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/*
Copyright (C) 2001-2003 KSVG Team
This file is part of the KDE project
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <math.h>
#include <kdebug.h>
#include "SVGColorImpl.h"
#include "SVGDocumentImpl.h"
#include "SVGStylableImpl.h"
#include "SVGAnimateColorElementImpl.h"
using namespace KSVG;
SVGAnimateColorElementImpl::SVGAnimateColorElementImpl(DOM::ElementImpl *impl) : SVGAnimationElementImpl(impl)
{
m_fromColor = new SVGColorImpl(this);
m_fromColor->ref();
m_toColor = new SVGColorImpl(this);
m_toColor->ref();
}
SVGAnimateColorElementImpl::~SVGAnimateColorElementImpl()
{
m_fromColor->deref();
m_toColor->deref();
}
/*
* Outstanding issues
* - 'values' support
* - 'by' support
*/
void SVGAnimateColorElementImpl::setAttributes()
{
SVGAnimationElementImpl::setAttributes();
SVGStylableImpl::setColor(getFrom(), m_fromColor);
SVGStylableImpl::setColor(getTo(), m_toColor);
ownerDoc()->timeScheduler()->addTimer(this, int(getStartTime() * 1000.0));
}
void SVGAnimateColorElementImpl::handleTimerEvent()
{
if(!m_connected)
{
double duration = getSimpleDuration() * 1000.0;
double dinterval = SVGTimeScheduler::staticTimerInterval;
m_step = 0;
m_steps = (int) rint(duration / dinterval);
m_connected = true;
ownerDoc()->timeScheduler()->connectIntervalTimer(this);
}
else
{
TQColor fromColor(m_fromColor->rgbColor().color());
TQColor toColor(m_toColor->rgbColor().color());
int red = (int) rint(((toColor.red() - fromColor.red()) / static_cast<double>(m_steps)) * m_step + fromColor.red());
int green = (int) rint(((toColor.green() - fromColor.green()) / static_cast<double>(m_steps)) * m_step + fromColor.green());
int blue = (int) rint(((toColor.blue() - fromColor.blue()) / static_cast<double>(m_steps)) * m_step + fromColor.blue());
TQString color = "rgb(" + TQString::number(red) + "," + TQString::number(green) + "," + TQString::number(blue) + ")";
applyAttribute(getAttributeName(), color);
}
if(m_step < m_steps)
m_step++;
else
{
ownerDoc()->timeScheduler()->disconnectIntervalTimer(this);
m_connected = false;
}
}
// vim:ts=4:noet
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