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 : 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 Session::BookmarkList & bmList = LyX::ref().session().loadBookmarks();
136 for (Session::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().saveFilePosition(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$s is already "
236 "loaded.\n\nDo you want to revert "
237 "to the saved version?"), file);
238 int const ret = Alert::prompt(_("Revert to saved document?"),
239 text, 0, 1, _("&Revert"), _("&Switch to document"));
242 setBuffer(theBufferList().getBuffer(s));
245 // FIXME: should be LFUN_REVERT
246 if (!theBufferList().close(theBufferList().getBuffer(s), false))
248 // Fall through to new load. (Asger)
254 b = theBufferList().newBuffer(s);
255 if (!lyx::loadLyXFile(b, s)) {
256 theBufferList().release(b);
260 docstring text = bformat(_("The document %1$s does not yet "
261 "exist.\n\nDo you want to create "
262 "a new document?"), from_utf8(s));
263 int const ret = Alert::prompt(_("Create new document?"),
264 text, 0, 1, _("&Create"), _("Cancel"));
267 b = newFile(s, string(), true);
275 // Send the "errors" signal in case of parsing errors
278 // scroll to the position when the file was last closed
279 if (lyxrc.use_lastfilepos) {
282 boost::tie(pit, pos) = LyX::ref().session().loadFilePosition(s);
283 // I am not sure how to separate the following part to a function
284 // so I will leave this to Lars.
286 // check pit since the document may be externally changed.
287 if ( static_cast<size_t>(pit) < b->paragraphs().size() ) {
288 ParIterator it = b->par_iterator_begin();
289 ParIterator const end = b->par_iterator_end();
290 for (; it != end; ++it)
291 if (it.pit() == pit) {
292 // restored pos may be bigger than it->size
293 setCursor(makeDocIterator(it, min(pos, it->size())));
294 update(Update::FitCursor);
301 LyX::ref().session().addLastFile(b->fileName());
307 void BufferView::reload()
309 string const fn = buffer_->fileName();
310 if (theBufferList().close(buffer_, false))
315 void BufferView::resize()
320 lyxerr[Debug::DEBUG] << BOOST_CURRENT_FUNCTION << endl;
322 buffer_->text().init(this);
328 bool BufferView::fitCursor()
330 if (bv_funcs::status(this, cursor_) == bv_funcs::CUR_INSIDE) {
331 frontend::FontMetrics const & fm =
332 theFontMetrics(cursor_.getFont());
333 int const asc = fm.maxAscent();
334 int const des = fm.maxDescent();
335 Point const p = bv_funcs::getPos(*this, cursor_, cursor_.boundary());
336 if (p.y_ - asc >= 0 && p.y_ + des < height_)
344 bool BufferView::multiParSel()
346 if (!cursor_.selection())
348 bool ret = multiparsel_cache_;
349 multiparsel_cache_ = cursor_.selBegin().pit() != cursor_.selEnd().pit();
350 // Either this, or previous selection spans paragraphs
351 return ret || multiparsel_cache_;
355 bool BufferView::update(Update::flags flags)
357 // This is close to a hot-path.
358 if (lyxerr.debugging(Debug::DEBUG)) {
360 << BOOST_CURRENT_FUNCTION
361 << "[fitcursor = " << (flags & Update::FitCursor)
362 << ", forceupdate = " << (flags & Update::Force)
363 << ", singlepar = " << (flags & Update::SinglePar)
364 << "] buffer: " << buffer_ << endl;
367 // Check needed to survive LyX startup
371 // Update macro store
372 buffer_->buildMacros();
374 // First drawing step
375 updateMetrics(flags & Update::SinglePar);
377 // The second drawing step is done in WorkArea::redraw() if needed.
378 bool const need_second_step =
379 (flags & (Update::Force | Update::FitCursor | Update::MultiParSel))
380 && (fitCursor() || multiParSel());
382 return need_second_step;
386 void BufferView::updateScrollbar()
389 lyxerr[Debug::DEBUG] << BOOST_CURRENT_FUNCTION
390 << " no text in updateScrollbar" << endl;
391 scrollbarParameters_.reset();
395 LyXText & t = buffer_->text();
396 int const parsize = int(t.paragraphs().size() - 1);
397 if (anchor_ref_ > parsize) {
398 anchor_ref_ = parsize;
403 << BOOST_CURRENT_FUNCTION
404 << " Updating scrollbar: height: " << t.paragraphs().size()
405 << " curr par: " << cursor_.bottom().pit()
406 << " default height " << defaultRowHeight() << endl;
408 // It would be better to fix the scrollbar to understand
409 // values in [0..1] and divide everything by wh
411 // estimated average paragraph height:
414 int h = t.getPar(anchor_ref_).height();
416 // Normalize anchor/offset (MV):
417 while (offset_ref_ > h && anchor_ref_ < parsize) {
420 h = t.getPar(anchor_ref_).height();
422 // Look at paragraph heights on-screen
425 for (pit_type pit = anchor_ref_; pit <= parsize; ++pit) {
428 int const h2 = t.getPar(pit).height();
432 int const hav = sumh / nh;
433 // More realistic average paragraph height
437 scrollbarParameters_.height = (parsize + 1) * wh_;
438 scrollbarParameters_.position = anchor_ref_ * wh_ + int(offset_ref_ * wh_ / float(h));
439 scrollbarParameters_.lineScrollHeight = int(wh_ * defaultRowHeight() / float(h));
443 ScrollbarParameters const & BufferView::scrollbarParameters() const
445 return scrollbarParameters_;
449 void BufferView::scrollDocView(int value)
451 lyxerr[Debug::GUI] << BOOST_CURRENT_FUNCTION
452 << "[ value = " << value << "]" << endl;
457 LyXText & t = buffer_->text();
459 float const bar = value / float(wh_ * t.paragraphs().size());
461 anchor_ref_ = int(bar * t.paragraphs().size());
462 if (anchor_ref_ > int(t.paragraphs().size()) - 1)
463 anchor_ref_ = int(t.paragraphs().size()) - 1;
464 t.redoParagraph(anchor_ref_);
465 int const h = t.getPar(anchor_ref_).height();
466 offset_ref_ = int((bar * t.paragraphs().size() - anchor_ref_) * h);
470 void BufferView::setCursorFromScrollbar()
472 LyXText & t = buffer_->text();
474 int const height = 2 * defaultRowHeight();
475 int const first = height;
476 int const last = height_ - height;
477 LCursor & cur = cursor_;
479 bv_funcs::CurStatus st = bv_funcs::status(this, cur);
482 case bv_funcs::CUR_ABOVE:
483 t.setCursorFromCoordinates(cur, 0, first);
484 cur.clearSelection();
486 case bv_funcs::CUR_BELOW:
487 t.setCursorFromCoordinates(cur, 0, last);
488 cur.clearSelection();
490 case bv_funcs::CUR_INSIDE:
491 int const y = bv_funcs::getPos(*this, cur, cur.boundary()).y_;
492 int const newy = min(last, max(y, first));
494 cur.reset(buffer_->inset());
495 t.setCursorFromCoordinates(cur, 0, newy);
501 Change const BufferView::getCurrentChange() const
503 if (!cursor_.selection())
504 return Change(Change::UNCHANGED);
506 DocIterator dit = cursor_.selectionBegin();
507 return dit.paragraph().lookupChange(dit.pos());
511 void BufferView::savePosition(unsigned int i)
513 if (i >= saved_positions_num)
515 BOOST_ASSERT(cursor_.inTexted());
516 saved_positions[i] = Position(buffer_->fileName(),
517 cursor_.paragraph().id(),
520 // emit message signal.
521 message(bformat(_("Saved bookmark %1$d"), i));
525 void BufferView::restorePosition(unsigned int i)
527 if (i >= saved_positions_num)
530 string const fname = saved_positions[i].filename;
532 cursor_.clearSelection();
534 if (fname != buffer_->fileName()) {
536 if (theBufferList().exists(fname))
537 b = theBufferList().getBuffer(fname);
539 b = theBufferList().newBuffer(fname);
540 // Don't ask, just load it
541 lyx::loadLyXFile(b, fname);
547 ParIterator par = buffer_->getParFromID(saved_positions[i].par_id);
548 if (par == buffer_->par_iterator_end())
551 setCursor(makeDocIterator(par, min(par->size(), saved_positions[i].par_pos)));
554 // emit message signal.
555 message(bformat(_("Moved to bookmark %1$d"), i));
559 bool BufferView::isSavedPosition(unsigned int i)
561 return i < saved_positions_num && !saved_positions[i].filename.empty();
564 void BufferView::saveSavedPositions()
566 // save bookmarks. It is better to use the pit interface
567 // but I do not know how to effectively convert between
569 for (unsigned int i=1; i < saved_positions_num; ++i) {
570 if ( isSavedPosition(i) )
571 LyX::ref().session().saveBookmark( boost::tie(
573 saved_positions[i].filename,
574 saved_positions[i].par_id,
575 saved_positions[i].par_pos) );
579 void BufferView::switchKeyMap()
581 if (!lyxrc.rtl_support)
584 if (getLyXText()->real_current_font.isRightToLeft()) {
585 if (intl_->keymap == Intl::PRIMARY)
588 if (intl_->keymap == Intl::SECONDARY)
594 int BufferView::workWidth() const
600 void BufferView::center()
602 CursorSlice & bot = cursor_.bottom();
603 pit_type const pit = bot.pit();
604 bot.text()->redoParagraph(pit);
605 Paragraph const & par = bot.text()->paragraphs()[pit];
607 offset_ref_ = bv_funcs::coordOffset(*this, cursor_, cursor_.boundary()).y_
608 + par.ascent() - height_ / 2;
612 FuncStatus BufferView::getStatus(FuncRequest const & cmd)
616 switch (cmd.action) {
619 flag.enabled(!buffer_->undostack().empty());
622 flag.enabled(!buffer_->redostack().empty());
624 case LFUN_FILE_INSERT:
625 case LFUN_FILE_INSERT_ASCII_PARA:
626 case LFUN_FILE_INSERT_ASCII:
627 case LFUN_BOOKMARK_SAVE:
628 // FIXME: Actually, these LFUNS should be moved to LyXText
629 flag.enabled(cursor_.inTexted());
631 case LFUN_FONT_STATE:
632 case LFUN_LABEL_INSERT:
633 case LFUN_PARAGRAPH_GOTO:
634 // FIXME handle non-trivially
635 case LFUN_OUTLINE_UP:
636 case LFUN_OUTLINE_DOWN:
637 case LFUN_OUTLINE_IN:
638 case LFUN_OUTLINE_OUT:
640 case LFUN_REFERENCE_NEXT:
642 case LFUN_WORD_REPLACE:
645 case LFUN_MARK_TOGGLE:
646 case LFUN_SCREEN_RECENTER:
647 case LFUN_BIBTEX_DATABASE_ADD:
648 case LFUN_BIBTEX_DATABASE_DEL:
649 case LFUN_WORDS_COUNT:
650 case LFUN_NEXT_INSET_TOGGLE:
654 case LFUN_LABEL_GOTO: {
655 flag.enabled(!cmd.argument().empty()
656 || getInsetByCode<InsetRef>(cursor_, InsetBase::REF_CODE));
660 case LFUN_BOOKMARK_GOTO:
661 flag.enabled(isSavedPosition(convert<unsigned int>(to_utf8(cmd.argument()))));
664 case LFUN_CHANGES_TRACK:
666 flag.setOnOff(buffer_->params().trackChanges);
669 case LFUN_CHANGES_OUTPUT: {
670 OutputParams runparams;
671 LaTeXFeatures features(*buffer_, buffer_->params(), runparams);
672 flag.enabled(buffer_ && features.isAvailable("dvipost"));
673 flag.setOnOff(buffer_->params().outputChanges);
677 case LFUN_CHANGES_MERGE:
678 case LFUN_CHANGE_NEXT:
679 case LFUN_ALL_CHANGES_ACCEPT:
680 case LFUN_ALL_CHANGES_REJECT:
681 flag.enabled(buffer_); // FIXME: Change tracking (MG)
684 case LFUN_BUFFER_TOGGLE_COMPRESSION: {
685 flag.setOnOff(buffer_->params().compressed);
697 bool BufferView::dispatch(FuncRequest const & cmd)
699 //lyxerr << BOOST_CURRENT_FUNCTION
700 // << [ cmd = " << cmd << "]" << endl;
702 // Make sure that the cached BufferView is correct.
703 lyxerr[Debug::ACTION] << BOOST_CURRENT_FUNCTION
704 << " action[" << cmd.action << ']'
705 << " arg[" << to_utf8(cmd.argument()) << ']'
706 << " x[" << cmd.x << ']'
707 << " y[" << cmd.y << ']'
708 << " button[" << cmd.button() << ']'
711 LCursor & cur = cursor_;
713 switch (cmd.action) {
717 cur.message(_("Undo"));
718 cur.clearSelection();
719 if (!textUndo(*this))
720 cur.message(_("No further undo information"));
728 cur.message(_("Redo"));
729 cur.clearSelection();
730 if (!textRedo(*this))
731 cur.message(_("No further redo information"));
737 case LFUN_FILE_INSERT:
738 // FIXME: We don't know the encoding of filenames
739 menuInsertLyXFile(to_utf8(cmd.argument()));
742 case LFUN_FILE_INSERT_ASCII_PARA:
743 // FIXME: We don't know the encoding of filenames
744 insertAsciiFile(this, to_utf8(cmd.argument()), true);
747 case LFUN_FILE_INSERT_ASCII:
748 // FIXME: We don't know the encoding of filenames
749 insertAsciiFile(this, to_utf8(cmd.argument()), false);
752 case LFUN_FONT_STATE:
753 cur.message(from_utf8(cur.currentState()));
756 case LFUN_BOOKMARK_SAVE:
757 savePosition(convert<unsigned int>(to_utf8(cmd.argument())));
760 case LFUN_BOOKMARK_GOTO:
761 restorePosition(convert<unsigned int>(to_utf8(cmd.argument())));
764 case LFUN_LABEL_GOTO: {
765 docstring label = cmd.argument();
768 getInsetByCode<InsetRef>(cursor_,
769 InsetBase::REF_CODE);
771 label = inset->getParam("reference");
781 case LFUN_PARAGRAPH_GOTO: {
782 int const id = convert<int>(to_utf8(cmd.argument()));
783 ParIterator par = buffer_->getParFromID(id);
784 if (par == buffer_->par_iterator_end()) {
785 lyxerr[Debug::INFO] << "No matching paragraph found! ["
786 << id << ']' << endl;
789 lyxerr[Debug::INFO] << "Paragraph " << par->id()
790 << " found." << endl;
794 setCursor(makeDocIterator(par, 0));
801 case LFUN_OUTLINE_UP:
802 toc::outline(toc::Up, cursor_);
803 cursor_.text()->setCursor(cursor_, cursor_.pit(), 0);
804 updateLabels(*buffer_);
806 case LFUN_OUTLINE_DOWN:
807 toc::outline(toc::Down, cursor_);
808 cursor_.text()->setCursor(cursor_, cursor_.pit(), 0);
809 updateLabels(*buffer_);
811 case LFUN_OUTLINE_IN:
812 toc::outline(toc::In, cursor_);
813 updateLabels(*buffer_);
815 case LFUN_OUTLINE_OUT:
816 toc::outline(toc::Out, cursor_);
817 updateLabels(*buffer_);
821 bv_funcs::gotoInset(this, InsetBase::NOTE_CODE, false);
824 case LFUN_REFERENCE_NEXT: {
825 vector<InsetBase_code> tmp;
826 tmp.push_back(InsetBase::LABEL_CODE);
827 tmp.push_back(InsetBase::REF_CODE);
828 bv_funcs::gotoInset(this, tmp, true);
832 case LFUN_CHANGES_TRACK:
833 buffer_->params().trackChanges = !buffer_->params().trackChanges;
836 case LFUN_CHANGES_OUTPUT: {
837 buffer_->params().outputChanges = !buffer_->params().outputChanges;
841 case LFUN_CHANGE_NEXT:
842 findNextChange(this);
845 case LFUN_CHANGES_MERGE:
846 if (findNextChange(this))
847 showDialog("changes");
850 case LFUN_ALL_CHANGES_ACCEPT: {
851 cursor_.reset(buffer_->inset());
853 #warning FIXME changes
855 while (findNextChange(this))
856 getLyXText()->acceptChange(cursor_);
861 case LFUN_ALL_CHANGES_REJECT: {
862 cursor_.reset(buffer_->inset());
864 #warning FIXME changes
866 while (findNextChange(this))
867 getLyXText()->rejectChange(cursor_);
875 case LFUN_WORD_REPLACE:
880 cur.clearSelection();
882 cur.message(from_utf8(N_("Mark off")));
886 cur.clearSelection();
889 cur.message(from_utf8(N_("Mark on")));
892 case LFUN_MARK_TOGGLE:
893 cur.clearSelection();
896 cur.message(from_utf8(N_("Mark removed")));
899 cur.message(from_utf8(N_("Mark set")));
904 case LFUN_SCREEN_RECENTER:
908 case LFUN_BIBTEX_DATABASE_ADD: {
909 LCursor tmpcur = cursor_;
910 bv_funcs::findInset(tmpcur, InsetBase::BIBTEX_CODE, false);
911 InsetBibtex * inset = getInsetByCode<InsetBibtex>(tmpcur,
912 InsetBase::BIBTEX_CODE);
914 if (inset->addDatabase(to_utf8(cmd.argument())))
915 buffer_->updateBibfilesCache();
920 case LFUN_BIBTEX_DATABASE_DEL: {
921 LCursor tmpcur = cursor_;
922 bv_funcs::findInset(tmpcur, InsetBase::BIBTEX_CODE, false);
923 InsetBibtex * inset = getInsetByCode<InsetBibtex>(tmpcur,
924 InsetBase::BIBTEX_CODE);
926 if (inset->delDatabase(to_utf8(cmd.argument())))
927 buffer_->updateBibfilesCache();
932 case LFUN_WORDS_COUNT: {
933 DocIterator from, to;
934 if (cur.selection()) {
935 from = cur.selectionBegin();
936 to = cur.selectionEnd();
938 from = doc_iterator_begin(buffer_->inset());
939 to = doc_iterator_end(buffer_->inset());
941 int const count = countWords(from, to);
945 message = bformat(_("%1$d words in selection."),
948 message = bformat(_("%1$d words in document."),
953 message = _("One word in selection.");
955 message = _("One word in document.");
958 Alert::information(_("Count words"), message);
962 case LFUN_BUFFER_TOGGLE_COMPRESSION:
963 // turn compression on/off
964 buffer_->params().compressed = !buffer_->params().compressed;
967 case LFUN_NEXT_INSET_TOGGLE: {
968 // this is the real function we want to invoke
969 FuncRequest tmpcmd = FuncRequest(LFUN_INSET_TOGGLE, cmd.origin);
970 // if there is an inset at cursor, see whether it
972 InsetBase * inset = cur.nextInset();
973 if (inset && inset->isActive()) {
974 LCursor tmpcur = cur;
975 tmpcur.pushLeft(*inset);
976 inset->dispatch(tmpcur, tmpcmd);
977 if (tmpcur.result().dispatched()) {
981 // if it did not work, try the underlying inset.
982 if (!cur.result().dispatched())
983 cur.dispatch(tmpcmd);
985 if (cur.result().dispatched())
986 cur.clearSelection();
999 docstring const BufferView::requestSelection()
1004 LCursor & cur = cursor_;
1006 if (!cur.selection()) {
1007 xsel_cache_.set = false;
1011 if (!xsel_cache_.set ||
1012 cur.top() != xsel_cache_.cursor ||
1013 cur.anchor_.top() != xsel_cache_.anchor)
1015 xsel_cache_.cursor = cur.top();
1016 xsel_cache_.anchor = cur.anchor_.top();
1017 xsel_cache_.set = cur.selection();
1018 return cur.selectionAsString(false);
1024 void BufferView::clearSelection()
1027 cursor_.clearSelection();
1028 xsel_cache_.set = false;
1033 void BufferView::workAreaResize(int width, int height)
1035 bool const widthChange = width != width_;
1036 bool const heightChange = height != height_;
1038 // Update from work area
1042 if (buffer_ && widthChange) {
1043 // The WorkArea content needs a resize
1047 if (widthChange || heightChange)
1052 bool BufferView::workAreaDispatch(FuncRequest const & cmd0)
1054 //lyxerr << BOOST_CURRENT_FUNCTION << "[ cmd0 " << cmd0 << "]" << endl;
1056 // This is only called for mouse related events including
1057 // LFUN_FILE_OPEN generated by drag-and-drop.
1058 FuncRequest cmd = cmd0;
1064 cur.push(buffer_->inset());
1065 cur.selection() = cursor_.selection();
1067 // Doesn't go through lyxfunc, so we need to update
1068 // the layout choice etc. ourselves
1070 // E.g. Qt mouse press when no buffer
1074 // Either the inset under the cursor or the
1075 // surrounding LyXText will handle this event.
1077 // Build temporary cursor.
1078 cmd.y = min(max(cmd.y, -1), height_);
1079 InsetBase * inset = buffer_->text().editXY(cur, cmd.x, cmd.y);
1080 //lyxerr << BOOST_CURRENT_FUNCTION
1081 // << " * hit inset at tip: " << inset << endl;
1082 //lyxerr << BOOST_CURRENT_FUNCTION
1083 // << " * created temp cursor:" << cur << endl;
1085 // Put anchor at the same position.
1088 // Try to dispatch to an non-editable inset near this position
1089 // via the temp cursor. If the inset wishes to change the real
1090 // cursor it has to do so explicitly by using
1091 // cur.bv().cursor() = cur; (or similar)
1093 inset->dispatch(cur, cmd);
1095 // Now dispatch to the temporary cursor. If the real cursor should
1096 // be modified, the inset's dispatch has to do so explicitly.
1097 if (!cur.result().dispatched())
1100 if (cur.result().dispatched()) {
1101 // Redraw if requested or necessary.
1102 if (cur.result().update())
1103 update(Update::FitCursor | Update::Force);
1105 update(Update::FitCursor | Update::MultiParSel);
1112 void BufferView::scroll(int /*lines*/)
1117 // LyXText const * t = &buffer_->text();
1118 // int const line_height = defaultRowHeight();
1120 // // The new absolute coordinate
1121 // int new_top_y = top_y() + lines * line_height;
1123 // // Restrict to a valid value
1124 // new_top_y = std::min(t->height() - 4 * line_height, new_top_y);
1125 // new_top_y = std::max(0, new_top_y);
1127 // scrollDocView(new_top_y);
1129 // // Update the scrollbar.
1130 // workArea_->setScrollbarParams(t->height(), top_y(), defaultRowHeight());}
1134 void BufferView::setCursorFromRow(int row)
1139 buffer_->texrow().getIdFromRow(row, tmpid, tmppos);
1142 buffer_->text().setCursor(cursor_, 0, 0);
1144 buffer_->text().setCursor(cursor_, buffer_->getParFromID(tmpid).pit(), tmppos);
1148 void BufferView::gotoLabel(docstring const & label)
1150 for (InsetIterator it = inset_iterator_begin(buffer_->inset()); it; ++it) {
1151 vector<docstring> labels;
1152 it->getLabelList(*buffer_, labels);
1153 if (std::find(labels.begin(), labels.end(), label) != labels.end()) {
1162 LyXText * BufferView::getLyXText()
1164 LyXText * text = cursor_.innerText();
1170 LyXText const * BufferView::getLyXText() const
1172 LyXText const * text = cursor_.innerText();
1178 int BufferView::workHeight() const
1184 void BufferView::setCursor(DocIterator const & dit)
1186 size_t const n = dit.depth();
1187 for (size_t i = 0; i < n; ++i)
1188 dit[i].inset().edit(cursor_, true);
1190 cursor_.setCursor(dit);
1191 cursor_.selection() = false;
1195 void BufferView::mouseSetCursor(LCursor & cur)
1197 BOOST_ASSERT(&cur.bv() == this);
1199 // Has the cursor just left the inset?
1200 bool badcursor = false;
1201 if (&cursor_.inset() != &cur.inset())
1202 badcursor = cursor_.inset().notifyCursorLeaves(cursor_);
1204 // do the dEPM magic if needed
1205 // FIXME: move this to InsetText::notifyCursorLeaves?
1206 if (!badcursor && cursor_.inTexted())
1207 cursor_.text()->deleteEmptyParagraphMechanism(cur, cursor_);
1210 cursor_.clearSelection();
1211 cursor_.setTargetX();
1217 void BufferView::putSelectionAt(DocIterator const & cur,
1218 int length, bool backwards)
1220 cursor_.clearSelection();
1226 cursor_.pos() += length;
1227 cursor_.setSelection(cursor_, -length);
1229 cursor_.setSelection(cursor_, length);
1234 LCursor & BufferView::cursor()
1240 LCursor const & BufferView::cursor() const
1246 pit_type BufferView::anchor_ref() const
1252 ViewMetricsInfo const & BufferView::viewMetricsInfo()
1254 return metrics_info_;
1258 void BufferView::updateMetrics(bool singlepar)
1260 // FIXME (Abdel 19/10/2006):
1261 // There's something fishy in tabular. The coord_cache_ is not
1262 // correctly reconstructed when a character is trying to be inserted.
1263 // Not clearing out the coord_cache_ fixes the crash but there is a
1264 // bad side effect: buffer-begin and buffer-end do not update the screen.
1266 // Remove old position cache
1267 coord_cache_.clear();
1269 LyXText & buftext = buffer_->text();
1270 pit_type size = int(buftext.paragraphs().size());
1272 if (anchor_ref_ > int(buftext.paragraphs().size() - 1)) {
1273 anchor_ref_ = int(buftext.paragraphs().size() - 1);
1277 pit_type const pit = anchor_ref_;
1280 size_t const npit = buftext.paragraphs().size();
1282 // Rebreak anchor paragraph. In Single Paragraph mode, rebreak only
1283 // the (main text, not inset!) paragraph containing the cursor.
1284 // (if this paragraph contains insets etc., rebreaking will
1285 // recursively descend)
1286 if (!singlepar || pit == cursor_.bottom().pit())
1287 buftext.redoParagraph(pit);
1288 int y0 = buftext.getPar(pit).ascent() - offset_ref_;
1290 // Redo paragraphs above anchor if necessary; again, in Single Par
1291 // mode, only if we encounter the (main text) one having the cursor.
1293 while (y1 > 0 && pit1 > 0) {
1294 y1 -= buftext.getPar(pit1).ascent();
1296 if (!singlepar || pit1 == cursor_.bottom().pit())
1297 buftext.redoParagraph(pit1);
1298 y1 -= buftext.getPar(pit1).descent();
1302 // Take care of ascent of first line
1303 y1 -= buftext.getPar(pit1).ascent();
1305 // Normalize anchor for next time
1309 // Grey at the beginning is ugly
1310 if (pit1 == 0 && y1 > 0) {
1316 // Redo paragraphs below the anchor if necessary. Single par mode:
1317 // only the one containing the cursor if encountered.
1319 while (y2 < height_ && pit2 < int(npit) - 1) {
1320 y2 += buftext.getPar(pit2).descent();
1322 if (!singlepar || pit2 == cursor_.bottom().pit())
1323 buftext.redoParagraph(pit2);
1324 y2 += buftext.getPar(pit2).ascent();
1327 // Take care of descent of last line
1328 y2 += buftext.getPar(pit2).descent();
1330 // The coordinates of all these paragraphs are correct, cache them
1332 CoordCache::InnerParPosCache & parPos = coord_cache_.parPos()[&buftext];
1333 for (pit_type pit = pit1; pit <= pit2; ++pit) {
1334 Paragraph const & par = buftext.getPar(pit);
1336 parPos[pit] = Point(0, y);
1337 if (singlepar && pit == cursor_.bottom().pit()) {
1338 // In Single Paragraph mode, collect here the
1339 // y1 and y2 of the (one) paragraph the cursor is in
1340 y1 = y - par.ascent();
1341 y2 = y + par.descent();
1347 // collect cursor paragraph iter bounds
1348 pit1 = cursor_.bottom().pit();
1349 pit2 = cursor_.bottom().pit();
1352 lyxerr[Debug::DEBUG]
1353 << BOOST_CURRENT_FUNCTION
1356 << " pit1: " << pit1
1357 << " pit2: " << pit2
1358 << " npit: " << npit
1359 << " singlepar: " << singlepar
1363 metrics_info_ = ViewMetricsInfo(pit1, pit2, y1, y2, singlepar, size);
1365 if (lyxerr.debugging(Debug::WORKAREA)) {
1366 coord_cache_.dump();
1371 void BufferView::menuInsertLyXFile(string const & filenm)
1373 BOOST_ASSERT(cursor_.inTexted());
1374 string filename = filenm;
1376 if (filename.empty()) {
1377 // Launch a file browser
1379 string initpath = lyxrc.document_path;
1382 string const trypath = buffer_->filePath();
1383 // If directory is writeable, use this as default.
1384 if (isDirWriteable(trypath))
1389 FileDialog fileDlg(_("Select LyX document to insert"),
1391 make_pair(_("Documents|#o#O"), from_utf8(lyxrc.document_path)),
1392 make_pair(_("Examples|#E#e"), from_utf8(addPath(package().system_support(), "examples"))));
1394 FileDialog::Result result =
1395 fileDlg.open(from_utf8(initpath),
1396 FileFilterList(_("LyX Documents (*.lyx)")),
1399 if (result.first == FileDialog::Later)
1403 filename = to_utf8(result.second);
1405 // check selected filename
1406 if (filename.empty()) {
1407 // emit message signal.
1408 message(_("Canceled."));
1413 // Get absolute path of file and add ".lyx"
1414 // to the filename if necessary
1415 filename = fileSearch(string(), filename, "lyx");
1417 docstring const disp_fn = makeDisplayPath(filename);
1418 // emit message signal.
1419 message(bformat(_("Inserting document %1$s..."), disp_fn));
1422 Buffer buf("", false);
1423 if (lyx::loadLyXFile(&buf, makeAbsPath(filename))) {
1424 ErrorList & el = buffer_->errorList("Parse");
1425 // Copy the inserted document error list into the current buffer one.
1426 el = buf.errorList("Parse");
1427 cap::pasteParagraphList(cursor_, buf.paragraphs(),
1428 buf.params().textclass, el);
1429 res = _("Document %1$s inserted.");
1431 res = _("Could not insert document %1$s");
1433 // emit message signal.
1434 message(bformat(res, disp_fn));
1435 buffer_->errors("Parse");