Mercurial > projects > dwt2
annotate org.eclipse.core.databinding/src/org/eclipse/core/databinding/conversion/NumberToStringConverter.d @ 88:9e0ab372d5d8
Revert from TypeInfo/ClassInfo to java.lang.Class
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Sun, 19 Apr 2009 11:10:09 +0200 |
| parents | 6be48cf9f95c |
| children |
| rev | line source |
|---|---|
| 78 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2007 IBM Corporation and others. | |
| 3 * All rights reserved. This program and the accompanying materials | |
| 4 * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 * which accompanies this distribution, and is available at | |
| 6 * http://www.eclipse.org/legal/epl-v10.html | |
| 7 * | |
| 8 * Contributors: | |
| 9 * IBM Corporation - initial API and implementation | |
| 10 ******************************************************************************/ | |
| 11 | |
| 12 module org.eclipse.core.databinding.conversion.NumberToStringConverter; | |
| 81 | 13 import org.eclipse.core.databinding.conversion.Converter; |
| 78 | 14 |
| 15 import java.lang.all; | |
| 16 | |
| 17 import java.math.BigInteger; | |
| 18 | |
| 19 import com.ibm.icu.text.NumberFormat; | |
| 20 | |
| 21 /** | |
| 22 * Converts a Number to a String using <code>NumberFormat.format(...)</code>. | |
| 23 * This class is thread safe. | |
| 24 * | |
| 25 * @since 1.0 | |
| 26 */ | |
| 27 public class NumberToStringConverter : Converter { | |
| 28 private final NumberFormat numberFormat; | |
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parents:
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changeset
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29 private final Class fromType; |
| 78 | 30 private bool fromTypeIsLong; |
| 31 private bool fromTypeIsDecimalType; | |
| 32 private bool fromTypeIsBigInteger; | |
| 33 | |
| 34 /** | |
| 35 * Constructs a new instance. | |
| 36 * <p> | |
| 37 * Private to restrict public instantiation. | |
| 38 * </p> | |
| 39 * | |
| 40 * @param numberFormat | |
| 41 * @param fromType | |
| 42 */ | |
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Revert from TypeInfo/ClassInfo to java.lang.Class
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parents:
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diff
changeset
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43 private this(NumberFormat numberFormat, Class fromType) { |
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9e0ab372d5d8
Revert from TypeInfo/ClassInfo to java.lang.Class
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parents:
85
diff
changeset
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44 super(fromType, Class.fromType!(StringCls)); |
| 78 | 45 |
| 46 this.numberFormat = numberFormat; | |
| 47 this.fromType = fromType; | |
| 48 | |
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parents:
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changeset
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49 if (Class.fromType!(Integer) is fromType || Integer.TYPE is fromType |
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Revert from TypeInfo/ClassInfo to java.lang.Class
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parents:
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changeset
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50 || Class.fromType!(Long) is (fromType) || Long.TYPE is (fromType)) { |
| 78 | 51 fromTypeIsLong = true; |
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Revert from TypeInfo/ClassInfo to java.lang.Class
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parents:
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diff
changeset
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52 } else if (Class.fromType!(Float) is (fromType) || Float.TYPE is (fromType) |
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9e0ab372d5d8
Revert from TypeInfo/ClassInfo to java.lang.Class
Frank Benoit <benoit@tionex.de>
parents:
85
diff
changeset
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53 || Class.fromType!(Double) is (fromType) |
| 85 | 54 || Double.TYPE is (fromType)) { |
| 78 | 55 fromTypeIsDecimalType = true; |
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Revert from TypeInfo/ClassInfo to java.lang.Class
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parents:
85
diff
changeset
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56 } else if (Class.fromType!(BigInteger) is (fromType)) { |
| 78 | 57 fromTypeIsBigInteger = true; |
| 58 } | |
| 59 } | |
| 60 | |
| 61 /** | |
| 62 * Converts the provided <code>fromObject</code> to a <code>String</code>. | |
| 63 * If the converter was constructed for an object type, non primitive, a | |
| 64 * <code>fromObject</code> of <code>null</code> will be converted to an | |
| 65 * empty string. | |
| 66 * | |
| 67 * @param fromObject | |
| 68 * value to convert. May be <code>null</code> if the converter | |
| 69 * was constructed for a non primitive type. | |
| 70 * @see org.eclipse.core.databinding.conversion.IConverter#convert(java.lang.Object) | |
| 71 */ | |
| 72 public Object convert(Object fromObject) { | |
| 73 // Null is allowed when the type is not primitve. | |
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parents:
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changeset
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74 if (fromObject is null && !fromType.isPrimitive()) { |
| 85 | 75 return stringcast(""); //$NON-NLS-1$ |
| 78 | 76 } |
| 77 | |
| 78 Number number = cast(Number) fromObject; | |
| 79 String result = null; | |
| 80 if (fromTypeIsLong) { | |
| 81 synchronized (numberFormat) { | |
| 82 result = numberFormat.format(number.longValue()); | |
| 83 } | |
| 84 } else if (fromTypeIsDecimalType) { | |
| 85 synchronized (numberFormat) { | |
| 86 result = numberFormat.format(number.doubleValue()); | |
| 87 } | |
| 88 } else if (fromTypeIsBigInteger) { | |
| 89 synchronized (numberFormat) { | |
| 90 result = numberFormat.format(cast(BigInteger) number); | |
| 91 } | |
| 92 } | |
| 93 | |
| 85 | 94 return stringcast(result); |
| 78 | 95 } |
| 96 | |
| 97 /** | |
| 98 * @param primitive | |
| 99 * <code>true</code> if the type is a double | |
| 100 * @return Double converter for the default locale | |
| 101 */ | |
| 102 public static NumberToStringConverter fromDouble(bool primitive) { | |
| 103 return fromDouble(NumberFormat.getNumberInstance(), primitive); | |
| 104 } | |
| 105 | |
| 106 /** | |
| 107 * @param numberFormat | |
| 108 * @param primitive | |
| 109 * @return Double converter with the provided numberFormat | |
| 110 */ | |
| 111 public static NumberToStringConverter fromDouble(NumberFormat numberFormat, | |
| 112 bool primitive) { | |
| 113 return new NumberToStringConverter(numberFormat, | |
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parents:
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diff
changeset
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114 (primitive) ? Double.TYPE : Class.fromType!(Double)); |
| 78 | 115 } |
| 116 | |
| 117 /** | |
| 118 * @param primitive | |
| 119 * <code>true</code> if the type is a long | |
| 120 * @return Long converter for the default locale | |
| 121 */ | |
| 122 public static NumberToStringConverter fromLong(bool primitive) { | |
| 123 return fromLong(NumberFormat.getIntegerInstance(), primitive); | |
| 124 } | |
| 125 | |
| 126 /** | |
| 127 * @param numberFormat | |
| 128 * @param primitive | |
| 129 * @return Long convert with the provided numberFormat | |
| 130 */ | |
| 131 public static NumberToStringConverter fromLong(NumberFormat numberFormat, | |
| 132 bool primitive) { | |
| 133 return new NumberToStringConverter(numberFormat, | |
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parents:
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diff
changeset
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134 (primitive) ? Long.TYPE : Class.fromType!(Long)); |
| 78 | 135 } |
| 136 | |
| 137 /** | |
| 138 * @param primitive | |
| 139 * <code>true</code> if the type is a float | |
| 140 * @return Float converter for the default locale | |
| 141 */ | |
| 142 public static NumberToStringConverter fromFloat(bool primitive) { | |
| 143 return fromFloat(NumberFormat.getNumberInstance(), primitive); | |
| 144 } | |
| 145 | |
| 146 /** | |
| 147 * @param numberFormat | |
| 148 * @param primitive | |
| 149 * @return Float converter with the provided numberFormat | |
| 150 */ | |
| 151 public static NumberToStringConverter fromFloat(NumberFormat numberFormat, | |
| 152 bool primitive) { | |
| 153 return new NumberToStringConverter(numberFormat, | |
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9e0ab372d5d8
Revert from TypeInfo/ClassInfo to java.lang.Class
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parents:
85
diff
changeset
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154 (primitive) ? Float.TYPE : Class.fromType!(Float)); |
| 78 | 155 } |
| 156 | |
| 157 /** | |
| 158 * @param primitive | |
| 159 * <code>true</code> if the type is a int | |
| 160 * @return Integer converter for the default locale | |
| 161 */ | |
| 162 public static NumberToStringConverter fromInteger(bool primitive) { | |
| 163 return fromInteger(NumberFormat.getIntegerInstance(), primitive); | |
| 164 } | |
| 165 | |
| 166 /** | |
| 167 * @param numberFormat | |
| 168 * @param primitive | |
| 169 * @return Integer converter with the provided numberFormat | |
| 170 */ | |
| 171 public static NumberToStringConverter fromInteger( | |
| 172 NumberFormat numberFormat, bool primitive) { | |
| 173 return new NumberToStringConverter(numberFormat, | |
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88
9e0ab372d5d8
Revert from TypeInfo/ClassInfo to java.lang.Class
Frank Benoit <benoit@tionex.de>
parents:
85
diff
changeset
|
174 (primitive) ? Integer.TYPE : Class.fromType!(Integer)); |
| 78 | 175 } |
| 176 | |
| 177 /** | |
| 178 * @return BigInteger convert for the default locale | |
| 179 */ | |
| 180 public static NumberToStringConverter fromBigInteger() { | |
| 181 return fromBigInteger(NumberFormat.getIntegerInstance()); | |
| 182 } | |
| 183 | |
| 184 /** | |
| 185 * @param numberFormat | |
| 186 * @return BigInteger converter with the provided numberFormat | |
| 187 */ | |
| 188 public static NumberToStringConverter fromBigInteger( | |
| 189 NumberFormat numberFormat) { | |
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88
9e0ab372d5d8
Revert from TypeInfo/ClassInfo to java.lang.Class
Frank Benoit <benoit@tionex.de>
parents:
85
diff
changeset
|
190 return new NumberToStringConverter(numberFormat, Class.fromType!(BigInteger)); |
| 78 | 191 } |
| 192 } |