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