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/*
* Copyright 2010 Inalogic® Inc.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License, as
* published by the Free Software Foundation; either version 2.1 or 3.0
* of the License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranties of
* MERCHANTABILITY, SATISFACTORY QUALITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the applicable version of the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of both the GNU Lesser General Public
* License along with this program. 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 char *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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