diff options
Diffstat (limited to 'webapps/qooxdoo-0.6.5-sdk/frontend/framework/source/class/qx/lang/Number.js')
-rw-r--r-- | webapps/qooxdoo-0.6.5-sdk/frontend/framework/source/class/qx/lang/Number.js | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/webapps/qooxdoo-0.6.5-sdk/frontend/framework/source/class/qx/lang/Number.js b/webapps/qooxdoo-0.6.5-sdk/frontend/framework/source/class/qx/lang/Number.js new file mode 100644 index 0000000000..b90fce337f --- /dev/null +++ b/webapps/qooxdoo-0.6.5-sdk/frontend/framework/source/class/qx/lang/Number.js @@ -0,0 +1,89 @@ +/* ************************************************************************ + + qooxdoo - the new era of web development + + http://qooxdoo.org + + Copyright: + 2004-2007 1&1 Internet AG, Germany, http://www.1and1.org + + License: + LGPL: http://www.gnu.org/licenses/lgpl.html + EPL: http://www.eclipse.org/org/documents/epl-v10.php + See the LICENSE file in the project's top-level directory for details. + + Authors: + * Sebastian Werner (wpbasti) + * Andreas Ecker (ecker) + +************************************************************************ */ + +/* ************************************************************************ + + +************************************************************************ */ + +/** + * Helper functions for numbers. + * + * The native JavaScript Number is not modified by this class. + * + * The additions implemented here may be added directly to the native Number + * by a setting in {@link qx.lang.Prototypes}. This feature is not enabled by + * default. + */ +qx.OO.defineClass("qx.lang.Number"); + +/** + * Check whether the number is in a given range + * + * @param nr {Number} the number to check + * @param vmin {Integer} lower bound of the range + * @param vmax {Integer} upper bound of the range + * @return {Boolean} whether the number is >= vmin and <= vmax + */ +qx.lang.Number.isInRange = function(nr, vmin, vmax) { + return nr >= vmin && nr <= vmax; +}; + + +/** + * Check whether the number is between a given range + * + * @param nr {Number} the number to check + * @param vmin {Integer} lower bound of the range + * @param vmax {Integer} upper bound of the range + * @return {Boolean} whether the number is > vmin and < vmax + */ +qx.lang.Number.isBetweenRange = function(nr, vmin, vmax) { + return nr > vmin && nr < vmax; +}; + + +/** + * Limit the nuber to a given range + * + * * If the number is greater than the upper bound, the upper bound is returned + * * If the number is smaller than the lower bound, the lower bound is returned + * * If the number is in the range, the number is retuned + * + * @param nr {Number} the number to limit + * @param vmin {Integer} lower bound of the range + * @param vmax {Integer} upper bound of the range + * @return {Integer} the limited number + */ +qx.lang.Number.limit = function(nr, vmin, vmax) +{ + if (typeof vmax === "number" && nr > vmax) + { + return vmax; + } + else if (typeof vmin === "number" && nr < vmin) + { + return vmin; + } + else + { + return nr; + } +}; |