X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2FBufferView.C;h=7e9eec803e7173cda53ffdd0f30cf38768c05db7;hb=8a5d04fd84e344a1ba1cfd3f5cce67d41874cfa3;hp=871b81975faedb720ba72f06834f4997b2857232;hpb=527cd00d2fdb184464e7f04ced6d10c59324722e;p=lyx.git diff --git a/src/BufferView.C b/src/BufferView.C index 871b81975f..7e9eec803e 100644 --- a/src/BufferView.C +++ b/src/BufferView.C @@ -15,10 +15,49 @@ #include "BufferView.h" #include "BufferView_pimpl.h" + +#include "BufferView_pimpl.h" +#include "LaTeX.h" +#include "WordLangTuple.h" +#include "buffer.h" +#include "bufferlist.h" +#include "debug.h" +#include "gettext.h" +#include "iterators.h" +#include "language.h" +#include "lyxcursor.h" +#include "lyxlex.h" #include "lyxtext.h" -#include "frontends/screen.h" -#include "frontends/WorkArea.h" +#include "undo_funcs.h" +#include "changes.h" + +#include "frontends/Alert.h" +#include "frontends/Dialogs.h" #include "frontends/LyXView.h" +#include "frontends/WorkArea.h" +#include "frontends/screen.h" + +#include "insets/insetcommand.h" // ChangeRefs +#include "insets/inseterror.h" + +#include "support/FileInfo.h" +#include "support/filetools.h" +#include "support/lyxfunctional.h" // equal_1st_in_pair +#include "support/types.h" +#include "support/lyxalgo.h" // lyx_count + +#include + +extern BufferList bufferlist; + +using lyx::pos_type; + +using std::pair; +using std::endl; +using std::ifstream; +using std::vector; +using std::find; +using std::count_if; BufferView::BufferView(LyXView * owner, int xpos, int ypos, @@ -48,12 +87,6 @@ LyXScreen & BufferView::screen() const } -WorkArea & BufferView::workarea() const -{ - return pimpl_->workarea(); -} - - LyXView * BufferView::owner() const { return pimpl_->owner_; @@ -110,12 +143,6 @@ void BufferView::scrollDocView(int value) } -Inset * BufferView::checkInsetHit(LyXText * text, int & x, int & y) -{ - return pimpl_->checkInsetHit(text, x, y); -} - - void BufferView::redoCurrentBuffer() { pimpl_->redoCurrentBuffer(); @@ -128,6 +155,12 @@ bool BufferView::available() const } +Change const BufferView::getCurrentChange() +{ + return pimpl_->getCurrentChange(); +} + + void BufferView::beforeChange(LyXText * text) { pimpl_->beforeChange(text); @@ -230,3 +263,701 @@ bool BufferView::dispatch(FuncRequest const & ev) { return pimpl_->dispatch(ev); } + + +void BufferView::scroll(int lines) +{ + pimpl_->scroll(lines); +} + + +int BufferView::defaultHeight() const +{ + return text->defaultHeight(); +} + + + +// Inserts a file into current document +bool BufferView::insertLyXFile(string const & filen) + // + // Copyright CHT Software Service GmbH + // Uwe C. Schroeder + // + // Insert a LyXformat - file into current buffer + // + // Moved from lyx_cb.C (Lgb) +{ + if (filen.empty()) + return false; + + string const fname = MakeAbsPath(filen); + + // check if file exist + FileInfo const fi(fname); + + if (!fi.readable()) { + Alert::alert(_("Error!"), + _("Specified file is unreadable: "), + MakeDisplayPath(fname, 50)); + return false; + } + + beforeChange(text); + + ifstream ifs(fname.c_str()); + if (!ifs) { + Alert::err_alert(_("Error! Cannot open specified file:"), + MakeDisplayPath(fname, 50)); + return false; + } + + int const c = ifs.peek(); + + LyXLex lex(0, 0); + lex.setStream(ifs); + + bool res = true; + + if (c == '#') { + lyxerr[Debug::INFO] << "Will insert file with header" << endl; + res = buffer()->readFile(lex, fname, text->cursor.par()); + } else { + lyxerr[Debug::INFO] << "Will insert file without header" + << endl; + res = buffer()->readLyXformat2(lex, text->cursor.par()); + } + + resize(); + return res; +} + + +bool BufferView::removeAutoInsets() +{ + // keep track of which pos and par the cursor was on + Paragraph * cursor_par = text->cursor.par(); + Paragraph * cursor_par_prev = cursor_par ? cursor_par->previous() : 0; + Paragraph * cursor_par_next = cursor_par ? cursor_par->next() : 0; + pos_type cursor_pos = text->cursor.pos(); + + bool found = false; + + // Trap the deletion of the paragraph the cursor is in. + // Iterate until we find a paragraph that won't be immediately deleted. + // In reality this should mean we only execute the body of the while + // loop once at most. However for safety we iterate rather than just + // make this an if () conditional. + while ((cursor_par_prev || cursor_par_next) + && text->setCursor(this, + cursor_par_prev ? cursor_par_prev : cursor_par_next, + 0)) { + // We just removed cursor_par so have to fix the "cursor" + if (cursor_par_prev) { + // '.' = cursor_par + // a -> a. + // . + cursor_par = cursor_par_prev; + cursor_pos = cursor_par->size(); + } else { + // . -> .a + // a + cursor_par = cursor_par_next; + cursor_pos = 0; + } + cursor_par_prev = cursor_par->previous(); + cursor_par_next = cursor_par->next(); + } + + // Iterate through the paragraphs removing autoDelete insets as we go. + // If the paragraph ends up empty after all the autoDelete insets are + // removed that paragraph will be removed by the next setCursor() call. + ParIterator it = buffer()->par_iterator_begin(); + ParIterator end = buffer()->par_iterator_end(); + for (; it != end; ++it) { + Paragraph * par = *it; + Paragraph * par_prev = par ? par->previous() : 0; + bool removed = false; + + if (text->setCursor(this, par, 0) + && cursor_par == par_prev) { + // The previous setCursor line was deleted and that + // was the cursor_par line. This can only happen if an + // error box was the sole item on cursor_par. + // It is possible for cursor_par_prev to be stray if + // the line it pointed to only had a error box on it + // so we have to set it to a known correct value. + // This is often the same value it already had. + cursor_par_prev = par->previous(); + if (cursor_par_prev) { + // '|' = par, '.' = cursor_par, 'E' = error box + // First step below may occur before while{} + // a |a a a a. + // E -> .E -> |.E -> . -> |b + // . b b |b + // b + cursor_par = cursor_par_prev; + cursor_pos = cursor_par_prev->size(); + cursor_par_prev = cursor_par->previous(); + // cursor_par_next remains the same + } else if (cursor_par_next) { + // First step below may occur before while{} + // . + // E -> |.E -> |. -> . -> .|a + // a a a |a + cursor_par = cursor_par_next; + cursor_pos = 0; + // cursor_par_prev remains unset + cursor_par_next = cursor_par->next(); + } else { + // I can't find a way to trigger this + // so it should be unreachable code + // unless the buffer is corrupted. + lyxerr << "BufferView::removeAutoInsets() is bad\n"; + } + } + + InsetList::iterator pit = par->insetlist.begin(); + InsetList::iterator pend = par->insetlist.end(); + + while (pit != pend) { + if (pit.getInset()->autoDelete()) { + removed = true; + pos_type const pos = pit.getPos(); + + par->erase(pos); + // We just invalidated par's inset iterators so + // we get the next valid iterator position + pit = par->insetlist.insetIterator(pos); + // and ensure we have a valid end iterator. + pend = par->insetlist.end(); + + if (cursor_par == par) { + // update the saved cursor position + if (cursor_pos > pos) + --cursor_pos; + } + } else { + ++pit; + } + } + if (removed) { + found = true; + text->redoParagraph(this); + } + } + + // It is possible that the last line is empty if it was cursor_par + // and/or only had an error inset on it. So we set the cursor to the + // start of the doc to force its removal and ensure a valid saved cursor + if (text->setCursor(this, text->ownerParagraph(), 0) + && 0 == cursor_par_next) { + cursor_par = cursor_par_prev; + cursor_pos = cursor_par->size(); + } else if (cursor_pos > cursor_par->size()) { + // Some C-Enter lines were removed by the setCursor call which + // then invalidated cursor_pos. It could still be "wrong" because + // the cursor may appear to have jumped but since we collapsed + // some C-Enter lines this should be a reasonable compromise. + cursor_pos = cursor_par->size(); + } + + // restore the original cursor in its corrected location. + text->setCursorIntern(this, cursor_par, cursor_pos); + + return found; +} + + +void BufferView::insertErrors(TeXErrors & terr) +{ + // Save the cursor position + LyXCursor cursor = text->cursor; + + TeXErrors::Errors::const_iterator cit = terr.begin(); + TeXErrors::Errors::const_iterator end = terr.end(); + for (; cit != end; ++cit) { + string const desctext(cit->error_desc); + string const errortext(cit->error_text); + string const msgtxt = desctext + '\n' + errortext; + int const errorrow = cit->error_in_line; + + // Insert error string for row number + int tmpid = -1; + int tmppos = -1; + + if (buffer()->texrow.getIdFromRow(errorrow, tmpid, tmppos)) { + buffer()->texrow.increasePos(tmpid, tmppos); + } + + Paragraph * texrowpar = 0; + + if (tmpid == -1) { + texrowpar = text->ownerParagraph(); + tmppos = 0; + } else { + texrowpar = buffer()->getParFromID(tmpid); + } + + if (texrowpar == 0) + continue; + + freezeUndo(); + InsetError * new_inset = new InsetError(msgtxt); + text->setCursorIntern(this, texrowpar, tmppos); + text->insertInset(this, new_inset); + text->fullRebreak(this); + unFreezeUndo(); + } + // Restore the cursor position + text->setCursorIntern(this, cursor.par(), cursor.pos()); +} + + +void BufferView::setCursorFromRow(int row) +{ + int tmpid = -1; + int tmppos = -1; + + buffer()->texrow.getIdFromRow(row, tmpid, tmppos); + + Paragraph * texrowpar; + + if (tmpid == -1) { + texrowpar = text->ownerParagraph(); + tmppos = 0; + } else { + texrowpar = buffer()->getParFromID(tmpid); + } + text->setCursor(this, texrowpar, tmppos); +} + + +bool BufferView::insertInset(Inset * inset, string const & lout) +{ + return pimpl_->insertInset(inset, lout); +} + + +// This is also a buffer property (ale) +// Not so sure about that. a goto Label function can not be buffer local, just +// think how this will work in a multiwindow/buffer environment, all the +// cursors in all the views showing this buffer will move. (Lgb) +// OK, then no cursor action should be allowed in buffer. (ale) +bool BufferView::gotoLabel(string const & label) +{ + for (Buffer::inset_iterator it = buffer()->inset_iterator_begin(); + it != buffer()->inset_iterator_end(); ++it) { + vector labels = it->getLabelList(); + if (find(labels.begin(),labels.end(),label) + != labels.end()) { + beforeChange(text); + text->setCursor(this, it.getPar(), it.getPos()); + text->selection.cursor = text->cursor; + update(text, BufferView::SELECT|BufferView::FITCUR); + return true; + } + } + return false; +} + + +void BufferView::undo() +{ + if (!available()) + return; + + owner()->message(_("Undo")); + hideCursor(); + beforeChange(text); + update(text, BufferView::SELECT|BufferView::FITCUR); + if (!textUndo(this)) + owner()->message(_("No further undo information")); + else + update(text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE); + switchKeyMap(); +} + + +void BufferView::redo() +{ + if (!available()) + return; + + owner()->message(_("Redo")); + hideCursor(); + beforeChange(text); + update(text, BufferView::SELECT|BufferView::FITCUR); + if (!textRedo(this)) + owner()->message(_("No further redo information")); + else + update(text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE); + switchKeyMap(); +} + + +void BufferView::copyEnvironment() +{ + if (available()) { + text->copyEnvironmentType(); + owner()->message(_("Paragraph environment type copied")); + } +} + + +void BufferView::pasteEnvironment() +{ + if (available()) { + text->pasteEnvironmentType(this); + owner()->message(_("Paragraph environment type set")); + update(text, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE); + } +} + + +// these functions are for the spellchecker +WordLangTuple const BufferView::nextWord(float & value) +{ + if (!available()) { + value = 1; + return WordLangTuple(); + } + + return text->selectNextWordToSpellcheck(this, value); +} + + +void BufferView::selectLastWord() +{ + if (!available()) + return; + + LyXCursor cur = text->selection.cursor; + hideCursor(); + beforeChange(text); + text->selection.cursor = cur; + text->selectSelectedWord(this); + toggleSelection(false); + update(text, BufferView::SELECT|BufferView::FITCUR); +} + + +void BufferView::endOfSpellCheck() +{ + if (!available()) return; + + hideCursor(); + beforeChange(text); + text->selectSelectedWord(this); + text->clearSelection(); + update(text, BufferView::SELECT|BufferView::FITCUR); +} + + +void BufferView::replaceWord(string const & replacestring) +{ + if (!available()) + return; + + LyXText * tt = getLyXText(); + hideCursor(); + update(tt, BufferView::SELECT|BufferView::FITCUR); + + // clear the selection (if there is any) + toggleSelection(false); + update(tt, BufferView::SELECT|BufferView::FITCUR); + + // clear the selection (if there is any) + toggleSelection(false); + tt->replaceSelectionWithString(this, replacestring); + + tt->setSelectionRange(this, replacestring.length()); + + // Go back so that replacement string is also spellchecked + for (string::size_type i = 0; i < replacestring.length() + 1; ++i) { + tt->cursorLeft(this); + } + update(tt, BufferView::SELECT|BufferView::FITCUR|BufferView::CHANGE); +} +// End of spellchecker stuff + + +bool BufferView::lockInset(UpdatableInset * inset) +{ + if (!inset) + return false; + // don't relock if we're already locked + if (theLockingInset() == inset) + return true; + if (!theLockingInset()) { + // first check if it's the inset under the cursor we want lock + // should be most of the time + char const c = text->cursor.par()->getChar(text->cursor.pos()); + if (c == Paragraph::META_INSET) { + Inset * in = text->cursor.par()->getInset(text->cursor.pos()); + if (inset == in) { + theLockingInset(inset); + return true; + } + } + // Then do a deep look of the inset and lock the right one + int const id = inset->id(); + ParagraphList::iterator pit = buffer()->paragraphs.begin(); + ParagraphList::iterator pend = buffer()->paragraphs.end(); + for (; pit != pend; ++pit) { + InsetList::iterator it = pit->insetlist.begin(); + InsetList::iterator end = pit->insetlist.end(); + for (; it != end; ++it) { + if (it.getInset() == inset) { + text->setCursorIntern(this, &*pit, it.getPos()); + theLockingInset(inset); + return true; + } + if (it.getInset()->getInsetFromID(id)) { + text->setCursorIntern(this, &*pit, it.getPos()); + it.getInset()->edit(this); + return theLockingInset()->lockInsetInInset(this, inset); + } + } + } + return false; + } + return theLockingInset()->lockInsetInInset(this, inset); +} + + +void BufferView::showLockedInsetCursor(int x, int y, int asc, int desc) +{ + if (available() && theLockingInset() && !theLockingInset()->nodraw()) { + LyXCursor cursor = text->cursor; + Inset * locking_inset = theLockingInset()->getLockingInset(); + + if ((cursor.pos() - 1 >= 0) && + cursor.par()->isInset(cursor.pos() - 1) && + (cursor.par()->getInset(cursor.pos() - 1) == + locking_inset)) + text->setCursor(this, cursor, + cursor.par(), cursor.pos() - 1); + LyXScreen::Cursor_Shape shape = LyXScreen::BAR_SHAPE; + LyXText * txt = getLyXText(); + if (locking_inset->isTextInset() && + locking_inset->lyxCode() != Inset::ERT_CODE && + (txt->real_current_font.language() != + buffer()->params.language + || txt->real_current_font.isVisibleRightToLeft() + != buffer()->params.language->RightToLeft())) + shape = (txt->real_current_font.isVisibleRightToLeft()) + ? LyXScreen::REVERSED_L_SHAPE + : LyXScreen::L_SHAPE; + y += cursor.iy() + theLockingInset()->insetInInsetY(); + screen().showManualCursor(text, x, y, asc, desc, + shape); + } +} + + +void BufferView::hideLockedInsetCursor() +{ + if (theLockingInset() && available()) { + screen().hideCursor(); + } +} + + +bool BufferView::fitLockedInsetCursor(int x, int y, int asc, int desc) +{ + if (theLockingInset() && available()) { + y += text->cursor.iy() + theLockingInset()->insetInInsetY(); + if (screen().fitManualCursor(this, text, x, y, asc, desc)) { + updateScrollbar(); + return true; + } + } + return false; +} + + +int BufferView::unlockInset(UpdatableInset * inset) +{ + if (!inset) + return 0; + if (inset && theLockingInset() == inset) { + inset->insetUnlock(this); + theLockingInset(0); + // make sure we update the combo ! + owner()->setLayout(getLyXText()->cursor.par()->layout()->name()); + // Tell the paragraph dialog that we changed paragraph + owner()->getDialogs().updateParagraph(); + finishUndo(); + return 0; + } else if (inset && theLockingInset() && + theLockingInset()->unlockInsetInInset(this, inset)) { + // Tell the paragraph dialog that we changed paragraph + owner()->getDialogs().updateParagraph(); + // owner inset has updated the layout combo + finishUndo(); + return 0; + } + return bufferlist.unlockInset(inset); +} + + +void BufferView::lockedInsetStoreUndo(Undo::undo_kind kind) +{ + if (!theLockingInset()) + return; // shouldn't happen + if (kind == Undo::EDIT) // in this case insets would not be stored! + kind = Undo::FINISH; + setUndo(this, kind, + text->cursor.par(), + text->cursor.par()->next()); +} + + +void BufferView::updateInset(Inset * inset, bool mark_dirty) +{ + pimpl_->updateInset(inset, mark_dirty); +} + + +bool BufferView::ChangeInsets(Inset::Code code, + string const & from, string const & to) +{ + bool need_update = false; + LyXCursor cursor = text->cursor; + LyXCursor tmpcursor = cursor; + cursor.par(tmpcursor.par()); + cursor.pos(tmpcursor.pos()); + + ParIterator end = buffer()->par_iterator_end(); + for (ParIterator it = buffer()->par_iterator_begin(); + it != end; ++it) { + Paragraph * par = *it; + bool changed_inset = false; + for (InsetList::iterator it2 = par->insetlist.begin(); + it2 != par->insetlist.end(); ++it2) { + if (it2.getInset()->lyxCode() == code) { + InsetCommand * inset = static_cast(it2.getInset()); + if (inset->getContents() == from) { + inset->setContents(to); + changed_inset = true; + } + } + } + if (changed_inset) { + need_update = true; + + // FIXME + + // The test it.size()==1 was needed to prevent crashes. + // How to set the cursor corretly when it.size()>1 ?? + if (it.size() == 1) { + text->setCursorIntern(this, par, 0); + text->redoParagraphs(this, text->cursor, + text->cursor.par()->next()); + text->fullRebreak(this); + } + } + } + text->setCursorIntern(this, cursor.par(), cursor.pos()); + return need_update; +} + + +bool BufferView::ChangeRefsIfUnique(string const & from, string const & to) +{ + // Check if the label 'from' appears more than once + vector labels = buffer()->getLabelList(); + + if (lyx::count(labels.begin(), labels.end(), from) > 1) + return false; + + return ChangeInsets(Inset::REF_CODE, from, to); +} + + +bool BufferView::ChangeCitationsIfUnique(string const & from, + string const & to) +{ + typedef pair StringPair; + + vector keys = buffer()->getBibkeyList(); + if (count_if(keys.begin(), keys.end(), + lyx::equal_1st_in_pair(from)) + > 1) + return false; + + return ChangeInsets(Inset::CITE_CODE, from, to); +} + + +UpdatableInset * BufferView::theLockingInset() const +{ + // If NULL is not allowed we should put an Assert here. (Lgb) + if (text) + return text->the_locking_inset; + return 0; +} + + +void BufferView::theLockingInset(UpdatableInset * inset) +{ + text->the_locking_inset = inset; +} + + +LyXText * BufferView::getLyXText() const +{ + if (theLockingInset()) { + LyXText * txt = theLockingInset()->getLyXText(this, true); + if (txt) + return txt; + } + return text; +} + + +LyXText * BufferView::getParentText(Inset * inset) const +{ + if (inset->owner()) { + LyXText * txt = inset->getLyXText(this); + inset = inset->owner(); + while (inset && inset->getLyXText(this) == txt) + inset = inset->owner(); + if (inset) + return inset->getLyXText(this); + } + return text; +} + + +Language const * BufferView::getParentLanguage(Inset * inset) const +{ + LyXText * text = getParentText(inset); + return text->cursor.par()->getFontSettings(buffer()->params, + text->cursor.pos()).language(); +} + + +Encoding const * BufferView::getEncoding() const +{ + LyXText * t = getLyXText(); + if (!t) + return 0; + + LyXCursor const & c= t->cursor; + LyXFont const font = c.par()->getFont(buffer()->params, c.pos()); + return font.language()->encoding(); +} + + +void BufferView::haveSelection(bool sel) +{ + pimpl_->workarea().haveSelection(sel); +} + + +int BufferView::workHeight() const +{ + return pimpl_->workarea().workHeight(); +}