/** * \file BufferView.cpp * This file is part of LyX, the document processor. * Licence details can be found in the file COPYING. * * \author Alfredo Braunstein * \author Lars Gullik Bjønnes * \author John Levon * \author André Pönitz * \author Jürgen Vigna * * Full author contact details are available in file CREDITS. */ #include #include "BufferView.h" #include "BranchList.h" #include "Buffer.h" #include "BufferList.h" #include "BufferParams.h" #include "BiblioInfo.h" #include "CoordCache.h" #include "Cursor.h" #include "CutAndPaste.h" #include "DispatchResult.h" #include "ErrorList.h" #include "FuncRequest.h" #include "FuncStatus.h" #include "Intl.h" #include "Language.h" #include "LayoutFile.h" #include "Lexer.h" #include "LyX.h" #include "LyXAction.h" #include "lyxfind.h" #include "LyXRC.h" #include "MetricsInfo.h" #include "Paragraph.h" #include "Session.h" #include "texstream.h" #include "Text.h" #include "TextMetrics.h" #include "TexRow.h" #include "TocBackend.h" #include "insets/InsetBibtex.h" #include "insets/InsetCitation.h" #include "insets/InsetCommand.h" // ChangeRefs #include "insets/InsetGraphics.h" #include "insets/InsetIndex.h" #include "insets/InsetRef.h" #include "insets/InsetText.h" #include "mathed/InsetMathNest.h" #include "mathed/InsetMathRef.h" #include "mathed/MathData.h" #include "mathed/MathRow.h" #include "frontends/alert.h" #include "frontends/CaretGeometry.h" #include "frontends/Delegates.h" #include "frontends/FontMetrics.h" #include "frontends/NullPainter.h" #include "frontends/Painter.h" #include "frontends/Selection.h" #include "frontends/Clipboard.h" #include "support/convert.h" #include "support/debug.h" #include "support/docstring.h" #include "support/docstring_list.h" #include "support/filetools.h" #include "support/gettext.h" #include "support/lassert.h" #include "support/Length.h" #include "support/lstrings.h" #include "support/lyxlib.h" #include "support/types.h" #include #include #include #include #include #include #include #include using namespace std; using namespace lyx::support; namespace lyx { namespace Alert = frontend::Alert; namespace { /// Return an inset of this class if it exists at the current cursor position template T * getInsetByCode(Cursor const & cur, InsetCode code) { DocIterator it = cur; Inset * inset = it.nextInset(); if (inset && inset->lyxCode() == code) return static_cast(inset); return nullptr; } /// Note that comparing contents can only be used for InsetCommand bool findNextInset(DocIterator & dit, vector const & codes, docstring const & contents) { DocIterator tmpdit = dit; while (tmpdit) { Inset const * inset = tmpdit.nextInset(); if (inset) { bool const valid_code = std::find(codes.begin(), codes.end(), inset->lyxCode()) != codes.end(); InsetCommand const * ic = inset->asInsetCommand(); bool const same_or_no_contents = contents.empty() || (ic && (ic->getFirstNonOptParam() == contents)); if (valid_code && same_or_no_contents) { dit = tmpdit; return true; } } tmpdit.forwardInset(); } return false; } /// Looks for next inset with one of the given codes. /// Note that same_content can only be used for InsetCommand bool findInset(DocIterator & dit, vector const & codes, bool same_content) { docstring contents; DocIterator tmpdit = dit; tmpdit.forwardInset(); if (!tmpdit) return false; Inset const * inset = tmpdit.nextInset(); if (same_content && inset) { InsetCommand const * ic = inset->asInsetCommand(); if (ic) { bool const valid_code = std::find(codes.begin(), codes.end(), ic->lyxCode()) != codes.end(); if (valid_code) contents = ic->getFirstNonOptParam(); } } if (!findNextInset(tmpdit, codes, contents)) { if (dit.depth() != 1 || dit.pit() != 0 || dit.pos() != 0) { inset = &tmpdit.bottom().inset(); tmpdit = doc_iterator_begin(&inset->buffer(), inset); if (!findNextInset(tmpdit, codes, contents)) return false; } else { return false; } } dit = tmpdit; return true; } /// Moves cursor to the next inset with one of the given codes. bool gotoInset(BufferView * bv, vector const & codes, bool same_content) { Cursor tmpcur = bv->cursor(); if (!findInset(tmpcur, codes, same_content)) { bv->cursor().message(_("No more insets")); return false; } tmpcur.clearSelection(); bv->setCursor(tmpcur); return bv->scrollToCursor(bv->cursor(), SCROLL_TOP); } /// A map from a Text to the associated text metrics typedef map TextMetricsCache; enum ScreenUpdateStrategy { NoScreenUpdate, SingleParUpdate, FullScreenUpdate, DecorationUpdate }; } // namespace ///////////////////////////////////////////////////////////////////// // // BufferView // ///////////////////////////////////////////////////////////////////// struct BufferView::Private { Private(BufferView & bv) : update_strategy_(FullScreenUpdate), update_flags_(Update::Force), cursor_(bv), anchor_pit_(0), anchor_ypos_(0), wh_(0), inlineCompletionUniqueChars_(0), last_inset_(nullptr), mouse_position_cache_(), gui_(nullptr), bookmark_edit_position_(-1), horiz_scroll_offset_(0), clickable_inset_(false) { xsel_cache_.set = false; } /// ScrollbarParameters scrollbarParameters_; /// ScreenUpdateStrategy update_strategy_; /// Update::flags update_flags_; /// CoordCache coord_cache_; /// typedef unordered_map MathRows; MathRows math_rows_; /// this is used to handle XSelection events in the right manner. struct { CursorSlice cursor; CursorSlice anchor; bool set; } xsel_cache_; /// Cursor cursor_; /// pit_type anchor_pit_; /// int anchor_ypos_; /// Estimated average par height for scrollbar. int wh_; /// vector par_height_; /// DocIterator inlineCompletionPos_; /// docstring inlineCompletion_; /// size_t inlineCompletionUniqueChars_; /// keyboard mapping object. Intl intl_; /// last visited inset. /** kept to send setMouseHover(false). * Not owned, so don't delete. */ Inset const * last_inset_; /// position of the mouse at the time of the last mouse move /// This is used to update the hovering status of inset in /// cases where the buffer is scrolled, but the mouse didn't move. Point mouse_position_cache_; mutable TextMetricsCache text_metrics_; /// Whom to notify. /** Not owned, so don't delete. */ frontend::GuiBufferViewDelegate * gui_; /// map edited_insets_; /// When the row where the cursor lies is scrolled, this /// contains the scroll offset // cache for id of the paragraph which was edited the last time int bookmark_edit_position_; int horiz_scroll_offset_; /// a slice pointing to the start of the row where the cursor /// is (at last draw time) CursorSlice current_row_slice_; /// are we hovering something that we can click bool clickable_inset_; /// shape of the caret frontend::CaretGeometry caret_geometry_; /// bool mouse_selecting_ = false; }; BufferView::BufferView(Buffer & buf) : width_(0), height_(0), full_screen_(false), buffer_(buf), d(new Private(*this)) { d->xsel_cache_.set = false; d->intl_.initKeyMapper(lyxrc.use_kbmap); d->cursor_.setBuffer(&buf); d->cursor_.push(buffer_.inset()); d->cursor_.resetAnchor(); d->cursor_.setCurrentFont(); buffer_.updatePreviews(); } BufferView::~BufferView() { // current buffer is going to be switched-off, save cursor pos // Ideally, the whole cursor stack should be saved, but session // currently can only handle bottom (whole document) level pit and pos. // That is to say, if a cursor is in a nested inset, it will be // restore to the left of the top level inset. LastFilePosSection::FilePos fp; fp.file = buffer_.fileName(); fp.pit = d->cursor_.bottom().pit(); fp.pos = d->cursor_.bottom().pos(); theSession().lastFilePos().save(fp); if (d->last_inset_) d->last_inset_->setMouseHover(this, false); delete d; } int BufferView::defaultMargin() const { // The value used to be hardcoded to 10 return zoomedPixels(20); } int BufferView::rightMargin() const { const int screen_width = inPixels(lyxrc.screen_width); // The additional test for the case the outliner is opened. if (!lyxrc.screen_limit || width_ < screen_width + 2 * defaultMargin()) { return defaultMargin(); } else { return (width_ - screen_width) / 2; } } int BufferView::leftMargin() const { return rightMargin(); } int BufferView::topMargin() const { // Original value was 20px at 100dpi. For internal buffers like in // advanced search and replace, a value of 5px is enough. return zoomedPixels(buffer().isInternal() ? 5 : 20); } int BufferView::bottomMargin() const { return topMargin(); } int BufferView::inPixels(Length const & len) const { Font const font = buffer().params().getFont(); return len.inPixels(workWidth(), theFontMetrics(font).em()); } int BufferView::zoomedPixels(int pix) const { // FIXME: the dpi setting should really depend on the BufferView // (think different monitors). // Zoom factor specified by user in percent double const zoom = lyxrc.currentZoom / 100.0; // [percent] // DPI setting for monitor relative to 100dpi double const dpizoom = lyxrc.dpi / 100.0; // [per 100dpi] return support::iround(pix * zoom * dpizoom); } bool BufferView::isTopScreen() const { return 0 == d->scrollbarParameters_.min; } bool BufferView::isBottomScreen() const { return 0 == d->scrollbarParameters_.max; } Intl & BufferView::getIntl() { return d->intl_; } Intl const & BufferView::getIntl() const { return d->intl_; } CoordCache & BufferView::coordCache() { return d->coord_cache_; } CoordCache const & BufferView::coordCache() const { return d->coord_cache_; } MathRow const & BufferView::mathRow(MathData const * cell) const { auto it = d->math_rows_.find(cell); LATTEST(it != d->math_rows_.end()); return it->second; } void BufferView::setMathRow(MathData const * cell, MathRow const & mrow) { d->math_rows_[cell] = mrow; } Buffer & BufferView::buffer() { return buffer_; } Buffer const & BufferView::buffer() const { return buffer_; } docstring const & BufferView::searchRequestCache() const { return theClipboard().getFindBuffer(); } void BufferView::setSearchRequestCache(docstring const & text) { bool casesensitive; bool matchword; bool forward; bool wrap; bool instant; bool onlysel; docstring const search = string2find(text, casesensitive, matchword, forward, wrap, instant, onlysel); theClipboard().setFindBuffer(search); } bool BufferView::needsFitCursor() const { if (cursorStatus(d->cursor_) == CUR_INSIDE) { frontend::FontMetrics const & fm = theFontMetrics(d->cursor_.getFont().fontInfo()); int const asc = fm.maxAscent(); int const des = fm.maxDescent(); Point const p = getPos(d->cursor_); if (p.y_ - asc >= 0 && p.y_ + des < height_) return false; } return true; } namespace { // this is for debugging only. string flagsAsString(Update::flags flags) { if (flags == Update::None) return "None "; return string((flags & Update::FitCursor) ? "FitCursor " : "") + ((flags & Update::Force) ? "Force " : "") + ((flags & Update::ForceDraw) ? "ForceDraw " : "") + ((flags & Update::SinglePar) ? "SinglePar " : "") + ((flags & Update::Decoration) ? "Decoration " : ""); } } void BufferView::processUpdateFlags(Update::flags flags) { LYXERR(Debug::PAINTING, "BufferView::processUpdateFlags( " << flagsAsString(flags) << ") buffer: " << &buffer_); // Case when no explicit update is requested. if (flags == Update::None) return; /* FIXME We would like to avoid doing this here, since it is very * expensive and is called in updateBuffer already. However, even * inserting a plain character can invalidate the overly fragile * tables of child documents built by updateMacros. Some work is * needed to avoid doing that when not necessary. */ buffer_.updateMacros(); // First check whether the metrics and inset positions should be updated if (flags & Update::Force) { // This will update the CoordCache items and replace Force // with ForceDraw in flags. updateMetrics(flags); } // Detect whether we can only repaint a single paragraph (if we // are not already redrawing all). // We handle this before FitCursor because the later will require // correct metrics at cursor position. if (!(flags & Update::ForceDraw) && (flags & Update::SinglePar) && !singleParUpdate()) updateMetrics(flags); // Then make sure that the screen contains the cursor if needed if (flags & Update::FitCursor) { if (needsFitCursor()) { // First try to make the selection start visible // (which is just the cursor when there is no selection) scrollToCursor(d->cursor_.selectionBegin(), SCROLL_VISIBLE); // Metrics have to be recomputed (maybe again) updateMetrics(); // Is the cursor visible? (only useful if cursor is at end of selection) if (needsFitCursor()) { // then try to make cursor visible instead scrollToCursor(d->cursor_, SCROLL_VISIBLE); // Metrics have to be recomputed (maybe again) updateMetrics(flags); } } flags = flags & ~Update::FitCursor; } // Add flags to the the update flags. These will be reset to None // after the redraw is actually done d->update_flags_ = d->update_flags_ | flags; LYXERR(Debug::PAINTING, "Cumulative flags: " << flagsAsString(flags)); // Now compute the update strategy // Possibly values in flag are None, SinglePar, Decoration, ForceDraw LATTEST((d->update_flags_ & ~(Update::None | Update::SinglePar | Update::Decoration | Update::ForceDraw)) == 0); if (d->update_flags_ & Update::ForceDraw) d->update_strategy_ = FullScreenUpdate; else if (d->update_flags_ & Update::Decoration) d->update_strategy_ = DecorationUpdate; else if (d->update_flags_ & Update::SinglePar) d->update_strategy_ = SingleParUpdate; else { // no need to redraw anything. d->update_strategy_ = NoScreenUpdate; } updateHoveredInset(); // Trigger a redraw. buffer_.changed(false); } void BufferView::updateScrollbarParameters() { if (height_ == 0 && width_ == 0) return; // We prefer fixed size line scrolling. d->scrollbarParameters_.single_step = defaultRowHeight(); // We prefer full screen page scrolling. d->scrollbarParameters_.page_step = height_; Text & t = buffer_.text(); TextMetrics & tm = d->text_metrics_[&t]; LYXERR(Debug::GUI, " Updating scrollbar: height: " << t.paragraphs().size() << " curr par: " << d->cursor_.bottom().pit() << " default height " << defaultRowHeight()); size_t const parsize = t.paragraphs().size(); if (d->par_height_.size() != parsize) { d->par_height_.clear(); // FIXME: We assume a default paragraph height of 2 rows. This // should probably be pondered with the screen width. d->par_height_.resize(parsize, defaultRowHeight() * 2); } // Look at paragraph heights on-screen pair first = tm.first(); pair last = tm.last(); for (pit_type pit = first.first; pit <= last.first; ++pit) { d->par_height_[pit] = tm.parMetrics(pit).height(); LYXERR(Debug::SCROLLING, "storing height for pit " << pit << " : " << d->par_height_[pit]); } int top_pos = first.second->position() - first.second->ascent(); int bottom_pos = last.second->position() + last.second->descent(); bool first_visible = first.first == 0 && top_pos >= 0; bool last_visible = last.first + 1 == int(parsize) && bottom_pos <= height_; if (first_visible && last_visible) { d->scrollbarParameters_.min = 0; d->scrollbarParameters_.max = 0; return; } d->scrollbarParameters_.min = top_pos; for (size_t i = 0; i != size_t(first.first); ++i) d->scrollbarParameters_.min -= d->par_height_[i]; d->scrollbarParameters_.max = bottom_pos; for (size_t i = last.first + 1; i != parsize; ++i) d->scrollbarParameters_.max += d->par_height_[i]; // The reference is the top position so we remove one page. if (lyxrc.scroll_below_document) d->scrollbarParameters_.max -= minVisiblePart(); else d->scrollbarParameters_.max -= d->scrollbarParameters_.page_step; // 0 must be inside the range as it denotes the current position if (d->scrollbarParameters_.max < 0) d->scrollbarParameters_.max = 0; if (d->scrollbarParameters_.min > 0) d->scrollbarParameters_.min = 0; } ScrollbarParameters const & BufferView::scrollbarParameters() const { return d->scrollbarParameters_; } docstring BufferView::toolTip(int x, int y) const { // Get inset under mouse, if there is one. Inset const * covering_inset = getCoveringInset(buffer_.text(), x, y); if (!covering_inset) // No inset, no tooltip... return docstring(); return covering_inset->toolTip(*this, x, y); } string BufferView::contextMenu(int x, int y) const { //If there is a selection, return the containing inset menu if (d->cursor_.selection()) return d->cursor_.inset().contextMenu(*this, x, y); // Get inset under mouse, if there is one. Inset const * covering_inset = getCoveringInset(buffer_.text(), x, y); if (covering_inset) { if (covering_inset->asInsetMath()) { CoordCache::Insets const & inset_cache = coordCache().getInsets(); Inset const * inner_inset = mathContextMenu( covering_inset->asInsetMath()->asNestInset(), inset_cache, x, y); if (inner_inset) return inner_inset->contextMenu(*this, x, y); } return covering_inset->contextMenu(*this, x, y); } return buffer_.inset().contextMenu(*this, x, y); } Inset const * BufferView::mathContextMenu(InsetMathNest const * inset, CoordCache::Insets const & inset_cache, int x, int y) const { for (size_t i = 0; i < inset->nargs(); ++i) { MathData const & ar = inset->cell(i); for (size_t j = 0; j < ar.size(); ++j) { string const name = lyxerr.debugging(Debug::MATHED) ? insetName(ar[j].nucleus()->lyxCode()) : string(); LYXERR(Debug::MATHED, "Examining inset: " << name); if (!ar[j].nucleus()->contextMenuName().empty()) { if (inset_cache.covers(ar[j].nucleus(), x, y)) { LYXERR(Debug::MATHED, "Hit inset: " << name); return ar[j].nucleus(); } } InsetMathNest const * imn = ar[j].nucleus()->asNestInset(); if (imn) { Inset const * inner = mathContextMenu(imn, inset_cache, x, y); if (inner) return inner; } } } return nullptr; } void BufferView::scrollDocView(int const pixels, bool update) { // The scrollbar values are relative to the top of the screen, therefore the // offset is equal to the target value. // No scrolling at all? No need to redraw anything if (pixels == 0) return; // If the offset is less than 2 screen height, prefer to scroll instead. if (abs(pixels) <= 2 * height_) { d->anchor_ypos_ -= pixels; processUpdateFlags(Update::Force); return; } // cut off at the top if (pixels <= d->scrollbarParameters_.min) { DocIterator dit = doc_iterator_begin(&buffer_); showCursor(dit, SCROLL_VISIBLE, update); LYXERR(Debug::SCROLLING, "scroll to top"); return; } // cut off at the bottom if (pixels >= d->scrollbarParameters_.max) { DocIterator dit = doc_iterator_end(&buffer_); dit.backwardPos(); showCursor(dit, SCROLL_VISIBLE, update); LYXERR(Debug::SCROLLING, "scroll to bottom"); return; } // find paragraph at target position int par_pos = d->scrollbarParameters_.min; pit_type i = 0; for (; i != int(d->par_height_.size()); ++i) { par_pos += d->par_height_[i]; if (par_pos >= pixels) break; } if (par_pos < pixels) { // It seems we didn't find the correct pit so stay on the safe side and // scroll to bottom. LYXERR0("scrolling position not found!"); scrollDocView(d->scrollbarParameters_.max, update); return; } DocIterator dit = doc_iterator_begin(&buffer_); dit.pit() = i; LYXERR(Debug::SCROLLING, "pixels = " << pixels << " -> scroll to pit " << i); showCursor(dit, SCROLL_VISIBLE, update); } // FIXME: this method is not working well. void BufferView::setCursorFromScrollbar() { TextMetrics & tm = d->text_metrics_[&buffer_.text()]; int const height = 2 * defaultRowHeight(); int const first = height; int const last = height_ - height; int newy = 0; Cursor const & oldcur = d->cursor_; switch (cursorStatus(oldcur)) { case CUR_ABOVE: newy = first; break; case CUR_BELOW: newy = last; break; case CUR_INSIDE: int const y = getPos(oldcur).y_; newy = min(last, max(y, first)); if (y == newy) return; } // We reset the cursor because cursorStatus() does not // work when the cursor is within mathed. Cursor cur(*this); cur.reset(); tm.setCursorFromCoordinates(cur, 0, newy); // update the bufferview cursor and notify insets // FIXME: Care about the d->cursor_ flags to redraw if needed Cursor old = d->cursor_; mouseSetCursor(cur); // the DEPM call in mouseSetCursor() might have destroyed the // paragraph the cursor is in. bool badcursor = old.fixIfBroken(); badcursor |= notifyCursorLeavesOrEnters(old, d->cursor_); if (badcursor) d->cursor_.fixIfBroken(); } Change const BufferView::getCurrentChange() const { if (!d->cursor_.selection()) return Change(Change::UNCHANGED); DocIterator dit = d->cursor_.selectionBegin(); // The selected content might have been changed (see #7685) dit = dit.getInnerText(); return dit.paragraph().lookupChange(dit.pos()); } // this could be used elsewhere as well? // FIXME: This does not work within mathed! CursorStatus BufferView::cursorStatus(DocIterator const & dit) const { Point const p = getPos(dit); if (p.y_ < 0) return CUR_ABOVE; if (p.y_ > workHeight()) return CUR_BELOW; return CUR_INSIDE; } void BufferView::bookmarkEditPosition() { // Don't eat cpu time for each keystroke if (d->cursor_.paragraph().id() == d->bookmark_edit_position_) return; saveBookmark(0); d->bookmark_edit_position_ = d->cursor_.paragraph().id(); } void BufferView::saveBookmark(unsigned int idx) { if (buffer().isInternal()) return; // tentatively save bookmark, id and pos will be used to // acturately locate a bookmark in a 'live' lyx session. // pit and pos will be updated with bottom level pit/pos // when lyx exits. theSession().bookmarks().save( buffer_.fileName(), d->cursor_.bottom().pit(), d->cursor_.bottom().pos(), d->cursor_.paragraph().id(), d->cursor_.pos(), idx ); if (idx) // emit message signal. message(_("Save bookmark")); } bool BufferView::moveToPosition(pit_type bottom_pit, pos_type bottom_pos, int top_id, pos_type top_pos) { bool success = false; DocIterator dit; d->cursor_.clearSelection(); // if a valid par_id is given, try it first // This is the case for a 'live' bookmark when unique paragraph ID // is used to track bookmarks. if (top_id > 0) { dit = buffer_.getParFromID(top_id); if (!dit.atEnd()) { dit.pos() = min(dit.paragraph().size(), top_pos); // Some slices of the iterator may not be // reachable (e.g. closed collapsible inset) // so the dociterator may need to be // shortened. Otherwise, setCursor may crash // lyx when the cursor can not be set to these // insets. size_t const n = dit.depth(); for (size_t i = 0; i < n; ++i) if (!dit[i].inset().editable()) { dit.resize(i); break; } success = true; } } // if top_id == 0, or searching through top_id failed // This is the case for a 'restored' bookmark when only bottom // (document level) pit was saved. Because of this, bookmark // restoration is inaccurate. If a bookmark was within an inset, // it will be restored to the left of the outmost inset that contains // the bookmark. if (!success && bottom_pit < int(buffer_.paragraphs().size())) { dit = doc_iterator_begin(&buffer_); dit.pit() = bottom_pit; dit.pos() = min(bottom_pos, dit.paragraph().size()); success = true; } if (success) { // Note: only bottom (document) level pit is set. setCursor(dit); // set the current font. d->cursor_.setCurrentFont(); // Do not forget to reset the anchor (see #9912) d->cursor_.resetAnchor(); processUpdateFlags(Update::Force | Update::FitCursor); } return success; } void BufferView::translateAndInsert(char_type c, Text * t, Cursor & cur) { if (d->cursor_.real_current_font.isRightToLeft()) { if (d->intl_.keymap == Intl::PRIMARY) d->intl_.keyMapSec(); } else { if (d->intl_.keymap == Intl::SECONDARY) d->intl_.keyMapPrim(); } d->intl_.getTransManager().translateAndInsert(c, t, cur); } int BufferView::workWidth() const { return width_; } void BufferView::recenter() { showCursor(d->cursor_, SCROLL_CENTER, true); } void BufferView::showCursor() { showCursor(d->cursor_, SCROLL_VISIBLE, true); } void BufferView::showCursor(DocIterator const & dit, ScrollType how, bool update) { if (scrollToCursor(dit, how) && update) processUpdateFlags(Update::Force); } bool BufferView::scrollToCursor(DocIterator const & dit, ScrollType how) { // We are not properly started yet, delay until resizing is done. if (height_ == 0) return false; if (how == SCROLL_CENTER) LYXERR(Debug::SCROLLING, "Centering cursor in workarea"); else if (how == SCROLL_TOP) LYXERR(Debug::SCROLLING, "Setting cursor to top of workarea"); else LYXERR(Debug::SCROLLING, "Making sure cursor is visible in workarea"); CursorSlice const & bot = dit.bottom(); TextMetrics & tm = textMetrics(bot.text()); pos_type const max_pit = pos_type(bot.text()->paragraphs().size() - 1); pos_type bot_pit = bot.pit(); if (bot_pit > max_pit) { // FIXME: Why does this happen? LYXERR0("bottom pit is greater that max pit: " << bot_pit << " > " << max_pit); bot_pit = max_pit; } if (bot_pit == tm.first().first - 1) tm.newParMetricsUp(); else if (bot_pit == tm.last().first + 1) tm.newParMetricsDown(); if (tm.contains(bot_pit) && how == SCROLL_VISIBLE) { ParagraphMetrics const & pm = tm.parMetrics(bot_pit); LBUFERR(!pm.rows().empty()); // FIXME: smooth scrolling doesn't work in mathed. CursorSlice const & cs = dit.innerTextSlice(); int const ypos = pm.position() + coordOffset(dit).y_; ParagraphMetrics const & inner_pm = textMetrics(cs.text()).parMetrics(cs.pit()); Dimension const & row_dim = inner_pm.getRow(cs.pos(), dit.boundary()).dim(); int scrolled = 0; // We try to visualize the whole row, if the row height is larger than // the screen height, we scroll to a heuristic value of height_ / 4. // FIXME: This heuristic value should be replaced by a recursive search // for a row in the inset that can be visualized completely. if (row_dim.height() > height_) { if (ypos < defaultRowHeight()) scrolled = scroll(ypos - height_ / 4); else if (ypos > height_ - defaultRowHeight()) scrolled = scroll(ypos - 3 * height_ / 4); } // If the top part of the row falls of the screen, we scroll // up to align the top of the row with the top of the screen. else if (ypos - row_dim.ascent() < 0 && ypos < height_) { int const ynew = row_dim.ascent(); scrolled = scrollUp(ynew - ypos); } // If the bottom of the row falls of the screen, we scroll down. else if (ypos + row_dim.descent() > height_ && ypos > 0) { int const ynew = height_ - row_dim.descent(); scrolled = scrollDown(ypos - ynew); } // else, nothing to do, the cursor is already visible so we just return. return scrolled != 0; } // fix inline completion position if (d->inlineCompletionPos_.fixIfBroken()) d->inlineCompletionPos_ = DocIterator(); tm.redoParagraph(bot_pit); int const offset = coordOffset(dit).y_; pit_type const old_pit = d->anchor_pit_; d->anchor_pit_ = bot_pit; CursorSlice const & cs = dit.innerTextSlice(); ParagraphMetrics const & inner_pm = textMetrics(cs.text()).parMetrics(cs.pit()); Dimension const & row_dim = inner_pm.getRow(cs.pos(), dit.boundary()).dim(); int const old_ypos = d->anchor_ypos_; d->anchor_ypos_ = - offset + row_dim.ascent(); if (how == SCROLL_CENTER) d->anchor_ypos_ += height_/2 - row_dim.height() / 2; return d->anchor_ypos_ != old_ypos || d->anchor_pit_ != old_pit; } void BufferView::makeDocumentClass() { DocumentClassConstPtr olddc = buffer_.params().documentClassPtr(); buffer_.params().makeDocumentClass(buffer_.isClone(), buffer_.isInternal()); updateDocumentClass(olddc); } void BufferView::updateDocumentClass(DocumentClassConstPtr olddc) { StableDocIterator backcur(d->cursor_); ErrorList & el = buffer_.errorList("Class Switch"); cap::switchBetweenClasses( olddc, buffer_.params().documentClassPtr(), static_cast(buffer_.inset()), el); setCursor(backcur.asDocIterator(&buffer_)); buffer_.errors("Class Switch"); } /** Return the change status at cursor position, taking into account the * status at each level of the document iterator (a table in a deleted * footnote is deleted). * When \param outer is true, the top slice is not looked at. */ static Change::Type lookupChangeType(DocIterator const & dit, bool outer = false) { size_t const depth = dit.depth() - (outer ? 1 : 0); for (size_t i = 0 ; i < depth ; ++i) { CursorSlice const & slice = dit[i]; if (!slice.inset().inMathed() && slice.pos() < slice.paragraph().size()) { Change::Type const ch = slice.paragraph().lookupChange(slice.pos()).type; if (ch != Change::UNCHANGED) return ch; } } return Change::UNCHANGED; } bool BufferView::getStatus(FuncRequest const & cmd, FuncStatus & flag) { FuncCode const act = cmd.action(); // Can we use a readonly buffer? if (buffer_.isReadonly() && !lyxaction.funcHasFlag(act, LyXAction::ReadOnly) && !lyxaction.funcHasFlag(act, LyXAction::NoBuffer)) { if (buffer_.hasReadonlyFlag()) flag.message(from_utf8(N_("Document is read-only"))); else flag.message(from_utf8(N_("Document has been modified externally"))); flag.setEnabled(false); return true; } // Are we in a DELETED change-tracking region? if (lookupChangeType(d->cursor_, true) == Change::DELETED && !lyxaction.funcHasFlag(act, LyXAction::ReadOnly) && !lyxaction.funcHasFlag(act, LyXAction::NoBuffer)) { flag.message(from_utf8(N_("This portion of the document is deleted."))); flag.setEnabled(false); return true; } Cursor & cur = d->cursor_; if (cur.getStatus(cmd, flag)) return true; switch (act) { // FIXME: This is a bit problematic because we don't check if this is // a document BufferView or not for these LFUNs. We probably have to // dispatch both to currentBufferView() and, if that fails, // to documentBufferView(); same as we do now for current Buffer and // document Buffer. Ideally those LFUN should go to Buffer as they // operate on the full Buffer and the cursor is only needed either for // an Undo record or to restore a cursor position. But we don't know // how to do that inside Buffer of course. case LFUN_BUFFER_PARAMS_APPLY: case LFUN_LAYOUT_MODULES_CLEAR: case LFUN_LAYOUT_MODULE_ADD: case LFUN_LAYOUT_RELOAD: case LFUN_TEXTCLASS_APPLY: case LFUN_TEXTCLASS_LOAD: flag.setEnabled(!buffer_.isReadonly()); break; case LFUN_UNDO: // We do not use the LyXAction flag for readonly because Undo sets the // buffer clean/dirty status by itself. flag.setEnabled(!buffer_.isReadonly() && buffer_.undo().hasUndoStack()); break; case LFUN_REDO: // We do not use the LyXAction flag for readonly because Redo sets the // buffer clean/dirty status by itself. flag.setEnabled(!buffer_.isReadonly() && buffer_.undo().hasRedoStack()); break; case LFUN_FILE_INSERT_PLAINTEXT_PARA: case LFUN_FILE_INSERT_PLAINTEXT: { docstring const & fname = cmd.argument(); if (!FileName::isAbsolute(to_utf8(fname))) { flag.message(_("Absolute filename expected.")); return false; } flag.setEnabled(cur.inTexted()); break; } case LFUN_FILE_INSERT: case LFUN_BOOKMARK_SAVE: // FIXME: Actually, these LFUNS should be moved to Text flag.setEnabled(cur.inTexted()); break; case LFUN_FONT_STATE: case LFUN_LABEL_INSERT: case LFUN_INFO_INSERT: case LFUN_PARAGRAPH_GOTO: case LFUN_NOTE_NEXT: case LFUN_REFERENCE_NEXT: case LFUN_WORD_FIND: case LFUN_WORD_FIND_FORWARD: case LFUN_WORD_FIND_BACKWARD: case LFUN_WORD_REPLACE: case LFUN_MARK_OFF: case LFUN_MARK_ON: case LFUN_MARK_TOGGLE: case LFUN_SEARCH_STRING_SET: case LFUN_SCREEN_RECENTER: case LFUN_SCREEN_SHOW_CURSOR: case LFUN_BIBTEX_DATABASE_ADD: case LFUN_BIBTEX_DATABASE_DEL: case LFUN_BIBTEX_DATABASE_LIST: case LFUN_STATISTICS: case LFUN_KEYMAP_OFF: case LFUN_KEYMAP_PRIMARY: case LFUN_KEYMAP_SECONDARY: case LFUN_KEYMAP_TOGGLE: case LFUN_INSET_SELECT_ALL: flag.setEnabled(true); break; case LFUN_GRAPHICS_UNIFY: flag.setEnabled(cur.countInsetsInSelection(GRAPHICS_CODE)>1); break; case LFUN_WORD_FINDADV: { FindAndReplaceOptions opt; istringstream iss(to_utf8(cmd.argument())); iss >> opt; flag.setEnabled(opt.repl_buf_name.empty() || !buffer_.isReadonly()); break; } case LFUN_LABEL_GOTO: flag.setEnabled(!cmd.argument().empty() || getInsetByCode(cur, REF_CODE) || getInsetByCode(cur, MATH_REF_CODE)); break; case LFUN_CHANGES_MERGE: case LFUN_CHANGE_NEXT: case LFUN_CHANGE_PREVIOUS: case LFUN_ALL_CHANGES_ACCEPT: case LFUN_ALL_CHANGES_REJECT: flag.setEnabled(buffer_.areChangesPresent()); break; case LFUN_SCREEN_UP: case LFUN_SCREEN_DOWN: case LFUN_SCROLL: case LFUN_SCREEN_UP_SELECT: case LFUN_SCREEN_DOWN_SELECT: case LFUN_INSET_FORALL: flag.setEnabled(true); break; case LFUN_LAYOUT_TABULAR: flag.setEnabled(cur.innerInsetOfType(TABULAR_CODE)); break; case LFUN_LAYOUT: flag.setEnabled(!cur.inset().forcePlainLayout(cur.idx())); break; case LFUN_LAYOUT_PARAGRAPH: flag.setEnabled(cur.inset().allowParagraphCustomization(cur.idx())); break; case LFUN_BRANCH_ADD_INSERT: flag.setEnabled(!(cur.inTexted() && cur.paragraph().isPassThru())); break; case LFUN_DIALOG_SHOW_NEW_INSET: // FIXME: this is wrong, but I do not understand the // intent (JMarc) if (cur.inset().lyxCode() == CAPTION_CODE) return cur.inset().getStatus(cur, cmd, flag); // FIXME we should consider passthru paragraphs too. flag.setEnabled(!(cur.inTexted() && cur.paragraph().isPassThru())); break; case LFUN_CITATION_INSERT: { FuncRequest fr(LFUN_INSET_INSERT, "citation"); // FIXME: This could turn in a recursive hell. // Shouldn't we use Buffer::getStatus() instead? flag.setEnabled(lyx::getStatus(fr).enabled()); break; } case LFUN_INSET_APPLY: { string const name = cmd.getArg(0); Inset * inset = editedInset(name); if (inset) { FuncRequest fr(LFUN_INSET_MODIFY, cmd.argument()); if (!inset->getStatus(cur, fr, flag)) { // Every inset is supposed to handle this LASSERT(false, break); } } else { FuncRequest fr(LFUN_INSET_INSERT, cmd.argument()); flag = lyx::getStatus(fr); } break; } case LFUN_COPY: flag.setEnabled(cur.selection()); break; default: return false; } return true; } Inset * BufferView::editedInset(string const & name) const { map::const_iterator it = d->edited_insets_.find(name); return it == d->edited_insets_.end() ? nullptr : it->second; } void BufferView::editInset(string const & name, Inset * inset) { if (inset) d->edited_insets_[name] = inset; else d->edited_insets_.erase(name); } void BufferView::dispatch(FuncRequest const & cmd, DispatchResult & dr) { LYXERR(Debug::ACTION, "BufferView::dispatch: cmd: " << cmd); string const argument = to_utf8(cmd.argument()); Cursor & cur = d->cursor_; Cursor old = cur; // Don't dispatch function that does not apply to internal buffers. if (buffer_.isInternal() && lyxaction.funcHasFlag(cmd.action(), LyXAction::NoInternal)) return; // We'll set this back to false if need be. bool dispatched = true; buffer_.undo().beginUndoGroup(); FuncCode const act = cmd.action(); switch (act) { case LFUN_BUFFER_PARAMS_APPLY: { DocumentClassConstPtr olddc = buffer_.params().documentClassPtr(); cur.recordUndoBufferParams(); istringstream ss(to_utf8(cmd.argument())); Lexer lex; lex.setStream(ss); int const unknown_tokens = buffer_.readHeader(lex); if (unknown_tokens != 0) { LYXERR0("Warning in LFUN_BUFFER_PARAMS_APPLY!\n" << unknown_tokens << " unknown token" << (unknown_tokens == 1 ? "" : "s")); } updateDocumentClass(olddc); // We are most certainly here because of a change in the document // It is then better to make sure that all dialogs are in sync with // current document settings. dr.screenUpdate(Update::Force | Update::FitCursor); dr.forceBufferUpdate(); break; } case LFUN_LAYOUT_MODULES_CLEAR: { // FIXME: this modifies the document in cap::switchBetweenClasses // without calling recordUndo. Fix this before using // recordUndoBufferParams(). cur.recordUndoFullBuffer(); buffer_.params().clearLayoutModules(); makeDocumentClass(); dr.screenUpdate(Update::Force); dr.forceBufferUpdate(); break; } case LFUN_LAYOUT_MODULE_ADD: { BufferParams const & params = buffer_.params(); if (!params.layoutModuleCanBeAdded(argument)) { LYXERR0("Module `" << argument << "' cannot be added due to failed requirements or " "conflicts with installed modules."); break; } // FIXME: this modifies the document in cap::switchBetweenClasses // without calling recordUndo. Fix this before using // recordUndoBufferParams(). cur.recordUndoFullBuffer(); buffer_.params().addLayoutModule(argument); makeDocumentClass(); dr.screenUpdate(Update::Force); dr.forceBufferUpdate(); break; } case LFUN_TEXTCLASS_APPLY: { // since this shortcircuits, the second call is made only if // the first fails bool const success = LayoutFileList::get().load(argument, buffer_.temppath()) || LayoutFileList::get().load(argument, buffer_.filePath()); if (!success) { docstring s = bformat(_("The document class `%1$s' " "could not be loaded."), from_utf8(argument)); frontend::Alert::error(_("Could not load class"), s); break; } LayoutFile const * old_layout = buffer_.params().baseClass(); LayoutFile const * new_layout = &(LayoutFileList::get()[argument]); if (old_layout == new_layout) // nothing to do break; // Save the old, possibly modular, layout for use in conversion. // FIXME: this modifies the document in cap::switchBetweenClasses // without calling recordUndo. Fix this before using // recordUndoBufferParams(). cur.recordUndoFullBuffer(); buffer_.params().setBaseClass(argument, buffer_.layoutPos()); makeDocumentClass(); dr.screenUpdate(Update::Force); dr.forceBufferUpdate(); break; } case LFUN_TEXTCLASS_LOAD: { // since this shortcircuits, the second call is made only if // the first fails bool const success = LayoutFileList::get().load(argument, buffer_.temppath()) || LayoutFileList::get().load(argument, buffer_.filePath()); if (!success) { docstring s = bformat(_("The document class `%1$s' " "could not be loaded."), from_utf8(argument)); frontend::Alert::error(_("Could not load class"), s); } break; } case LFUN_LAYOUT_RELOAD: { LayoutFileIndex bc = buffer_.params().baseClassID(); LayoutFileList::get().reset(bc); buffer_.params().setBaseClass(bc, buffer_.layoutPos()); makeDocumentClass(); dr.screenUpdate(Update::Force); dr.forceBufferUpdate(); break; } case LFUN_UNDO: { dr.setMessage(_("Undo")); cur.clearSelection(); // We need to find out if the bibliography information // has changed. See bug #11055. // So these should not be references... string const engine = buffer().params().citeEngine(); CiteEngineType const enginetype = buffer().params().citeEngineType(); if (!cur.undoAction()) dr.setMessage(_("No further undo information")); else { dr.screenUpdate(Update::Force | Update::FitCursor); dr.forceBufferUpdate(); resetInlineCompletionPos(); if (buffer().params().citeEngine() != engine || buffer().params().citeEngineType() != enginetype) buffer().invalidateCiteLabels(); } break; } case LFUN_REDO: { dr.setMessage(_("Redo")); cur.clearSelection(); // We need to find out if the bibliography information // has changed. See bug #11055. // So these should not be references... string const engine = buffer().params().citeEngine(); CiteEngineType const enginetype = buffer().params().citeEngineType(); if (!cur.redoAction()) dr.setMessage(_("No further redo information")); else { dr.screenUpdate(Update::Force | Update::FitCursor); dr.forceBufferUpdate(); resetInlineCompletionPos(); if (buffer().params().citeEngine() != engine || buffer().params().citeEngineType() != enginetype) buffer().invalidateCiteLabels(); } break; } case LFUN_FONT_STATE: dr.setMessage(cur.currentState(false)); break; case LFUN_BOOKMARK_SAVE: dr.screenUpdate(Update::Force); saveBookmark(convert(to_utf8(cmd.argument()))); break; case LFUN_LABEL_GOTO: { docstring label = cmd.argument(); if (label.empty()) { InsetRef * inset = getInsetByCode(cur, REF_CODE); if (inset) { label = inset->getParam("reference"); // persistent=false: use temp_bookmark saveBookmark(0); } } if (!label.empty()) { gotoLabel(label); // at the moment, this is redundant, since gotoLabel will // eventually call LFUN_PARAGRAPH_GOTO, but it seems best // to have it here. dr.screenUpdate(Update::Force | Update::FitCursor); } else { InsetMathRef * minset = getInsetByCode(cur, MATH_REF_CODE); if (minset) lyx::dispatch(FuncRequest(LFUN_LABEL_GOTO, minset->getTarget())); } break; } case LFUN_PARAGRAPH_GOTO: { int const id = convert(cmd.getArg(0)); pos_type const pos = convert(cmd.getArg(1)); if (id < 0) break; string const str_id_end = cmd.getArg(2); string const str_pos_end = cmd.getArg(3); int i = 0; for (Buffer * b = &buffer_; i == 0 || b != &buffer_; b = theBufferList().next(b)) { Cursor curs(*this); curs.setCursor(b->getParFromID(id)); if (curs.atEnd()) { LYXERR(Debug::INFO, "No matching paragraph found! [" << id << "]."); ++i; continue; } LYXERR(Debug::INFO, "Paragraph " << curs.paragraph().id() << " found in buffer `" << b->absFileName() << "'."); if (b == &buffer_) { bool success; if (str_id_end.empty() || str_pos_end.empty()) { // Set the cursor curs.pos() = pos; mouseSetCursor(curs); success = true; } else { int const id_end = convert(str_id_end); pos_type const pos_end = convert(str_pos_end); success = setCursorFromEntries({id, pos}, {id_end, pos_end}); } if (success && scrollToCursor(d->cursor_, SCROLL_TOP)) dr.screenUpdate(Update::Force); } else { // Switch to other buffer view and resend cmd lyx::dispatch(FuncRequest( LFUN_BUFFER_SWITCH, b->absFileName())); lyx::dispatch(cmd); } break; } break; } case LFUN_NOTE_NEXT: if (gotoInset(this, { NOTE_CODE }, false)) dr.screenUpdate(Update::Force); break; case LFUN_REFERENCE_NEXT: { if (gotoInset(this, { LABEL_CODE, REF_CODE }, true)) dr.screenUpdate(Update::Force); break; } case LFUN_CHANGE_NEXT: findNextChange(this); if (cur.inset().isTable()) // In tables, there might be whole changed rows or columns cur.dispatch(cmd); // FIXME: Move this LFUN to Buffer so that we don't have to do this: dr.screenUpdate(Update::Force | Update::FitCursor); break; case LFUN_CHANGE_PREVIOUS: findPreviousChange(this); if (cur.inset().isTable()) // In tables, there might be whole changed rows or columns cur.dispatch(cmd); // FIXME: Move this LFUN to Buffer so that we don't have to do this: dr.screenUpdate(Update::Force | Update::FitCursor); break; case LFUN_CHANGES_MERGE: if (findNextChange(this) || findPreviousChange(this)) { dr.screenUpdate(Update::Force | Update::FitCursor); dr.forceBufferUpdate(); showDialog("changes"); } break; case LFUN_ALL_CHANGES_ACCEPT: { // select complete document cur.reset(); cur.selHandle(true); buffer_.text().cursorBottom(cur); // accept everything in a single step to support atomic undo // temporarily disable track changes in order to end with really // no new (e.g., DPSM-caused) changes (see #7487) bool const track = buffer_.params().track_changes; buffer_.params().track_changes = false; buffer_.text().acceptOrRejectChanges(cur, Text::ACCEPT); buffer_.params().track_changes = track; cur.resetAnchor(); // FIXME: Move this LFUN to Buffer so that we don't have to do this: dr.screenUpdate(Update::Force | Update::FitCursor); dr.forceBufferUpdate(); break; } case LFUN_ALL_CHANGES_REJECT: { // select complete document cur.reset(); cur.selHandle(true); buffer_.text().cursorBottom(cur); // reject everything in a single step to support atomic undo // temporarily disable track changes in order to end with really // no new (e.g., DPSM-caused) changes (see #7487) bool const track = buffer_.params().track_changes; buffer_.params().track_changes = false; buffer_.text().acceptOrRejectChanges(cur, Text::REJECT); buffer_.params().track_changes = track; cur.resetAnchor(); // FIXME: Move this LFUN to Buffer so that we don't have to do this: dr.screenUpdate(Update::Force | Update::FitCursor); dr.forceBufferUpdate(); break; } case LFUN_WORD_FIND_FORWARD: case LFUN_WORD_FIND_BACKWARD: { docstring searched_string; if (!cmd.argument().empty()) { setSearchRequestCache(cmd.argument()); searched_string = cmd.argument(); } else { searched_string = searchRequestCache(); } if (searched_string.empty()) break; docstring const data = find2string(searched_string, false, false, act == LFUN_WORD_FIND_FORWARD, false, false, false); bool found = lyxfind(this, FuncRequest(LFUN_WORD_FIND, data)); if (found) dr.screenUpdate(Update::Force | Update::FitCursor); else dr.setMessage(_("Search string not found!")); break; } case LFUN_WORD_FIND: { docstring arg = cmd.argument(); if (arg.empty()) arg = searchRequestCache(); if (arg.empty()) { lyx::dispatch(FuncRequest(LFUN_DIALOG_SHOW, "findreplace")); break; } if (lyxfind(this, FuncRequest(act, arg))) dr.screenUpdate(Update::Force | Update::FitCursor); else dr.setMessage(_("Search string not found!")); setSearchRequestCache(arg); break; } case LFUN_SEARCH_STRING_SET: { docstring pattern = cmd.argument(); if (!pattern.empty()) { setSearchRequestCache(pattern); break; } if (cur.selection()) pattern = cur.selectionAsString(false); else if (!cur.inTexted()) break; // not suitable for selectWord at cursor else { pos_type spos = cur.pos(); cur.innerText()->selectWord(cur, WHOLE_WORD); pattern = cur.selectionAsString(false); cur.selection(false); cur.pos() = spos; } setSearchRequestCache(pattern); break; } case LFUN_WORD_REPLACE: { if (lyxreplace(this, cmd)) { dr.forceBufferUpdate(); dr.screenUpdate(Update::Force | Update::FitCursor); } else dr.setMessage(_("Search string not found!")); break; } case LFUN_WORD_FINDADV: { FindAndReplaceOptions opt; istringstream iss(to_utf8(cmd.argument())); iss >> opt; if (findAdv(this, opt)) { dr.screenUpdate(Update::Force | Update::FitCursor); cur.dispatched(); dispatched = true; } else { cur.undispatched(); dispatched = false; } break; } case LFUN_INDEX_TAG_ALL: { Inset * ins = cur.nextInset(); if (!ins || ins->lyxCode() != INDEX_CODE) // not at index inset break; // clone the index inset InsetIndex * cins = new InsetIndex(static_cast(*cur.nextInset())); // In order to avoid duplication, we compare the // LaTeX output if we find another index inset after // the word odocstringstream oilatex; otexstream oits(oilatex); OutputParams rp(&cur.buffer()->params().encoding()); ins->latex(oits, rp); cap::copyInsetToTemp(cur, cins); // move backwards into preceding word // skip over other index insets cur.backwardPosIgnoreCollapsed(); while (true) { if (cur.inset().lyxCode() == INDEX_CODE) cur.pop_back(); else if (cur.prevInset() && cur.prevInset()->lyxCode() == INDEX_CODE) cur.backwardPosIgnoreCollapsed(); else break; } if (!cur.inTexted()) { // Nothing to do here. setCursorFromInset(ins); break; } // Get word or selection cur.text()->selectWord(cur, WHOLE_WORD); docstring const searched_string = cur.selectionAsString(false); // Start from the beginning lyx::dispatch(FuncRequest(LFUN_BUFFER_BEGIN)); while (findOne(this, searched_string, false,// case sensitive true,// match whole word only true,// forward false,//find deleted false,//check wrap false,// auto-wrap false,// instant false// only selection )) { cur.clearSelection(); Inset * ains = cur.nextInset(); if (ains && ains->lyxCode() == INDEX_CODE) { // We have an index inset. // Check whether it has the same // LaTeX content and move on if so. odocstringstream filatex; otexstream fits(filatex); ains->latex(fits, rp); if (oilatex.str() == filatex.str()) continue; } // Paste the inset and possibly continue cap::pasteFromTemp(cursor(), cursor().buffer()->errorList("Paste")); } // Go back to start position. setCursorFromInset(ins); dr.screenUpdate(cur.result().screenUpdate()); if (cur.result().needBufferUpdate()) dr.forceBufferUpdate(); break; } case LFUN_MARK_OFF: cur.clearSelection(); dr.setMessage(from_utf8(N_("Mark off"))); break; case LFUN_MARK_ON: cur.clearSelection(); cur.setMark(true); dr.setMessage(from_utf8(N_("Mark on"))); break; case LFUN_MARK_TOGGLE: cur.selection(false); if (cur.mark()) { cur.setMark(false); dr.setMessage(from_utf8(N_("Mark removed"))); } else { cur.setMark(true); dr.setMessage(from_utf8(N_("Mark set"))); } cur.resetAnchor(); break; case LFUN_SCREEN_SHOW_CURSOR: showCursor(); break; case LFUN_SCREEN_RECENTER: recenter(); break; case LFUN_BIBTEX_DATABASE_ADD: { Cursor tmpcur = cur; findInset(tmpcur, { BIBTEX_CODE }, false); InsetBibtex * inset = getInsetByCode(tmpcur, BIBTEX_CODE); if (inset) { if (inset->addDatabase(cmd.argument())) dr.forceBufferUpdate(); } break; } case LFUN_BIBTEX_DATABASE_DEL: { Cursor tmpcur = cur; findInset(tmpcur, { BIBTEX_CODE }, false); InsetBibtex * inset = getInsetByCode(tmpcur, BIBTEX_CODE); if (inset) { if (inset->delDatabase(cmd.argument())) dr.forceBufferUpdate(); } break; } case LFUN_GRAPHICS_UNIFY: { cur.recordUndoFullBuffer(); DocIterator from, to; from = cur.selectionBegin(); to = cur.selectionEnd(); string const newId = cmd.getArg(0); bool fetchId = newId.empty(); //if we wait for groupId from first graphics inset InsetGraphicsParams grp_par; if (!fetchId) InsetGraphics::string2params(graphics::getGroupParams(buffer_, newId), buffer_, grp_par); if (!from.nextInset()) //move to closest inset from.forwardInset(); while (!from.empty() && from < to) { Inset * inset = from.nextInset(); if (!inset) break; InsetGraphics * ig = inset->asInsetGraphics(); if (ig) { InsetGraphicsParams inspar = ig->getParams(); if (fetchId) { grp_par = inspar; fetchId = false; } else { grp_par.filename = inspar.filename; ig->setParams(grp_par); } } from.forwardInset(); } dr.screenUpdate(Update::Force); //needed if triggered from context menu break; } case LFUN_BIBTEX_DATABASE_LIST: { docstring_list const & files = buffer_.getBibfiles(); bool first = true; docstring result; char const separator(os::path_separator()); for (auto const & file : files) { if (first) first = false; else result += separator; FileName const fn = buffer_.getBibfilePath(file); string const path = fn.realPath(); result += from_utf8(os::external_path(path)); } dr.setMessage(result); break; } case LFUN_STATISTICS: { DocIterator from, to; if (cur.selection()) { from = cur.selectionBegin(); to = cur.selectionEnd(); } else { from = doc_iterator_begin(&buffer_); to = doc_iterator_end(&buffer_); } buffer_.updateStatistics(from, to); int const words = buffer_.wordCount(); int const chars = buffer_.charCount(false); int const chars_blanks = buffer_.charCount(true); docstring message; if (cur.selection()) message = _("Statistics for the selection:"); else message = _("Statistics for the document:"); message += "\n\n"; if (words != 1) message += bformat(_("%1$d words"), words); else message += _("One word"); message += "\n"; if (chars_blanks != 1) message += bformat(_("%1$d characters"), chars_blanks); else message += _("One character"); message += "\n"; if (chars != 1) message += bformat(_("%1$d characters (no blanks)"), chars); else message += _("One character (no blanks)"); Alert::information(_("Statistics"), message); } break; case LFUN_SCREEN_UP: case LFUN_SCREEN_DOWN: { Point p = getPos(cur); // This code has been commented out to enable to scroll down a // document, even if there are large insets in it (see bug #5465). /*if (p.y_ < 0 || p.y_ > height_) { // The cursor is off-screen so recenter before proceeding. showCursor(); p = getPos(cur); }*/ int const scrolled = scroll(act == LFUN_SCREEN_UP ? -height_ : height_); if (act == LFUN_SCREEN_UP && scrolled > -height_) p = Point(0, 0); if (act == LFUN_SCREEN_DOWN && scrolled < height_) p = Point(width_, height_); bool const in_texted = cur.inTexted(); cur.setCursor(doc_iterator_begin(cur.buffer())); cur.selHandle(false); // Force an immediate computation of metrics because we need it below if (scrolled) processUpdateFlags(Update::Force); d->text_metrics_[&buffer_.text()].editXY(cur, p.x_, p.y_, true, act == LFUN_SCREEN_UP); //FIXME: what to do with cur.x_target()? bool update = in_texted && cur.bv().checkDepm(cur, old); cur.finishUndo(); if (update || cur.mark()) dr.screenUpdate(Update::Force | Update::FitCursor); if (update) dr.forceBufferUpdate(); break; } case LFUN_SCROLL: { string const scroll_type = cmd.getArg(0); int scroll_step = 0; if (scroll_type == "line") scroll_step = d->scrollbarParameters_.single_step; else if (scroll_type == "page") scroll_step = d->scrollbarParameters_.page_step; else return; string const scroll_quantity = cmd.getArg(1); if (scroll_quantity == "up") scrollUp(scroll_step); else if (scroll_quantity == "down") scrollDown(scroll_step); else { int const scroll_value = convert(scroll_quantity); if (scroll_value) scroll(scroll_step * scroll_value); } dr.screenUpdate(Update::ForceDraw); dr.forceBufferUpdate(); break; } case LFUN_SCREEN_UP_SELECT: { // FIXME: why is the algorithm different from LFUN_SCREEN_UP? cur.selHandle(true); if (isTopScreen()) { lyx::dispatch(FuncRequest(LFUN_BUFFER_BEGIN_SELECT)); cur.finishUndo(); break; } int y = getPos(cur).y_; int const ymin = y - height_ + defaultRowHeight(); while (y > ymin && cur.up()) y = getPos(cur).y_; cur.finishUndo(); dr.screenUpdate(Update::SinglePar | Update::FitCursor); break; } case LFUN_SCREEN_DOWN_SELECT: { // FIXME: why is the algorithm different from LFUN_SCREEN_DOWN? cur.selHandle(true); if (isBottomScreen()) { lyx::dispatch(FuncRequest(LFUN_BUFFER_END_SELECT)); cur.finishUndo(); break; } int y = getPos(cur).y_; int const ymax = y + height_ - defaultRowHeight(); while (y < ymax && cur.down()) y = getPos(cur).y_; cur.finishUndo(); dr.screenUpdate(Update::SinglePar | Update::FitCursor); break; } case LFUN_INSET_SELECT_ALL: { // true if all cells are selected bool const all_selected = cur.depth() > 1 && cur.selBegin().at_begin() && cur.selEnd().at_end(); // true if some cells are selected bool const cells_selected = cur.depth() > 1 && cur.selBegin().at_cell_begin() && cur.selEnd().at_cell_end(); if (all_selected || (cells_selected && !cur.inset().isTable())) { // All the contents of the inset if selected, or only at // least one cell but inset is not a table. // Select the inset from outside. cur.pop(); cur.resetAnchor(); cur.selection(true); cur.posForward(); } else if (cells_selected) { // At least one complete cell is selected and inset is a table. // Select all cells cur.idx() = 0; cur.pit() = 0; cur.pos() = 0; cur.resetAnchor(); cur.selection(true); cur.idx() = cur.lastidx(); cur.pit() = cur.lastpit(); cur.pos() = cur.lastpos(); } else { // select current cell cur.pit() = 0; cur.pos() = 0; cur.resetAnchor(); cur.selection(true); cur.pit() = cur.lastpit(); cur.pos() = cur.lastpos(); } cur.setCurrentFont(); dr.screenUpdate(Update::Force); break; } case LFUN_UNICODE_INSERT: { if (cmd.argument().empty()) break; FuncCode code = cur.inset().currentMode() == Inset::MATH_MODE ? LFUN_MATH_INSERT : LFUN_SELF_INSERT; int i = 0; while (true) { docstring const arg = from_utf8(cmd.getArg(i)); if (arg.empty()) break; if (!isHex(arg)) { LYXERR0("Not a hexstring: " << arg); ++i; continue; } char_type c = hexToInt(arg); if (c >= 32 && c < 0x10ffff) { LYXERR(Debug::KEY, "Inserting c: " << c); lyx::dispatch(FuncRequest(code, docstring(1, c))); } ++i; } break; } // This would be in Buffer class if only Cursor did not // require a bufferview case LFUN_INSET_FORALL: { docstring const name = from_utf8(cmd.getArg(0)); string const commandstr = cmd.getLongArg(1); FuncRequest const fr = lyxaction.lookupFunc(commandstr); // an arbitrary number to limit number of iterations const int max_iter = 100000; int iterations = 0; Cursor & bvcur = d->cursor_; Cursor const savecur = bvcur; bvcur.reset(); if (!bvcur.nextInset()) bvcur.forwardInset(); bvcur.beginUndoGroup(); while(bvcur && iterations < max_iter) { Inset * const ins = bvcur.nextInset(); if (!ins) break; docstring insname = ins->layoutName(); while (!insname.empty()) { if (insname == name || name == from_utf8("*")) { lyx::dispatch(fr, dr); // we do not want to remember selection here bvcur.clearSelection(); ++iterations; break; } size_t const i = insname.rfind(':'); if (i == string::npos) break; insname = insname.substr(0, i); } // if we did not delete the inset, skip it if (!bvcur.nextInset() || bvcur.nextInset() == ins) bvcur.forwardInset(); } bvcur = savecur; bvcur.fixIfBroken(); /** This is a dummy undo record only to remember the cursor * that has just been set; this will be used on a redo action * (see ticket #10097) * FIXME: a better fix would be to have a way to set the * cursor value directly, but I am not sure it is worth it. */ bvcur.recordUndo(); bvcur.endUndoGroup(); dr.screenUpdate(Update::Force); dr.forceBufferUpdate(); if (iterations >= max_iter) { dr.setError(true); dr.setMessage(bformat(_("`inset-forall' interrupted because number of actions is larger than %1$d"), max_iter)); } else dr.setMessage(bformat(_("Applied \"%1$s\" to %2$d insets"), from_utf8(commandstr), iterations)); break; } case LFUN_BRANCH_ADD_INSERT: { docstring branch_name = from_utf8(cmd.getArg(0)); if (branch_name.empty()) if (!Alert::askForText(branch_name, _("Branch name")) || branch_name.empty()) break; DispatchResult drtmp; buffer_.dispatch(FuncRequest(LFUN_BRANCH_ADD, branch_name), drtmp); if (drtmp.error()) { Alert::warning(_("Branch already exists"), drtmp.message()); break; } docstring const sep = buffer_.params().branchlist().separator(); for (docstring const & branch : getVectorFromString(branch_name, sep)) lyx::dispatch(FuncRequest(LFUN_BRANCH_INSERT, branch)); break; } case LFUN_KEYMAP_OFF: getIntl().keyMapOn(false); break; case LFUN_KEYMAP_PRIMARY: getIntl().keyMapPrim(); break; case LFUN_KEYMAP_SECONDARY: getIntl().keyMapSec(); break; case LFUN_KEYMAP_TOGGLE: getIntl().toggleKeyMap(); break; case LFUN_DIALOG_SHOW_NEW_INSET: { string const name = cmd.getArg(0); string data = trim(to_utf8(cmd.argument()).substr(name.size())); if (decodeInsetParam(name, data, buffer_)) lyx::dispatch(FuncRequest(LFUN_DIALOG_SHOW, name + " " + data)); else lyxerr << "Inset type '" << name << "' not recognized in LFUN_DIALOG_SHOW_NEW_INSET" << endl; break; } case LFUN_CITATION_INSERT: { if (argument.empty()) { lyx::dispatch(FuncRequest(LFUN_DIALOG_SHOW_NEW_INSET, "citation")); break; } // we can have one optional argument, delimited by '|' // citation-insert | // this should be enhanced to also support text_after // and citation style string arg = argument; string opt1; if (contains(argument, "|")) { arg = token(argument, '|', 0); opt1 = token(argument, '|', 1); } // if our cursor is directly in front of or behind a citation inset, // we will instead add the new key to it. Inset * inset = cur.nextInset(); if (!inset || inset->lyxCode() != CITE_CODE) inset = cur.prevInset(); if (inset && inset->lyxCode() == CITE_CODE) { InsetCitation * icite = static_cast(inset); if (icite->addKey(arg)) { dr.forceBufferUpdate(); dr.screenUpdate(Update::FitCursor | Update::SinglePar); if (!opt1.empty()) LYXERR0("Discarding optional argument to citation-insert."); } dispatched = true; break; } InsetCommandParams icp(CITE_CODE); icp["key"] = from_utf8(arg); if (!opt1.empty()) icp["before"] = from_utf8(opt1); icp["literal"] = from_ascii(InsetCitation::last_literal ? "true" : "false"); string icstr = InsetCommand::params2string(icp); FuncRequest fr(LFUN_INSET_INSERT, icstr); lyx::dispatch(fr); // if the request comes from the LyX server, then we // return a list of the undefined keys, in case some // action could be taken. if (cmd.origin() != FuncRequest::LYXSERVER) break; vector keys = getVectorFromString(from_utf8(arg)); vector::iterator it = keys.begin(); vector::const_iterator end = keys.end(); BiblioInfo const & bibInfo = buffer_.masterBibInfo(); const BiblioInfo::const_iterator bibEnd = bibInfo.end(); while (it != end) { if (bibInfo.find(*it) != bibEnd) { it = keys.erase(it); end = keys.end(); } else ++it; } dr.setMessage(getStringFromVector(keys)); break; } case LFUN_INSET_APPLY: { string const name = cmd.getArg(0); Inset * inset = editedInset(name); if (!inset) { FuncRequest fr(LFUN_INSET_INSERT, cmd.argument()); lyx::dispatch(fr); break; } // put cursor in front of inset. if (!setCursorFromInset(inset)) { LASSERT(false, break); } cur.recordUndo(); FuncRequest fr(LFUN_INSET_MODIFY, cmd.argument()); inset->dispatch(cur, fr); dr.screenUpdate(cur.result().screenUpdate()); if (cur.result().needBufferUpdate()) dr.forceBufferUpdate(); break; } // FIXME: // The change of language of buffer belongs to the Buffer class. // We have to do it here because we need a cursor for Undo. // When Undo::recordUndoBufferParams() is implemented someday // LFUN_BUFFER_LANGUAGE should be handled by the Buffer class. case LFUN_BUFFER_LANGUAGE: { Language const * oldL = buffer_.params().language; Language const * newL = languages.getLanguage(argument); if (!newL || oldL == newL) break; if (oldL->rightToLeft() == newL->rightToLeft()) { cur.recordUndoFullBuffer(); buffer_.changeLanguage(oldL, newL); cur.setCurrentFont(); dr.forceBufferUpdate(); } break; } case LFUN_FILE_INSERT_PLAINTEXT_PARA: case LFUN_FILE_INSERT_PLAINTEXT: { bool const as_paragraph = (act == LFUN_FILE_INSERT_PLAINTEXT_PARA); string const fname = to_utf8(cmd.argument()); if (!FileName::isAbsolute(fname)) dr.setMessage(_("Absolute filename expected.")); else insertPlaintextFile(FileName(fname), as_paragraph); break; } case LFUN_COPY: // With multi-cell table content, we pass down to the inset if (cur.inTexted() && cur.selection() && cur.selectionBegin().idx() != cur.selectionEnd().idx()) { buffer_.dispatch(cmd, dr); dispatched = dr.dispatched(); break; } cap::copySelection(cur); cur.message(_("Copy")); break; default: // OK, so try the Buffer itself... buffer_.dispatch(cmd, dr); dispatched = dr.dispatched(); break; } buffer_.undo().endUndoGroup(); dr.dispatched(dispatched); // NOTE: The code below is copied from Cursor::dispatch. If you // need to modify this, please update the other one too. // notify insets we just entered/left if (cursor() != old) { old.beginUndoGroup(); old.fixIfBroken(); bool badcursor = notifyCursorLeavesOrEnters(old, cursor()); if (badcursor) { cursor().fixIfBroken(); resetInlineCompletionPos(); } old.endUndoGroup(); } } docstring BufferView::requestSelection() { Cursor & cur = d->cursor_; LYXERR(Debug::SELECTION, "requestSelection: cur.selection: " << cur.selection()); if (!cur.selection()) { d->xsel_cache_.set = false; return docstring(); } LYXERR(Debug::SELECTION, "requestSelection: xsel_cache.set: " << d->xsel_cache_.set); if (!d->xsel_cache_.set || cur.top() != d->xsel_cache_.cursor || cur.realAnchor().top() != d->xsel_cache_.anchor) { d->xsel_cache_.cursor = cur.top(); d->xsel_cache_.anchor = cur.realAnchor().top(); d->xsel_cache_.set = cur.selection(); return cur.selectionAsString(false); } return docstring(); } void BufferView::clearSelection() { d->cursor_.clearSelection(); // Clear the selection buffer. Otherwise a subsequent // middle-mouse-button paste would use the selection buffer, // not the more current external selection. cap::clearSelection(); d->xsel_cache_.set = false; // The buffer did not really change, but this causes the // redraw we need because we cleared the selection above. buffer_.changed(false); } void BufferView::resize(int width, int height) { // Update from work area width_ = width; height_ = height; // Clear the paragraph height cache. d->par_height_.clear(); // Redo the metrics. updateMetrics(); } Inset const * BufferView::getCoveringInset(Text const & text, int x, int y) const { TextMetrics & tm = d->text_metrics_[&text]; Inset * inset = tm.checkInsetHit(x, y); if (!inset) return nullptr; if (!inset->descendable(*this)) // No need to go further down if the inset is not // descendable. return inset; size_t cell_number = inset->nargs(); // Check all the inner cell. for (size_t i = 0; i != cell_number; ++i) { Text const * inner_text = inset->getText(i); if (inner_text) { // Try deeper. Inset const * inset_deeper = getCoveringInset(*inner_text, x, y); if (inset_deeper) return inset_deeper; } } return inset; } Inset const * BufferView::clickableMathInset(InsetMathNest const * inset, CoordCache::Insets const & inset_cache, int x, int y) const { for (size_t i = 0; i < inset->nargs(); ++i) { MathData const & ar = inset->cell(i); for (size_t j = 0; j < ar.size(); ++j) { string const name = lyxerr.debugging(Debug::MATHED) ? insetName(ar[j].nucleus()->lyxCode()) : string(); LYXERR(Debug::MATHED, "Checking inset: " << name); if (ar[j].nucleus()->clickable(*this, x, y)) { if (inset_cache.covers(ar[j].nucleus(), x, y)) { LYXERR(Debug::MATHED, "Clickable inset: " << name); return ar[j].nucleus(); } } InsetMathNest const * imn = ar[j].nucleus()->asNestInset(); if (imn) { Inset const * inner = clickableMathInset(imn, inset_cache, x, y); if (inner) return inner; } } } return nullptr; } void BufferView::updateHoveredInset() const { // Get inset under mouse, if there is one. int const x = d->mouse_position_cache_.x_; int const y = d->mouse_position_cache_.y_; Inset const * covering_inset = getCoveringInset(buffer_.text(), x, y); if (covering_inset && covering_inset->asInsetMath()) { Inset const * inner_inset = clickableMathInset( covering_inset->asInsetMath()->asNestInset(), coordCache().getInsets(), x, y); if (inner_inset) covering_inset = inner_inset; } d->clickable_inset_ = covering_inset && covering_inset->clickable(*this, x, y); if (covering_inset == d->last_inset_) // Same inset, no need to do anything... return; bool need_redraw = false; if (d->last_inset_) { // Remove the hint on the last hovered inset (if any). need_redraw |= d->last_inset_->setMouseHover(this, false); d->last_inset_ = nullptr; } if (covering_inset && covering_inset->setMouseHover(this, true)) { need_redraw = true; // Only the insets that accept the hover state, do // clear the last_inset_, so only set the last_inset_ // member if the hovered setting is accepted. d->last_inset_ = covering_inset; } if (need_redraw) { LYXERR(Debug::PAINTING, "Mouse hover detected at: (" << d->mouse_position_cache_.x_ << ", " << d->mouse_position_cache_.y_ << ")"); d->update_strategy_ = DecorationUpdate; // This event (moving without mouse click) is not passed further. // This should be changed if it is further utilized. buffer_.changed(false); } } void BufferView::clearLastInset(Inset * inset) const { if (d->last_inset_ != inset) { LYXERR0("Wrong last_inset!"); LATTEST(false); } d->last_inset_ = nullptr; } bool BufferView::mouseSelecting() const { return d->mouse_selecting_; } void BufferView::mouseEventDispatch(FuncRequest const & cmd0) { //lyxerr << "[ cmd0 " << cmd0 << "]" << endl; // This is only called for mouse related events including // LFUN_FILE_OPEN generated by drag-and-drop. FuncRequest cmd = cmd0; Cursor old = cursor(); Cursor cur(*this); cur.push(buffer_.inset()); cur.selection(d->cursor_.selection()); // Either the inset under the cursor or the // surrounding Text will handle this event. // make sure we stay within the screen... cmd.set_y(min(max(cmd.y(), -1), height_)); d->mouse_position_cache_.x_ = cmd.x(); d->mouse_position_cache_.y_ = cmd.y(); d->mouse_selecting_ = cmd.action() == LFUN_MOUSE_MOTION && cmd.button() == mouse_button::button1; if (cmd.action() == LFUN_MOUSE_MOTION && cmd.button() == mouse_button::none) { updateHoveredInset(); return; } // Build temporary cursor. Inset * inset = d->text_metrics_[&buffer_.text()].editXY(cur, cmd.x(), cmd.y()); if (inset) { // If inset is not editable, cur.pos() might point behind the // inset (depending on cmd.x(), cmd.y()). This is needed for // editing to fix bug 9628, but e.g. the context menu needs a // cursor in front of the inset. if ((inset->hasSettings() || !inset->contextMenuName().empty() || inset->lyxCode() == SEPARATOR_CODE) && cur.nextInset() != inset && cur.prevInset() == inset) cur.posBackward(); } else if (cur.inTexted() && cur.pos() && cur.paragraph().isEnvSeparator(cur.pos() - 1)) { // Always place cursor in front of a separator inset. cur.posBackward(); } // Put anchor at the same position. cur.resetAnchor(); cur.beginUndoGroup(); // Try to dispatch to an non-editable inset near this position // via the temp cursor. If the inset wishes to change the real // cursor it has to do so explicitly by using // cur.bv().cursor() = cur; (or similar) if (inset) inset->dispatch(cur, cmd); // Now dispatch to the temporary cursor. If the real cursor should // be modified, the inset's dispatch has to do so explicitly. if (!inset || !cur.result().dispatched()) cur.dispatch(cmd); // Notify left insets if (cur != old) { bool badcursor = old.fixIfBroken() || cur.fixIfBroken(); badcursor = badcursor || notifyCursorLeavesOrEnters(old, cur); if (badcursor) cursor().fixIfBroken(); } cur.endUndoGroup(); // Do we have a selection? theSelection().haveSelection(cursor().selection()); if (cur.needBufferUpdate() || buffer().needUpdate()) { cur.clearBufferUpdate(); buffer().updateBuffer(); } // If the command has been dispatched, if (cur.result().dispatched() || cur.result().screenUpdate()) processUpdateFlags(cur.result().screenUpdate()); } int BufferView::minVisiblePart() { return 2 * defaultRowHeight(); } int BufferView::scroll(int pixels) { if (pixels > 0) return scrollDown(pixels); if (pixels < 0) return scrollUp(-pixels); return 0; } int BufferView::scrollDown(int pixels) { Text * text = &buffer_.text(); TextMetrics & tm = d->text_metrics_[text]; int const ymax = height_ + pixels; while (true) { pair last = tm.last(); int bottom_pos = last.second->position() + last.second->descent(); if (lyxrc.scroll_below_document) bottom_pos += height_ - minVisiblePart(); if (last.first + 1 == int(text->paragraphs().size())) { if (bottom_pos <= height_) return 0; pixels = min(pixels, bottom_pos - height_); break; } if (bottom_pos > ymax) break; tm.newParMetricsDown(); } d->anchor_ypos_ -= pixels; return -pixels; } int BufferView::scrollUp(int pixels) { Text * text = &buffer_.text(); TextMetrics & tm = d->text_metrics_[text]; int ymin = - pixels; while (true) { pair first = tm.first(); int top_pos = first.second->position() - first.second->ascent(); if (first.first == 0) { if (top_pos >= 0) return 0; pixels = min(pixels, - top_pos); break; } if (top_pos < ymin) break; tm.newParMetricsUp(); } d->anchor_ypos_ += pixels; return pixels; } bool BufferView::setCursorFromRow(int row) { TexRow::TextEntry start, end; tie(start,end) = buffer_.texrow().getEntriesFromRow(row); LYXERR(Debug::OUTFILE, "setCursorFromRow: for row " << row << ", TexRow has found " "start (id=" << start.id << ",pos=" << start.pos << "), " "end (id=" << end.id << ",pos=" << end.pos << ")"); return setCursorFromEntries(start, end); } bool BufferView::setCursorFromEntries(TexRow::TextEntry start, TexRow::TextEntry end) { DocIterator dit_start, dit_end; tie(dit_start,dit_end) = TexRow::getDocIteratorsFromEntries(start, end, buffer_); if (!dit_start) return false; // Setting selection start d->cursor_.clearSelection(); setCursor(dit_start); // Setting selection end if (dit_end) { d->cursor_.resetAnchor(); setCursorSelectionTo(dit_end); } return true; } bool BufferView::setCursorFromInset(Inset const * inset) { // are we already there? if (cursor().nextInset() == inset) return true; // Inset is not at cursor position. Find it in the document. Cursor cur(*this); cur.reset(); while (cur && cur.nextInset() != inset) cur.forwardInset(); if (cur) { setCursor(cur); return true; } return false; } void BufferView::gotoLabel(docstring const & label) { FuncRequest action; bool have_inactive = false; for (Buffer const * buf : buffer().allRelatives()) { // find label for (TocItem const & item : *buf->tocBackend().toc("label")) { if (label == item.str() && item.isOutput()) { lyx::dispatch(item.action()); return; } // If we find an inactive label, save it for the case // that no active one is there if (label == item.str() && !have_inactive) { have_inactive = true; action = item.action(); } } } // We only found an inactive label. Go there. if (have_inactive) lyx::dispatch(action); } TextMetrics const & BufferView::textMetrics(Text const * t) const { return const_cast(this)->textMetrics(t); } TextMetrics & BufferView::textMetrics(Text const * t) { LBUFERR(t); TextMetricsCache::iterator tmc_it = d->text_metrics_.find(t); if (tmc_it == d->text_metrics_.end()) { tmc_it = d->text_metrics_.emplace(std::piecewise_construct, std::forward_as_tuple(t), std::forward_as_tuple(this, const_cast(t))).first; } return tmc_it->second; } ParagraphMetrics const & BufferView::parMetrics(Text const * t, pit_type pit) const { return textMetrics(t).parMetrics(pit); } int BufferView::workHeight() const { return height_; } void BufferView::setCursor(DocIterator const & dit) { d->cursor_.reset(); size_t const n = dit.depth(); for (size_t i = 0; i < n; ++i) dit[i].inset().edit(d->cursor_, true); d->cursor_.setCursor(dit); d->cursor_.selection(false); d->cursor_.setCurrentFont(); // FIXME // It seems on general grounds as if this is probably needed, but // it is not yet clear. // See bug #7394 and r38388. // d->cursor.resetAnchor(); } void BufferView::setCursorSelectionTo(DocIterator const & dit) { size_t const n = dit.depth(); for (size_t i = 0; i < n; ++i) dit[i].inset().edit(d->cursor_, true); d->cursor_.selection(true); d->cursor_.setCursorSelectionTo(dit); d->cursor_.setCurrentFont(); } bool BufferView::checkDepm(Cursor & cur, Cursor & old) { // Would be wrong to delete anything if we have a selection. if (cur.selection()) return false; bool need_anchor_change = false; bool changed = Text::deleteEmptyParagraphMechanism(cur, old, need_anchor_change); if (need_anchor_change) cur.resetAnchor(); if (!changed) return false; d->cursor_ = cur; // we would rather not do this here, but it needs to be done before // the changed() signal is sent. buffer_.updateBuffer(); buffer_.changed(true); return true; } bool BufferView::mouseSetCursor(Cursor & cur, bool const select) { LASSERT(&cur.bv() == this, return false); if (!select) // this event will clear selection so we save selection for // persistent selection cap::saveSelection(cursor()); d->cursor_.macroModeClose(); // If a macro has been finalized, the cursor might have been broken cur.fixIfBroken(); // Has the cursor just left the inset? bool const leftinset = (&d->cursor_.inset() != &cur.inset()); if (leftinset) d->cursor_.fixIfBroken(); // do the dEPM magic if needed // FIXME: (1) move this to InsetText::notifyCursorLeaves? // FIXME: (2) if we had a working InsetText::notifyCursorLeaves, // the leftinset bool would not be necessary (badcursor instead). bool update = leftinset; if (select) { d->cursor_.setSelection(); d->cursor_.setCursorSelectionTo(cur); } else { if (d->cursor_.inTexted()) update |= checkDepm(cur, d->cursor_); d->cursor_.resetAnchor(); d->cursor_.setCursor(cur); d->cursor_.clearSelection(); } d->cursor_.boundary(cur.boundary()); d->cursor_.finishUndo(); d->cursor_.setCurrentFont(); if (update) cur.forceBufferUpdate(); return update; } void BufferView::putSelectionAt(DocIterator const & cur, int length, bool backwards) { d->cursor_.clearSelection(); setCursor(cur); if (length) { if (backwards) { d->cursor_.pos() += length; d->cursor_.setSelection(d->cursor_, -length); } else d->cursor_.setSelection(d->cursor_, length); } } bool BufferView::selectIfEmpty(DocIterator & cur) { if ((cur.inTexted() && !cur.paragraph().empty()) || (cur.inMathed() && !cur.cell().empty())) return false; pit_type const beg_pit = cur.pit(); if (beg_pit > 0) { // The paragraph associated to this item isn't // the first one, so it can be selected cur.backwardPos(); } else { // We have to resort to select the space between the // end of this item and the begin of the next one cur.forwardPos(); } if (cur.empty()) { // If it is the only item in the document, // nothing can be selected return false; } pit_type const end_pit = cur.pit(); pos_type const end_pos = cur.pos(); d->cursor_.clearSelection(); d->cursor_.reset(); d->cursor_.setCursor(cur); d->cursor_.pit() = beg_pit; d->cursor_.pos() = 0; d->cursor_.selection(false); d->cursor_.resetAnchor(); d->cursor_.pit() = end_pit; d->cursor_.pos() = end_pos; d->cursor_.setSelection(); return true; } Cursor & BufferView::cursor() { return d->cursor_; } Cursor const & BufferView::cursor() const { return d->cursor_; } bool BufferView::singleParUpdate() { Text & buftext = buffer_.text(); pit_type const bottom_pit = d->cursor_.bottom().pit(); TextMetrics & tm = textMetrics(&buftext); Dimension const old_dim = tm.parMetrics(bottom_pit).dim(); // make sure inline completion pointer is ok if (d->inlineCompletionPos_.fixIfBroken()) d->inlineCompletionPos_ = DocIterator(); // In Single Paragraph mode, rebreak only // the (main text, not inset!) paragraph containing the cursor. // (if this paragraph contains insets etc., rebreaking will // recursively descend) tm.redoParagraph(bottom_pit); ParagraphMetrics & pm = tm.parMetrics(bottom_pit); if (pm.height() != old_dim.height()) { // Paragraph height has changed so we cannot proceed to // the singlePar optimisation. return false; } // Since position() points to the baseline of the first row, we // may have to update it. See ticket #11601 for an example where // the height does not change but the ascent does. pm.setPosition(pm.position() - old_dim.ascent() + pm.ascent()); tm.updatePosCache(bottom_pit); LYXERR(Debug::PAINTING, "\ny1: " << pm.position() - pm.ascent() << " y2: " << pm.position() + pm.descent() << " pit: " << bottom_pit << " singlepar: 1"); return true; } void BufferView::updateMetrics() { updateMetrics(d->update_flags_); d->update_strategy_ = FullScreenUpdate; } void BufferView::updateMetrics(Update::flags & update_flags) { if (height_ == 0 || width_ == 0) return; Text & buftext = buffer_.text(); pit_type const npit = int(buftext.paragraphs().size()); // Clear out the position cache in case of full screen redraw, d->coord_cache_.clear(); d->math_rows_.clear(); // Clear out paragraph metrics to avoid having invalid metrics // in the cache from paragraphs not relayouted below // The complete text metrics will be redone. d->text_metrics_.clear(); TextMetrics & tm = textMetrics(&buftext); // make sure inline completion pointer is ok if (d->inlineCompletionPos_.fixIfBroken()) d->inlineCompletionPos_ = DocIterator(); if (d->anchor_pit_ >= npit) // The anchor pit must have been deleted... d->anchor_pit_ = npit - 1; // Rebreak anchor paragraph. tm.redoParagraph(d->anchor_pit_); ParagraphMetrics & anchor_pm = tm.parMetrics(d->anchor_pit_); // position anchor if (d->anchor_pit_ == 0) { int scrollRange = d->scrollbarParameters_.max - d->scrollbarParameters_.min; // Complete buffer visible? Then it's easy. if (scrollRange == 0) d->anchor_ypos_ = anchor_pm.ascent(); else { // avoid empty space above the first row d->anchor_ypos_ = min(d->anchor_ypos_, anchor_pm.ascent()); } } anchor_pm.setPosition(d->anchor_ypos_); tm.updatePosCache(d->anchor_pit_); LYXERR(Debug::PAINTING, "metrics: " << " anchor pit = " << d->anchor_pit_ << " anchor ypos = " << d->anchor_ypos_); // Redo paragraphs above anchor if necessary. int y1 = d->anchor_ypos_ - anchor_pm.ascent(); // We are now just above the anchor paragraph. pit_type pit1 = d->anchor_pit_ - 1; for (; pit1 >= 0 && y1 >= 0; --pit1) { tm.redoParagraph(pit1); ParagraphMetrics & pm = tm.parMetrics(pit1); y1 -= pm.descent(); // Save the paragraph position in the cache. pm.setPosition(y1); tm.updatePosCache(pit1); y1 -= pm.ascent(); } // Redo paragraphs below the anchor if necessary. int y2 = d->anchor_ypos_ + anchor_pm.descent(); // We are now just below the anchor paragraph. pit_type pit2 = d->anchor_pit_ + 1; for (; pit2 < npit && y2 <= height_; ++pit2) { tm.redoParagraph(pit2); ParagraphMetrics & pm = tm.parMetrics(pit2); y2 += pm.ascent(); // Save the paragraph position in the cache. pm.setPosition(y2); tm.updatePosCache(pit2); y2 += pm.descent(); } LYXERR(Debug::PAINTING, "Metrics: " << " anchor pit = " << d->anchor_pit_ << " anchor ypos = " << d->anchor_ypos_ << " y1 = " << y1 << " y2 = " << y2 << " pit1 = " << pit1 << " pit2 = " << pit2); // metrics is done, full drawing is necessary now update_flags = (update_flags & ~Update::Force) | Update::ForceDraw; // Now update the positions of insets in the cache. updatePosCache(); if (lyxerr.debugging(Debug::WORKAREA)) { LYXERR(Debug::WORKAREA, "BufferView::updateMetrics"); d->coord_cache_.dump(); } } void BufferView::updatePosCache() { // this is the "nodraw" drawing stage: only set the positions of the // insets in metrics cache. frontend::NullPainter np; draw(np, false); } void BufferView::insertLyXFile(FileName const & fname, bool const ignorelang) { LASSERT(d->cursor_.inTexted(), return); // Get absolute path of file and add ".lyx" // to the filename if necessary FileName filename = fileSearch(string(), fname.absFileName(), "lyx"); docstring const disp_fn = makeDisplayPath(filename.absFileName()); // emit message signal. message(bformat(_("Inserting document %1$s..."), disp_fn)); docstring res; Buffer buf(filename.absFileName(), false); if (buf.loadLyXFile() == Buffer::ReadSuccess) { ErrorList & el = buffer_.errorList("Parse"); // Copy the inserted document error list into the current buffer one. el = buf.errorList("Parse"); ParagraphList & pars = buf.paragraphs(); if (ignorelang) // set main language of imported file to context language buf.changeLanguage(buf.language(), d->cursor_.getFont().language()); buffer_.undo().recordUndo(d->cursor_); cap::pasteParagraphList(d->cursor_, pars, buf.params().documentClassPtr(), buf.params().authors(), el); res = _("Document %1$s inserted."); } else { res = _("Could not insert document %1$s"); } buffer_.changed(true); // emit message signal. message(bformat(res, disp_fn)); } Point BufferView::coordOffset(DocIterator const & dit) const { int x = 0; int y = 0; int lastw = 0; // Addup contribution of nested insets, from inside to outside, // keeping the outer paragraph for a special handling below for (size_t i = dit.depth() - 1; i >= 1; --i) { CursorSlice const & sl = dit[i]; int xx = 0; int yy = 0; // get relative position inside sl.inset() sl.inset().cursorPos(*this, sl, dit.boundary() && (i + 1 == dit.depth()), xx, yy); // Make relative position inside of the edited inset relative to sl.inset() x += xx; y += yy; // In case of an RTL inset, the edited inset will be positioned to the left // of xx:yy if (sl.text()) { bool boundary_i = dit.boundary() && i + 1 == dit.depth(); bool rtl = textMetrics(sl.text()).isRTL(sl, boundary_i); if (rtl) x -= lastw; } // remember width for the case that sl.inset() is positioned in an RTL inset lastw = sl.inset().dimension(*this).wid; //lyxerr << "Cursor::getPos, i: " // << i << " x: " << xx << " y: " << y << endl; } // Add contribution of initial rows of outermost paragraph CursorSlice const & sl = dit[0]; TextMetrics const & tm = textMetrics(sl.text()); ParagraphMetrics const & pm = tm.parMetrics(sl.pit()); LBUFERR(!pm.rows().empty()); y -= pm.rows()[0].ascent(); #if 1 // FIXME: document this mess size_t rend; if (sl.pos() > 0 && dit.depth() == 1) { int pos = sl.pos(); if (pos && dit.boundary()) --pos; // lyxerr << "coordOffset: boundary:" << dit.boundary() << " depth:" << dit.depth() << " pos:" << pos << " sl.pos:" << sl.pos() << endl; rend = pm.pos2row(pos); } else rend = pm.pos2row(sl.pos()); #else size_t rend = pm.pos2row(sl.pos()); #endif for (size_t rit = 0; rit != rend; ++rit) y += pm.rows()[rit].height(); y += pm.rows()[rend].ascent(); TextMetrics const & bottom_tm = textMetrics(dit.bottom().text()); // Make relative position from the nested inset now bufferview absolute. int xx = bottom_tm.cursorX(dit.bottom(), dit.boundary() && dit.depth() == 1); x += xx; // In the RTL case place the nested inset at the left of the cursor in // the outer paragraph bool boundary_1 = dit.boundary() && 1 == dit.depth(); bool rtl = bottom_tm.isRTL(dit.bottom(), boundary_1); if (rtl) x -= lastw; return Point(x, y); } Point BufferView::getPos(DocIterator const & dit) const { if (!paragraphVisible(dit)) return Point(-1, -1); CursorSlice const & bot = dit.bottom(); TextMetrics const & tm = textMetrics(bot.text()); // offset from outer paragraph Point p = coordOffset(dit); p.y_ += tm.parMetrics(bot.pit()).position(); return p; } bool BufferView::paragraphVisible(DocIterator const & dit) const { CursorSlice const & bot = dit.bottom(); TextMetrics const & tm = textMetrics(bot.text()); return tm.contains(bot.pit()); } void BufferView::caretPosAndDim(Point & p, Dimension & dim) const { Cursor const & cur = cursor(); if (cur.inMathed()) { MathRow const & mrow = mathRow(&cur.cell()); dim = mrow.caret_dim; } else { Font const font = cur.real_current_font; frontend::FontMetrics const & fm = theFontMetrics(font); // lineWidth() can be 0 to mean 'thin line' on HiDpi, but the // caret drawing code is not prepared for that. dim.wid = max(fm.lineWidth(), 1); dim.asc = fm.maxAscent(); dim.des = fm.maxDescent(); } if (lyxrc.cursor_width > 0) dim.wid = lyxrc.cursor_width; p = getPos(cur); // center fat carets horizontally p.x_ -= dim.wid / 2; // p is top-left p.y_ -= dim.asc; } void BufferView::buildCaretGeometry(bool complet) { Point p; Dimension dim; caretPosAndDim(p, dim); Cursor const & cur = d->cursor_; Font const & realfont = cur.real_current_font; frontend::FontMetrics const & fm = theFontMetrics(realfont.fontInfo()); bool const isrtl = realfont.isVisibleRightToLeft(); int const dir = isrtl ? -1 : 1; frontend::CaretGeometry & cg = d->caret_geometry_; cg.shapes.clear(); // The caret itself, slanted for italics in text edit mode except // for selections because the selection rect does not slant bool const slant = fm.italic() && cur.inTexted() && !cur.selection(); double const slope = slant ? fm.italicSlope() : 0; cg.shapes.push_back( {{iround(p.x_ + dim.asc * slope), p.y_}, {iround(p.x_ - dim.des * slope), p.y_ + dim.height()}, {iround(p.x_ + dir * dim.wid - dim.des * slope), p.y_ + dim.height()}, {iround(p.x_ + dir * dim.wid + dim.asc * slope), p.y_}} ); // The language indicator _| (if needed) Language const * doclang = buffer().params().language; if (!((realfont.language() == doclang && isrtl == doclang->rightToLeft()) || realfont.language() == latex_language)) { int const lx = dim.height() / 3; int const xx = iround(p.x_ - dim.des * slope); int const yy = p.y_ + dim.height(); cg.shapes.push_back( {{xx, yy - dim.wid}, {xx + dir * (dim.wid + lx - 1), yy - dim.wid}, {xx + dir * (dim.wid + lx - 1), yy}, {xx, yy}} ); } // The completion triangle |> (if needed) if (complet) { int const m = p.y_ + dim.height() / 2; int const d = dim.height() / 8; // offset for slanted carret int const sx = iround((dim.asc - (dim.height() / 2 - d)) * slope); // starting position x int const xx = p.x_ + dir * dim.wid + sx; cg.shapes.push_back( {{xx, m - d}, {xx + dir * d, m}, {xx, m + d}, {xx, m + d - dim.wid}, {xx + dir * d - dim.wid, m}, {xx, m - d + dim.wid}} ); } // compute extremal x values cg.left = 1000000; cg.right = -1000000; cg.top = 1000000; cg.bottom = -1000000; for (auto const & shape : cg.shapes) for (Point const & p : shape) { cg.left = min(cg.left, p.x_); cg.right = max(cg.right, p.x_); cg.top = min(cg.top, p.y_); cg.bottom = max(cg.bottom, p.y_); } } frontend::CaretGeometry const & BufferView::caretGeometry() const { return d->caret_geometry_; } bool BufferView::caretInView() const { if (!paragraphVisible(cursor())) return false; Point p; Dimension dim; caretPosAndDim(p, dim); // does the cursor touch the screen ? if (p.y_ + dim.height() < 0 || p.y_ >= workHeight()) return false; return true; } int BufferView::horizScrollOffset() const { return d->horiz_scroll_offset_; } int BufferView::horizScrollOffset(Text const * text, pit_type pit, pos_type pos) const { // Is this a row that is currently scrolled? if (!d->current_row_slice_.empty() && &text->inset() == d->current_row_slice_.inset().asInsetText() && pit == d->current_row_slice_.pit() && pos == d->current_row_slice_.pos()) return d->horiz_scroll_offset_; return 0; } void BufferView::setCurrentRowSlice(CursorSlice const & rowSlice) { // nothing to do if the cursor was already on this row if (d->current_row_slice_ == rowSlice) return; // if the (previous) current row was scrolled, we have to // remember it in order to repaint it next time. if (d->horiz_scroll_offset_ != 0) { // search the old row in cache and mark it changed for (auto & tm_pair : d->text_metrics_) { if (&tm_pair.first->inset() == rowSlice.inset().asInsetText()) { tm_pair.second.setRowChanged(rowSlice.pit(), rowSlice.pos()); // We found it, no need to continue. break; } } } // Since we changed row, the scroll offset is not valid anymore d->horiz_scroll_offset_ = 0; d->current_row_slice_ = rowSlice; } void BufferView::checkCursorScrollOffset() { CursorSlice rowSlice = d->cursor_.bottom(); TextMetrics const & tm = textMetrics(rowSlice.text()); // Stop if metrics have not been computed yet, since it means // that there is nothing to do. if (!tm.contains(rowSlice.pit())) return; ParagraphMetrics const & pm = tm.parMetrics(rowSlice.pit()); Row const & row = pm.getRow(rowSlice.pos(), d->cursor_.boundary() && rowSlice == d->cursor_.top()); rowSlice.pos() = row.pos(); // Set the row on which the cursor lives. setCurrentRowSlice(rowSlice); // Current x position of the cursor in pixels int cur_x = getPos(d->cursor_).x_; // Horizontal scroll offset of the cursor row in pixels int offset = d->horiz_scroll_offset_; int const MARGIN = 2 * theFontMetrics(d->cursor_.real_current_font).em() + row.right_margin; if (row.right_x() <= workWidth() - row.right_margin) { // Row is narrower than the work area, no offset needed. offset = 0; } else { if (cur_x - offset < MARGIN) { // cursor would be too far right offset = cur_x - MARGIN; } else if (cur_x - offset > workWidth() - MARGIN) { // cursor would be too far left offset = cur_x - workWidth() + MARGIN; } // Correct the offset to make sure that we do not scroll too much if (offset < 0) offset = 0; if (row.right_x() - offset < workWidth() - row.right_margin) offset = row.right_x() - workWidth() + row.right_margin; } //lyxerr << "cur_x=" << cur_x << ", offset=" << offset << ", row.wid=" << row.width() << ", margin=" << MARGIN << endl; if (offset != d->horiz_scroll_offset_) { LYXERR(Debug::PAINTING, "Horiz. scroll offset changed from " << d->horiz_scroll_offset_ << " to " << offset); row.changed(true); if (d->update_strategy_ == NoScreenUpdate) d->update_strategy_ = SingleParUpdate; } d->horiz_scroll_offset_ = offset; } bool BufferView::busy() const { return buffer().undo().activeUndoGroup(); } void BufferView::draw(frontend::Painter & pain, bool paint_caret) { if (height_ == 0 || width_ == 0) return; LYXERR(Debug::PAINTING, (pain.isNull() ? "\t\t--- START NODRAW ---" : "\t\t*** START DRAWING ***")); Text & text = buffer_.text(); TextMetrics const & tm = d->text_metrics_[&text]; int const y = tm.first().second->position(); PainterInfo pi(this, pain); // Check whether the row where the cursor lives needs to be scrolled. // Update the drawing strategy if needed. checkCursorScrollOffset(); switch (d->update_strategy_) { case NoScreenUpdate: // no screen painting is actually needed. In nodraw stage // however, the different coordinates of insets and paragraphs // needs to be updated. LYXERR(Debug::PAINTING, "Strategy: NoScreenUpdate"); if (pain.isNull()) { pi.full_repaint = true; tm.draw(pi, 0, y); } else { pi.full_repaint = false; tm.draw(pi, 0, y); } break; case SingleParUpdate: pi.full_repaint = false; LYXERR(Debug::PAINTING, "Strategy: SingleParUpdate"); // In general, only the current row of the outermost paragraph // will be redrawn. Particular cases where selection spans // multiple paragraph are correctly detected in TextMetrics. tm.draw(pi, 0, y); break; case DecorationUpdate: // FIXME: We should also distinguish DecorationUpdate to avoid text // drawing if possible. This is not possible to do easily right now // because of the single backing pixmap. case FullScreenUpdate: LYXERR(Debug::PAINTING, ((d->update_strategy_ == FullScreenUpdate) ? "Strategy: FullScreenUpdate" : "Strategy: DecorationUpdate")); // The whole screen, including insets, will be refreshed. pi.full_repaint = true; // Clear background. pain.fillRectangle(0, 0, width_, height_, pi.backgroundColor(&buffer_.inset())); // Draw everything. tm.draw(pi, 0, y); // and possibly grey out below pair lastpm = tm.last(); int const y2 = lastpm.second->position() + lastpm.second->descent(); if (y2 < height_) { Color color = buffer().isInternal() ? Color_background : Color_bottomarea; pain.fillRectangle(0, y2, width_, height_ - y2, color); } break; } LYXERR(Debug::PAINTING, (pain.isNull() ? "\t\t --- END NODRAW ---" : "\t\t *** END DRAWING ***")); // The scrollbar needs an update. // FIXME: does it always? see ticket #11947. updateScrollbarParameters(); // Normalize anchor for next time pair firstpm = tm.first(); pair lastpm = tm.last(); for (pit_type pit = firstpm.first; pit <= lastpm.first; ++pit) { ParagraphMetrics const & pm = tm.parMetrics(pit); if (pm.position() + pm.descent() > 0) { if (d->anchor_pit_ != pit || d->anchor_ypos_ != pm.position()) LYXERR(Debug::PAINTING, "Found new anchor pit = " << d->anchor_pit_ << " anchor ypos = " << d->anchor_ypos_); d->anchor_pit_ = pit; d->anchor_ypos_ = pm.position(); break; } } if (!pain.isNull()) { // reset the update flags, everything has been done d->update_flags_ = Update::None; } // If a caret has to be painted, mark its text row as dirty to //make sure that it will be repainted on next redraw. /* FIXME: investigate whether this can be avoided when the cursor did not * move at all */ if (paint_caret) { Cursor cur(d->cursor_); while (cur.depth() > 1) { if (!cur.inTexted()) break; TextMetrics const & tm = textMetrics(cur.text()); if (d->caret_geometry_.left >= tm.origin().x_ && d->caret_geometry_.right <= tm.origin().x_ + tm.dim().width()) break; cur.pop(); } cur.textRow().changed(true); } } void BufferView::message(docstring const & msg) { if (d->gui_) d->gui_->message(msg); } void BufferView::showDialog(string const & name) { if (d->gui_) d->gui_->showDialog(name, string()); } void BufferView::showDialog(string const & name, string const & data, Inset * inset) { if (d->gui_) d->gui_->showDialog(name, data, inset); } void BufferView::updateDialog(string const & name, string const & data) { if (d->gui_) d->gui_->updateDialog(name, data); } void BufferView::setGuiDelegate(frontend::GuiBufferViewDelegate * gui) { d->gui_ = gui; } // FIXME: Move this out of BufferView again docstring BufferView::contentsOfPlaintextFile(FileName const & fname) { if (!fname.isReadableFile()) { docstring const error = from_ascii(strerror(errno)); docstring const file = makeDisplayPath(fname.absFileName(), 50); docstring const text = bformat(_("Could not read the specified document\n" "%1$s\ndue to the error: %2$s"), file, error); Alert::error(_("Could not read file"), text); return docstring(); } if (!fname.isReadableFile()) { docstring const file = makeDisplayPath(fname.absFileName(), 50); docstring const text = bformat(_("%1$s\n is not readable."), file); Alert::error(_("Could not open file"), text); return docstring(); } // FIXME UNICODE: We don't know the encoding of the file docstring file_content = fname.fileContents("UTF-8"); if (file_content.empty()) { Alert::error(_("Reading not UTF-8 encoded file"), _("The file is not UTF-8 encoded.\n" "It will be read as local 8Bit-encoded.\n" "If this does not give the correct result\n" "then please change the encoding of the file\n" "to UTF-8 with a program other than LyX.\n")); file_content = fname.fileContents("local8bit"); } return normalize_c(file_content); } void BufferView::insertPlaintextFile(FileName const & f, bool asParagraph) { docstring const tmpstr = contentsOfPlaintextFile(f); if (tmpstr.empty()) return; Cursor & cur = cursor(); cap::replaceSelection(cur); buffer_.undo().recordUndo(cur); if (asParagraph) cur.innerText()->insertStringAsParagraphs(cur, tmpstr, cur.current_font); else cur.innerText()->insertStringAsLines(cur, tmpstr, cur.current_font); buffer_.changed(true); } docstring const & BufferView::inlineCompletion() const { return d->inlineCompletion_; } size_t BufferView::inlineCompletionUniqueChars() const { return d->inlineCompletionUniqueChars_; } DocIterator const & BufferView::inlineCompletionPos() const { return d->inlineCompletionPos_; } void BufferView::resetInlineCompletionPos() { d->inlineCompletionPos_ = DocIterator(); } bool samePar(DocIterator const & a, DocIterator const & b) { if (a.empty() && b.empty()) return true; if (a.empty() || b.empty()) return false; if (a.depth() != b.depth()) return false; return &a.innerParagraph() == &b.innerParagraph(); } void BufferView::setInlineCompletion(Cursor const & cur, DocIterator const & pos, docstring const & completion, size_t uniqueChars) { uniqueChars = min(completion.size(), uniqueChars); bool changed = d->inlineCompletion_ != completion || d->inlineCompletionUniqueChars_ != uniqueChars; bool singlePar = true; d->inlineCompletion_ = completion; d->inlineCompletionUniqueChars_ = min(completion.size(), uniqueChars); //lyxerr << "setInlineCompletion pos=" << pos << " completion=" << completion << " uniqueChars=" << uniqueChars << std::endl; // at new position? DocIterator const & old = d->inlineCompletionPos_; if (old != pos) { //lyxerr << "inlineCompletionPos changed" << std::endl; // old or pos are in another paragraph? if ((!samePar(cur, pos) && !pos.empty()) || (!samePar(cur, old) && !old.empty())) { singlePar = false; //lyxerr << "different paragraph" << std::endl; } d->inlineCompletionPos_ = pos; } // set update flags if (changed) { if (singlePar && !(cur.result().screenUpdate() & Update::Force)) cur.screenUpdateFlags(cur.result().screenUpdate() | Update::SinglePar); else cur.screenUpdateFlags(cur.result().screenUpdate() | Update::Force); } } bool BufferView::clickableInset() const { return d->clickable_inset_; } } // namespace lyx