/* ************************************************************************

   qooxdoo - the new era of web development

   http://qooxdoo.org

   Copyright:
     2004-2006 by 1&1 Internet AG, Germany, http://www.1and1.org

   License:
     LGPL 2.1: http://www.gnu.org/licenses/lgpl.html

   Authors:
     * Sebastian Werner (wpbasti)
     * Andreas Ecker (ecker)

************************************************************************ */

/* ************************************************************************


************************************************************************ */

qx.OO.defineClass("qx.util.Compare");

qx.util.Compare.byString = function(a, b) {
  return a==b ? 0 : a > b ? 1 : -1;
}

qx.util.Compare.byStringCaseInsensitive = function(a, b) {
  return qx.util.Compare.byString(a.toLowerCase(), b.toLowerCase());
}

qx.util.Compare.byStringUmlautsShort = function(a, b) {
  return qx.util.Compare.byString(qx.util.Normalization.umlautsShort(a), qx.util.Normalization.umlautsShort(b));
}

qx.util.Compare.byStringUmlautsShortCaseInsensitive = function(a, b) {
  return qx.util.Compare.byString(qx.util.Normalization.umlautsShort(a).toLowerCase(), qx.util.Normalization.umlautsShort(b).toLowerCase());
}

qx.util.Compare.byStringUmlautsLong = function(a, b) {
  return qx.util.Compare.byString(qx.util.Normalization.umlautsLong(a), qx.util.Normalization.umlautsLong(b));
}

qx.util.Compare.byStringUmlautsLongCaseInsensitive = function(a, b) {
  return qx.util.Compare.byString(qx.util.Normalization.umlautsLong(a).toLowerCase(), qx.util.Normalization.umlautsLong(b).toLowerCase());
}

qx.util.Compare.byFloat = function(a, b) {
  return a - b;
}

qx.util.Compare.byInteger = qx.util.Compare.byNumber = qx.util.Compare.byFloat;

qx.util.Compare.byIntegerString = function(a, b) {
  return parseInt(a) - parseInt(b);
}

qx.util.Compare.byFloatString = function(a, b) {
  return parseFloat(a) - parseFloat(b);
}

qx.util.Compare.byNumberString = qx.util.Compare.byFloatString;

qx.util.Compare.byIPv4 = function(a, b)
{
  var ipa = a.split(".", 4);
  var ipb = b.split(".", 4);

  for (var i=0; i<3; i++)
  {
    a = parseInt(ipa[i]);
    b = parseInt(ipb[i]);

    if (a != b) {
      return a - b;
    }
  }

  return parseInt(ipa[3]) - parseInt(ipb[3]);
}

qx.util.Compare.byZIndex = function(a, b) {
  return a.getZIndex() - b.getZIndex();
}