--- /dev/null
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2011 Association for Decentralized Information Management in\r
+ * Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ * VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.utils.format;\r
+\r
+import java.text.DecimalFormat;\r
+import java.text.DecimalFormatSymbols;\r
+import java.text.Format;\r
+import java.text.NumberFormat;\r
+import java.util.Locale;\r
+\r
+\r
+/**\r
+ * \r
+ * @author toni.kalajainen\r
+ */\r
+public enum ValueFormat {\r
+ \r
+ Currency ( new DecimalFormat("#,##0.#######;-#,##0.#####", Impl.SYMBOLS) ),\r
+ Scientific( new DecimalFormat("0.###E0", Impl.SYMBOLS) ),\r
+ Engineering( new DecimalFormat("##0.###E0", Impl.SYMBOLS) ),\r
+ Default ( new SwitchFormat(1e-5, 1e5, Scientific.format, Currency.format, Scientific.format) );\r
+\r
+ public final NumberFormat format;\r
+ ValueFormat(NumberFormat format) { this.format = format; };\r
+ \r
+ public Format toFormat( int noOfDecimals ) \r
+ {\r
+ switch ( this ) {\r
+ case Currency: return noOfDecimals>decimalFormats.length||noOfDecimals<0 ? decimalFormats[decimalFormats.length-1] : decimalFormats[noOfDecimals]; \r
+ case Scientific: return format;\r
+ case Engineering: return format;\r
+ case Default: return noOfDecimals>defaultFormats.length||noOfDecimals<0 ? defaultFormats[defaultFormats.length-1] : defaultFormats[noOfDecimals];\r
+ default: return format;\r
+ }\r
+ }\r
+ \r
+ public static void main(String[] args) {\r
+ double value = 1234567.8901234567890123456;\r
+ for (int i=0; i<10; i++) {\r
+ System.out.println("value="+value+", decimalformat["+i+"]="+decimalFormats[i].format(value));\r
+ }\r
+ value = 567.8901234567890123456;\r
+ for (int i=0; i<10; i++) {\r
+ System.out.println("value="+value+", decimalformat["+i+"]="+decimalFormats[i].format(value));\r
+ }\r
+ }\r
+ \r
+ private static DecimalFormat decimalFormats[] = new DecimalFormat[17];\r
+ private static Format defaultFormats[] = new Format[17];\r
+ \r
+ static {\r
+ String decimals = "";\r
+ for ( int i=0; i<decimalFormats.length; i++ ) {\r
+ decimalFormats[i] = new DecimalFormat("#,###"+decimals+";-#,###"+decimals, Impl.SYMBOLS);\r
+ defaultFormats[i] = new SwitchFormat(1e-5, 1e5, Scientific.format, decimalFormats[i], Scientific.format);\r
+ if ( i==0 ) decimals += ".";\r
+ decimals += "#";\r
+ }\r
+ }\r
+\r
+ private static class Impl {\r
+ private static final DecimalFormatSymbols SYMBOLS;\r
+ static {\r
+ SYMBOLS = DecimalFormatSymbols.getInstance(Locale.US);\r
+ SYMBOLS.setGroupingSeparator(' ');\r
+ }\r
+ }\r
+\r
+}\r