gecko-dev/content/smil/nsSMILTimeValue.cpp

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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 * The contents of this file are subject to the Mozilla Public License Version
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 * The Original Code is the Mozilla SMIL module.
 *
 * The Initial Developer of the Original Code is Brian Birtles.
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 * the Initial Developer. All Rights Reserved.
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 * Contributor(s):
 *   Brian Birtles <birtles@gmail.com>
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 * either of the GNU General Public License Version 2 or later (the "GPL"),
 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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#include "nsSMILTimeValue.h"

nsSMILTime nsSMILTimeValue::kUnresolvedMillis = LL_MAXINT;

//----------------------------------------------------------------------
// nsSMILTimeValue methods:

static inline PRInt8
Cmp(PRInt64 aA, PRInt64 aB)
{
  return aA == aB ? 0 : (aA > aB ? 1 : -1);
}

PRInt8
nsSMILTimeValue::CompareTo(const nsSMILTimeValue& aOther) const
{
  PRInt8 result;

  if (mState == STATE_RESOLVED) {
    result = (aOther.mState == STATE_RESOLVED)
           ? Cmp(mMilliseconds, aOther.mMilliseconds)
           : -1;
  } else if (mState == STATE_INDEFINITE) {
    if (aOther.mState == STATE_RESOLVED)
      result = 1;
    else if (aOther.mState == STATE_INDEFINITE)
      result = 0;
    else
      result = -1;
  } else {
    result = (aOther.mState != STATE_UNRESOLVED) ? 1 : 0;
  }

  return result;
}