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"
25 #include "CutAndPaste.h"
27 #include "DispatchResult.h"
28 #include "EmbeddedFiles.h"
29 #include "ErrorList.h"
31 #include "FloatList.h"
32 #include "FuncRequest.h"
33 #include "FuncStatus.h"
36 #include "InsetIterator.h"
38 #include "LaTeXFeatures.h"
44 #include "MetricsInfo.h"
45 #include "Paragraph.h"
46 #include "paragraph_funcs.h"
47 #include "ParagraphParameters.h"
48 #include "ParIterator.h"
51 #include "TextClass.h"
52 #include "TextMetrics.h"
55 #include "WordLangTuple.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/Delegates.h"
64 #include "frontends/FileDialog.h"
65 #include "frontends/FontMetrics.h"
66 #include "frontends/Painter.h"
67 #include "frontends/Selection.h"
69 #include "graphics/Previews.h"
71 #include "support/convert.h"
72 #include "support/lstrings.h"
73 #include "support/FileFilterList.h"
74 #include "support/filetools.h"
75 #include "support/Package.h"
76 #include "support/types.h"
78 #include <boost/current_function.hpp>
89 using std::istringstream;
90 using std::istream_iterator;
94 using std::mem_fun_ref;
100 using support::addPath;
101 using support::bformat;
102 using support::FileFilterList;
103 using support::FileName;
104 using support::fileSearch;
105 using support::makeDisplayPath;
106 using support::makeAbsPath;
107 using support::package;
109 namespace Alert = frontend::Alert;
113 /// Return an inset of this class if it exists at the current cursor position
115 T * getInsetByCode(Cursor const & cur, InsetCode code)
117 DocIterator it = cur;
118 Inset * inset = it.nextInset();
119 if (inset && inset->lyxCode() == code)
120 return static_cast<T*>(inset);
125 bool findInset(DocIterator & dit, vector<InsetCode> const & codes,
128 bool findNextInset(DocIterator & dit, vector<InsetCode> const & codes,
129 docstring const & contents)
131 DocIterator tmpdit = dit;
134 Inset const * inset = tmpdit.nextInset();
136 && find(codes.begin(), codes.end(), inset->lyxCode()) != codes.end()
137 && (contents.empty() ||
138 static_cast<InsetCommand const *>(inset)->getFirstNonOptParam() == contents)) {
142 tmpdit.forwardInset();
149 /// Looks for next inset with one of the given codes.
150 bool findInset(DocIterator & dit, vector<InsetCode> const & codes,
154 DocIterator tmpdit = dit;
155 tmpdit.forwardInset();
160 Inset const * inset = tmpdit.nextInset();
162 && find(codes.begin(), codes.end(), inset->lyxCode()) != codes.end()) {
163 contents = static_cast<InsetCommand const *>(inset)->getFirstNonOptParam();
167 if (!findNextInset(tmpdit, codes, contents)) {
168 if (dit.depth() != 1 || dit.pit() != 0 || dit.pos() != 0) {
169 tmpdit = doc_iterator_begin(tmpdit.bottom().inset());
170 if (!findNextInset(tmpdit, codes, contents))
181 /// Looks for next inset with the given code
182 void findInset(DocIterator & dit, InsetCode code, bool same_content)
184 findInset(dit, vector<InsetCode>(1, code), same_content);
188 /// Moves cursor to the next inset with one of the given codes.
189 void gotoInset(BufferView * bv, vector<InsetCode> const & codes,
192 Cursor tmpcur = bv->cursor();
193 if (!findInset(tmpcur, codes, same_content)) {
194 bv->cursor().message(_("No more insets"));
198 tmpcur.clearSelection();
199 bv->setCursor(tmpcur);
203 /// Moves cursor to the next inset with given code.
204 void gotoInset(BufferView * bv, InsetCode code, bool same_content)
206 gotoInset(bv, vector<InsetCode>(1, code), same_content);
210 /// A map from a Text to the associated text metrics
211 typedef std::map<Text const *, TextMetrics> TextMetricsCache;
213 enum ScreenUpdateStrategy {
223 /////////////////////////////////////////////////////////////////////
227 /////////////////////////////////////////////////////////////////////
229 struct BufferView::Private
231 Private(BufferView & bv): wh_(0), cursor_(bv),
232 anchor_ref_(0), offset_ref_(0), need_centering_(false),
233 last_inset_(0), gui_(0)
237 ScrollbarParameters scrollbarParameters_;
239 ScreenUpdateStrategy update_strategy_;
241 CoordCache coord_cache_;
243 /// Estimated average par height for scrollbar.
245 /// this is used to handle XSelection events in the right manner.
254 pit_type anchor_ref_;
258 bool need_centering_;
260 /// keyboard mapping object.
263 /// last visited inset.
264 /** kept to send setMouseHover(false).
265 * Not owned, so don't delete.
269 mutable TextMetricsCache text_metrics_;
272 /** Not owned, so don't delete.
274 frontend::GuiBufferViewDelegate * gui_;
278 BufferView::BufferView(Buffer & buf)
279 : width_(0), height_(0), buffer_(buf), d(new Private(*this))
281 d->xsel_cache_.set = false;
282 d->intl_.initKeyMapper(lyxrc.use_kbmap);
284 d->cursor_.push(buffer_.inset());
285 d->cursor_.resetAnchor();
286 d->cursor_.setCurrentFont();
288 if (graphics::Previews::status() != LyXRC::PREVIEW_OFF)
289 graphics::Previews::get().generateBufferPreviews(buffer_);
293 BufferView::~BufferView()
295 // current buffer is going to be switched-off, save cursor pos
296 // Ideally, the whole cursor stack should be saved, but session
297 // currently can only handle bottom (whole document) level pit and pos.
298 // That is to say, if a cursor is in a nested inset, it will be
299 // restore to the left of the top level inset.
300 LastFilePosSection::FilePos fp;
301 fp.pit = d->cursor_.bottom().pit();
302 fp.pos = d->cursor_.bottom().pos();
303 LyX::ref().session().lastFilePos().save(buffer_.fileName(), fp);
309 Intl & BufferView::getIntl()
315 Intl const & BufferView::getIntl() const
321 CoordCache & BufferView::coordCache()
323 return d->coord_cache_;
327 CoordCache const & BufferView::coordCache() const
329 return d->coord_cache_;
333 Buffer & BufferView::buffer()
339 Buffer const & BufferView::buffer() const
345 bool BufferView::fitCursor()
347 if (cursorStatus(d->cursor_) == CUR_INSIDE) {
348 frontend::FontMetrics const & fm =
349 theFontMetrics(d->cursor_.getFont().fontInfo());
350 int const asc = fm.maxAscent();
351 int const des = fm.maxDescent();
352 Point const p = getPos(d->cursor_, d->cursor_.boundary());
353 if (p.y_ - asc >= 0 && p.y_ + des < height_)
361 void BufferView::processUpdateFlags(Update::flags flags)
363 // last_inset_ points to the last visited inset. This pointer may become
364 // invalid because of keyboard editing. Since all such operations
365 // causes screen update(), I reset last_inset_ to avoid such a problem.
367 // This is close to a hot-path.
368 LYXERR(Debug::DEBUG, "BufferView::processUpdateFlags()"
369 << "[fitcursor = " << (flags & Update::FitCursor)
370 << ", forceupdate = " << (flags & Update::Force)
371 << ", singlepar = " << (flags & Update::SinglePar)
372 << "] buffer: " << &buffer_);
374 // Update macro store
375 if (!(cursor().inMathed() && cursor().inMacroMode()))
376 buffer_.updateMacros();
378 // Now do the first drawing step if needed. This consists on updating
379 // the CoordCache in updateMetrics().
380 // The second drawing step is done in WorkArea::redraw() if needed.
382 // Case when no explicit update is requested.
384 // no need to redraw anything.
385 d->update_strategy_ = NoScreenUpdate;
389 if (flags == Update::Decoration) {
390 d->update_strategy_ = DecorationUpdate;
395 if (flags == Update::FitCursor
396 || flags == (Update::Decoration | Update::FitCursor)) {
397 bool const fit_cursor = fitCursor();
398 // tell the frontend to update the screen if needed.
404 if (flags & Update::Decoration) {
405 d->update_strategy_ = DecorationUpdate;
409 // no screen update is needed.
410 d->update_strategy_ = NoScreenUpdate;
414 bool const full_metrics = flags & Update::Force;
416 if (full_metrics || !singleParUpdate())
417 // We have to update the full screen metrics.
420 if (!(flags & Update::FitCursor)) {
425 //FIXME: updateMetrics() does not update paragraph position
426 // This is done at draw() time. So we need a redraw!
429 // The screen has already been updated thanks to the
430 // 'buffer_.changed()' call three line above. So no need
434 // The screen has been recentered around the cursor position so
441 void BufferView::updateScrollbar()
443 Text & t = buffer_.text();
444 TextMetrics & tm = d->text_metrics_[&t];
446 int const parsize = int(t.paragraphs().size() - 1);
447 if (d->anchor_ref_ > parsize) {
448 d->anchor_ref_ = parsize;
452 LYXERR(Debug::GUI, BOOST_CURRENT_FUNCTION
453 << " Updating scrollbar: height: " << t.paragraphs().size()
454 << " curr par: " << d->cursor_.bottom().pit()
455 << " default height " << defaultRowHeight());
457 // It would be better to fix the scrollbar to understand
458 // values in [0..1] and divide everything by wh
460 // estimated average paragraph height:
462 d->wh_ = height_ / 4;
464 int h = tm.parMetrics(d->anchor_ref_).height();
466 // Normalize anchor/offset (MV):
467 while (d->offset_ref_ > h && d->anchor_ref_ < parsize) {
470 h = tm.parMetrics(d->anchor_ref_).height();
472 // Look at paragraph heights on-screen
475 for (pit_type pit = d->anchor_ref_; pit <= parsize; ++pit) {
478 int const h2 = tm.parMetrics(pit).height();
484 int const hav = sumh / nh;
485 // More realistic average paragraph height
490 d->scrollbarParameters_.height = (parsize + 1) * d->wh_;
491 d->scrollbarParameters_.position = d->anchor_ref_ * d->wh_ + int(d->offset_ref_ * d->wh_ / float(h));
492 d->scrollbarParameters_.lineScrollHeight = int(d->wh_ * defaultRowHeight() / float(h));
496 ScrollbarParameters const & BufferView::scrollbarParameters() const
498 return d->scrollbarParameters_;
502 void BufferView::scrollDocView(int value)
504 LYXERR(Debug::GUI, BOOST_CURRENT_FUNCTION << "[ value = " << value << "]");
506 Text & t = buffer_.text();
507 TextMetrics & tm = d->text_metrics_[&t];
509 float const bar = value / float(d->wh_ * t.paragraphs().size());
511 d->anchor_ref_ = int(bar * t.paragraphs().size());
512 if (d->anchor_ref_ > int(t.paragraphs().size()) - 1)
513 d->anchor_ref_ = int(t.paragraphs().size()) - 1;
515 tm.redoParagraph(d->anchor_ref_);
516 int const h = tm.parMetrics(d->anchor_ref_).height();
517 d->offset_ref_ = int((bar * t.paragraphs().size() - d->anchor_ref_) * h);
523 void BufferView::setCursorFromScrollbar()
525 TextMetrics & tm = d->text_metrics_[&buffer_.text()];
527 int const height = 2 * defaultRowHeight();
528 int const first = height;
529 int const last = height_ - height;
530 Cursor & cur = d->cursor_;
532 switch (cursorStatus(cur)) {
534 // We reset the cursor because cursorStatus() does not
535 // work when the cursor is within mathed.
536 cur.reset(buffer_.inset());
537 tm.setCursorFromCoordinates(cur, 0, first);
538 cur.clearSelection();
541 // We reset the cursor because cursorStatus() does not
542 // work when the cursor is within mathed.
543 cur.reset(buffer_.inset());
544 tm.setCursorFromCoordinates(cur, 0, last);
545 cur.clearSelection();
548 int const y = getPos(cur, cur.boundary()).y_;
549 int const newy = min(last, max(y, first));
551 cur.reset(buffer_.inset());
552 tm.setCursorFromCoordinates(cur, 0, newy);
558 Change const BufferView::getCurrentChange() const
560 if (!d->cursor_.selection())
561 return Change(Change::UNCHANGED);
563 DocIterator dit = d->cursor_.selectionBegin();
564 return dit.paragraph().lookupChange(dit.pos());
568 // this could be used elsewhere as well?
569 // FIXME: This does not work within mathed!
570 CursorStatus BufferView::cursorStatus(DocIterator const & dit) const
572 Point const p = getPos(dit, dit.boundary());
575 if (p.y_ > workHeight())
581 void BufferView::saveBookmark(unsigned int idx)
583 // tenatively save bookmark, id and pos will be used to
584 // acturately locate a bookmark in a 'live' lyx session.
585 // pit and pos will be updated with bottom level pit/pos
587 LyX::ref().session().bookmarks().save(
589 d->cursor_.bottom().pit(),
590 d->cursor_.bottom().pos(),
591 d->cursor_.paragraph().id(),
596 // emit message signal.
597 message(_("Save bookmark"));
601 bool BufferView::moveToPosition(pit_type bottom_pit, pos_type bottom_pos,
602 int top_id, pos_type top_pos)
604 bool success = false;
607 d->cursor_.clearSelection();
609 // if a valid par_id is given, try it first
610 // This is the case for a 'live' bookmark when unique paragraph ID
611 // is used to track bookmarks.
613 ParIterator par = buffer_.getParFromID(top_id);
614 if (par != buffer_.par_iterator_end()) {
615 doc_it = makeDocIterator(par, min(par->size(), top_pos));
616 // Some slices of the iterator may not be
617 // reachable (e.g. closed collapsable inset)
618 // so the dociterator may need to be
619 // shortened. Otherwise, setCursor may crash
620 // lyx when the cursor can not be set to these
622 size_t const n = doc_it.depth();
623 for (size_t i = 0; i < n; ++i)
624 if (doc_it[i].inset().editable() != Inset::HIGHLY_EDITABLE) {
632 // if top_id == 0, or searching through top_id failed
633 // This is the case for a 'restored' bookmark when only bottom
634 // (document level) pit was saved. Because of this, bookmark
635 // restoration is inaccurate. If a bookmark was within an inset,
636 // it will be restored to the left of the outmost inset that contains
638 if (static_cast<size_t>(bottom_pit) < buffer_.paragraphs().size()) {
639 doc_it = doc_iterator_begin(buffer_.inset());
640 doc_it.pit() = bottom_pit;
641 doc_it.pos() = min(bottom_pos, doc_it.paragraph().size());
646 // Note: only bottom (document) level pit is set.
648 // set the current font.
649 d->cursor_.setCurrentFont();
650 // To center the screen on this new position we need the
651 // paragraph position which is computed at draw() time.
652 // So we need a redraw!
655 // We need another redraw because of the screen recentering.
663 void BufferView::translateAndInsert(char_type c, Text * t, Cursor & cur)
665 if (lyxrc.rtl_support) {
666 if (d->cursor_.real_current_font.isRightToLeft()) {
667 if (d->intl_.keymap == Intl::PRIMARY)
668 d->intl_.keyMapSec();
670 if (d->intl_.keymap == Intl::SECONDARY)
671 d->intl_.keyMapPrim();
675 d->intl_.getTransManager().translateAndInsert(c, t, cur);
679 int BufferView::workWidth() const
685 void BufferView::updateOffsetRef()
687 // No need to update d->offset_ref_ in this case.
688 if (!d->need_centering_)
691 // We are not properly started yet, delay until resizing is
696 CursorSlice & bot = d->cursor_.bottom();
697 TextMetrics & tm = d->text_metrics_[bot.text()];
698 ParagraphMetrics const & pm = tm.parMetrics(bot.pit());
699 int y = coordOffset(d->cursor_, d->cursor_.boundary()).y_;
700 d->offset_ref_ = y + pm.ascent() - height_ / 2;
702 d->need_centering_ = false;
706 void BufferView::center()
708 d->anchor_ref_ = d->cursor_.bottom().pit();
709 d->need_centering_ = true;
713 FuncStatus BufferView::getStatus(FuncRequest const & cmd)
717 Cursor & cur = d->cursor_;
719 switch (cmd.action) {
722 flag.enabled(buffer_.undo().hasUndoStack());
725 flag.enabled(buffer_.undo().hasRedoStack());
727 case LFUN_FILE_INSERT:
728 case LFUN_FILE_INSERT_PLAINTEXT_PARA:
729 case LFUN_FILE_INSERT_PLAINTEXT:
730 case LFUN_BOOKMARK_SAVE:
731 // FIXME: Actually, these LFUNS should be moved to Text
732 flag.enabled(cur.inTexted());
734 case LFUN_FONT_STATE:
735 case LFUN_LABEL_INSERT:
736 case LFUN_INFO_INSERT:
737 case LFUN_PARAGRAPH_GOTO:
739 case LFUN_REFERENCE_NEXT:
741 case LFUN_WORD_REPLACE:
744 case LFUN_MARK_TOGGLE:
745 case LFUN_SCREEN_RECENTER:
746 case LFUN_BIBTEX_DATABASE_ADD:
747 case LFUN_BIBTEX_DATABASE_DEL:
748 case LFUN_WORDS_COUNT:
749 case LFUN_NEXT_INSET_TOGGLE:
753 case LFUN_LABEL_GOTO: {
754 flag.enabled(!cmd.argument().empty()
755 || getInsetByCode<InsetRef>(cur, REF_CODE));
759 case LFUN_CHANGES_TRACK:
761 flag.setOnOff(buffer_.params().trackChanges);
764 case LFUN_CHANGES_OUTPUT:
766 flag.setOnOff(buffer_.params().outputChanges);
769 case LFUN_CHANGES_MERGE:
770 case LFUN_CHANGE_NEXT:
771 case LFUN_ALL_CHANGES_ACCEPT:
772 case LFUN_ALL_CHANGES_REJECT:
773 // TODO: context-sensitive enabling of LFUNs
774 // In principle, these command should only be enabled if there
775 // is a change in the document. However, without proper
776 // optimizations, this will inevitably result in poor performance.
780 case LFUN_BUFFER_TOGGLE_COMPRESSION: {
781 flag.setOnOff(buffer_.params().compressed);
785 case LFUN_BUFFER_TOGGLE_EMBEDDING: {
786 flag.setOnOff(buffer_.params().embedded);
791 case LFUN_SCREEN_DOWN:
795 // FIXME: LFUN_SCREEN_DOWN_SELECT should be removed from
796 // everywhere else before this can enabled:
797 case LFUN_SCREEN_UP_SELECT:
798 case LFUN_SCREEN_DOWN_SELECT:
802 case LFUN_LAYOUT_TABULAR:
803 flag.enabled(cur.innerInsetOfType(TABULAR_CODE));
807 case LFUN_LAYOUT_PARAGRAPH:
808 flag.enabled(cur.inset().forceDefaultParagraphs(cur.idx()));
811 case LFUN_INSET_SETTINGS: {
812 InsetCode code = cur.inset().lyxCode();
816 enable = cmd.argument() == "tabular";
819 enable = cmd.argument() == "ert";
822 enable = cmd.argument() == "float";
825 enable = cmd.argument() == "wrap";
828 enable = cmd.argument() == "note";
831 enable = cmd.argument() == "branch";
834 enable = cmd.argument() == "box";
837 enable = cmd.argument() == "listings";
842 flag.enabled(enable);
846 case LFUN_DIALOG_SHOW_NEW_INSET:
847 flag.enabled(cur.inset().lyxCode() != ERT_CODE &&
848 cur.inset().lyxCode() != LISTINGS_CODE);
849 if (cur.inset().lyxCode() == CAPTION_CODE) {
851 if (cur.inset().getStatus(cur, cmd, flag))
864 Update::flags BufferView::dispatch(FuncRequest const & cmd)
866 //lyxerr << BOOST_CURRENT_FUNCTION
867 // << [ cmd = " << cmd << "]" << endl;
869 // Make sure that the cached BufferView is correct.
870 LYXERR(Debug::ACTION, BOOST_CURRENT_FUNCTION
871 << " action[" << cmd.action << ']'
872 << " arg[" << to_utf8(cmd.argument()) << ']'
873 << " x[" << cmd.x << ']'
874 << " y[" << cmd.y << ']'
875 << " button[" << cmd.button() << ']');
877 Cursor & cur = d->cursor_;
878 // Default Update flags.
879 Update::flags updateFlags = Update::Force | Update::FitCursor;
881 switch (cmd.action) {
884 cur.message(_("Undo"));
885 cur.clearSelection();
886 if (!cur.textUndo()) {
887 cur.message(_("No further undo information"));
888 updateFlags = Update::None;
893 cur.message(_("Redo"));
894 cur.clearSelection();
895 if (!cur.textRedo()) {
896 cur.message(_("No further redo information"));
897 updateFlags = Update::None;
901 case LFUN_FILE_INSERT:
903 menuInsertLyXFile(to_utf8(cmd.argument()));
906 case LFUN_FILE_INSERT_PLAINTEXT_PARA:
908 insertPlaintextFile(to_utf8(cmd.argument()), true);
911 case LFUN_FILE_INSERT_PLAINTEXT:
913 insertPlaintextFile(to_utf8(cmd.argument()), false);
916 case LFUN_FONT_STATE:
917 cur.message(cur.currentState());
920 case LFUN_BOOKMARK_SAVE:
921 saveBookmark(convert<unsigned int>(to_utf8(cmd.argument())));
924 case LFUN_LABEL_GOTO: {
925 docstring label = cmd.argument();
928 getInsetByCode<InsetRef>(d->cursor_,
931 label = inset->getParam("reference");
932 // persistent=false: use temp_bookmark
942 case LFUN_PARAGRAPH_GOTO: {
943 int const id = convert<int>(to_utf8(cmd.argument()));
945 for (Buffer * b = &buffer_; i == 0 || b != &buffer_;
946 b = theBufferList().next(b)) {
948 ParIterator par = b->getParFromID(id);
949 if (par == b->par_iterator_end()) {
950 LYXERR(Debug::INFO, "No matching paragraph found! [" << id << "].");
952 LYXERR(Debug::INFO, "Paragraph " << par->id()
953 << " found in buffer `"
954 << b->absFileName() << "'.");
958 setCursor(makeDocIterator(par, 0));
960 // Switch to other buffer view and resend cmd
961 theLyXFunc().dispatch(FuncRequest(
962 LFUN_BUFFER_SWITCH, b->absFileName()));
963 theLyXFunc().dispatch(cmd);
964 updateFlags = Update::None;
974 gotoInset(this, NOTE_CODE, false);
977 case LFUN_REFERENCE_NEXT: {
978 vector<InsetCode> tmp;
979 tmp.push_back(LABEL_CODE);
980 tmp.push_back(REF_CODE);
981 gotoInset(this, tmp, true);
985 case LFUN_CHANGES_TRACK:
986 buffer_.params().trackChanges = !buffer_.params().trackChanges;
989 case LFUN_CHANGES_OUTPUT:
990 buffer_.params().outputChanges = !buffer_.params().outputChanges;
991 if (buffer_.params().outputChanges) {
992 bool dvipost = LaTeXFeatures::isAvailable("dvipost");
993 bool xcolorsoul = LaTeXFeatures::isAvailable("soul") &&
994 LaTeXFeatures::isAvailable("xcolor");
996 if (!dvipost && !xcolorsoul) {
997 Alert::warning(_("Changes not shown in LaTeX output"),
998 _("Changes will not be highlighted in LaTeX output, "
999 "because neither dvipost nor xcolor/soul are installed.\n"
1000 "Please install these packages or redefine "
1001 "\\lyxadded and \\lyxdeleted in the LaTeX preamble."));
1002 } else if (!xcolorsoul) {
1003 Alert::warning(_("Changes not shown in LaTeX output"),
1004 _("Changes will not be highlighted in LaTeX output "
1005 "when using pdflatex, because xcolor and soul are not installed.\n"
1006 "Please install both packages or redefine "
1007 "\\lyxadded and \\lyxdeleted in the LaTeX preamble."));
1012 case LFUN_CHANGE_NEXT:
1013 findNextChange(this);
1016 case LFUN_CHANGES_MERGE:
1017 if (findNextChange(this))
1018 showDialog("changes");
1021 case LFUN_ALL_CHANGES_ACCEPT:
1022 // select complete document
1023 d->cursor_.reset(buffer_.inset());
1024 d->cursor_.selHandle(true);
1025 buffer_.text().cursorBottom(d->cursor_);
1026 // accept everything in a single step to support atomic undo
1027 buffer_.text().acceptOrRejectChanges(d->cursor_, Text::ACCEPT);
1030 case LFUN_ALL_CHANGES_REJECT:
1031 // select complete document
1032 d->cursor_.reset(buffer_.inset());
1033 d->cursor_.selHandle(true);
1034 buffer_.text().cursorBottom(d->cursor_);
1035 // reject everything in a single step to support atomic undo
1036 // Note: reject does not work recursively; the user may have to repeat the operation
1037 buffer_.text().acceptOrRejectChanges(d->cursor_, Text::REJECT);
1040 case LFUN_WORD_FIND:
1044 case LFUN_WORD_REPLACE: {
1045 bool has_deleted = false;
1046 if (cur.selection()) {
1047 DocIterator beg = cur.selectionBegin();
1048 DocIterator end = cur.selectionEnd();
1049 if (beg.pit() == end.pit()) {
1050 for (pos_type p = beg.pos() ; p < end.pos() ; ++p) {
1051 if (cur.paragraph().isDeleted(p))
1056 replace(this, cmd, has_deleted);
1061 cur.clearSelection();
1063 cur.message(from_utf8(N_("Mark off")));
1067 cur.clearSelection();
1070 cur.message(from_utf8(N_("Mark on")));
1073 case LFUN_MARK_TOGGLE:
1074 cur.clearSelection();
1077 cur.message(from_utf8(N_("Mark removed")));
1080 cur.message(from_utf8(N_("Mark set")));
1085 case LFUN_SCREEN_RECENTER:
1089 case LFUN_BIBTEX_DATABASE_ADD: {
1090 Cursor tmpcur = d->cursor_;
1091 findInset(tmpcur, BIBTEX_CODE, false);
1092 InsetBibtex * inset = getInsetByCode<InsetBibtex>(tmpcur,
1095 if (inset->addDatabase(to_utf8(cmd.argument())))
1096 buffer_.updateBibfilesCache();
1101 case LFUN_BIBTEX_DATABASE_DEL: {
1102 Cursor tmpcur = d->cursor_;
1103 findInset(tmpcur, BIBTEX_CODE, false);
1104 InsetBibtex * inset = getInsetByCode<InsetBibtex>(tmpcur,
1107 if (inset->delDatabase(to_utf8(cmd.argument())))
1108 buffer_.updateBibfilesCache();
1113 case LFUN_WORDS_COUNT: {
1114 DocIterator from, to;
1115 if (cur.selection()) {
1116 from = cur.selectionBegin();
1117 to = cur.selectionEnd();
1119 from = doc_iterator_begin(buffer_.inset());
1120 to = doc_iterator_end(buffer_.inset());
1122 int const count = countWords(from, to);
1125 if (cur.selection())
1126 message = bformat(_("%1$d words in selection."),
1129 message = bformat(_("%1$d words in document."),
1133 if (cur.selection())
1134 message = _("One word in selection.");
1136 message = _("One word in document.");
1139 Alert::information(_("Count words"), message);
1143 case LFUN_BUFFER_TOGGLE_COMPRESSION:
1144 // turn compression on/off
1145 buffer_.params().compressed = !buffer_.params().compressed;
1148 case LFUN_BUFFER_TOGGLE_EMBEDDING:
1149 // turn embedding on/off
1150 buffer_.embeddedFiles().enable(!buffer_.params().embedded);
1153 case LFUN_NEXT_INSET_TOGGLE: {
1154 // this is the real function we want to invoke
1155 FuncRequest tmpcmd = FuncRequest(LFUN_INSET_TOGGLE, cmd.origin);
1156 // if there is an inset at cursor, see whether it
1158 Inset * inset = cur.nextInset();
1160 if (inset->isActive()) {
1161 Cursor tmpcur = cur;
1162 tmpcur.pushBackward(*inset);
1163 inset->dispatch(tmpcur, tmpcmd);
1164 if (tmpcur.result().dispatched()) {
1167 } else if (inset->editable() == Inset::IS_EDITABLE) {
1168 inset->edit(cur, true);
1171 // if it did not work, try the underlying inset.
1172 if (!cur.result().dispatched())
1173 cur.dispatch(tmpcmd);
1175 if (cur.result().dispatched())
1176 cur.clearSelection();
1181 case LFUN_SCREEN_UP:
1182 case LFUN_SCREEN_DOWN: {
1183 Point p = getPos(cur, cur.boundary());
1184 if (p.y_ < 0 || p.y_ > height_) {
1185 // The cursor is off-screen so recenter before proceeding.
1188 //FIXME: updateMetrics() does not update paragraph position
1189 // This is done at draw() time. So we need a redraw!
1190 // But no screen update is needed.
1191 d->update_strategy_ = NoScreenUpdate;
1193 p = getPos(cur, cur.boundary());
1195 scroll(cmd.action == LFUN_SCREEN_UP? - height_ : height_);
1196 cur.reset(buffer_.inset());
1197 d->text_metrics_[&buffer_.text()].editXY(cur, p.x_, p.y_);
1198 //FIXME: what to do with cur.x_target()?
1200 // The metrics are already up to date. see scroll()
1201 updateFlags = Update::None;
1205 case LFUN_SCREEN_UP_SELECT:
1206 case LFUN_SCREEN_DOWN_SELECT: {
1207 cur.selHandle(true);
1208 size_t initial_depth = cur.depth();
1209 Point const p = getPos(cur, cur.boundary());
1210 scroll(cmd.action == LFUN_SCREEN_UP_SELECT? - height_ : height_);
1211 // FIXME: We need to verify if the cursor stayed within an inset...
1212 //cur.reset(buffer_.inset());
1213 d->text_metrics_[&buffer_.text()].editXY(cur, p.x_, p.y_);
1215 while (cur.depth() > initial_depth) {
1218 // FIXME: we need to do a redraw again because of the selection
1219 // But no screen update is needed.
1220 d->update_strategy_ = NoScreenUpdate;
1222 updateFlags = Update::Force | Update::FitCursor;
1227 updateFlags = Update::None;
1234 docstring const BufferView::requestSelection()
1236 Cursor & cur = d->cursor_;
1238 if (!cur.selection()) {
1239 d->xsel_cache_.set = false;
1243 if (!d->xsel_cache_.set ||
1244 cur.top() != d->xsel_cache_.cursor ||
1245 cur.anchor_.top() != d->xsel_cache_.anchor)
1247 d->xsel_cache_.cursor = cur.top();
1248 d->xsel_cache_.anchor = cur.anchor_.top();
1249 d->xsel_cache_.set = cur.selection();
1250 return cur.selectionAsString(false);
1256 void BufferView::clearSelection()
1258 d->cursor_.clearSelection();
1259 // Clear the selection buffer. Otherwise a subsequent
1260 // middle-mouse-button paste would use the selection buffer,
1261 // not the more current external selection.
1262 cap::clearSelection();
1263 d->xsel_cache_.set = false;
1264 // The buffer did not really change, but this causes the
1265 // redraw we need because we cleared the selection above.
1270 void BufferView::resize(int width, int height)
1272 // Update from work area
1280 Inset const * BufferView::getCoveringInset(Text const & text, int x, int y)
1282 TextMetrics & tm = d->text_metrics_[&text];
1283 Inset * inset = tm.checkInsetHit(x, y);
1287 if (!inset->descendable())
1288 // No need to go further down if the inset is not
1292 size_t cell_number = inset->nargs();
1293 // Check all the inner cell.
1294 for (size_t i = 0; i != cell_number; ++i) {
1295 Text const * inner_text = inset->getText(i);
1298 Inset const * inset_deeper =
1299 getCoveringInset(*inner_text, x, y);
1301 return inset_deeper;
1309 void BufferView::mouseEventDispatch(FuncRequest const & cmd0)
1311 //lyxerr << BOOST_CURRENT_FUNCTION << "[ cmd0 " << cmd0 << "]" << endl;
1313 // This is only called for mouse related events including
1314 // LFUN_FILE_OPEN generated by drag-and-drop.
1315 FuncRequest cmd = cmd0;
1318 cur.push(buffer_.inset());
1319 cur.selection() = d->cursor_.selection();
1321 // Either the inset under the cursor or the
1322 // surrounding Text will handle this event.
1324 // make sure we stay within the screen...
1325 cmd.y = min(max(cmd.y, -1), height_);
1327 if (cmd.action == LFUN_MOUSE_MOTION && cmd.button() == mouse_button::none) {
1329 // Get inset under mouse, if there is one.
1330 Inset const * covering_inset =
1331 getCoveringInset(buffer_.text(), cmd.x, cmd.y);
1332 if (covering_inset == d->last_inset_)
1333 // Same inset, no need to do anything...
1336 bool need_redraw = false;
1337 // const_cast because of setMouseHover().
1338 Inset * inset = const_cast<Inset *>(covering_inset);
1340 // Remove the hint on the last hovered inset (if any).
1341 need_redraw |= d->last_inset_->setMouseHover(false);
1343 // Highlighted the newly hovered inset (if any).
1344 need_redraw |= inset->setMouseHover(true);
1345 d->last_inset_ = inset;
1349 LYXERR(Debug::PAINTING, "Mouse hover detected at: ("
1350 << cmd.x << ", " << cmd.y << ")");
1352 d->update_strategy_ = DecorationUpdate;
1354 // This event (moving without mouse click) is not passed further.
1355 // This should be changed if it is further utilized.
1360 // Build temporary cursor.
1361 Inset * inset = d->text_metrics_[&buffer_.text()].editXY(cur, cmd.x, cmd.y);
1363 // Put anchor at the same position.
1366 // Try to dispatch to an non-editable inset near this position
1367 // via the temp cursor. If the inset wishes to change the real
1368 // cursor it has to do so explicitly by using
1369 // cur.bv().cursor() = cur; (or similar)
1371 inset->dispatch(cur, cmd);
1373 // Now dispatch to the temporary cursor. If the real cursor should
1374 // be modified, the inset's dispatch has to do so explicitly.
1375 if (!cur.result().dispatched())
1378 //Do we have a selection?
1379 theSelection().haveSelection(cursor().selection());
1381 // If the command has been dispatched,
1382 if (cur.result().dispatched()
1383 // an update is asked,
1384 && cur.result().update())
1385 processUpdateFlags(cur.result().update());
1389 void BufferView::scroll(int y)
1398 void BufferView::scrollDown(int offset)
1400 Text * text = &buffer_.text();
1401 TextMetrics & tm = d->text_metrics_[text];
1402 int ymax = height_ + offset;
1404 std::pair<pit_type, ParagraphMetrics const *> last = tm.last();
1405 int bottom_pos = last.second->position() + last.second->descent();
1406 if (last.first + 1 == int(text->paragraphs().size())) {
1407 if (bottom_pos <= height_)
1409 offset = min(offset, bottom_pos - height_);
1412 if (bottom_pos > ymax)
1414 tm.newParMetricsDown();
1416 d->offset_ref_ += offset;
1422 void BufferView::scrollUp(int offset)
1424 Text * text = &buffer_.text();
1425 TextMetrics & tm = d->text_metrics_[text];
1426 int ymin = - offset;
1428 std::pair<pit_type, ParagraphMetrics const *> first = tm.first();
1429 int top_pos = first.second->position() - first.second->ascent();
1430 if (first.first == 0) {
1433 offset = min(offset, - top_pos);
1438 tm.newParMetricsUp();
1440 d->offset_ref_ -= offset;
1446 void BufferView::setCursorFromRow(int row)
1451 buffer_.texrow().getIdFromRow(row, tmpid, tmppos);
1453 d->cursor_.reset(buffer_.inset());
1455 buffer_.text().setCursor(d->cursor_, 0, 0);
1457 buffer_.text().setCursor(d->cursor_, buffer_.getParFromID(tmpid).pit(), tmppos);
1461 void BufferView::gotoLabel(docstring const & label)
1463 for (InsetIterator it = inset_iterator_begin(buffer_.inset()); it; ++it) {
1464 vector<docstring> labels;
1465 it->getLabelList(buffer_, labels);
1466 if (std::find(labels.begin(), labels.end(), label) != labels.end()) {
1468 processUpdateFlags(Update::FitCursor);
1475 TextMetrics const & BufferView::textMetrics(Text const * t) const
1477 return const_cast<BufferView *>(this)->textMetrics(t);
1481 TextMetrics & BufferView::textMetrics(Text const * t)
1483 TextMetricsCache::iterator tmc_it = d->text_metrics_.find(t);
1484 if (tmc_it == d->text_metrics_.end()) {
1485 tmc_it = d->text_metrics_.insert(
1486 make_pair(t, TextMetrics(this, const_cast<Text *>(t)))).first;
1488 return tmc_it->second;
1492 ParagraphMetrics const & BufferView::parMetrics(Text const * t,
1495 return textMetrics(t).parMetrics(pit);
1499 int BufferView::workHeight() const
1505 void BufferView::setCursor(DocIterator const & dit)
1507 size_t const n = dit.depth();
1508 for (size_t i = 0; i < n; ++i)
1509 dit[i].inset().edit(d->cursor_, true);
1511 d->cursor_.setCursor(dit);
1512 d->cursor_.selection() = false;
1516 bool BufferView::checkDepm(Cursor & cur, Cursor & old)
1518 // Would be wrong to delete anything if we have a selection.
1519 if (cur.selection())
1522 bool need_anchor_change = false;
1523 bool changed = d->cursor_.text()->deleteEmptyParagraphMechanism(cur, old,
1524 need_anchor_change);
1526 if (need_anchor_change)
1532 updateLabels(buffer_);
1540 bool BufferView::mouseSetCursor(Cursor & cur, bool select)
1542 BOOST_ASSERT(&cur.bv() == this);
1545 // this event will clear selection so we save selection for
1546 // persistent selection
1547 cap::saveSelection(cursor());
1549 // Has the cursor just left the inset?
1550 bool badcursor = false;
1551 bool leftinset = (&d->cursor_.inset() != &cur.inset());
1553 badcursor = notifyCursorLeaves(d->cursor_, cur);
1555 // FIXME: shift-mouse selection doesn't work well across insets.
1556 bool do_selection = select && &d->cursor_.anchor().inset() == &cur.inset();
1558 // do the dEPM magic if needed
1559 // FIXME: (1) move this to InsetText::notifyCursorLeaves?
1560 // FIXME: (2) if we had a working InsetText::notifyCursorLeaves,
1561 // the leftinset bool would not be necessary (badcursor instead).
1562 bool update = leftinset;
1563 if (!do_selection && !badcursor && d->cursor_.inTexted())
1564 update |= checkDepm(cur, d->cursor_);
1566 // if the cursor was in an empty script inset and the new
1567 // position is in the nucleus of the inset, notifyCursorLeaves
1568 // will kill the script inset itself. So we check all the
1569 // elements of the cursor to make sure that they are correct.
1570 // For an example, see bug 2933:
1571 // http://bugzilla.lyx.org/show_bug.cgi?id=2933
1572 // The code below could maybe be moved to a DocIterator method.
1573 //lyxerr << "cur before " << cur <<std::endl;
1574 DocIterator dit(cur.inset());
1575 dit.push_back(cur.bottom());
1577 while (i < cur.depth() && dit.nextInset() == &cur[i].inset()) {
1578 dit.push_back(cur[i]);
1581 //lyxerr << "5 cur after" << dit <<std::endl;
1583 d->cursor_.setCursor(dit);
1584 d->cursor_.boundary(cur.boundary());
1586 d->cursor_.setSelection();
1588 d->cursor_.clearSelection();
1590 d->cursor_.finishUndo();
1591 d->cursor_.setCurrentFont();
1596 void BufferView::putSelectionAt(DocIterator const & cur,
1597 int length, bool backwards)
1599 d->cursor_.clearSelection();
1605 d->cursor_.pos() += length;
1606 d->cursor_.setSelection(d->cursor_, -length);
1608 d->cursor_.setSelection(d->cursor_, length);
1613 Cursor & BufferView::cursor()
1619 Cursor const & BufferView::cursor() const
1625 pit_type BufferView::anchor_ref() const
1627 return d->anchor_ref_;
1631 bool BufferView::singleParUpdate()
1633 Text & buftext = buffer_.text();
1634 pit_type const bottom_pit = d->cursor_.bottom().pit();
1635 TextMetrics & tm = textMetrics(&buftext);
1636 int old_height = tm.parMetrics(bottom_pit).height();
1638 // In Single Paragraph mode, rebreak only
1639 // the (main text, not inset!) paragraph containing the cursor.
1640 // (if this paragraph contains insets etc., rebreaking will
1641 // recursively descend)
1642 tm.redoParagraph(bottom_pit);
1643 ParagraphMetrics const & pm = tm.parMetrics(bottom_pit);
1644 if (pm.height() != old_height)
1645 // Paragraph height has changed so we cannot proceed to
1646 // the singlePar optimisation.
1649 d->update_strategy_ = SingleParUpdate;
1651 LYXERR(Debug::PAINTING, BOOST_CURRENT_FUNCTION
1652 << "\ny1: " << pm.position() - pm.ascent()
1653 << " y2: " << pm.position() + pm.descent()
1654 << " pit: " << bottom_pit
1655 << " singlepar: 1");
1660 void BufferView::updateMetrics()
1662 Text & buftext = buffer_.text();
1663 pit_type const npit = int(buftext.paragraphs().size());
1665 if (d->anchor_ref_ > int(npit - 1)) {
1666 d->anchor_ref_ = int(npit - 1);
1670 // Clear out the position cache in case of full screen redraw,
1671 d->coord_cache_.clear();
1673 // Clear out paragraph metrics to avoid having invalid metrics
1674 // in the cache from paragraphs not relayouted below
1675 // The complete text metrics will be redone.
1676 d->text_metrics_.clear();
1678 TextMetrics & tm = textMetrics(&buftext);
1680 pit_type const pit = d->anchor_ref_;
1684 // Rebreak anchor paragraph.
1685 tm.redoParagraph(pit);
1687 // Take care of anchor offset if case a recentering is needed.
1690 int y0 = tm.parMetrics(pit).ascent() - d->offset_ref_;
1692 // Redo paragraphs above anchor if necessary.
1694 while (y1 > 0 && pit1 > 0) {
1695 y1 -= tm.parMetrics(pit1).ascent();
1697 tm.redoParagraph(pit1);
1698 y1 -= tm.parMetrics(pit1).descent();
1701 // Take care of ascent of first line
1702 y1 -= tm.parMetrics(pit1).ascent();
1704 // Normalize anchor for next time
1705 d->anchor_ref_ = pit1;
1706 d->offset_ref_ = -y1;
1708 // Grey at the beginning is ugly
1709 if (pit1 == 0 && y1 > 0) {
1715 // Redo paragraphs below the anchor if necessary.
1717 while (y2 < height_ && pit2 < int(npit) - 1) {
1718 y2 += tm.parMetrics(pit2).descent();
1720 tm.redoParagraph(pit2);
1721 y2 += tm.parMetrics(pit2).ascent();
1724 // Take care of descent of last line
1725 y2 += tm.parMetrics(pit2).descent();
1727 LYXERR(Debug::PAINTING, BOOST_CURRENT_FUNCTION
1730 << " pit1: " << pit1
1731 << " pit2: " << pit2
1732 << " npit: " << npit
1733 << " singlepar: 0");
1735 d->update_strategy_ = FullScreenUpdate;
1737 if (lyxerr.debugging(Debug::WORKAREA)) {
1738 LYXERR(Debug::WORKAREA, "BufferView::updateMetrics");
1739 d->coord_cache_.dump();
1744 void BufferView::menuInsertLyXFile(string const & filenm)
1746 BOOST_ASSERT(d->cursor_.inTexted());
1747 string filename = filenm;
1749 if (filename.empty()) {
1750 // Launch a file browser
1752 string initpath = lyxrc.document_path;
1753 string const trypath = buffer_.filePath();
1754 // If directory is writeable, use this as default.
1755 if (FileName(trypath).isDirWritable())
1759 FileDialog dlg(_("Select LyX document to insert"), LFUN_FILE_INSERT);
1760 dlg.setButton1(_("Documents|#o#O"), from_utf8(lyxrc.document_path));
1761 dlg.setButton2(_("Examples|#E#e"),
1762 from_utf8(addPath(package().system_support().absFilename(),
1765 FileDialog::Result result =
1766 dlg.open(from_utf8(initpath),
1767 FileFilterList(_("LyX Documents (*.lyx)")),
1770 if (result.first == FileDialog::Later)
1774 filename = to_utf8(result.second);
1776 // check selected filename
1777 if (filename.empty()) {
1778 // emit message signal.
1779 message(_("Canceled."));
1784 // Get absolute path of file and add ".lyx"
1785 // to the filename if necessary
1786 filename = fileSearch(string(), filename, "lyx").absFilename();
1788 docstring const disp_fn = makeDisplayPath(filename);
1789 // emit message signal.
1790 message(bformat(_("Inserting document %1$s..."), disp_fn));
1793 Buffer buf("", false);
1794 if (buf.loadLyXFile(FileName(filename))) {
1795 ErrorList & el = buffer_.errorList("Parse");
1796 // Copy the inserted document error list into the current buffer one.
1797 el = buf.errorList("Parse");
1798 buffer_.undo().recordUndo(d->cursor_);
1799 cap::pasteParagraphList(d->cursor_, buf.paragraphs(),
1800 buf.params().getTextClassPtr(), el);
1801 res = _("Document %1$s inserted.");
1803 res = _("Could not insert document %1$s");
1806 // emit message signal.
1807 message(bformat(res, disp_fn));
1808 buffer_.errors("Parse");
1813 Point BufferView::coordOffset(DocIterator const & dit, bool boundary) const
1819 // Addup contribution of nested insets, from inside to outside,
1820 // keeping the outer paragraph for a special handling below
1821 for (size_t i = dit.depth() - 1; i >= 1; --i) {
1822 CursorSlice const & sl = dit[i];
1826 // get relative position inside sl.inset()
1827 sl.inset().cursorPos(*this, sl, boundary && (i + 1 == dit.depth()), xx, yy);
1829 // Make relative position inside of the edited inset relative to sl.inset()
1833 // In case of an RTL inset, the edited inset will be positioned to the left
1836 bool boundary_i = boundary && i + 1 == dit.depth();
1837 bool rtl = textMetrics(sl.text()).isRTL(sl, boundary_i);
1842 // remember width for the case that sl.inset() is positioned in an RTL inset
1843 if (i && dit[i - 1].text()) {
1844 // If this Inset is inside a Text Inset, retrieve the Dimension
1845 // from the containing text instead of using Inset::dimension() which
1846 // might not be implemented.
1847 // FIXME (Abdel 23/09/2007): this is a bit messy because of the
1848 // elimination of Inset::dim_ cache. This coordOffset() method needs
1849 // to be rewritten in light of the new design.
1850 Dimension const & dim = parMetrics(dit[i - 1].text(),
1851 dit[i - 1].pit()).insetDimension(&sl.inset());
1854 Dimension const dim = sl.inset().dimension(*this);
1858 //lyxerr << "Cursor::getPos, i: "
1859 // << i << " x: " << xx << " y: " << y << endl;
1862 // Add contribution of initial rows of outermost paragraph
1863 CursorSlice const & sl = dit[0];
1864 TextMetrics const & tm = textMetrics(sl.text());
1865 ParagraphMetrics const & pm = tm.parMetrics(sl.pit());
1866 BOOST_ASSERT(!pm.rows().empty());
1867 y -= pm.rows()[0].ascent();
1869 // FIXME: document this mess
1871 if (sl.pos() > 0 && dit.depth() == 1) {
1873 if (pos && boundary)
1875 // lyxerr << "coordOffset: boundary:" << boundary << " depth:" << dit.depth() << " pos:" << pos << " sl.pos:" << sl.pos() << std::endl;
1876 rend = pm.pos2row(pos);
1878 rend = pm.pos2row(sl.pos());
1880 size_t rend = pm.pos2row(sl.pos());
1882 for (size_t rit = 0; rit != rend; ++rit)
1883 y += pm.rows()[rit].height();
1884 y += pm.rows()[rend].ascent();
1886 TextMetrics const & bottom_tm = textMetrics(dit.bottom().text());
1888 // Make relative position from the nested inset now bufferview absolute.
1889 int xx = bottom_tm.cursorX(dit.bottom(), boundary && dit.depth() == 1);
1892 // In the RTL case place the nested inset at the left of the cursor in
1893 // the outer paragraph
1894 bool boundary_1 = boundary && 1 == dit.depth();
1895 bool rtl = bottom_tm.isRTL(dit.bottom(), boundary_1);
1903 Point BufferView::getPos(DocIterator const & dit, bool boundary) const
1905 CursorSlice const & bot = dit.bottom();
1906 TextMetrics const & tm = textMetrics(bot.text());
1907 if (!tm.has(bot.pit()))
1908 return Point(-1, -1);
1910 Point p = coordOffset(dit, boundary); // offset from outer paragraph
1911 p.y_ += tm.parMetrics(bot.pit()).position();
1916 void BufferView::draw(frontend::Painter & pain)
1918 LYXERR(Debug::PAINTING, "\t\t*** START DRAWING ***");
1919 Text & text = buffer_.text();
1920 TextMetrics const & tm = d->text_metrics_[&text];
1921 int const y = - d->offset_ref_ + tm.parMetrics(d->anchor_ref_).ascent();
1922 PainterInfo pi(this, pain);
1924 switch (d->update_strategy_) {
1926 case NoScreenUpdate:
1927 // If no screen painting is actually needed, only some the different
1928 // coordinates of insets and paragraphs needs to be updated.
1929 pi.full_repaint = true;
1930 pi.pain.setDrawingEnabled(false);
1934 case SingleParUpdate:
1935 pi.full_repaint = false;
1936 // In general, only the current row of the outermost paragraph
1937 // will be redrawn. Particular cases where selection spans
1938 // multiple paragraph are correctly detected in TextMetrics.
1942 case DecorationUpdate:
1943 // FIXME: We should also distinguish DecorationUpdate to avoid text
1944 // drawing if possible. This is not possible to do easily right now
1945 // because of the single backing pixmap.
1947 case FullScreenUpdate:
1948 // The whole screen, including insets, will be refreshed.
1949 pi.full_repaint = true;
1951 // Clear background.
1952 pain.fillRectangle(0, 0, width_, height_,
1953 buffer_.inset().backgroundColor());
1956 // and possibly grey out below
1957 std::pair<pit_type, ParagraphMetrics const *> lastpm = tm.last();
1958 int const y2 = lastpm.second->position() + lastpm.second->descent();
1960 pain.fillRectangle(0, y2, width_, height_ - y2, Color_bottomarea);
1964 LYXERR(Debug::PAINTING, "\n\t\t*** END DRAWING ***");
1968 void BufferView::message(docstring const & msg)
1971 d->gui_->message(msg);
1975 void BufferView::showDialog(std::string const & name)
1978 d->gui_->showDialog(name, string());
1982 void BufferView::showDialog(std::string const & name,
1983 std::string const & data, Inset * inset)
1986 d->gui_->showDialog(name, data, inset);
1990 void BufferView::updateDialog(std::string const & name, std::string const & data)
1993 d->gui_->updateDialog(name, data);
1997 void BufferView::setGuiDelegate(frontend::GuiBufferViewDelegate * gui)
2003 // FIXME: Move this out of BufferView again
2004 docstring BufferView::contentsOfPlaintextFile(string const & f,
2009 if (fname.empty()) {
2010 FileDialog dlg(_("Select file to insert"),
2012 ? LFUN_FILE_INSERT_PLAINTEXT_PARA
2013 : LFUN_FILE_INSERT_PLAINTEXT) );
2015 FileDialog::Result result =
2016 dlg.open(from_utf8(buffer().filePath()),
2017 FileFilterList(), docstring());
2019 if (result.first == FileDialog::Later)
2022 if (result.second.empty())
2025 fname = makeAbsPath(to_utf8(result.second));
2028 if (!fname.isReadableFile()) {
2029 docstring const error = from_ascii(strerror(errno));
2030 docstring const file = makeDisplayPath(fname.absFilename(), 50);
2031 docstring const text =
2032 bformat(_("Could not read the specified document\n"
2033 "%1$s\ndue to the error: %2$s"), file, error);
2034 Alert::error(_("Could not read file"), text);
2038 ifstream ifs(fname.toFilesystemEncoding().c_str());
2040 docstring const error = from_ascii(strerror(errno));
2041 docstring const file = makeDisplayPath(fname.absFilename(), 50);
2042 docstring const text =
2043 bformat(_("Could not open the specified document\n"
2044 "%1$s\ndue to the error: %2$s"), file, error);
2045 Alert::error(_("Could not open file"), text);
2049 ifs.unsetf(std::ios::skipws);
2050 istream_iterator<char> ii(ifs);
2051 istream_iterator<char> end;
2052 #if !defined(USE_INCLUDED_STRING) && !defined(STD_STRING_IS_GOOD)
2053 // We use this until the compilers get better...
2054 std::vector<char> tmp;
2055 copy(ii, end, back_inserter(tmp));
2056 string const tmpstr(tmp.begin(), tmp.end());
2058 // This is what we want to use and what we will use once the
2059 // compilers get good enough.
2060 //string tmpstr(ii, end); // yet a reason for using std::string
2061 // alternate approach to get the file into a string:
2063 copy(ii, end, back_inserter(tmpstr));
2066 // FIXME UNICODE: We don't know the encoding of the file
2067 docstring file_content = from_utf8(tmpstr);
2068 if (file_content.empty()) {
2069 Alert::error(_("Reading not UTF-8 encoded file"),
2070 _("The file is not UTF-8 encoded.\n"
2071 "It will be read as local 8Bit-encoded.\n"
2072 "If this does not give the correct result\n"
2073 "then please change the encoding of the file\n"
2074 "to UTF-8 with a program other than LyX.\n"));
2075 file_content = from_local8bit(tmpstr);
2078 return normalize_c(file_content);
2082 void BufferView::insertPlaintextFile(string const & f, bool asParagraph)
2084 docstring const tmpstr = contentsOfPlaintextFile(f, asParagraph);
2089 Cursor & cur = cursor();
2090 cap::replaceSelection(cur);
2091 buffer_.undo().recordUndo(cur);
2093 cur.innerText()->insertStringAsParagraphs(cur, tmpstr);
2095 cur.innerText()->insertStringAsLines(cur, tmpstr);