forgotten files

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@4560 a592a061-630c-0410-9148-cb99ea01b6c8

src/mathed/dimension.C

@@ -0,0 +1,11 @@
+
+#include "dimension.h"
+
+void Dimension::operator+=(Dimension const & dim)
+{
+	if (a < dim.a)
+		a = dim.a;
+	if (d < dim.d)
+		d = dim.d;
+	w += dim.w;
+}

src/mathed/dimension.h

@@ -0,0 +1,31 @@
+#ifndef DIMENSION_H
+#define DIMENSION_H
+
+class Dimension {
+public:
+	/// constructor
+	Dimension() : w(0), a(0), d(0) {}
+	/// initialize data
+	Dimension(int ww, int aa, int dd) : w(ww), a(aa), d(dd) {}
+
+	/// glue horizontally
+	void operator+=(Dimension const & dim);
+	/// set to empty box
+	void clear() { w = a = d = 0; }
+	/// get height
+	int height() const { return a + d; }
+	/// get ascent
+	int ascent() const { return a; }
+	/// get width
+	int width() const { return w; }
+
+public:	
+	/// width
+	int w;
+	/// ascent
+	int a;
+	/// descent
+	int d;
+};
+
+#endif