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/*
* Copyright (C) 2004, 2005 Nikolas Zimmermann <zimmermann@kde.org>
* Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org>
* Copyright (C) 2009 Google, Inc.
*
* 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 "config.h"
#if ENABLE(SVG)
#include "RenderSVGTransformableContainer.h"
#include "SVGNames.h"
#include "SVGShadowTreeElements.h"
#include "SVGStyledTransformableElement.h"
namespace WebCore {
RenderSVGTransformableContainer::RenderSVGTransformableContainer(SVGStyledTransformableElement* node)
: RenderSVGContainer(node)
, m_needsTransformUpdate(true)
{
}
bool RenderSVGTransformableContainer::calculateLocalTransform()
{
SVGStyledTransformableElement* element = static_cast<SVGStyledTransformableElement*>(node());
bool needsUpdate = m_needsTransformUpdate;
if (needsUpdate) {
m_localTransform = element->animatedLocalTransform();
m_needsTransformUpdate = false;
}
if (!element->hasTagName(SVGNames::gTag) || !static_cast<SVGGElement*>(element)->isShadowTreeContainerElement())
return needsUpdate;
FloatSize translation = static_cast<SVGShadowTreeContainerElement*>(element)->containerTranslation();
if (!translation.width() && !translation.height())
return needsUpdate;
// FIXME: Could optimize this case for use to avoid refetching the animatedLocalTransform() here, if only the containerTranslation() changed.
if (!needsUpdate)
m_localTransform = element->animatedLocalTransform();
m_localTransform.translate(translation.width(), translation.height());
return true;
}
}
#endif // ENABLE(SVG)
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