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"
40 #include "LyXAction.h"
44 #include "MetricsInfo.h"
45 #include "Paragraph.h"
46 #include "ParagraphParameters.h"
47 #include "ParIterator.h"
50 #include "TextClass.h"
51 #include "TextMetrics.h"
53 #include "TocBackend.h"
54 #include "WordLangTuple.h"
56 #include "insets/InsetBibtex.h"
57 #include "insets/InsetCommand.h" // ChangeRefs
58 #include "insets/InsetExternal.h"
59 #include "insets/InsetGraphics.h"
60 #include "insets/InsetNote.h"
61 #include "insets/InsetRef.h"
62 #include "insets/InsetText.h"
64 #include "frontends/alert.h"
65 #include "frontends/Application.h"
66 #include "frontends/Delegates.h"
67 #include "frontends/FontMetrics.h"
68 #include "frontends/Painter.h"
69 #include "frontends/Selection.h"
71 #include "support/convert.h"
72 #include "support/debug.h"
73 #include "support/ExceptionMessage.h"
74 #include "support/filetools.h"
75 #include "support/gettext.h"
76 #include "support/lassert.h"
77 #include "support/lstrings.h"
78 #include "support/Package.h"
79 #include "support/types.h"
89 using namespace lyx::support;
93 namespace Alert = frontend::Alert;
97 /// Return an inset of this class if it exists at the current cursor position
99 T * getInsetByCode(Cursor const & cur, InsetCode code)
101 DocIterator it = cur;
102 Inset * inset = it.nextInset();
103 if (inset && inset->lyxCode() == code)
104 return static_cast<T*>(inset);
109 /// Note that comparing contents can only be used for InsetCommand
110 bool findNextInset(DocIterator & dit, vector<InsetCode> const & codes,
111 docstring const & contents)
113 DocIterator tmpdit = dit;
116 Inset const * inset = tmpdit.nextInset();
118 bool const valid_code = std::find(codes.begin(), codes.end(),
119 inset->lyxCode()) != codes.end();
120 InsetCommand const * ic = inset->asInsetCommand();
121 bool const same_or_no_contents = contents.empty()
122 || (ic && (ic->getFirstNonOptParam() == contents));
124 if (valid_code && same_or_no_contents) {
129 tmpdit.forwardInset();
136 /// Looks for next inset with one of the given codes.
137 /// Note that same_content can only be used for InsetCommand
138 bool findInset(DocIterator & dit, vector<InsetCode> const & codes,
142 DocIterator tmpdit = dit;
143 tmpdit.forwardInset();
147 Inset const * inset = tmpdit.nextInset();
148 if (same_content && inset) {
149 InsetCommand const * ic = inset->asInsetCommand();
151 bool const valid_code = std::find(codes.begin(), codes.end(),
152 ic->lyxCode()) != codes.end();
154 contents = ic->getFirstNonOptParam();
158 if (!findNextInset(tmpdit, codes, contents)) {
159 if (dit.depth() != 1 || dit.pit() != 0 || dit.pos() != 0) {
160 Inset * inset = &tmpdit.bottom().inset();
161 tmpdit = doc_iterator_begin(&inset->buffer(), inset);
162 if (!findNextInset(tmpdit, codes, contents))
174 /// Looks for next inset with the given code
175 void findInset(DocIterator & dit, InsetCode code, bool same_content)
177 findInset(dit, vector<InsetCode>(1, code), same_content);
181 /// Moves cursor to the next inset with one of the given codes.
182 void gotoInset(BufferView * bv, vector<InsetCode> const & codes,
185 Cursor tmpcur = bv->cursor();
186 if (!findInset(tmpcur, codes, same_content)) {
187 bv->cursor().message(_("No more insets"));
191 tmpcur.clearSelection();
192 bv->setCursor(tmpcur);
197 /// Moves cursor to the next inset with given code.
198 void gotoInset(BufferView * bv, InsetCode code, bool same_content)
200 gotoInset(bv, vector<InsetCode>(1, code), same_content);
204 /// A map from a Text to the associated text metrics
205 typedef map<Text const *, TextMetrics> TextMetricsCache;
207 enum ScreenUpdateStrategy {
217 /////////////////////////////////////////////////////////////////////
221 /////////////////////////////////////////////////////////////////////
223 struct BufferView::Private
225 Private(BufferView & bv): wh_(0), cursor_(bv),
226 anchor_pit_(0), anchor_ypos_(0),
227 inlineCompletionUniqueChars_(0),
228 last_inset_(0), clickable_inset_(false),
229 mouse_position_cache_(),
230 bookmark_edit_position_(-1), gui_(0)
234 ScrollbarParameters scrollbarParameters_;
236 ScreenUpdateStrategy update_strategy_;
238 CoordCache coord_cache_;
240 /// Estimated average par height for scrollbar.
242 /// this is used to handle XSelection events in the right manner.
251 pit_type anchor_pit_;
255 vector<int> par_height_;
258 DocIterator inlineCompletionPos_;
260 docstring inlineCompletion_;
262 size_t inlineCompletionUniqueChars_;
264 /// keyboard mapping object.
267 /// last visited inset.
268 /** kept to send setMouseHover(false).
269 * Not owned, so don't delete.
271 Inset const * last_inset_;
272 /// are we hovering something that we can click
273 bool clickable_inset_;
275 /// position of the mouse at the time of the last mouse move
276 /// This is used to update the hovering status of inset in
277 /// cases where the buffer is scrolled, but the mouse didn't move.
278 Point mouse_position_cache_;
280 // cache for id of the paragraph which was edited the last time
281 int bookmark_edit_position_;
283 mutable TextMetricsCache text_metrics_;
286 /** Not owned, so don't delete.
288 frontend::GuiBufferViewDelegate * gui_;
290 /// Cache for Find Next
291 FuncRequest search_request_cache_;
294 map<string, Inset *> edited_insets_;
298 BufferView::BufferView(Buffer & buf)
299 : width_(0), height_(0), full_screen_(false), buffer_(buf),
300 d(new Private(*this))
302 d->xsel_cache_.set = false;
303 d->intl_.initKeyMapper(lyxrc.use_kbmap);
305 d->cursor_.setBuffer(&buf);
306 d->cursor_.push(buffer_.inset());
307 d->cursor_.resetAnchor();
308 d->cursor_.setCurrentFont();
310 buffer_.updatePreviews();
314 BufferView::~BufferView()
316 // current buffer is going to be switched-off, save cursor pos
317 // Ideally, the whole cursor stack should be saved, but session
318 // currently can only handle bottom (whole document) level pit and pos.
319 // That is to say, if a cursor is in a nested inset, it will be
320 // restore to the left of the top level inset.
321 LastFilePosSection::FilePos fp;
322 fp.pit = d->cursor_.bottom().pit();
323 fp.pos = d->cursor_.bottom().pos();
324 theSession().lastFilePos().save(buffer_.fileName(), fp);
327 d->last_inset_->setMouseHover(this, false);
333 int BufferView::rightMargin() const
335 // The additional test for the case the outliner is opened.
337 !lyxrc.full_screen_limit ||
338 width_ < lyxrc.full_screen_width + 20)
341 return (width_ - lyxrc.full_screen_width) / 2;
345 int BufferView::leftMargin() const
347 return rightMargin();
351 bool BufferView::isTopScreen() const
353 return d->scrollbarParameters_.position == d->scrollbarParameters_.min;
357 bool BufferView::isBottomScreen() const
359 return d->scrollbarParameters_.position == d->scrollbarParameters_.max;
363 Intl & BufferView::getIntl()
369 Intl const & BufferView::getIntl() const
375 CoordCache & BufferView::coordCache()
377 return d->coord_cache_;
381 CoordCache const & BufferView::coordCache() const
383 return d->coord_cache_;
387 Buffer & BufferView::buffer()
393 Buffer const & BufferView::buffer() const
399 bool BufferView::fitCursor()
401 if (cursorStatus(d->cursor_) == CUR_INSIDE) {
402 frontend::FontMetrics const & fm =
403 theFontMetrics(d->cursor_.getFont().fontInfo());
404 int const asc = fm.maxAscent();
405 int const des = fm.maxDescent();
406 Point const p = getPos(d->cursor_);
407 if (p.y_ - asc >= 0 && p.y_ + des < height_)
414 void BufferView::processUpdateFlags(Update::flags flags)
416 // This is close to a hot-path.
417 LYXERR(Debug::DEBUG, "BufferView::processUpdateFlags()"
418 << "[fitcursor = " << (flags & Update::FitCursor)
419 << ", forceupdate = " << (flags & Update::Force)
420 << ", singlepar = " << (flags & Update::SinglePar)
421 << "] buffer: " << &buffer_);
423 // FIXME Does this really need doing here? It's done in updateBuffer, and
424 // if the Buffer doesn't need updating, then do the macros?
425 buffer_.updateMacros();
427 // Now do the first drawing step if needed. This consists on updating
428 // the CoordCache in updateMetrics().
429 // The second drawing step is done in WorkArea::redraw() if needed.
431 // Case when no explicit update is requested.
433 // no need to redraw anything.
434 d->update_strategy_ = NoScreenUpdate;
438 if (flags == Update::Decoration) {
439 d->update_strategy_ = DecorationUpdate;
440 buffer_.changed(false);
444 if (flags == Update::FitCursor
445 || flags == (Update::Decoration | Update::FitCursor)) {
446 // tell the frontend to update the screen if needed.
451 if (flags & Update::Decoration) {
452 d->update_strategy_ = DecorationUpdate;
453 buffer_.changed(false);
456 // no screen update is needed.
457 d->update_strategy_ = NoScreenUpdate;
461 bool const full_metrics = flags & Update::Force || !singleParUpdate();
464 // We have to update the full screen metrics.
467 if (!(flags & Update::FitCursor)) {
468 // Nothing to do anymore. Trigger a redraw and return
469 buffer_.changed(false);
473 // updateMetrics() does not update paragraph position
474 // This is done at draw() time. So we need a redraw!
475 buffer_.changed(false);
478 // The cursor is off screen so ensure it is visible.
483 updateHoveredInset();
487 void BufferView::updateScrollbar()
489 if (height_ == 0 && width_ == 0)
492 // We prefer fixed size line scrolling.
493 d->scrollbarParameters_.single_step = defaultRowHeight();
494 // We prefer full screen page scrolling.
495 d->scrollbarParameters_.page_step = height_;
497 Text & t = buffer_.text();
498 TextMetrics & tm = d->text_metrics_[&t];
500 LYXERR(Debug::GUI, " Updating scrollbar: height: "
501 << t.paragraphs().size()
502 << " curr par: " << d->cursor_.bottom().pit()
503 << " default height " << defaultRowHeight());
505 size_t const parsize = t.paragraphs().size();
506 if (d->par_height_.size() != parsize) {
507 d->par_height_.clear();
508 // FIXME: We assume a default paragraph height of 2 rows. This
509 // should probably be pondered with the screen width.
510 d->par_height_.resize(parsize, defaultRowHeight() * 2);
513 // Look at paragraph heights on-screen
514 pair<pit_type, ParagraphMetrics const *> first = tm.first();
515 pair<pit_type, ParagraphMetrics const *> last = tm.last();
516 for (pit_type pit = first.first; pit <= last.first; ++pit) {
517 d->par_height_[pit] = tm.parMetrics(pit).height();
518 LYXERR(Debug::SCROLLING, "storing height for pit " << pit << " : "
519 << d->par_height_[pit]);
522 int top_pos = first.second->position() - first.second->ascent();
523 int bottom_pos = last.second->position() + last.second->descent();
524 bool first_visible = first.first == 0 && top_pos >= 0;
525 bool last_visible = last.first + 1 == int(parsize) && bottom_pos <= height_;
526 if (first_visible && last_visible) {
527 d->scrollbarParameters_.min = 0;
528 d->scrollbarParameters_.max = 0;
532 d->scrollbarParameters_.min = top_pos;
533 for (size_t i = 0; i != size_t(first.first); ++i)
534 d->scrollbarParameters_.min -= d->par_height_[i];
535 d->scrollbarParameters_.max = bottom_pos;
536 for (size_t i = last.first + 1; i != parsize; ++i)
537 d->scrollbarParameters_.max += d->par_height_[i];
539 d->scrollbarParameters_.position = 0;
540 // The reference is the top position so we remove one page.
541 if (lyxrc.scroll_below_document)
542 d->scrollbarParameters_.max -= minVisiblePart();
544 d->scrollbarParameters_.max -= d->scrollbarParameters_.page_step;
548 ScrollbarParameters const & BufferView::scrollbarParameters() const
550 return d->scrollbarParameters_;
554 docstring BufferView::toolTip(int x, int y) const
556 // Get inset under mouse, if there is one.
557 Inset const * covering_inset = getCoveringInset(buffer_.text(), x, y);
559 // No inset, no tooltip...
561 return covering_inset->toolTip(*this, x, y);
565 string BufferView::contextMenu(int x, int y) const
567 //If there is a selection, return the containing inset menu
568 if (d->cursor_.selection())
569 return d->cursor_.inset().contextMenu(*this, x, y);
571 // Get inset under mouse, if there is one.
572 Inset const * covering_inset = getCoveringInset(buffer_.text(), x, y);
574 return covering_inset->contextMenu(*this, x, y);
576 return buffer_.inset().contextMenu(*this, x, y);
580 void BufferView::scrollDocView(int value, bool update)
582 int const offset = value - d->scrollbarParameters_.position;
584 // No scrolling at all? No need to redraw anything
588 // If the offset is less than 2 screen height, prefer to scroll instead.
589 if (abs(offset) <= 2 * height_) {
590 d->anchor_ypos_ -= offset;
591 buffer_.changed(true);
592 updateHoveredInset();
596 // cut off at the top
597 if (value <= d->scrollbarParameters_.min) {
598 DocIterator dit = doc_iterator_begin(&buffer_);
599 showCursor(dit, false, update);
600 LYXERR(Debug::SCROLLING, "scroll to top");
604 // cut off at the bottom
605 if (value >= d->scrollbarParameters_.max) {
606 DocIterator dit = doc_iterator_end(&buffer_);
608 showCursor(dit, false, update);
609 LYXERR(Debug::SCROLLING, "scroll to bottom");
613 // find paragraph at target position
614 int par_pos = d->scrollbarParameters_.min;
616 for (; i != int(d->par_height_.size()); ++i) {
617 par_pos += d->par_height_[i];
618 if (par_pos >= value)
622 if (par_pos < value) {
623 // It seems we didn't find the correct pit so stay on the safe side and
625 LYXERR0("scrolling position not found!");
626 scrollDocView(d->scrollbarParameters_.max, update);
630 DocIterator dit = doc_iterator_begin(&buffer_);
632 LYXERR(Debug::SCROLLING, "value = " << value << " -> scroll to pit " << i);
633 showCursor(dit, false, update);
637 // FIXME: this method is not working well.
638 void BufferView::setCursorFromScrollbar()
640 TextMetrics & tm = d->text_metrics_[&buffer_.text()];
642 int const height = 2 * defaultRowHeight();
643 int const first = height;
644 int const last = height_ - height;
646 Cursor const & oldcur = d->cursor_;
648 switch (cursorStatus(oldcur)) {
656 int const y = getPos(oldcur).y_;
657 newy = min(last, max(y, first));
661 // We reset the cursor because cursorStatus() does not
662 // work when the cursor is within mathed.
665 tm.setCursorFromCoordinates(cur, 0, newy);
667 // update the bufferview cursor and notify insets
668 // FIXME: Care about the d->cursor_ flags to redraw if needed
669 Cursor old = d->cursor_;
671 // the DEPM call in mouseSetCursor() might have destroyed the
672 // paragraph the cursor is in.
673 bool badcursor = old.fixIfBroken();
674 badcursor |= notifyCursorLeavesOrEnters(old, d->cursor_);
676 d->cursor_.fixIfBroken();
680 Change const BufferView::getCurrentChange() const
682 if (!d->cursor_.selection())
683 return Change(Change::UNCHANGED);
685 DocIterator dit = d->cursor_.selectionBegin();
686 return dit.paragraph().lookupChange(dit.pos());
690 // this could be used elsewhere as well?
691 // FIXME: This does not work within mathed!
692 CursorStatus BufferView::cursorStatus(DocIterator const & dit) const
694 Point const p = getPos(dit);
697 if (p.y_ > workHeight())
703 void BufferView::bookmarkEditPosition()
705 // Don't eat cpu time for each keystroke
706 if (d->cursor_.paragraph().id() == d->bookmark_edit_position_)
709 d->bookmark_edit_position_ = d->cursor_.paragraph().id();
713 void BufferView::saveBookmark(unsigned int idx)
715 // tentatively save bookmark, id and pos will be used to
716 // acturately locate a bookmark in a 'live' lyx session.
717 // pit and pos will be updated with bottom level pit/pos
719 if (!buffer_.isInternal()) {
720 theSession().bookmarks().save(
722 d->cursor_.bottom().pit(),
723 d->cursor_.bottom().pos(),
724 d->cursor_.paragraph().id(),
729 // emit message signal.
730 message(_("Save bookmark"));
735 bool BufferView::moveToPosition(pit_type bottom_pit, pos_type bottom_pos,
736 int top_id, pos_type top_pos)
738 bool success = false;
741 d->cursor_.clearSelection();
743 // if a valid par_id is given, try it first
744 // This is the case for a 'live' bookmark when unique paragraph ID
745 // is used to track bookmarks.
747 dit = buffer_.getParFromID(top_id);
749 dit.pos() = min(dit.paragraph().size(), top_pos);
750 // Some slices of the iterator may not be
751 // reachable (e.g. closed collapsable inset)
752 // so the dociterator may need to be
753 // shortened. Otherwise, setCursor may crash
754 // lyx when the cursor can not be set to these
756 size_t const n = dit.depth();
757 for (size_t i = 0; i < n; ++i)
758 if (!dit[i].inset().editable()) {
766 // if top_id == 0, or searching through top_id failed
767 // This is the case for a 'restored' bookmark when only bottom
768 // (document level) pit was saved. Because of this, bookmark
769 // restoration is inaccurate. If a bookmark was within an inset,
770 // it will be restored to the left of the outmost inset that contains
772 if (bottom_pit < int(buffer_.paragraphs().size())) {
773 dit = doc_iterator_begin(&buffer_);
775 dit.pit() = bottom_pit;
776 dit.pos() = min(bottom_pos, dit.paragraph().size());
781 // Note: only bottom (document) level pit is set.
783 // set the current font.
784 d->cursor_.setCurrentFont();
785 // To center the screen on this new position we need the
786 // paragraph position which is computed at draw() time.
787 // So we need a redraw!
788 buffer_.changed(false);
797 void BufferView::translateAndInsert(char_type c, Text * t, Cursor & cur)
799 if (lyxrc.rtl_support) {
800 if (d->cursor_.real_current_font.isRightToLeft()) {
801 if (d->intl_.keymap == Intl::PRIMARY)
802 d->intl_.keyMapSec();
804 if (d->intl_.keymap == Intl::SECONDARY)
805 d->intl_.keyMapPrim();
809 d->intl_.getTransManager().translateAndInsert(c, t, cur);
813 int BufferView::workWidth() const
819 void BufferView::recenter()
821 showCursor(d->cursor_, true, true);
825 void BufferView::showCursor()
827 showCursor(d->cursor_, false, true);
831 void BufferView::showCursor(DocIterator const & dit,
832 bool recenter, bool update)
834 if (scrollToCursor(dit, recenter) && update) {
835 buffer_.changed(true);
836 updateHoveredInset();
841 void BufferView::scrollToCursor()
843 if (scrollToCursor(d->cursor_, false)) {
844 buffer_.changed(true);
845 updateHoveredInset();
850 bool BufferView::scrollToCursor(DocIterator const & dit, bool recenter)
852 // We are not properly started yet, delay until resizing is
857 LYXERR(Debug::SCROLLING, "recentering!");
859 CursorSlice const & bot = dit.bottom();
860 TextMetrics & tm = d->text_metrics_[bot.text()];
862 pos_type const max_pit = pos_type(bot.text()->paragraphs().size() - 1);
863 int bot_pit = bot.pit();
864 if (bot_pit > max_pit) {
865 // FIXME: Why does this happen?
866 LYXERR0("bottom pit is greater that max pit: "
867 << bot_pit << " > " << max_pit);
871 if (bot_pit == tm.first().first - 1)
872 tm.newParMetricsUp();
873 else if (bot_pit == tm.last().first + 1)
874 tm.newParMetricsDown();
876 if (tm.contains(bot_pit)) {
877 ParagraphMetrics const & pm = tm.parMetrics(bot_pit);
878 LASSERT(!pm.rows().empty(), /**/);
879 // FIXME: smooth scrolling doesn't work in mathed.
880 CursorSlice const & cs = dit.innerTextSlice();
881 int offset = coordOffset(dit).y_;
882 int ypos = pm.position() + offset;
883 Dimension const & row_dim =
884 pm.getRow(cs.pos(), dit.boundary()).dimension();
887 scrolled = scroll(ypos - height_/2);
889 // We try to visualize the whole row, if the row height is larger than
890 // the screen height, we scroll to a heuristic value of height_ / 4.
891 // FIXME: This heuristic value should be replaced by a recursive search
892 // for a row in the inset that can be visualized completely.
893 else if (row_dim.height() > height_) {
894 if (ypos < defaultRowHeight())
895 scrolled = scroll(ypos - height_ / 4);
896 else if (ypos > height_ - defaultRowHeight())
897 scrolled = scroll(ypos - 3 * height_ / 4);
900 // If the top part of the row falls of the screen, we scroll
901 // up to align the top of the row with the top of the screen.
902 else if (ypos - row_dim.ascent() < 0 && ypos < height_) {
903 int ynew = row_dim.ascent();
904 scrolled = scrollUp(ynew - ypos);
907 // If the bottom of the row falls of the screen, we scroll down.
908 else if (ypos + row_dim.descent() > height_ && ypos > 0) {
909 int ynew = height_ - row_dim.descent();
910 scrolled = scrollDown(ypos - ynew);
913 // else, nothing to do, the cursor is already visible so we just return.
914 return scrolled != 0;
917 // fix inline completion position
918 if (d->inlineCompletionPos_.fixIfBroken())
919 d->inlineCompletionPos_ = DocIterator();
921 tm.redoParagraph(bot_pit);
922 ParagraphMetrics const & pm = tm.parMetrics(bot_pit);
923 int offset = coordOffset(dit).y_;
925 d->anchor_pit_ = bot_pit;
926 CursorSlice const & cs = dit.innerTextSlice();
927 Dimension const & row_dim =
928 pm.getRow(cs.pos(), dit.boundary()).dimension();
931 d->anchor_ypos_ = height_/2;
932 else if (d->anchor_pit_ == 0)
933 d->anchor_ypos_ = offset + pm.ascent();
934 else if (d->anchor_pit_ == max_pit)
935 d->anchor_ypos_ = height_ - offset - row_dim.descent();
936 else if (offset > height_)
937 d->anchor_ypos_ = height_ - offset - defaultRowHeight();
939 d->anchor_ypos_ = defaultRowHeight() * 2;
945 void BufferView::makeDocumentClass()
947 DocumentClassConstPtr olddc = buffer_.params().documentClassPtr();
948 buffer_.params().makeDocumentClass();
949 updateDocumentClass(olddc);
953 void BufferView::updateDocumentClass(DocumentClassConstPtr olddc)
955 message(_("Converting document to new document class..."));
957 StableDocIterator backcur(d->cursor_);
958 ErrorList & el = buffer_.errorList("Class Switch");
959 cap::switchBetweenClasses(
960 olddc, buffer_.params().documentClassPtr(),
961 static_cast<InsetText &>(buffer_.inset()), el);
963 setCursor(backcur.asDocIterator(&buffer_));
965 buffer_.errors("Class Switch");
969 /** Return the change status at cursor position, taking in account the
970 * status at each level of the document iterator (a table in a deleted
971 * footnote is deleted).
972 * When \param outer is true, the top slice is not looked at.
974 static Change::Type lookupChangeType(DocIterator const & dit, bool outer = false)
976 size_t const depth = dit.depth() - (outer ? 1 : 0);
978 for (size_t i = 0 ; i < depth ; ++i) {
979 CursorSlice const & slice = dit[i];
980 if (!slice.inset().inMathed()
981 && slice.pos() < slice.paragraph().size()) {
982 Change::Type const ch = slice.paragraph().lookupChange(slice.pos()).type;
983 if (ch != Change::UNCHANGED)
987 return Change::UNCHANGED;
991 bool BufferView::getStatus(FuncRequest const & cmd, FuncStatus & flag)
993 FuncCode const act = cmd.action();
995 // Can we use a readonly buffer?
996 if (buffer_.isReadonly()
997 && !lyxaction.funcHasFlag(act, LyXAction::ReadOnly)
998 && !lyxaction.funcHasFlag(act, LyXAction::NoBuffer)) {
999 flag.message(from_utf8(N_("Document is read-only")));
1000 flag.setEnabled(false);
1004 // Are we in a DELETED change-tracking region?
1005 if (lookupChangeType(d->cursor_, true) == Change::DELETED
1006 && !lyxaction.funcHasFlag(act, LyXAction::ReadOnly)
1007 && !lyxaction.funcHasFlag(act, LyXAction::NoBuffer)) {
1008 flag.message(from_utf8(N_("This portion of the document is deleted.")));
1009 flag.setEnabled(false);
1013 Cursor & cur = d->cursor_;
1015 if (cur.getStatus(cmd, flag))
1020 // FIXME: This is a bit problematic because we don't check if this is
1021 // a document BufferView or not for these LFUNs. We probably have to
1022 // dispatch both to currentBufferView() and, if that fails,
1023 // to documentBufferView(); same as we do now for current Buffer and
1024 // document Buffer. Ideally those LFUN should go to Buffer as they
1025 // operate on the full Buffer and the cursor is only needed either for
1026 // an Undo record or to restore a cursor position. But we don't know
1027 // how to do that inside Buffer of course.
1028 case LFUN_BUFFER_PARAMS_APPLY:
1029 case LFUN_LAYOUT_MODULES_CLEAR:
1030 case LFUN_LAYOUT_MODULE_ADD:
1031 case LFUN_LAYOUT_RELOAD:
1032 case LFUN_TEXTCLASS_APPLY:
1033 case LFUN_TEXTCLASS_LOAD:
1034 flag.setEnabled(!buffer_.isReadonly());
1038 // We do not use the LyXAction flag for readonly because Undo sets the
1039 // buffer clean/dirty status by itself.
1040 flag.setEnabled(!buffer_.isReadonly() && buffer_.undo().hasUndoStack());
1043 // We do not use the LyXAction flag for readonly because Redo sets the
1044 // buffer clean/dirty status by itself.
1045 flag.setEnabled(!buffer_.isReadonly() && buffer_.undo().hasRedoStack());
1047 case LFUN_FILE_INSERT_PLAINTEXT_PARA:
1048 case LFUN_FILE_INSERT_PLAINTEXT: {
1049 docstring const fname = cmd.argument();
1050 if (!FileName::isAbsolute(to_utf8(fname))) {
1051 flag.message(_("Absolute filename expected."));
1054 flag.setEnabled(cur.inTexted());
1057 case LFUN_FILE_INSERT:
1058 case LFUN_BOOKMARK_SAVE:
1059 // FIXME: Actually, these LFUNS should be moved to Text
1060 flag.setEnabled(cur.inTexted());
1063 case LFUN_FONT_STATE:
1064 case LFUN_LABEL_INSERT:
1065 case LFUN_INFO_INSERT:
1066 case LFUN_PARAGRAPH_GOTO:
1067 case LFUN_NOTE_NEXT:
1068 case LFUN_REFERENCE_NEXT:
1069 case LFUN_WORD_FIND:
1070 case LFUN_WORD_FIND_FORWARD:
1071 case LFUN_WORD_FIND_BACKWARD:
1072 case LFUN_WORD_REPLACE:
1075 case LFUN_MARK_TOGGLE:
1076 case LFUN_SCREEN_RECENTER:
1077 case LFUN_SCREEN_SHOW_CURSOR:
1078 case LFUN_BIBTEX_DATABASE_ADD:
1079 case LFUN_BIBTEX_DATABASE_DEL:
1080 case LFUN_STATISTICS:
1081 case LFUN_BRANCH_ADD_INSERT:
1082 case LFUN_KEYMAP_OFF:
1083 case LFUN_KEYMAP_PRIMARY:
1084 case LFUN_KEYMAP_SECONDARY:
1085 case LFUN_KEYMAP_TOGGLE:
1086 flag.setEnabled(true);
1089 case LFUN_WORD_FINDADV: {
1090 FindAndReplaceOptions opt;
1091 istringstream iss(to_utf8(cmd.argument()));
1093 flag.setEnabled(opt.repl_buf_name.empty()
1094 || !buffer_.isReadonly());
1097 case LFUN_LABEL_GOTO: {
1098 flag.setEnabled(!cmd.argument().empty()
1099 || getInsetByCode<InsetRef>(cur, REF_CODE));
1103 case LFUN_CHANGES_TRACK:
1104 flag.setEnabled(true);
1105 flag.setOnOff(buffer_.params().trackChanges);
1108 case LFUN_CHANGES_OUTPUT:
1109 flag.setEnabled(true);
1110 flag.setOnOff(buffer_.params().outputChanges);
1113 case LFUN_CHANGES_MERGE:
1114 case LFUN_CHANGE_NEXT:
1115 case LFUN_CHANGE_PREVIOUS:
1116 case LFUN_ALL_CHANGES_ACCEPT:
1117 case LFUN_ALL_CHANGES_REJECT:
1118 // TODO: context-sensitive enabling of LFUNs
1119 // In principle, these command should only be enabled if there
1120 // is a change in the document. However, without proper
1121 // optimizations, this will inevitably result in poor performance.
1122 flag.setEnabled(true);
1125 case LFUN_BUFFER_TOGGLE_COMPRESSION: {
1126 flag.setOnOff(buffer_.params().compressed);
1130 case LFUN_BUFFER_TOGGLE_OUTPUT_SYNC: {
1131 flag.setOnOff(buffer_.params().output_sync);
1135 case LFUN_SCREEN_UP:
1136 case LFUN_SCREEN_DOWN:
1138 case LFUN_SCREEN_UP_SELECT:
1139 case LFUN_SCREEN_DOWN_SELECT:
1140 case LFUN_INSET_FORALL:
1141 flag.setEnabled(true);
1144 case LFUN_LAYOUT_TABULAR:
1145 flag.setEnabled(cur.innerInsetOfType(TABULAR_CODE));
1149 flag.setEnabled(!cur.inset().forcePlainLayout(cur.idx()));
1152 case LFUN_LAYOUT_PARAGRAPH:
1153 flag.setEnabled(cur.inset().allowParagraphCustomization(cur.idx()));
1156 case LFUN_DIALOG_SHOW_NEW_INSET:
1157 // FIXME: this is wrong, but I do not understand the
1159 if (cur.inset().lyxCode() == CAPTION_CODE)
1160 return cur.inset().getStatus(cur, cmd, flag);
1161 // FIXME we should consider passthru paragraphs too.
1162 flag.setEnabled(!(cur.inTexted() && cur.paragraph().isPassThru()));
1165 case LFUN_CITATION_INSERT: {
1166 FuncRequest fr(LFUN_INSET_INSERT, "citation");
1167 // FIXME: This could turn in a recursive hell.
1168 // Shouldn't we use Buffer::getStatus() instead?
1169 flag.setEnabled(lyx::getStatus(fr).enabled());
1172 case LFUN_INSET_APPLY: {
1173 string const name = cmd.getArg(0);
1174 Inset * inset = editedInset(name);
1176 FuncRequest fr(LFUN_INSET_MODIFY, cmd.argument());
1177 if (!inset->getStatus(cur, fr, flag)) {
1178 // Every inset is supposed to handle this
1179 LASSERT(false, break);
1182 FuncRequest fr(LFUN_INSET_INSERT, cmd.argument());
1183 flag = lyx::getStatus(fr);
1188 // FIXME We do not really want this here, but at present we need to
1189 // handle their dispatch here, for reasons explained there, so we'll
1190 // handle this here, too, for consistency.
1191 case LFUN_BRANCH_ACTIVATE:
1192 case LFUN_BRANCH_DEACTIVATE:
1193 case LFUN_BRANCH_MASTER_ACTIVATE:
1194 case LFUN_BRANCH_MASTER_DEACTIVATE: {
1195 bool const master = (cmd.action() == LFUN_BRANCH_MASTER_ACTIVATE
1196 || cmd.action() == LFUN_BRANCH_MASTER_DEACTIVATE);
1197 BranchList const & branchList = master ? buffer().masterBuffer()->params().branchlist()
1198 : buffer().params().branchlist();
1199 docstring const branchName = cmd.argument();
1200 flag.setEnabled(!branchName.empty() && branchList.find(branchName));
1212 Inset * BufferView::editedInset(string const & name) const
1214 map<string, Inset *>::const_iterator it = d->edited_insets_.find(name);
1215 return it == d->edited_insets_.end() ? 0 : it->second;
1219 void BufferView::editInset(string const & name, Inset * inset)
1221 d->edited_insets_[name] = inset;
1225 void BufferView::dispatch(FuncRequest const & cmd, DispatchResult & dr)
1227 LYXERR(Debug::ACTION, "BufferView::dispatch: cmd: " << cmd);
1229 string const argument = to_utf8(cmd.argument());
1230 Cursor & cur = d->cursor_;
1232 // Don't dispatch function that does not apply to internal buffers.
1233 if (buffer_.isInternal()
1234 && lyxaction.funcHasFlag(cmd.action(), LyXAction::NoInternal))
1237 // We'll set this back to false if need be.
1238 bool dispatched = true;
1239 buffer_.undo().beginUndoGroup();
1241 FuncCode const act = cmd.action();
1244 case LFUN_BUFFER_PARAMS_APPLY: {
1245 DocumentClassConstPtr olddc = buffer_.params().documentClassPtr();
1246 cur.recordUndoFullDocument();
1247 istringstream ss(to_utf8(cmd.argument()));
1250 int const unknown_tokens = buffer_.readHeader(lex);
1251 if (unknown_tokens != 0) {
1252 LYXERR0("Warning in LFUN_BUFFER_PARAMS_APPLY!\n"
1253 << unknown_tokens << " unknown token"
1254 << (unknown_tokens == 1 ? "" : "s"));
1256 updateDocumentClass(olddc);
1258 // We are most certainly here because of a change in the document
1259 // It is then better to make sure that all dialogs are in sync with
1260 // current document settings.
1261 dr.screenUpdate(Update::Force | Update::FitCursor);
1262 dr.forceBufferUpdate();
1266 case LFUN_LAYOUT_MODULES_CLEAR: {
1267 cur.recordUndoFullDocument();
1268 buffer_.params().clearLayoutModules();
1269 makeDocumentClass();
1270 dr.screenUpdate(Update::Force);
1271 dr.forceBufferUpdate();
1275 case LFUN_LAYOUT_MODULE_ADD: {
1276 BufferParams const & params = buffer_.params();
1277 if (!params.moduleCanBeAdded(argument)) {
1278 LYXERR0("Module `" << argument <<
1279 "' cannot be added due to failed requirements or "
1280 "conflicts with installed modules.");
1283 cur.recordUndoFullDocument();
1284 buffer_.params().addLayoutModule(argument);
1285 makeDocumentClass();
1286 dr.screenUpdate(Update::Force);
1287 dr.forceBufferUpdate();
1291 case LFUN_TEXTCLASS_APPLY: {
1292 // since this shortcircuits, the second call is made only if
1294 bool const success =
1295 LayoutFileList::get().load(argument, buffer_.temppath()) ||
1296 LayoutFileList::get().load(argument, buffer_.filePath());
1298 docstring s = bformat(_("The document class `%1$s' "
1299 "could not be loaded."), from_utf8(argument));
1300 frontend::Alert::error(_("Could not load class"), s);
1304 LayoutFile const * old_layout = buffer_.params().baseClass();
1305 LayoutFile const * new_layout = &(LayoutFileList::get()[argument]);
1307 if (old_layout == new_layout)
1311 // Save the old, possibly modular, layout for use in conversion.
1312 cur.recordUndoFullDocument();
1313 buffer_.params().setBaseClass(argument);
1314 makeDocumentClass();
1315 dr.screenUpdate(Update::Force);
1316 dr.forceBufferUpdate();
1320 case LFUN_TEXTCLASS_LOAD: {
1321 // since this shortcircuits, the second call is made only if
1323 bool const success =
1324 LayoutFileList::get().load(argument, buffer_.temppath()) ||
1325 LayoutFileList::get().load(argument, buffer_.filePath());
1327 docstring s = bformat(_("The document class `%1$s' "
1328 "could not be loaded."), from_utf8(argument));
1329 frontend::Alert::error(_("Could not load class"), s);
1334 case LFUN_LAYOUT_RELOAD: {
1335 LayoutFileIndex bc = buffer_.params().baseClassID();
1336 LayoutFileList::get().reset(bc);
1337 buffer_.params().setBaseClass(bc);
1338 makeDocumentClass();
1339 dr.screenUpdate(Update::Force);
1340 dr.forceBufferUpdate();
1345 dr.setMessage(_("Undo"));
1346 cur.clearSelection();
1347 if (!cur.textUndo())
1348 dr.setMessage(_("No further undo information"));
1350 dr.screenUpdate(Update::Force | Update::FitCursor);
1351 dr.forceBufferUpdate();
1355 dr.setMessage(_("Redo"));
1356 cur.clearSelection();
1357 if (!cur.textRedo())
1358 dr.setMessage(_("No further redo information"));
1360 dr.screenUpdate(Update::Force | Update::FitCursor);
1361 dr.forceBufferUpdate();
1364 case LFUN_FONT_STATE:
1365 dr.setMessage(cur.currentState());
1368 case LFUN_BOOKMARK_SAVE:
1369 saveBookmark(convert<unsigned int>(to_utf8(cmd.argument())));
1372 case LFUN_LABEL_GOTO: {
1373 docstring label = cmd.argument();
1374 if (label.empty()) {
1376 getInsetByCode<InsetRef>(cur, REF_CODE);
1378 label = inset->getParam("reference");
1379 // persistent=false: use temp_bookmark
1383 if (!label.empty()) {
1385 // at the moment, this is redundant, since gotoLabel will
1386 // eventually call LFUN_PARAGRAPH_GOTO, but it seems best
1388 dr.screenUpdate(Update::Force | Update::FitCursor);
1393 case LFUN_PARAGRAPH_GOTO: {
1394 int const id = convert<int>(cmd.getArg(0));
1395 int const pos = convert<int>(cmd.getArg(1));
1397 for (Buffer * b = &buffer_; i == 0 || b != &buffer_;
1398 b = theBufferList().next(b)) {
1400 DocIterator dit = b->getParFromID(id);
1402 LYXERR(Debug::INFO, "No matching paragraph found! [" << id << "].");
1406 LYXERR(Debug::INFO, "Paragraph " << dit.paragraph().id()
1407 << " found in buffer `"
1408 << b->absFileName() << "'.");
1410 if (b == &buffer_) {
1414 dr.screenUpdate(Update::Force | Update::FitCursor);
1416 // Switch to other buffer view and resend cmd
1417 lyx::dispatch(FuncRequest(
1418 LFUN_BUFFER_SWITCH, b->absFileName()));
1426 case LFUN_NOTE_NEXT:
1427 gotoInset(this, NOTE_CODE, false);
1430 case LFUN_REFERENCE_NEXT: {
1431 vector<InsetCode> tmp;
1432 tmp.push_back(LABEL_CODE);
1433 tmp.push_back(REF_CODE);
1434 gotoInset(this, tmp, true);
1438 case LFUN_CHANGES_TRACK:
1439 buffer_.params().trackChanges = !buffer_.params().trackChanges;
1442 case LFUN_CHANGES_OUTPUT:
1443 buffer_.params().outputChanges = !buffer_.params().outputChanges;
1444 if (buffer_.params().outputChanges) {
1445 bool dvipost = LaTeXFeatures::isAvailable("dvipost");
1446 bool xcolorulem = LaTeXFeatures::isAvailable("ulem") &&
1447 LaTeXFeatures::isAvailable("xcolor");
1449 if (!dvipost && !xcolorulem) {
1450 Alert::warning(_("Changes not shown in LaTeX output"),
1451 _("Changes will not be highlighted in LaTeX output, "
1452 "because neither dvipost nor xcolor/ulem are installed.\n"
1453 "Please install these packages or redefine "
1454 "\\lyxadded and \\lyxdeleted in the LaTeX preamble."));
1455 } else if (!xcolorulem) {
1456 Alert::warning(_("Changes not shown in LaTeX output"),
1457 _("Changes will not be highlighted in LaTeX output "
1458 "when using pdflatex, because xcolor and ulem are not installed.\n"
1459 "Please install both packages or redefine "
1460 "\\lyxadded and \\lyxdeleted in the LaTeX preamble."));
1465 case LFUN_CHANGE_NEXT:
1466 findNextChange(this);
1467 // FIXME: Move this LFUN to Buffer so that we don't have to do this:
1468 dr.screenUpdate(Update::Force | Update::FitCursor);
1471 case LFUN_CHANGE_PREVIOUS:
1472 findPreviousChange(this);
1473 // FIXME: Move this LFUN to Buffer so that we don't have to do this:
1474 dr.screenUpdate(Update::Force | Update::FitCursor);
1477 case LFUN_CHANGES_MERGE:
1478 if (findNextChange(this) || findPreviousChange(this)) {
1479 dr.screenUpdate(Update::Force | Update::FitCursor);
1480 dr.forceBufferUpdate();
1481 showDialog("changes");
1485 case LFUN_ALL_CHANGES_ACCEPT:
1486 // select complete document
1488 cur.selHandle(true);
1489 buffer_.text().cursorBottom(cur);
1490 // accept everything in a single step to support atomic undo
1491 buffer_.text().acceptOrRejectChanges(cur, Text::ACCEPT);
1493 // FIXME: Move this LFUN to Buffer so that we don't have to do this:
1494 dr.screenUpdate(Update::Force | Update::FitCursor);
1495 dr.forceBufferUpdate();
1498 case LFUN_ALL_CHANGES_REJECT:
1499 // select complete document
1501 cur.selHandle(true);
1502 buffer_.text().cursorBottom(cur);
1503 // reject everything in a single step to support atomic undo
1504 // Note: reject does not work recursively; the user may have to repeat the operation
1505 buffer_.text().acceptOrRejectChanges(cur, Text::REJECT);
1507 // FIXME: Move this LFUN to Buffer so that we don't have to do this:
1508 dr.screenUpdate(Update::Force | Update::FitCursor);
1509 dr.forceBufferUpdate();
1512 case LFUN_WORD_FIND_FORWARD:
1513 case LFUN_WORD_FIND_BACKWARD: {
1514 static docstring last_search;
1515 docstring searched_string;
1517 if (!cmd.argument().empty()) {
1518 last_search = cmd.argument();
1519 searched_string = cmd.argument();
1521 searched_string = last_search;
1524 if (searched_string.empty())
1527 bool const fw = act == LFUN_WORD_FIND_FORWARD;
1528 docstring const data =
1529 find2string(searched_string, true, false, fw);
1530 bool found = lyxfind(this, FuncRequest(LFUN_WORD_FIND, data));
1532 dr.screenUpdate(Update::Force | Update::FitCursor);
1536 case LFUN_WORD_FIND: {
1537 FuncRequest req = cmd;
1538 if (cmd.argument().empty() && !d->search_request_cache_.argument().empty())
1539 req = d->search_request_cache_;
1540 if (req.argument().empty()) {
1541 lyx::dispatch(FuncRequest(LFUN_DIALOG_SHOW, "findreplace"));
1544 if (lyxfind(this, req))
1545 dr.screenUpdate(Update::Force | Update::FitCursor);
1547 message(_("String not found!"));
1548 d->search_request_cache_ = req;
1552 case LFUN_WORD_REPLACE: {
1553 bool has_deleted = false;
1554 if (cur.selection()) {
1555 DocIterator beg = cur.selectionBegin();
1556 DocIterator end = cur.selectionEnd();
1557 if (beg.pit() == end.pit()) {
1558 for (pos_type p = beg.pos() ; p < end.pos() ; ++p) {
1559 if (!cur.inMathed() && cur.paragraph().isDeleted(p)) {
1566 if (lyxreplace(this, cmd, has_deleted)) {
1567 dr.forceBufferUpdate();
1568 dr.screenUpdate(Update::Force | Update::FitCursor);
1573 case LFUN_WORD_FINDADV: {
1574 FindAndReplaceOptions opt;
1575 istringstream iss(to_utf8(cmd.argument()));
1577 if (findAdv(this, opt)) {
1578 dr.screenUpdate(Update::Force | Update::FitCursor);
1589 cur.clearSelection();
1590 dr.setMessage(from_utf8(N_("Mark off")));
1594 cur.clearSelection();
1596 dr.setMessage(from_utf8(N_("Mark on")));
1599 case LFUN_MARK_TOGGLE:
1600 cur.setSelection(false);
1603 dr.setMessage(from_utf8(N_("Mark removed")));
1606 dr.setMessage(from_utf8(N_("Mark set")));
1611 case LFUN_SCREEN_SHOW_CURSOR:
1615 case LFUN_SCREEN_RECENTER:
1619 case LFUN_BIBTEX_DATABASE_ADD: {
1620 Cursor tmpcur = cur;
1621 findInset(tmpcur, BIBTEX_CODE, false);
1622 InsetBibtex * inset = getInsetByCode<InsetBibtex>(tmpcur,
1625 if (inset->addDatabase(cmd.argument())) {
1626 buffer_.invalidateBibfileCache();
1627 dr.forceBufferUpdate();
1633 case LFUN_BIBTEX_DATABASE_DEL: {
1634 Cursor tmpcur = cur;
1635 findInset(tmpcur, BIBTEX_CODE, false);
1636 InsetBibtex * inset = getInsetByCode<InsetBibtex>(tmpcur,
1639 if (inset->delDatabase(cmd.argument())) {
1640 buffer_.invalidateBibfileCache();
1641 dr.forceBufferUpdate();
1647 case LFUN_STATISTICS: {
1648 DocIterator from, to;
1649 if (cur.selection()) {
1650 from = cur.selectionBegin();
1651 to = cur.selectionEnd();
1653 from = doc_iterator_begin(&buffer_);
1654 to = doc_iterator_end(&buffer_);
1656 buffer_.updateStatistics(from, to);
1657 int const words = buffer_.wordCount();
1658 int const chars = buffer_.charCount(false);
1659 int const chars_blanks = buffer_.charCount(true);
1661 if (cur.selection())
1662 message = _("Statistics for the selection:");
1664 message = _("Statistics for the document:");
1667 message += bformat(_("%1$d words"), words);
1669 message += _("One word");
1671 if (chars_blanks != 1)
1672 message += bformat(_("%1$d characters (including blanks)"),
1675 message += _("One character (including blanks)");
1678 message += bformat(_("%1$d characters (excluding blanks)"),
1681 message += _("One character (excluding blanks)");
1683 Alert::information(_("Statistics"), message);
1687 case LFUN_BUFFER_TOGGLE_COMPRESSION:
1688 // turn compression on/off
1689 buffer_.params().compressed = !buffer_.params().compressed;
1692 case LFUN_BUFFER_TOGGLE_OUTPUT_SYNC:
1693 buffer_.params().output_sync = !buffer_.params().output_sync;
1696 case LFUN_SCREEN_UP:
1697 case LFUN_SCREEN_DOWN: {
1698 Point p = getPos(cur);
1699 // This code has been commented out to enable to scroll down a
1700 // document, even if there are large insets in it (see bug #5465).
1701 /*if (p.y_ < 0 || p.y_ > height_) {
1702 // The cursor is off-screen so recenter before proceeding.
1706 int const scrolled = scroll(act == LFUN_SCREEN_UP
1707 ? -height_ : height_);
1708 if (act == LFUN_SCREEN_UP && scrolled > -height_)
1710 if (act == LFUN_SCREEN_DOWN && scrolled < height_)
1711 p = Point(width_, height_);
1713 bool const in_texted = cur.inTexted();
1714 cur.setCursor(doc_iterator_begin(cur.buffer()));
1715 cur.selHandle(false);
1716 buffer_.changed(true);
1717 updateHoveredInset();
1719 d->text_metrics_[&buffer_.text()].editXY(cur, p.x_, p.y_,
1720 true, act == LFUN_SCREEN_UP);
1721 //FIXME: what to do with cur.x_target()?
1722 bool update = in_texted && cur.bv().checkDepm(cur, old);
1725 if (update || cur.mark())
1726 dr.screenUpdate(Update::Force | Update::FitCursor);
1728 dr.forceBufferUpdate();
1733 string const scroll_type = cmd.getArg(0);
1734 int scroll_step = 0;
1735 if (scroll_type == "line")
1736 scroll_step = d->scrollbarParameters_.single_step;
1737 else if (scroll_type == "page")
1738 scroll_step = d->scrollbarParameters_.page_step;
1741 string const scroll_quantity = cmd.getArg(1);
1742 if (scroll_quantity == "up")
1743 scrollUp(scroll_step);
1744 else if (scroll_quantity == "down")
1745 scrollDown(scroll_step);
1747 int const scroll_value = convert<int>(scroll_quantity);
1749 scroll(scroll_step * scroll_value);
1751 buffer_.changed(true);
1752 updateHoveredInset();
1753 dr.forceBufferUpdate();
1757 case LFUN_SCREEN_UP_SELECT: {
1758 // FIXME: why is the algorithm different from LFUN_SCREEN_UP?
1759 cur.selHandle(true);
1760 if (isTopScreen()) {
1761 lyx::dispatch(FuncRequest(LFUN_BUFFER_BEGIN_SELECT));
1765 int y = getPos(cur).y_;
1766 int const ymin = y - height_ + defaultRowHeight();
1767 while (y > ymin && cur.up())
1771 dr.screenUpdate(Update::SinglePar | Update::FitCursor);
1775 case LFUN_SCREEN_DOWN_SELECT: {
1776 // FIXME: why is the algorithm different from LFUN_SCREEN_DOWN?
1777 cur.selHandle(true);
1778 if (isBottomScreen()) {
1779 lyx::dispatch(FuncRequest(LFUN_BUFFER_END_SELECT));
1783 int y = getPos(cur).y_;
1784 int const ymax = y + height_ - defaultRowHeight();
1785 while (y < ymax && cur.down())
1789 dr.screenUpdate(Update::SinglePar | Update::FitCursor);
1794 // This would be in Buffer class if only Cursor did not
1795 // require a bufferview
1796 case LFUN_INSET_FORALL: {
1797 docstring const name = from_utf8(cmd.getArg(0));
1798 string const commandstr = cmd.getLongArg(1);
1799 FuncRequest const fr = lyxaction.lookupFunc(commandstr);
1801 // an arbitrary number to limit number of iterations
1802 const int max_iter = 100000;
1804 Cursor & cur = d->cursor_;
1805 Cursor const savecur = cur;
1807 if (!cur.nextInset())
1809 cur.beginUndoGroup();
1810 while(cur && iterations < max_iter) {
1811 Inset * ins = cur.nextInset();
1814 docstring insname = ins->layoutName();
1815 while (!insname.empty()) {
1816 if (insname == name || name == from_utf8("*")) {
1818 lyx::dispatch(fr, dr);
1822 size_t const i = insname.rfind(':');
1823 if (i == string::npos)
1825 insname = insname.substr(0, i);
1832 dr.screenUpdate(Update::Force);
1833 dr.forceBufferUpdate();
1835 if (iterations >= max_iter) {
1837 dr.setMessage(bformat(_("`inset-forall' interrupted because number of actions is larger than %1$d"), max_iter));
1839 dr.setMessage(bformat(_("Applied \"%1$s\" to %2$d insets"), from_utf8(commandstr), iterations));
1844 case LFUN_BRANCH_ADD_INSERT: {
1845 docstring branch_name = from_utf8(cmd.getArg(0));
1846 if (branch_name.empty())
1847 if (!Alert::askForText(branch_name, _("Branch name")) ||
1848 branch_name.empty())
1851 DispatchResult drtmp;
1852 buffer_.dispatch(FuncRequest(LFUN_BRANCH_ADD, branch_name), drtmp);
1853 if (drtmp.error()) {
1854 Alert::warning(_("Branch already exists"), drtmp.message());
1857 BranchList & branch_list = buffer_.params().branchlist();
1858 vector<docstring> const branches =
1859 getVectorFromString(branch_name, branch_list.separator());
1860 for (vector<docstring>::const_iterator it = branches.begin();
1861 it != branches.end(); ++it) {
1863 lyx::dispatch(FuncRequest(LFUN_BRANCH_INSERT, branch_name));
1868 case LFUN_KEYMAP_OFF:
1869 getIntl().keyMapOn(false);
1872 case LFUN_KEYMAP_PRIMARY:
1873 getIntl().keyMapPrim();
1876 case LFUN_KEYMAP_SECONDARY:
1877 getIntl().keyMapSec();
1880 case LFUN_KEYMAP_TOGGLE:
1881 getIntl().toggleKeyMap();
1884 case LFUN_DIALOG_SHOW_NEW_INSET: {
1885 string const name = cmd.getArg(0);
1886 string data = trim(to_utf8(cmd.argument()).substr(name.size()));
1887 if (decodeInsetParam(name, data, buffer_))
1888 lyx::dispatch(FuncRequest(LFUN_DIALOG_SHOW, name + " " + data));
1890 lyxerr << "Inset type '" << name <<
1891 "' not recognized in LFUN_DIALOG_SHOW_NEW_INSET" << endl;
1895 case LFUN_CITATION_INSERT: {
1896 if (argument.empty()) {
1897 lyx::dispatch(FuncRequest(LFUN_DIALOG_SHOW_NEW_INSET, "citation"));
1900 // we can have one optional argument, delimited by '|'
1901 // citation-insert <key>|<text_before>
1902 // this should be enhanced to also support text_after
1903 // and citation style
1904 string arg = argument;
1906 if (contains(argument, "|")) {
1907 arg = token(argument, '|', 0);
1908 opt1 = token(argument, '|', 1);
1910 InsetCommandParams icp(CITE_CODE);
1911 icp["key"] = from_utf8(arg);
1913 icp["before"] = from_utf8(opt1);
1914 string icstr = InsetCommand::params2string(icp);
1915 FuncRequest fr(LFUN_INSET_INSERT, icstr);
1920 case LFUN_INSET_APPLY: {
1921 string const name = cmd.getArg(0);
1922 Inset * inset = editedInset(name);
1924 FuncRequest fr(LFUN_INSET_INSERT, cmd.argument());
1928 // put cursor in front of inset.
1929 if (!setCursorFromInset(inset)) {
1930 LASSERT(false, break);
1933 FuncRequest fr(LFUN_INSET_MODIFY, cmd.argument());
1934 inset->dispatch(cur, fr);
1935 dr.screenUpdate(cur.result().screenUpdate());
1936 if (cur.result().needBufferUpdate())
1937 dr.forceBufferUpdate();
1942 // The change of language of buffer belongs to the Buffer class.
1943 // We have to do it here because we need a cursor for Undo.
1944 // When Undo::recordUndoBufferParams() is implemented someday
1945 // LFUN_BUFFER_LANGUAGE should be handled by the Buffer class.
1946 case LFUN_BUFFER_LANGUAGE: {
1947 Language const * oldL = buffer_.params().language;
1948 Language const * newL = languages.getLanguage(argument);
1949 if (!newL || oldL == newL)
1951 if (oldL->rightToLeft() == newL->rightToLeft()) {
1952 cur.recordUndoFullDocument();
1953 buffer_.changeLanguage(oldL, newL);
1954 cur.setCurrentFont();
1955 dr.forceBufferUpdate();
1960 case LFUN_FILE_INSERT_PLAINTEXT_PARA:
1961 case LFUN_FILE_INSERT_PLAINTEXT: {
1962 bool const as_paragraph = (act == LFUN_FILE_INSERT_PLAINTEXT_PARA);
1963 string const fname = to_utf8(cmd.argument());
1964 if (!FileName::isAbsolute(fname))
1965 dr.setMessage(_("Absolute filename expected."));
1967 insertPlaintextFile(FileName(fname), as_paragraph);
1971 // FIXME We do not really want this here, but it has to be at present
1972 // because we need a cursor for the recordUndoFullDocument call. What
1973 // we would really like is a recordUndoBufferParams call that did not
1974 // need a cursor, but we do not have that yet.
1975 // So, if this does get fixed, this code can be moved back to Buffer.cpp,
1976 // and the corresponding code in getStatus() should be moved back, too.
1977 case LFUN_BRANCH_ACTIVATE:
1978 case LFUN_BRANCH_DEACTIVATE:
1979 case LFUN_BRANCH_MASTER_ACTIVATE:
1980 case LFUN_BRANCH_MASTER_DEACTIVATE: {
1981 bool const master = (cmd.action() == LFUN_BRANCH_MASTER_ACTIVATE
1982 || cmd.action() == LFUN_BRANCH_MASTER_DEACTIVATE);
1983 Buffer * buf = master ? const_cast<Buffer *>(buffer().masterBuffer())
1986 docstring const branch_name = cmd.argument();
1987 // the case without a branch name is handled elsewhere
1988 if (branch_name.empty()) {
1992 Branch * branch = buf->params().branchlist().find(branch_name);
1994 LYXERR0("Branch " << branch_name << " does not exist.");
1996 docstring const msg =
1997 bformat(_("Branch \"%1$s\" does not exist."), branch_name);
2001 bool activate = (cmd.action() == LFUN_BRANCH_ACTIVATE
2002 || cmd.action() == LFUN_BRANCH_MASTER_ACTIVATE);
2003 if (branch->isSelected() != activate) {
2004 branch->setSelected(activate);
2005 cur.recordUndoFullDocument();
2007 dr.screenUpdate(Update::Force);
2008 dr.forceBufferUpdate();
2014 // OK, so try the Buffer itself...
2015 buffer_.dispatch(cmd, dr);
2016 dispatched = dr.dispatched();
2020 buffer_.undo().endUndoGroup();
2021 dr.dispatched(dispatched);
2025 docstring const BufferView::requestSelection()
2027 Cursor & cur = d->cursor_;
2029 LYXERR(Debug::SELECTION, "requestSelection: cur.selection: " << cur.selection());
2030 if (!cur.selection()) {
2031 d->xsel_cache_.set = false;
2035 LYXERR(Debug::SELECTION, "requestSelection: xsel_cache.set: " << d->xsel_cache_.set);
2036 if (!d->xsel_cache_.set ||
2037 cur.top() != d->xsel_cache_.cursor ||
2038 cur.realAnchor().top() != d->xsel_cache_.anchor)
2040 d->xsel_cache_.cursor = cur.top();
2041 d->xsel_cache_.anchor = cur.realAnchor().top();
2042 d->xsel_cache_.set = cur.selection();
2043 return cur.selectionAsString(false);
2049 void BufferView::clearSelection()
2051 d->cursor_.clearSelection();
2052 // Clear the selection buffer. Otherwise a subsequent
2053 // middle-mouse-button paste would use the selection buffer,
2054 // not the more current external selection.
2055 cap::clearSelection();
2056 d->xsel_cache_.set = false;
2057 // The buffer did not really change, but this causes the
2058 // redraw we need because we cleared the selection above.
2059 buffer_.changed(false);
2063 void BufferView::resize(int width, int height)
2065 // Update from work area
2069 // Clear the paragraph height cache.
2070 d->par_height_.clear();
2071 // Redo the metrics.
2076 Inset const * BufferView::getCoveringInset(Text const & text,
2079 TextMetrics & tm = d->text_metrics_[&text];
2080 Inset * inset = tm.checkInsetHit(x, y);
2084 if (!inset->descendable(*this))
2085 // No need to go further down if the inset is not
2089 size_t cell_number = inset->nargs();
2090 // Check all the inner cell.
2091 for (size_t i = 0; i != cell_number; ++i) {
2092 Text const * inner_text = inset->getText(i);
2095 Inset const * inset_deeper =
2096 getCoveringInset(*inner_text, x, y);
2098 return inset_deeper;
2106 void BufferView::updateHoveredInset() const
2108 // Get inset under mouse, if there is one.
2109 int const x = d->mouse_position_cache_.x_;
2110 int const y = d->mouse_position_cache_.y_;
2111 Inset const * covering_inset = getCoveringInset(buffer_.text(), x, y);
2113 d->clickable_inset_ = covering_inset && covering_inset->clickable(x, y);
2115 if (covering_inset == d->last_inset_)
2116 // Same inset, no need to do anything...
2119 bool need_redraw = false;
2120 if (d->last_inset_) {
2121 // Remove the hint on the last hovered inset (if any).
2122 need_redraw |= d->last_inset_->setMouseHover(this, false);
2126 if (covering_inset && covering_inset->setMouseHover(this, true)) {
2128 // Only the insets that accept the hover state, do
2129 // clear the last_inset_, so only set the last_inset_
2130 // member if the hovered setting is accepted.
2131 d->last_inset_ = covering_inset;
2135 LYXERR(Debug::PAINTING, "Mouse hover detected at: ("
2136 << d->mouse_position_cache_.x_ << ", "
2137 << d->mouse_position_cache_.y_ << ")");
2139 d->update_strategy_ = DecorationUpdate;
2141 // This event (moving without mouse click) is not passed further.
2142 // This should be changed if it is further utilized.
2143 buffer_.changed(false);
2148 void BufferView::clearLastInset(Inset * inset) const
2150 if (d->last_inset_ != inset) {
2151 LYXERR0("Wrong last_inset!");
2152 LASSERT(false, /**/);
2158 void BufferView::mouseEventDispatch(FuncRequest const & cmd0)
2160 //lyxerr << "[ cmd0 " << cmd0 << "]" << endl;
2162 // This is only called for mouse related events including
2163 // LFUN_FILE_OPEN generated by drag-and-drop.
2164 FuncRequest cmd = cmd0;
2166 Cursor old = cursor();
2168 cur.push(buffer_.inset());
2169 cur.setSelection(d->cursor_.selection());
2171 // Either the inset under the cursor or the
2172 // surrounding Text will handle this event.
2174 // make sure we stay within the screen...
2175 cmd.set_y(min(max(cmd.y(), -1), height_));
2177 d->mouse_position_cache_.x_ = cmd.x();
2178 d->mouse_position_cache_.y_ = cmd.y();
2180 if (cmd.action() == LFUN_MOUSE_MOTION && cmd.button() == mouse_button::none) {
2181 updateHoveredInset();
2185 // Build temporary cursor.
2186 Inset * inset = d->text_metrics_[&buffer_.text()].editXY(cur, cmd.x(), cmd.y());
2188 // Put anchor at the same position.
2191 cur.beginUndoGroup();
2193 // Try to dispatch to an non-editable inset near this position
2194 // via the temp cursor. If the inset wishes to change the real
2195 // cursor it has to do so explicitly by using
2196 // cur.bv().cursor() = cur; (or similar)
2198 inset->dispatch(cur, cmd);
2200 // Now dispatch to the temporary cursor. If the real cursor should
2201 // be modified, the inset's dispatch has to do so explicitly.
2202 if (!inset || !cur.result().dispatched())
2207 // Notify left insets
2209 bool badcursor = old.fixIfBroken() | cur.fixIfBroken();
2210 badcursor |= notifyCursorLeavesOrEnters(old, cur);
2212 cursor().fixIfBroken();
2215 // Do we have a selection?
2216 theSelection().haveSelection(cursor().selection());
2218 if (cur.needBufferUpdate()) {
2219 cur.clearBufferUpdate();
2220 buffer().updateBuffer();
2223 // If the command has been dispatched,
2224 if (cur.result().dispatched() || cur.result().screenUpdate())
2225 processUpdateFlags(cur.result().screenUpdate());
2229 int BufferView::minVisiblePart()
2231 return 2 * defaultRowHeight();
2235 int BufferView::scroll(int y)
2238 return scrollDown(y);
2240 return scrollUp(-y);
2245 int BufferView::scrollDown(int offset)
2247 Text * text = &buffer_.text();
2248 TextMetrics & tm = d->text_metrics_[text];
2249 int const ymax = height_ + offset;
2251 pair<pit_type, ParagraphMetrics const *> last = tm.last();
2252 int bottom_pos = last.second->position() + last.second->descent();
2253 if (lyxrc.scroll_below_document)
2254 bottom_pos += height_ - minVisiblePart();
2255 if (last.first + 1 == int(text->paragraphs().size())) {
2256 if (bottom_pos <= height_)
2258 offset = min(offset, bottom_pos - height_);
2261 if (bottom_pos > ymax)
2263 tm.newParMetricsDown();
2265 d->anchor_ypos_ -= offset;
2270 int BufferView::scrollUp(int offset)
2272 Text * text = &buffer_.text();
2273 TextMetrics & tm = d->text_metrics_[text];
2274 int ymin = - offset;
2276 pair<pit_type, ParagraphMetrics const *> first = tm.first();
2277 int top_pos = first.second->position() - first.second->ascent();
2278 if (first.first == 0) {
2281 offset = min(offset, - top_pos);
2286 tm.newParMetricsUp();
2288 d->anchor_ypos_ += offset;
2293 void BufferView::setCursorFromRow(int row)
2297 pit_type newpit = 0;
2298 pos_type newpos = 0;
2300 buffer_.texrow().getIdFromRow(row, tmpid, tmppos);
2302 bool posvalid = (tmpid != -1);
2304 // we need to make sure that the row and position
2305 // we got back are valid, because the buffer may well
2306 // have changed since we last generated the LaTeX.
2307 DocIterator const dit = buffer_.getParFromID(tmpid);
2308 if (dit == doc_iterator_end(&buffer_))
2312 // now have to check pos.
2314 Paragraph const & par = buffer_.text().getPar(newpit);
2315 if (newpos > par.size()) {
2316 LYXERR0("Requested position no longer valid.");
2317 newpos = par.size() - 1;
2322 frontend::Alert::error(_("Inverse Search Failed"),
2323 _("Invalid position requested by inverse search.\n"
2324 "You need to update the viewed document."));
2328 buffer_.text().setCursor(d->cursor_, newpit, newpos);
2329 d->cursor_.setSelection(false);
2330 d->cursor_.resetAnchor();
2335 bool BufferView::setCursorFromInset(Inset const * inset)
2337 // are we already there?
2338 if (cursor().nextInset() == inset)
2341 // Inset is not at cursor position. Find it in the document.
2344 while (cur && cur.nextInset() != inset)
2355 void BufferView::gotoLabel(docstring const & label)
2357 ListOfBuffers bufs = buffer().allRelatives();
2358 ListOfBuffers::iterator it = bufs.begin();
2359 for (; it != bufs.end(); ++it) {
2360 Buffer const * buf = *it;
2363 Toc & toc = buf->tocBackend().toc("label");
2364 TocIterator toc_it = toc.begin();
2365 TocIterator end = toc.end();
2366 for (; toc_it != end; ++toc_it) {
2367 if (label == toc_it->str()) {
2368 lyx::dispatch(toc_it->action());
2376 TextMetrics const & BufferView::textMetrics(Text const * t) const
2378 return const_cast<BufferView *>(this)->textMetrics(t);
2382 TextMetrics & BufferView::textMetrics(Text const * t)
2385 TextMetricsCache::iterator tmc_it = d->text_metrics_.find(t);
2386 if (tmc_it == d->text_metrics_.end()) {
2387 tmc_it = d->text_metrics_.insert(
2388 make_pair(t, TextMetrics(this, const_cast<Text *>(t)))).first;
2390 return tmc_it->second;
2394 ParagraphMetrics const & BufferView::parMetrics(Text const * t,
2397 return textMetrics(t).parMetrics(pit);
2401 int BufferView::workHeight() const
2407 void BufferView::setCursor(DocIterator const & dit)
2410 size_t const n = dit.depth();
2411 for (size_t i = 0; i < n; ++i)
2412 dit[i].inset().edit(d->cursor_, true);
2414 d->cursor_.setCursor(dit);
2415 d->cursor_.setSelection(false);
2417 // It seems on general grounds as if this is probably needed, but
2418 // it is not yet clear.
2419 // See bug #7394 and r38388.
2420 // d->cursor.resetAnchor();
2424 bool BufferView::checkDepm(Cursor & cur, Cursor & old)
2426 // Would be wrong to delete anything if we have a selection.
2427 if (cur.selection())
2430 bool need_anchor_change = false;
2431 bool changed = d->cursor_.text()->deleteEmptyParagraphMechanism(cur, old,
2432 need_anchor_change);
2434 if (need_anchor_change)
2442 cur.forceBufferUpdate();
2443 cur.screenUpdateFlags(Update::Force);
2448 bool BufferView::mouseSetCursor(Cursor & cur, bool select)
2450 LASSERT(&cur.bv() == this, /**/);
2453 // this event will clear selection so we save selection for
2454 // persistent selection
2455 cap::saveSelection(cursor());
2457 d->cursor_.macroModeClose();
2458 // If a macro has been finalized, the cursor might have been broken
2461 // Has the cursor just left the inset?
2462 bool const leftinset = (&d->cursor_.inset() != &cur.inset());
2464 d->cursor_.fixIfBroken();
2466 // FIXME: shift-mouse selection doesn't work well across insets.
2467 bool const do_selection =
2468 select && &d->cursor_.normalAnchor().inset() == &cur.inset();
2470 // do the dEPM magic if needed
2471 // FIXME: (1) move this to InsetText::notifyCursorLeaves?
2472 // FIXME: (2) if we had a working InsetText::notifyCursorLeaves,
2473 // the leftinset bool would not be necessary (badcursor instead).
2474 bool update = leftinset;
2475 if (!do_selection && d->cursor_.inTexted())
2476 update |= checkDepm(cur, d->cursor_);
2479 d->cursor_.resetAnchor();
2480 d->cursor_.setCursor(cur);
2481 d->cursor_.boundary(cur.boundary());
2483 d->cursor_.setSelection();
2485 d->cursor_.clearSelection();
2487 d->cursor_.finishUndo();
2488 d->cursor_.setCurrentFont();
2490 cur.forceBufferUpdate();
2495 void BufferView::putSelectionAt(DocIterator const & cur,
2496 int length, bool backwards)
2498 d->cursor_.clearSelection();
2504 d->cursor_.pos() += length;
2505 d->cursor_.setSelection(d->cursor_, -length);
2507 d->cursor_.setSelection(d->cursor_, length);
2512 bool BufferView::selectIfEmpty(DocIterator & cur)
2514 if (!cur.paragraph().empty())
2517 pit_type const beg_pit = cur.pit();
2519 // The paragraph associated to this item isn't
2520 // the first one, so it can be selected
2523 // We have to resort to select the space between the
2524 // end of this item and the begin of the next one
2528 // If it is the only item in the document,
2529 // nothing can be selected
2532 pit_type const end_pit = cur.pit();
2533 pos_type const end_pos = cur.pos();
2534 d->cursor_.clearSelection();
2536 d->cursor_.setCursor(cur);
2537 d->cursor_.pit() = beg_pit;
2538 d->cursor_.pos() = 0;
2539 d->cursor_.setSelection(false);
2540 d->cursor_.resetAnchor();
2541 d->cursor_.pit() = end_pit;
2542 d->cursor_.pos() = end_pos;
2543 d->cursor_.setSelection();
2548 Cursor & BufferView::cursor()
2554 Cursor const & BufferView::cursor() const
2560 pit_type BufferView::anchor_ref() const
2562 return d->anchor_pit_;
2566 bool BufferView::singleParUpdate()
2568 Text & buftext = buffer_.text();
2569 pit_type const bottom_pit = d->cursor_.bottom().pit();
2570 TextMetrics & tm = textMetrics(&buftext);
2571 int old_height = tm.parMetrics(bottom_pit).height();
2573 // make sure inline completion pointer is ok
2574 if (d->inlineCompletionPos_.fixIfBroken())
2575 d->inlineCompletionPos_ = DocIterator();
2577 // In Single Paragraph mode, rebreak only
2578 // the (main text, not inset!) paragraph containing the cursor.
2579 // (if this paragraph contains insets etc., rebreaking will
2580 // recursively descend)
2581 tm.redoParagraph(bottom_pit);
2582 ParagraphMetrics const & pm = tm.parMetrics(bottom_pit);
2583 if (pm.height() != old_height)
2584 // Paragraph height has changed so we cannot proceed to
2585 // the singlePar optimisation.
2588 d->update_strategy_ = SingleParUpdate;
2590 LYXERR(Debug::PAINTING, "\ny1: " << pm.position() - pm.ascent()
2591 << " y2: " << pm.position() + pm.descent()
2592 << " pit: " << bottom_pit
2593 << " singlepar: 1");
2598 void BufferView::updateMetrics()
2600 if (height_ == 0 || width_ == 0)
2603 Text & buftext = buffer_.text();
2604 pit_type const npit = int(buftext.paragraphs().size());
2606 // Clear out the position cache in case of full screen redraw,
2607 d->coord_cache_.clear();
2609 // Clear out paragraph metrics to avoid having invalid metrics
2610 // in the cache from paragraphs not relayouted below
2611 // The complete text metrics will be redone.
2612 d->text_metrics_.clear();
2614 TextMetrics & tm = textMetrics(&buftext);
2616 // make sure inline completion pointer is ok
2617 if (d->inlineCompletionPos_.fixIfBroken())
2618 d->inlineCompletionPos_ = DocIterator();
2620 if (d->anchor_pit_ >= npit)
2621 // The anchor pit must have been deleted...
2622 d->anchor_pit_ = npit - 1;
2624 // Rebreak anchor paragraph.
2625 tm.redoParagraph(d->anchor_pit_);
2626 ParagraphMetrics & anchor_pm = tm.par_metrics_[d->anchor_pit_];
2629 if (d->anchor_pit_ == 0) {
2630 int scrollRange = d->scrollbarParameters_.max - d->scrollbarParameters_.min;
2632 // Complete buffer visible? Then it's easy.
2633 if (scrollRange == 0)
2634 d->anchor_ypos_ = anchor_pm.ascent();
2636 // FIXME: Some clever handling needed to show
2637 // the _first_ paragraph up to the top if the cursor is
2638 // in the first line.
2640 anchor_pm.setPosition(d->anchor_ypos_);
2642 LYXERR(Debug::PAINTING, "metrics: "
2643 << " anchor pit = " << d->anchor_pit_
2644 << " anchor ypos = " << d->anchor_ypos_);
2646 // Redo paragraphs above anchor if necessary.
2647 int y1 = d->anchor_ypos_ - anchor_pm.ascent();
2648 // We are now just above the anchor paragraph.
2649 pit_type pit1 = d->anchor_pit_ - 1;
2650 for (; pit1 >= 0 && y1 >= 0; --pit1) {
2651 tm.redoParagraph(pit1);
2652 ParagraphMetrics & pm = tm.par_metrics_[pit1];
2654 // Save the paragraph position in the cache.
2659 // Redo paragraphs below the anchor if necessary.
2660 int y2 = d->anchor_ypos_ + anchor_pm.descent();
2661 // We are now just below the anchor paragraph.
2662 pit_type pit2 = d->anchor_pit_ + 1;
2663 for (; pit2 < npit && y2 <= height_; ++pit2) {
2664 tm.redoParagraph(pit2);
2665 ParagraphMetrics & pm = tm.par_metrics_[pit2];
2667 // Save the paragraph position in the cache.
2672 LYXERR(Debug::PAINTING, "Metrics: "
2673 << " anchor pit = " << d->anchor_pit_
2674 << " anchor ypos = " << d->anchor_ypos_
2677 << " pit1 = " << pit1
2678 << " pit2 = " << pit2);
2680 d->update_strategy_ = FullScreenUpdate;
2682 if (lyxerr.debugging(Debug::WORKAREA)) {
2683 LYXERR(Debug::WORKAREA, "BufferView::updateMetrics");
2684 d->coord_cache_.dump();
2689 void BufferView::insertLyXFile(FileName const & fname)
2691 LASSERT(d->cursor_.inTexted(), /**/);
2693 // Get absolute path of file and add ".lyx"
2694 // to the filename if necessary
2695 FileName filename = fileSearch(string(), fname.absFileName(), "lyx");
2697 docstring const disp_fn = makeDisplayPath(filename.absFileName());
2698 // emit message signal.
2699 message(bformat(_("Inserting document %1$s..."), disp_fn));
2702 Buffer buf(filename.absFileName(), false);
2703 if (buf.loadLyXFile() == Buffer::ReadSuccess) {
2704 ErrorList & el = buffer_.errorList("Parse");
2705 // Copy the inserted document error list into the current buffer one.
2706 el = buf.errorList("Parse");
2707 buffer_.undo().recordUndo(d->cursor_);
2708 cap::pasteParagraphList(d->cursor_, buf.paragraphs(),
2709 buf.params().documentClassPtr(), el);
2710 res = _("Document %1$s inserted.");
2712 res = _("Could not insert document %1$s");
2715 buffer_.changed(true);
2716 // emit message signal.
2717 message(bformat(res, disp_fn));
2721 Point BufferView::coordOffset(DocIterator const & dit) const
2727 // Addup contribution of nested insets, from inside to outside,
2728 // keeping the outer paragraph for a special handling below
2729 for (size_t i = dit.depth() - 1; i >= 1; --i) {
2730 CursorSlice const & sl = dit[i];
2734 // get relative position inside sl.inset()
2735 sl.inset().cursorPos(*this, sl, dit.boundary() && (i + 1 == dit.depth()), xx, yy);
2737 // Make relative position inside of the edited inset relative to sl.inset()
2741 // In case of an RTL inset, the edited inset will be positioned to the left
2744 bool boundary_i = dit.boundary() && i + 1 == dit.depth();
2745 bool rtl = textMetrics(sl.text()).isRTL(sl, boundary_i);
2750 // remember width for the case that sl.inset() is positioned in an RTL inset
2751 if (i && dit[i - 1].text()) {
2752 // If this Inset is inside a Text Inset, retrieve the Dimension
2753 // from the containing text instead of using Inset::dimension() which
2754 // might not be implemented.
2755 // FIXME (Abdel 23/09/2007): this is a bit messy because of the
2756 // elimination of Inset::dim_ cache. This coordOffset() method needs
2757 // to be rewritten in light of the new design.
2758 Dimension const & dim = parMetrics(dit[i - 1].text(),
2759 dit[i - 1].pit()).insetDimension(&sl.inset());
2762 Dimension const dim = sl.inset().dimension(*this);
2766 //lyxerr << "Cursor::getPos, i: "
2767 // << i << " x: " << xx << " y: " << y << endl;
2770 // Add contribution of initial rows of outermost paragraph
2771 CursorSlice const & sl = dit[0];
2772 TextMetrics const & tm = textMetrics(sl.text());
2773 ParagraphMetrics const & pm = tm.parMetrics(sl.pit());
2774 LASSERT(!pm.rows().empty(), /**/);
2775 y -= pm.rows()[0].ascent();
2777 // FIXME: document this mess
2779 if (sl.pos() > 0 && dit.depth() == 1) {
2781 if (pos && dit.boundary())
2783 // lyxerr << "coordOffset: boundary:" << dit.boundary() << " depth:" << dit.depth() << " pos:" << pos << " sl.pos:" << sl.pos() << endl;
2784 rend = pm.pos2row(pos);
2786 rend = pm.pos2row(sl.pos());
2788 size_t rend = pm.pos2row(sl.pos());
2790 for (size_t rit = 0; rit != rend; ++rit)
2791 y += pm.rows()[rit].height();
2792 y += pm.rows()[rend].ascent();
2794 TextMetrics const & bottom_tm = textMetrics(dit.bottom().text());
2796 // Make relative position from the nested inset now bufferview absolute.
2797 int xx = bottom_tm.cursorX(dit.bottom(), dit.boundary() && dit.depth() == 1);
2800 // In the RTL case place the nested inset at the left of the cursor in
2801 // the outer paragraph
2802 bool boundary_1 = dit.boundary() && 1 == dit.depth();
2803 bool rtl = bottom_tm.isRTL(dit.bottom(), boundary_1);
2811 Point BufferView::getPos(DocIterator const & dit) const
2813 if (!paragraphVisible(dit))
2814 return Point(-1, -1);
2816 CursorSlice const & bot = dit.bottom();
2817 TextMetrics const & tm = textMetrics(bot.text());
2819 // offset from outer paragraph
2820 Point p = coordOffset(dit);
2821 p.y_ += tm.parMetrics(bot.pit()).position();
2826 bool BufferView::paragraphVisible(DocIterator const & dit) const
2828 CursorSlice const & bot = dit.bottom();
2829 TextMetrics const & tm = textMetrics(bot.text());
2831 return tm.contains(bot.pit());
2835 void BufferView::cursorPosAndHeight(Point & p, int & h) const
2837 Cursor const & cur = cursor();
2838 Font const font = cur.getFont();
2839 frontend::FontMetrics const & fm = theFontMetrics(font);
2840 int const asc = fm.maxAscent();
2841 int const des = fm.maxDescent();
2848 bool BufferView::cursorInView(Point const & p, int h) const
2850 Cursor const & cur = cursor();
2851 // does the cursor touch the screen ?
2852 if (p.y_ + h < 0 || p.y_ >= workHeight() || !paragraphVisible(cur))
2858 void BufferView::draw(frontend::Painter & pain)
2860 if (height_ == 0 || width_ == 0)
2862 LYXERR(Debug::PAINTING, "\t\t*** START DRAWING ***");
2864 Text & text = buffer_.text();
2865 TextMetrics const & tm = d->text_metrics_[&text];
2866 int const y = tm.first().second->position();
2867 PainterInfo pi(this, pain);
2869 switch (d->update_strategy_) {
2871 case NoScreenUpdate:
2872 // If no screen painting is actually needed, only some the different
2873 // coordinates of insets and paragraphs needs to be updated.
2874 pi.full_repaint = true;
2875 pi.pain.setDrawingEnabled(false);
2879 case SingleParUpdate:
2880 pi.full_repaint = false;
2881 // In general, only the current row of the outermost paragraph
2882 // will be redrawn. Particular cases where selection spans
2883 // multiple paragraph are correctly detected in TextMetrics.
2887 case DecorationUpdate:
2888 // FIXME: We should also distinguish DecorationUpdate to avoid text
2889 // drawing if possible. This is not possible to do easily right now
2890 // because of the single backing pixmap.
2892 case FullScreenUpdate:
2893 // The whole screen, including insets, will be refreshed.
2894 pi.full_repaint = true;
2896 // Clear background.
2897 pain.fillRectangle(0, 0, width_, height_,
2898 pi.backgroundColor(&buffer_.inset()));
2903 // and possibly grey out below
2904 pair<pit_type, ParagraphMetrics const *> lastpm = tm.last();
2905 int const y2 = lastpm.second->position() + lastpm.second->descent();
2908 Color color = buffer().isInternal()
2909 ? Color_background : Color_bottomarea;
2910 pain.fillRectangle(0, y2, width_, height_ - y2, color);
2914 LYXERR(Debug::PAINTING, "\n\t\t*** END DRAWING ***");
2916 // The scrollbar needs an update.
2919 // Normalize anchor for next time
2920 pair<pit_type, ParagraphMetrics const *> firstpm = tm.first();
2921 pair<pit_type, ParagraphMetrics const *> lastpm = tm.last();
2922 for (pit_type pit = firstpm.first; pit <= lastpm.first; ++pit) {
2923 ParagraphMetrics const & pm = tm.parMetrics(pit);
2924 if (pm.position() + pm.descent() > 0) {
2925 d->anchor_pit_ = pit;
2926 d->anchor_ypos_ = pm.position();
2930 LYXERR(Debug::PAINTING, "Found new anchor pit = " << d->anchor_pit_
2931 << " anchor ypos = " << d->anchor_ypos_);
2935 void BufferView::message(docstring const & msg)
2938 d->gui_->message(msg);
2942 void BufferView::showDialog(string const & name)
2945 d->gui_->showDialog(name, string());
2949 void BufferView::showDialog(string const & name,
2950 string const & data, Inset * inset)
2953 d->gui_->showDialog(name, data, inset);
2957 void BufferView::updateDialog(string const & name, string const & data)
2960 d->gui_->updateDialog(name, data);
2964 void BufferView::setGuiDelegate(frontend::GuiBufferViewDelegate * gui)
2970 // FIXME: Move this out of BufferView again
2971 docstring BufferView::contentsOfPlaintextFile(FileName const & fname)
2973 if (!fname.isReadableFile()) {
2974 docstring const error = from_ascii(strerror(errno));
2975 docstring const file = makeDisplayPath(fname.absFileName(), 50);
2976 docstring const text =
2977 bformat(_("Could not read the specified document\n"
2978 "%1$s\ndue to the error: %2$s"), file, error);
2979 Alert::error(_("Could not read file"), text);
2983 if (!fname.isReadableFile()) {
2984 docstring const file = makeDisplayPath(fname.absFileName(), 50);
2985 docstring const text =
2986 bformat(_("%1$s\n is not readable."), file);
2987 Alert::error(_("Could not open file"), text);
2991 // FIXME UNICODE: We don't know the encoding of the file
2992 docstring file_content = fname.fileContents("UTF-8");
2993 if (file_content.empty()) {
2994 Alert::error(_("Reading not UTF-8 encoded file"),
2995 _("The file is not UTF-8 encoded.\n"
2996 "It will be read as local 8Bit-encoded.\n"
2997 "If this does not give the correct result\n"
2998 "then please change the encoding of the file\n"
2999 "to UTF-8 with a program other than LyX.\n"));
3000 file_content = fname.fileContents("local8bit");
3003 return normalize_c(file_content);
3007 void BufferView::insertPlaintextFile(FileName const & f, bool asParagraph)
3009 docstring const tmpstr = contentsOfPlaintextFile(f);
3014 Cursor & cur = cursor();
3015 cap::replaceSelection(cur);
3016 buffer_.undo().recordUndo(cur);
3018 cur.innerText()->insertStringAsParagraphs(cur, tmpstr, cur.current_font);
3020 cur.innerText()->insertStringAsLines(cur, tmpstr, cur.current_font);
3022 buffer_.changed(true);
3026 docstring const & BufferView::inlineCompletion() const
3028 return d->inlineCompletion_;
3032 size_t const & BufferView::inlineCompletionUniqueChars() const
3034 return d->inlineCompletionUniqueChars_;
3038 DocIterator const & BufferView::inlineCompletionPos() const
3040 return d->inlineCompletionPos_;
3044 void BufferView::resetInlineCompletionPos()
3046 d->inlineCompletionPos_ = DocIterator();
3050 bool samePar(DocIterator const & a, DocIterator const & b)
3052 if (a.empty() && b.empty())
3054 if (a.empty() || b.empty())
3056 if (a.depth() != b.depth())
3058 return &a.innerParagraph() == &b.innerParagraph();
3062 void BufferView::setInlineCompletion(Cursor const & cur, DocIterator const & pos,
3063 docstring const & completion, size_t uniqueChars)
3065 uniqueChars = min(completion.size(), uniqueChars);
3066 bool changed = d->inlineCompletion_ != completion
3067 || d->inlineCompletionUniqueChars_ != uniqueChars;
3068 bool singlePar = true;
3069 d->inlineCompletion_ = completion;
3070 d->inlineCompletionUniqueChars_ = min(completion.size(), uniqueChars);
3072 //lyxerr << "setInlineCompletion pos=" << pos << " completion=" << completion << " uniqueChars=" << uniqueChars << std::endl;
3075 DocIterator const & old = d->inlineCompletionPos_;
3077 //lyxerr << "inlineCompletionPos changed" << std::endl;
3078 // old or pos are in another paragraph?
3079 if ((!samePar(cur, pos) && !pos.empty())
3080 || (!samePar(cur, old) && !old.empty())) {
3082 //lyxerr << "different paragraph" << std::endl;
3084 d->inlineCompletionPos_ = pos;
3089 if (singlePar && !(cur.result().screenUpdate() & Update::Force))
3090 cur.screenUpdateFlags(cur.result().screenUpdate() | Update::SinglePar);
3092 cur.screenUpdateFlags(cur.result().screenUpdate() | Update::Force);
3097 bool BufferView::clickableInset() const
3099 return d->clickable_inset_;