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", "A minimal demonstration of CanvasProperty drawing operations.",
24         TestScene::simpleCreateScene<OpPropAnimation>});
25 
26 class OpPropAnimation : public TestScene {
27 public:
28     sp<CanvasPropertyPaint> mPaint = new CanvasPropertyPaint(SkPaint());
29 
30     sp<CanvasPropertyPrimitive> mRoundRectLeft = new CanvasPropertyPrimitive(0);
31     sp<CanvasPropertyPrimitive> mRoundRectTop = new CanvasPropertyPrimitive(0);
32     sp<CanvasPropertyPrimitive> mRoundRectRight = new CanvasPropertyPrimitive(0);
33     sp<CanvasPropertyPrimitive> mRoundRectBottom = new CanvasPropertyPrimitive(0);
34     sp<CanvasPropertyPrimitive> mRoundRectRx = new CanvasPropertyPrimitive(0);
35     sp<CanvasPropertyPrimitive> mRoundRectRy = new CanvasPropertyPrimitive(0);
36 
37     sp<CanvasPropertyPrimitive> mCircleX = new CanvasPropertyPrimitive(0);
38     sp<CanvasPropertyPrimitive> mCircleY = new CanvasPropertyPrimitive(0);
39     sp<CanvasPropertyPrimitive> mCircleRadius = new CanvasPropertyPrimitive(0);
40 
41     sp<RenderNode> content;
createContent(int width,int height,Canvas & canvas)42     void createContent(int width, int height, Canvas& canvas) override {
43         content = TestUtils::createNode(0, 0, width, height, [this, width, height](
44                                                                      RenderProperties& props,
45                                                                      Canvas& canvas) {
46             mPaint->value.setAntiAlias(true);
47             mPaint->value.setColor(Color::Blue_500);
48 
49             mRoundRectRight->value = width / 2;
50             mRoundRectBottom->value = height / 2;
51 
52             mCircleX->value = width * 0.75;
53             mCircleY->value = height * 0.75;
54 
55             canvas.drawColor(Color::White, SkBlendMode::kSrcOver);
56             canvas.drawRoundRect(mRoundRectLeft.get(), mRoundRectTop.get(), mRoundRectRight.get(),
57                                  mRoundRectBottom.get(), mRoundRectRx.get(), mRoundRectRy.get(),
58                                  mPaint.get());
59             canvas.drawCircle(mCircleX.get(), mCircleY.get(), mCircleRadius.get(), mPaint.get());
60         });
61         canvas.drawRenderNode(content.get());
62     }
63 
doFrame(int frameNr)64     void doFrame(int frameNr) override {
65         float value = (abs((frameNr % 200) - 100)) / 100.0f;
66         mRoundRectRx->value = dp(10) + value * dp(40);
67         mRoundRectRy->value = dp(10) + value * dp(80);
68         mCircleRadius->value = value * dp(200);
69         content->setPropertyFieldsDirty(RenderNode::GENERIC);
70     }
71 };
72