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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{
25     "shapes",
26     "A grid of shape drawing test cases.",
27     TestScene::simpleCreateScene<ShapeAnimation>
28 });
29 
30 class ShapeAnimation : public TestScene {
31 public:
32     sp<RenderNode> card;
createContent(int width,int height,Canvas & canvas)33     void createContent(int width, int height, Canvas& canvas) override {
34         card = TestUtils::createNode(0, 0, width, height,
35                 [width](RenderProperties& props, Canvas& canvas) {
36             std::function<void(Canvas&, float, const SkPaint&)> ops[] = {
37                 [](Canvas& canvas, float size, const SkPaint& paint) {
38                     canvas.drawArc(0, 0, size, size, 50, 189, true, paint);
39                 },
40                 [](Canvas& canvas, float size, const SkPaint& paint) {
41                     canvas.drawOval(0, 0, size, size, paint);
42                 },
43                 [](Canvas& canvas, float size, const SkPaint& paint) {
44                     SkPath diamondPath;
45                     diamondPath.moveTo(size / 2, 0);
46                     diamondPath.lineTo(size, size / 2);
47                     diamondPath.lineTo(size / 2, size);
48                     diamondPath.lineTo(0, size / 2);
49                     diamondPath.close();
50                     canvas.drawPath(diamondPath, paint);
51                 },
52                 [](Canvas& canvas, float size, const SkPaint& paint) {
53                     float data[] = {0, 0, size, size, 0, size, size, 0 };
54                     canvas.drawLines(data, sizeof(data) / sizeof(float), paint);
55                 },
56                 [](Canvas& canvas, float size, const SkPaint& paint) {
57                     float data[] = {0, 0, size, size, 0, size, size, 0 };
58                     canvas.drawPoints(data, sizeof(data) / sizeof(float), paint);
59                 },
60                 [](Canvas& canvas, float size, const SkPaint& paint) {
61                     canvas.drawRect(0, 0, size, size, paint);
62                 },
63                 [](Canvas& canvas, float size, const SkPaint& paint) {
64                     float rad = size / 4;
65                     canvas.drawRoundRect(0, 0, size, size, rad, rad, paint);
66                 }
67             };
68             float cellSpace = dp(4);
69             float cellSize = floorf(width / 7 - cellSpace);
70 
71             // each combination of strokeWidth + style gets a column
72             int outerCount = canvas.save(SaveFlags::MatrixClip);
73             SkPaint paint;
74             paint.setAntiAlias(true);
75             SkPaint::Style styles[] = {
76                     SkPaint::kStroke_Style, SkPaint::kFill_Style, SkPaint::kStrokeAndFill_Style };
77             for (auto style : styles) {
78                 paint.setStyle(style);
79                 for (auto strokeWidth : { 0.0f, 0.5f, 8.0f }) {
80                     paint.setStrokeWidth(strokeWidth);
81                     // fill column with each op
82                     int middleCount = canvas.save(SaveFlags::MatrixClip);
83                     for (auto op : ops) {
84                         int innerCount = canvas.save(SaveFlags::MatrixClip);
85                         canvas.clipRect(0, 0, cellSize, cellSize, SkClipOp::kIntersect);
86                         canvas.drawColor(Color::White, SkBlendMode::kSrcOver);
87                         op(canvas, cellSize, paint);
88                         canvas.restoreToCount(innerCount);
89                         canvas.translate(cellSize + cellSpace, 0);
90                     }
91                     canvas.restoreToCount(middleCount);
92                     canvas.translate(0, cellSize + cellSpace);
93                 }
94             }
95             canvas.restoreToCount(outerCount);
96         });
97         canvas.drawColor(Color::Grey_500, SkBlendMode::kSrcOver);
98         canvas.drawRenderNode(card.get());
99     }
100 
doFrame(int frameNr)101     void doFrame(int frameNr) override {
102         card->mutateStagingProperties().setTranslationY(frameNr % 150);
103         card->setPropertyFieldsDirty(RenderNode::Y);
104     }
105 };
106