restore the correct behavior of suppression of misspelled marker for word at cursor position - the change r37340 broke it

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@37363 a592a061-630c-0410-9148-cb99ea01b6c8

src/Paragraph.cpp

@@ -3763,9 +3763,12 @@ void Paragraph::spellCheck() const
 }
 
 
-bool Paragraph::isMisspelled(pos_type pos) const
+bool Paragraph::isMisspelled(pos_type pos, bool check_boundary) const
 {
-	return SpellChecker::misspelled(d->speller_state_.getState(pos));
+	bool result = SpellChecker::misspelled(d->speller_state_.getState(pos));
+	if (!result && check_boundary && pos > 0 && isWordSeparator(pos))
+		result = SpellChecker::misspelled(d->speller_state_.getState(pos - 1));
+	return result;
 }
 
 

src/Paragraph.h

@@ -456,8 +456,10 @@ public:
 		bool check_learned = false) const;
 
 	/// Spell checker status at position \p pos.
-	/// \return true if pointed position is misspelled.
-	bool isMisspelled(pos_type pos) const;
+	/// If \p check_boundary is true the status of position immediately
+	/// before \p pos is tested too if it is at word boundary.
+	/// \return true if one of the tested positions is misspelled.
+	bool isMisspelled(pos_type pos, bool check_boundary = false) const;
 
 	/// \return true if both positions are inside the same
 	/// spell range - i.e. the same word.

src/Text3.cpp

@@ -467,9 +467,9 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 	cur.noScreenUpdate();
 
 	LASSERT(cur.text() == this, /**/);
-	CursorSlice oldTopSlice = cur.top();
-	bool oldBoundary = cur.boundary();
-	bool sel = cur.selection();
+	CursorSlice const oldTopSlice = cur.top();
+	bool const oldBoundary = cur.boundary();
+	bool const oldSelection = cur.selection();
 	// Signals that, even if needsUpdate == false, an update of the
 	// cursor paragraph is required
 	bool singleParUpdate = lyxaction.funcHasFlag(cmd.action(),
@@ -477,9 +477,8 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 	// Signals that a full-screen update is required
 	bool needsUpdate = !(lyxaction.funcHasFlag(cmd.action(),
 		LyXAction::NoUpdate) || singleParUpdate);
-	int const last_pid = cur.paragraph().id();
-	pos_type const last_pos = cur.pos();
-	bool const last_misspelled = lyxrc.spellcheck_continuously && cur.paragraph().isMisspelled(cur.pos());
+	bool const last_misspelled = lyxrc.spellcheck_continuously
+		&& cur.paragraph().isMisspelled(cur.pos(), true);
 	
 	FuncCode const act = cmd.action();
 	switch (act) {
@@ -2184,9 +2183,10 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 		if (!cur.inTexted()) {
 			// move from regular text to math
 			needsUpdate = last_misspelled;
-		} else if (cur.paragraph().id() != last_pid || cur.pos() != last_pos) {
+		} else if (oldTopSlice != cur.top() || oldBoundary != cur.boundary()) {
 			// move inside regular text
-			needsUpdate = last_misspelled || cur.paragraph().isMisspelled(cur.pos());
+			needsUpdate = last_misspelled
+				|| cur.paragraph().isMisspelled(cur.pos(), true);
 		}
 	}
 
@@ -2212,7 +2212,7 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 	if (!needsUpdate
 	    && &oldTopSlice.inset() == &cur.inset()
 	    && oldTopSlice.idx() == cur.idx()
-	    && !sel // sel is a backup of cur.selection() at the beginning of the function.
+	    && !oldSelection // oldSelection is a backup of cur.selection() at the beginning of the function.
 	    && !cur.selection())
 		// FIXME: it would be better if we could just do this
 		//

src/rowpainter.cpp

@@ -421,6 +421,8 @@ void RowPainter::paintFromPos(pos_type & vpos, bool changed)
 			pos_type cpos = cur.pos();
 			if (cpos > 0 && cpos == par_.size() && !par_.isWordSeparator(cpos-1))
 				--cpos;
+			else if (cpos > 0 && par_.isWordSeparator(cpos))
+				--cpos;
 			current_word = par_.isSameSpellRange(pos, cpos) ;
 		}
 		if (!current_word)