X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;ds=sidebyside;f=src%2Fjalview%2Futil%2FFormat.java;h=ce7ab6df184a5984bd2262536dc43799e9bf4ce9;hb=77aeee47a94b906c0cd6a27e4317bba202e731f2;hp=97a97ac603dba72f3515054b1746e88d64a38a09;hpb=8a6fa9ea9900d0f106529c3f6283e7f9d76dd2cb;p=jalview.git
diff --git a/src/jalview/util/Format.java b/src/jalview/util/Format.java
index 97a97ac..ce7ab6d 100755
--- a/src/jalview/util/Format.java
+++ b/src/jalview/util/Format.java
@@ -1,19 +1,22 @@
/*
- * Jalview - A Sequence Alignment Editor and Viewer (Version 2.6)
- * Copyright (C) 2010 J Procter, AM Waterhouse, G Barton, M Clamp, S Searle
+ * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
+ * Copyright (C) $$Year-Rel$$ The Jalview Authors
*
* This file is part of Jalview.
*
* Jalview is free software: you can redistribute it and/or
* modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
- *
+ * as published by the Free Software Foundation, either version 3
+ * of the License, or (at your option) any later version.
+ *
* Jalview is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
- * You should have received a copy of the GNU General Public License along with Jalview. If not, see .
+ * You should have received a copy of the GNU General Public License
+ * along with Jalview. If not, see .
+ * The Jalview Authors are detailed in the 'AUTHORS' file.
*/
/**
* A class for formatting numbers that follows printf conventions.
@@ -23,6 +26,8 @@
*/
package jalview.util;
+import java.util.Arrays;
+
/**
* DOCUMENT ME!
*
@@ -51,6 +56,8 @@ public class Format
private char fmt; // one of cdeEfgGiosxXos
+ private final String formatString;
+
/**
* Creates a new Format object.
*
@@ -59,6 +66,7 @@ public class Format
*/
public Format(String s)
{
+ formatString = s;
width = 0;
precision = -1;
pre = "";
@@ -619,7 +627,7 @@ public class Format
/**
* Formats a character into a string (like sprintf in C)
*
- * @param x
+ * @param debounceTrap
* the value to format
* @return the formatted string
*/
@@ -638,7 +646,7 @@ public class Format
/**
* Formats a string into a larger string (like sprintf in C)
*
- * @param x
+ * @param debounceTrap
* the value to format
* @return the formatted string
*/
@@ -658,30 +666,22 @@ public class Format
}
/**
- * DOCUMENT ME!
+ * Returns a string consisting of n repeats of character c
*
* @param c
- * DOCUMENT ME!
* @param n
- * DOCUMENT ME!
*
- * @return DOCUMENT ME!
+ * @return
*/
- private static String repeat(char c, int n)
+ static String repeat(char c, int n)
{
if (n <= 0)
{
return "";
}
-
- StringBuffer s = new StringBuffer(n);
-
- for (int i = 0; i < n; i++)
- {
- s.append(c);
- }
-
- return s.toString();
+ char[] chars = new char[n];
+ Arrays.fill(chars, c);
+ return new String(chars);
}
/**
@@ -790,8 +790,8 @@ public class Format
{
w = width;
}
- else if (((fmt == 'd') || (fmt == 'i') || (fmt == 'x') || (fmt == 'X') || (fmt == 'o'))
- && (precision > 0))
+ else if (((fmt == 'd') || (fmt == 'i') || (fmt == 'x') || (fmt == 'X')
+ || (fmt == 'o')) && (precision > 0))
{
w = precision;
}
@@ -833,7 +833,8 @@ public class Format
double factor = 1;
String leading_zeroes = "";
- for (int i = 1; (i <= precision) && (factor <= 0x7FFFFFFFFFFFFFFFL); i++)
+ for (int i = 1; (i <= precision)
+ && (factor <= 0x7FFFFFFFFFFFFFFFL); i++)
{
factor *= 10;
leading_zeroes = leading_zeroes + "0";
@@ -884,21 +885,18 @@ public class Format
String f = "";
int e = 0;
double dd = d;
- double factor = 1;
if (d != 0)
{
while (dd > 10)
{
e++;
- factor /= 10;
dd = dd / 10;
}
while (dd < 1)
{
e--;
- factor *= 10;
dd = dd * 10;
}
}
@@ -908,8 +906,7 @@ public class Format
return fixed_format(d);
}
- d = d * factor;
- f = f + fixed_format(d);
+ f = f + fixed_format(dd);
if ((fmt == 'e') || (fmt == 'g'))
{
@@ -935,4 +932,55 @@ public class Format
return f + p.substring(p.length() - 3, p.length());
}
+
+ @Override
+ public String toString()
+ {
+ return formatString;
+ }
+
+ /**
+ * Bespoke method to format percentage float value to the specified number of
+ * decimal places. Avoids use of general-purpose format parsers as a
+ * processing hotspot.
+ *
+ * @param sb
+ * @param value
+ * @param dp
+ */
+ public static void appendPercentage(StringBuilder sb, float value, int dp)
+ {
+ /*
+ * rounding first
+ */
+ double d = value;
+ long factor = 1L;
+ for (int i = 0; i < dp; i++)
+ {
+ factor *= 10;
+ }
+ d *= factor;
+ d += 0.5;
+
+ /*
+ * integer part
+ */
+ value = (float) (d / factor);
+ sb.append((long) value);
+
+ /*
+ * decimal places
+ */
+ if (dp > 0)
+ {
+ sb.append(".");
+ while (dp > 0)
+ {
+ value = value - (int) value;
+ value *= 10;
+ sb.append((int) value);
+ dp--;
+ }
+ }
+ }
}