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