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/*
* Copyright (C) 2010 Canonical, Ltd.
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License
* version 3.0 as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3.0 for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*
* Authored by Gordon Allott <gord.allott@canonical.com>
*/
#include "Nux.h"
#include "Timeline.h"
namespace nux
{
Timeline::Timeline (unsigned int msecs, const TCHAR *Caption, NUX_FILE_LINE_DECL)
: Object (true, NUX_FILE_LINE_PARAM)
{
Looping = false;
IsPlaying = false;
Duration = msecs;
Rewind ();
SinkReference (); // get rid of our floating reference
nux::GetWindowThread ()->AddTimeline (this);
}
Timeline::~Timeline ()
{
}
void Timeline::Stop ()
{
Pause ();
Rewind ();
}
void Timeline::Start ()
{
IsPlaying = true;
Started.emit ();
}
void Timeline::Pause ()
{
IsPlaying = false;
Paused.emit ();
}
void Timeline::Rewind ()
{
_ElapsedTime = 0;
}
double Timeline::GetProgress ()
{
return (float)_ElapsedTime / Duration;
}
double Timeline::GetEasing ()
{
// no easing for the base class
return GetProgress ();
}
void Timeline::DoTick (unsigned long msecs)
{
if (msecs < 1)
return;
_ElapsedTime += msecs;
if (Looping)
_ElapsedTime %= Duration;
unsigned long remainder = 0;
if (_ElapsedTime > Duration)
{
remainder = _ElapsedTime - Duration;
_ElapsedTime = Duration;
}
NewFrame.emit (msecs);
if (remainder > 0)
{
nux::GetWindowThread ()->RemoveTimeline (this);
IsPlaying = false;
Completed.emit ();
UnReference ();
}
}
}
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