| /* |
| * 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 "experimental/svg/model/SkSVGCircle.h" |
| #include "experimental/svg/model/SkSVGRenderContext.h" |
| #include "experimental/svg/model/SkSVGValue.h" |
| #include "include/core/SkCanvas.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, SkPathFillType) 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; |
| } |