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1
4 package gnu.kawa.functions;
5 import gnu.text.EnglishIntegerFormat;
6 import gnu.text.RomanIntegerFormat;
7 import gnu.math.*;
8
9 public class IntegerFormat extends gnu.text.IntegerFormat
10 {
11
12 public IntegerFormat ()
13 {
14 }
15
16 private static IntegerFormat plainDecimalFormat;
17
18 public static IntegerFormat getInstance()
19 {
20 if (plainDecimalFormat == null)
21 plainDecimalFormat = new IntegerFormat();
22 return plainDecimalFormat;
23 }
24
25 public static java.text.Format 
26 getInstance (int base, int minWidth, int padChar,
27 int commaChar, int commaInterval, int flags)
28 {
29 if (base == PARAM_UNSPECIFIED)
30 {
31 if (padChar == PARAM_UNSPECIFIED
32 && padChar == PARAM_UNSPECIFIED
33 && commaChar == PARAM_UNSPECIFIED
34 && commaInterval == PARAM_UNSPECIFIED)
35 {
36 boolean seenColon = (flags&SHOW_GROUPS) != 0;
38 if ((flags & SHOW_PLUS) != 0)
39 return RomanIntegerFormat.getInstance(seenColon);
40 else
41 return EnglishIntegerFormat.getInstance(seenColon);
42 }
43 base = 10;
44 }
45 if (minWidth == PARAM_UNSPECIFIED) minWidth = 1;
46 if (padChar == PARAM_UNSPECIFIED) padChar = ' ';
47 if (commaChar == PARAM_UNSPECIFIED) commaChar = ',';
48 if (commaInterval == PARAM_UNSPECIFIED) commaInterval = 3;
49 if (base == 10 && minWidth == 1 && padChar == ' '
50 && commaChar == ',' && commaInterval == 3
51 && flags == 0)
52 return getInstance();
53 IntegerFormat fmt = new IntegerFormat();
54 fmt.base = base;
55 fmt.minWidth = minWidth;
56 fmt.padChar = padChar;
57 fmt.commaChar = commaChar;
58 fmt.commaInterval = commaInterval;
59 fmt.flags = flags;
60 return fmt;
61 }
62
63 public String convertToIntegerString(Object arg, int radix)
64 {
65 if (arg instanceof RealNum)
66 return ((RealNum) arg).toExactInt(Numeric.ROUND).toString(radix);
67 else
68 return super.convertToIntegerString(arg, radix);
69 }
70 }
71 |
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