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c4658f046f
See https://marc.info/?l=lyx-devel&m=155879185229073&w=2. The problem is that, after saving the document and reloading, the TOC is corrupted, more or less, when we run through updateBuffer. So we reset it first.
332 lines
8.4 KiB
C++
332 lines
8.4 KiB
C++
/**
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* \file TocBackend.cpp
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author Jean-Marc Lasgouttes
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* \author Angus Leeming
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* \author Abdelrazak Younes
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* \author Guillaume Munch
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*
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* Full author contact details are available in file CREDITS.
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*/
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#include <config.h>
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#include "TocBackend.h"
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#include "Buffer.h"
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#include "BufferParams.h"
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#include "IndicesList.h"
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#include "InsetList.h"
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#include "Paragraph.h"
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#include "TextClass.h"
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#include "insets/InsetArgument.h"
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#include "support/debug.h"
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#include "support/docstream.h"
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#include "support/gettext.h"
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#include "support/lassert.h"
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#include "support/lstrings.h"
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using namespace std;
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namespace lyx {
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///////////////////////////////////////////////////////////////////////////
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//
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// TocItem implementation
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//
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///////////////////////////////////////////////////////////////////////////
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TocItem::TocItem(DocIterator const & dit, int d, docstring const & s,
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bool output_active, FuncRequest action)
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: dit_(dit), depth_(d), str_(s), output_(output_active),
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action_(action)
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{
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}
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int TocItem::id() const
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{
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return dit_.paragraph().id();
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}
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docstring const TocItem::asString() const
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{
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static char_type const cross = 0x2716; // ✖ U+2716 HEAVY MULTIPLICATION X
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static char_type const thin = 0x2009; // U+2009 THIN SPACE
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docstring prefix;
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if (!output_) {
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prefix += cross;
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prefix += thin;
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}
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return prefix + str_;
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}
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FuncRequest TocItem::action() const
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{
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if (action_.action() == LFUN_UNKNOWN_ACTION) {
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return FuncRequest(LFUN_PARAGRAPH_GOTO, dit_.paragraphGotoArgument());
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} else
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return action_;
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}
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///////////////////////////////////////////////////////////////////////////
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//
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// TocBackend implementation
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//
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///////////////////////////////////////////////////////////////////////////
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Toc::const_iterator TocBackend::findItem(Toc const & toc,
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DocIterator const & dit)
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{
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Toc::const_iterator last = toc.begin();
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Toc::const_iterator it = toc.end();
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if (it == last)
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return it;
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--it;
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DocIterator dit_text = dit.getInnerText();
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for (; it != last; --it) {
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// We verify that we don't compare contents of two
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// different document. This happens when you
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// have parent and child documents.
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if (&it->dit()[0].inset() != &dit_text[0].inset())
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continue;
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if (it->dit() <= dit_text)
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return it;
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}
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// We are before the first Toc Item:
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return last;
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}
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Toc::iterator TocBackend::findItem(Toc & toc, int depth, docstring const & str)
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{
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if (toc.empty())
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return toc.end();
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Toc::iterator it = toc.begin();
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Toc::iterator itend = toc.end();
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for (; it != itend; ++it) {
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if (it->depth() == depth && it->str() == str)
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break;
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}
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return it;
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}
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shared_ptr<Toc const> TocBackend::toc(string const & type) const
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{
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// Is the type already supported?
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TocList::const_iterator it = tocs_.find(type);
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LASSERT(it != tocs_.end(), { return make_shared<Toc>(); });
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return it->second;
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}
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shared_ptr<Toc> TocBackend::toc(string const & type)
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{
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// std::map::insert only really performs the insertion if the key is not
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// already bound, and otherwise returns an iterator to the element already
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// there, see manual.
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return tocs_.insert({type, make_shared<Toc>()}).first->second;
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}
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TocBuilder & TocBackend::builder(string const & type)
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{
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auto p = make_unique<TocBuilder>(toc(type));
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return * builders_.insert(make_pair(type, move(p))).first->second;
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}
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// FIXME: This function duplicates functionality from InsetText::iterateForToc.
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// Both have their own way of computing the TocItem for "tableofcontents". The
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// TocItem creation and update should be made in a dedicated function and
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// updateItem should be rewritten to uniformly update the matching items from
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// all TOCs.
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bool TocBackend::updateItem(DocIterator const & dit_in)
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{
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// we need a text
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DocIterator dit = dit_in.getInnerText();
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if (dit.text()->getTocLevel(dit.pit()) == Layout::NOT_IN_TOC)
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return false;
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if (toc("tableofcontents")->empty()) {
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// FIXME: should not happen,
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// a call to TocBackend::update() is missing somewhere
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LYXERR0("TocBackend::updateItem called but the TOC is empty!");
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return false;
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}
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BufferParams const & bufparams = buffer_->params();
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const int min_toclevel = bufparams.documentClass().min_toclevel();
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Toc::const_iterator toc_item = item("tableofcontents", dit);
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docstring tocstring;
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// For each paragraph, traverse its insets and let them add
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// their toc items
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//
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// FIXME: This is supposed to accomplish the same as the body of
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// InsetText::iterateForToc(), probably
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Paragraph & par = toc_item->dit().paragraph();
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for (auto const & table : par.insetList())
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if (InsetArgument const * arg = table.inset->asInsetArgument()) {
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tocstring = par.labelString();
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if (!tocstring.empty())
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tocstring += ' ';
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arg->text().forOutliner(tocstring,TOC_ENTRY_LENGTH);
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break;
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}
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int const toclevel = toc_item->dit().text()->
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getTocLevel(toc_item->dit().pit());
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if (toclevel != Layout::NOT_IN_TOC && toclevel >= min_toclevel
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&& tocstring.empty())
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par.forOutliner(tocstring, TOC_ENTRY_LENGTH);
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support::truncateWithEllipsis(tocstring, TOC_ENTRY_LENGTH);
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const_cast<TocItem &>(*toc_item).str(tocstring);
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buffer_->updateTocItem("tableofcontents", dit);
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return true;
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}
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void TocBackend::reset()
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{
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for (auto const & t: tocs_)
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t.second->clear();
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tocs_.clear();
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builders_.clear();
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resetOutlinerNames();
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}
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void TocBackend::update(bool output_active, UpdateType utype)
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{
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reset();
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if (buffer_->isInternal())
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return;
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DocIterator dit;
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buffer_->inset().addToToc(dit, output_active, utype, *this);
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}
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Toc::const_iterator TocBackend::item(string const & type,
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DocIterator const & dit) const
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{
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TocList::const_iterator toclist_it = tocs_.find(type);
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// Is the type supported?
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// We will try to make the best of it in release mode
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LASSERT(toclist_it != tocs_.end(), toclist_it = tocs_.begin());
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return findItem(*toclist_it->second, dit);
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}
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void TocBackend::writePlaintextTocList(string const & type,
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odocstringstream & os, size_t max_length) const
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{
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TocList::const_iterator cit = tocs_.find(type);
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if (cit != tocs_.end()) {
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Toc::const_iterator ccit = cit->second->begin();
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Toc::const_iterator end = cit->second->end();
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for (; ccit != end; ++ccit) {
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os << ccit->asString() << from_utf8("\n");
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if (os.str().size() > max_length)
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break;
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}
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}
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}
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docstring TocBackend::outlinerName(string const & type) const
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{
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map<string, docstring>::const_iterator const it
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= outliner_names_.find(type);
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if (it != outliner_names_.end())
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return it->second;
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// Legacy treatment of index:... type
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if (support::prefixIs(type, "index:")) {
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string const itype = support::split(type, ':');
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IndicesList const & indiceslist = buffer_->params().indiceslist();
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Index const * index = indiceslist.findShortcut(from_utf8(itype));
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docstring indextype = _("unknown type!");
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if (index)
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indextype = index->index();
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return support::bformat(_("Index Entries (%1$s)"), indextype);
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}
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LYXERR0("Missing OutlinerName for " << type << "!");
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return from_utf8(type);
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}
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void TocBackend::resetOutlinerNames()
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{
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outliner_names_.clear();
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// names from this document class
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for (pair<string, docstring> const & name
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: buffer_->params().documentClass().outlinerNames())
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addName(name.first, translateIfPossible(name.second));
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// Hardcoded types
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addName("tableofcontents", _("Table of Contents"));
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addName("change", _("Changes"));
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addName("senseless", _("Senseless"));
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addName("citation", _("Citations"));
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addName("label", _("Labels and References"));
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// Customizable, but the corresponding insets have no layout definition
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addName("child", _("Child Documents"));
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addName("graphics", _("Graphics"));
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addName("equation", _("Equations"));
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addName("external", _("External Material"));
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addName("math-macro", _("Math Macros"));
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addName("nomencl", _("Nomenclature Entries"));
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}
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void TocBackend::addName(string const & type, docstring const & name)
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{
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if (name.empty())
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return;
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// only inserts if the key does not exist
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outliner_names_.insert({type, name});
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}
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bool TocBackend::isOther(std::string const & type)
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{
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return type == "graphics"
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|| type == "note"
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|| type == "branch"
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|| type == "change"
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|| type == "label"
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|| type == "citation"
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|| type == "equation"
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|| type == "footnote"
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|| type == "marginalnote"
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|| type == "nomencl"
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|| type == "listings"
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|| type == "math-macro"
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|| type == "external"
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|| type == "senseless"
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|| type == "index"
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|| type.substr(0,6) == "index:";
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}
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} // namespace lyx
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