blob: 0131e1e4f9eeddc26115b71b11a8df33ca1f6773 [file] [log] [blame]
* 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 <tuple>
#include "include/core/SkCanvas.h"
#include "include/core/SkRect.h"
#include "modules/svg/include/SkSVGRect.h"
#include "modules/svg/include/SkSVGRenderContext.h"
#include "modules/svg/include/SkSVGValue.h"
SkSVGRect::SkSVGRect() : INHERITED(SkSVGTag::kRect) {}
bool SkSVGRect::parseAndSetAttribute(const char* n, const char* v) {
return INHERITED::parseAndSetAttribute(n, v) ||
this->setX(SkSVGAttributeParser::parse<SkSVGLength>("x", n, v)) ||
this->setY(SkSVGAttributeParser::parse<SkSVGLength>("y", n, v)) ||
this->setWidth(SkSVGAttributeParser::parse<SkSVGLength>("width", n, v)) ||
this->setHeight(SkSVGAttributeParser::parse<SkSVGLength>("height", n, v)) ||
this->setRx(SkSVGAttributeParser::parse<SkSVGLength>("rx", n, v)) ||
this->setRy(SkSVGAttributeParser::parse<SkSVGLength>("ry", n, v));
SkRRect SkSVGRect::resolve(const SkSVGLengthContext& lctx) const {
const auto rect = lctx.resolveRect(fX, fY, fWidth, fHeight);
// - Let rx and ry be length values.
// - If neither ‘rx’ nor ‘ry’ are properly specified, then set both rx and ry to 0.
// - Otherwise, if a properly specified value is provided for ‘rx’, but not for ‘ry’,
// then set both rx and ry to the value of ‘rx’.
// - Otherwise, if a properly specified value is provided for ‘ry’, but not for ‘rx’,
// then set both rx and ry to the value of ‘ry’.
// - Otherwise, both ‘rx’ and ‘ry’ were specified properly. Set rx to the value of ‘rx’
// and ry to the value of ‘ry’.
// - If rx is greater than half of ‘width’, then set rx to half of ‘width’.
// - If ry is greater than half of ‘height’, then set ry to half of ‘height’.
// - The effective values of ‘rx’ and ‘ry’ are rx and ry, respectively.
auto radii = [this]() {
return fRx.isValid()
? fRy.isValid()
? std::make_tuple(*fRx, *fRy)
: std::make_tuple(*fRx, *fRx)
: fRy.isValid()
? std::make_tuple(*fRy, *fRy)
: std::make_tuple(SkSVGLength(0), SkSVGLength(0));
const auto [ rxlen, rylen ] = radii();
const auto rx = std::min(lctx.resolve(rxlen, SkSVGLengthContext::LengthType::kHorizontal),
rect.width() / 2),
ry = std::min(lctx.resolve(rylen, SkSVGLengthContext::LengthType::kVertical),
rect.height() / 2);
return SkRRect::MakeRectXY(rect, rx, ry);
void SkSVGRect::onDraw(SkCanvas* canvas, const SkSVGLengthContext& lctx,
const SkPaint& paint, SkPathFillType) const {
canvas->drawRRect(this->resolve(lctx), paint);
SkPath SkSVGRect::onAsPath(const SkSVGRenderContext& ctx) const {
SkPath path = SkPath::RRect(this->resolve(ctx.lengthContext()));
return path;
SkRect SkSVGRect::onObjectBoundingBox(const SkSVGRenderContext& ctx) const {
return ctx.lengthContext().resolveRect(fX, fY, fWidth, fHeight);