1 /*
2 * Copyright 2016 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8 #include "experimental/svg/model/SkSVGEllipse.h"
9 #include "experimental/svg/model/SkSVGRenderContext.h"
10 #include "experimental/svg/model/SkSVGValue.h"
11 #include "include/core/SkCanvas.h"
12
SkSVGEllipse()13 SkSVGEllipse::SkSVGEllipse() : INHERITED(SkSVGTag::kEllipse) {}
14
setCx(const SkSVGLength & cx)15 void SkSVGEllipse::setCx(const SkSVGLength& cx) {
16 fCx = cx;
17 }
18
setCy(const SkSVGLength & cy)19 void SkSVGEllipse::setCy(const SkSVGLength& cy) {
20 fCy = cy;
21 }
22
setRx(const SkSVGLength & rx)23 void SkSVGEllipse::setRx(const SkSVGLength& rx) {
24 fRx = rx;
25 }
26
setRy(const SkSVGLength & ry)27 void SkSVGEllipse::setRy(const SkSVGLength& ry) {
28 fRy = ry;
29 }
30
onSetAttribute(SkSVGAttribute attr,const SkSVGValue & v)31 void SkSVGEllipse::onSetAttribute(SkSVGAttribute attr, const SkSVGValue& v) {
32 switch (attr) {
33 case SkSVGAttribute::kCx:
34 if (const auto* cx = v.as<SkSVGLengthValue>()) {
35 this->setCx(*cx);
36 }
37 break;
38 case SkSVGAttribute::kCy:
39 if (const auto* cy = v.as<SkSVGLengthValue>()) {
40 this->setCy(*cy);
41 }
42 break;
43 case SkSVGAttribute::kRx:
44 if (const auto* rx = v.as<SkSVGLengthValue>()) {
45 this->setRx(*rx);
46 }
47 break;
48 case SkSVGAttribute::kRy:
49 if (const auto* ry = v.as<SkSVGLengthValue>()) {
50 this->setRy(*ry);
51 }
52 break;
53 default:
54 this->INHERITED::onSetAttribute(attr, v);
55 }
56 }
57
resolve(const SkSVGLengthContext & lctx) const58 SkRect SkSVGEllipse::resolve(const SkSVGLengthContext& lctx) const {
59 const auto cx = lctx.resolve(fCx, SkSVGLengthContext::LengthType::kHorizontal);
60 const auto cy = lctx.resolve(fCy, SkSVGLengthContext::LengthType::kVertical);
61 const auto rx = lctx.resolve(fRx, SkSVGLengthContext::LengthType::kHorizontal);
62 const auto ry = lctx.resolve(fRy, SkSVGLengthContext::LengthType::kVertical);
63
64 return (rx > 0 && ry > 0)
65 ? SkRect::MakeXYWH(cx - rx, cy - ry, rx * 2, ry * 2)
66 : SkRect::MakeEmpty();
67 }
68
onDraw(SkCanvas * canvas,const SkSVGLengthContext & lctx,const SkPaint & paint,SkPathFillType) const69 void SkSVGEllipse::onDraw(SkCanvas* canvas, const SkSVGLengthContext& lctx,
70 const SkPaint& paint, SkPathFillType) const {
71 canvas->drawOval(this->resolve(lctx), paint);
72 }
73
onAsPath(const SkSVGRenderContext & ctx) const74 SkPath SkSVGEllipse::onAsPath(const SkSVGRenderContext& ctx) const {
75 SkPath path;
76 path.addOval(this->resolve(ctx.lengthContext()));
77 this->mapToParent(&path);
78
79 return path;
80 }
81