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"
26 #include "DispatchResult.h"
27 #include "EmbeddedFiles.h"
28 #include "ErrorList.h"
30 #include "FloatList.h"
31 #include "FuncRequest.h"
32 #include "FuncStatus.h"
34 #include "InsetIterator.h"
36 #include "LaTeXFeatures.h"
42 #include "MetricsInfo.h"
43 #include "Paragraph.h"
44 #include "paragraph_funcs.h"
45 #include "ParagraphParameters.h"
46 #include "ParIterator.h"
49 #include "TextClass.h"
50 #include "TextMetrics.h"
53 #include "WordLangTuple.h"
55 #include "insets/InsetBibtex.h"
56 #include "insets/InsetCommand.h" // ChangeRefs
57 #include "insets/InsetRef.h"
58 #include "insets/InsetText.h"
60 #include "frontends/alert.h"
61 #include "frontends/Application.h"
62 #include "frontends/Delegates.h"
63 #include "frontends/FontMetrics.h"
64 #include "frontends/Painter.h"
65 #include "frontends/Selection.h"
67 #include "graphics/Previews.h"
69 #include "support/convert.h"
70 #include "support/debug.h"
71 #include "support/ExceptionMessage.h"
72 #include "support/FileFilterList.h"
73 #include "support/filetools.h"
74 #include "support/gettext.h"
75 #include "support/lstrings.h"
76 #include "support/Package.h"
77 #include "support/types.h"
86 using namespace lyx::support;
90 namespace Alert = frontend::Alert;
94 /// Return an inset of this class if it exists at the current cursor position
96 T * getInsetByCode(Cursor const & cur, InsetCode code)
99 Inset * inset = it.nextInset();
100 if (inset && inset->lyxCode() == code)
101 return static_cast<T*>(inset);
106 bool findInset(DocIterator & dit, vector<InsetCode> const & codes,
109 bool findNextInset(DocIterator & dit, vector<InsetCode> const & codes,
110 docstring const & contents)
112 DocIterator tmpdit = dit;
115 Inset const * inset = tmpdit.nextInset();
117 && find(codes.begin(), codes.end(), inset->lyxCode()) != codes.end()
118 && (contents.empty() ||
119 static_cast<InsetCommand const *>(inset)->getFirstNonOptParam() == contents)) {
123 tmpdit.forwardInset();
130 /// Looks for next inset with one of the given codes.
131 bool findInset(DocIterator & dit, vector<InsetCode> const & codes,
135 DocIterator tmpdit = dit;
136 tmpdit.forwardInset();
141 Inset const * inset = tmpdit.nextInset();
143 && find(codes.begin(), codes.end(), inset->lyxCode()) != codes.end()) {
144 contents = static_cast<InsetCommand const *>(inset)->getFirstNonOptParam();
148 if (!findNextInset(tmpdit, codes, contents)) {
149 if (dit.depth() != 1 || dit.pit() != 0 || dit.pos() != 0) {
150 tmpdit = doc_iterator_begin(tmpdit.bottom().inset());
151 if (!findNextInset(tmpdit, codes, contents))
162 /// Looks for next inset with the given code
163 void findInset(DocIterator & dit, InsetCode code, bool same_content)
165 findInset(dit, vector<InsetCode>(1, code), same_content);
169 /// Moves cursor to the next inset with one of the given codes.
170 void gotoInset(BufferView * bv, vector<InsetCode> const & codes,
173 Cursor tmpcur = bv->cursor();
174 if (!findInset(tmpcur, codes, same_content)) {
175 bv->cursor().message(_("No more insets"));
179 tmpcur.clearSelection();
180 bv->setCursor(tmpcur);
185 /// Moves cursor to the next inset with given code.
186 void gotoInset(BufferView * bv, InsetCode code, bool same_content)
188 gotoInset(bv, vector<InsetCode>(1, code), same_content);
192 /// A map from a Text to the associated text metrics
193 typedef map<Text const *, TextMetrics> TextMetricsCache;
195 enum ScreenUpdateStrategy {
205 /////////////////////////////////////////////////////////////////////
209 /////////////////////////////////////////////////////////////////////
211 struct BufferView::Private
213 Private(BufferView & bv): wh_(0), cursor_(bv),
214 anchor_pit_(0), anchor_ypos_(0),
215 last_inset_(0), gui_(0)
219 ScrollbarParameters scrollbarParameters_;
221 ScreenUpdateStrategy update_strategy_;
223 CoordCache coord_cache_;
225 /// Estimated average par height for scrollbar.
227 /// this is used to handle XSelection events in the right manner.
236 pit_type anchor_pit_;
240 vector<int> par_height_;
242 /// keyboard mapping object.
245 /// last visited inset.
246 /** kept to send setMouseHover(false).
247 * Not owned, so don't delete.
251 mutable TextMetricsCache text_metrics_;
254 /** Not owned, so don't delete.
256 frontend::GuiBufferViewDelegate * gui_;
260 BufferView::BufferView(Buffer & buf)
261 : width_(0), height_(0), buffer_(buf), d(new Private(*this))
263 d->xsel_cache_.set = false;
264 d->intl_.initKeyMapper(lyxrc.use_kbmap);
266 d->cursor_.push(buffer_.inset());
267 d->cursor_.resetAnchor();
268 d->cursor_.setCurrentFont();
270 if (graphics::Previews::status() != LyXRC::PREVIEW_OFF)
271 graphics::Previews::get().generateBufferPreviews(buffer_);
275 BufferView::~BufferView()
277 // current buffer is going to be switched-off, save cursor pos
278 // Ideally, the whole cursor stack should be saved, but session
279 // currently can only handle bottom (whole document) level pit and pos.
280 // That is to say, if a cursor is in a nested inset, it will be
281 // restore to the left of the top level inset.
282 LastFilePosSection::FilePos fp;
283 fp.pit = d->cursor_.bottom().pit();
284 fp.pos = d->cursor_.bottom().pos();
285 LyX::ref().session().lastFilePos().save(buffer_.fileName(), fp);
291 Intl & BufferView::getIntl()
297 Intl const & BufferView::getIntl() const
303 CoordCache & BufferView::coordCache()
305 return d->coord_cache_;
309 CoordCache const & BufferView::coordCache() const
311 return d->coord_cache_;
315 Buffer & BufferView::buffer()
321 Buffer const & BufferView::buffer() const
327 bool BufferView::fitCursor()
329 if (cursorStatus(d->cursor_) == CUR_INSIDE) {
330 frontend::FontMetrics const & fm =
331 theFontMetrics(d->cursor_.getFont().fontInfo());
332 int const asc = fm.maxAscent();
333 int const des = fm.maxDescent();
334 Point const p = getPos(d->cursor_, d->cursor_.boundary());
335 if (p.y_ - asc >= 0 && p.y_ + des < height_)
342 void BufferView::processUpdateFlags(Update::flags flags)
344 // last_inset_ points to the last visited inset. This pointer may become
345 // invalid because of keyboard editing. Since all such operations
346 // causes screen update(), I reset last_inset_ to avoid such a problem.
348 // This is close to a hot-path.
349 LYXERR(Debug::DEBUG, "BufferView::processUpdateFlags()"
350 << "[fitcursor = " << (flags & Update::FitCursor)
351 << ", forceupdate = " << (flags & Update::Force)
352 << ", singlepar = " << (flags & Update::SinglePar)
353 << "] buffer: " << &buffer_);
355 buffer_.updateMacros();
357 // Now do the first drawing step if needed. This consists on updating
358 // the CoordCache in updateMetrics().
359 // The second drawing step is done in WorkArea::redraw() if needed.
361 // Case when no explicit update is requested.
363 // no need to redraw anything.
364 d->update_strategy_ = NoScreenUpdate;
368 if (flags == Update::Decoration) {
369 d->update_strategy_ = DecorationUpdate;
374 if (flags == Update::FitCursor
375 || flags == (Update::Decoration | Update::FitCursor)) {
376 // tell the frontend to update the screen if needed.
381 if (flags & Update::Decoration) {
382 d->update_strategy_ = DecorationUpdate;
386 // no screen update is needed.
387 d->update_strategy_ = NoScreenUpdate;
391 bool const full_metrics = flags & Update::Force || !singleParUpdate();
394 // We have to update the full screen metrics.
397 if (!(flags & Update::FitCursor)) {
398 // Nothing to do anymore. Trigger a redraw and return
403 // updateMetrics() does not update paragraph position
404 // This is done at draw() time. So we need a redraw!
408 // The cursor is off screen so ensure it is visible.
415 void BufferView::updateScrollbar()
420 Text & t = buffer_.text();
421 TextMetrics & tm = d->text_metrics_[&t];
423 LYXERR(Debug::GUI, " Updating scrollbar: height: "
424 << t.paragraphs().size()
425 << " curr par: " << d->cursor_.bottom().pit()
426 << " default height " << defaultRowHeight());
428 int const parsize = int(t.paragraphs().size());
429 if (d->par_height_.size() != parsize) {
430 d->par_height_.clear();
431 // FIXME: We assume a default paragraph height of 2 rows. This
432 // should probably be pondered with the screen width.
433 d->par_height_.resize(parsize, defaultRowHeight() * 2);
436 // It would be better to fix the scrollbar to understand
437 // values in [0..1] and divide everything by wh
439 // Look at paragraph heights on-screen
440 pair<pit_type, ParagraphMetrics const *> first = tm.first();
441 pair<pit_type, ParagraphMetrics const *> last = tm.last();
442 for (pit_type pit = first.first; pit <= last.first; ++pit) {
443 d->par_height_[pit] = tm.parMetrics(pit).height();
444 LYXERR(Debug::SCROLLING, "storing height for pit " << pit << " : "
445 << d->par_height_[pit]);
449 // Build temporary cursor.
451 cur.push(buffer_.inset());
452 /*Inset * inset =*/ tm.editXY(cur, width_ / 4, 10);
453 pit_type const first_visible_pit = cur.bottom().pit();
454 d->scrollbarParameters_.position = coordOffset(cur, cur.boundary()).y_;
455 // FIXME: The screen position (width_/4, 10) works reasonably well
456 // for most texts but in some cases the first visible cursor position is
457 // hard to find when the screen begins with a Label for example. So in the
458 // case where coordOffset() returns (0,0), we should try with another
459 // position and/or look at the returned Inset geometry.
460 LYXERR(Debug::SCROLLING, "first visible pit : " << first_visible_pit);
461 LYXERR(Debug::SCROLLING, "offset from top : "
462 << d->scrollbarParameters_.position);
464 d->scrollbarParameters_.height = 0;
465 for (size_t i = 0; i != d->par_height_.size(); ++i) {
466 if (i == first_visible_pit)
467 d->scrollbarParameters_.position += d->scrollbarParameters_.height;
468 d->scrollbarParameters_.height += d->par_height_[i];
471 // We prefer fixed size line scrolling.
472 d->scrollbarParameters_.lineScrollHeight = defaultRowHeight();
476 ScrollbarParameters const & BufferView::scrollbarParameters() const
478 return d->scrollbarParameters_;
482 docstring BufferView::toolTip(int x, int y) const
484 // Get inset under mouse, if there is one.
485 Inset const * covering_inset = getCoveringInset(buffer_.text(), x, y);
487 // No inset, no tooltip...
489 return covering_inset->toolTip(*this, x, y);
493 docstring BufferView::contextMenu(int x, int y) const
495 // Get inset under mouse, if there is one.
496 Inset const * covering_inset = getCoveringInset(buffer_.text(), x, y);
498 return covering_inset->contextMenu(*this, x, y);
500 // FIXME: Do something more elaborate here.
501 return from_ascii("edit");
505 void BufferView::scrollDocView(int value)
507 int const offset = value - d->scrollbarParameters_.position;
508 // If the offset is less than 2 screen height, prefer to scroll instead.
509 if (abs(offset) <= 2 * height_) {
515 for (size_t i = 0; i != d->par_height_.size(); ++i) {
516 par_pos += d->par_height_[i];
517 if (par_pos >= value) {
518 d->anchor_pit_ = pit_type(i);
523 LYXERR(Debug::SCROLLING, "value = " << value
524 << "\tanchor_ref_ = " << d->anchor_pit_
525 << "\tpar_pos = " << par_pos);
527 d->anchor_ypos_ = par_pos - value;
533 // FIXME: this method is not working well.
534 void BufferView::setCursorFromScrollbar()
536 TextMetrics & tm = d->text_metrics_[&buffer_.text()];
538 int const height = 2 * defaultRowHeight();
539 int const first = height;
540 int const last = height_ - height;
541 Cursor & cur = d->cursor_;
543 switch (cursorStatus(cur)) {
545 // We reset the cursor because cursorStatus() does not
546 // work when the cursor is within mathed.
547 cur.reset(buffer_.inset());
548 tm.setCursorFromCoordinates(cur, 0, first);
549 cur.clearSelection();
552 // We reset the cursor because cursorStatus() does not
553 // work when the cursor is within mathed.
554 cur.reset(buffer_.inset());
555 tm.setCursorFromCoordinates(cur, 0, last);
556 cur.clearSelection();
559 int const y = getPos(cur, cur.boundary()).y_;
560 int const newy = min(last, max(y, first));
562 cur.reset(buffer_.inset());
563 tm.setCursorFromCoordinates(cur, 0, newy);
569 Change const BufferView::getCurrentChange() const
571 if (!d->cursor_.selection())
572 return Change(Change::UNCHANGED);
574 DocIterator dit = d->cursor_.selectionBegin();
575 return dit.paragraph().lookupChange(dit.pos());
579 // this could be used elsewhere as well?
580 // FIXME: This does not work within mathed!
581 CursorStatus BufferView::cursorStatus(DocIterator const & dit) const
583 Point const p = getPos(dit, dit.boundary());
586 if (p.y_ > workHeight())
592 void BufferView::saveBookmark(unsigned int idx)
594 // tenatively save bookmark, id and pos will be used to
595 // acturately locate a bookmark in a 'live' lyx session.
596 // pit and pos will be updated with bottom level pit/pos
598 LyX::ref().session().bookmarks().save(
600 d->cursor_.bottom().pit(),
601 d->cursor_.bottom().pos(),
602 d->cursor_.paragraph().id(),
607 // emit message signal.
608 message(_("Save bookmark"));
612 bool BufferView::moveToPosition(pit_type bottom_pit, pos_type bottom_pos,
613 int top_id, pos_type top_pos)
615 bool success = false;
618 d->cursor_.clearSelection();
620 // if a valid par_id is given, try it first
621 // This is the case for a 'live' bookmark when unique paragraph ID
622 // is used to track bookmarks.
624 ParIterator par = buffer_.getParFromID(top_id);
625 if (par != buffer_.par_iterator_end()) {
626 doc_it = makeDocIterator(par, min(par->size(), top_pos));
627 // Some slices of the iterator may not be
628 // reachable (e.g. closed collapsable inset)
629 // so the dociterator may need to be
630 // shortened. Otherwise, setCursor may crash
631 // lyx when the cursor can not be set to these
633 size_t const n = doc_it.depth();
634 for (size_t i = 0; i < n; ++i)
635 if (doc_it[i].inset().editable() != Inset::HIGHLY_EDITABLE) {
643 // if top_id == 0, or searching through top_id failed
644 // This is the case for a 'restored' bookmark when only bottom
645 // (document level) pit was saved. Because of this, bookmark
646 // restoration is inaccurate. If a bookmark was within an inset,
647 // it will be restored to the left of the outmost inset that contains
649 if (static_cast<size_t>(bottom_pit) < buffer_.paragraphs().size()) {
650 doc_it = doc_iterator_begin(buffer_.inset());
651 doc_it.pit() = bottom_pit;
652 doc_it.pos() = min(bottom_pos, doc_it.paragraph().size());
657 // Note: only bottom (document) level pit is set.
659 // set the current font.
660 d->cursor_.setCurrentFont();
661 // To center the screen on this new position we need the
662 // paragraph position which is computed at draw() time.
663 // So we need a redraw!
673 void BufferView::translateAndInsert(char_type c, Text * t, Cursor & cur)
675 if (lyxrc.rtl_support) {
676 if (d->cursor_.real_current_font.isRightToLeft()) {
677 if (d->intl_.keymap == Intl::PRIMARY)
678 d->intl_.keyMapSec();
680 if (d->intl_.keymap == Intl::SECONDARY)
681 d->intl_.keyMapPrim();
685 d->intl_.getTransManager().translateAndInsert(c, t, cur);
689 int BufferView::workWidth() const
695 void BufferView::showCursor()
697 // We are not properly started yet, delay until resizing is
702 LYXERR(Debug::SCROLLING, "recentering!");
704 CursorSlice & bot = d->cursor_.bottom();
705 TextMetrics & tm = d->text_metrics_[bot.text()];
707 pos_type const max_pit = pos_type(bot.text()->paragraphs().size() - 1);
708 int bot_pit = d->cursor_.bottom().pit();
709 if (bot_pit > max_pit) {
710 // FIXME: Why does this happen?
711 LYXERR0("bottom pit is greater that max pit: "
712 << bot_pit << " > " << max_pit);
716 if (bot_pit == tm.first().first - 1)
717 tm.newParMetricsUp();
718 else if (bot_pit == tm.last().first + 1)
719 tm.newParMetricsDown();
721 if (tm.has(bot_pit)) {
722 ParagraphMetrics const & pm = tm.parMetrics(bot_pit);
723 int offset = coordOffset(d->cursor_, d->cursor_.boundary()).y_;
724 int ypos = pm.position() + offset;
725 Dimension const & row_dim = d->cursor_.textRow().dimension();
726 if (ypos - row_dim.ascent() < 0)
727 scrollUp(- ypos + row_dim.ascent());
728 else if (ypos + row_dim.descent() > height_)
729 scrollDown(ypos - height_ + row_dim.descent());
730 // else, nothing to do, the cursor is already visible so we just return.
734 tm.redoParagraph(bot_pit);
735 ParagraphMetrics const & pm = tm.parMetrics(bot_pit);
736 int offset = coordOffset(d->cursor_, d->cursor_.boundary()).y_;
738 d->anchor_pit_ = bot_pit;
739 Dimension const & row_dim = d->cursor_.textRow().dimension();
741 if (d->anchor_pit_ == 0)
742 d->anchor_ypos_ = offset + pm.ascent();
743 else if (d->anchor_pit_ == max_pit)
744 d->anchor_ypos_ = height_ - offset - row_dim.descent();
746 d->anchor_ypos_ = defaultRowHeight() * 2 - offset - row_dim.descent();
753 FuncStatus BufferView::getStatus(FuncRequest const & cmd)
757 Cursor & cur = d->cursor_;
759 switch (cmd.action) {
762 flag.enabled(buffer_.undo().hasUndoStack());
765 flag.enabled(buffer_.undo().hasRedoStack());
767 case LFUN_FILE_INSERT:
768 case LFUN_FILE_INSERT_PLAINTEXT_PARA:
769 case LFUN_FILE_INSERT_PLAINTEXT:
770 case LFUN_BOOKMARK_SAVE:
771 // FIXME: Actually, these LFUNS should be moved to Text
772 flag.enabled(cur.inTexted());
774 case LFUN_FONT_STATE:
775 case LFUN_LABEL_INSERT:
776 case LFUN_INFO_INSERT:
777 case LFUN_PARAGRAPH_GOTO:
779 case LFUN_REFERENCE_NEXT:
781 case LFUN_WORD_REPLACE:
784 case LFUN_MARK_TOGGLE:
785 case LFUN_SCREEN_RECENTER:
786 case LFUN_BIBTEX_DATABASE_ADD:
787 case LFUN_BIBTEX_DATABASE_DEL:
788 case LFUN_STATISTICS:
789 case LFUN_NEXT_INSET_TOGGLE:
793 case LFUN_LABEL_GOTO: {
794 flag.enabled(!cmd.argument().empty()
795 || getInsetByCode<InsetRef>(cur, REF_CODE));
799 case LFUN_CHANGES_TRACK:
801 flag.setOnOff(buffer_.params().trackChanges);
804 case LFUN_CHANGES_OUTPUT:
806 flag.setOnOff(buffer_.params().outputChanges);
809 case LFUN_CHANGES_MERGE:
810 case LFUN_CHANGE_NEXT:
811 case LFUN_ALL_CHANGES_ACCEPT:
812 case LFUN_ALL_CHANGES_REJECT:
813 // TODO: context-sensitive enabling of LFUNs
814 // In principle, these command should only be enabled if there
815 // is a change in the document. However, without proper
816 // optimizations, this will inevitably result in poor performance.
820 case LFUN_BUFFER_TOGGLE_COMPRESSION: {
821 flag.setOnOff(buffer_.params().compressed);
825 case LFUN_BUFFER_TOGGLE_EMBEDDING: {
826 flag.setOnOff(buffer_.params().embedded);
831 case LFUN_SCREEN_DOWN:
836 // FIXME: LFUN_SCREEN_DOWN_SELECT should be removed from
837 // everywhere else before this can enabled:
838 case LFUN_SCREEN_UP_SELECT:
839 case LFUN_SCREEN_DOWN_SELECT:
843 case LFUN_LAYOUT_TABULAR:
844 flag.enabled(cur.innerInsetOfType(TABULAR_CODE));
848 case LFUN_LAYOUT_PARAGRAPH:
849 flag.enabled(cur.inset().forceDefaultParagraphs(cur.idx()));
852 case LFUN_INSET_SETTINGS: {
853 InsetCode code = cur.inset().lyxCode();
857 enable = cmd.argument() == "tabular";
860 enable = cmd.argument() == "ert";
863 enable = cmd.argument() == "float";
866 enable = cmd.argument() == "wrap";
869 enable = cmd.argument() == "note";
872 enable = cmd.argument() == "branch";
875 enable = cmd.argument() == "box";
878 enable = cmd.argument() == "listings";
883 flag.enabled(enable);
887 case LFUN_DIALOG_SHOW_NEW_INSET:
888 flag.enabled(cur.inset().lyxCode() != ERT_CODE &&
889 cur.inset().lyxCode() != LISTINGS_CODE);
890 if (cur.inset().lyxCode() == CAPTION_CODE) {
892 if (cur.inset().getStatus(cur, cmd, flag))
905 bool BufferView::dispatch(FuncRequest const & cmd)
907 //lyxerr << [ cmd = " << cmd << "]" << endl;
909 // Make sure that the cached BufferView is correct.
910 LYXERR(Debug::ACTION, " action[" << cmd.action << ']'
911 << " arg[" << to_utf8(cmd.argument()) << ']'
912 << " x[" << cmd.x << ']'
913 << " y[" << cmd.y << ']'
914 << " button[" << cmd.button() << ']');
916 Cursor & cur = d->cursor_;
918 switch (cmd.action) {
921 cur.message(_("Undo"));
922 cur.clearSelection();
924 cur.message(_("No further undo information"));
926 processUpdateFlags(Update::Force | Update::FitCursor);
930 cur.message(_("Redo"));
931 cur.clearSelection();
933 cur.message(_("No further redo information"));
935 processUpdateFlags(Update::Force | Update::FitCursor);
938 case LFUN_FONT_STATE:
939 cur.message(cur.currentState());
942 case LFUN_BOOKMARK_SAVE:
943 saveBookmark(convert<unsigned int>(to_utf8(cmd.argument())));
946 case LFUN_LABEL_GOTO: {
947 docstring label = cmd.argument();
950 getInsetByCode<InsetRef>(d->cursor_,
953 label = inset->getParam("reference");
954 // persistent=false: use temp_bookmark
964 case LFUN_PARAGRAPH_GOTO: {
965 int const id = convert<int>(to_utf8(cmd.argument()));
967 for (Buffer * b = &buffer_; i == 0 || b != &buffer_;
968 b = theBufferList().next(b)) {
970 ParIterator par = b->getParFromID(id);
971 if (par == b->par_iterator_end()) {
972 LYXERR(Debug::INFO, "No matching paragraph found! [" << id << "].");
974 LYXERR(Debug::INFO, "Paragraph " << par->id()
975 << " found in buffer `"
976 << b->absFileName() << "'.");
980 setCursor(makeDocIterator(par, 0));
983 // Switch to other buffer view and resend cmd
984 theLyXFunc().dispatch(FuncRequest(
985 LFUN_BUFFER_SWITCH, b->absFileName()));
986 theLyXFunc().dispatch(cmd);
996 gotoInset(this, NOTE_CODE, false);
999 case LFUN_REFERENCE_NEXT: {
1000 vector<InsetCode> tmp;
1001 tmp.push_back(LABEL_CODE);
1002 tmp.push_back(REF_CODE);
1003 gotoInset(this, tmp, true);
1007 case LFUN_CHANGES_TRACK:
1008 buffer_.params().trackChanges = !buffer_.params().trackChanges;
1011 case LFUN_CHANGES_OUTPUT:
1012 buffer_.params().outputChanges = !buffer_.params().outputChanges;
1013 if (buffer_.params().outputChanges) {
1014 bool dvipost = LaTeXFeatures::isAvailable("dvipost");
1015 bool xcolorsoul = LaTeXFeatures::isAvailable("soul") &&
1016 LaTeXFeatures::isAvailable("xcolor");
1018 if (!dvipost && !xcolorsoul) {
1019 Alert::warning(_("Changes not shown in LaTeX output"),
1020 _("Changes will not be highlighted in LaTeX output, "
1021 "because neither dvipost nor xcolor/soul are installed.\n"
1022 "Please install these packages or redefine "
1023 "\\lyxadded and \\lyxdeleted in the LaTeX preamble."));
1024 } else if (!xcolorsoul) {
1025 Alert::warning(_("Changes not shown in LaTeX output"),
1026 _("Changes will not be highlighted in LaTeX output "
1027 "when using pdflatex, because xcolor and soul are not installed.\n"
1028 "Please install both packages or redefine "
1029 "\\lyxadded and \\lyxdeleted in the LaTeX preamble."));
1034 case LFUN_CHANGE_NEXT:
1035 findNextChange(this);
1038 case LFUN_CHANGES_MERGE:
1039 if (findNextChange(this))
1040 showDialog("changes");
1043 case LFUN_ALL_CHANGES_ACCEPT:
1044 // select complete document
1045 d->cursor_.reset(buffer_.inset());
1046 d->cursor_.selHandle(true);
1047 buffer_.text().cursorBottom(d->cursor_);
1048 // accept everything in a single step to support atomic undo
1049 buffer_.text().acceptOrRejectChanges(d->cursor_, Text::ACCEPT);
1052 case LFUN_ALL_CHANGES_REJECT:
1053 // select complete document
1054 d->cursor_.reset(buffer_.inset());
1055 d->cursor_.selHandle(true);
1056 buffer_.text().cursorBottom(d->cursor_);
1057 // reject everything in a single step to support atomic undo
1058 // Note: reject does not work recursively; the user may have to repeat the operation
1059 buffer_.text().acceptOrRejectChanges(d->cursor_, Text::REJECT);
1062 case LFUN_WORD_FIND:
1066 case LFUN_WORD_REPLACE: {
1067 bool has_deleted = false;
1068 if (cur.selection()) {
1069 DocIterator beg = cur.selectionBegin();
1070 DocIterator end = cur.selectionEnd();
1071 if (beg.pit() == end.pit()) {
1072 for (pos_type p = beg.pos() ; p < end.pos() ; ++p) {
1073 if (cur.paragraph().isDeleted(p))
1078 replace(this, cmd, has_deleted);
1083 cur.clearSelection();
1085 cur.message(from_utf8(N_("Mark off")));
1089 cur.clearSelection();
1092 cur.message(from_utf8(N_("Mark on")));
1095 case LFUN_MARK_TOGGLE:
1096 cur.clearSelection();
1099 cur.message(from_utf8(N_("Mark removed")));
1102 cur.message(from_utf8(N_("Mark set")));
1107 case LFUN_SCREEN_RECENTER:
1111 case LFUN_BIBTEX_DATABASE_ADD: {
1112 Cursor tmpcur = d->cursor_;
1113 findInset(tmpcur, BIBTEX_CODE, false);
1114 InsetBibtex * inset = getInsetByCode<InsetBibtex>(tmpcur,
1117 if (inset->addDatabase(to_utf8(cmd.argument())))
1118 buffer_.updateBibfilesCache();
1123 case LFUN_BIBTEX_DATABASE_DEL: {
1124 Cursor tmpcur = d->cursor_;
1125 findInset(tmpcur, BIBTEX_CODE, false);
1126 InsetBibtex * inset = getInsetByCode<InsetBibtex>(tmpcur,
1129 if (inset->delDatabase(to_utf8(cmd.argument())))
1130 buffer_.updateBibfilesCache();
1135 case LFUN_STATISTICS: {
1136 DocIterator from, to;
1137 if (cur.selection()) {
1138 from = cur.selectionBegin();
1139 to = cur.selectionEnd();
1141 from = doc_iterator_begin(buffer_.inset());
1142 to = doc_iterator_end(buffer_.inset());
1144 int const words = countWords(from, to);
1145 int const chars = countChars(from, to, false);
1146 int const chars_blanks = countChars(from, to, true);
1148 if (cur.selection())
1149 message = _("Statistics for the selection:\n");
1151 message = _("Statistics for the document:\n");
1153 message += bformat(_("\n%1$d words"), words);
1155 message += _("\nOne word");
1156 if (chars_blanks != 1)
1157 message += bformat(_("\n%1$d characters (including blanks)"),
1160 message += _("\nOne character (including blanks)");
1162 message += bformat(_("\n%1$d characters (excluding blanks)"),
1165 message += _("\nOne character (excluding blanks)");
1167 Alert::information(_("Statistics"), message);
1171 case LFUN_BUFFER_TOGGLE_COMPRESSION:
1172 // turn compression on/off
1173 buffer_.params().compressed = !buffer_.params().compressed;
1176 case LFUN_BUFFER_TOGGLE_EMBEDDING: {
1177 // turn embedding on/off
1179 buffer_.embeddedFiles().enable(!buffer_.params().embedded, buffer_);
1180 } catch (ExceptionMessage const & message) {
1181 Alert::error(message.title_, message.details_);
1186 case LFUN_NEXT_INSET_TOGGLE: {
1187 // this is the real function we want to invoke
1188 FuncRequest tmpcmd = FuncRequest(LFUN_INSET_TOGGLE, cmd.origin);
1189 // if there is an inset at cursor, see whether it
1191 Inset * inset = cur.nextInset();
1193 if (inset->isActive()) {
1194 Cursor tmpcur = cur;
1195 tmpcur.pushBackward(*inset);
1196 inset->dispatch(tmpcur, tmpcmd);
1197 if (tmpcur.result().dispatched()) {
1200 } else if (inset->editable() == Inset::IS_EDITABLE) {
1201 inset->edit(cur, true);
1204 // if it did not work, try the underlying inset.
1205 if (!cur.result().dispatched())
1206 cur.dispatch(tmpcmd);
1208 if (!cur.result().dispatched())
1209 // It did not work too; no action needed.
1211 cur.clearSelection();
1212 processUpdateFlags(Update::SinglePar | Update::FitCursor);
1216 case LFUN_SCREEN_UP:
1217 case LFUN_SCREEN_DOWN: {
1218 Point p = getPos(cur, cur.boundary());
1219 if (p.y_ < 0 || p.y_ > height_) {
1220 // The cursor is off-screen so recenter before proceeding.
1222 p = getPos(cur, cur.boundary());
1224 scroll(cmd.action == LFUN_SCREEN_UP? - height_ : height_);
1225 cur.reset(buffer_.inset());
1226 d->text_metrics_[&buffer_.text()].editXY(cur, p.x_, p.y_);
1227 //FIXME: what to do with cur.x_target()?
1236 case LFUN_SCREEN_UP_SELECT:
1237 case LFUN_SCREEN_DOWN_SELECT: {
1238 // Those two are not ready yet for consumption.
1241 cur.selHandle(true);
1242 size_t initial_depth = cur.depth();
1243 Point const p = getPos(cur, cur.boundary());
1244 scroll(cmd.action == LFUN_SCREEN_UP_SELECT? - height_ : height_);
1245 // FIXME: We need to verify if the cursor stayed within an inset...
1246 //cur.reset(buffer_.inset());
1247 d->text_metrics_[&buffer_.text()].editXY(cur, p.x_, p.y_);
1249 while (cur.depth() > initial_depth) {
1252 // FIXME: we need to do a redraw again because of the selection
1253 // But no screen update is needed.
1254 d->update_strategy_ = NoScreenUpdate;
1267 docstring const BufferView::requestSelection()
1269 Cursor & cur = d->cursor_;
1271 if (!cur.selection()) {
1272 d->xsel_cache_.set = false;
1276 if (!d->xsel_cache_.set ||
1277 cur.top() != d->xsel_cache_.cursor ||
1278 cur.anchor_.top() != d->xsel_cache_.anchor)
1280 d->xsel_cache_.cursor = cur.top();
1281 d->xsel_cache_.anchor = cur.anchor_.top();
1282 d->xsel_cache_.set = cur.selection();
1283 return cur.selectionAsString(false);
1289 void BufferView::clearSelection()
1291 d->cursor_.clearSelection();
1292 // Clear the selection buffer. Otherwise a subsequent
1293 // middle-mouse-button paste would use the selection buffer,
1294 // not the more current external selection.
1295 cap::clearSelection();
1296 d->xsel_cache_.set = false;
1297 // The buffer did not really change, but this causes the
1298 // redraw we need because we cleared the selection above.
1303 void BufferView::resize(int width, int height)
1305 // Update from work area
1309 // Clear the paragraph height cache.
1310 d->par_height_.clear();
1316 Inset const * BufferView::getCoveringInset(Text const & text,
1319 TextMetrics & tm = d->text_metrics_[&text];
1320 Inset * inset = tm.checkInsetHit(x, y);
1324 if (!inset->descendable())
1325 // No need to go further down if the inset is not
1329 size_t cell_number = inset->nargs();
1330 // Check all the inner cell.
1331 for (size_t i = 0; i != cell_number; ++i) {
1332 Text const * inner_text = inset->getText(i);
1335 Inset const * inset_deeper =
1336 getCoveringInset(*inner_text, x, y);
1338 return inset_deeper;
1346 void BufferView::mouseEventDispatch(FuncRequest const & cmd0)
1348 //lyxerr << "[ cmd0 " << cmd0 << "]" << endl;
1350 // This is only called for mouse related events including
1351 // LFUN_FILE_OPEN generated by drag-and-drop.
1352 FuncRequest cmd = cmd0;
1355 cur.push(buffer_.inset());
1356 cur.selection() = d->cursor_.selection();
1358 // Either the inset under the cursor or the
1359 // surrounding Text will handle this event.
1361 // make sure we stay within the screen...
1362 cmd.y = min(max(cmd.y, -1), height_);
1364 if (cmd.action == LFUN_MOUSE_MOTION && cmd.button() == mouse_button::none) {
1366 // Get inset under mouse, if there is one.
1367 Inset const * covering_inset =
1368 getCoveringInset(buffer_.text(), cmd.x, cmd.y);
1369 if (covering_inset == d->last_inset_)
1370 // Same inset, no need to do anything...
1373 bool need_redraw = false;
1374 // const_cast because of setMouseHover().
1375 Inset * inset = const_cast<Inset *>(covering_inset);
1377 // Remove the hint on the last hovered inset (if any).
1378 need_redraw |= d->last_inset_->setMouseHover(false);
1380 // Highlighted the newly hovered inset (if any).
1381 need_redraw |= inset->setMouseHover(true);
1382 d->last_inset_ = inset;
1386 LYXERR(Debug::PAINTING, "Mouse hover detected at: ("
1387 << cmd.x << ", " << cmd.y << ")");
1389 d->update_strategy_ = DecorationUpdate;
1391 // This event (moving without mouse click) is not passed further.
1392 // This should be changed if it is further utilized.
1397 // Build temporary cursor.
1398 Inset * inset = d->text_metrics_[&buffer_.text()].editXY(cur, cmd.x, cmd.y);
1400 // Put anchor at the same position.
1403 // Try to dispatch to an non-editable inset near this position
1404 // via the temp cursor. If the inset wishes to change the real
1405 // cursor it has to do so explicitly by using
1406 // cur.bv().cursor() = cur; (or similar)
1408 inset->dispatch(cur, cmd);
1410 // Now dispatch to the temporary cursor. If the real cursor should
1411 // be modified, the inset's dispatch has to do so explicitly.
1412 if (!cur.result().dispatched())
1415 //Do we have a selection?
1416 theSelection().haveSelection(cursor().selection());
1418 // If the command has been dispatched,
1419 if (cur.result().dispatched()
1420 // an update is asked,
1421 && cur.result().update())
1422 processUpdateFlags(cur.result().update());
1426 void BufferView::lfunScroll(FuncRequest const & cmd)
1428 string const scroll_type = cmd.getArg(0);
1429 int const scroll_step =
1430 (scroll_type == "line")? d->scrollbarParameters_.lineScrollHeight
1431 : (scroll_type == "page")? height_ : 0;
1432 if (scroll_step == 0)
1434 string const scroll_quantity = cmd.getArg(1);
1435 if (scroll_quantity == "up")
1436 scrollUp(scroll_step);
1437 else if (scroll_quantity == "down")
1438 scrollDown(scroll_step);
1440 int const scroll_value = convert<int>(scroll_quantity);
1442 scroll(scroll_step * scroll_value);
1447 void BufferView::scroll(int y)
1456 void BufferView::scrollDown(int offset)
1458 Text * text = &buffer_.text();
1459 TextMetrics & tm = d->text_metrics_[text];
1460 int ymax = height_ + offset;
1462 pair<pit_type, ParagraphMetrics const *> last = tm.last();
1463 int bottom_pos = last.second->position() + last.second->descent();
1464 if (last.first + 1 == int(text->paragraphs().size())) {
1465 if (bottom_pos <= height_)
1467 offset = min(offset, bottom_pos - height_);
1470 if (bottom_pos > ymax)
1472 tm.newParMetricsDown();
1474 d->anchor_ypos_ -= offset;
1480 void BufferView::scrollUp(int offset)
1482 Text * text = &buffer_.text();
1483 TextMetrics & tm = d->text_metrics_[text];
1484 int ymin = - offset;
1486 pair<pit_type, ParagraphMetrics const *> first = tm.first();
1487 int top_pos = first.second->position() - first.second->ascent();
1488 if (first.first == 0) {
1491 offset = min(offset, - top_pos);
1496 tm.newParMetricsUp();
1498 d->anchor_ypos_ += offset;
1504 void BufferView::setCursorFromRow(int row)
1509 buffer_.texrow().getIdFromRow(row, tmpid, tmppos);
1511 d->cursor_.reset(buffer_.inset());
1513 buffer_.text().setCursor(d->cursor_, 0, 0);
1515 buffer_.text().setCursor(d->cursor_, buffer_.getParFromID(tmpid).pit(), tmppos);
1519 void BufferView::gotoLabel(docstring const & label)
1521 for (InsetIterator it = inset_iterator_begin(buffer_.inset()); it; ++it) {
1522 vector<docstring> labels;
1523 it->getLabelList(buffer_, labels);
1524 if (find(labels.begin(), labels.end(), label) != labels.end()) {
1533 TextMetrics const & BufferView::textMetrics(Text const * t) const
1535 return const_cast<BufferView *>(this)->textMetrics(t);
1539 TextMetrics & BufferView::textMetrics(Text const * t)
1541 TextMetricsCache::iterator tmc_it = d->text_metrics_.find(t);
1542 if (tmc_it == d->text_metrics_.end()) {
1543 tmc_it = d->text_metrics_.insert(
1544 make_pair(t, TextMetrics(this, const_cast<Text *>(t)))).first;
1546 return tmc_it->second;
1550 ParagraphMetrics const & BufferView::parMetrics(Text const * t,
1553 return textMetrics(t).parMetrics(pit);
1557 int BufferView::workHeight() const
1563 void BufferView::setCursor(DocIterator const & dit)
1565 size_t const n = dit.depth();
1566 for (size_t i = 0; i < n; ++i)
1567 dit[i].inset().edit(d->cursor_, true);
1569 d->cursor_.setCursor(dit);
1570 d->cursor_.selection() = false;
1574 bool BufferView::checkDepm(Cursor & cur, Cursor & old)
1576 // Would be wrong to delete anything if we have a selection.
1577 if (cur.selection())
1580 bool need_anchor_change = false;
1581 bool changed = d->cursor_.text()->deleteEmptyParagraphMechanism(cur, old,
1582 need_anchor_change);
1584 if (need_anchor_change)
1592 updateLabels(buffer_);
1600 bool BufferView::mouseSetCursor(Cursor & cur, bool select)
1602 BOOST_ASSERT(&cur.bv() == this);
1605 // this event will clear selection so we save selection for
1606 // persistent selection
1607 cap::saveSelection(cursor());
1609 // Has the cursor just left the inset?
1610 bool badcursor = false;
1611 bool leftinset = (&d->cursor_.inset() != &cur.inset());
1613 badcursor = notifyCursorLeaves(d->cursor_, cur);
1615 // FIXME: shift-mouse selection doesn't work well across insets.
1616 bool do_selection = select && &d->cursor_.anchor().inset() == &cur.inset();
1618 // do the dEPM magic if needed
1619 // FIXME: (1) move this to InsetText::notifyCursorLeaves?
1620 // FIXME: (2) if we had a working InsetText::notifyCursorLeaves,
1621 // the leftinset bool would not be necessary (badcursor instead).
1622 bool update = leftinset;
1623 if (!do_selection && !badcursor && d->cursor_.inTexted())
1624 update |= checkDepm(cur, d->cursor_);
1626 // if the cursor was in an empty script inset and the new
1627 // position is in the nucleus of the inset, notifyCursorLeaves
1628 // will kill the script inset itself. So we check all the
1629 // elements of the cursor to make sure that they are correct.
1630 // For an example, see bug 2933:
1631 // http://bugzilla.lyx.org/show_bug.cgi?id=2933
1632 // The code below could maybe be moved to a DocIterator method.
1633 //lyxerr << "cur before " << cur <<endl;
1634 DocIterator dit(cur.inset());
1635 dit.push_back(cur.bottom());
1637 while (i < cur.depth() && dit.nextInset() == &cur[i].inset()) {
1638 dit.push_back(cur[i]);
1641 //lyxerr << "5 cur after" << dit <<endl;
1643 d->cursor_.setCursor(dit);
1644 d->cursor_.boundary(cur.boundary());
1646 d->cursor_.setSelection();
1648 d->cursor_.clearSelection();
1650 d->cursor_.finishUndo();
1651 d->cursor_.setCurrentFont();
1656 void BufferView::putSelectionAt(DocIterator const & cur,
1657 int length, bool backwards)
1659 d->cursor_.clearSelection();
1665 d->cursor_.pos() += length;
1666 d->cursor_.setSelection(d->cursor_, -length);
1668 d->cursor_.setSelection(d->cursor_, length);
1673 Cursor & BufferView::cursor()
1679 Cursor const & BufferView::cursor() const
1685 pit_type BufferView::anchor_ref() const
1687 return d->anchor_pit_;
1691 bool BufferView::singleParUpdate()
1693 Text & buftext = buffer_.text();
1694 pit_type const bottom_pit = d->cursor_.bottom().pit();
1695 TextMetrics & tm = textMetrics(&buftext);
1696 int old_height = tm.parMetrics(bottom_pit).height();
1698 // In Single Paragraph mode, rebreak only
1699 // the (main text, not inset!) paragraph containing the cursor.
1700 // (if this paragraph contains insets etc., rebreaking will
1701 // recursively descend)
1702 tm.redoParagraph(bottom_pit);
1703 ParagraphMetrics const & pm = tm.parMetrics(bottom_pit);
1704 if (pm.height() != old_height)
1705 // Paragraph height has changed so we cannot proceed to
1706 // the singlePar optimisation.
1709 d->update_strategy_ = SingleParUpdate;
1711 LYXERR(Debug::PAINTING, "\ny1: " << pm.position() - pm.ascent()
1712 << " y2: " << pm.position() + pm.descent()
1713 << " pit: " << bottom_pit
1714 << " singlepar: 1");
1719 void BufferView::updateMetrics()
1721 Text & buftext = buffer_.text();
1722 pit_type const npit = int(buftext.paragraphs().size());
1724 // Clear out the position cache in case of full screen redraw,
1725 d->coord_cache_.clear();
1727 // Clear out paragraph metrics to avoid having invalid metrics
1728 // in the cache from paragraphs not relayouted below
1729 // The complete text metrics will be redone.
1730 d->text_metrics_.clear();
1732 TextMetrics & tm = textMetrics(&buftext);
1734 // Rebreak anchor paragraph.
1735 tm.redoParagraph(d->anchor_pit_);
1736 ParagraphMetrics & anchor_pm = tm.par_metrics_[d->anchor_pit_];
1737 anchor_pm.setPosition(d->anchor_ypos_);
1739 LYXERR(Debug::PAINTING, "metrics: "
1740 << " anchor pit = " << d->anchor_pit_
1741 << " anchor ypos = " << d->anchor_ypos_);
1743 // Redo paragraphs above anchor if necessary.
1744 int y1 = d->anchor_ypos_ - anchor_pm.ascent();
1745 // We are now just above the anchor paragraph.
1746 pit_type pit1 = d->anchor_pit_ - 1;
1747 for (; pit1 >= 0 && y1 >= 0; --pit1) {
1748 tm.redoParagraph(pit1);
1749 ParagraphMetrics & pm = tm.par_metrics_[pit1];
1751 // Save the paragraph position in the cache.
1756 // Redo paragraphs below the anchor if necessary.
1757 int y2 = d->anchor_ypos_ + anchor_pm.descent();
1758 // We are now just below the anchor paragraph.
1759 pit_type pit2 = d->anchor_pit_ + 1;
1760 for (; pit2 < npit && y2 <= height_; ++pit2) {
1761 tm.redoParagraph(pit2);
1762 ParagraphMetrics & pm = tm.par_metrics_[pit2];
1764 // Save the paragraph position in the cache.
1769 LYXERR(Debug::PAINTING, "Metrics: "
1770 << " anchor pit = " << d->anchor_pit_
1771 << " anchor ypos = " << d->anchor_ypos_
1774 << " pit1 = " << pit1
1775 << " pit2 = " << pit2);
1777 d->update_strategy_ = FullScreenUpdate;
1779 if (lyxerr.debugging(Debug::WORKAREA)) {
1780 LYXERR(Debug::WORKAREA, "BufferView::updateMetrics");
1781 d->coord_cache_.dump();
1786 void BufferView::insertLyXFile(FileName const & fname)
1788 BOOST_ASSERT(d->cursor_.inTexted());
1790 // Get absolute path of file and add ".lyx"
1791 // to the filename if necessary
1792 FileName filename = fileSearch(string(), fname.absFilename(), "lyx");
1794 docstring const disp_fn = makeDisplayPath(filename.absFilename());
1795 // emit message signal.
1796 message(bformat(_("Inserting document %1$s..."), disp_fn));
1799 Buffer buf("", false);
1800 if (buf.loadLyXFile(filename)) {
1801 ErrorList & el = buffer_.errorList("Parse");
1802 // Copy the inserted document error list into the current buffer one.
1803 el = buf.errorList("Parse");
1804 buffer_.undo().recordUndo(d->cursor_);
1805 cap::pasteParagraphList(d->cursor_, buf.paragraphs(),
1806 buf.params().getTextClassPtr(), el);
1807 res = _("Document %1$s inserted.");
1809 res = _("Could not insert document %1$s");
1814 // emit message signal.
1815 message(bformat(res, disp_fn));
1816 buffer_.errors("Parse");
1820 Point BufferView::coordOffset(DocIterator const & dit, bool boundary) const
1826 // Addup contribution of nested insets, from inside to outside,
1827 // keeping the outer paragraph for a special handling below
1828 for (size_t i = dit.depth() - 1; i >= 1; --i) {
1829 CursorSlice const & sl = dit[i];
1833 // get relative position inside sl.inset()
1834 sl.inset().cursorPos(*this, sl, boundary && (i + 1 == dit.depth()), xx, yy);
1836 // Make relative position inside of the edited inset relative to sl.inset()
1840 // In case of an RTL inset, the edited inset will be positioned to the left
1843 bool boundary_i = boundary && i + 1 == dit.depth();
1844 bool rtl = textMetrics(sl.text()).isRTL(sl, boundary_i);
1849 // remember width for the case that sl.inset() is positioned in an RTL inset
1850 if (i && dit[i - 1].text()) {
1851 // If this Inset is inside a Text Inset, retrieve the Dimension
1852 // from the containing text instead of using Inset::dimension() which
1853 // might not be implemented.
1854 // FIXME (Abdel 23/09/2007): this is a bit messy because of the
1855 // elimination of Inset::dim_ cache. This coordOffset() method needs
1856 // to be rewritten in light of the new design.
1857 Dimension const & dim = parMetrics(dit[i - 1].text(),
1858 dit[i - 1].pit()).insetDimension(&sl.inset());
1861 Dimension const dim = sl.inset().dimension(*this);
1865 //lyxerr << "Cursor::getPos, i: "
1866 // << i << " x: " << xx << " y: " << y << endl;
1869 // Add contribution of initial rows of outermost paragraph
1870 CursorSlice const & sl = dit[0];
1871 TextMetrics const & tm = textMetrics(sl.text());
1872 ParagraphMetrics const & pm = tm.parMetrics(sl.pit());
1873 BOOST_ASSERT(!pm.rows().empty());
1874 y -= pm.rows()[0].ascent();
1876 // FIXME: document this mess
1878 if (sl.pos() > 0 && dit.depth() == 1) {
1880 if (pos && boundary)
1882 // lyxerr << "coordOffset: boundary:" << boundary << " depth:" << dit.depth() << " pos:" << pos << " sl.pos:" << sl.pos() << endl;
1883 rend = pm.pos2row(pos);
1885 rend = pm.pos2row(sl.pos());
1887 size_t rend = pm.pos2row(sl.pos());
1889 for (size_t rit = 0; rit != rend; ++rit)
1890 y += pm.rows()[rit].height();
1891 y += pm.rows()[rend].ascent();
1893 TextMetrics const & bottom_tm = textMetrics(dit.bottom().text());
1895 // Make relative position from the nested inset now bufferview absolute.
1896 int xx = bottom_tm.cursorX(dit.bottom(), boundary && dit.depth() == 1);
1899 // In the RTL case place the nested inset at the left of the cursor in
1900 // the outer paragraph
1901 bool boundary_1 = boundary && 1 == dit.depth();
1902 bool rtl = bottom_tm.isRTL(dit.bottom(), boundary_1);
1910 Point BufferView::getPos(DocIterator const & dit, bool boundary) const
1912 CursorSlice const & bot = dit.bottom();
1913 TextMetrics const & tm = textMetrics(bot.text());
1914 if (!tm.has(bot.pit()))
1915 return Point(-1, -1);
1917 Point p = coordOffset(dit, boundary); // offset from outer paragraph
1918 p.y_ += tm.parMetrics(bot.pit()).position();
1923 void BufferView::draw(frontend::Painter & pain)
1925 LYXERR(Debug::PAINTING, "\t\t*** START DRAWING ***");
1926 Text & text = buffer_.text();
1927 TextMetrics const & tm = d->text_metrics_[&text];
1928 int const y = tm.first().second->position();
1929 PainterInfo pi(this, pain);
1931 switch (d->update_strategy_) {
1933 case NoScreenUpdate:
1934 // If no screen painting is actually needed, only some the different
1935 // coordinates of insets and paragraphs needs to be updated.
1936 pi.full_repaint = true;
1937 pi.pain.setDrawingEnabled(false);
1941 case SingleParUpdate:
1942 pi.full_repaint = false;
1943 // In general, only the current row of the outermost paragraph
1944 // will be redrawn. Particular cases where selection spans
1945 // multiple paragraph are correctly detected in TextMetrics.
1949 case DecorationUpdate:
1950 // FIXME: We should also distinguish DecorationUpdate to avoid text
1951 // drawing if possible. This is not possible to do easily right now
1952 // because of the single backing pixmap.
1954 case FullScreenUpdate:
1955 // The whole screen, including insets, will be refreshed.
1956 pi.full_repaint = true;
1958 // Clear background.
1959 pain.fillRectangle(0, 0, width_, height_,
1960 buffer_.inset().backgroundColor());
1965 // and possibly grey out below
1966 pair<pit_type, ParagraphMetrics const *> lastpm = tm.last();
1967 int const y2 = lastpm.second->position() + lastpm.second->descent();
1969 pain.fillRectangle(0, y2, width_, height_ - y2, Color_bottomarea);
1972 LYXERR(Debug::PAINTING, "\n\t\t*** END DRAWING ***");
1974 // The scrollbar needs an update.
1977 // Normalize anchor for next time
1978 pair<pit_type, ParagraphMetrics const *> firstpm = tm.first();
1979 pair<pit_type, ParagraphMetrics const *> lastpm = tm.last();
1980 for (pit_type pit = firstpm.first; pit <= lastpm.first; ++pit) {
1981 ParagraphMetrics const & pm = tm.parMetrics(pit);
1982 if (pm.position() + pm.descent() > 0) {
1983 d->anchor_pit_ = pit;
1984 d->anchor_ypos_ = pm.position();
1988 LYXERR(Debug::PAINTING, "Found new anchor pit = " << d->anchor_pit_
1989 << " anchor ypos = " << d->anchor_ypos_);
1993 void BufferView::message(docstring const & msg)
1996 d->gui_->message(msg);
2000 void BufferView::showDialog(string const & name)
2003 d->gui_->showDialog(name, string());
2007 void BufferView::showDialog(string const & name,
2008 string const & data, Inset * inset)
2011 d->gui_->showDialog(name, data, inset);
2015 void BufferView::updateDialog(string const & name, string const & data)
2018 d->gui_->updateDialog(name, data);
2022 void BufferView::setGuiDelegate(frontend::GuiBufferViewDelegate * gui)
2028 // FIXME: Move this out of BufferView again
2029 docstring BufferView::contentsOfPlaintextFile(FileName const & fname)
2031 if (!fname.isReadableFile()) {
2032 docstring const error = from_ascii(strerror(errno));
2033 docstring const file = makeDisplayPath(fname.absFilename(), 50);
2034 docstring const text =
2035 bformat(_("Could not read the specified document\n"
2036 "%1$s\ndue to the error: %2$s"), file, error);
2037 Alert::error(_("Could not read file"), text);
2041 if (!fname.isReadableFile()) {
2042 docstring const file = makeDisplayPath(fname.absFilename(), 50);
2043 docstring const text =
2044 bformat(_("%1$s\n is not readable."), file);
2045 Alert::error(_("Could not open file"), text);
2049 // FIXME UNICODE: We don't know the encoding of the file
2050 docstring file_content = fname.fileContents("UTF-8");
2051 if (file_content.empty()) {
2052 Alert::error(_("Reading not UTF-8 encoded file"),
2053 _("The file is not UTF-8 encoded.\n"
2054 "It will be read as local 8Bit-encoded.\n"
2055 "If this does not give the correct result\n"
2056 "then please change the encoding of the file\n"
2057 "to UTF-8 with a program other than LyX.\n"));
2058 file_content = fname.fileContents("local8bit");
2061 return normalize_c(file_content);
2065 void BufferView::insertPlaintextFile(FileName const & f, bool asParagraph)
2067 docstring const tmpstr = contentsOfPlaintextFile(f);
2072 Cursor & cur = cursor();
2073 cap::replaceSelection(cur);
2074 buffer_.undo().recordUndo(cur);
2076 cur.innerText()->insertStringAsParagraphs(cur, tmpstr);
2078 cur.innerText()->insertStringAsLines(cur, tmpstr);