Fix bug #5540: Crash in MathAtom on Undo.

[lyx.git] / src / Paragraph.cpp

diff --git a/src/Paragraph.cpp b/src/Paragraph.cpp
index 2bd646e0833c874f39ce88b6173da932a3320ae0..9345e90a3f21401512efd09d46d765645f4cb09f 100644 (file)
--- a/src/Paragraph.cpp
+++ b/src/Paragraph.cpp
@@ -288,6 +288,15 @@ void Paragraph::addChangesToToc(DocIterator const & cdit,
 }
 
 
+bool Paragraph::isFullyDeleted(pos_type start, pos_type end) const
+{
+       LASSERT(start >= 0 && start <= size(), /**/);
+       LASSERT(end > start && end <= size() + 1, /**/);
+
+       return d->changes_.isFullyDeleted(start, end);
+}
+
+
 bool Paragraph::isChanged(pos_type start, pos_type end) const
 {
        LASSERT(start >= 0 && start <= size(), /**/);
@@ -2965,4 +2974,32 @@ void Paragraph::updateWords()
        registerWords();
 }
 
+
+bool Paragraph::isMisspelled(pos_type pos) const
+{
+       SpellChecker * speller = theSpellChecker();
+       pos_type from = pos;
+       pos_type to = pos;
+       locateWord(from, to, WHOLE_WORD);
+       docstring word = asString(from, to, false);
+       if (!speller)
+               return false;
+               
+       string lang_code = lyxrc.spellchecker_use_alt_lang
+             ? lyxrc.spellchecker_alt_lang
+             : getFontSettings(d->inset_owner_->buffer().params(), from).language()->code();
+       WordLangTuple wl(word, lang_code);
+       SpellChecker::Result res = speller->check(wl);
+       // ... just ignore any error that the spellchecker reports.
+       if (!speller->error().empty())
+               return false;
+
+       bool const misspelled = res != SpellChecker::OK
+               && res != SpellChecker::IGNORED_WORD;
+       if (lyxrc.spellcheck_continuously)
+               d->fontlist_.setMisspelled(from, pos, misspelled);
+       return misspelled;
+}
+
+
 } // namespace lyx