gecko-dev/content/smil/nsSMILTimeValue.cpp

117 lines
3.4 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is the Mozilla SMIL module.
*
* The Initial Developer of the Original Code is Brian Birtles.
* Portions created by the Initial Developer are Copyright (C) 2005
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Brian Birtles <birtles@gmail.com>
*
* Alternatively, the contents of this file may be used under the terms of
* 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"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsSMILTimeValue.h"
#include "nsDebug.h"
nsSMILTime nsSMILTimeValue::kUnresolvedSeconds = LL_MAXINT;
//----------------------------------------------------------------------
// Implementation
// Default constructor creates an unresolved time
nsSMILTimeValue::nsSMILTimeValue()
: mMilliseconds(LL_MAXINT),
mState(STATE_UNRESOLVED)
{
}
//----------------------------------------------------------------------
// nsSMILTimeValue methods:
inline PRInt8
nsSMILTimeValue::Cmp(PRInt64 aA, PRInt64 aB) const
{
return aA == aB ? 0 : (aA > aB ? 1 : -1);
}
void
nsSMILTimeValue::SetIndefinite()
{
mState = STATE_INDEFINITE;
mMilliseconds = LL_MAXINT;
}
void
nsSMILTimeValue::SetUnresolved()
{
mState = STATE_UNRESOLVED;
mMilliseconds = LL_MAXINT;
}
nsSMILTime
nsSMILTimeValue::GetMillis() const
{
NS_ASSERTION(mState == STATE_RESOLVED,
"GetMillis() called for unresolved time.");
if (mState != STATE_RESOLVED)
return kUnresolvedSeconds;
return mMilliseconds;
}
void
nsSMILTimeValue::SetMillis(nsSMILTime aMillis)
{
mState = STATE_RESOLVED;
mMilliseconds = aMillis;
}
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;
}