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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "core/style/StylePath.h"
#include "core/css/CSSPathValue.h"
#include "core/svg/SVGPathByteStream.h"
#include "core/svg/SVGPathUtilities.h"
#include "platform/graphics/Path.h"
#include "wtf/PtrUtil.h"
#include <memory>
namespace blink {
StylePath::StylePath(std::unique_ptr<SVGPathByteStream> pathByteStream)
: m_byteStream(std::move(pathByteStream)),
m_pathLength(std::numeric_limits<float>::quiet_NaN()) {
ASSERT(m_byteStream);
}
StylePath::~StylePath() {}
PassRefPtr<StylePath> StylePath::create(
std::unique_ptr<SVGPathByteStream> pathByteStream) {
return adoptRef(new StylePath(std::move(pathByteStream)));
}
StylePath* StylePath::emptyPath() {
DEFINE_STATIC_REF(StylePath, emptyPath,
StylePath::create(SVGPathByteStream::create()));
return emptyPath;
}
const Path& StylePath::path() const {
if (!m_path) {
m_path = WTF::wrapUnique(new Path);
buildPathFromByteStream(*m_byteStream, *m_path);
}
return *m_path;
}
float StylePath::length() const {
if (std::isnan(m_pathLength))
m_pathLength = path().length();
return m_pathLength;
}
bool StylePath::isClosed() const {
return path().isClosed();
}
CSSValue* StylePath::computedCSSValue() const {
return CSSPathValue::create(const_cast<StylePath*>(this));
}
bool StylePath::operator==(const StylePath& other) const {
return *m_byteStream == *other.m_byteStream;
}
} // namespace blink
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