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 #include <SkBlendMode.h>
21 
22 class TextAnimation;
23 
24 static TestScene::Registrar _Text(TestScene::Info{"text", "Draws a bunch of text.",
25                                                   TestScene::simpleCreateScene<TextAnimation>});
26 
27 class TextAnimation : public TestScene {
28 public:
29     sp<RenderNode> card;
createContent(int width,int height,Canvas & canvas)30     void createContent(int width, int height, Canvas& canvas) override {
31         canvas.drawColor(Color::White, SkBlendMode::kSrcOver);
32         card = TestUtils::createNode(0, 0, width, height, [](RenderProperties& props,
33                                                              Canvas& canvas) {
34             Paint paint;
35             paint.setAntiAlias(true);
36             paint.getSkFont().setSize(50);
37 
38             paint.setColor(Color::Black);
39             for (int i = 0; i < 10; i++) {
40                 TestUtils::drawUtf8ToCanvas(&canvas, "Test string", paint, 400, i * 100);
41             }
42 
43             SkPath path;
44             path.addOval(SkRect::MakeLTRB(100, 100, 300, 300));
45 
46             paint.setColor(Color::Blue_500);
47             TestUtils::drawUtf8ToCanvas(&canvas, "This is a neat circle of text!", paint, path);
48         });
49         canvas.drawRenderNode(card.get());
50     }
51 
doFrame(int frameNr)52     void doFrame(int frameNr) override {
53         int curFrame = frameNr % 150;
54         card->mutateStagingProperties().setTranslationX(curFrame);
55         card->mutateStagingProperties().setTranslationY(curFrame);
56         card->setPropertyFieldsDirty(RenderNode::X | RenderNode::Y);
57     }
58 };
59