Code cleanup

src/common/str2int.cpp

@@ -1,16 +0,0 @@
-#include <cctype>
-#include "str2int.h"
-
-int str2int(const char *str, int len)
-{
-	int res = 0;
-
-	for (const char *sp = str; sp < str + len; sp++) {
-		if (::isdigit(*sp))
-			res = res * 10 + *sp - '0';
-		else
-			return -1;
-	}
-
-	return res;
-}

src/common/str2int.h

@@ -1,6 +0,0 @@
-#ifndef MISC_H
-#define MISC_H
-
-int str2int(const char *str, int len);
-
-#endif // MISC_H

src/common/util.cpp

@@ -0,0 +1,50 @@
+#include <cctype>
+#include <cmath>
+#include "util.h"
+
+
+int str2int(const char *str, int len)
+{
+	int res = 0;
+
+	for (const char *sp = str; sp < str + len; sp++) {
+		if (::isdigit(*sp))
+			res = res * 10 + *sp - '0';
+		else
+			return -1;
+	}
+
+	return res;
+}
+
+double niceNum(double x, int round)
+{
+	int expv;
+	double f;
+	double nf;
+
+	expv = (int)floor(log10(x));
+	f = x / pow(10.0, expv);
+
+	if (round) {
+		if (f < 1.5)
+			nf = 1.0;
+		else if (f < 3.0)
+			nf = 2.0;
+		else if (f < 7.0)
+			nf = 5.0;
+		else
+			nf = 10.0;
+	} else {
+		if (f <= 1.0)
+			nf = 1.0;
+		else if (f <= 2.0)
+			nf = 2.0;
+		else if (f <= 5.0)
+			nf = 5.0;
+		else
+			nf = 10.0;
+	}
+
+	return nf * pow(10.0, expv);
+}

src/common/util.h

@@ -0,0 +1,7 @@
+#ifndef UTIL_H
+#define UTIL_H
+
+int str2int(const char *str, int len);
+double niceNum(double x, int round);
+
+#endif // UTIL_H