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      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;
     44     void createContent(int width, int height, TestCanvas& canvas) override {
     45         content = TestUtils::createNode(0, 0, width, height,
     46                 [this, width, height](RenderProperties& props, TestCanvas& 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, SkXfermode::Mode::kSrcOver_Mode);
     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 
     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