Andreas' patch to prevent crash on click on previewd inset

[lyx.git] / src / mathed / math_atom.h

diff --git a/src/mathed/math_atom.h b/src/mathed/math_atom.h
index 33b9d61824f932278be9cbfa0150d44422b819cc..e4e2ce99a4811c809f2868286e62c6d15d5449b6 100644 (file)
--- a/src/mathed/math_atom.h
+++ b/src/mathed/math_atom.h
@@ -1,13 +1,23 @@
 // -*- C++ -*-
+/**
+ * \file math_atom.h
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
+ *
+ * \author André Pönitz
+ *
+ * Full author contact details are available in file CREDITS.
+ */
 
 #ifndef MATH_ATOM_H
 #define MATH_ATOM_H
 
-#ifdef __GNUG__
-#pragma interface
-#endif
 
 /**
+Wrapper for MathInset * with copy-semantics
+
+--
+
 The 'atom' is the major blob in math typesetting.  And 'atom' consists
 of a nucleus, an optional superscript, and an optional subscript.
 
@@ -30,6 +40,7 @@ Andre'
 
 */
 
+class InsetBase;
 class MathInset;
 
 class MathAtom {
@@ -38,18 +49,22 @@ public:
        // std::containers
        MathAtom();
        /// the "real constructor"
-       explicit MathAtom(MathInset * p);
+       explicit MathAtom(InsetBase * p);
        /// copy constructor, invokes nucleus_->clone()
        MathAtom(MathAtom const &);
        /// we really need to clean up
        ~MathAtom();
        /// assignment invokes nucleus_->clone()
-       void operator=(MathAtom const &);
+       MathAtom & operator=(MathAtom const &);
        /// access to the inset (checked with gprof)
        MathInset       * nucleus()       { return nucleus_; }
+       MathInset const * nucleus() const { return nucleus_; }
        /// access to the inset
        MathInset const * operator->() const { return nucleus_; }
 
+       /// width cache. Not nice...
+       //mutable int width_;
+
 private:
        ///
        MathInset * nucleus_;