1/*
2 * Copyright 2017 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/SkSGPaint.h"
9
10#include "include/private/SkTPin.h"
11#include "modules/sksg/include/SkSGRenderEffect.h"
12
13namespace sksg {
14
15// Paint nodes don't generate damage on their own, but via their aggregation ancestor Draw nodes.
16PaintNode::PaintNode() : INHERITED(kBubbleDamage_Trait) {}
17
18SkPaint PaintNode::makePaint() const {
19    SkASSERT(!this->hasInval());
20
21    SkPaint paint;
22
23    paint.setAntiAlias(fAntiAlias);
24    paint.setBlendMode(fBlendMode);
25    paint.setStyle(fStyle);
26    paint.setStrokeWidth(fStrokeWidth);
27    paint.setStrokeMiter(fStrokeMiter);
28    paint.setStrokeJoin(fStrokeJoin);
29    paint.setStrokeCap(fStrokeCap);
30
31    this->onApplyToPaint(&paint);
32
33    // Compose opacity on top of the subclass value.
34    paint.setAlpha(SkScalarRoundToInt(paint.getAlpha() * SkTPin<SkScalar>(fOpacity, 0, 1)));
35
36    return paint;
37}
38
39sk_sp<Color> Color::Make(SkColor c) {
40    return sk_sp<Color>(new Color(c));
41}
42
43Color::Color(SkColor c) : fColor(c) {}
44
45SkRect Color::onRevalidate(InvalidationController* ic, const SkMatrix& ctm) {
46    SkASSERT(this->hasInval());
47
48    return SkRect::MakeEmpty();
49}
50
51void Color::onApplyToPaint(SkPaint* paint) const {
52    paint->setColor(fColor);
53}
54
55sk_sp<ShaderPaint> ShaderPaint::Make(sk_sp<Shader> sh) {
56    return sh ? sk_sp<ShaderPaint>(new ShaderPaint(std::move(sh)))
57              : nullptr;
58}
59
60ShaderPaint::ShaderPaint(sk_sp<Shader> sh)
61    : fShader(std::move(sh)) {
62    this->observeInval(fShader);
63}
64
65ShaderPaint::~ShaderPaint() {
66    this->unobserveInval(fShader);
67}
68
69SkRect ShaderPaint::onRevalidate(InvalidationController* ic, const SkMatrix& ctm) {
70    SkASSERT(this->hasInval());
71
72    return fShader->revalidate(ic, ctm);
73}
74
75void ShaderPaint::onApplyToPaint(SkPaint* paint) const {
76    paint->setShader(fShader->getShader());
77}
78
79} // namespace sksg
80