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 "SkSGScene.h"
9
10 #include "SkCanvas.h"
11 #include "SkMatrix.h"
12 #include "SkPaint.h"
13 #include "SkSGInvalidationController.h"
14 #include "SkSGRenderNode.h"
15
16 namespace sksg {
17
18 Animator::Animator() = default;
19 Animator::~Animator() = default;
20
tick(float t)21 void Animator::tick(float t) {
22 this->onTick(t);
23 }
24
GroupAnimator(AnimatorList && animators)25 GroupAnimator::GroupAnimator(AnimatorList&& animators)
26 : fAnimators(std::move(animators)) {}
27
onTick(float t)28 void GroupAnimator::onTick(float t) {
29 for (const auto& a : fAnimators) {
30 a->tick(t);
31 }
32 }
33
Make(sk_sp<RenderNode> root,AnimatorList && anims)34 std::unique_ptr<Scene> Scene::Make(sk_sp<RenderNode> root, AnimatorList&& anims) {
35 return root ? std::unique_ptr<Scene>(new Scene(std::move(root), std::move(anims))) : nullptr;
36 }
37
Scene(sk_sp<RenderNode> root,AnimatorList && animators)38 Scene::Scene(sk_sp<RenderNode> root, AnimatorList&& animators)
39 : fRoot(std::move(root))
40 , fAnimators(std::move(animators)) {}
41
42 Scene::~Scene() = default;
43
render(SkCanvas * canvas) const44 void Scene::render(SkCanvas* canvas) const {
45 // TODO: externalize the inval controller.
46 // TODO: relocate the revalidation to tick()?
47 InvalidationController ic;
48 fRoot->revalidate(fShowInval ? &ic : nullptr, SkMatrix::I());
49 fRoot->render(canvas);
50
51 if (fShowInval) {
52 SkPaint fill, stroke;
53 fill.setAntiAlias(true);
54 fill.setColor(0x40ff0000);
55 stroke.setAntiAlias(true);
56 stroke.setColor(0xffff0000);
57 stroke.setStyle(SkPaint::kStroke_Style);
58
59 for (const auto& r : ic) {
60 canvas->drawRect(r, fill);
61 canvas->drawRect(r, stroke);
62 }
63 }
64 }
65
animate(float t)66 void Scene::animate(float t) {
67 for (const auto& anim : fAnimators) {
68 anim->tick(t);
69 }
70 }
71
nodeAt(const SkPoint & p) const72 const RenderNode* Scene::nodeAt(const SkPoint& p) const {
73 return fRoot->nodeAt(p);
74 }
75
76 } // namespace sksg
77