/*
- * Jalview - A Sequence Alignment Editor and Viewer (Version 2.5)
- * 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 <http://www.gnu.org/licenses/>.
+ * You should have received a copy of the GNU General Public License
+ * along with Jalview. If not, see <http://www.gnu.org/licenses/>.
+ * The Jalview Authors are detailed in the 'AUTHORS' file.
*/
/**
* A class for formatting numbers that follows printf conventions.
private char fmt; // one of cdeEfgGiosxXos
+ private final String formatString;
+
/**
* Creates a new Format object.
*
*/
public Format(String s)
{
+ formatString = s;
width = 0;
precision = -1;
pre = "";
}
}
-/**
+ /**
* Formats the number following printf conventions. Main limitation: Can only
* handle one format parameter at a time Use multiple Format objects to format
* more than one number
*
* @param s
- * the format string following printf conventions The string
- * has a prefix, a format code and a suffix. The prefix and
- * suffix become part of the formatted output. The format code
- * directs the formatting of the (single) parameter to be
- * formatted. The code has the following structure
- * <ul>
- * <li> a % (required)
- * <li> a modifier (optional)
- * <dl>
- * <dt> +
- * <dd> forces display of + for positive numbers
- * <dt> 0
- * <dd> show leading zeroes
- * <dt> -
- * <dd> align left in the field
- * <dt> space
- * <dd> prepend a space in front of positive numbers
- * <dt> #
- * <dd> use "alternate" format. Add 0 or 0x for octal or
- * hexadecimal numbers. Don't suppress trailing zeroes in
- * general floating point format.
- * </dl>
- * <li> an integer denoting field width (optional)
- * <li> a period followed by an integer denoting precision
- * (optional)
- * <li> a format descriptor (required)
- * <dl>
- * <dt>f
- * <dd> floating point number in fixed format
- * <dt>e, E
- * <dd> floating point number in exponential notation
- * (scientific format). The E format results in an uppercase E
- * for the exponent (1.14130E+003), the e format in a lowercase
- * e.
- * <dt>g, G
- * <dd> floating point number in general format (fixed format
- * for small numbers, exponential format for large numbers).
- * Trailing zeroes are suppressed. The G format results in an
- * uppercase E for the exponent (if any), the g format in a
- * lowercase e.
- * <dt>d, i
- * <dd> integer in decimal
- * <dt>x
- * <dd> integer in hexadecimal
- * <dt>o
- * <dd> integer in octal
- * <dt>s
- * <dd> string
- * <dt>c
- * <dd> character
- * </dl>
- * </ul>
+ * the format string following printf conventions The string has a
+ * prefix, a format code and a suffix. The prefix and suffix become
+ * part of the formatted output. The format code directs the
+ * formatting of the (single) parameter to be formatted. The code has
+ * the following structure
+ * <ul>
+ * <li>a % (required)
+ * <li>a modifier (optional)
+ * <dl>
+ * <dt>+
+ * <dd>forces display of + for positive numbers
+ * <dt>0
+ * <dd>show leading zeroes
+ * <dt>-
+ * <dd>align left in the field
+ * <dt>space
+ * <dd>prepend a space in front of positive numbers
+ * <dt>#
+ * <dd>use "alternate" format. Add 0 or 0x for octal or hexadecimal
+ * numbers. Don't suppress trailing zeroes in general floating point
+ * format.
+ * </dl>
+ * <li>an integer denoting field width (optional)
+ * <li>a period followed by an integer denoting precision (optional)
+ * <li>a format descriptor (required)
+ * <dl>
+ * <dt>f
+ * <dd>floating point number in fixed format
+ * <dt>e, E
+ * <dd>floating point number in exponential notation (scientific
+ * format). The E format results in an uppercase E for the exponent
+ * (1.14130E+003), the e format in a lowercase e.
+ * <dt>g, G
+ * <dd>floating point number in general format (fixed format for
+ * small numbers, exponential format for large numbers). Trailing
+ * zeroes are suppressed. The G format results in an uppercase E for
+ * the exponent (if any), the g format in a lowercase e.
+ * <dt>d, i
+ * <dd>integer in decimal
+ * <dt>x
+ * <dd>integer in hexadecimal
+ * <dt>o
+ * <dd>integer in octal
+ * <dt>s
+ * <dd>string
+ * <dt>c
+ * <dd>character
+ * </dl>
+ * </ul>
* @exception IllegalArgumentException
- * if bad format
+ * if bad format
*
*/
public static String getHexString(java.awt.Color color)
/**
* Formats a character into a string (like sprintf in C)
*
- * @param x
+ * @param debounceTrap
* the value to format
* @return the formatted string
*/
/**
* Formats a string into a larger string (like sprintf in C)
*
- * @param x
+ * @param debounceTrap
* the value to format
* @return the formatted string
*/
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--;
+ }
+ }
+ }
}
git://source.jalview.org / jalview.git / blobdiff