1/*
2 * Copyright 2018 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 "modules/sksg/include/SkSGGeometryTransform.h"
9
10#include "include/core/SkCanvas.h"
11#include "modules/sksg/include/SkSGTransform.h"
12#include "modules/sksg/src/SkSGTransformPriv.h"
13
14namespace sksg {
15
16GeometryTransform::GeometryTransform(sk_sp<GeometryNode> child, sk_sp<Transform> transform)
17 : fChild(std::move(child))
18 , fTransform(std::move(transform)) {
19 this->observeInval(fChild);
20 this->observeInval(fTransform);
21}
22
23GeometryTransform::~GeometryTransform() {
24 this->unobserveInval(fChild);
25 this->unobserveInval(fTransform);
26}
27
28void GeometryTransform::onClip(SkCanvas* canvas, bool antiAlias) const {
29 canvas->clipPath(fTransformedPath, SkClipOp::kIntersect, antiAlias);
30}
31
32void GeometryTransform::onDraw(SkCanvas* canvas, const SkPaint& paint) const {
33 canvas->drawPath(fTransformedPath, paint);
34}
35
36bool GeometryTransform::onContains(const SkPoint& p) const {
37 return fTransformedPath.contains(p.x(), p.y());
38}
39
40SkRect GeometryTransform::onRevalidate(InvalidationController* ic, const SkMatrix& ctm) {
41 SkASSERT(this->hasInval());
42
43 // We don't care about matrix reval results.
44 fTransform->revalidate(ic, ctm);
45 const auto m = TransformPriv::As<SkMatrix>(fTransform);
46
47 auto bounds = fChild->revalidate(ic, ctm);
48 fTransformedPath = fChild->asPath();
49 fTransformedPath.transform(m);
50 fTransformedPath.shrinkToFit();
51
52 m.mapRect(&bounds);
53 return bounds;
54}
55
56SkPath GeometryTransform::onAsPath() const {
57 return fTransformedPath;
58}
59
60} // namespace sksg
61