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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 "SkSVGCircle.h"
#include "SkSVGRenderContext.h"
#include "SkSVGValue.h"
SkSVGCircle::SkSVGCircle() : INHERITED(SkSVGTag::kCircle) {}
void SkSVGCircle::setCx(const SkSVGLength& cx) {
fCx = cx;
}
void SkSVGCircle::setCy(const SkSVGLength& cy) {
fCy = cy;
}
void SkSVGCircle::setR(const SkSVGLength& r) {
fR = r;
}
void SkSVGCircle::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::kR:
if (const auto* r = v.as<SkSVGLengthValue>()) {
this->setR(*r);
}
break;
default:
this->INHERITED::onSetAttribute(attr, v);
}
}
std::tuple<SkPoint, SkScalar> SkSVGCircle::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 r = lctx.resolve(fR , SkSVGLengthContext::LengthType::kOther);
return std::make_tuple(SkPoint::Make(cx, cy), r);
}
void SkSVGCircle::onDraw(SkCanvas* canvas, const SkSVGLengthContext& lctx,
const SkPaint& paint, SkPath::FillType) const {
SkPoint pos;
SkScalar r;
std::tie(pos, r) = this->resolve(lctx);
if (r > 0) {
canvas->drawCircle(pos.x(), pos.y(), r, paint);
}
}
SkPath SkSVGCircle::onAsPath(const SkSVGRenderContext& ctx) const {
SkPoint pos;
SkScalar r;
std::tie(pos, r) = this->resolve(ctx.lengthContext());
SkPath path;
path.addCircle(pos.x(), pos.y(), r);
this->mapToParent(&path);
return path;
}
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