Some improvements for the math context menu:

- hide "Number this line" for single line equations,
- set flag for LFUN_MATH_MUTATE.

see r29762 and r29764.

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/branches/BRANCH_1_6_X@30906 a592a061-630c-0410-9148-cb99ea01b6c8

src/mathed/InsetMathHull.cpp

@@ -1334,12 +1334,18 @@ bool InsetMathHull::getStatus(Cursor & cur, FuncRequest const & cmd,
 	case LFUN_DOWN:
 	case LFUN_NEWLINE_INSERT:
 	case LFUN_MATH_EXTERN:
-	case LFUN_MATH_MUTATE:
 	case LFUN_MATH_DISPLAY:
 		// we handle these
 		status.setEnabled(true);
 		return true;
 
+	case LFUN_MATH_MUTATE: {
+		HullType ht = hullType(cmd.argument());
+		status.setOnOff(type_ == ht);
+		status.setEnabled(true);
+		return true;
+	}
+
 	case LFUN_MATH_NUMBER_TOGGLE:
 		// FIXME: what is the right test, this or the one of
 		// LABEL_INSERT?
@@ -1350,11 +1356,12 @@ bool InsetMathHull::getStatus(Cursor & cur, FuncRequest const & cmd,
 	case LFUN_MATH_NUMBER_LINE_TOGGLE: {
 		// FIXME: what is the right test, this or the one of
 		// LABEL_INSERT?
-		bool const enable = (type_ == hullMultline) ?
-			(nrows() - 1 == cur.row()) : display();
+		bool const enable = (type_ == hullMultline)
+			? (nrows() - 1 == cur.row())
+			: (display() != Inline && nrows() > 1);
 		row_type const r = (type_ == hullMultline) ? nrows() - 1 : cur.row();
 		status.setEnabled(enable);
-		status.setOnOff(numbered(r));
+		status.setOnOff(enable && numbered(r));
 		return true;
 	}
 

src/mathed/InsetMathNest.cpp

@@ -1234,10 +1234,6 @@ bool InsetMathNest::getStatus(Cursor & cur, FuncRequest const & cmd,
 	case LFUN_FONT_DEFAULT:
 		flag.setEnabled(true);
 		break;
-	case LFUN_MATH_MUTATE:
-		//flag.setOnOff(mathcursor::formula()->hullType() == to_utf8(cmd.argument()));
-		flag.setOnOff(false);
-		break;
 
 	// we just need to be in math mode to enable that
 	case LFUN_MATH_SIZE:

status.16x

@@ -66,6 +66,8 @@ What's new
 
 - Math context menu has a new item for numbering a single line in a formula.
 
+- Math context menu has now a status flag indicating the type of equation.
+
 - Some context menu items haven been revised.
 
 - Include inset context menu shows with a checkbox what is the current