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/*
* Copyright (C) 2006 Nikolas Zimmermann <zimmermann@kde.org>
* Copyright (C) Research In Motion Limited 2010. All rights reserved.
*
* 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 "third_party/blink/renderer/core/layout/svg/layout_svg_resource_linear_gradient.h"
#include "third_party/blink/renderer/core/svg/svg_linear_gradient_element.h"
#include "third_party/blink/renderer/platform/heap/heap.h"
namespace blink {
LayoutSVGResourceLinearGradient::LayoutSVGResourceLinearGradient(
SVGLinearGradientElement* node)
: LayoutSVGResourceGradient(node),
attributes_wrapper_(
MakeGarbageCollected<LinearGradientAttributesWrapper>()) {}
LayoutSVGResourceLinearGradient::~LayoutSVGResourceLinearGradient() = default;
void LayoutSVGResourceLinearGradient::CollectGradientAttributes() {
DCHECK(GetElement());
attributes_wrapper_->Set(LinearGradientAttributes());
To<SVGLinearGradientElement>(GetElement())
->CollectGradientAttributes(MutableAttributes());
}
FloatPoint LayoutSVGResourceLinearGradient::StartPoint(
const LinearGradientAttributes& attributes) const {
return SVGLengthContext::ResolvePoint(GetElement(),
attributes.GradientUnits(),
*attributes.X1(), *attributes.Y1());
}
FloatPoint LayoutSVGResourceLinearGradient::EndPoint(
const LinearGradientAttributes& attributes) const {
return SVGLengthContext::ResolvePoint(GetElement(),
attributes.GradientUnits(),
*attributes.X2(), *attributes.Y2());
}
scoped_refptr<Gradient> LayoutSVGResourceLinearGradient::BuildGradient() const {
const LinearGradientAttributes& attributes = Attributes();
scoped_refptr<Gradient> gradient = Gradient::CreateLinear(
StartPoint(attributes), EndPoint(attributes),
PlatformSpreadMethodFromSVGType(attributes.SpreadMethod()),
Gradient::ColorInterpolation::kUnpremultiplied,
Gradient::DegenerateHandling::kAllow);
gradient->AddColorStops(attributes.Stops());
return gradient;
}
} // namespace blink
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