+ LASSERT(singleton_, /**/);
+ return singleton_->pimpl_->messages_["GUI"];
+}
+
+
+Session & theSession()
+{
+ LASSERT(singleton_, /**/);
+ return *singleton_->pimpl_->session_.get();
+}
+
+
+CmdDef & theTopLevelCmdDef()
+{
+ LASSERT(singleton_, /**/);
+ return singleton_->pimpl_->toplevel_cmddef_;
+}
+
+
+SpellChecker * theSpellChecker()
+{
+ if (!singleton_->pimpl_->spell_checker_)
+ setSpellChecker();
+ return singleton_->pimpl_->spell_checker_;
+}
+
+
+void setSpellChecker()
+{
+ SpellChecker::ChangeNumber speller_change_number =singleton_->pimpl_->spell_checker_ ?
+ singleton_->pimpl_->spell_checker_->changeNumber() : 0;
+
+ if (lyxrc.spellchecker == "native") {
+#if defined(USE_MACOSX_PACKAGING)
+ if (!singleton_->pimpl_->apple_spell_checker_)
+ singleton_->pimpl_->apple_spell_checker_ = new AppleSpellChecker();
+ singleton_->pimpl_->spell_checker_ = singleton_->pimpl_->apple_spell_checker_;
+#else
+ singleton_->pimpl_->spell_checker_ = 0;
+#endif
+ } else if (lyxrc.spellchecker == "aspell") {
+#if defined(USE_ASPELL)
+ if (!singleton_->pimpl_->aspell_checker_)
+ singleton_->pimpl_->aspell_checker_ = new AspellChecker();
+ singleton_->pimpl_->spell_checker_ = singleton_->pimpl_->aspell_checker_;
+#else
+ singleton_->pimpl_->spell_checker_ = 0;
+#endif
+ } else if (lyxrc.spellchecker == "enchant") {
+#if defined(USE_ENCHANT)
+ if (!singleton_->pimpl_->enchant_checker_)
+ singleton_->pimpl_->enchant_checker_ = new EnchantChecker();
+ singleton_->pimpl_->spell_checker_ = singleton_->pimpl_->enchant_checker_;
+#else
+ singleton_->pimpl_->spell_checker_ = 0;
+#endif
+ } else if (lyxrc.spellchecker == "hunspell") {
+#if defined(USE_HUNSPELL)
+ if (!singleton_->pimpl_->hunspell_checker_)
+ singleton_->pimpl_->hunspell_checker_ = new HunspellChecker();
+ singleton_->pimpl_->spell_checker_ = singleton_->pimpl_->hunspell_checker_;
+#else
+ singleton_->pimpl_->spell_checker_ = 0;
+#endif
+ } else {
+ singleton_->pimpl_->spell_checker_ = 0;
+ }
+ if (singleton_->pimpl_->spell_checker_) {
+ singleton_->pimpl_->spell_checker_->changeNumber(speller_change_number);
+ singleton_->pimpl_->spell_checker_->advanceChangeNumber();
+ }