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/FileFilterList.h"
72 #include "support/filetools.h"
73 #include "support/gettext.h"
74 #include "support/lstrings.h"
75 #include "support/Package.h"
76 #include "support/types.h"
85 using namespace lyx::support;
89 namespace Alert = frontend::Alert;
93 /// Return an inset of this class if it exists at the current cursor position
95 T * getInsetByCode(Cursor const & cur, InsetCode code)
98 Inset * inset = it.nextInset();
99 if (inset && inset->lyxCode() == code)
100 return static_cast<T*>(inset);
105 bool findInset(DocIterator & dit, vector<InsetCode> const & codes,
108 bool findNextInset(DocIterator & dit, vector<InsetCode> const & codes,
109 docstring const & contents)
111 DocIterator tmpdit = dit;
114 Inset const * inset = tmpdit.nextInset();
116 && find(codes.begin(), codes.end(), inset->lyxCode()) != codes.end()
117 && (contents.empty() ||
118 static_cast<InsetCommand const *>(inset)->getFirstNonOptParam() == contents)) {
122 tmpdit.forwardInset();
129 /// Looks for next inset with one of the given codes.
130 bool findInset(DocIterator & dit, vector<InsetCode> const & codes,
134 DocIterator tmpdit = dit;
135 tmpdit.forwardInset();
140 Inset const * inset = tmpdit.nextInset();
142 && find(codes.begin(), codes.end(), inset->lyxCode()) != codes.end()) {
143 contents = static_cast<InsetCommand const *>(inset)->getFirstNonOptParam();
147 if (!findNextInset(tmpdit, codes, contents)) {
148 if (dit.depth() != 1 || dit.pit() != 0 || dit.pos() != 0) {
149 tmpdit = doc_iterator_begin(tmpdit.bottom().inset());
150 if (!findNextInset(tmpdit, codes, contents))
161 /// Looks for next inset with the given code
162 void findInset(DocIterator & dit, InsetCode code, bool same_content)
164 findInset(dit, vector<InsetCode>(1, code), same_content);
168 /// Moves cursor to the next inset with one of the given codes.
169 void gotoInset(BufferView * bv, vector<InsetCode> const & codes,
172 Cursor tmpcur = bv->cursor();
173 if (!findInset(tmpcur, codes, same_content)) {
174 bv->cursor().message(_("No more insets"));
178 tmpcur.clearSelection();
179 bv->setCursor(tmpcur);
184 /// Moves cursor to the next inset with given code.
185 void gotoInset(BufferView * bv, InsetCode code, bool same_content)
187 gotoInset(bv, vector<InsetCode>(1, code), same_content);
191 /// A map from a Text to the associated text metrics
192 typedef map<Text const *, TextMetrics> TextMetricsCache;
194 enum ScreenUpdateStrategy {
204 /////////////////////////////////////////////////////////////////////
208 /////////////////////////////////////////////////////////////////////
210 struct BufferView::Private
212 Private(BufferView & bv): wh_(0), cursor_(bv),
213 anchor_pit_(0), anchor_ypos_(0),
214 last_inset_(0), gui_(0)
218 ScrollbarParameters scrollbarParameters_;
220 ScreenUpdateStrategy update_strategy_;
222 CoordCache coord_cache_;
224 /// Estimated average par height for scrollbar.
226 /// this is used to handle XSelection events in the right manner.
235 pit_type anchor_pit_;
239 vector<int> par_height_;
241 /// keyboard mapping object.
244 /// last visited inset.
245 /** kept to send setMouseHover(false).
246 * Not owned, so don't delete.
250 mutable TextMetricsCache text_metrics_;
253 /** Not owned, so don't delete.
255 frontend::GuiBufferViewDelegate * gui_;
259 BufferView::BufferView(Buffer & buf)
260 : width_(0), height_(0), buffer_(buf), d(new Private(*this))
262 d->xsel_cache_.set = false;
263 d->intl_.initKeyMapper(lyxrc.use_kbmap);
265 d->cursor_.push(buffer_.inset());
266 d->cursor_.resetAnchor();
267 d->cursor_.setCurrentFont();
269 if (graphics::Previews::status() != LyXRC::PREVIEW_OFF)
270 graphics::Previews::get().generateBufferPreviews(buffer_);
274 BufferView::~BufferView()
276 // current buffer is going to be switched-off, save cursor pos
277 // Ideally, the whole cursor stack should be saved, but session
278 // currently can only handle bottom (whole document) level pit and pos.
279 // That is to say, if a cursor is in a nested inset, it will be
280 // restore to the left of the top level inset.
281 LastFilePosSection::FilePos fp;
282 fp.pit = d->cursor_.bottom().pit();
283 fp.pos = d->cursor_.bottom().pos();
284 LyX::ref().session().lastFilePos().save(buffer_.fileName(), fp);
290 Intl & BufferView::getIntl()
296 Intl const & BufferView::getIntl() const
302 CoordCache & BufferView::coordCache()
304 return d->coord_cache_;
308 CoordCache const & BufferView::coordCache() const
310 return d->coord_cache_;
314 Buffer & BufferView::buffer()
320 Buffer const & BufferView::buffer() const
326 bool BufferView::fitCursor()
328 if (cursorStatus(d->cursor_) == CUR_INSIDE) {
329 frontend::FontMetrics const & fm =
330 theFontMetrics(d->cursor_.getFont().fontInfo());
331 int const asc = fm.maxAscent();
332 int const des = fm.maxDescent();
333 Point const p = getPos(d->cursor_, d->cursor_.boundary());
334 if (p.y_ - asc >= 0 && p.y_ + des < height_)
341 void BufferView::processUpdateFlags(Update::flags flags)
343 // last_inset_ points to the last visited inset. This pointer may become
344 // invalid because of keyboard editing. Since all such operations
345 // causes screen update(), I reset last_inset_ to avoid such a problem.
347 // This is close to a hot-path.
348 LYXERR(Debug::DEBUG, "BufferView::processUpdateFlags()"
349 << "[fitcursor = " << (flags & Update::FitCursor)
350 << ", forceupdate = " << (flags & Update::Force)
351 << ", singlepar = " << (flags & Update::SinglePar)
352 << "] buffer: " << &buffer_);
354 buffer_.updateMacros();
356 // Now do the first drawing step if needed. This consists on updating
357 // the CoordCache in updateMetrics().
358 // The second drawing step is done in WorkArea::redraw() if needed.
360 // Case when no explicit update is requested.
362 // no need to redraw anything.
363 d->update_strategy_ = NoScreenUpdate;
367 if (flags == Update::Decoration) {
368 d->update_strategy_ = DecorationUpdate;
373 if (flags == Update::FitCursor
374 || flags == (Update::Decoration | Update::FitCursor)) {
375 // tell the frontend to update the screen if needed.
380 if (flags & Update::Decoration) {
381 d->update_strategy_ = DecorationUpdate;
385 // no screen update is needed.
386 d->update_strategy_ = NoScreenUpdate;
390 bool const full_metrics = flags & Update::Force || !singleParUpdate();
393 // We have to update the full screen metrics.
396 if (!(flags & Update::FitCursor)) {
397 // Nothing to do anymore. Trigger a redraw and return
402 // updateMetrics() does not update paragraph position
403 // This is done at draw() time. So we need a redraw!
407 // The cursor is off screen so ensure it is visible.
414 void BufferView::updateScrollbar()
419 Text & t = buffer_.text();
420 TextMetrics & tm = d->text_metrics_[&t];
422 LYXERR(Debug::GUI, " Updating scrollbar: height: "
423 << t.paragraphs().size()
424 << " curr par: " << d->cursor_.bottom().pit()
425 << " default height " << defaultRowHeight());
427 int const parsize = int(t.paragraphs().size());
428 if (d->par_height_.size() != parsize) {
429 d->par_height_.clear();
430 // FIXME: We assume a default paragraph height of 2 rows. This
431 // should probably be pondered with the screen width.
432 d->par_height_.resize(parsize, defaultRowHeight() * 2);
435 // It would be better to fix the scrollbar to understand
436 // values in [0..1] and divide everything by wh
438 // Look at paragraph heights on-screen
439 pit_type first_visible_pit = -1;
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 ParagraphMetrics const & pm = tm.parMetrics(pit);
444 d->par_height_[pit] = pm.height();
445 if (first_visible_pit >= 0 || pm.position() + pm.descent() <= 0)
447 first_visible_pit = pit;
448 LYXERR(Debug::SCROLLING, "first visible pit " << first_visible_pit);
449 // FIXME: we should look for the first visible row within
450 // the deepest inset!
451 int row_pos = pm.position();
452 size_t const nrows = pm.rows().size();
453 for (size_t i = 0; i != nrows; ++i) {
454 Row const & row = pm.rows()[i];
456 LYXERR(Debug::SCROLLING, "first visible row " << i
457 << "(row pos = " << row_pos << ");");
460 row_pos += row.height();
462 d->scrollbarParameters_.position = row_pos;
465 d->scrollbarParameters_.height = 0;
466 for (size_t i = 0; i != d->par_height_.size(); ++i) {
467 if (i == first_visible_pit)
468 d->scrollbarParameters_.position += d->scrollbarParameters_.height;
469 d->scrollbarParameters_.height += d->par_height_[i];
472 // We prefer fixed size line scrolling.
473 d->scrollbarParameters_.lineScrollHeight = defaultRowHeight();
477 ScrollbarParameters const & BufferView::scrollbarParameters() const
479 return d->scrollbarParameters_;
483 docstring BufferView::toolTip(int x, int y) const
485 // Get inset under mouse, if there is one.
486 Inset const * covering_inset = getCoveringInset(buffer_.text(), x, y);
488 // No inset, no tooltip...
490 return covering_inset->toolTip(*this, x, y);
494 docstring BufferView::contextMenu(int x, int y) const
496 // Get inset under mouse, if there is one.
497 Inset const * covering_inset = getCoveringInset(buffer_.text(), x, y);
499 return covering_inset->contextMenu(*this, x, y);
501 // FIXME: Do something more elaborate here.
502 return from_ascii("edit");
506 void BufferView::scrollDocView(int value)
508 int const offset = value - d->scrollbarParameters_.position;
509 // If the offset is less than 2 screen height, prefer to scroll instead.
510 if (abs(offset) <= 2 * height_) {
516 for (size_t i = 0; i != d->par_height_.size(); ++i) {
517 par_pos += d->par_height_[i];
518 if (par_pos >= value) {
519 d->anchor_pit_ = pit_type(i);
524 LYXERR(Debug::SCROLLING, "value = " << value
525 << "\tanchor_ref_ = " << d->anchor_pit_
526 << "\tpar_pos = " << par_pos);
528 d->anchor_ypos_ = par_pos - value;
534 // FIXME: this method is not working well.
535 void BufferView::setCursorFromScrollbar()
537 TextMetrics & tm = d->text_metrics_[&buffer_.text()];
539 int const height = 2 * defaultRowHeight();
540 int const first = height;
541 int const last = height_ - height;
542 Cursor & cur = d->cursor_;
544 switch (cursorStatus(cur)) {
546 // We reset the cursor because cursorStatus() does not
547 // work when the cursor is within mathed.
548 cur.reset(buffer_.inset());
549 tm.setCursorFromCoordinates(cur, 0, first);
550 cur.clearSelection();
553 // We reset the cursor because cursorStatus() does not
554 // work when the cursor is within mathed.
555 cur.reset(buffer_.inset());
556 tm.setCursorFromCoordinates(cur, 0, last);
557 cur.clearSelection();
560 int const y = getPos(cur, cur.boundary()).y_;
561 int const newy = min(last, max(y, first));
563 cur.reset(buffer_.inset());
564 tm.setCursorFromCoordinates(cur, 0, newy);
570 Change const BufferView::getCurrentChange() const
572 if (!d->cursor_.selection())
573 return Change(Change::UNCHANGED);
575 DocIterator dit = d->cursor_.selectionBegin();
576 return dit.paragraph().lookupChange(dit.pos());
580 // this could be used elsewhere as well?
581 // FIXME: This does not work within mathed!
582 CursorStatus BufferView::cursorStatus(DocIterator const & dit) const
584 Point const p = getPos(dit, dit.boundary());
587 if (p.y_ > workHeight())
593 void BufferView::saveBookmark(unsigned int idx)
595 // tenatively save bookmark, id and pos will be used to
596 // acturately locate a bookmark in a 'live' lyx session.
597 // pit and pos will be updated with bottom level pit/pos
599 LyX::ref().session().bookmarks().save(
601 d->cursor_.bottom().pit(),
602 d->cursor_.bottom().pos(),
603 d->cursor_.paragraph().id(),
608 // emit message signal.
609 message(_("Save bookmark"));
613 bool BufferView::moveToPosition(pit_type bottom_pit, pos_type bottom_pos,
614 int top_id, pos_type top_pos)
616 bool success = false;
619 d->cursor_.clearSelection();
621 // if a valid par_id is given, try it first
622 // This is the case for a 'live' bookmark when unique paragraph ID
623 // is used to track bookmarks.
625 ParIterator par = buffer_.getParFromID(top_id);
626 if (par != buffer_.par_iterator_end()) {
627 doc_it = makeDocIterator(par, min(par->size(), top_pos));
628 // Some slices of the iterator may not be
629 // reachable (e.g. closed collapsable inset)
630 // so the dociterator may need to be
631 // shortened. Otherwise, setCursor may crash
632 // lyx when the cursor can not be set to these
634 size_t const n = doc_it.depth();
635 for (size_t i = 0; i < n; ++i)
636 if (doc_it[i].inset().editable() != Inset::HIGHLY_EDITABLE) {
644 // if top_id == 0, or searching through top_id failed
645 // This is the case for a 'restored' bookmark when only bottom
646 // (document level) pit was saved. Because of this, bookmark
647 // restoration is inaccurate. If a bookmark was within an inset,
648 // it will be restored to the left of the outmost inset that contains
650 if (static_cast<size_t>(bottom_pit) < buffer_.paragraphs().size()) {
651 doc_it = doc_iterator_begin(buffer_.inset());
652 doc_it.pit() = bottom_pit;
653 doc_it.pos() = min(bottom_pos, doc_it.paragraph().size());
658 // Note: only bottom (document) level pit is set.
660 // set the current font.
661 d->cursor_.setCurrentFont();
662 // To center the screen on this new position we need the
663 // paragraph position which is computed at draw() time.
664 // So we need a redraw!
674 void BufferView::translateAndInsert(char_type c, Text * t, Cursor & cur)
676 if (lyxrc.rtl_support) {
677 if (d->cursor_.real_current_font.isRightToLeft()) {
678 if (d->intl_.keymap == Intl::PRIMARY)
679 d->intl_.keyMapSec();
681 if (d->intl_.keymap == Intl::SECONDARY)
682 d->intl_.keyMapPrim();
686 d->intl_.getTransManager().translateAndInsert(c, t, cur);
690 int BufferView::workWidth() const
696 void BufferView::showCursor()
698 // We are not properly started yet, delay until resizing is
703 LYXERR(Debug::SCROLLING, "recentering!");
705 CursorSlice & bot = d->cursor_.bottom();
706 TextMetrics & tm = d->text_metrics_[bot.text()];
708 pos_type const max_pit = pos_type(bot.text()->paragraphs().size() - 1);
709 int bot_pit = d->cursor_.bottom().pit();
710 if (bot_pit > max_pit) {
711 // FIXME: Why does this happen?
712 LYXERR0("bottom pit is greater that max pit: "
713 << bot_pit << " > " << max_pit);
717 if (bot_pit == tm.first().first - 1)
718 tm.newParMetricsUp();
719 else if (bot_pit == tm.last().first + 1)
720 tm.newParMetricsDown();
722 if (tm.has(bot_pit)) {
723 ParagraphMetrics const & pm = tm.parMetrics(bot_pit);
724 int offset = coordOffset(d->cursor_, d->cursor_.boundary()).y_;
725 int ypos = pm.position() + offset;
726 Dimension const & row_dim = d->cursor_.textRow().dimension();
727 if (ypos - row_dim.ascent() < 0)
728 scrollUp(- ypos + row_dim.ascent());
729 else if (ypos + row_dim.descent() > height_)
730 scrollDown(ypos - height_ + row_dim.descent());
731 // else, nothing to do, the cursor is already visible so we just return.
735 tm.redoParagraph(bot_pit);
736 ParagraphMetrics const & pm = tm.parMetrics(bot_pit);
737 int offset = coordOffset(d->cursor_, d->cursor_.boundary()).y_;
739 d->anchor_pit_ = bot_pit;
740 Dimension const & row_dim = d->cursor_.textRow().dimension();
742 if (d->anchor_pit_ == 0)
743 d->anchor_ypos_ = offset + pm.ascent();
744 else if (d->anchor_pit_ == max_pit)
745 d->anchor_ypos_ = height_ - offset - row_dim.descent();
747 d->anchor_ypos_ = offset + pm.ascent() - height_ / 2;
754 FuncStatus BufferView::getStatus(FuncRequest const & cmd)
758 Cursor & cur = d->cursor_;
760 switch (cmd.action) {
763 flag.enabled(buffer_.undo().hasUndoStack());
766 flag.enabled(buffer_.undo().hasRedoStack());
768 case LFUN_FILE_INSERT:
769 case LFUN_FILE_INSERT_PLAINTEXT_PARA:
770 case LFUN_FILE_INSERT_PLAINTEXT:
771 case LFUN_BOOKMARK_SAVE:
772 // FIXME: Actually, these LFUNS should be moved to Text
773 flag.enabled(cur.inTexted());
775 case LFUN_FONT_STATE:
776 case LFUN_LABEL_INSERT:
777 case LFUN_INFO_INSERT:
778 case LFUN_PARAGRAPH_GOTO:
780 case LFUN_REFERENCE_NEXT:
782 case LFUN_WORD_REPLACE:
785 case LFUN_MARK_TOGGLE:
786 case LFUN_SCREEN_RECENTER:
787 case LFUN_BIBTEX_DATABASE_ADD:
788 case LFUN_BIBTEX_DATABASE_DEL:
789 case LFUN_WORDS_COUNT:
790 case LFUN_NEXT_INSET_TOGGLE:
794 case LFUN_LABEL_GOTO: {
795 flag.enabled(!cmd.argument().empty()
796 || getInsetByCode<InsetRef>(cur, REF_CODE));
800 case LFUN_CHANGES_TRACK:
802 flag.setOnOff(buffer_.params().trackChanges);
805 case LFUN_CHANGES_OUTPUT:
807 flag.setOnOff(buffer_.params().outputChanges);
810 case LFUN_CHANGES_MERGE:
811 case LFUN_CHANGE_NEXT:
812 case LFUN_ALL_CHANGES_ACCEPT:
813 case LFUN_ALL_CHANGES_REJECT:
814 // TODO: context-sensitive enabling of LFUNs
815 // In principle, these command should only be enabled if there
816 // is a change in the document. However, without proper
817 // optimizations, this will inevitably result in poor performance.
821 case LFUN_BUFFER_TOGGLE_COMPRESSION: {
822 flag.setOnOff(buffer_.params().compressed);
826 case LFUN_BUFFER_TOGGLE_EMBEDDING: {
827 flag.setOnOff(buffer_.params().embedded);
832 case LFUN_SCREEN_DOWN:
837 // FIXME: LFUN_SCREEN_DOWN_SELECT should be removed from
838 // everywhere else before this can enabled:
839 case LFUN_SCREEN_UP_SELECT:
840 case LFUN_SCREEN_DOWN_SELECT:
844 case LFUN_LAYOUT_TABULAR:
845 flag.enabled(cur.innerInsetOfType(TABULAR_CODE));
849 case LFUN_LAYOUT_PARAGRAPH:
850 flag.enabled(cur.inset().forceDefaultParagraphs(cur.idx()));
853 case LFUN_INSET_SETTINGS: {
854 InsetCode code = cur.inset().lyxCode();
858 enable = cmd.argument() == "tabular";
861 enable = cmd.argument() == "ert";
864 enable = cmd.argument() == "float";
867 enable = cmd.argument() == "wrap";
870 enable = cmd.argument() == "note";
873 enable = cmd.argument() == "branch";
876 enable = cmd.argument() == "box";
879 enable = cmd.argument() == "listings";
884 flag.enabled(enable);
888 case LFUN_DIALOG_SHOW_NEW_INSET:
889 flag.enabled(cur.inset().lyxCode() != ERT_CODE &&
890 cur.inset().lyxCode() != LISTINGS_CODE);
891 if (cur.inset().lyxCode() == CAPTION_CODE) {
893 if (cur.inset().getStatus(cur, cmd, flag))
906 bool BufferView::dispatch(FuncRequest const & cmd)
908 //lyxerr << [ cmd = " << cmd << "]" << endl;
910 // Make sure that the cached BufferView is correct.
911 LYXERR(Debug::ACTION, " action[" << cmd.action << ']'
912 << " arg[" << to_utf8(cmd.argument()) << ']'
913 << " x[" << cmd.x << ']'
914 << " y[" << cmd.y << ']'
915 << " button[" << cmd.button() << ']');
917 Cursor & cur = d->cursor_;
919 switch (cmd.action) {
922 cur.message(_("Undo"));
923 cur.clearSelection();
925 cur.message(_("No further undo information"));
927 processUpdateFlags(Update::Force | Update::FitCursor);
931 cur.message(_("Redo"));
932 cur.clearSelection();
934 cur.message(_("No further redo information"));
936 processUpdateFlags(Update::Force | Update::FitCursor);
939 case LFUN_FONT_STATE:
940 cur.message(cur.currentState());
943 case LFUN_BOOKMARK_SAVE:
944 saveBookmark(convert<unsigned int>(to_utf8(cmd.argument())));
947 case LFUN_LABEL_GOTO: {
948 docstring label = cmd.argument();
951 getInsetByCode<InsetRef>(d->cursor_,
954 label = inset->getParam("reference");
955 // persistent=false: use temp_bookmark
965 case LFUN_PARAGRAPH_GOTO: {
966 int const id = convert<int>(to_utf8(cmd.argument()));
968 for (Buffer * b = &buffer_; i == 0 || b != &buffer_;
969 b = theBufferList().next(b)) {
971 ParIterator par = b->getParFromID(id);
972 if (par == b->par_iterator_end()) {
973 LYXERR(Debug::INFO, "No matching paragraph found! [" << id << "].");
975 LYXERR(Debug::INFO, "Paragraph " << par->id()
976 << " found in buffer `"
977 << b->absFileName() << "'.");
981 setCursor(makeDocIterator(par, 0));
984 // Switch to other buffer view and resend cmd
985 theLyXFunc().dispatch(FuncRequest(
986 LFUN_BUFFER_SWITCH, b->absFileName()));
987 theLyXFunc().dispatch(cmd);
997 gotoInset(this, NOTE_CODE, false);
1000 case LFUN_REFERENCE_NEXT: {
1001 vector<InsetCode> tmp;
1002 tmp.push_back(LABEL_CODE);
1003 tmp.push_back(REF_CODE);
1004 gotoInset(this, tmp, true);
1008 case LFUN_CHANGES_TRACK:
1009 buffer_.params().trackChanges = !buffer_.params().trackChanges;
1012 case LFUN_CHANGES_OUTPUT:
1013 buffer_.params().outputChanges = !buffer_.params().outputChanges;
1014 if (buffer_.params().outputChanges) {
1015 bool dvipost = LaTeXFeatures::isAvailable("dvipost");
1016 bool xcolorsoul = LaTeXFeatures::isAvailable("soul") &&
1017 LaTeXFeatures::isAvailable("xcolor");
1019 if (!dvipost && !xcolorsoul) {
1020 Alert::warning(_("Changes not shown in LaTeX output"),
1021 _("Changes will not be highlighted in LaTeX output, "
1022 "because neither dvipost nor xcolor/soul are installed.\n"
1023 "Please install these packages or redefine "
1024 "\\lyxadded and \\lyxdeleted in the LaTeX preamble."));
1025 } else if (!xcolorsoul) {
1026 Alert::warning(_("Changes not shown in LaTeX output"),
1027 _("Changes will not be highlighted in LaTeX output "
1028 "when using pdflatex, because xcolor and soul are not installed.\n"
1029 "Please install both packages or redefine "
1030 "\\lyxadded and \\lyxdeleted in the LaTeX preamble."));
1035 case LFUN_CHANGE_NEXT:
1036 findNextChange(this);
1039 case LFUN_CHANGES_MERGE:
1040 if (findNextChange(this))
1041 showDialog("changes");
1044 case LFUN_ALL_CHANGES_ACCEPT:
1045 // select complete document
1046 d->cursor_.reset(buffer_.inset());
1047 d->cursor_.selHandle(true);
1048 buffer_.text().cursorBottom(d->cursor_);
1049 // accept everything in a single step to support atomic undo
1050 buffer_.text().acceptOrRejectChanges(d->cursor_, Text::ACCEPT);
1053 case LFUN_ALL_CHANGES_REJECT:
1054 // select complete document
1055 d->cursor_.reset(buffer_.inset());
1056 d->cursor_.selHandle(true);
1057 buffer_.text().cursorBottom(d->cursor_);
1058 // reject everything in a single step to support atomic undo
1059 // Note: reject does not work recursively; the user may have to repeat the operation
1060 buffer_.text().acceptOrRejectChanges(d->cursor_, Text::REJECT);
1063 case LFUN_WORD_FIND:
1067 case LFUN_WORD_REPLACE: {
1068 bool has_deleted = false;
1069 if (cur.selection()) {
1070 DocIterator beg = cur.selectionBegin();
1071 DocIterator end = cur.selectionEnd();
1072 if (beg.pit() == end.pit()) {
1073 for (pos_type p = beg.pos() ; p < end.pos() ; ++p) {
1074 if (cur.paragraph().isDeleted(p))
1079 replace(this, cmd, has_deleted);
1084 cur.clearSelection();
1086 cur.message(from_utf8(N_("Mark off")));
1090 cur.clearSelection();
1093 cur.message(from_utf8(N_("Mark on")));
1096 case LFUN_MARK_TOGGLE:
1097 cur.clearSelection();
1100 cur.message(from_utf8(N_("Mark removed")));
1103 cur.message(from_utf8(N_("Mark set")));
1108 case LFUN_SCREEN_RECENTER:
1112 case LFUN_BIBTEX_DATABASE_ADD: {
1113 Cursor tmpcur = d->cursor_;
1114 findInset(tmpcur, BIBTEX_CODE, false);
1115 InsetBibtex * inset = getInsetByCode<InsetBibtex>(tmpcur,
1118 if (inset->addDatabase(to_utf8(cmd.argument())))
1119 buffer_.updateBibfilesCache();
1124 case LFUN_BIBTEX_DATABASE_DEL: {
1125 Cursor tmpcur = d->cursor_;
1126 findInset(tmpcur, BIBTEX_CODE, false);
1127 InsetBibtex * inset = getInsetByCode<InsetBibtex>(tmpcur,
1130 if (inset->delDatabase(to_utf8(cmd.argument())))
1131 buffer_.updateBibfilesCache();
1136 case LFUN_WORDS_COUNT: {
1137 DocIterator from, to;
1138 if (cur.selection()) {
1139 from = cur.selectionBegin();
1140 to = cur.selectionEnd();
1142 from = doc_iterator_begin(buffer_.inset());
1143 to = doc_iterator_end(buffer_.inset());
1145 int const count = countWords(from, to);
1148 if (cur.selection())
1149 message = bformat(_("%1$d words in selection."),
1152 message = bformat(_("%1$d words in document."),
1156 if (cur.selection())
1157 message = _("One word in selection.");
1159 message = _("One word in document.");
1162 Alert::information(_("Count words"), message);
1166 case LFUN_BUFFER_TOGGLE_COMPRESSION:
1167 // turn compression on/off
1168 buffer_.params().compressed = !buffer_.params().compressed;
1171 case LFUN_BUFFER_TOGGLE_EMBEDDING:
1172 // turn embedding on/off
1173 buffer_.embeddedFiles().enable(!buffer_.params().embedded);
1176 case LFUN_NEXT_INSET_TOGGLE: {
1177 // this is the real function we want to invoke
1178 FuncRequest tmpcmd = FuncRequest(LFUN_INSET_TOGGLE, cmd.origin);
1179 // if there is an inset at cursor, see whether it
1181 Inset * inset = cur.nextInset();
1183 if (inset->isActive()) {
1184 Cursor tmpcur = cur;
1185 tmpcur.pushBackward(*inset);
1186 inset->dispatch(tmpcur, tmpcmd);
1187 if (tmpcur.result().dispatched()) {
1190 } else if (inset->editable() == Inset::IS_EDITABLE) {
1191 inset->edit(cur, true);
1194 // if it did not work, try the underlying inset.
1195 if (!cur.result().dispatched())
1196 cur.dispatch(tmpcmd);
1198 if (!cur.result().dispatched())
1199 // It did not work too; no action needed.
1201 cur.clearSelection();
1202 processUpdateFlags(Update::SinglePar | Update::FitCursor);
1206 case LFUN_SCREEN_UP:
1207 case LFUN_SCREEN_DOWN: {
1208 Point p = getPos(cur, cur.boundary());
1209 if (p.y_ < 0 || p.y_ > height_) {
1210 // The cursor is off-screen so recenter before proceeding.
1212 p = getPos(cur, cur.boundary());
1214 scroll(cmd.action == LFUN_SCREEN_UP? - height_ : height_);
1215 cur.reset(buffer_.inset());
1216 d->text_metrics_[&buffer_.text()].editXY(cur, p.x_, p.y_);
1217 //FIXME: what to do with cur.x_target()?
1226 case LFUN_SCREEN_UP_SELECT:
1227 case LFUN_SCREEN_DOWN_SELECT: {
1228 // Those two are not ready yet for consumption.
1231 cur.selHandle(true);
1232 size_t initial_depth = cur.depth();
1233 Point const p = getPos(cur, cur.boundary());
1234 scroll(cmd.action == LFUN_SCREEN_UP_SELECT? - height_ : height_);
1235 // FIXME: We need to verify if the cursor stayed within an inset...
1236 //cur.reset(buffer_.inset());
1237 d->text_metrics_[&buffer_.text()].editXY(cur, p.x_, p.y_);
1239 while (cur.depth() > initial_depth) {
1242 // FIXME: we need to do a redraw again because of the selection
1243 // But no screen update is needed.
1244 d->update_strategy_ = NoScreenUpdate;
1257 docstring const BufferView::requestSelection()
1259 Cursor & cur = d->cursor_;
1261 if (!cur.selection()) {
1262 d->xsel_cache_.set = false;
1266 if (!d->xsel_cache_.set ||
1267 cur.top() != d->xsel_cache_.cursor ||
1268 cur.anchor_.top() != d->xsel_cache_.anchor)
1270 d->xsel_cache_.cursor = cur.top();
1271 d->xsel_cache_.anchor = cur.anchor_.top();
1272 d->xsel_cache_.set = cur.selection();
1273 return cur.selectionAsString(false);
1279 void BufferView::clearSelection()
1281 d->cursor_.clearSelection();
1282 // Clear the selection buffer. Otherwise a subsequent
1283 // middle-mouse-button paste would use the selection buffer,
1284 // not the more current external selection.
1285 cap::clearSelection();
1286 d->xsel_cache_.set = false;
1287 // The buffer did not really change, but this causes the
1288 // redraw we need because we cleared the selection above.
1293 void BufferView::resize(int width, int height)
1295 // Update from work area
1299 // Clear the paragraph height cache.
1300 d->par_height_.clear();
1306 Inset const * BufferView::getCoveringInset(Text const & text,
1309 TextMetrics & tm = d->text_metrics_[&text];
1310 Inset * inset = tm.checkInsetHit(x, y);
1314 if (!inset->descendable())
1315 // No need to go further down if the inset is not
1319 size_t cell_number = inset->nargs();
1320 // Check all the inner cell.
1321 for (size_t i = 0; i != cell_number; ++i) {
1322 Text const * inner_text = inset->getText(i);
1325 Inset const * inset_deeper =
1326 getCoveringInset(*inner_text, x, y);
1328 return inset_deeper;
1336 void BufferView::mouseEventDispatch(FuncRequest const & cmd0)
1338 //lyxerr << "[ cmd0 " << cmd0 << "]" << endl;
1340 // This is only called for mouse related events including
1341 // LFUN_FILE_OPEN generated by drag-and-drop.
1342 FuncRequest cmd = cmd0;
1345 cur.push(buffer_.inset());
1346 cur.selection() = d->cursor_.selection();
1348 // Either the inset under the cursor or the
1349 // surrounding Text will handle this event.
1351 // make sure we stay within the screen...
1352 cmd.y = min(max(cmd.y, -1), height_);
1354 if (cmd.action == LFUN_MOUSE_MOTION && cmd.button() == mouse_button::none) {
1356 // Get inset under mouse, if there is one.
1357 Inset const * covering_inset =
1358 getCoveringInset(buffer_.text(), cmd.x, cmd.y);
1359 if (covering_inset == d->last_inset_)
1360 // Same inset, no need to do anything...
1363 bool need_redraw = false;
1364 // const_cast because of setMouseHover().
1365 Inset * inset = const_cast<Inset *>(covering_inset);
1367 // Remove the hint on the last hovered inset (if any).
1368 need_redraw |= d->last_inset_->setMouseHover(false);
1370 // Highlighted the newly hovered inset (if any).
1371 need_redraw |= inset->setMouseHover(true);
1372 d->last_inset_ = inset;
1376 LYXERR(Debug::PAINTING, "Mouse hover detected at: ("
1377 << cmd.x << ", " << cmd.y << ")");
1379 d->update_strategy_ = DecorationUpdate;
1381 // This event (moving without mouse click) is not passed further.
1382 // This should be changed if it is further utilized.
1387 // Build temporary cursor.
1388 Inset * inset = d->text_metrics_[&buffer_.text()].editXY(cur, cmd.x, cmd.y);
1390 // Put anchor at the same position.
1393 // Try to dispatch to an non-editable inset near this position
1394 // via the temp cursor. If the inset wishes to change the real
1395 // cursor it has to do so explicitly by using
1396 // cur.bv().cursor() = cur; (or similar)
1398 inset->dispatch(cur, cmd);
1400 // Now dispatch to the temporary cursor. If the real cursor should
1401 // be modified, the inset's dispatch has to do so explicitly.
1402 if (!cur.result().dispatched())
1405 //Do we have a selection?
1406 theSelection().haveSelection(cursor().selection());
1408 // If the command has been dispatched,
1409 if (cur.result().dispatched()
1410 // an update is asked,
1411 && cur.result().update())
1412 processUpdateFlags(cur.result().update());
1416 void BufferView::lfunScroll(FuncRequest const & cmd)
1418 string const scroll_type = cmd.getArg(0);
1419 int const scroll_step =
1420 (scroll_type == "line")? d->scrollbarParameters_.lineScrollHeight
1421 : (scroll_type == "page")? height_ : 0;
1422 if (scroll_step == 0)
1424 string const scroll_quantity = cmd.getArg(1);
1425 if (scroll_quantity == "up")
1426 scrollUp(scroll_step);
1427 else if (scroll_quantity == "down")
1428 scrollDown(scroll_step);
1430 int const scroll_value = convert<int>(scroll_quantity);
1432 scroll(scroll_step * scroll_value);
1437 void BufferView::scroll(int y)
1446 void BufferView::scrollDown(int offset)
1448 Text * text = &buffer_.text();
1449 TextMetrics & tm = d->text_metrics_[text];
1450 int ymax = height_ + offset;
1452 pair<pit_type, ParagraphMetrics const *> last = tm.last();
1453 int bottom_pos = last.second->position() + last.second->descent();
1454 if (last.first + 1 == int(text->paragraphs().size())) {
1455 if (bottom_pos <= height_)
1457 offset = min(offset, bottom_pos - height_);
1460 if (bottom_pos > ymax)
1462 tm.newParMetricsDown();
1464 d->anchor_ypos_ -= offset;
1470 void BufferView::scrollUp(int offset)
1472 Text * text = &buffer_.text();
1473 TextMetrics & tm = d->text_metrics_[text];
1474 int ymin = - offset;
1476 pair<pit_type, ParagraphMetrics const *> first = tm.first();
1477 int top_pos = first.second->position() - first.second->ascent();
1478 if (first.first == 0) {
1481 offset = min(offset, - top_pos);
1486 tm.newParMetricsUp();
1488 d->anchor_ypos_ += offset;
1494 void BufferView::setCursorFromRow(int row)
1499 buffer_.texrow().getIdFromRow(row, tmpid, tmppos);
1501 d->cursor_.reset(buffer_.inset());
1503 buffer_.text().setCursor(d->cursor_, 0, 0);
1505 buffer_.text().setCursor(d->cursor_, buffer_.getParFromID(tmpid).pit(), tmppos);
1509 void BufferView::gotoLabel(docstring const & label)
1511 for (InsetIterator it = inset_iterator_begin(buffer_.inset()); it; ++it) {
1512 vector<docstring> labels;
1513 it->getLabelList(buffer_, labels);
1514 if (find(labels.begin(), labels.end(), label) != labels.end()) {
1523 TextMetrics const & BufferView::textMetrics(Text const * t) const
1525 return const_cast<BufferView *>(this)->textMetrics(t);
1529 TextMetrics & BufferView::textMetrics(Text const * t)
1531 TextMetricsCache::iterator tmc_it = d->text_metrics_.find(t);
1532 if (tmc_it == d->text_metrics_.end()) {
1533 tmc_it = d->text_metrics_.insert(
1534 make_pair(t, TextMetrics(this, const_cast<Text *>(t)))).first;
1536 return tmc_it->second;
1540 ParagraphMetrics const & BufferView::parMetrics(Text const * t,
1543 return textMetrics(t).parMetrics(pit);
1547 int BufferView::workHeight() const
1553 void BufferView::setCursor(DocIterator const & dit)
1555 size_t const n = dit.depth();
1556 for (size_t i = 0; i < n; ++i)
1557 dit[i].inset().edit(d->cursor_, true);
1559 d->cursor_.setCursor(dit);
1560 d->cursor_.selection() = false;
1564 bool BufferView::checkDepm(Cursor & cur, Cursor & old)
1566 // Would be wrong to delete anything if we have a selection.
1567 if (cur.selection())
1570 bool need_anchor_change = false;
1571 bool changed = d->cursor_.text()->deleteEmptyParagraphMechanism(cur, old,
1572 need_anchor_change);
1574 if (need_anchor_change)
1582 updateLabels(buffer_);
1590 bool BufferView::mouseSetCursor(Cursor & cur, bool select)
1592 BOOST_ASSERT(&cur.bv() == this);
1595 // this event will clear selection so we save selection for
1596 // persistent selection
1597 cap::saveSelection(cursor());
1599 // Has the cursor just left the inset?
1600 bool badcursor = false;
1601 bool leftinset = (&d->cursor_.inset() != &cur.inset());
1603 badcursor = notifyCursorLeaves(d->cursor_, cur);
1605 // FIXME: shift-mouse selection doesn't work well across insets.
1606 bool do_selection = select && &d->cursor_.anchor().inset() == &cur.inset();
1608 // do the dEPM magic if needed
1609 // FIXME: (1) move this to InsetText::notifyCursorLeaves?
1610 // FIXME: (2) if we had a working InsetText::notifyCursorLeaves,
1611 // the leftinset bool would not be necessary (badcursor instead).
1612 bool update = leftinset;
1613 if (!do_selection && !badcursor && d->cursor_.inTexted())
1614 update |= checkDepm(cur, d->cursor_);
1616 // if the cursor was in an empty script inset and the new
1617 // position is in the nucleus of the inset, notifyCursorLeaves
1618 // will kill the script inset itself. So we check all the
1619 // elements of the cursor to make sure that they are correct.
1620 // For an example, see bug 2933:
1621 // http://bugzilla.lyx.org/show_bug.cgi?id=2933
1622 // The code below could maybe be moved to a DocIterator method.
1623 //lyxerr << "cur before " << cur <<endl;
1624 DocIterator dit(cur.inset());
1625 dit.push_back(cur.bottom());
1627 while (i < cur.depth() && dit.nextInset() == &cur[i].inset()) {
1628 dit.push_back(cur[i]);
1631 //lyxerr << "5 cur after" << dit <<endl;
1633 d->cursor_.setCursor(dit);
1634 d->cursor_.boundary(cur.boundary());
1636 d->cursor_.setSelection();
1638 d->cursor_.clearSelection();
1640 d->cursor_.finishUndo();
1641 d->cursor_.setCurrentFont();
1646 void BufferView::putSelectionAt(DocIterator const & cur,
1647 int length, bool backwards)
1649 d->cursor_.clearSelection();
1655 d->cursor_.pos() += length;
1656 d->cursor_.setSelection(d->cursor_, -length);
1658 d->cursor_.setSelection(d->cursor_, length);
1663 Cursor & BufferView::cursor()
1669 Cursor const & BufferView::cursor() const
1675 pit_type BufferView::anchor_ref() const
1677 return d->anchor_pit_;
1681 bool BufferView::singleParUpdate()
1683 Text & buftext = buffer_.text();
1684 pit_type const bottom_pit = d->cursor_.bottom().pit();
1685 TextMetrics & tm = textMetrics(&buftext);
1686 int old_height = tm.parMetrics(bottom_pit).height();
1688 // In Single Paragraph mode, rebreak only
1689 // the (main text, not inset!) paragraph containing the cursor.
1690 // (if this paragraph contains insets etc., rebreaking will
1691 // recursively descend)
1692 tm.redoParagraph(bottom_pit);
1693 ParagraphMetrics const & pm = tm.parMetrics(bottom_pit);
1694 if (pm.height() != old_height)
1695 // Paragraph height has changed so we cannot proceed to
1696 // the singlePar optimisation.
1699 d->update_strategy_ = SingleParUpdate;
1701 LYXERR(Debug::PAINTING, "\ny1: " << pm.position() - pm.ascent()
1702 << " y2: " << pm.position() + pm.descent()
1703 << " pit: " << bottom_pit
1704 << " singlepar: 1");
1709 void BufferView::updateMetrics()
1711 Text & buftext = buffer_.text();
1712 pit_type const npit = int(buftext.paragraphs().size());
1714 // Clear out the position cache in case of full screen redraw,
1715 d->coord_cache_.clear();
1717 // Clear out paragraph metrics to avoid having invalid metrics
1718 // in the cache from paragraphs not relayouted below
1719 // The complete text metrics will be redone.
1720 d->text_metrics_.clear();
1722 TextMetrics & tm = textMetrics(&buftext);
1724 // Rebreak anchor paragraph.
1725 tm.redoParagraph(d->anchor_pit_);
1726 ParagraphMetrics & anchor_pm = tm.par_metrics_[d->anchor_pit_];
1727 anchor_pm.setPosition(d->anchor_ypos_);
1729 LYXERR(Debug::PAINTING, "metrics: "
1730 << " anchor pit = " << d->anchor_pit_
1731 << " anchor ypos = " << d->anchor_ypos_);
1733 // Redo paragraphs above anchor if necessary.
1734 int y1 = d->anchor_ypos_ - anchor_pm.ascent();
1735 // We are now just above the anchor paragraph.
1736 pit_type pit1 = d->anchor_pit_ - 1;
1737 for (; pit1 >= 0 && y1 >= 0; --pit1) {
1738 tm.redoParagraph(pit1);
1739 ParagraphMetrics & pm = tm.par_metrics_[pit1];
1741 // Save the paragraph position in the cache.
1746 // Redo paragraphs below the anchor if necessary.
1747 int y2 = d->anchor_ypos_ + anchor_pm.descent();
1748 // We are now just below the anchor paragraph.
1749 pit_type pit2 = d->anchor_pit_ + 1;
1750 for (; pit2 < npit && y2 <= height_; ++pit2) {
1751 tm.redoParagraph(pit2);
1752 ParagraphMetrics & pm = tm.par_metrics_[pit2];
1754 // Save the paragraph position in the cache.
1759 LYXERR(Debug::PAINTING, "Metrics: "
1760 << " anchor pit = " << d->anchor_pit_
1761 << " anchor ypos = " << d->anchor_ypos_
1764 << " pit1 = " << pit1
1765 << " pit2 = " << pit2);
1767 d->update_strategy_ = FullScreenUpdate;
1769 if (lyxerr.debugging(Debug::WORKAREA)) {
1770 LYXERR(Debug::WORKAREA, "BufferView::updateMetrics");
1771 d->coord_cache_.dump();
1776 void BufferView::insertLyXFile(FileName const & fname)
1778 BOOST_ASSERT(d->cursor_.inTexted());
1780 // Get absolute path of file and add ".lyx"
1781 // to the filename if necessary
1782 FileName filename = fileSearch(string(), fname.absFilename(), "lyx");
1784 docstring const disp_fn = makeDisplayPath(filename.absFilename());
1785 // emit message signal.
1786 message(bformat(_("Inserting document %1$s..."), disp_fn));
1789 Buffer buf("", false);
1790 if (buf.loadLyXFile(filename)) {
1791 ErrorList & el = buffer_.errorList("Parse");
1792 // Copy the inserted document error list into the current buffer one.
1793 el = buf.errorList("Parse");
1794 buffer_.undo().recordUndo(d->cursor_);
1795 cap::pasteParagraphList(d->cursor_, buf.paragraphs(),
1796 buf.params().getTextClassPtr(), el);
1797 res = _("Document %1$s inserted.");
1799 res = _("Could not insert document %1$s");
1804 // emit message signal.
1805 message(bformat(res, disp_fn));
1806 buffer_.errors("Parse");
1810 Point BufferView::coordOffset(DocIterator const & dit, bool boundary) const
1816 // Addup contribution of nested insets, from inside to outside,
1817 // keeping the outer paragraph for a special handling below
1818 for (size_t i = dit.depth() - 1; i >= 1; --i) {
1819 CursorSlice const & sl = dit[i];
1823 // get relative position inside sl.inset()
1824 sl.inset().cursorPos(*this, sl, boundary && (i + 1 == dit.depth()), xx, yy);
1826 // Make relative position inside of the edited inset relative to sl.inset()
1830 // In case of an RTL inset, the edited inset will be positioned to the left
1833 bool boundary_i = boundary && i + 1 == dit.depth();
1834 bool rtl = textMetrics(sl.text()).isRTL(sl, boundary_i);
1839 // remember width for the case that sl.inset() is positioned in an RTL inset
1840 if (i && dit[i - 1].text()) {
1841 // If this Inset is inside a Text Inset, retrieve the Dimension
1842 // from the containing text instead of using Inset::dimension() which
1843 // might not be implemented.
1844 // FIXME (Abdel 23/09/2007): this is a bit messy because of the
1845 // elimination of Inset::dim_ cache. This coordOffset() method needs
1846 // to be rewritten in light of the new design.
1847 Dimension const & dim = parMetrics(dit[i - 1].text(),
1848 dit[i - 1].pit()).insetDimension(&sl.inset());
1851 Dimension const dim = sl.inset().dimension(*this);
1855 //lyxerr << "Cursor::getPos, i: "
1856 // << i << " x: " << xx << " y: " << y << endl;
1859 // Add contribution of initial rows of outermost paragraph
1860 CursorSlice const & sl = dit[0];
1861 TextMetrics const & tm = textMetrics(sl.text());
1862 ParagraphMetrics const & pm = tm.parMetrics(sl.pit());
1863 BOOST_ASSERT(!pm.rows().empty());
1864 y -= pm.rows()[0].ascent();
1866 // FIXME: document this mess
1868 if (sl.pos() > 0 && dit.depth() == 1) {
1870 if (pos && boundary)
1872 // lyxerr << "coordOffset: boundary:" << boundary << " depth:" << dit.depth() << " pos:" << pos << " sl.pos:" << sl.pos() << endl;
1873 rend = pm.pos2row(pos);
1875 rend = pm.pos2row(sl.pos());
1877 size_t rend = pm.pos2row(sl.pos());
1879 for (size_t rit = 0; rit != rend; ++rit)
1880 y += pm.rows()[rit].height();
1881 y += pm.rows()[rend].ascent();
1883 TextMetrics const & bottom_tm = textMetrics(dit.bottom().text());
1885 // Make relative position from the nested inset now bufferview absolute.
1886 int xx = bottom_tm.cursorX(dit.bottom(), boundary && dit.depth() == 1);
1889 // In the RTL case place the nested inset at the left of the cursor in
1890 // the outer paragraph
1891 bool boundary_1 = boundary && 1 == dit.depth();
1892 bool rtl = bottom_tm.isRTL(dit.bottom(), boundary_1);
1900 Point BufferView::getPos(DocIterator const & dit, bool boundary) const
1902 CursorSlice const & bot = dit.bottom();
1903 TextMetrics const & tm = textMetrics(bot.text());
1904 if (!tm.has(bot.pit()))
1905 return Point(-1, -1);
1907 Point p = coordOffset(dit, boundary); // offset from outer paragraph
1908 p.y_ += tm.parMetrics(bot.pit()).position();
1913 void BufferView::draw(frontend::Painter & pain)
1915 LYXERR(Debug::PAINTING, "\t\t*** START DRAWING ***");
1916 Text & text = buffer_.text();
1917 TextMetrics const & tm = d->text_metrics_[&text];
1918 int const y = tm.first().second->position();
1919 PainterInfo pi(this, pain);
1921 switch (d->update_strategy_) {
1923 case NoScreenUpdate:
1924 // If no screen painting is actually needed, only some the different
1925 // coordinates of insets and paragraphs needs to be updated.
1926 pi.full_repaint = true;
1927 pi.pain.setDrawingEnabled(false);
1931 case SingleParUpdate:
1932 pi.full_repaint = false;
1933 // In general, only the current row of the outermost paragraph
1934 // will be redrawn. Particular cases where selection spans
1935 // multiple paragraph are correctly detected in TextMetrics.
1939 case DecorationUpdate:
1940 // FIXME: We should also distinguish DecorationUpdate to avoid text
1941 // drawing if possible. This is not possible to do easily right now
1942 // because of the single backing pixmap.
1944 case FullScreenUpdate:
1945 // The whole screen, including insets, will be refreshed.
1946 pi.full_repaint = true;
1948 // Clear background.
1949 pain.fillRectangle(0, 0, width_, height_,
1950 buffer_.inset().backgroundColor());
1955 // and possibly grey out below
1956 pair<pit_type, ParagraphMetrics const *> lastpm = tm.last();
1957 int const y2 = lastpm.second->position() + lastpm.second->descent();
1959 pain.fillRectangle(0, y2, width_, height_ - y2, Color_bottomarea);
1962 LYXERR(Debug::PAINTING, "\n\t\t*** END DRAWING ***");
1964 // The scrollbar needs an update.
1967 // Normalize anchor for next time
1968 pair<pit_type, ParagraphMetrics const *> firstpm = tm.first();
1969 pair<pit_type, ParagraphMetrics const *> lastpm = tm.last();
1970 for (pit_type pit = firstpm.first; pit <= lastpm.first; ++pit) {
1971 ParagraphMetrics const & pm = tm.parMetrics(pit);
1972 if (pm.position() + pm.descent() > 0) {
1973 d->anchor_pit_ = pit;
1974 d->anchor_ypos_ = pm.position();
1978 LYXERR(Debug::PAINTING, "Found new anchor pit = " << d->anchor_pit_
1979 << " anchor ypos = " << d->anchor_ypos_);
1983 void BufferView::message(docstring const & msg)
1986 d->gui_->message(msg);
1990 void BufferView::showDialog(string const & name)
1993 d->gui_->showDialog(name, string());
1997 void BufferView::showDialog(string const & name,
1998 string const & data, Inset * inset)
2001 d->gui_->showDialog(name, data, inset);
2005 void BufferView::updateDialog(string const & name, string const & data)
2008 d->gui_->updateDialog(name, data);
2012 void BufferView::setGuiDelegate(frontend::GuiBufferViewDelegate * gui)
2018 // FIXME: Move this out of BufferView again
2019 docstring BufferView::contentsOfPlaintextFile(FileName const & fname)
2021 if (!fname.isReadableFile()) {
2022 docstring const error = from_ascii(strerror(errno));
2023 docstring const file = makeDisplayPath(fname.absFilename(), 50);
2024 docstring const text =
2025 bformat(_("Could not read the specified document\n"
2026 "%1$s\ndue to the error: %2$s"), file, error);
2027 Alert::error(_("Could not read file"), text);
2031 if (!fname.isReadableFile()) {
2032 docstring const file = makeDisplayPath(fname.absFilename(), 50);
2033 docstring const text =
2034 bformat(_("%1$s\n is not readable."), file);
2035 Alert::error(_("Could not open file"), text);
2039 // FIXME UNICODE: We don't know the encoding of the file
2040 docstring file_content = fname.fileContents("UTF-8");
2041 if (file_content.empty()) {
2042 Alert::error(_("Reading not UTF-8 encoded file"),
2043 _("The file is not UTF-8 encoded.\n"
2044 "It will be read as local 8Bit-encoded.\n"
2045 "If this does not give the correct result\n"
2046 "then please change the encoding of the file\n"
2047 "to UTF-8 with a program other than LyX.\n"));
2048 file_content = fname.fileContents("local8bit");
2051 return normalize_c(file_content);
2055 void BufferView::insertPlaintextFile(FileName const & f, bool asParagraph)
2057 docstring const tmpstr = contentsOfPlaintextFile(f);
2062 Cursor & cur = cursor();
2063 cap::replaceSelection(cur);
2064 buffer_.undo().recordUndo(cur);
2066 cur.innerText()->insertStringAsParagraphs(cur, tmpstr);
2068 cur.innerText()->insertStringAsLines(cur, tmpstr);