1 /*
2  * Copyright (C) 2015 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #include "TestSceneBase.h"
18 #include "utils/Color.h"
19 
20 class OpPropAnimation;
21 
22 static TestScene::Registrar _Shapes(TestScene::Info{
23     "opprops",
24     "A minimal demonstration of CanvasProperty drawing operations.",
25     TestScene::simpleCreateScene<OpPropAnimation>
26 });
27 
28 class OpPropAnimation : public TestScene {
29 public:
30     sp<CanvasPropertyPaint> mPaint = new CanvasPropertyPaint(SkPaint());
31 
32     sp<CanvasPropertyPrimitive> mRoundRectLeft = new CanvasPropertyPrimitive(0);
33     sp<CanvasPropertyPrimitive> mRoundRectTop = new CanvasPropertyPrimitive(0);
34     sp<CanvasPropertyPrimitive> mRoundRectRight = new CanvasPropertyPrimitive(0);
35     sp<CanvasPropertyPrimitive> mRoundRectBottom = new CanvasPropertyPrimitive(0);
36     sp<CanvasPropertyPrimitive> mRoundRectRx = new CanvasPropertyPrimitive(0);
37     sp<CanvasPropertyPrimitive> mRoundRectRy = new CanvasPropertyPrimitive(0);
38 
39     sp<CanvasPropertyPrimitive> mCircleX = new CanvasPropertyPrimitive(0);
40     sp<CanvasPropertyPrimitive> mCircleY = new CanvasPropertyPrimitive(0);
41     sp<CanvasPropertyPrimitive> mCircleRadius = new CanvasPropertyPrimitive(0);
42 
43     sp<RenderNode> content;
createContent(int width,int height,Canvas & canvas)44     void createContent(int width, int height, Canvas& canvas) override {
45         content = TestUtils::createNode(0, 0, width, height,
46                 [this, width, height](RenderProperties& props, Canvas& canvas) {
47             mPaint->value.setAntiAlias(true);
48             mPaint->value.setColor(Color::Blue_500);
49 
50             mRoundRectRight->value = width / 2;
51             mRoundRectBottom->value = height / 2;
52 
53             mCircleX->value = width * 0.75;
54             mCircleY->value = height * 0.75;
55 
56             canvas.drawColor(Color::White, SkBlendMode::kSrcOver);
57             canvas.drawRoundRect(mRoundRectLeft.get(), mRoundRectTop.get(),
58                     mRoundRectRight.get(), mRoundRectBottom.get(),
59                     mRoundRectRx.get(), mRoundRectRy.get(), mPaint.get());
60             canvas.drawCircle(mCircleX.get(), mCircleY.get(), mCircleRadius.get(), mPaint.get());
61         });
62         canvas.drawRenderNode(content.get());
63     }
64 
doFrame(int frameNr)65     void doFrame(int frameNr) override {
66         float value = (abs((frameNr % 200) - 100)) / 100.0f;
67         mRoundRectRx->value = dp(10) + value * dp(40);
68         mRoundRectRy->value = dp(10) + value * dp(80);
69         mCircleRadius->value = value * dp(200);
70         content->setPropertyFieldsDirty(RenderNode::GENERIC);
71     }
72 };
73