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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 #include <cstdio>
     21 
     22 class ShapeAnimation;
     23 
     24 static TestScene::Registrar _Shapes(TestScene::Info{"shapes", "A grid of shape drawing test cases.",
     25                                                     TestScene::simpleCreateScene<ShapeAnimation>});
     26 
     27 class ShapeAnimation : public TestScene {
     28 public:
     29     sp<RenderNode> card;
     30     void createContent(int width, int height, Canvas& canvas) override {
     31         card = TestUtils::createNode(
     32                 0, 0, width, height, [width](RenderProperties& props, Canvas& canvas) {
     33                     std::function<void(Canvas&, float, const SkPaint&)> ops[] = {
     34                             [](Canvas& canvas, float size, const SkPaint& paint) {
     35                                 canvas.drawArc(0, 0, size, size, 50, 189, true, paint);
     36                             },
     37                             [](Canvas& canvas, float size, const SkPaint& paint) {
     38                                 canvas.drawOval(0, 0, size, size, paint);
     39                             },
     40                             [](Canvas& canvas, float size, const SkPaint& paint) {
     41                                 SkPath diamondPath;
     42                                 diamondPath.moveTo(size / 2, 0);
     43                                 diamondPath.lineTo(size, size / 2);
     44                                 diamondPath.lineTo(size / 2, size);
     45                                 diamondPath.lineTo(0, size / 2);
     46                                 diamondPath.close();
     47                                 canvas.drawPath(diamondPath, paint);
     48                             },
     49                             [](Canvas& canvas, float size, const SkPaint& paint) {
     50                                 float data[] = {0, 0, size, size, 0, size, size, 0};
     51                                 canvas.drawLines(data, sizeof(data) / sizeof(float), paint);
     52                             },
     53                             [](Canvas& canvas, float size, const SkPaint& paint) {
     54                                 float data[] = {0, 0, size, size, 0, size, size, 0};
     55                                 canvas.drawPoints(data, sizeof(data) / sizeof(float), paint);
     56                             },
     57                             [](Canvas& canvas, float size, const SkPaint& paint) {
     58                                 canvas.drawRect(0, 0, size, size, paint);
     59                             },
     60                             [](Canvas& canvas, float size, const SkPaint& paint) {
     61                                 float rad = size / 4;
     62                                 canvas.drawRoundRect(0, 0, size, size, rad, rad, paint);
     63                             }};
     64                     float cellSpace = dp(4);
     65                     float cellSize = floorf(width / 7 - cellSpace);
     66 
     67                     // each combination of strokeWidth + style gets a column
     68                     int outerCount = canvas.save(SaveFlags::MatrixClip);
     69                     SkPaint paint;
     70                     paint.setAntiAlias(true);
     71                     SkPaint::Style styles[] = {SkPaint::kStroke_Style, SkPaint::kFill_Style,
     72                                                SkPaint::kStrokeAndFill_Style};
     73                     for (auto style : styles) {
     74                         paint.setStyle(style);
     75                         for (auto strokeWidth : {0.0f, 0.5f, 8.0f}) {
     76                             paint.setStrokeWidth(strokeWidth);
     77                             // fill column with each op
     78                             int middleCount = canvas.save(SaveFlags::MatrixClip);
     79                             for (auto op : ops) {
     80                                 int innerCount = canvas.save(SaveFlags::MatrixClip);
     81                                 canvas.clipRect(0, 0, cellSize, cellSize, SkClipOp::kIntersect);
     82                                 canvas.drawColor(Color::White, SkBlendMode::kSrcOver);
     83                                 op(canvas, cellSize, paint);
     84                                 canvas.restoreToCount(innerCount);
     85                                 canvas.translate(cellSize + cellSpace, 0);
     86                             }
     87                             canvas.restoreToCount(middleCount);
     88                             canvas.translate(0, cellSize + cellSpace);
     89                         }
     90                     }
     91                     canvas.restoreToCount(outerCount);
     92                 });
     93         canvas.drawColor(Color::Grey_500, SkBlendMode::kSrcOver);
     94         canvas.drawRenderNode(card.get());
     95     }
     96 
     97     void doFrame(int frameNr) override {
     98         card->mutateStagingProperties().setTranslationY(frameNr % 150);
     99         card->setPropertyFieldsDirty(RenderNode::Y);
    100     }
    101 };
    102