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 "hwui/Paint.h"
19 
20 class TextAnimation;
21 
22 static TestScene::Registrar _Text(TestScene::Info{"text", "Draws a bunch of text.",
23                                                   TestScene::simpleCreateScene<TextAnimation>});
24 
25 class TextAnimation : public TestScene {
26 public:
27     sp<RenderNode> card;
createContent(int width,int height,Canvas & canvas)28     void createContent(int width, int height, Canvas& canvas) override {
29         canvas.drawColor(Color::White, SkBlendMode::kSrcOver);
30         card = TestUtils::createNode(0, 0, width, height, [](RenderProperties& props,
31                                                              Canvas& canvas) {
32             Paint paint;
33             paint.setAntiAlias(true);
34             paint.getSkFont().setSize(50);
35 
36             paint.setColor(Color::Black);
37             for (int i = 0; i < 10; i++) {
38                 TestUtils::drawUtf8ToCanvas(&canvas, "Test string", paint, 400, i * 100);
39             }
40 
41             SkPath path;
42             path.addOval(SkRect::MakeLTRB(100, 100, 300, 300));
43 
44             paint.setColor(Color::Blue_500);
45             TestUtils::drawUtf8ToCanvas(&canvas, "This is a neat circle of text!", paint, path);
46         });
47         canvas.drawRenderNode(card.get());
48     }
49 
doFrame(int frameNr)50     void doFrame(int frameNr) override {
51         int curFrame = frameNr % 150;
52         card->mutateStagingProperties().setTranslationX(curFrame);
53         card->mutateStagingProperties().setTranslationY(curFrame);
54         card->setPropertyFieldsDirty(RenderNode::X | RenderNode::Y);
55     }
56 };
57