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"
19 #include "BranchList.h"
21 #include "buffer_funcs.h"
22 #include "BufferList.h"
23 #include "BufferParams.h"
24 #include "CoordCache.h"
26 #include "CutAndPaste.h"
27 #include "DispatchResult.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"
37 #include "LayoutFile.h"
41 #include "LyXAction.h"
45 #include "MetricsInfo.h"
46 #include "Paragraph.h"
47 #include "ParagraphParameters.h"
48 #include "ParIterator.h"
49 #include "RowPainter.h"
52 #include "TextClass.h"
53 #include "TextMetrics.h"
55 #include "TocBackend.h"
56 #include "WordLangTuple.h"
58 #include "insets/InsetBibtex.h"
59 #include "insets/InsetCitation.h"
60 #include "insets/InsetCommand.h" // ChangeRefs
61 #include "insets/InsetExternal.h"
62 #include "insets/InsetGraphics.h"
63 #include "insets/InsetNote.h"
64 #include "insets/InsetRef.h"
65 #include "insets/InsetText.h"
67 #include "mathed/MathData.h"
69 #include "frontends/alert.h"
70 #include "frontends/Application.h"
71 #include "frontends/Delegates.h"
72 #include "frontends/FontMetrics.h"
73 #include "frontends/Painter.h"
74 #include "frontends/Selection.h"
76 #include "support/convert.h"
77 #include "support/debug.h"
78 #include "support/ExceptionMessage.h"
79 #include "support/filetools.h"
80 #include "support/gettext.h"
81 #include "support/lassert.h"
82 #include "support/lstrings.h"
83 #include "support/Package.h"
84 #include "support/types.h"
94 using namespace lyx::support;
98 namespace Alert = frontend::Alert;
102 /// Return an inset of this class if it exists at the current cursor position
104 T * getInsetByCode(Cursor const & cur, InsetCode code)
106 DocIterator it = cur;
107 Inset * inset = it.nextInset();
108 if (inset && inset->lyxCode() == code)
109 return static_cast<T*>(inset);
114 /// Note that comparing contents can only be used for InsetCommand
115 bool findNextInset(DocIterator & dit, vector<InsetCode> const & codes,
116 docstring const & contents)
118 DocIterator tmpdit = dit;
121 Inset const * inset = tmpdit.nextInset();
123 bool const valid_code = std::find(codes.begin(), codes.end(),
124 inset->lyxCode()) != codes.end();
125 InsetCommand const * ic = inset->asInsetCommand();
126 bool const same_or_no_contents = contents.empty()
127 || (ic && (ic->getFirstNonOptParam() == contents));
129 if (valid_code && same_or_no_contents) {
134 tmpdit.forwardInset();
141 /// Looks for next inset with one of the given codes.
142 /// Note that same_content can only be used for InsetCommand
143 bool findInset(DocIterator & dit, vector<InsetCode> const & codes,
147 DocIterator tmpdit = dit;
148 tmpdit.forwardInset();
152 Inset const * inset = tmpdit.nextInset();
153 if (same_content && inset) {
154 InsetCommand const * ic = inset->asInsetCommand();
156 bool const valid_code = std::find(codes.begin(), codes.end(),
157 ic->lyxCode()) != codes.end();
159 contents = ic->getFirstNonOptParam();
163 if (!findNextInset(tmpdit, codes, contents)) {
164 if (dit.depth() != 1 || dit.pit() != 0 || dit.pos() != 0) {
165 Inset * inset = &tmpdit.bottom().inset();
166 tmpdit = doc_iterator_begin(&inset->buffer(), inset);
167 if (!findNextInset(tmpdit, codes, contents))
179 /// Looks for next inset with the given code
180 void findInset(DocIterator & dit, InsetCode code, bool same_content)
182 findInset(dit, vector<InsetCode>(1, code), same_content);
186 /// Moves cursor to the next inset with one of the given codes.
187 void gotoInset(BufferView * bv, vector<InsetCode> const & codes,
190 Cursor tmpcur = bv->cursor();
191 if (!findInset(tmpcur, codes, same_content)) {
192 bv->cursor().message(_("No more insets"));
196 tmpcur.clearSelection();
197 bv->setCursor(tmpcur);
202 /// Moves cursor to the next inset with given code.
203 void gotoInset(BufferView * bv, InsetCode code, bool same_content)
205 gotoInset(bv, vector<InsetCode>(1, code), same_content);
209 /// A map from a Text to the associated text metrics
210 typedef map<Text const *, TextMetrics> TextMetricsCache;
212 enum ScreenUpdateStrategy {
222 /////////////////////////////////////////////////////////////////////
226 /////////////////////////////////////////////////////////////////////
228 struct BufferView::Private
230 Private(BufferView & bv) : update_strategy_(NoScreenUpdate),
232 anchor_pit_(0), anchor_ypos_(0),
233 inlineCompletionUniqueChars_(0),
234 last_inset_(0), clickable_inset_(false),
235 mouse_position_cache_(),
236 bookmark_edit_position_(-1), gui_(0),
237 horiz_scroll_offset_(0)
239 xsel_cache_.set = false;
243 ScrollbarParameters scrollbarParameters_;
245 ScreenUpdateStrategy update_strategy_;
247 CoordCache coord_cache_;
249 /// Estimated average par height for scrollbar.
251 /// this is used to handle XSelection events in the right manner.
260 pit_type anchor_pit_;
264 vector<int> par_height_;
267 DocIterator inlineCompletionPos_;
269 docstring inlineCompletion_;
271 size_t inlineCompletionUniqueChars_;
273 /// keyboard mapping object.
276 /// last visited inset.
277 /** kept to send setMouseHover(false).
278 * Not owned, so don't delete.
280 Inset const * last_inset_;
281 /// are we hovering something that we can click
282 bool clickable_inset_;
284 /// position of the mouse at the time of the last mouse move
285 /// This is used to update the hovering status of inset in
286 /// cases where the buffer is scrolled, but the mouse didn't move.
287 Point mouse_position_cache_;
289 // cache for id of the paragraph which was edited the last time
290 int bookmark_edit_position_;
292 mutable TextMetricsCache text_metrics_;
295 /** Not owned, so don't delete.
297 frontend::GuiBufferViewDelegate * gui_;
299 /// Cache for Find Next
300 FuncRequest search_request_cache_;
303 map<string, Inset *> edited_insets_;
305 /// When the row where the cursor lies is scrolled, this
306 /// contains the scroll offset
307 int horiz_scroll_offset_;
308 /// a slice pointing to the start of the row where the cursor
309 /// is (at last draw time)
310 CursorSlice current_row_slice_;
311 /// a slice pointing to the start of the row where cursor was
312 /// at previous draw event
313 CursorSlice last_row_slice_;
317 BufferView::BufferView(Buffer & buf)
318 : width_(0), height_(0), full_screen_(false), buffer_(buf),
319 d(new Private(*this))
321 d->xsel_cache_.set = false;
322 d->intl_.initKeyMapper(lyxrc.use_kbmap);
324 d->cursor_.setBuffer(&buf);
325 d->cursor_.push(buffer_.inset());
326 d->cursor_.resetAnchor();
327 d->cursor_.setCurrentFont();
329 buffer_.updatePreviews();
333 BufferView::~BufferView()
335 // current buffer is going to be switched-off, save cursor pos
336 // Ideally, the whole cursor stack should be saved, but session
337 // currently can only handle bottom (whole document) level pit and pos.
338 // That is to say, if a cursor is in a nested inset, it will be
339 // restore to the left of the top level inset.
340 LastFilePosSection::FilePos fp;
341 fp.pit = d->cursor_.bottom().pit();
342 fp.pos = d->cursor_.bottom().pos();
343 theSession().lastFilePos().save(buffer_.fileName(), fp);
346 d->last_inset_->setMouseHover(this, false);
352 int BufferView::rightMargin() const
354 // The value used to be hardcoded to 10, which is 2.5mm at 100dpi
355 int const default_margin = Length(2.5, Length::MM).inPixels(0);
356 // The additional test for the case the outliner is opened.
357 if (!full_screen_ || !lyxrc.full_screen_limit
358 || width_ < lyxrc.full_screen_width + 2 * default_margin)
359 return default_margin;
361 return (width_ - lyxrc.full_screen_width) / 2;
365 int BufferView::leftMargin() const
367 return rightMargin();
371 bool BufferView::isTopScreen() const
373 return d->scrollbarParameters_.position == d->scrollbarParameters_.min;
377 bool BufferView::isBottomScreen() const
379 return d->scrollbarParameters_.position == d->scrollbarParameters_.max;
383 Intl & BufferView::getIntl()
389 Intl const & BufferView::getIntl() const
395 CoordCache & BufferView::coordCache()
397 return d->coord_cache_;
401 CoordCache const & BufferView::coordCache() const
403 return d->coord_cache_;
407 Buffer & BufferView::buffer()
413 Buffer const & BufferView::buffer() const
419 bool BufferView::needsFitCursor() const
421 if (cursorStatus(d->cursor_) == CUR_INSIDE) {
422 frontend::FontMetrics const & fm =
423 theFontMetrics(d->cursor_.getFont().fontInfo());
424 int const asc = fm.maxAscent();
425 int const des = fm.maxDescent();
426 Point const p = getPos(d->cursor_);
427 if (p.y_ - asc >= 0 && p.y_ + des < height_)
434 void BufferView::processUpdateFlags(Update::flags flags)
436 // This is close to a hot-path.
437 LYXERR(Debug::PAINTING, "BufferView::processUpdateFlags()"
438 << "[fitcursor = " << (flags & Update::FitCursor)
439 << ", forceupdate = " << (flags & Update::Force)
440 << ", singlepar = " << (flags & Update::SinglePar)
441 << "] buffer: " << &buffer_);
443 // FIXME Does this really need doing here? It's done in updateBuffer, and
444 // if the Buffer doesn't need updating, then do the macros?
445 buffer_.updateMacros();
447 // Now do the first drawing step if needed. This consists on updating
448 // the CoordCache in updateMetrics().
449 // The second drawing step is done in WorkArea::redraw() if needed.
450 // FIXME: is this still true now that Buffer::changed() is used all over?
452 // Case when no explicit update is requested.
454 // no need to redraw anything.
455 d->update_strategy_ = NoScreenUpdate;
459 if (flags == Update::Decoration) {
460 d->update_strategy_ = DecorationUpdate;
461 buffer_.changed(false);
465 if (flags == Update::FitCursor
466 || flags == (Update::Decoration | Update::FitCursor)) {
467 // tell the frontend to update the screen if needed.
468 if (needsFitCursor()) {
472 if (flags & Update::Decoration) {
473 d->update_strategy_ = DecorationUpdate;
474 buffer_.changed(false);
477 // no screen update is needed in principle, but this
478 // could change if cursor row needs horizontal scrolling.
479 d->update_strategy_ = NoScreenUpdate;
480 buffer_.changed(false);
484 bool const full_metrics = flags & Update::Force || !singleParUpdate();
487 // We have to update the full screen metrics.
490 if (!(flags & Update::FitCursor)) {
491 // Nothing to do anymore. Trigger a redraw and return
492 buffer_.changed(false);
496 // updateMetrics() does not update paragraph position
497 // This is done at draw() time. So we need a redraw!
498 buffer_.changed(false);
500 if (needsFitCursor()) {
501 // The cursor is off screen so ensure it is visible.
506 updateHoveredInset();
510 void BufferView::updateScrollbar()
512 if (height_ == 0 && width_ == 0)
515 // We prefer fixed size line scrolling.
516 d->scrollbarParameters_.single_step = defaultRowHeight();
517 // We prefer full screen page scrolling.
518 d->scrollbarParameters_.page_step = height_;
520 Text & t = buffer_.text();
521 TextMetrics & tm = d->text_metrics_[&t];
523 LYXERR(Debug::GUI, " Updating scrollbar: height: "
524 << t.paragraphs().size()
525 << " curr par: " << d->cursor_.bottom().pit()
526 << " default height " << defaultRowHeight());
528 size_t const parsize = t.paragraphs().size();
529 if (d->par_height_.size() != parsize) {
530 d->par_height_.clear();
531 // FIXME: We assume a default paragraph height of 2 rows. This
532 // should probably be pondered with the screen width.
533 d->par_height_.resize(parsize, defaultRowHeight() * 2);
536 // Look at paragraph heights on-screen
537 pair<pit_type, ParagraphMetrics const *> first = tm.first();
538 pair<pit_type, ParagraphMetrics const *> last = tm.last();
539 for (pit_type pit = first.first; pit <= last.first; ++pit) {
540 d->par_height_[pit] = tm.parMetrics(pit).height();
541 LYXERR(Debug::SCROLLING, "storing height for pit " << pit << " : "
542 << d->par_height_[pit]);
545 int top_pos = first.second->position() - first.second->ascent();
546 int bottom_pos = last.second->position() + last.second->descent();
547 bool first_visible = first.first == 0 && top_pos >= 0;
548 bool last_visible = last.first + 1 == int(parsize) && bottom_pos <= height_;
549 if (first_visible && last_visible) {
550 d->scrollbarParameters_.min = 0;
551 d->scrollbarParameters_.max = 0;
555 d->scrollbarParameters_.min = top_pos;
556 for (size_t i = 0; i != size_t(first.first); ++i)
557 d->scrollbarParameters_.min -= d->par_height_[i];
558 d->scrollbarParameters_.max = bottom_pos;
559 for (size_t i = last.first + 1; i != parsize; ++i)
560 d->scrollbarParameters_.max += d->par_height_[i];
562 d->scrollbarParameters_.position = 0;
563 // The reference is the top position so we remove one page.
564 if (lyxrc.scroll_below_document)
565 d->scrollbarParameters_.max -= minVisiblePart();
567 d->scrollbarParameters_.max -= d->scrollbarParameters_.page_step;
571 ScrollbarParameters const & BufferView::scrollbarParameters() const
573 return d->scrollbarParameters_;
577 docstring BufferView::toolTip(int x, int y) const
579 // Get inset under mouse, if there is one.
580 Inset const * covering_inset = getCoveringInset(buffer_.text(), x, y);
582 // No inset, no tooltip...
584 return covering_inset->toolTip(*this, x, y);
588 string BufferView::contextMenu(int x, int y) const
590 //If there is a selection, return the containing inset menu
591 if (d->cursor_.selection())
592 return d->cursor_.inset().contextMenu(*this, x, y);
594 // Get inset under mouse, if there is one.
595 Inset const * covering_inset = getCoveringInset(buffer_.text(), x, y);
597 return covering_inset->contextMenu(*this, x, y);
599 return buffer_.inset().contextMenu(*this, x, y);
603 void BufferView::scrollDocView(int value, bool update)
605 int const offset = value - d->scrollbarParameters_.position;
607 // No scrolling at all? No need to redraw anything
611 // If the offset is less than 2 screen height, prefer to scroll instead.
612 if (abs(offset) <= 2 * height_) {
613 d->anchor_ypos_ -= offset;
614 buffer_.changed(true);
615 updateHoveredInset();
619 // cut off at the top
620 if (value <= d->scrollbarParameters_.min) {
621 DocIterator dit = doc_iterator_begin(&buffer_);
622 showCursor(dit, false, update);
623 LYXERR(Debug::SCROLLING, "scroll to top");
627 // cut off at the bottom
628 if (value >= d->scrollbarParameters_.max) {
629 DocIterator dit = doc_iterator_end(&buffer_);
631 showCursor(dit, false, update);
632 LYXERR(Debug::SCROLLING, "scroll to bottom");
636 // find paragraph at target position
637 int par_pos = d->scrollbarParameters_.min;
639 for (; i != int(d->par_height_.size()); ++i) {
640 par_pos += d->par_height_[i];
641 if (par_pos >= value)
645 if (par_pos < value) {
646 // It seems we didn't find the correct pit so stay on the safe side and
648 LYXERR0("scrolling position not found!");
649 scrollDocView(d->scrollbarParameters_.max, update);
653 DocIterator dit = doc_iterator_begin(&buffer_);
655 LYXERR(Debug::SCROLLING, "value = " << value << " -> scroll to pit " << i);
656 showCursor(dit, false, update);
660 // FIXME: this method is not working well.
661 void BufferView::setCursorFromScrollbar()
663 TextMetrics & tm = d->text_metrics_[&buffer_.text()];
665 int const height = 2 * defaultRowHeight();
666 int const first = height;
667 int const last = height_ - height;
669 Cursor const & oldcur = d->cursor_;
671 switch (cursorStatus(oldcur)) {
679 int const y = getPos(oldcur).y_;
680 newy = min(last, max(y, first));
684 // We reset the cursor because cursorStatus() does not
685 // work when the cursor is within mathed.
688 tm.setCursorFromCoordinates(cur, 0, newy);
690 // update the bufferview cursor and notify insets
691 // FIXME: Care about the d->cursor_ flags to redraw if needed
692 Cursor old = d->cursor_;
694 // the DEPM call in mouseSetCursor() might have destroyed the
695 // paragraph the cursor is in.
696 bool badcursor = old.fixIfBroken();
697 badcursor |= notifyCursorLeavesOrEnters(old, d->cursor_);
699 d->cursor_.fixIfBroken();
703 Change const BufferView::getCurrentChange() const
705 if (!d->cursor_.selection())
706 return Change(Change::UNCHANGED);
708 DocIterator dit = d->cursor_.selectionBegin();
709 // The selected content might have been changed (see #7685)
710 while (dit.inMathed())
711 // Find enclosing text cursor
713 return dit.paragraph().lookupChange(dit.pos());
717 // this could be used elsewhere as well?
718 // FIXME: This does not work within mathed!
719 CursorStatus BufferView::cursorStatus(DocIterator const & dit) const
721 Point const p = getPos(dit);
724 if (p.y_ > workHeight())
730 void BufferView::bookmarkEditPosition()
732 // Don't eat cpu time for each keystroke
733 if (d->cursor_.paragraph().id() == d->bookmark_edit_position_)
736 d->bookmark_edit_position_ = d->cursor_.paragraph().id();
740 void BufferView::saveBookmark(unsigned int idx)
742 // tentatively save bookmark, id and pos will be used to
743 // acturately locate a bookmark in a 'live' lyx session.
744 // pit and pos will be updated with bottom level pit/pos
746 if (!buffer_.isInternal()) {
747 theSession().bookmarks().save(
749 d->cursor_.bottom().pit(),
750 d->cursor_.bottom().pos(),
751 d->cursor_.paragraph().id(),
756 // emit message signal.
757 message(_("Save bookmark"));
762 bool BufferView::moveToPosition(pit_type bottom_pit, pos_type bottom_pos,
763 int top_id, pos_type top_pos)
765 bool success = false;
768 d->cursor_.clearSelection();
770 // if a valid par_id is given, try it first
771 // This is the case for a 'live' bookmark when unique paragraph ID
772 // is used to track bookmarks.
774 dit = buffer_.getParFromID(top_id);
776 dit.pos() = min(dit.paragraph().size(), top_pos);
777 // Some slices of the iterator may not be
778 // reachable (e.g. closed collapsable inset)
779 // so the dociterator may need to be
780 // shortened. Otherwise, setCursor may crash
781 // lyx when the cursor can not be set to these
783 size_t const n = dit.depth();
784 for (size_t i = 0; i < n; ++i)
785 if (!dit[i].inset().editable()) {
793 // if top_id == 0, or searching through top_id failed
794 // This is the case for a 'restored' bookmark when only bottom
795 // (document level) pit was saved. Because of this, bookmark
796 // restoration is inaccurate. If a bookmark was within an inset,
797 // it will be restored to the left of the outmost inset that contains
799 if (bottom_pit < int(buffer_.paragraphs().size())) {
800 dit = doc_iterator_begin(&buffer_);
802 dit.pit() = bottom_pit;
803 dit.pos() = min(bottom_pos, dit.paragraph().size());
808 // Note: only bottom (document) level pit is set.
810 // set the current font.
811 d->cursor_.setCurrentFont();
812 // Do not forget to reset the anchor (see #9912)
813 d->cursor_.resetAnchor();
814 // To center the screen on this new position we need the
815 // paragraph position which is computed at draw() time.
816 // So we need a redraw!
817 buffer_.changed(false);
818 if (needsFitCursor())
826 void BufferView::translateAndInsert(char_type c, Text * t, Cursor & cur)
828 if (d->cursor_.real_current_font.isRightToLeft()) {
829 if (d->intl_.keymap == Intl::PRIMARY)
830 d->intl_.keyMapSec();
832 if (d->intl_.keymap == Intl::SECONDARY)
833 d->intl_.keyMapPrim();
836 d->intl_.getTransManager().translateAndInsert(c, t, cur);
840 int BufferView::workWidth() const
846 void BufferView::recenter()
848 showCursor(d->cursor_, true, true);
852 void BufferView::showCursor()
854 showCursor(d->cursor_, false, true);
858 void BufferView::showCursor(DocIterator const & dit,
859 bool recenter, bool update)
861 if (scrollToCursor(dit, recenter) && update) {
862 buffer_.changed(true);
863 updateHoveredInset();
868 void BufferView::scrollToCursor()
870 if (scrollToCursor(d->cursor_, false)) {
871 buffer_.changed(true);
872 updateHoveredInset();
877 bool BufferView::scrollToCursor(DocIterator const & dit, bool recenter)
879 // We are not properly started yet, delay until resizing is
884 LYXERR(Debug::SCROLLING, "recentering!");
886 CursorSlice const & bot = dit.bottom();
887 TextMetrics & tm = d->text_metrics_[bot.text()];
889 pos_type const max_pit = pos_type(bot.text()->paragraphs().size() - 1);
890 int bot_pit = bot.pit();
891 if (bot_pit > max_pit) {
892 // FIXME: Why does this happen?
893 LYXERR0("bottom pit is greater that max pit: "
894 << bot_pit << " > " << max_pit);
898 if (bot_pit == tm.first().first - 1)
899 tm.newParMetricsUp();
900 else if (bot_pit == tm.last().first + 1)
901 tm.newParMetricsDown();
903 if (tm.contains(bot_pit)) {
904 ParagraphMetrics const & pm = tm.parMetrics(bot_pit);
905 LBUFERR(!pm.rows().empty());
906 // FIXME: smooth scrolling doesn't work in mathed.
907 CursorSlice const & cs = dit.innerTextSlice();
908 int offset = coordOffset(dit).y_;
909 int ypos = pm.position() + offset;
910 Dimension const & row_dim =
911 pm.getRow(cs.pos(), dit.boundary()).dimension();
914 scrolled = scroll(ypos - height_/2);
916 // We try to visualize the whole row, if the row height is larger than
917 // the screen height, we scroll to a heuristic value of height_ / 4.
918 // FIXME: This heuristic value should be replaced by a recursive search
919 // for a row in the inset that can be visualized completely.
920 else if (row_dim.height() > height_) {
921 if (ypos < defaultRowHeight())
922 scrolled = scroll(ypos - height_ / 4);
923 else if (ypos > height_ - defaultRowHeight())
924 scrolled = scroll(ypos - 3 * height_ / 4);
927 // If the top part of the row falls of the screen, we scroll
928 // up to align the top of the row with the top of the screen.
929 else if (ypos - row_dim.ascent() < 0 && ypos < height_) {
930 int ynew = row_dim.ascent();
931 scrolled = scrollUp(ynew - ypos);
934 // If the bottom of the row falls of the screen, we scroll down.
935 else if (ypos + row_dim.descent() > height_ && ypos > 0) {
936 int ynew = height_ - row_dim.descent();
937 scrolled = scrollDown(ypos - ynew);
940 // else, nothing to do, the cursor is already visible so we just return.
941 return scrolled != 0;
944 // fix inline completion position
945 if (d->inlineCompletionPos_.fixIfBroken())
946 d->inlineCompletionPos_ = DocIterator();
948 tm.redoParagraph(bot_pit);
949 ParagraphMetrics const & pm = tm.parMetrics(bot_pit);
950 int offset = coordOffset(dit).y_;
952 d->anchor_pit_ = bot_pit;
953 CursorSlice const & cs = dit.innerTextSlice();
954 Dimension const & row_dim =
955 pm.getRow(cs.pos(), dit.boundary()).dimension();
958 d->anchor_ypos_ = height_/2;
959 else if (d->anchor_pit_ == 0)
960 d->anchor_ypos_ = offset + pm.ascent();
961 else if (d->anchor_pit_ == max_pit)
962 d->anchor_ypos_ = height_ - offset - row_dim.descent();
963 else if (offset > height_)
964 d->anchor_ypos_ = height_ - offset - defaultRowHeight();
966 d->anchor_ypos_ = defaultRowHeight() * 2;
972 void BufferView::makeDocumentClass()
974 DocumentClassConstPtr olddc = buffer_.params().documentClassPtr();
975 buffer_.params().makeDocumentClass();
976 updateDocumentClass(olddc);
980 void BufferView::updateDocumentClass(DocumentClassConstPtr olddc)
982 message(_("Converting document to new document class..."));
984 StableDocIterator backcur(d->cursor_);
985 ErrorList & el = buffer_.errorList("Class Switch");
986 cap::switchBetweenClasses(
987 olddc, buffer_.params().documentClassPtr(),
988 static_cast<InsetText &>(buffer_.inset()), el);
990 setCursor(backcur.asDocIterator(&buffer_));
992 buffer_.errors("Class Switch");
996 /** Return the change status at cursor position, taking into account the
997 * status at each level of the document iterator (a table in a deleted
998 * footnote is deleted).
999 * When \param outer is true, the top slice is not looked at.
1001 static Change::Type lookupChangeType(DocIterator const & dit, bool outer = false)
1003 size_t const depth = dit.depth() - (outer ? 1 : 0);
1005 for (size_t i = 0 ; i < depth ; ++i) {
1006 CursorSlice const & slice = dit[i];
1007 if (!slice.inset().inMathed()
1008 && slice.pos() < slice.paragraph().size()) {
1009 Change::Type const ch = slice.paragraph().lookupChange(slice.pos()).type;
1010 if (ch != Change::UNCHANGED)
1014 return Change::UNCHANGED;
1018 bool BufferView::getStatus(FuncRequest const & cmd, FuncStatus & flag)
1020 FuncCode const act = cmd.action();
1022 // Can we use a readonly buffer?
1023 if (buffer_.isReadonly()
1024 && !lyxaction.funcHasFlag(act, LyXAction::ReadOnly)
1025 && !lyxaction.funcHasFlag(act, LyXAction::NoBuffer)) {
1026 flag.message(from_utf8(N_("Document is read-only")));
1027 flag.setEnabled(false);
1031 // Are we in a DELETED change-tracking region?
1032 if (lookupChangeType(d->cursor_, true) == Change::DELETED
1033 && !lyxaction.funcHasFlag(act, LyXAction::ReadOnly)
1034 && !lyxaction.funcHasFlag(act, LyXAction::NoBuffer)) {
1035 flag.message(from_utf8(N_("This portion of the document is deleted.")));
1036 flag.setEnabled(false);
1040 Cursor & cur = d->cursor_;
1042 if (cur.getStatus(cmd, flag))
1047 // FIXME: This is a bit problematic because we don't check if this is
1048 // a document BufferView or not for these LFUNs. We probably have to
1049 // dispatch both to currentBufferView() and, if that fails,
1050 // to documentBufferView(); same as we do now for current Buffer and
1051 // document Buffer. Ideally those LFUN should go to Buffer as they
1052 // operate on the full Buffer and the cursor is only needed either for
1053 // an Undo record or to restore a cursor position. But we don't know
1054 // how to do that inside Buffer of course.
1055 case LFUN_BUFFER_PARAMS_APPLY:
1056 case LFUN_LAYOUT_MODULES_CLEAR:
1057 case LFUN_LAYOUT_MODULE_ADD:
1058 case LFUN_LAYOUT_RELOAD:
1059 case LFUN_TEXTCLASS_APPLY:
1060 case LFUN_TEXTCLASS_LOAD:
1061 flag.setEnabled(!buffer_.isReadonly());
1065 // We do not use the LyXAction flag for readonly because Undo sets the
1066 // buffer clean/dirty status by itself.
1067 flag.setEnabled(!buffer_.isReadonly() && buffer_.undo().hasUndoStack());
1070 // We do not use the LyXAction flag for readonly because Redo sets the
1071 // buffer clean/dirty status by itself.
1072 flag.setEnabled(!buffer_.isReadonly() && buffer_.undo().hasRedoStack());
1074 case LFUN_FILE_INSERT_PLAINTEXT_PARA:
1075 case LFUN_FILE_INSERT_PLAINTEXT: {
1076 docstring const fname = cmd.argument();
1077 if (!FileName::isAbsolute(to_utf8(fname))) {
1078 flag.message(_("Absolute filename expected."));
1081 flag.setEnabled(cur.inTexted());
1084 case LFUN_FILE_INSERT:
1085 case LFUN_BOOKMARK_SAVE:
1086 // FIXME: Actually, these LFUNS should be moved to Text
1087 flag.setEnabled(cur.inTexted());
1090 case LFUN_FONT_STATE:
1091 case LFUN_LABEL_INSERT:
1092 case LFUN_INFO_INSERT:
1093 case LFUN_PARAGRAPH_GOTO:
1094 case LFUN_NOTE_NEXT:
1095 case LFUN_REFERENCE_NEXT:
1096 case LFUN_WORD_FIND:
1097 case LFUN_WORD_FIND_FORWARD:
1098 case LFUN_WORD_FIND_BACKWARD:
1099 case LFUN_WORD_REPLACE:
1102 case LFUN_MARK_TOGGLE:
1103 case LFUN_SCREEN_RECENTER:
1104 case LFUN_SCREEN_SHOW_CURSOR:
1105 case LFUN_BIBTEX_DATABASE_ADD:
1106 case LFUN_BIBTEX_DATABASE_DEL:
1107 case LFUN_STATISTICS:
1108 case LFUN_KEYMAP_OFF:
1109 case LFUN_KEYMAP_PRIMARY:
1110 case LFUN_KEYMAP_SECONDARY:
1111 case LFUN_KEYMAP_TOGGLE:
1112 case LFUN_INSET_SELECT_ALL:
1113 flag.setEnabled(true);
1116 case LFUN_WORD_FINDADV: {
1117 FindAndReplaceOptions opt;
1118 istringstream iss(to_utf8(cmd.argument()));
1120 flag.setEnabled(opt.repl_buf_name.empty()
1121 || !buffer_.isReadonly());
1125 case LFUN_LABEL_GOTO:
1126 flag.setEnabled(!cmd.argument().empty()
1127 || getInsetByCode<InsetRef>(cur, REF_CODE));
1130 case LFUN_CHANGES_MERGE:
1131 case LFUN_CHANGE_NEXT:
1132 case LFUN_CHANGE_PREVIOUS:
1133 case LFUN_ALL_CHANGES_ACCEPT:
1134 case LFUN_ALL_CHANGES_REJECT:
1135 // TODO: context-sensitive enabling of LFUNs
1136 // In principle, these command should only be enabled if there
1137 // is a change in the document. However, without proper
1138 // optimizations, this will inevitably result in poor performance.
1139 flag.setEnabled(true);
1142 case LFUN_SCREEN_UP:
1143 case LFUN_SCREEN_DOWN:
1145 case LFUN_SCREEN_UP_SELECT:
1146 case LFUN_SCREEN_DOWN_SELECT:
1147 case LFUN_INSET_FORALL:
1148 flag.setEnabled(true);
1151 case LFUN_LAYOUT_TABULAR:
1152 flag.setEnabled(cur.innerInsetOfType(TABULAR_CODE));
1156 flag.setEnabled(!cur.inset().forcePlainLayout(cur.idx()));
1159 case LFUN_LAYOUT_PARAGRAPH:
1160 flag.setEnabled(cur.inset().allowParagraphCustomization(cur.idx()));
1163 case LFUN_BRANCH_ADD_INSERT:
1164 flag.setEnabled(!(cur.inTexted() && cur.paragraph().isPassThru()));
1167 case LFUN_DIALOG_SHOW_NEW_INSET:
1168 // FIXME: this is wrong, but I do not understand the
1170 if (cur.inset().lyxCode() == CAPTION_CODE)
1171 return cur.inset().getStatus(cur, cmd, flag);
1172 // FIXME we should consider passthru paragraphs too.
1173 flag.setEnabled(!(cur.inTexted() && cur.paragraph().isPassThru()));
1176 case LFUN_CITATION_INSERT: {
1177 FuncRequest fr(LFUN_INSET_INSERT, "citation");
1178 // FIXME: This could turn in a recursive hell.
1179 // Shouldn't we use Buffer::getStatus() instead?
1180 flag.setEnabled(lyx::getStatus(fr).enabled());
1183 case LFUN_INSET_APPLY: {
1184 string const name = cmd.getArg(0);
1185 Inset * inset = editedInset(name);
1187 FuncRequest fr(LFUN_INSET_MODIFY, cmd.argument());
1188 if (!inset->getStatus(cur, fr, flag)) {
1189 // Every inset is supposed to handle this
1190 LASSERT(false, break);
1193 FuncRequest fr(LFUN_INSET_INSERT, cmd.argument());
1194 flag = lyx::getStatus(fr);
1207 Inset * BufferView::editedInset(string const & name) const
1209 map<string, Inset *>::const_iterator it = d->edited_insets_.find(name);
1210 return it == d->edited_insets_.end() ? 0 : it->second;
1214 void BufferView::editInset(string const & name, Inset * inset)
1216 d->edited_insets_[name] = inset;
1220 void BufferView::dispatch(FuncRequest const & cmd, DispatchResult & dr)
1222 LYXERR(Debug::ACTION, "BufferView::dispatch: cmd: " << cmd);
1224 string const argument = to_utf8(cmd.argument());
1225 Cursor & cur = d->cursor_;
1228 // Don't dispatch function that does not apply to internal buffers.
1229 if (buffer_.isInternal()
1230 && lyxaction.funcHasFlag(cmd.action(), LyXAction::NoInternal))
1233 // We'll set this back to false if need be.
1234 bool dispatched = true;
1235 buffer_.undo().beginUndoGroup();
1237 FuncCode const act = cmd.action();
1240 case LFUN_BUFFER_PARAMS_APPLY: {
1241 DocumentClassConstPtr olddc = buffer_.params().documentClassPtr();
1242 cur.recordUndoBufferParams();
1243 istringstream ss(to_utf8(cmd.argument()));
1246 int const unknown_tokens = buffer_.readHeader(lex);
1247 if (unknown_tokens != 0) {
1248 LYXERR0("Warning in LFUN_BUFFER_PARAMS_APPLY!\n"
1249 << unknown_tokens << " unknown token"
1250 << (unknown_tokens == 1 ? "" : "s"));
1252 updateDocumentClass(olddc);
1254 // We are most certainly here because of a change in the document
1255 // It is then better to make sure that all dialogs are in sync with
1256 // current document settings.
1257 dr.screenUpdate(Update::Force | Update::FitCursor);
1258 dr.forceBufferUpdate();
1262 case LFUN_LAYOUT_MODULES_CLEAR: {
1263 // FIXME: this modifies the document in cap::switchBetweenClasses
1264 // without calling recordUndo. Fix this before using
1265 // recordUndoBufferParams().
1266 cur.recordUndoFullBuffer();
1267 buffer_.params().clearLayoutModules();
1268 makeDocumentClass();
1269 dr.screenUpdate(Update::Force);
1270 dr.forceBufferUpdate();
1274 case LFUN_LAYOUT_MODULE_ADD: {
1275 BufferParams const & params = buffer_.params();
1276 if (!params.layoutModuleCanBeAdded(argument)) {
1277 LYXERR0("Module `" << argument <<
1278 "' cannot be added due to failed requirements or "
1279 "conflicts with installed modules.");
1282 // FIXME: this modifies the document in cap::switchBetweenClasses
1283 // without calling recordUndo. Fix this before using
1284 // recordUndoBufferParams().
1285 cur.recordUndoFullBuffer();
1286 buffer_.params().addLayoutModule(argument);
1287 makeDocumentClass();
1288 dr.screenUpdate(Update::Force);
1289 dr.forceBufferUpdate();
1293 case LFUN_TEXTCLASS_APPLY: {
1294 // since this shortcircuits, the second call is made only if
1296 bool const success =
1297 LayoutFileList::get().load(argument, buffer_.temppath()) ||
1298 LayoutFileList::get().load(argument, buffer_.filePath());
1300 docstring s = bformat(_("The document class `%1$s' "
1301 "could not be loaded."), from_utf8(argument));
1302 frontend::Alert::error(_("Could not load class"), s);
1306 LayoutFile const * old_layout = buffer_.params().baseClass();
1307 LayoutFile const * new_layout = &(LayoutFileList::get()[argument]);
1309 if (old_layout == new_layout)
1313 // Save the old, possibly modular, layout for use in conversion.
1314 // FIXME: this modifies the document in cap::switchBetweenClasses
1315 // without calling recordUndo. Fix this before using
1316 // recordUndoBufferParams().
1317 cur.recordUndoFullBuffer();
1318 buffer_.params().setBaseClass(argument);
1319 makeDocumentClass();
1320 dr.screenUpdate(Update::Force);
1321 dr.forceBufferUpdate();
1325 case LFUN_TEXTCLASS_LOAD: {
1326 // since this shortcircuits, the second call is made only if
1328 bool const success =
1329 LayoutFileList::get().load(argument, buffer_.temppath()) ||
1330 LayoutFileList::get().load(argument, buffer_.filePath());
1332 docstring s = bformat(_("The document class `%1$s' "
1333 "could not be loaded."), from_utf8(argument));
1334 frontend::Alert::error(_("Could not load class"), s);
1339 case LFUN_LAYOUT_RELOAD: {
1340 LayoutFileIndex bc = buffer_.params().baseClassID();
1341 LayoutFileList::get().reset(bc);
1342 buffer_.params().setBaseClass(bc);
1343 makeDocumentClass();
1344 dr.screenUpdate(Update::Force);
1345 dr.forceBufferUpdate();
1350 dr.setMessage(_("Undo"));
1351 cur.clearSelection();
1352 if (!cur.textUndo())
1353 dr.setMessage(_("No further undo information"));
1355 dr.screenUpdate(Update::Force | Update::FitCursor);
1356 dr.forceBufferUpdate();
1360 dr.setMessage(_("Redo"));
1361 cur.clearSelection();
1362 if (!cur.textRedo())
1363 dr.setMessage(_("No further redo information"));
1365 dr.screenUpdate(Update::Force | Update::FitCursor);
1366 dr.forceBufferUpdate();
1369 case LFUN_FONT_STATE:
1370 dr.setMessage(cur.currentState());
1373 case LFUN_BOOKMARK_SAVE:
1374 saveBookmark(convert<unsigned int>(to_utf8(cmd.argument())));
1377 case LFUN_LABEL_GOTO: {
1378 docstring label = cmd.argument();
1379 if (label.empty()) {
1381 getInsetByCode<InsetRef>(cur, REF_CODE);
1383 label = inset->getParam("reference");
1384 // persistent=false: use temp_bookmark
1388 if (!label.empty()) {
1390 // at the moment, this is redundant, since gotoLabel will
1391 // eventually call LFUN_PARAGRAPH_GOTO, but it seems best
1393 dr.screenUpdate(Update::Force | Update::FitCursor);
1398 case LFUN_PARAGRAPH_GOTO: {
1399 int const id = convert<int>(cmd.getArg(0));
1400 int const pos = convert<int>(cmd.getArg(1));
1402 for (Buffer * b = &buffer_; i == 0 || b != &buffer_;
1403 b = theBufferList().next(b)) {
1406 cur.setCursor(b->getParFromID(id));
1408 LYXERR(Debug::INFO, "No matching paragraph found! [" << id << "].");
1412 LYXERR(Debug::INFO, "Paragraph " << cur.paragraph().id()
1413 << " found in buffer `"
1414 << b->absFileName() << "'.");
1416 if (b == &buffer_) {
1419 mouseSetCursor(cur);
1420 dr.screenUpdate(Update::Force | Update::FitCursor);
1422 // Switch to other buffer view and resend cmd
1423 lyx::dispatch(FuncRequest(
1424 LFUN_BUFFER_SWITCH, b->absFileName()));
1432 case LFUN_NOTE_NEXT:
1433 gotoInset(this, NOTE_CODE, false);
1436 case LFUN_REFERENCE_NEXT: {
1437 vector<InsetCode> tmp;
1438 tmp.push_back(LABEL_CODE);
1439 tmp.push_back(REF_CODE);
1440 gotoInset(this, tmp, true);
1444 case LFUN_CHANGE_NEXT:
1445 findNextChange(this);
1446 // FIXME: Move this LFUN to Buffer so that we don't have to do this:
1447 dr.screenUpdate(Update::Force | Update::FitCursor);
1450 case LFUN_CHANGE_PREVIOUS:
1451 findPreviousChange(this);
1452 // FIXME: Move this LFUN to Buffer so that we don't have to do this:
1453 dr.screenUpdate(Update::Force | Update::FitCursor);
1456 case LFUN_CHANGES_MERGE:
1457 if (findNextChange(this) || findPreviousChange(this)) {
1458 dr.screenUpdate(Update::Force | Update::FitCursor);
1459 dr.forceBufferUpdate();
1460 showDialog("changes");
1464 case LFUN_ALL_CHANGES_ACCEPT:
1465 // select complete document
1467 cur.selHandle(true);
1468 buffer_.text().cursorBottom(cur);
1469 // accept everything in a single step to support atomic undo
1470 buffer_.text().acceptOrRejectChanges(cur, Text::ACCEPT);
1472 // FIXME: Move this LFUN to Buffer so that we don't have to do this:
1473 dr.screenUpdate(Update::Force | Update::FitCursor);
1474 dr.forceBufferUpdate();
1477 case LFUN_ALL_CHANGES_REJECT:
1478 // select complete document
1480 cur.selHandle(true);
1481 buffer_.text().cursorBottom(cur);
1482 // reject everything in a single step to support atomic undo
1483 // Note: reject does not work recursively; the user may have to repeat the operation
1484 buffer_.text().acceptOrRejectChanges(cur, Text::REJECT);
1486 // FIXME: Move this LFUN to Buffer so that we don't have to do this:
1487 dr.screenUpdate(Update::Force | Update::FitCursor);
1488 dr.forceBufferUpdate();
1491 case LFUN_WORD_FIND_FORWARD:
1492 case LFUN_WORD_FIND_BACKWARD: {
1494 // Would it maybe be better if this variable were view specific anyway?
1495 static docstring last_search;
1496 docstring searched_string;
1498 if (!cmd.argument().empty()) {
1499 last_search = cmd.argument();
1500 searched_string = cmd.argument();
1502 searched_string = last_search;
1505 if (searched_string.empty())
1508 bool const fw = act == LFUN_WORD_FIND_FORWARD;
1509 docstring const data =
1510 find2string(searched_string, true, false, fw);
1511 bool found = lyxfind(this, FuncRequest(LFUN_WORD_FIND, data));
1513 dr.screenUpdate(Update::Force | Update::FitCursor);
1523 case LFUN_WORD_FIND: {
1524 FuncRequest req = cmd;
1525 if (cmd.argument().empty() && !d->search_request_cache_.argument().empty())
1526 req = d->search_request_cache_;
1527 if (req.argument().empty()) {
1528 lyx::dispatch(FuncRequest(LFUN_DIALOG_SHOW, "findreplace"));
1531 if (lyxfind(this, req)) {
1532 dr.screenUpdate(Update::Force | Update::FitCursor);
1539 d->search_request_cache_ = req;
1543 case LFUN_WORD_REPLACE: {
1544 bool has_deleted = false;
1545 if (cur.selection()) {
1546 DocIterator beg = cur.selectionBegin();
1547 DocIterator end = cur.selectionEnd();
1548 if (beg.pit() == end.pit()) {
1549 for (pos_type p = beg.pos() ; p < end.pos() ; ++p) {
1550 if (!cur.inMathed() && cur.paragraph().isDeleted(p)) {
1557 if (lyxreplace(this, cmd, has_deleted)) {
1558 dr.forceBufferUpdate();
1559 dr.screenUpdate(Update::Force | Update::FitCursor);
1569 case LFUN_WORD_FINDADV: {
1570 FindAndReplaceOptions opt;
1571 istringstream iss(to_utf8(cmd.argument()));
1573 if (findAdv(this, opt)) {
1574 dr.screenUpdate(Update::Force | Update::FitCursor);
1585 cur.clearSelection();
1586 dr.setMessage(from_utf8(N_("Mark off")));
1590 cur.clearSelection();
1592 dr.setMessage(from_utf8(N_("Mark on")));
1595 case LFUN_MARK_TOGGLE:
1596 cur.setSelection(false);
1599 dr.setMessage(from_utf8(N_("Mark removed")));
1602 dr.setMessage(from_utf8(N_("Mark set")));
1607 case LFUN_SCREEN_SHOW_CURSOR:
1611 case LFUN_SCREEN_RECENTER:
1615 case LFUN_BIBTEX_DATABASE_ADD: {
1616 Cursor tmpcur = cur;
1617 findInset(tmpcur, BIBTEX_CODE, false);
1618 InsetBibtex * inset = getInsetByCode<InsetBibtex>(tmpcur,
1621 if (inset->addDatabase(cmd.argument())) {
1622 buffer_.invalidateBibfileCache();
1623 dr.forceBufferUpdate();
1629 case LFUN_BIBTEX_DATABASE_DEL: {
1630 Cursor tmpcur = cur;
1631 findInset(tmpcur, BIBTEX_CODE, false);
1632 InsetBibtex * inset = getInsetByCode<InsetBibtex>(tmpcur,
1635 if (inset->delDatabase(cmd.argument())) {
1636 buffer_.invalidateBibfileCache();
1637 dr.forceBufferUpdate();
1643 case LFUN_STATISTICS: {
1644 DocIterator from, to;
1645 if (cur.selection()) {
1646 from = cur.selectionBegin();
1647 to = cur.selectionEnd();
1649 from = doc_iterator_begin(&buffer_);
1650 to = doc_iterator_end(&buffer_);
1652 buffer_.updateStatistics(from, to);
1653 int const words = buffer_.wordCount();
1654 int const chars = buffer_.charCount(false);
1655 int const chars_blanks = buffer_.charCount(true);
1657 if (cur.selection())
1658 message = _("Statistics for the selection:");
1660 message = _("Statistics for the document:");
1663 message += bformat(_("%1$d words"), words);
1665 message += _("One word");
1667 if (chars_blanks != 1)
1668 message += bformat(_("%1$d characters (including blanks)"),
1671 message += _("One character (including blanks)");
1674 message += bformat(_("%1$d characters (excluding blanks)"),
1677 message += _("One character (excluding blanks)");
1679 Alert::information(_("Statistics"), message);
1683 case LFUN_SCREEN_UP:
1684 case LFUN_SCREEN_DOWN: {
1685 Point p = getPos(cur);
1686 // This code has been commented out to enable to scroll down a
1687 // document, even if there are large insets in it (see bug #5465).
1688 /*if (p.y_ < 0 || p.y_ > height_) {
1689 // The cursor is off-screen so recenter before proceeding.
1693 int const scrolled = scroll(act == LFUN_SCREEN_UP
1694 ? -height_ : height_);
1695 if (act == LFUN_SCREEN_UP && scrolled > -height_)
1697 if (act == LFUN_SCREEN_DOWN && scrolled < height_)
1698 p = Point(width_, height_);
1699 bool const in_texted = cur.inTexted();
1700 cur.setCursor(doc_iterator_begin(cur.buffer()));
1701 cur.selHandle(false);
1702 buffer_.changed(true);
1703 updateHoveredInset();
1705 d->text_metrics_[&buffer_.text()].editXY(cur, p.x_, p.y_,
1706 true, act == LFUN_SCREEN_UP);
1707 //FIXME: what to do with cur.x_target()?
1708 bool update = in_texted && cur.bv().checkDepm(cur, old);
1711 if (update || cur.mark())
1712 dr.screenUpdate(Update::Force | Update::FitCursor);
1714 dr.forceBufferUpdate();
1719 string const scroll_type = cmd.getArg(0);
1720 int scroll_step = 0;
1721 if (scroll_type == "line")
1722 scroll_step = d->scrollbarParameters_.single_step;
1723 else if (scroll_type == "page")
1724 scroll_step = d->scrollbarParameters_.page_step;
1727 string const scroll_quantity = cmd.getArg(1);
1728 if (scroll_quantity == "up")
1729 scrollUp(scroll_step);
1730 else if (scroll_quantity == "down")
1731 scrollDown(scroll_step);
1733 int const scroll_value = convert<int>(scroll_quantity);
1735 scroll(scroll_step * scroll_value);
1737 buffer_.changed(true);
1738 updateHoveredInset();
1739 dr.forceBufferUpdate();
1743 case LFUN_SCREEN_UP_SELECT: {
1744 // FIXME: why is the algorithm different from LFUN_SCREEN_UP?
1745 cur.selHandle(true);
1746 if (isTopScreen()) {
1747 lyx::dispatch(FuncRequest(LFUN_BUFFER_BEGIN_SELECT));
1751 int y = getPos(cur).y_;
1752 int const ymin = y - height_ + defaultRowHeight();
1753 while (y > ymin && cur.up())
1757 dr.screenUpdate(Update::SinglePar | Update::FitCursor);
1761 case LFUN_SCREEN_DOWN_SELECT: {
1762 // FIXME: why is the algorithm different from LFUN_SCREEN_DOWN?
1763 cur.selHandle(true);
1764 if (isBottomScreen()) {
1765 lyx::dispatch(FuncRequest(LFUN_BUFFER_END_SELECT));
1769 int y = getPos(cur).y_;
1770 int const ymax = y + height_ - defaultRowHeight();
1771 while (y < ymax && cur.down())
1775 dr.screenUpdate(Update::SinglePar | Update::FitCursor);
1780 case LFUN_INSET_SELECT_ALL:
1782 && cur.selBegin().at_begin()
1783 && cur.selEnd().at_end()) {
1784 // All the contents of the inset if selected.
1785 // Select the inset from outside.
1788 cur.setSelection(true);
1790 } else if (cur.selBegin().idx() != cur.selEnd().idx()
1792 && cur.selBegin().at_cell_begin()
1793 && cur.selEnd().at_cell_end())) {
1794 // At least one complete cell is selected.
1799 cur.setSelection(true);
1800 cur.idx() = cur.lastidx();
1801 cur.pos() = cur.lastpos();
1803 // select current cell
1807 cur.setSelection(true);
1808 cur.pit() = cur.lastpit();
1809 cur.pos() = cur.lastpos();
1811 cur.setCurrentFont();
1812 dr.screenUpdate(Update::Force);
1816 // This would be in Buffer class if only Cursor did not
1817 // require a bufferview
1818 case LFUN_INSET_FORALL: {
1819 docstring const name = from_utf8(cmd.getArg(0));
1820 string const commandstr = cmd.getLongArg(1);
1821 FuncRequest const fr = lyxaction.lookupFunc(commandstr);
1823 // an arbitrary number to limit number of iterations
1824 const int max_iter = 100000;
1826 Cursor & cur = d->cursor_;
1827 Cursor const savecur = cur;
1829 if (!cur.nextInset())
1831 cur.beginUndoGroup();
1832 while(cur && iterations < max_iter) {
1833 Inset * const ins = cur.nextInset();
1836 docstring insname = ins->layoutName();
1837 while (!insname.empty()) {
1838 if (insname == name || name == from_utf8("*")) {
1840 lyx::dispatch(fr, dr);
1844 size_t const i = insname.rfind(':');
1845 if (i == string::npos)
1847 insname = insname.substr(0, i);
1849 // if we did not delete the inset, skip it
1850 if (!cur.nextInset() || cur.nextInset() == ins)
1855 /** This is a dummy undo record only to remember the cursor
1856 * that has just been set; this will be used on a redo action
1857 * (see ticket #10097)
1859 * FIXME: a better fix would be to have a way to set the
1860 * cursor value directly, but I am not sure it is worth it.
1864 dr.screenUpdate(Update::Force);
1865 dr.forceBufferUpdate();
1867 if (iterations >= max_iter) {
1869 dr.setMessage(bformat(_("`inset-forall' interrupted because number of actions is larger than %1$d"), max_iter));
1871 dr.setMessage(bformat(_("Applied \"%1$s\" to %2$d insets"), from_utf8(commandstr), iterations));
1876 case LFUN_BRANCH_ADD_INSERT: {
1877 docstring branch_name = from_utf8(cmd.getArg(0));
1878 if (branch_name.empty())
1879 if (!Alert::askForText(branch_name, _("Branch name")) ||
1880 branch_name.empty())
1883 DispatchResult drtmp;
1884 buffer_.dispatch(FuncRequest(LFUN_BRANCH_ADD, branch_name), drtmp);
1885 if (drtmp.error()) {
1886 Alert::warning(_("Branch already exists"), drtmp.message());
1889 BranchList & branch_list = buffer_.params().branchlist();
1890 vector<docstring> const branches =
1891 getVectorFromString(branch_name, branch_list.separator());
1892 for (vector<docstring>::const_iterator it = branches.begin();
1893 it != branches.end(); ++it) {
1895 lyx::dispatch(FuncRequest(LFUN_BRANCH_INSERT, branch_name));
1900 case LFUN_KEYMAP_OFF:
1901 getIntl().keyMapOn(false);
1904 case LFUN_KEYMAP_PRIMARY:
1905 getIntl().keyMapPrim();
1908 case LFUN_KEYMAP_SECONDARY:
1909 getIntl().keyMapSec();
1912 case LFUN_KEYMAP_TOGGLE:
1913 getIntl().toggleKeyMap();
1916 case LFUN_DIALOG_SHOW_NEW_INSET: {
1917 string const name = cmd.getArg(0);
1918 string data = trim(to_utf8(cmd.argument()).substr(name.size()));
1919 if (decodeInsetParam(name, data, buffer_))
1920 lyx::dispatch(FuncRequest(LFUN_DIALOG_SHOW, name + " " + data));
1922 lyxerr << "Inset type '" << name <<
1923 "' not recognized in LFUN_DIALOG_SHOW_NEW_INSET" << endl;
1927 case LFUN_CITATION_INSERT: {
1928 if (argument.empty()) {
1929 lyx::dispatch(FuncRequest(LFUN_DIALOG_SHOW_NEW_INSET, "citation"));
1932 // we can have one optional argument, delimited by '|'
1933 // citation-insert <key>|<text_before>
1934 // this should be enhanced to also support text_after
1935 // and citation style
1936 string arg = argument;
1938 if (contains(argument, "|")) {
1939 arg = token(argument, '|', 0);
1940 opt1 = token(argument, '|', 1);
1943 // if our cursor is directly in front of or behind a citation inset,
1944 // we will instead add the new key to it.
1945 Inset * inset = cur.nextInset();
1946 if (!inset || inset->lyxCode() != CITE_CODE)
1947 inset = cur.prevInset();
1948 if (inset && inset->lyxCode() == CITE_CODE) {
1949 InsetCitation * icite = static_cast<InsetCitation *>(inset);
1950 if (icite->addKey(arg)) {
1951 dr.forceBufferUpdate();
1952 dr.screenUpdate(Update::FitCursor | Update::SinglePar);
1954 LYXERR0("Discarding optional argument to citation-insert.");
1959 InsetCommandParams icp(CITE_CODE);
1960 icp["key"] = from_utf8(arg);
1962 icp["before"] = from_utf8(opt1);
1963 string icstr = InsetCommand::params2string(icp);
1964 FuncRequest fr(LFUN_INSET_INSERT, icstr);
1969 case LFUN_INSET_APPLY: {
1970 string const name = cmd.getArg(0);
1971 Inset * inset = editedInset(name);
1973 FuncRequest fr(LFUN_INSET_INSERT, cmd.argument());
1977 // put cursor in front of inset.
1978 if (!setCursorFromInset(inset)) {
1979 LASSERT(false, break);
1982 FuncRequest fr(LFUN_INSET_MODIFY, cmd.argument());
1983 inset->dispatch(cur, fr);
1984 dr.screenUpdate(cur.result().screenUpdate());
1985 if (cur.result().needBufferUpdate())
1986 dr.forceBufferUpdate();
1991 // The change of language of buffer belongs to the Buffer class.
1992 // We have to do it here because we need a cursor for Undo.
1993 // When Undo::recordUndoBufferParams() is implemented someday
1994 // LFUN_BUFFER_LANGUAGE should be handled by the Buffer class.
1995 case LFUN_BUFFER_LANGUAGE: {
1996 Language const * oldL = buffer_.params().language;
1997 Language const * newL = languages.getLanguage(argument);
1998 if (!newL || oldL == newL)
2000 if (oldL->rightToLeft() == newL->rightToLeft()) {
2001 cur.recordUndoFullBuffer();
2002 buffer_.changeLanguage(oldL, newL);
2003 cur.setCurrentFont();
2004 dr.forceBufferUpdate();
2009 case LFUN_FILE_INSERT_PLAINTEXT_PARA:
2010 case LFUN_FILE_INSERT_PLAINTEXT: {
2011 bool const as_paragraph = (act == LFUN_FILE_INSERT_PLAINTEXT_PARA);
2012 string const fname = to_utf8(cmd.argument());
2013 if (!FileName::isAbsolute(fname))
2014 dr.setMessage(_("Absolute filename expected."));
2016 insertPlaintextFile(FileName(fname), as_paragraph);
2021 // OK, so try the Buffer itself...
2022 buffer_.dispatch(cmd, dr);
2023 dispatched = dr.dispatched();
2027 buffer_.undo().endUndoGroup();
2028 dr.dispatched(dispatched);
2030 // NOTE: The code below is copied from Cursor::dispatch. If you
2031 // need to modify this, please update the other one too.
2033 // notify insets we just entered/left
2034 if (cursor() != old) {
2035 old.beginUndoGroup();
2037 bool badcursor = notifyCursorLeavesOrEnters(old, cursor());
2039 cursor().fixIfBroken();
2040 resetInlineCompletionPos();
2047 docstring const BufferView::requestSelection()
2049 Cursor & cur = d->cursor_;
2051 LYXERR(Debug::SELECTION, "requestSelection: cur.selection: " << cur.selection());
2052 if (!cur.selection()) {
2053 d->xsel_cache_.set = false;
2057 LYXERR(Debug::SELECTION, "requestSelection: xsel_cache.set: " << d->xsel_cache_.set);
2058 if (!d->xsel_cache_.set ||
2059 cur.top() != d->xsel_cache_.cursor ||
2060 cur.realAnchor().top() != d->xsel_cache_.anchor)
2062 d->xsel_cache_.cursor = cur.top();
2063 d->xsel_cache_.anchor = cur.realAnchor().top();
2064 d->xsel_cache_.set = cur.selection();
2065 return cur.selectionAsString(false);
2071 void BufferView::clearSelection()
2073 d->cursor_.clearSelection();
2074 // Clear the selection buffer. Otherwise a subsequent
2075 // middle-mouse-button paste would use the selection buffer,
2076 // not the more current external selection.
2077 cap::clearSelection();
2078 d->xsel_cache_.set = false;
2079 // The buffer did not really change, but this causes the
2080 // redraw we need because we cleared the selection above.
2081 buffer_.changed(false);
2085 void BufferView::resize(int width, int height)
2087 // Update from work area
2091 // Clear the paragraph height cache.
2092 d->par_height_.clear();
2093 // Redo the metrics.
2098 Inset const * BufferView::getCoveringInset(Text const & text,
2101 TextMetrics & tm = d->text_metrics_[&text];
2102 Inset * inset = tm.checkInsetHit(x, y);
2106 if (!inset->descendable(*this))
2107 // No need to go further down if the inset is not
2111 size_t cell_number = inset->nargs();
2112 // Check all the inner cell.
2113 for (size_t i = 0; i != cell_number; ++i) {
2114 Text const * inner_text = inset->getText(i);
2117 Inset const * inset_deeper =
2118 getCoveringInset(*inner_text, x, y);
2120 return inset_deeper;
2128 void BufferView::updateHoveredInset() const
2130 // Get inset under mouse, if there is one.
2131 int const x = d->mouse_position_cache_.x_;
2132 int const y = d->mouse_position_cache_.y_;
2133 Inset const * covering_inset = getCoveringInset(buffer_.text(), x, y);
2135 d->clickable_inset_ = covering_inset && covering_inset->clickable(*this, x, y);
2137 if (covering_inset == d->last_inset_)
2138 // Same inset, no need to do anything...
2141 bool need_redraw = false;
2142 if (d->last_inset_) {
2143 // Remove the hint on the last hovered inset (if any).
2144 need_redraw |= d->last_inset_->setMouseHover(this, false);
2148 if (covering_inset && covering_inset->setMouseHover(this, true)) {
2150 // Only the insets that accept the hover state, do
2151 // clear the last_inset_, so only set the last_inset_
2152 // member if the hovered setting is accepted.
2153 d->last_inset_ = covering_inset;
2157 LYXERR(Debug::PAINTING, "Mouse hover detected at: ("
2158 << d->mouse_position_cache_.x_ << ", "
2159 << d->mouse_position_cache_.y_ << ")");
2161 d->update_strategy_ = DecorationUpdate;
2163 // This event (moving without mouse click) is not passed further.
2164 // This should be changed if it is further utilized.
2165 buffer_.changed(false);
2170 void BufferView::clearLastInset(Inset * inset) const
2172 if (d->last_inset_ != inset) {
2173 LYXERR0("Wrong last_inset!");
2180 void BufferView::mouseEventDispatch(FuncRequest const & cmd0)
2182 //lyxerr << "[ cmd0 " << cmd0 << "]" << endl;
2184 // This is only called for mouse related events including
2185 // LFUN_FILE_OPEN generated by drag-and-drop.
2186 FuncRequest cmd = cmd0;
2188 Cursor old = cursor();
2190 cur.push(buffer_.inset());
2191 cur.setSelection(d->cursor_.selection());
2193 // Either the inset under the cursor or the
2194 // surrounding Text will handle this event.
2196 // make sure we stay within the screen...
2197 cmd.set_y(min(max(cmd.y(), -1), height_));
2199 d->mouse_position_cache_.x_ = cmd.x();
2200 d->mouse_position_cache_.y_ = cmd.y();
2202 if (cmd.action() == LFUN_MOUSE_MOTION && cmd.button() == mouse_button::none) {
2203 updateHoveredInset();
2207 // Build temporary cursor.
2208 Inset * inset = d->text_metrics_[&buffer_.text()].editXY(cur, cmd.x(), cmd.y());
2210 // If inset is not editable, cur.pos() might point behind the
2211 // inset (depending on cmd.x(), cmd.y()). This is needed for
2212 // editing to fix bug 9628, but e.g. the context menu needs a
2213 // cursor in front of the inset.
2214 if ((inset->hasSettings() || !inset->contextMenuName().empty()
2215 || inset->lyxCode() == SEPARATOR_CODE) &&
2216 cur.nextInset() != inset && cur.prevInset() == inset)
2218 } else if (cur.inTexted() && cur.pos()
2219 && cur.paragraph().isEnvSeparator(cur.pos() - 1)) {
2220 // Always place cursor in front of a separator inset.
2224 // Put anchor at the same position.
2227 cur.beginUndoGroup();
2229 // Try to dispatch to an non-editable inset near this position
2230 // via the temp cursor. If the inset wishes to change the real
2231 // cursor it has to do so explicitly by using
2232 // cur.bv().cursor() = cur; (or similar)
2234 inset->dispatch(cur, cmd);
2236 // Now dispatch to the temporary cursor. If the real cursor should
2237 // be modified, the inset's dispatch has to do so explicitly.
2238 if (!inset || !cur.result().dispatched())
2241 // Notify left insets
2243 bool badcursor = old.fixIfBroken() | cur.fixIfBroken();
2244 badcursor |= notifyCursorLeavesOrEnters(old, cur);
2246 cursor().fixIfBroken();
2251 // Do we have a selection?
2252 theSelection().haveSelection(cursor().selection());
2254 if (cur.needBufferUpdate()) {
2255 cur.clearBufferUpdate();
2256 buffer().updateBuffer();
2259 // If the command has been dispatched,
2260 if (cur.result().dispatched() || cur.result().screenUpdate())
2261 processUpdateFlags(cur.result().screenUpdate());
2265 int BufferView::minVisiblePart()
2267 return 2 * defaultRowHeight();
2271 int BufferView::scroll(int y)
2274 return scrollDown(y);
2276 return scrollUp(-y);
2281 int BufferView::scrollDown(int offset)
2283 Text * text = &buffer_.text();
2284 TextMetrics & tm = d->text_metrics_[text];
2285 int const ymax = height_ + offset;
2287 pair<pit_type, ParagraphMetrics const *> last = tm.last();
2288 int bottom_pos = last.second->position() + last.second->descent();
2289 if (lyxrc.scroll_below_document)
2290 bottom_pos += height_ - minVisiblePart();
2291 if (last.first + 1 == int(text->paragraphs().size())) {
2292 if (bottom_pos <= height_)
2294 offset = min(offset, bottom_pos - height_);
2297 if (bottom_pos > ymax)
2299 tm.newParMetricsDown();
2301 d->anchor_ypos_ -= offset;
2306 int BufferView::scrollUp(int offset)
2308 Text * text = &buffer_.text();
2309 TextMetrics & tm = d->text_metrics_[text];
2310 int ymin = - offset;
2312 pair<pit_type, ParagraphMetrics const *> first = tm.first();
2313 int top_pos = first.second->position() - first.second->ascent();
2314 if (first.first == 0) {
2317 offset = min(offset, - top_pos);
2322 tm.newParMetricsUp();
2324 d->anchor_ypos_ += offset;
2329 void BufferView::setCursorFromRow(int row)
2331 setCursorFromRow(row, buffer_.texrow());
2335 void BufferView::setCursorFromRow(int row, TexRow const & texrow)
2339 pit_type newpit = 0;
2340 pos_type newpos = 0;
2342 texrow.getIdFromRow(row, tmpid, tmppos);
2344 bool posvalid = (tmpid != -1);
2346 // we need to make sure that the row and position
2347 // we got back are valid, because the buffer may well
2348 // have changed since we last generated the LaTeX.
2349 DocIterator dit = buffer_.getParFromID(tmpid);
2350 if (dit == doc_iterator_end(&buffer_))
2352 else if (dit.depth() > 1) {
2353 // We are in an inset.
2354 pos_type lastpos = dit.lastpos();
2355 dit.pos() = tmppos > lastpos ? lastpos : tmppos;
2361 // now have to check pos.
2363 Paragraph const & par = buffer_.text().getPar(newpit);
2364 if (newpos > par.size()) {
2365 LYXERR0("Requested position no longer valid.");
2366 newpos = par.size() - 1;
2371 frontend::Alert::error(_("Inverse Search Failed"),
2372 _("Invalid position requested by inverse search.\n"
2373 "You need to update the viewed document."));
2377 buffer_.text().setCursor(d->cursor_, newpit, newpos);
2378 d->cursor_.setSelection(false);
2379 d->cursor_.resetAnchor();
2384 bool BufferView::setCursorFromInset(Inset const * inset)
2386 // are we already there?
2387 if (cursor().nextInset() == inset)
2390 // Inset is not at cursor position. Find it in the document.
2393 while (cur && cur.nextInset() != inset)
2404 void BufferView::gotoLabel(docstring const & label)
2406 ListOfBuffers bufs = buffer().allRelatives();
2407 ListOfBuffers::iterator it = bufs.begin();
2408 for (; it != bufs.end(); ++it) {
2409 Buffer const * buf = *it;
2412 shared_ptr<Toc> toc = buf->tocBackend().toc("label");
2413 TocIterator toc_it = toc->begin();
2414 TocIterator end = toc->end();
2415 for (; toc_it != end; ++toc_it) {
2416 if (label == toc_it->str()) {
2417 lyx::dispatch(toc_it->action());
2425 TextMetrics const & BufferView::textMetrics(Text const * t) const
2427 return const_cast<BufferView *>(this)->textMetrics(t);
2431 TextMetrics & BufferView::textMetrics(Text const * t)
2434 TextMetricsCache::iterator tmc_it = d->text_metrics_.find(t);
2435 if (tmc_it == d->text_metrics_.end()) {
2436 tmc_it = d->text_metrics_.insert(
2437 make_pair(t, TextMetrics(this, const_cast<Text *>(t)))).first;
2439 return tmc_it->second;
2443 ParagraphMetrics const & BufferView::parMetrics(Text const * t,
2446 return textMetrics(t).parMetrics(pit);
2450 int BufferView::workHeight() const
2456 void BufferView::setCursor(DocIterator const & dit)
2459 size_t const n = dit.depth();
2460 for (size_t i = 0; i < n; ++i)
2461 dit[i].inset().edit(d->cursor_, true);
2463 d->cursor_.setCursor(dit);
2464 d->cursor_.setSelection(false);
2465 d->cursor_.setCurrentFont();
2467 // It seems on general grounds as if this is probably needed, but
2468 // it is not yet clear.
2469 // See bug #7394 and r38388.
2470 // d->cursor.resetAnchor();
2474 bool BufferView::checkDepm(Cursor & cur, Cursor & old)
2476 // Would be wrong to delete anything if we have a selection.
2477 if (cur.selection())
2480 bool need_anchor_change = false;
2481 bool changed = d->cursor_.text()->deleteEmptyParagraphMechanism(cur, old,
2482 need_anchor_change);
2484 if (need_anchor_change)
2492 // we would rather not do this here, but it needs to be done before
2493 // the changed() signal is sent.
2494 buffer_.updateBuffer();
2496 buffer_.changed(true);
2501 bool BufferView::mouseSetCursor(Cursor & cur, bool select)
2503 LASSERT(&cur.bv() == this, return false);
2506 // this event will clear selection so we save selection for
2507 // persistent selection
2508 cap::saveSelection(cursor());
2510 d->cursor_.macroModeClose();
2511 // If a macro has been finalized, the cursor might have been broken
2514 // Has the cursor just left the inset?
2515 bool const leftinset = (&d->cursor_.inset() != &cur.inset());
2517 d->cursor_.fixIfBroken();
2519 // FIXME: shift-mouse selection doesn't work well across insets.
2520 bool const do_selection =
2521 select && &d->cursor_.normalAnchor().inset() == &cur.inset();
2523 // do the dEPM magic if needed
2524 // FIXME: (1) move this to InsetText::notifyCursorLeaves?
2525 // FIXME: (2) if we had a working InsetText::notifyCursorLeaves,
2526 // the leftinset bool would not be necessary (badcursor instead).
2527 bool update = leftinset;
2528 if (!do_selection && d->cursor_.inTexted())
2529 update |= checkDepm(cur, d->cursor_);
2532 d->cursor_.resetAnchor();
2533 d->cursor_.setCursor(cur);
2534 d->cursor_.boundary(cur.boundary());
2536 d->cursor_.setSelection();
2538 d->cursor_.clearSelection();
2540 d->cursor_.finishUndo();
2541 d->cursor_.setCurrentFont();
2543 cur.forceBufferUpdate();
2548 void BufferView::putSelectionAt(DocIterator const & cur,
2549 int length, bool backwards)
2551 d->cursor_.clearSelection();
2557 d->cursor_.pos() += length;
2558 d->cursor_.setSelection(d->cursor_, -length);
2560 d->cursor_.setSelection(d->cursor_, length);
2565 bool BufferView::selectIfEmpty(DocIterator & cur)
2567 if ((cur.inTexted() && !cur.paragraph().empty())
2568 || (cur.inMathed() && !cur.cell().empty()))
2571 pit_type const beg_pit = cur.pit();
2573 // The paragraph associated to this item isn't
2574 // the first one, so it can be selected
2577 // We have to resort to select the space between the
2578 // end of this item and the begin of the next one
2582 // If it is the only item in the document,
2583 // nothing can be selected
2586 pit_type const end_pit = cur.pit();
2587 pos_type const end_pos = cur.pos();
2588 d->cursor_.clearSelection();
2590 d->cursor_.setCursor(cur);
2591 d->cursor_.pit() = beg_pit;
2592 d->cursor_.pos() = 0;
2593 d->cursor_.setSelection(false);
2594 d->cursor_.resetAnchor();
2595 d->cursor_.pit() = end_pit;
2596 d->cursor_.pos() = end_pos;
2597 d->cursor_.setSelection();
2602 Cursor & BufferView::cursor()
2608 Cursor const & BufferView::cursor() const
2614 pit_type BufferView::anchor_ref() const
2616 return d->anchor_pit_;
2620 bool BufferView::singleParUpdate()
2622 Text & buftext = buffer_.text();
2623 pit_type const bottom_pit = d->cursor_.bottom().pit();
2624 TextMetrics & tm = textMetrics(&buftext);
2625 int old_height = tm.parMetrics(bottom_pit).height();
2627 // make sure inline completion pointer is ok
2628 if (d->inlineCompletionPos_.fixIfBroken())
2629 d->inlineCompletionPos_ = DocIterator();
2631 // In Single Paragraph mode, rebreak only
2632 // the (main text, not inset!) paragraph containing the cursor.
2633 // (if this paragraph contains insets etc., rebreaking will
2634 // recursively descend)
2635 tm.redoParagraph(bottom_pit);
2636 ParagraphMetrics const & pm = tm.parMetrics(bottom_pit);
2637 if (pm.height() != old_height)
2638 // Paragraph height has changed so we cannot proceed to
2639 // the singlePar optimisation.
2642 d->update_strategy_ = SingleParUpdate;
2644 LYXERR(Debug::PAINTING, "\ny1: " << pm.position() - pm.ascent()
2645 << " y2: " << pm.position() + pm.descent()
2646 << " pit: " << bottom_pit
2647 << " singlepar: 1");
2652 void BufferView::updateMetrics()
2654 if (height_ == 0 || width_ == 0)
2657 Text & buftext = buffer_.text();
2658 pit_type const npit = int(buftext.paragraphs().size());
2660 // Clear out the position cache in case of full screen redraw,
2661 d->coord_cache_.clear();
2663 // Clear out paragraph metrics to avoid having invalid metrics
2664 // in the cache from paragraphs not relayouted below
2665 // The complete text metrics will be redone.
2666 d->text_metrics_.clear();
2668 TextMetrics & tm = textMetrics(&buftext);
2670 // make sure inline completion pointer is ok
2671 if (d->inlineCompletionPos_.fixIfBroken())
2672 d->inlineCompletionPos_ = DocIterator();
2674 if (d->anchor_pit_ >= npit)
2675 // The anchor pit must have been deleted...
2676 d->anchor_pit_ = npit - 1;
2678 // Rebreak anchor paragraph.
2679 tm.redoParagraph(d->anchor_pit_);
2680 ParagraphMetrics & anchor_pm = tm.par_metrics_[d->anchor_pit_];
2683 if (d->anchor_pit_ == 0) {
2684 int scrollRange = d->scrollbarParameters_.max - d->scrollbarParameters_.min;
2686 // Complete buffer visible? Then it's easy.
2687 if (scrollRange == 0)
2688 d->anchor_ypos_ = anchor_pm.ascent();
2690 // FIXME: Some clever handling needed to show
2691 // the _first_ paragraph up to the top if the cursor is
2692 // in the first line.
2694 anchor_pm.setPosition(d->anchor_ypos_);
2696 LYXERR(Debug::PAINTING, "metrics: "
2697 << " anchor pit = " << d->anchor_pit_
2698 << " anchor ypos = " << d->anchor_ypos_);
2700 // Redo paragraphs above anchor if necessary.
2701 int y1 = d->anchor_ypos_ - anchor_pm.ascent();
2702 // We are now just above the anchor paragraph.
2703 pit_type pit1 = d->anchor_pit_ - 1;
2704 for (; pit1 >= 0 && y1 >= 0; --pit1) {
2705 tm.redoParagraph(pit1);
2706 ParagraphMetrics & pm = tm.par_metrics_[pit1];
2708 // Save the paragraph position in the cache.
2713 // Redo paragraphs below the anchor if necessary.
2714 int y2 = d->anchor_ypos_ + anchor_pm.descent();
2715 // We are now just below the anchor paragraph.
2716 pit_type pit2 = d->anchor_pit_ + 1;
2717 for (; pit2 < npit && y2 <= height_; ++pit2) {
2718 tm.redoParagraph(pit2);
2719 ParagraphMetrics & pm = tm.par_metrics_[pit2];
2721 // Save the paragraph position in the cache.
2726 LYXERR(Debug::PAINTING, "Metrics: "
2727 << " anchor pit = " << d->anchor_pit_
2728 << " anchor ypos = " << d->anchor_ypos_
2731 << " pit1 = " << pit1
2732 << " pit2 = " << pit2);
2734 d->update_strategy_ = FullScreenUpdate;
2736 if (lyxerr.debugging(Debug::WORKAREA)) {
2737 LYXERR(Debug::WORKAREA, "BufferView::updateMetrics");
2738 d->coord_cache_.dump();
2743 void BufferView::insertLyXFile(FileName const & fname)
2745 LASSERT(d->cursor_.inTexted(), return);
2747 // Get absolute path of file and add ".lyx"
2748 // to the filename if necessary
2749 FileName filename = fileSearch(string(), fname.absFileName(), "lyx");
2751 docstring const disp_fn = makeDisplayPath(filename.absFileName());
2752 // emit message signal.
2753 message(bformat(_("Inserting document %1$s..."), disp_fn));
2756 Buffer buf(filename.absFileName(), false);
2757 if (buf.loadLyXFile() == Buffer::ReadSuccess) {
2758 ErrorList & el = buffer_.errorList("Parse");
2759 // Copy the inserted document error list into the current buffer one.
2760 el = buf.errorList("Parse");
2761 buffer_.undo().recordUndo(d->cursor_);
2762 cap::pasteParagraphList(d->cursor_, buf.paragraphs(),
2763 buf.params().documentClassPtr(), el);
2764 res = _("Document %1$s inserted.");
2766 res = _("Could not insert document %1$s");
2769 buffer_.changed(true);
2770 // emit message signal.
2771 message(bformat(res, disp_fn));
2775 Point BufferView::coordOffset(DocIterator const & dit) const
2781 // Addup contribution of nested insets, from inside to outside,
2782 // keeping the outer paragraph for a special handling below
2783 for (size_t i = dit.depth() - 1; i >= 1; --i) {
2784 CursorSlice const & sl = dit[i];
2788 // get relative position inside sl.inset()
2789 sl.inset().cursorPos(*this, sl, dit.boundary() && (i + 1 == dit.depth()), xx, yy);
2791 // Make relative position inside of the edited inset relative to sl.inset()
2795 // In case of an RTL inset, the edited inset will be positioned to the left
2798 bool boundary_i = dit.boundary() && i + 1 == dit.depth();
2799 bool rtl = textMetrics(sl.text()).isRTL(sl, boundary_i);
2804 // remember width for the case that sl.inset() is positioned in an RTL inset
2805 if (i && dit[i - 1].text()) {
2806 // If this Inset is inside a Text Inset, retrieve the Dimension
2807 // from the containing text instead of using Inset::dimension() which
2808 // might not be implemented.
2809 // FIXME (Abdel 23/09/2007): this is a bit messy because of the
2810 // elimination of Inset::dim_ cache. This coordOffset() method needs
2811 // to be rewritten in light of the new design.
2812 Dimension const & dim = coordCache().getInsets().dim(&sl.inset());
2815 Dimension const dim = sl.inset().dimension(*this);
2819 //lyxerr << "Cursor::getPos, i: "
2820 // << i << " x: " << xx << " y: " << y << endl;
2823 // Add contribution of initial rows of outermost paragraph
2824 CursorSlice const & sl = dit[0];
2825 TextMetrics const & tm = textMetrics(sl.text());
2826 ParagraphMetrics const & pm = tm.parMetrics(sl.pit());
2828 LBUFERR(!pm.rows().empty());
2829 y -= pm.rows()[0].ascent();
2831 // FIXME: document this mess
2833 if (sl.pos() > 0 && dit.depth() == 1) {
2835 if (pos && dit.boundary())
2837 // lyxerr << "coordOffset: boundary:" << dit.boundary() << " depth:" << dit.depth() << " pos:" << pos << " sl.pos:" << sl.pos() << endl;
2838 rend = pm.pos2row(pos);
2840 rend = pm.pos2row(sl.pos());
2842 size_t rend = pm.pos2row(sl.pos());
2844 for (size_t rit = 0; rit != rend; ++rit)
2845 y += pm.rows()[rit].height();
2846 y += pm.rows()[rend].ascent();
2848 TextMetrics const & bottom_tm = textMetrics(dit.bottom().text());
2850 // Make relative position from the nested inset now bufferview absolute.
2851 int xx = bottom_tm.cursorX(dit.bottom(), dit.boundary() && dit.depth() == 1);
2854 // In the RTL case place the nested inset at the left of the cursor in
2855 // the outer paragraph
2856 bool boundary_1 = dit.boundary() && 1 == dit.depth();
2857 bool rtl = bottom_tm.isRTL(dit.bottom(), boundary_1);
2865 Point BufferView::getPos(DocIterator const & dit) const
2867 if (!paragraphVisible(dit))
2868 return Point(-1, -1);
2870 CursorSlice const & bot = dit.bottom();
2871 TextMetrics const & tm = textMetrics(bot.text());
2873 // offset from outer paragraph
2874 Point p = coordOffset(dit);
2875 p.y_ += tm.parMetrics(bot.pit()).position();
2880 bool BufferView::paragraphVisible(DocIterator const & dit) const
2882 CursorSlice const & bot = dit.bottom();
2883 TextMetrics const & tm = textMetrics(bot.text());
2885 return tm.contains(bot.pit());
2889 void BufferView::cursorPosAndHeight(Point & p, int & h) const
2891 Cursor const & cur = cursor();
2892 Font const font = cur.getFont();
2893 frontend::FontMetrics const & fm = theFontMetrics(font);
2894 int const asc = fm.maxAscent();
2895 int const des = fm.maxDescent();
2902 bool BufferView::cursorInView(Point const & p, int h) const
2904 Cursor const & cur = cursor();
2905 // does the cursor touch the screen ?
2906 if (p.y_ + h < 0 || p.y_ >= workHeight() || !paragraphVisible(cur))
2912 int BufferView::horizScrollOffset() const
2914 return d->horiz_scroll_offset_;
2918 CursorSlice const & BufferView::currentRowSlice() const
2920 return d->current_row_slice_;
2924 CursorSlice const & BufferView::lastRowSlice() const
2926 return d->last_row_slice_;
2930 void BufferView::setCurrentRowSlice(CursorSlice const & rowSlice)
2932 // nothing to do if the cursor was already on this row
2933 if (d->current_row_slice_ == rowSlice) {
2934 d->last_row_slice_ = CursorSlice();
2938 // if the (previous) current row was scrolled, we have to
2939 // remember it in order to repaint it next time.
2940 if (d->horiz_scroll_offset_ != 0)
2941 d->last_row_slice_ = d->current_row_slice_;
2943 d->last_row_slice_ = CursorSlice();
2945 // Since we changed row, the scroll offset is not valid anymore
2946 d->horiz_scroll_offset_ = 0;
2947 d->current_row_slice_ = rowSlice;
2951 void BufferView::checkCursorScrollOffset(PainterInfo & pi)
2953 CursorSlice rowSlice = d->cursor_.bottom();
2954 TextMetrics const & tm = textMetrics(rowSlice.text());
2956 // Stop if metrics have not been computed yet, since it means
2957 // that there is nothing to do.
2958 if (!tm.contains(rowSlice.pit()))
2960 ParagraphMetrics const & pm = tm.parMetrics(rowSlice.pit());
2961 Row const & row = pm.getRow(rowSlice.pos(),
2962 d->cursor_.boundary() && rowSlice == d->cursor_.top());
2963 rowSlice.pos() = row.pos();
2965 // Set the row on which the cursor lives.
2966 setCurrentRowSlice(rowSlice);
2968 // If insets referred to by cursor are not all in the cache, the positions
2969 // need to be recomputed.
2970 if (!d->cursor_.inCoordCache()) {
2971 /** FIXME: the code below adds an extraneous computation of
2972 * inset positions, and can therefore be bad for performance
2973 * (think for example about a very large tabular inset.
2974 * Redawing the row where it is means redrawing the whole
2977 * The bug that this fixes is the following: assume that there
2978 * is a very large math inset. Upon entering the inset, when
2979 * pressing `End', the row is not scrolled and the cursor is
2980 * not visible. The extra row computation makes sure that the
2981 * inset positions are correctly computed and set in the
2982 * cache. This would not happen if we did not have two-stage
2985 * A proper fix would be to always have proper inset positions
2988 // Force the recomputation of inset positions
2989 bool const drawing = pi.pain.isDrawingEnabled();
2990 pi.pain.setDrawingEnabled(false);
2991 // No need to care about vertical position.
2992 RowPainter rp(pi, buffer().text(), d->cursor_.bottom().pit(), row,
2993 -d->horiz_scroll_offset_, 0);
2995 pi.pain.setDrawingEnabled(drawing);
2998 // Current x position of the cursor in pixels
2999 int cur_x = getPos(d->cursor_).x_;
3001 // Horizontal scroll offset of the cursor row in pixels
3002 int offset = d->horiz_scroll_offset_;
3003 int const MARGIN = 2 * theFontMetrics(d->cursor_.real_current_font).em()
3005 if (row.right_x() <= workWidth() - row.right_margin) {
3006 // Row is narrower than the work area, no offset needed.
3009 if (cur_x - offset < MARGIN) {
3010 // cursor would be too far right
3011 offset = cur_x - MARGIN;
3012 } else if (cur_x - offset > workWidth() - MARGIN) {
3013 // cursor would be too far left
3014 offset = cur_x - workWidth() + MARGIN;
3016 // Correct the offset to make sure that we do not scroll too much
3019 if (row.right_x() - offset < workWidth() - row.right_margin)
3020 offset = row.right_x() - workWidth() + row.right_margin;
3023 //lyxerr << "cur_x=" << cur_x << ", offset=" << offset << ", row.wid=" << row.width() << ", margin=" << MARGIN << endl;
3025 if (offset != d->horiz_scroll_offset_)
3026 LYXERR(Debug::PAINTING, "Horiz. scroll offset changed from "
3027 << d->horiz_scroll_offset_ << " to " << offset);
3029 if (d->update_strategy_ == NoScreenUpdate
3030 && (offset != d->horiz_scroll_offset_
3031 || !d->last_row_slice_.empty())) {
3032 // FIXME: if one uses SingleParUpdate, then home/end
3033 // will not work on long rows. Why?
3034 d->update_strategy_ = FullScreenUpdate;
3037 d->horiz_scroll_offset_ = offset;
3041 void BufferView::draw(frontend::Painter & pain)
3043 if (height_ == 0 || width_ == 0)
3045 LYXERR(Debug::PAINTING, "\t\t*** START DRAWING ***");
3047 Text & text = buffer_.text();
3048 TextMetrics const & tm = d->text_metrics_[&text];
3049 int const y = tm.first().second->position();
3050 PainterInfo pi(this, pain);
3052 // Check whether the row where the cursor lives needs to be scrolled.
3053 // Update the drawing strategy if needed.
3054 checkCursorScrollOffset(pi);
3056 switch (d->update_strategy_) {
3058 case NoScreenUpdate:
3059 // If no screen painting is actually needed, only some the different
3060 // coordinates of insets and paragraphs needs to be updated.
3061 LYXERR(Debug::PAINTING, "Strategy: NoScreenUpdate");
3062 pi.full_repaint = true;
3063 pi.pain.setDrawingEnabled(false);
3067 case SingleParUpdate:
3068 pi.full_repaint = false;
3069 LYXERR(Debug::PAINTING, "Strategy: SingleParUpdate");
3070 // In general, only the current row of the outermost paragraph
3071 // will be redrawn. Particular cases where selection spans
3072 // multiple paragraph are correctly detected in TextMetrics.
3076 case DecorationUpdate:
3077 // FIXME: We should also distinguish DecorationUpdate to avoid text
3078 // drawing if possible. This is not possible to do easily right now
3079 // because of the single backing pixmap.
3081 case FullScreenUpdate:
3083 LYXERR(Debug::PAINTING,
3084 ((d->update_strategy_ == FullScreenUpdate)
3085 ? "Strategy: FullScreenUpdate"
3086 : "Strategy: DecorationUpdate"));
3088 // The whole screen, including insets, will be refreshed.
3089 pi.full_repaint = true;
3091 // Clear background.
3092 pain.fillRectangle(0, 0, width_, height_,
3093 pi.backgroundColor(&buffer_.inset()));
3098 // and possibly grey out below
3099 pair<pit_type, ParagraphMetrics const *> lastpm = tm.last();
3100 int const y2 = lastpm.second->position() + lastpm.second->descent();
3103 Color color = buffer().isInternal()
3104 ? Color_background : Color_bottomarea;
3105 pain.fillRectangle(0, y2, width_, height_ - y2, color);
3109 LYXERR(Debug::PAINTING, "\n\t\t*** END DRAWING ***");
3111 // The scrollbar needs an update.
3114 // Normalize anchor for next time
3115 pair<pit_type, ParagraphMetrics const *> firstpm = tm.first();
3116 pair<pit_type, ParagraphMetrics const *> lastpm = tm.last();
3117 for (pit_type pit = firstpm.first; pit <= lastpm.first; ++pit) {
3118 ParagraphMetrics const & pm = tm.parMetrics(pit);
3119 if (pm.position() + pm.descent() > 0) {
3120 d->anchor_pit_ = pit;
3121 d->anchor_ypos_ = pm.position();
3125 LYXERR(Debug::PAINTING, "Found new anchor pit = " << d->anchor_pit_
3126 << " anchor ypos = " << d->anchor_ypos_);
3130 void BufferView::message(docstring const & msg)
3133 d->gui_->message(msg);
3137 void BufferView::showDialog(string const & name)
3140 d->gui_->showDialog(name, string());
3144 void BufferView::showDialog(string const & name,
3145 string const & data, Inset * inset)
3148 d->gui_->showDialog(name, data, inset);
3152 void BufferView::updateDialog(string const & name, string const & data)
3155 d->gui_->updateDialog(name, data);
3159 void BufferView::setGuiDelegate(frontend::GuiBufferViewDelegate * gui)
3165 // FIXME: Move this out of BufferView again
3166 docstring BufferView::contentsOfPlaintextFile(FileName const & fname)
3168 if (!fname.isReadableFile()) {
3169 docstring const error = from_ascii(strerror(errno));
3170 docstring const file = makeDisplayPath(fname.absFileName(), 50);
3171 docstring const text =
3172 bformat(_("Could not read the specified document\n"
3173 "%1$s\ndue to the error: %2$s"), file, error);
3174 Alert::error(_("Could not read file"), text);
3178 if (!fname.isReadableFile()) {
3179 docstring const file = makeDisplayPath(fname.absFileName(), 50);
3180 docstring const text =
3181 bformat(_("%1$s\n is not readable."), file);
3182 Alert::error(_("Could not open file"), text);
3186 // FIXME UNICODE: We don't know the encoding of the file
3187 docstring file_content = fname.fileContents("UTF-8");
3188 if (file_content.empty()) {
3189 Alert::error(_("Reading not UTF-8 encoded file"),
3190 _("The file is not UTF-8 encoded.\n"
3191 "It will be read as local 8Bit-encoded.\n"
3192 "If this does not give the correct result\n"
3193 "then please change the encoding of the file\n"
3194 "to UTF-8 with a program other than LyX.\n"));
3195 file_content = fname.fileContents("local8bit");
3198 return normalize_c(file_content);
3202 void BufferView::insertPlaintextFile(FileName const & f, bool asParagraph)
3204 docstring const tmpstr = contentsOfPlaintextFile(f);
3209 Cursor & cur = cursor();
3210 cap::replaceSelection(cur);
3211 buffer_.undo().recordUndo(cur);
3213 cur.innerText()->insertStringAsParagraphs(cur, tmpstr, cur.current_font);
3215 cur.innerText()->insertStringAsLines(cur, tmpstr, cur.current_font);
3217 buffer_.changed(true);
3221 docstring const & BufferView::inlineCompletion() const
3223 return d->inlineCompletion_;
3227 size_t const & BufferView::inlineCompletionUniqueChars() const
3229 return d->inlineCompletionUniqueChars_;
3233 DocIterator const & BufferView::inlineCompletionPos() const
3235 return d->inlineCompletionPos_;
3239 void BufferView::resetInlineCompletionPos()
3241 d->inlineCompletionPos_ = DocIterator();
3245 bool samePar(DocIterator const & a, DocIterator const & b)
3247 if (a.empty() && b.empty())
3249 if (a.empty() || b.empty())
3251 if (a.depth() != b.depth())
3253 return &a.innerParagraph() == &b.innerParagraph();
3257 void BufferView::setInlineCompletion(Cursor const & cur, DocIterator const & pos,
3258 docstring const & completion, size_t uniqueChars)
3260 uniqueChars = min(completion.size(), uniqueChars);
3261 bool changed = d->inlineCompletion_ != completion
3262 || d->inlineCompletionUniqueChars_ != uniqueChars;
3263 bool singlePar = true;
3264 d->inlineCompletion_ = completion;
3265 d->inlineCompletionUniqueChars_ = min(completion.size(), uniqueChars);
3267 //lyxerr << "setInlineCompletion pos=" << pos << " completion=" << completion << " uniqueChars=" << uniqueChars << std::endl;
3270 DocIterator const & old = d->inlineCompletionPos_;
3272 //lyxerr << "inlineCompletionPos changed" << std::endl;
3273 // old or pos are in another paragraph?
3274 if ((!samePar(cur, pos) && !pos.empty())
3275 || (!samePar(cur, old) && !old.empty())) {
3277 //lyxerr << "different paragraph" << std::endl;
3279 d->inlineCompletionPos_ = pos;
3284 if (singlePar && !(cur.result().screenUpdate() & Update::Force))
3285 cur.screenUpdateFlags(cur.result().screenUpdate() | Update::SinglePar);
3287 cur.screenUpdateFlags(cur.result().screenUpdate() | Update::Force);
3292 bool BufferView::clickableInset() const
3294 return d->clickable_inset_;