* InsetMathMBox.h:

- encapsulate within MATH_MBOX macro.
  - implement default constructor.


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@17309 a592a061-630c-0410-9148-cb99ea01b6c8

src/mathed/InsetMathMBox.C

@@ -34,6 +34,13 @@ using std::auto_ptr;
 using std::endl;
 
 
+InsetMathMBox::InsetMathMBox()
+{
+	text_.paragraphs().clear();
+	text_.paragraphs().push_back(Paragraph());
+}
+
+
 InsetMathMBox::InsetMathMBox(LyXLayout_ptr const & layout)
 {
 	text_.paragraphs().clear();

src/mathed/InsetMathMBox.h

@@ -9,6 +9,10 @@
  * Full author contact details are available in file CREDITS.
  */
 
+#define MATH_MBOX
+
+#ifdef MATH_MBOX
+
 #ifndef MATH_MBOXINSET_H
 #define MATH_MBOXINSET_H
 
@@ -26,7 +30,9 @@ class BufferView;
 class InsetMathMBox : public InsetMathDim {
 public:
 	///
+	explicit InsetMathMBox();
 	explicit InsetMathMBox(LyXLayout_ptr const & layout);
+
 	/// this stores metrics information in cache_
 	bool metrics(MetricsInfo & mi, Dimension & dim) const;
 	/// draw according to cached metrics
@@ -61,4 +67,7 @@ private:
 
 
 } // namespace lyx
-#endif
+
+#endif //MATH_MBOXINSET_H
+
+#endif //MATH_MBOX