diff options
Diffstat (limited to 'webapps/qooxdoo-0.6.3-sdk/frontend/framework/source/class/qx/util/format/NumberFormat.js')
-rw-r--r-- | webapps/qooxdoo-0.6.3-sdk/frontend/framework/source/class/qx/util/format/NumberFormat.js | 216 |
1 files changed, 0 insertions, 216 deletions
diff --git a/webapps/qooxdoo-0.6.3-sdk/frontend/framework/source/class/qx/util/format/NumberFormat.js b/webapps/qooxdoo-0.6.3-sdk/frontend/framework/source/class/qx/util/format/NumberFormat.js deleted file mode 100644 index 2b3f2c954a..0000000000 --- a/webapps/qooxdoo-0.6.3-sdk/frontend/framework/source/class/qx/util/format/NumberFormat.js +++ /dev/null @@ -1,216 +0,0 @@ -/* ************************************************************************ - - qooxdoo - the new era of web development - - http://qooxdoo.org - - Copyright: - 2006 by STZ-IDA, Germany, http://www.stz-ida.de - - License: - LGPL 2.1: http://www.gnu.org/licenses/lgpl.html - - Authors: - * Til Schneider (til132) - -************************************************************************ */ - -/* ************************************************************************ - - -************************************************************************ */ - -/** - * A formatter and parser for numbers. - */ -qx.OO.defineClass("qx.util.format.NumberFormat", qx.util.format.Format, -function() { - qx.util.format.Format.call(this); -}); - - -/** - * The minimum number of integer digits (digits before the decimal separator). - * Missing digits will be filled up with 0 ("19" -> "0019"). - */ -qx.OO.addProperty({ name:"minimumIntegerDigits", type:"number", defaultValue:0, allowNull:false }); - -/** - * The maximum number of integer digits (superfluos digits will be cut off - * ("1923" -> "23"). - */ -qx.OO.addProperty({ name:"maximumIntegerDigits", type:"number", defaultValue:null }); - -/** - * The minimum number of fraction digits (digits after the decimal separator). - * Missing digits will be filled up with 0 ("1.5" -> "1.500") - */ -qx.OO.addProperty({ name:"minimumFractionDigits", type:"number", defaultValue:0, allowNull:false }); - -/** - * The maximum number of fraction digits (digits after the decimal separator). - * Superflous digits will cause rounding ("1.8277" -> "1.83") - */ -qx.OO.addProperty({ name:"maximumFractionDigits", type:"number", defaultValue:null }); - -/** Whether thousand groupings should be used {e.g. "1,432,234.65"}. */ -qx.OO.addProperty({ name:"groupingUsed", type:"boolean", defaultValue:true, allowNull:false }); - -/** The prefix to put before the number {"EUR " -> "EUR 12.31"}. */ -qx.OO.addProperty({ name:"prefix", type:"string", defaultValue:"", allowNull:false }); - -/** Sets the postfix to put after the number {" %" -> "56.13 %"}. */ -qx.OO.addProperty({ name:"postfix", type:"string", defaultValue:"", allowNull:false }); - - -/** - * Formats a number. - * - * @param num {number} the number to format. - * @return {string} the formatted number as a string. - */ -qx.Proto.format = function(num) { - var NumberFormat = qx.util.format.NumberFormat; - - var negative = (num < 0); - if (negative) { - num = -num; - } - if (this.getMaximumFractionDigits() != null) { - // Do the rounding - var mover = Math.pow(10, this.getMaximumFractionDigits()); - num = Math.round(num * mover) / mover; - } - - if (num != 0) { // Math.log(0) = -Infinity - var integerDigits = Math.max(parseInt(Math.log(num) / Math.LN10) + 1, 1); - } else { - integerDigits = 1; - } - - var numStr = "" + num; - - // Prepare the integer part - var integerStr = numStr.substring(0, integerDigits); - while (integerStr.length < this.getMinimumIntegerDigits()) { - integerStr = "0" + integerStr; - } - if (this.getMaximumIntegerDigits() != null && integerStr.length > this.getMaximumIntegerDigits()) { - // NOTE: We cut off even though we did rounding before, because there - // may be rounding errors ("12.24000000000001" -> "12.24") - integerStr = integerStr.substring(integerStr.length - this.getMaximumIntegerDigits()); - } - - // Prepare the fraction part - var fractionStr = numStr.substring(integerDigits + 1); - while (fractionStr.length < this.getMinimumFractionDigits()) { - fractionStr += "0"; - } - if (this.getMaximumFractionDigits() != -1 && fractionStr.length > this.getMaximumFractionDigits()) { - // We have already rounded -> Just cut off the rest - fractionStr = fractionStr.substring(0, this.getMaximumFractionDigits()); - } - - // Add the thousand groupings - if (this.getGroupingUsed()) { - var origIntegerStr = integerStr; - integerStr = ""; - var groupPos; - for (groupPos = origIntegerStr.length; groupPos > 3; groupPos -= 3) { - integerStr = NumberFormat.GROUPING_SEPARATOR - + origIntegerStr.substring(groupPos - 3, groupPos) + integerStr; - } - integerStr = origIntegerStr.substring(0, groupPos) + integerStr; - } - - // Workaround: prefix and postfix are null even their defaultValue is "" and - // allowNull is set to false?!? - var prefix = this.getPrefix() ? this.getPrefix() : ""; - var postfix = this.getPostfix() ? this.getPostfix() : ""; - - // Assemble the number - var str = prefix + (negative ? "-" : "") + integerStr; - if (fractionStr.length > 0) { - str += NumberFormat.DECIMAL_SEPARATOR + fractionStr; - } - str += postfix; - - return str; -} - - -/** - * Parses a number. - * - * @param str {string} the string to parse. - * - * @return {double} the number. - */ -qx.Proto.parse = function(str) { - var NumberFormat = qx.util.format.NumberFormat; - - // use the escaped separators for regexp - var groupSepEsc = qx.lang.String.escapeRegexpChars(NumberFormat.GROUPING_SEPARATOR); - var decimalSepEsc = qx.lang.String.escapeRegexpChars(NumberFormat.DECIMAL_SEPARATOR); - - var regex = new RegExp(qx.lang.String.escapeRegexpChars(this.getPrefix()) - + '(-)?([0-9' + groupSepEsc + ']+)' - + '(' + decimalSepEsc + '\\d+)?' - + qx.lang.String.escapeRegexpChars(this.getPostfix())); - - var hit = regex.exec(str); - if (hit == null) { - throw new Error("Number string '" + str + "' does not match the number format"); - } - - var negative = (hit[1] == "-"); - var integerStr = hit[2]; - var fractionStr = hit[3]; - - // Remove the thousand groupings - integerStr = integerStr.replace(new RegExp(groupSepEsc), ""); - - var asStr = (negative ? "-" : "") + integerStr; - if (fractionStr != null && fractionStr.length != 0) { - // Remove the leading decimal separator from the fractions string - fractionStr = fractionStr.replace(new RegExp(decimalSepEsc),""); - asStr += "." + fractionStr; - } - return parseFloat(asStr); -} - - -/** - * Returns the default number format. - * - * @return {NumberFormat} the default number format. - */ -qx.Class.getInstance = function() { - var NumberFormat = qx.util.format.NumberFormat; - if (NumberFormat._instance == null) { - NumberFormat._instance = new NumberFormat(); - } - return NumberFormat._instance; -} - - -/** - * Returns an integer number format. - * - * @return {NumberFormat} an integer number format. - */ -qx.Class.getIntegerInstance = function() { - var NumberFormat = qx.util.format.NumberFormat; - if (NumberFormat._integerInstance == null) { - NumberFormat._integerInstance = new NumberFormat(); - NumberFormat._integerInstance.setMaximumFractionDigits(0); - } - return NumberFormat._integerInstance; -} - - -/** {string} The decimal separator. */ -qx.Class.DECIMAL_SEPARATOR = "."; - -/** {string} The thousand grouping separator. */ -qx.Class.GROUPING_SEPARATOR = ","; |