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/* ************************************************************************
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;
}
};
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