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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 "SkSVGLine.h"
#include "SkSVGRenderContext.h"
#include "SkSVGValue.h"
SkSVGLine::SkSVGLine() : INHERITED(SkSVGTag::kLine) {}
void SkSVGLine::setX1(const SkSVGLength& x1) {
fX1 = x1;
}
void SkSVGLine::setY1(const SkSVGLength& y1) {
fY1 = y1;
}
void SkSVGLine::setX2(const SkSVGLength& x2) {
fX2 = x2;
}
void SkSVGLine::setY2(const SkSVGLength& y2) {
fY2 = y2;
}
void SkSVGLine::onSetAttribute(SkSVGAttribute attr, const SkSVGValue& v) {
switch (attr) {
case SkSVGAttribute::kX1:
if (const auto* x1 = v.as<SkSVGLengthValue>()) {
this->setX1(*x1);
}
break;
case SkSVGAttribute::kY1:
if (const auto* y1 = v.as<SkSVGLengthValue>()) {
this->setY1(*y1);
}
break;
case SkSVGAttribute::kX2:
if (const auto* x2 = v.as<SkSVGLengthValue>()) {
this->setX2(*x2);
}
break;
case SkSVGAttribute::kY2:
if (const auto* y2 = v.as<SkSVGLengthValue>()) {
this->setY2(*y2);
}
break;
default:
this->INHERITED::onSetAttribute(attr, v);
}
}
std::tuple<SkPoint, SkPoint> SkSVGLine::resolve(const SkSVGLengthContext& lctx) const {
return std::make_tuple(
SkPoint::Make(lctx.resolve(fX1, SkSVGLengthContext::LengthType::kHorizontal),
lctx.resolve(fY1, SkSVGLengthContext::LengthType::kVertical)),
SkPoint::Make(lctx.resolve(fX2, SkSVGLengthContext::LengthType::kHorizontal),
lctx.resolve(fY2, SkSVGLengthContext::LengthType::kVertical)));
}
void SkSVGLine::onDraw(SkCanvas* canvas, const SkSVGLengthContext& lctx,
const SkPaint& paint, SkPath::FillType) const {
SkPoint p0, p1;
std::tie(p0, p1) = this->resolve(lctx);
canvas->drawLine(p0.x(), p0.y(), p1.x(), p1.y(), paint);
}
SkPath SkSVGLine::onAsPath(const SkSVGRenderContext& ctx) const {
SkPoint p0, p1;
std::tie(p0, p1) = this->resolve(ctx.lengthContext());
SkPath path;
path.moveTo(p0);
path.lineTo(p1);
this->mapToParent(&path);
return path;
}
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