new branch muse2, first checkin

1 files changed, 77 insertions, 0 deletions

diff --git a/muse2/muse/widgets/mmath.h b/muse2/muse/widgets/mmath.h
new file mode 100644
index 00000000..51381047
--- /dev/null
+++ b/muse2/muse/widgets/mmath.h
@@ -0,0 +1,77 @@
+//=========================================================
+//  MusE
+//  Linux Music Editor
+//    $Id: mmath.h,v 1.1.1.1 2003/10/27 18:54:47 wschweer Exp $
+//
+//  (C) Copyright 2000 Werner Schweer (ws@seh.de)
+//=========================================================
+
+#ifndef __MATH_H__
+#define __MATH_H__
+
+#define LOG_MIN 1.0e-100
+#define LOG_MAX 1.0e100
+
+double qwtCeil125(double x);
+double qwtFloor125(double x);
+void qwtTwistArray(double *array, int size);
+int qwtChkMono(double *array, int size);
+void qwtLinSpace(double *array, int size, double xmin, double xmax);
+void qwtLogSpace(double *array, int size, double xmin, double xmax);
+
+template <class T>
+inline int qwtSign(const T& x)
+{
+    if (x > T(0))
+       return 1;
+    else if (x < T(0))
+       return (-1);
+    else
+       return 0;
+}			
+
+inline int qwtInt(double x)
+{
+    return int(rint(x));
+}
+
+template <class T>
+inline T qwtAbs (const T& x)
+{
+    return( x > T(0) ? x : -x );
+}
+
+template <class T>
+inline const T& qwtMax (const T& x, const T& y)
+{
+    return ( x > y ? x : y );
+}
+
+template <class T>
+inline const T& qwtMin ( const T& x, const T& y)
+{
+    return ( x < y ? x : y );
+}
+
+
+template <class T>
+T qwtLim(const T& x, const T& x1, const T& x2)
+{
+    T rv;
+    T xmin, xmax;
+
+    xmin = qwtMin(x1, x2);
+    xmax = qwtMax(x1, x2);
+
+    if ( x < xmin )
+       rv = xmin;
+    else if ( x > xmax )
+       rv = xmax;
+    else
+       rv = x;
+
+    return rv;
+}
+
+#endif
+