::Force)
364 << ", singlepar = " << (flags & Update::SinglePar)
365 << "] buffer: " << buffer_ << endl;
368 // Check needed to survive LyX startup
372 lyxerr[Debug::WORKAREA] << "BufferView::update" << std::endl;
374 // Update macro store
375 buffer_->buildMacros();
377 // First drawing step
378 updateMetrics(flags & Update::SinglePar);
380 // The second drawing step is done in WorkArea::redraw() if needed.
381 bool const need_second_step =
382 (flags & (Update::Force | Update::FitCursor | Update::MultiParSel))
383 && (fitCursor() || multiParSel());
385 return need_second_step;
389 void BufferView::updateScrollbar()
392 lyxerr[Debug::DEBUG] << BOOST_CURRENT_FUNCTION
393 << " no text in updateScrollbar" << endl;
394 scrollbarParameters_.reset();
398 LyXText & t = buffer_->text();
399 int const parsize = int(t.paragraphs().size() - 1);
400 if (anchor_ref_ > parsize) {
401 anchor_ref_ = parsize;
406 << BOOST_CURRENT_FUNCTION
407 << " Updating scrollbar: height: " << t.paragraphs().size()
408 << " curr par: " << cursor_.bottom().pit()
409 << " default height " << defaultRowHeight() << endl;
411 // It would be better to fix the scrollbar to understand
412 // values in [0..1] and divide everything by wh
414 // estimated average paragraph height:
417 int h = t.getPar(anchor_ref_).height();
419 // Normalize anchor/offset (MV):
420 while (offset_ref_ > h && anchor_ref_ < parsize) {
423 h = t.getPar(anchor_ref_).height();
425 // Look at paragraph heights on-screen
428 for (pit_type pit = anchor_ref_; pit <= parsize; ++pit) {
431 int const h2 = t.getPar(pit).height();
437 int const hav = sumh / nh;
438 // More realistic average paragraph height
443 scrollbarParameters_.height = (parsize + 1) * wh_;
444 scrollbarParameters_.position = anchor_ref_ * wh_ + int(offset_ref_ * wh_ / float(h));
445 scrollbarParameters_.lineScrollHeight = int(wh_ * defaultRowHeight() / float(h));
449 ScrollbarParameters const & BufferView::scrollbarParameters() const
451 return scrollbarParameters_;
455 void BufferView::scrollDocView(int value)
457 lyxerr[Debug::GUI] << BOOST_CURRENT_FUNCTION
458 << "[ value = " << value << "]" << endl;
463 LyXText & t = buffer_->text();
465 float const bar = value / float(wh_ * t.paragraphs().size());
467 anchor_ref_ = int(bar * t.paragraphs().size());
468 if (anchor_ref_ > int(t.paragraphs().size()) - 1)
469 anchor_ref_ = int(t.paragraphs().size()) - 1;
470 t.redoParagraph(*this, anchor_ref_);
471 int const h = t.getPar(anchor_ref_).height();
472 offset_ref_ = int((bar * t.paragraphs().size() - anchor_ref_) * h);
476 void BufferView::setCursorFromScrollbar()
478 LyXText & t = buffer_->text();
480 int const height = 2 * defaultRowHeight();
481 int const first = height;
482 int const last = height_ - height;
483 LCursor & cur = cursor_;
485 bv_funcs::CurStatus st = bv_funcs::status(this, cur);
488 case bv_funcs::CUR_ABOVE:
489 t.setCursorFromCoordinates(cur, 0, first);
490 cur.clearSelection();
492 case bv_funcs::CUR_BELOW:
493 t.setCursorFromCoordinates(cur, 0, last);
494 cur.clearSelection();
496 case bv_funcs::CUR_INSIDE:
497 int const y = bv_funcs::getPos(*this, cur, cur.boundary()).y_;
498 int const newy = min(last, max(y, first));
500 cur.reset(buffer_->inset());
501 t.setCursorFromCoordinates(cur, 0, newy);
507 Change const BufferView::getCurrentChange() const
509 if (!cursor_.selection())
510 return Change(Change::UNCHANGED);
512 DocIterator dit = cursor_.selectionBegin();
513 return dit.paragraph().lookupChange(dit.pos());
517 void BufferView::savePosition(unsigned int i)
519 if (i >= saved_positions_num)
521 BOOST_ASSERT(cursor_.inTexted());
522 saved_positions[i] = Position(buffer_->fileName(),
523 cursor_.paragraph().id(),
526 // emit message signal.
527 message(bformat(_("Saved bookmark %1$d"), i));
531 void BufferView::restorePosition(unsigned int i)
533 if (i >= saved_positions_num)
536 string const fname = saved_positions[i].filename;
538 cursor_.clearSelection();
540 if (fname != buffer_->fileName()) {
542 if (theBufferList().exists(fname))
543 b = theBufferList().getBuffer(fname);
545 b = theBufferList().newBuffer(fname);
546 // Don't ask, just load it
547 lyx::loadLyXFile(b, fname);
553 ParIterator par = buffer_->getParFromID(saved_positions[i].par_id);
554 if (par == buffer_->par_iterator_end())
557 setCursor(makeDocIterator(par, min(par->size(), saved_positions[i].par_pos)));
560 // emit message signal.
561 message(bformat(_("Moved to bookmark %1$d"), i));
565 bool BufferView::isSavedPosition(unsigned int i)
567 return i < saved_positions_num && !saved_positions[i].filename.empty();
570 void BufferView::saveSavedPositions()
572 // save bookmarks. It is better to use the pit interface
573 // but I do not know how to effectively convert between
575 for (unsigned int i=1; i < saved_positions_num; ++i) {
576 if ( isSavedPosition(i) )
577 LyX::ref().session().bookmarks().save( boost::tie(
579 saved_positions[i].filename,
580 saved_positions[i].par_id,
581 saved_positions[i].par_pos) );
585 void BufferView::switchKeyMap()
587 if (!lyxrc.rtl_support)
590 if (getLyXText()->real_current_font.isRightToLeft()) {
591 if (intl_->keymap == Intl::PRIMARY)
594 if (intl_->keymap == Intl::SECONDARY)
600 int BufferView::workWidth() const
606 void BufferView::center()
608 CursorSlice & bot = cursor_.bottom();
609 pit_type const pit = bot.pit();
610 bot.text()->redoParagraph(*this, pit);
611 Paragraph const & par = bot.text()->paragraphs()[pit];
613 offset_ref_ = bv_funcs::coordOffset(*this, cursor_, cursor_.boundary()).y_
614 + par.ascent() - height_ / 2;
618 FuncStatus BufferView::getStatus(FuncRequest const & cmd)
622 switch (cmd.action) {
625 flag.enabled(!buffer_->undostack().empty());
628 flag.enabled(!buffer_->redostack().empty());
630 case LFUN_FILE_INSERT:
631 case LFUN_FILE_INSERT_ASCII_PARA:
632 case LFUN_FILE_INSERT_ASCII:
633 case LFUN_BOOKMARK_SAVE:
634 // FIXME: Actually, these LFUNS should be moved to LyXText
635 flag.enabled(cursor_.inTexted());
637 case LFUN_FONT_STATE:
638 case LFUN_LABEL_INSERT:
639 case LFUN_PARAGRAPH_GOTO:
640 // FIXME handle non-trivially
641 case LFUN_OUTLINE_UP:
642 case LFUN_OUTLINE_DOWN:
643 case LFUN_OUTLINE_IN:
644 case LFUN_OUTLINE_OUT:
646 case LFUN_REFERENCE_NEXT:
648 case LFUN_WORD_REPLACE:
651 case LFUN_MARK_TOGGLE:
652 case LFUN_SCREEN_RECENTER:
653 case LFUN_BIBTEX_DATABASE_ADD:
654 case LFUN_BIBTEX_DATABASE_DEL:
655 case LFUN_WORDS_COUNT:
656 case LFUN_NEXT_INSET_TOGGLE:
660 case LFUN_LABEL_GOTO: {
661 flag.enabled(!cmd.argument().empty()
662 || getInsetByCode<InsetRef>(cursor_, InsetBase::REF_CODE));
666 case LFUN_BOOKMARK_GOTO:
667 flag.enabled(isSavedPosition(convert<unsigned int>(to_utf8(cmd.argument()))));
670 case LFUN_CHANGES_TRACK:
672 flag.setOnOff(buffer_->params().trackChanges);
675 case LFUN_CHANGES_OUTPUT: {
676 OutputParams runparams;
677 LaTeXFeatures features(*buffer_, buffer_->params(), runparams);
678 flag.enabled(buffer_ && features.isAvailable("dvipost"));
679 flag.setOnOff(buffer_->params().outputChanges);
683 case LFUN_CHANGES_MERGE:
684 case LFUN_CHANGE_NEXT:
685 case LFUN_ALL_CHANGES_ACCEPT:
686 case LFUN_ALL_CHANGES_REJECT:
687 flag.enabled(buffer_); // FIXME: Change tracking (MG)
690 case LFUN_BUFFER_TOGGLE_COMPRESSION: {
691 flag.setOnOff(buffer_->params().compressed);
703 bool BufferView::dispatch(FuncRequest const & cmd)
705 //lyxerr << BOOST_CURRENT_FUNCTION
706 // << [ cmd = " << cmd << "]" << endl;
708 // Make sure that the cached BufferView is correct.
709 lyxerr[Debug::ACTION] << BOOST_CURRENT_FUNCTION
710 << " action[" << cmd.action << ']'
711 << " arg[" << to_utf8(cmd.argument()) << ']'
712 << " x[" << cmd.x << ']'
713 << " y[" << cmd.y << ']'
714 << " button[" << cmd.button() << ']'
717 LCursor & cur = cursor_;
719 switch (cmd.action) {
723 cur.message(_("Undo"));
724 cur.clearSelection();
725 if (!textUndo(*this))
726 cur.message(_("No further undo information"));
734 cur.message(_("Redo"));
735 cur.clearSelection();
736 if (!textRedo(*this))
737 cur.message(_("No further redo information"));
743 case LFUN_FILE_INSERT:
744 // FIXME: We don't know the encoding of filenames
745 menuInsertLyXFile(to_utf8(cmd.argument()));
748 case LFUN_FILE_INSERT_ASCII_PARA:
749 // FIXME: We don't know the encoding of filenames
750 insertAsciiFile(this, to_utf8(cmd.argument()), true);
753 case LFUN_FILE_INSERT_ASCII:
754 // FIXME: We don't know the encoding of filenames
755 insertAsciiFile(this, to_utf8(cmd.argument()), false);
758 case LFUN_FONT_STATE:
759 cur.message(from_utf8(cur.currentState()));
762 case LFUN_BOOKMARK_SAVE:
763 savePosition(convert<unsigned int>(to_utf8(cmd.argument())));
766 case LFUN_BOOKMARK_GOTO:
767 restorePosition(convert<unsigned int>(to_utf8(cmd.argument())));
770 case LFUN_LABEL_GOTO: {
771 docstring label = cmd.argument();
774 getInsetByCode<InsetRef>(cursor_,
775 InsetBase::REF_CODE);
777 label = inset->getParam("reference");
787 case LFUN_PARAGRAPH_GOTO: {
788 int const id = convert<int>(to_utf8(cmd.argument()));
789 ParIterator par = buffer_->getParFromID(id);
790 if (par == buffer_->par_iterator_end()) {
791 lyxerr[Debug::INFO] << "No matching paragraph found! ["
792 << id << ']' << endl;
795 lyxerr[Debug::INFO] << "Paragraph " << par->id()
796 << " found." << endl;
800 setCursor(makeDocIterator(par, 0));
807 case LFUN_OUTLINE_UP:
808 toc::outline(toc::Up, cursor_);
809 cursor_.text()->setCursor(cursor_, cursor_.pit(), 0);
810 updateLabels(*buffer_);
812 case LFUN_OUTLINE_DOWN:
813 toc::outline(toc::Down, cursor_);
814 cursor_.text()->setCursor(cursor_, cursor_.pit(), 0);
815 updateLabels(*buffer_);
817 case LFUN_OUTLINE_IN:
818 toc::outline(toc::In, cursor_);
819 updateLabels(*buffer_);
821 case LFUN_OUTLINE_OUT:
822 toc::outline(toc::Out, cursor_);
823 updateLabels(*buffer_);
827 bv_funcs::gotoInset(this, InsetBase::NOTE_CODE, false);
830 case LFUN_REFERENCE_NEXT: {
831 vector<InsetBase_code> tmp;
832 tmp.push_back(InsetBase::LABEL_CODE);
833 tmp.push_back(InsetBase::REF_CODE);
834 bv_funcs::gotoInset(this, tmp, true);
838 case LFUN_CHANGES_TRACK:
839 buffer_->params().trackChanges = !buffer_->params().trackChanges;
842 case LFUN_CHANGES_OUTPUT: {
843 buffer_->params().outputChanges = !buffer_->params().outputChanges;
847 case LFUN_CHANGE_NEXT:
848 findNextChange(this);
851 case LFUN_CHANGES_MERGE:
852 if (findNextChange(this))
853 showDialog("changes");
856 case LFUN_ALL_CHANGES_ACCEPT: {
857 cursor_.reset(buffer_->inset());
859 #warning FIXME changes
861 while (findNextChange(this))
862 getLyXText()->acceptChange(cursor_);
867 case LFUN_ALL_CHANGES_REJECT: {
868 cursor_.reset(buffer_->inset());
870 #warning FIXME changes
872 while (findNextChange(this))
873 getLyXText()->rejectChange(cursor_);
881 case LFUN_WORD_REPLACE:
886 cur.clearSelection();
888 cur.message(from_utf8(N_("Mark off")));
892 cur.clearSelection();
895 cur.message(from_utf8(N_("Mark on")));
898 case LFUN_MARK_TOGGLE:
899 cur.clearSelection();
902 cur.message(from_utf8(N_("Mark removed")));
905 cur.message(from_utf8(N_("Mark set")));
910 case LFUN_SCREEN_RECENTER:
914 case LFUN_BIBTEX_DATABASE_ADD: {
915 LCursor tmpcur = cursor_;
916 bv_funcs::findInset(tmpcur, InsetBase::BIBTEX_CODE, false);
917 InsetBibtex * inset = getInsetByCode<InsetBibtex>(tmpcur,
918 InsetBase::BIBTEX_CODE);
920 if (inset->addDatabase(to_utf8(cmd.argument())))
921 buffer_->updateBibfilesCache();
926 case LFUN_BIBTEX_DATABASE_DEL: {
927 LCursor tmpcur = cursor_;
928 bv_funcs::findInset(tmpcur, InsetBase::BIBTEX_CODE, false);
929 InsetBibtex * inset = getInsetByCode<InsetBibtex>(tmpcur,
930 InsetBase::BIBTEX_CODE);
932 if (inset->delDatabase(to_utf8(cmd.argument())))
933 buffer_->updateBibfilesCache();
938 case LFUN_WORDS_COUNT: {
939 DocIterator from, to;
940 if (cur.selection()) {
941 from = cur.selectionBegin();
942 to = cur.selectionEnd();
944 from = doc_iterator_begin(buffer_->inset());
945 to = doc_iterator_end(buffer_->inset());
947 int const count = countWords(from, to);
951 message = bformat(_("%1$d words in selection."),
954 message = bformat(_("%1$d words in document."),
959 message = _("One word in selection.");
961 message = _("One word in document.");
964 Alert::information(_("Count words"), message);
968 case LFUN_BUFFER_TOGGLE_COMPRESSION:
969 // turn compression on/off
970 buffer_->params().compressed = !buffer_->params().compressed;
973 case LFUN_NEXT_INSET_TOGGLE: {
974 // this is the real function we want to invoke
975 FuncRequest tmpcmd = FuncRequest(LFUN_INSET_TOGGLE, cmd.origin);
976 // if there is an inset at cursor, see whether it
978 InsetBase * inset = cur.nextInset();
979 if (inset && inset->isActive()) {
980 LCursor tmpcur = cur;
981 tmpcur.pushLeft(*inset);
982 inset->dispatch(tmpcur, tmpcmd);
983 if (tmpcur.result().dispatched()) {
987 // if it did not work, try the underlying inset.
988 if (!cur.result().dispatched())
989 cur.dispatch(tmpcmd);
991 if (cur.result().dispatched())
992 cur.clearSelection();
1005 docstring const BufferView::requestSelection()
1010 LCursor & cur = cursor_;
1012 if (!cur.selection()) {
1013 xsel_cache_.set = false;
1017 if (!xsel_cache_.set ||
1018 cur.top() != xsel_cache_.cursor ||
1019 cur.anchor_.top() != xsel_cache_.anchor)
1021 xsel_cache_.cursor = cur.top();
1022 xsel_cache_.anchor = cur.anchor_.top();
1023 xsel_cache_.set = cur.selection();
1024 return cur.selectionAsString(false);
1030 void BufferView::clearSelection()
1033 cursor_.clearSelection();
1034 xsel_cache_.set = false;
1039 void BufferView::workAreaResize(int width, int height)
1041 bool const widthChange = width != width_;
1042 bool const heightChange = height != height_;
1044 // Update from work area
1048 if (buffer_ && widthChange) {
1049 // The WorkArea content needs a resize
1053 if (widthChange || heightChange)
1058 bool BufferView::workAreaDispatch(FuncRequest const & cmd0)
1060 //lyxerr << BOOST_CURRENT_FUNCTION << "[ cmd0 " << cmd0 << "]" << endl;
1062 // This is only called for mouse related events including
1063 // LFUN_FILE_OPEN generated by drag-and-drop.
1064 FuncRequest cmd = cmd0;
1070 cur.push(buffer_->inset());
1071 cur.selection() = cursor_.selection();
1073 // Doesn't go through lyxfunc, so we need to update
1074 // the layout choice etc. ourselves
1076 // E.g. Qt mouse press when no buffer
1080 // Either the inset under the cursor or the
1081 // surrounding LyXText will handle this event.
1083 // Build temporary cursor.
1084 cmd.y = min(max(cmd.y, -1), height_);
1085 InsetBase * inset = buffer_->text().editXY(cur, cmd.x, cmd.y);
1086 //lyxerr << BOOST_CURRENT_FUNCTION
1087 // << " * hit inset at tip: " << inset << endl;
1088 //lyxerr << BOOST_CURRENT_FUNCTION
1089 // << " * created temp cursor:" << cur << endl;
1091 // Put anchor at the same position.
1094 // Try to dispatch to an non-editable inset near this position
1095 // via the temp cursor. If the inset wishes to change the real
1096 // cursor it has to do so explicitly by using
1097 // cur.bv().cursor() = cur; (or similar)
1099 inset->dispatch(cur, cmd);
1101 // Now dispatch to the temporary cursor. If the real cursor should
1102 // be modified, the inset's dispatch has to do so explicitly.
1103 if (!cur.result().dispatched())
1106 if (cur.result().dispatched()) {
1107 // Redraw if requested or necessary.
1108 if (cur.result().update())
1109 update(Update::FitCursor | Update::Force);
1111 update(Update::FitCursor | Update::MultiParSel);
1118 void BufferView::scroll(int /*lines*/)
1123 // LyXText const * t = &buffer_->text();
1124 // int const line_height = defaultRowHeight();
1126 // // The new absolute coordinate
1127 // int new_top_y = top_y() + lines * line_height;
1129 // // Restrict to a valid value
1130 // new_top_y = std::min(t->height() - 4 * line_height, new_top_y);
1131 // new_top_y = std::max(0, new_top_y);
1133 // scrollDocView(new_top_y);
1135 // // Update the scrollbar.
1136 // workArea_->setScrollbarParams(t->height(), top_y(), defaultRowHeight());}
1140 void BufferView::setCursorFromRow(int row)
1145 buffer_->texrow().getIdFromRow(row, tmpid, tmppos);
1148 buffer_->text().setCursor(cursor_, 0, 0);
1150 buffer_->text().setCursor(cursor_, buffer_->getParFromID(tmpid).pit(), tmppos);
1154 void BufferView::gotoLabel(docstring const & label)
1156 for (InsetIterator it = inset_iterator_begin(buffer_->inset()); it; ++it) {
1157 vector<docstring> labels;
1158 it->getLabelList(*buffer_, labels);
1159 if (std::find(labels.begin(), labels.end(), label) != labels.end()) {
1168 LyXText * BufferView::getLyXText()
1170 LyXText * text = cursor_.innerText();
1176 LyXText const * BufferView::getLyXText() const
1178 LyXText const * text = cursor_.innerText();
1184 int BufferView::workHeight() const
1190 void BufferView::setCursor(DocIterator const & dit)
1192 size_t const n = dit.depth();
1193 for (size_t i = 0; i < n; ++i)
1194 dit[i].inset().edit(cursor_, true);
1196 cursor_.setCursor(dit);
1197 cursor_.selection() = false;
1201 void BufferView::mouseSetCursor(LCursor & cur)
1203 BOOST_ASSERT(&cur.bv() == this);
1205 // Has the cursor just left the inset?
1206 bool badcursor = false;
1207 if (&cursor_.inset() != &cur.inset())
1208 badcursor = cursor_.inset().notifyCursorLeaves(cursor_);
1210 // do the dEPM magic if needed
1211 // FIXME: move this to InsetText::notifyCursorLeaves?
1212 if (!badcursor && cursor_.inTexted())
1213 cursor_.text()->deleteEmptyParagraphMechanism(cur, cursor_);
1216 cursor_.clearSelection();
1217 cursor_.setTargetX();
1223 void BufferView::putSelectionAt(DocIterator const & cur,
1224 int length, bool backwards)
1226 cursor_.clearSelection();
1232 cursor_.pos() += length;
1233 cursor_.setSelection(cursor_, -length);
1235 cursor_.setSelection(cursor_, length);
1240 LCursor & BufferView::cursor()
1246 LCursor const & BufferView::cursor() const
1252 pit_type BufferView::anchor_ref() const
1258 ViewMetricsInfo const & BufferView::viewMetricsInfo()
1260 return metrics_info_;
1264 void BufferView::updateMetrics(bool singlepar)
1266 // FIXME (Abdel 19/10/2006):
1267 // There's something fishy in tabular. The coord_cache_ is not
1268 // correctly reconstructed when a character is trying to be inserted.
1269 // Not clearing out the coord_cache_ fixes the crash but there is a
1270 // bad side effect: buffer-begin and buffer-end do not update the screen.
1272 // Remove old position cache
1273 coord_cache_.clear();
1275 LyXText & buftext = buffer_->text();
1276 pit_type size = int(buftext.paragraphs().size());
1278 if (anchor_ref_ > int(buftext.paragraphs().size() - 1)) {
1279 anchor_ref_ = int(buftext.paragraphs().size() - 1);
1283 pit_type const pit = anchor_ref_;
1286 size_t const npit = buftext.paragraphs().size();
1288 // Rebreak anchor paragraph. In Single Paragraph mode, rebreak only
1289 // the (main text, not inset!) paragraph containing the cursor.
1290 // (if this paragraph contains insets etc., rebreaking will
1291 // recursively descend)
1292 if (!singlepar || pit == cursor_.bottom().pit())
1293 buftext.redoParagraph(*this, pit);
1294 int y0 = buftext.getPar(pit).ascent() - offset_ref_;
1296 // Redo paragraphs above anchor if necessary; again, in Single Par
1297 // mode, only if we encounter the (main text) one having the cursor.
1299 while (y1 > 0 && pit1 > 0) {
1300 y1 -= buftext.getPar(pit1).ascent();
1302 if (!singlepar || pit1 == cursor_.bottom().pit())
1303 buftext.redoParagraph(*this, pit1);
1304 y1 -= buftext.getPar(pit1).descent();
1308 // Take care of ascent of first line
1309 y1 -= buftext.getPar(pit1).ascent();
1311 // Normalize anchor for next time
1315 // Grey at the beginning is ugly
1316 if (pit1 == 0 && y1 > 0) {
1322 // Redo paragraphs below the anchor if necessary. Single par mode:
1323 // only the one containing the cursor if encountered.
1325 while (y2 < height_ && pit2 < int(npit) - 1) {
1326 y2 += buftext.getPar(pit2).descent();
1328 if (!singlepar || pit2 == cursor_.bottom().pit())
1329 buftext.redoParagraph(*this, pit2);
1330 y2 += buftext.getPar(pit2).ascent();
1333 // Take care of descent of last line
1334 y2 += buftext.getPar(pit2).descent();
1336 // The coordinates of all these paragraphs are correct, cache them
1338 CoordCache::InnerParPosCache & parPos = coord_cache_.parPos()[&buftext];
1339 for (pit_type pit = pit1; pit <= pit2; ++pit) {
1340 Paragraph const & par = buftext.getPar(pit);
1342 parPos[pit] = Point(0, y);
1343 if (singlepar && pit == cursor_.bottom().pit()) {
1344 // In Single Paragraph mode, collect here the
1345 // y1 and y2 of the (one) paragraph the cursor is in
1346 y1 = y - par.ascent();
1347 y2 = y + par.descent();
1353 // collect cursor paragraph iter bounds
1354 pit1 = cursor_.bottom().pit();
1355 pit2 = cursor_.bottom().pit();
1358 lyxerr[Debug::DEBUG]
1359 << BOOST_CURRENT_FUNCTION
1362 << " pit1: " << pit1
1363 << " pit2: " << pit2
1364 << " npit: " << npit
1365 << " singlepar: " << singlepar
1369 metrics_info_ = ViewMetricsInfo(pit1, pit2, y1, y2, singlepar, size);
1371 if (lyxerr.debugging(Debug::WORKAREA)) {
1372 lyxerr[Debug::WORKAREA] << "BufferView::updateMetrics" << endl;
1373 coord_cache_.dump();
1378 void BufferView::menuInsertLyXFile(string const & filenm)
1380 BOOST_ASSERT(cursor_.inTexted());
1381 string filename = filenm;
1383 if (filename.empty()) {
1384 // Launch a file browser
1386 string initpath = lyxrc.document_path;
1389 string const trypath = buffer_->filePath();
1390 // If directory is writeable, use this as default.
1391 if (isDirWriteable(trypath))
1396 FileDialog fileDlg(_("Select LyX document to insert"),
1398 make_pair(_("Documents|#o#O"), from_utf8(lyxrc.document_path)),
1399 make_pair(_("Examples|#E#e"), from_utf8(addPath(package().system_support(), "examples"))));
1401 FileDialog::Result result =
1402 fileDlg.open(from_utf8(initpath),
1403 FileFilterList(_("LyX Documents (*.lyx)")),
1406 if (result.first == FileDialog::Later)
1410 filename = to_utf8(result.second);
1412 // check selected filename
1413 if (filename.empty()) {
1414 // emit message signal.
1415 message(_("Canceled."));
1420 // Get absolute path of file and add ".lyx"
1421 // to the filename if necessary
1422 filename = fileSearch(string(), filename, "lyx");
1424 docstring const disp_fn = makeDisplayPath(filename);
1425 // emit message signal.
1426 message(bformat(_("Inserting document %1$s..."), disp_fn));
1429 Buffer buf("", false);
1430 if (lyx::loadLyXFile(&buf, makeAbsPath(filename))) {
1431 ErrorList & el = buffer_->errorList("Parse");
1432 // Copy the inserted document error list into the current buffer one.
1433 el = buf.errorList("Parse");
1434 cap::pasteParagraphList(cursor_, buf.paragraphs(),
1435 buf.params().textclass, el);
1436 res = _("Document %1$s inserted.");
1438 res = _("Could not insert document %1$s");
1440 // emit message signal.
1441 message(bformat(res, disp_fn));
1442 buffer_->errors("Parse");