skia2/experimental/svg/model/SkSVGPoly.cpp
Florin Malita 57a0edf7ba [SVGDom] Add clip-rule support
Currently we use 'fill-rule' when emitting clip paths.  This is wrong:
per spec [1], clip paths observe 'clip-rule', not 'fill-rule'.

[1] https://www.w3.org/TR/SVG/masking.html#ClipRuleProperty

Change-Id: Idf81de05e9601663c8dbc9856900ffa679daf4a5
Reviewed-on: https://skia-review.googlesource.com/57661
Reviewed-by: Robert Phillips <robertphillips@google.com>
Reviewed-by: Stephan Altmueller <stephana@google.com>
Commit-Queue: Florin Malita <fmalita@chromium.org>
2017-10-10 19:23:23 +00:00

51 lines
1.5 KiB
C++

/*
* 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 "SkTLazy.h"
#include "SkSVGRenderContext.h"
#include "SkSVGPoly.h"
#include "SkSVGValue.h"
SkSVGPoly::SkSVGPoly(SkSVGTag t) : INHERITED(t) {}
void SkSVGPoly::setPoints(const SkSVGPointsType& pts) {
fPath.reset();
fPath.addPoly(pts.value().begin(),
pts.value().count(),
this->tag() == SkSVGTag::kPolygon); // only polygons are auto-closed
}
void SkSVGPoly::onSetAttribute(SkSVGAttribute attr, const SkSVGValue& v) {
switch (attr) {
case SkSVGAttribute::kPoints:
if (const auto* pts = v.as<SkSVGPointsValue>()) {
this->setPoints(*pts);
}
break;
default:
this->INHERITED::onSetAttribute(attr, v);
}
}
void SkSVGPoly::onDraw(SkCanvas* canvas, const SkSVGLengthContext&, const SkPaint& paint,
SkPath::FillType fillType) const {
// the passed fillType follows inheritance rules and needs to be applied at draw time.
fPath.setFillType(fillType);
canvas->drawPath(fPath, paint);
}
SkPath SkSVGPoly::onAsPath(const SkSVGRenderContext& ctx) const {
SkPath path = fPath;
// clip-rule can be inherited and needs to be applied at clip time.
path.setFillType(ctx.presentationContext().fInherited.fClipRule.get()->asFillType());
this->mapToParent(&path);
return path;
}