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/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkCanvas.h"
#include "SkSVGEllipse.h"
#include "SkSVGRenderContext.h"
#include "SkSVGValue.h"
SkSVGEllipse::SkSVGEllipse() : INHERITED(SkSVGTag::kEllipse) {}
void SkSVGEllipse::setCx(const SkSVGLength& cx) {
fCx = cx;
}
void SkSVGEllipse::setCy(const SkSVGLength& cy) {
fCy = cy;
}
void SkSVGEllipse::setRx(const SkSVGLength& rx) {
fRx = rx;
}
void SkSVGEllipse::setRy(const SkSVGLength& ry) {
fRy = ry;
}
void SkSVGEllipse::onSetAttribute(SkSVGAttribute attr, const SkSVGValue& v) {
switch (attr) {
case SkSVGAttribute::kCx:
if (const auto* cx = v.as<SkSVGLengthValue>()) {
this->setCx(*cx);
}
break;
case SkSVGAttribute::kCy:
if (const auto* cy = v.as<SkSVGLengthValue>()) {
this->setCy(*cy);
}
break;
case SkSVGAttribute::kRx:
if (const auto* rx = v.as<SkSVGLengthValue>()) {
this->setRx(*rx);
}
break;
case SkSVGAttribute::kRy:
if (const auto* ry = v.as<SkSVGLengthValue>()) {
this->setRy(*ry);
}
break;
default:
this->INHERITED::onSetAttribute(attr, v);
}
}
SkRect SkSVGEllipse::resolve(const SkSVGLengthContext& lctx) const {
const auto cx = lctx.resolve(fCx, SkSVGLengthContext::LengthType::kHorizontal);
const auto cy = lctx.resolve(fCy, SkSVGLengthContext::LengthType::kVertical);
const auto rx = lctx.resolve(fRx, SkSVGLengthContext::LengthType::kHorizontal);
const auto ry = lctx.resolve(fRy, SkSVGLengthContext::LengthType::kVertical);
return (rx > 0 && ry > 0)
? SkRect::MakeXYWH(cx - rx, cy - ry, rx * 2, ry * 2)
: SkRect::MakeEmpty();
}
void SkSVGEllipse::onDraw(SkCanvas* canvas, const SkSVGLengthContext& lctx,
const SkPaint& paint, SkPath::FillType) const {
canvas->drawOval(this->resolve(lctx), paint);
}
SkPath SkSVGEllipse::onAsPath(const SkSVGRenderContext& ctx) const {
SkPath path;
path.addOval(this->resolve(ctx.lengthContext()));
this->mapToParent(&path);
return path;
}
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