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/font_metrics.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>
84 using lyx::support::addPath;
85 using lyx::support::bformat;
86 using lyx::support::FileFilterList;
87 using lyx::support::fileSearch;
88 using lyx::support::isDirWriteable;
89 using lyx::support::makeDisplayPath;
90 using lyx::support::makeAbsPath;
91 using lyx::support::package;
95 using std::istringstream;
100 using std::mem_fun_ref;
104 extern BufferList bufferlist;
109 unsigned int const saved_positions_num = 20;
112 /// Return an inset of this class if it exists at the current cursor position
114 T * getInsetByCode(LCursor & cur, InsetBase::Code code)
117 DocIterator it = cur;
118 if (it.nextInset() &&
119 it.nextInset()->lyxCode() == code) {
120 inset = static_cast<T*>(it.nextInset());
128 BufferView::BufferView()
129 : buffer_(0), wh_(0),
131 multiparsel_cache_(false), anchor_ref_(0), offset_ref_(0),
134 xsel_cache_.set = false;
136 saved_positions.resize(saved_positions_num);
137 // load saved bookmarks
138 lyx::Session::BookmarkList & bmList = LyX::ref().session().loadBookmarks();
139 for (lyx::Session::BookmarkList::iterator bm = bmList.begin();
140 bm != bmList.end(); ++bm)
141 if (bm->get<0>() < saved_positions_num)
142 saved_positions[bm->get<0>()] = Position( bm->get<1>(), bm->get<2>(), bm->get<3>() );
143 // and then clear them
146 intl_->initKeyMapper(lyxrc.use_kbmap);
150 BufferView::~BufferView()
155 Buffer * BufferView::buffer() const
161 void BufferView::setBuffer(Buffer * b)
163 lyxerr[Debug::INFO] << BOOST_CURRENT_FUNCTION
164 << "[ b = " << b << "]" << endl;
167 // Save the actual cursor position and anchor inside the
168 // buffer so that it can be restored in case we rechange
169 // to this buffer later on.
170 buffer_->saveCursor(cursor_.selectionBegin(),
171 cursor_.selectionEnd());
172 // current buffer is going to be switched-off, save cursor pos
173 LyX::ref().session().saveFilePosition(buffer_->fileName(),
174 boost::tie(cursor_.pit(), cursor_.pos()) );
177 // If we're quitting lyx, don't bother updating stuff
183 // If we are closing current buffer, switch to the first in
186 lyxerr[Debug::INFO] << BOOST_CURRENT_FUNCTION
187 << " No Buffer!" << endl;
188 // We are closing the buffer, use the first buffer as current
189 buffer_ = bufferlist.first();
191 // Set current buffer
196 cursor_ = LCursor(*this);
201 lyxerr[Debug::INFO] << BOOST_CURRENT_FUNCTION
202 << "Buffer addr: " << buffer_ << endl;
203 cursor_.push(buffer_->inset());
204 cursor_.resetAnchor();
205 buffer_->text().init(this);
206 buffer_->text().setCurrentFont(cursor_);
207 if (buffer_->getCursor().size() > 0 &&
208 buffer_->getAnchor().size() > 0)
210 cursor_.setCursor(buffer_->getAnchor().asDocIterator(&(buffer_->inset())));
211 cursor_.resetAnchor();
212 cursor_.setCursor(buffer_->getCursor().asDocIterator(&(buffer_->inset())));
213 cursor_.setSelection();
219 if (buffer_ && lyx::graphics::Previews::status() != LyXRC::PREVIEW_OFF)
220 lyx::graphics::Previews::get().generateBufferPreviews(*buffer_);
224 bool BufferView::loadLyXFile(string const & filename, bool tolastfiles)
226 // Get absolute path of file and add ".lyx"
227 // to the filename if necessary
228 string s = fileSearch(string(), filename, "lyx");
230 bool const found = !s.empty();
235 // File already open?
236 if (bufferlist.exists(s)) {
237 docstring const file = makeDisplayPath(s, 20);
238 docstring text = bformat(_("The document %1$s is already "
239 "loaded.\n\nDo you want to revert "
240 "to the saved version?"), file);
241 int const ret = Alert::prompt(_("Revert to saved document?"),
242 text, 0, 1, _("&Revert"), _("&Switch to document"));
245 setBuffer(bufferlist.getBuffer(s));
248 // FIXME: should be LFUN_REVERT
249 if (!bufferlist.close(bufferlist.getBuffer(s), false))
251 // Fall through to new load. (Asger)
257 b = bufferlist.newBuffer(s);
258 if (!::loadLyXFile(b, s)) {
259 bufferlist.release(b);
263 docstring text = bformat(_("The document %1$s does not yet "
264 "exist.\n\nDo you want to create "
265 "a new document?"), lyx::from_utf8(s));
266 int const ret = Alert::prompt(_("Create new document?"),
267 text, 0, 1, _("&Create"), _("Cancel"));
270 b = newFile(s, string(), true);
278 // Send the "errors" signal in case of parsing errors
281 // scroll to the position when the file was last closed
282 if (lyxrc.use_lastfilepos) {
285 boost::tie(pit, pos) = LyX::ref().session().loadFilePosition(s);
286 // I am not sure how to separate the following part to a function
287 // so I will leave this to Lars.
289 // check pit since the document may be externally changed.
290 if ( static_cast<size_t>(pit) < b->paragraphs().size() ) {
291 ParIterator it = b->par_iterator_begin();
292 ParIterator const end = b->par_iterator_end();
293 for (; it != end; ++it)
294 if (it.pit() == pit) {
295 // restored pos may be bigger than it->size
296 setCursor(makeDocIterator(it, min(pos, it->size())));
297 update(Update::FitCursor);
304 LyX::ref().session().addLastFile(b->fileName());
310 void BufferView::reload()
312 string const fn = buffer_->fileName();
313 if (bufferlist.close(buffer_, false))
318 void BufferView::resize()
323 lyxerr[Debug::DEBUG] << BOOST_CURRENT_FUNCTION << endl;
325 buffer_->text().init(this);
331 bool BufferView::fitCursor()
333 if (bv_funcs::status(this, cursor_) == bv_funcs::CUR_INSIDE) {
334 LyXFont const font = cursor_.getFont();
335 int const asc = font_metrics::maxAscent(font);
336 int const des = font_metrics::maxDescent(font);
337 Point const p = bv_funcs::getPos(cursor_, cursor_.boundary());
338 if (p.y_ - asc >= 0 && p.y_ + des < height_)
346 bool BufferView::multiParSel()
348 if (!cursor_.selection())
350 bool ret = multiparsel_cache_;
351 multiparsel_cache_ = cursor_.selBegin().pit() != cursor_.selEnd().pit();
352 // Either this, or previous selection spans paragraphs
353 return ret || multiparsel_cache_;
357 bool BufferView::update(Update::flags flags)
359 // This is close to a hot-path.
360 if (lyxerr.debugging(Debug::DEBUG)) {
362 << BOOST_CURRENT_FUNCTION
363 << "[fitcursor = " << (flags & Update::FitCursor)
364 << ", forceupdate = " << (flags & Update::Force)
365 << ", singlepar = " << (flags & Update::SinglePar)
366 << "] buffer: " << buffer_ << endl;
369 // Check needed to survive LyX startup
373 // Update macro store
374 buffer_->buildMacros();
376 // First drawing step
377 updateMetrics(flags & Update::SinglePar);
379 // The second drawing step is done in WorkArea::redraw() if needed.
380 bool const need_second_step =
381 (flags & (Update::Force | Update::FitCursor | Update::MultiParSel))
382 && (fitCursor() || multiParSel());
384 return need_second_step;
388 void BufferView::updateScrollbar()
391 lyxerr[Debug::DEBUG] << BOOST_CURRENT_FUNCTION
392 << " no text in updateScrollbar" << endl;
393 scrollbarParameters_.reset();
397 LyXText & t = buffer_->text();
398 int const parsize = int(t.paragraphs().size() - 1);
399 if (anchor_ref_ > parsize) {
400 anchor_ref_ = parsize;
405 << BOOST_CURRENT_FUNCTION
406 << " Updating scrollbar: height: " << t.paragraphs().size()
407 << " curr par: " << cursor_.bottom().pit()
408 << " default height " << defaultRowHeight() << endl;
410 // It would be better to fix the scrollbar to understand
411 // values in [0..1] and divide everything by wh
413 // estimated average paragraph height:
416 int h = t.getPar(anchor_ref_).height();
418 // Normalize anchor/offset (MV):
419 while (offset_ref_ > h && anchor_ref_ < parsize) {
422 h = t.getPar(anchor_ref_).height();
424 // Look at paragraph heights on-screen
427 for (lyx::pit_type pit = anchor_ref_; pit <= parsize; ++pit) {
430 int const h2 = t.getPar(pit).height();
434 int const hav = sumh / nh;
435 // More realistic average paragraph height
439 scrollbarParameters_.height = (parsize + 1) * wh_;
440 scrollbarParameters_.position = anchor_ref_ * wh_ + int(offset_ref_ * wh_ / float(h));
441 scrollbarParameters_.lineScrollHeight = int(wh_ * defaultRowHeight() / float(h));
445 ScrollbarParameters const & BufferView::scrollbarParameters() const
447 return scrollbarParameters_;
451 void BufferView::scrollDocView(int value)
453 lyxerr[Debug::GUI] << BOOST_CURRENT_FUNCTION
454 << "[ value = " << value << "]" << endl;
459 LyXText & t = buffer_->text();
461 float const bar = value / float(wh_ * t.paragraphs().size());
463 anchor_ref_ = int(bar * t.paragraphs().size());
464 if (anchor_ref_ > int(t.paragraphs().size()) - 1)
465 anchor_ref_ = int(t.paragraphs().size()) - 1;
466 t.redoParagraph(anchor_ref_);
467 int const h = t.getPar(anchor_ref_).height();
468 offset_ref_ = int((bar * t.paragraphs().size() - anchor_ref_) * h);
472 void BufferView::setCursorFromScrollbar()
474 LyXText & t = buffer_->text();
476 int const height = 2 * defaultRowHeight();
477 int const first = height;
478 int const last = height_ - height;
479 LCursor & cur = cursor_;
481 bv_funcs::CurStatus st = bv_funcs::status(this, cur);
484 case bv_funcs::CUR_ABOVE:
485 t.setCursorFromCoordinates(cur, 0, first);
486 cur.clearSelection();
488 case bv_funcs::CUR_BELOW:
489 t.setCursorFromCoordinates(cur, 0, last);
490 cur.clearSelection();
492 case bv_funcs::CUR_INSIDE:
493 int const y = bv_funcs::getPos(cur, cur.boundary()).y_;
494 int const newy = min(last, max(y, first));
496 cur.reset(buffer_->inset());
497 t.setCursorFromCoordinates(cur, 0, newy);
503 Change const BufferView::getCurrentChange()
505 if (!buffer_->params().tracking_changes || !cursor_.selection())
506 return Change(Change::UNCHANGED);
508 DocIterator dit = cursor_.selectionBegin();
509 return dit.paragraph().lookupChange(dit.pos());
513 void BufferView::savePosition(unsigned int i)
515 if (i >= saved_positions_num)
517 BOOST_ASSERT(cursor_.inTexted());
518 saved_positions[i] = Position(buffer_->fileName(),
519 cursor_.paragraph().id(),
522 // emit message signal.
523 message(bformat(_("Saved bookmark %1$d"), i));
527 void BufferView::restorePosition(unsigned int i)
529 if (i >= saved_positions_num)
532 string const fname = saved_positions[i].filename;
534 cursor_.clearSelection();
536 if (fname != buffer_->fileName()) {
538 if (bufferlist.exists(fname))
539 b = bufferlist.getBuffer(fname);
541 b = bufferlist.newBuffer(fname);
542 // Don't ask, just load it
543 ::loadLyXFile(b, fname);
549 ParIterator par = buffer_->getParFromID(saved_positions[i].par_id);
550 if (par == buffer_->par_iterator_end())
553 setCursor(makeDocIterator(par, min(par->size(), saved_positions[i].par_pos)));
556 // emit message signal.
557 message(bformat(_("Moved to bookmark %1$d"), i));
561 bool BufferView::isSavedPosition(unsigned int i)
563 return i < saved_positions_num && !saved_positions[i].filename.empty();
566 void BufferView::saveSavedPositions()
568 // save bookmarks. It is better to use the pit interface
569 // but I do not know how to effectively convert between
571 for (unsigned int i=1; i < saved_positions_num; ++i) {
572 if ( isSavedPosition(i) )
573 LyX::ref().session().saveBookmark( boost::tie(
575 saved_positions[i].filename,
576 saved_positions[i].par_id,
577 saved_positions[i].par_pos) );
581 void BufferView::switchKeyMap()
583 if (!lyxrc.rtl_support)
586 if (getLyXText()->real_current_font.isRightToLeft()) {
587 if (intl_->keymap == Intl::PRIMARY)
590 if (intl_->keymap == Intl::SECONDARY)
596 int BufferView::workWidth() const
602 void BufferView::center()
604 CursorSlice & bot = cursor_.bottom();
605 lyx::pit_type const pit = bot.pit();
606 bot.text()->redoParagraph(pit);
607 Paragraph const & par = bot.text()->paragraphs()[pit];
609 offset_ref_ = bv_funcs::coordOffset(cursor_, cursor_.boundary()).y_
610 + par.ascent() - height_ / 2;
614 FuncStatus BufferView::getStatus(FuncRequest const & cmd)
618 switch (cmd.action) {
621 flag.enabled(!buffer_->undostack().empty());
624 flag.enabled(!buffer_->redostack().empty());
626 case LFUN_FILE_INSERT:
627 case LFUN_FILE_INSERT_ASCII_PARA:
628 case LFUN_FILE_INSERT_ASCII:
629 case LFUN_BOOKMARK_SAVE:
630 // FIXME: Actually, these LFUNS should be moved to LyXText
631 flag.enabled(cursor_.inTexted());
633 case LFUN_FONT_STATE:
634 case LFUN_LABEL_INSERT:
635 case LFUN_PARAGRAPH_GOTO:
636 // FIXME handle non-trivially
637 case LFUN_OUTLINE_UP:
638 case LFUN_OUTLINE_DOWN:
639 case LFUN_OUTLINE_IN:
640 case LFUN_OUTLINE_OUT:
642 case LFUN_REFERENCE_NEXT:
644 case LFUN_WORD_REPLACE:
647 case LFUN_MARK_TOGGLE:
648 case LFUN_SCREEN_RECENTER:
649 case LFUN_BIBTEX_DATABASE_ADD:
650 case LFUN_BIBTEX_DATABASE_DEL:
651 case LFUN_WORDS_COUNT:
652 case LFUN_NEXT_INSET_TOGGLE:
656 case LFUN_LABEL_GOTO: {
657 flag.enabled(!cmd.argument().empty()
658 || getInsetByCode<InsetRef>(cursor_, InsetBase::REF_CODE));
662 case LFUN_BOOKMARK_GOTO:
663 flag.enabled(isSavedPosition(convert<unsigned int>(lyx::to_utf8(cmd.argument()))));
665 case LFUN_CHANGES_TRACK:
667 flag.setOnOff(buffer_->params().tracking_changes);
670 case LFUN_CHANGES_OUTPUT: {
671 OutputParams runparams;
672 LaTeXFeatures features(*buffer_, buffer_->params(), runparams);
673 flag.enabled(buffer_ && buffer_->params().tracking_changes
674 && features.isAvailable("dvipost"));
675 flag.setOnOff(buffer_->params().output_changes);
679 case LFUN_CHANGES_MERGE:
680 case LFUN_CHANGE_ACCEPT: // what about these two
681 case LFUN_CHANGE_REJECT: // what about these two
682 case LFUN_ALL_CHANGES_ACCEPT:
683 case LFUN_ALL_CHANGES_REJECT:
684 flag.enabled(buffer_ && buffer_->params().tracking_changes);
687 case LFUN_BUFFER_TOGGLE_COMPRESSION: {
688 flag.setOnOff(buffer_->params().compressed);
700 bool BufferView::dispatch(FuncRequest const & cmd)
702 //lyxerr << BOOST_CURRENT_FUNCTION
703 // << [ cmd = " << cmd << "]" << endl;
705 // Make sure that the cached BufferView is correct.
706 lyxerr[Debug::ACTION] << BOOST_CURRENT_FUNCTION
707 << " action[" << cmd.action << ']'
708 << " arg[" << lyx::to_utf8(cmd.argument()) << ']'
709 << " x[" << cmd.x << ']'
710 << " y[" << cmd.y << ']'
711 << " button[" << cmd.button() << ']'
714 LCursor & cur = cursor_;
716 switch (cmd.action) {
720 cur.message(_("Undo"));
721 cur.clearSelection();
722 if (!textUndo(*this))
723 cur.message(_("No further undo information"));
731 cur.message(_("Redo"));
732 cur.clearSelection();
733 if (!textRedo(*this))
734 cur.message(_("No further redo information"));
740 case LFUN_FILE_INSERT:
741 // FIXME: We don't know the encoding of filenames
742 menuInsertLyXFile(lyx::to_utf8(cmd.argument()));
745 case LFUN_FILE_INSERT_ASCII_PARA:
746 // FIXME: We don't know the encoding of filenames
747 insertAsciiFile(this, lyx::to_utf8(cmd.argument()), true);
750 case LFUN_FILE_INSERT_ASCII:
751 // FIXME: We don't know the encoding of filenames
752 insertAsciiFile(this, lyx::to_utf8(cmd.argument()), false);
755 case LFUN_FONT_STATE:
756 cur.message(lyx::from_utf8(cur.currentState()));
759 case LFUN_BOOKMARK_SAVE:
760 savePosition(convert<unsigned int>(lyx::to_utf8(cmd.argument())));
763 case LFUN_BOOKMARK_GOTO:
764 restorePosition(convert<unsigned int>(lyx::to_utf8(cmd.argument())));
767 case LFUN_LABEL_GOTO: {
768 string label = lyx::to_utf8(cmd.argument());
771 getInsetByCode<InsetRef>(cursor_,
772 InsetBase::REF_CODE);
774 label = inset->getContents();
784 case LFUN_PARAGRAPH_GOTO: {
785 int const id = convert<int>(lyx::to_utf8(cmd.argument()));
786 ParIterator par = buffer_->getParFromID(id);
787 if (par == buffer_->par_iterator_end()) {
788 lyxerr[Debug::INFO] << "No matching paragraph found! ["
789 << id << ']' << endl;
792 lyxerr[Debug::INFO] << "Paragraph " << par->id()
793 << " found." << endl;
797 setCursor(makeDocIterator(par, 0));
804 case LFUN_OUTLINE_UP:
805 lyx::toc::outline(lyx::toc::Up, cursor_);
806 cursor_.text()->setCursor(cursor_, cursor_.pit(), 0);
807 updateLabels(*buffer_);
809 case LFUN_OUTLINE_DOWN:
810 lyx::toc::outline(lyx::toc::Down, cursor_);
811 cursor_.text()->setCursor(cursor_, cursor_.pit(), 0);
812 updateLabels(*buffer_);
814 case LFUN_OUTLINE_IN:
815 lyx::toc::outline(lyx::toc::In, cursor_);
816 updateLabels(*buffer_);
818 case LFUN_OUTLINE_OUT:
819 lyx::toc::outline(lyx::toc::Out, cursor_);
820 updateLabels(*buffer_);
824 bv_funcs::gotoInset(this, InsetBase::NOTE_CODE, false);
827 case LFUN_REFERENCE_NEXT: {
828 vector<InsetBase_code> tmp;
829 tmp.push_back(InsetBase::LABEL_CODE);
830 tmp.push_back(InsetBase::REF_CODE);
831 bv_funcs::gotoInset(this, tmp, true);
835 case LFUN_CHANGES_TRACK:
839 case LFUN_CHANGES_OUTPUT: {
840 bool const state = buffer_->params().output_changes;
841 buffer_->params().output_changes = !state;
845 case LFUN_CHANGES_MERGE:
846 if (lyx::find::findNextChange(this))
847 showDialog("changes");
850 case LFUN_ALL_CHANGES_ACCEPT: {
851 cursor_.reset(buffer_->inset());
853 #warning FIXME changes
855 while (lyx::find::findNextChange(this))
856 getLyXText()->acceptChange(cursor_);
861 case LFUN_ALL_CHANGES_REJECT: {
862 cursor_.reset(buffer_->inset());
864 #warning FIXME changes
866 while (lyx::find::findNextChange(this))
867 getLyXText()->rejectChange(cursor_);
872 lyx::find::find(this, cmd);
875 case LFUN_WORD_REPLACE:
876 lyx::find::replace(this, cmd);
880 cur.clearSelection();
882 cur.message(lyx::from_utf8(N_("Mark off")));
886 cur.clearSelection();
889 cur.message(lyx::from_utf8(N_("Mark on")));
892 case LFUN_MARK_TOGGLE:
893 cur.clearSelection();
896 cur.message(lyx::from_utf8(N_("Mark removed")));
899 cur.message(lyx::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(lyx::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(lyx::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(string const & label)
1150 for (InsetIterator it = inset_iterator_begin(buffer_->inset()); it; ++it) {
1151 vector<string> labels;
1152 it->getLabelList(*buffer_, labels);
1153 if (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 lyx::pit_type BufferView::anchor_ref() const
1252 ViewMetricsInfo const & BufferView::viewMetricsInfo()
1254 return metrics_info_;
1258 void BufferView::updateMetrics(bool singlepar)
1260 // Remove old position cache
1262 LyXText & buftext = buffer_->text();
1263 lyx::pit_type size = int(buftext.paragraphs().size());
1265 if (anchor_ref_ > int(buftext.paragraphs().size() - 1)) {
1266 anchor_ref_ = int(buftext.paragraphs().size() - 1);
1270 lyx::pit_type const pit = anchor_ref_;
1273 size_t const npit = buftext.paragraphs().size();
1275 // Rebreak anchor paragraph. In Single Paragraph mode, rebreak only
1276 // the (main text, not inset!) paragraph containing the cursor.
1277 // (if this paragraph contains insets etc., rebreaking will
1278 // recursively descend)
1279 if (!singlepar || pit == cursor_.bottom().pit())
1280 buftext.redoParagraph(pit);
1281 int y0 = buftext.getPar(pit).ascent() - offset_ref_;
1283 // Redo paragraphs above anchor if necessary; again, in Single Par
1284 // mode, only if we encounter the (main text) one having the cursor.
1286 while (y1 > 0 && pit1 > 0) {
1287 y1 -= buftext.getPar(pit1).ascent();
1289 if (!singlepar || pit1 == cursor_.bottom().pit())
1290 buftext.redoParagraph(pit1);
1291 y1 -= buftext.getPar(pit1).descent();
1295 // Take care of ascent of first line
1296 y1 -= buftext.getPar(pit1).ascent();
1298 // Normalize anchor for next time
1302 // Grey at the beginning is ugly
1303 if (pit1 == 0 && y1 > 0) {
1309 // Redo paragraphs below the anchor if necessary. Single par mode:
1310 // only the one containing the cursor if encountered.
1312 while (y2 < height_ && pit2 < int(npit) - 1) {
1313 y2 += buftext.getPar(pit2).descent();
1315 if (!singlepar || pit2 == cursor_.bottom().pit())
1316 buftext.redoParagraph(pit2);
1317 y2 += buftext.getPar(pit2).ascent();
1320 // Take care of descent of last line
1321 y2 += buftext.getPar(pit2).descent();
1323 // The coordinates of all these paragraphs are correct, cache them
1325 CoordCache::InnerParPosCache & parPos = theCoords.parPos()[&buftext];
1326 for (lyx::pit_type pit = pit1; pit <= pit2; ++pit) {
1327 Paragraph const & par = buftext.getPar(pit);
1329 parPos[pit] = Point(0, y);
1330 if (singlepar && pit == cursor_.bottom().pit()) {
1331 // In Single Paragraph mode, collect here the
1332 // y1 and y2 of the (one) paragraph the cursor is in
1333 y1 = y - par.ascent();
1334 y2 = y + par.descent();
1340 // collect cursor paragraph iter bounds
1341 pit1 = cursor_.bottom().pit();
1342 pit2 = cursor_.bottom().pit();
1345 lyxerr[Debug::DEBUG]
1346 << BOOST_CURRENT_FUNCTION
1349 << " pit1: " << pit1
1350 << " pit2: " << pit2
1351 << " npit: " << npit
1352 << " singlepar: " << singlepar
1356 metrics_info_ = ViewMetricsInfo(pit1, pit2, y1, y2, singlepar, size);
1360 void BufferView::menuInsertLyXFile(string const & filenm)
1362 BOOST_ASSERT(cursor_.inTexted());
1363 string filename = filenm;
1365 if (filename.empty()) {
1366 // Launch a file browser
1367 string initpath = lyxrc.document_path;
1370 string const trypath = buffer_->filePath();
1371 // If directory is writeable, use this as default.
1372 if (isDirWriteable(trypath))
1376 FileDialog fileDlg(lyx::to_utf8(_("Select LyX document to insert")),
1378 make_pair(string(lyx::to_utf8(_("Documents|#o#O"))),
1379 string(lyxrc.document_path)),
1380 make_pair(string(lyx::to_utf8(_("Examples|#E#e"))),
1381 string(addPath(package().system_support(), "examples"))));
1383 FileDialog::Result result =
1384 fileDlg.open(initpath,
1385 FileFilterList(lyx::to_utf8(_("LyX Documents (*.lyx)"))),
1388 if (result.first == FileDialog::Later)
1391 filename = result.second;
1393 // check selected filename
1394 if (filename.empty()) {
1395 // emit message signal.
1396 message(_("Canceled."));
1401 // Get absolute path of file and add ".lyx"
1402 // to the filename if necessary
1403 filename = fileSearch(string(), filename, "lyx");
1405 docstring const disp_fn = makeDisplayPath(filename);
1406 // emit message signal.
1407 message(bformat(_("Inserting document %1$s..."), disp_fn));
1410 Buffer buf("", false);
1411 if (::loadLyXFile(&buf, makeAbsPath(filename))) {
1412 ErrorList & el = buffer_->errorList("Parse");
1413 // Copy the inserted document error list into the current buffer one.
1414 el = buf.errorList("Parse");
1415 lyx::cap::pasteParagraphList(cursor_, buf.paragraphs(),
1416 buf.params().textclass, el);
1417 res = _("Document %1$s inserted.");
1419 res = _("Could not insert document %1$s");
1421 // emit message signal.
1422 message(bformat(res, disp_fn));
1423 buffer_->errors("Parse");
1428 void BufferView::trackChanges()
1430 bool const tracking = buffer_->params().tracking_changes;
1433 for_each(buffer_->par_iterator_begin(),
1434 buffer_->par_iterator_end(),
1435 bind(&Paragraph::trackChanges, _1, Change::UNCHANGED));
1436 buffer_->params().tracking_changes = true;
1438 // We cannot allow undos beyond the freeze point
1439 buffer_->undostack().clear();
1441 cursor_.setCursor(doc_iterator_begin(buffer_->inset()));
1442 if (lyx::find::findNextChange(this)) {
1443 showDialog("changes");
1447 for_each(buffer_->par_iterator_begin(),
1448 buffer_->par_iterator_end(),
1449 mem_fun_ref(&Paragraph::untrackChanges));
1451 buffer_->params().tracking_changes = false;
1454 buffer_->redostack().clear();