bsalomon@google.com | 8c2fe99 | 2011-09-13 15:27:18 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2011 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
bungeman | d3ebb48 | 2015-08-05 13:57:49 -0700 | [diff] [blame] | 7 | |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 8 | #include "gm/gm.h" |
Ben Wagner | 7fde8e1 | 2019-05-01 17:28:53 -0400 | [diff] [blame] | 9 | #include "include/core/SkCanvas.h" |
| 10 | #include "include/core/SkColor.h" |
| 11 | #include "include/core/SkMatrix.h" |
| 12 | #include "include/core/SkPaint.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 13 | #include "include/core/SkPath.h" |
Ben Wagner | 7fde8e1 | 2019-05-01 17:28:53 -0400 | [diff] [blame] | 14 | #include "include/core/SkPoint.h" |
| 15 | #include "include/core/SkRect.h" |
| 16 | #include "include/core/SkScalar.h" |
| 17 | #include "include/core/SkShader.h" |
| 18 | #include "include/core/SkSize.h" |
| 19 | #include "include/core/SkString.h" |
| 20 | #include "include/core/SkTileMode.h" |
| 21 | #include "include/core/SkTypes.h" |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 22 | #include "include/effects/SkGradientShader.h" |
bsalomon@google.com | 8c2fe99 | 2011-09-13 15:27:18 +0000 | [diff] [blame] | 23 | |
| 24 | namespace skiagm { |
| 25 | |
| 26 | class FillTypePerspGM : public GM { |
| 27 | SkPath fPath; |
| 28 | public: |
reed@google.com | d42e3f6 | 2012-03-30 20:04:21 +0000 | [diff] [blame] | 29 | FillTypePerspGM() {} |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 30 | |
reed@google.com | d42e3f6 | 2012-03-30 20:04:21 +0000 | [diff] [blame] | 31 | void makePath() { |
| 32 | if (fPath.isEmpty()) { |
| 33 | const SkScalar radius = SkIntToScalar(45); |
| 34 | fPath.addCircle(SkIntToScalar(50), SkIntToScalar(50), radius); |
| 35 | fPath.addCircle(SkIntToScalar(100), SkIntToScalar(100), radius); |
| 36 | } |
bsalomon@google.com | 8c2fe99 | 2011-09-13 15:27:18 +0000 | [diff] [blame] | 37 | } |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 38 | |
bsalomon@google.com | 8c2fe99 | 2011-09-13 15:27:18 +0000 | [diff] [blame] | 39 | protected: |
commit-bot@chromium.org | a90c680 | 2014-04-30 13:20:45 +0000 | [diff] [blame] | 40 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 41 | SkString onShortName() override { |
bsalomon@google.com | 8c2fe99 | 2011-09-13 15:27:18 +0000 | [diff] [blame] | 42 | return SkString("filltypespersp"); |
| 43 | } |
| 44 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 45 | SkISize onISize() override { |
tfarina | f539318 | 2014-06-09 23:59:03 -0700 | [diff] [blame] | 46 | return SkISize::Make(835, 840); |
bsalomon@google.com | 8c2fe99 | 2011-09-13 15:27:18 +0000 | [diff] [blame] | 47 | } |
| 48 | |
| 49 | void showPath(SkCanvas* canvas, int x, int y, SkPath::FillType ft, |
| 50 | SkScalar scale, const SkPaint& paint) { |
bsalomon@google.com | 8c2fe99 | 2011-09-13 15:27:18 +0000 | [diff] [blame] | 51 | const SkRect r = { 0, 0, SkIntToScalar(150), SkIntToScalar(150) }; |
| 52 | |
| 53 | canvas->save(); |
| 54 | canvas->translate(SkIntToScalar(x), SkIntToScalar(y)); |
| 55 | canvas->clipRect(r); |
| 56 | canvas->drawColor(SK_ColorWHITE); |
| 57 | fPath.setFillType(ft); |
| 58 | canvas->translate(r.centerX(), r.centerY()); |
| 59 | canvas->scale(scale, scale); |
| 60 | canvas->translate(-r.centerX(), -r.centerY()); |
| 61 | canvas->drawPath(fPath, paint); |
| 62 | canvas->restore(); |
| 63 | } |
| 64 | |
| 65 | void showFour(SkCanvas* canvas, SkScalar scale, bool aa) { |
bsalomon@google.com | 8c2fe99 | 2011-09-13 15:27:18 +0000 | [diff] [blame] | 66 | SkPaint paint; |
| 67 | SkPoint center = SkPoint::Make(SkIntToScalar(100), SkIntToScalar(100)); |
| 68 | SkColor colors[] = {SK_ColorBLUE, SK_ColorRED, SK_ColorGREEN}; |
| 69 | SkScalar pos[] = {0, SK_ScalarHalf, SK_Scalar1}; |
reed | 2ad1aa6 | 2016-03-09 09:50:50 -0800 | [diff] [blame] | 70 | paint.setShader(SkGradientShader::MakeRadial(center, |
bsalomon@google.com | 8c2fe99 | 2011-09-13 15:27:18 +0000 | [diff] [blame] | 71 | SkIntToScalar(100), |
| 72 | colors, |
| 73 | pos, |
| 74 | SK_ARRAY_COUNT(colors), |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 75 | SkTileMode::kClamp)); |
bsalomon@google.com | 8c2fe99 | 2011-09-13 15:27:18 +0000 | [diff] [blame] | 76 | paint.setAntiAlias(aa); |
| 77 | |
| 78 | showPath(canvas, 0, 0, SkPath::kWinding_FillType, |
| 79 | scale, paint); |
| 80 | showPath(canvas, 200, 0, SkPath::kEvenOdd_FillType, |
| 81 | scale, paint); |
| 82 | showPath(canvas, 00, 200, SkPath::kInverseWinding_FillType, |
| 83 | scale, paint); |
| 84 | showPath(canvas, 200, 200, SkPath::kInverseEvenOdd_FillType, |
| 85 | scale, paint); |
| 86 | } |
| 87 | |
mtklein | 36352bf | 2015-03-25 18:17:31 -0700 | [diff] [blame] | 88 | void onDraw(SkCanvas* canvas) override { |
reed@google.com | d42e3f6 | 2012-03-30 20:04:21 +0000 | [diff] [blame] | 89 | this->makePath(); |
| 90 | |
bsalomon@google.com | 8c2fe99 | 2011-09-13 15:27:18 +0000 | [diff] [blame] | 91 | // do perspective drawPaint as the background; |
| 92 | SkPaint bkgnrd; |
bsalomon@google.com | cecd3ac | 2011-09-13 15:39:00 +0000 | [diff] [blame] | 93 | SkPoint center = SkPoint::Make(SkIntToScalar(100), |
| 94 | SkIntToScalar(100)); |
| 95 | SkColor colors[] = {SK_ColorBLACK, SK_ColorCYAN, |
| 96 | SK_ColorYELLOW, SK_ColorWHITE}; |
| 97 | SkScalar pos[] = {0, SK_ScalarHalf / 2, |
| 98 | 3 * SK_ScalarHalf / 2, SK_Scalar1}; |
reed | 2ad1aa6 | 2016-03-09 09:50:50 -0800 | [diff] [blame] | 99 | bkgnrd.setShader(SkGradientShader::MakeRadial(center, |
| 100 | SkIntToScalar(1000), |
| 101 | colors, |
| 102 | pos, |
| 103 | SK_ARRAY_COUNT(colors), |
Mike Reed | fae8fce | 2019-04-03 10:27:45 -0400 | [diff] [blame] | 104 | SkTileMode::kClamp)); |
bsalomon@google.com | 8c2fe99 | 2011-09-13 15:27:18 +0000 | [diff] [blame] | 105 | canvas->save(); |
| 106 | canvas->translate(SkIntToScalar(100), SkIntToScalar(100)); |
| 107 | SkMatrix mat; |
| 108 | mat.reset(); |
reed | 3f43f8a | 2015-01-20 19:58:36 -0800 | [diff] [blame] | 109 | mat.setPerspY(SK_Scalar1 / 1000); |
bsalomon@google.com | 8c2fe99 | 2011-09-13 15:27:18 +0000 | [diff] [blame] | 110 | canvas->concat(mat); |
| 111 | canvas->drawPaint(bkgnrd); |
| 112 | canvas->restore(); |
| 113 | |
| 114 | // draw the paths in perspective |
| 115 | SkMatrix persp; |
| 116 | persp.reset(); |
reed | 3f43f8a | 2015-01-20 19:58:36 -0800 | [diff] [blame] | 117 | persp.setPerspX(-SK_Scalar1 / 1800); |
| 118 | persp.setPerspY(SK_Scalar1 / 500); |
bsalomon@google.com | 8c2fe99 | 2011-09-13 15:27:18 +0000 | [diff] [blame] | 119 | canvas->concat(persp); |
| 120 | |
| 121 | canvas->translate(SkIntToScalar(20), SkIntToScalar(20)); |
| 122 | const SkScalar scale = SkIntToScalar(5)/4; |
| 123 | |
| 124 | showFour(canvas, SK_Scalar1, false); |
| 125 | canvas->translate(SkIntToScalar(450), 0); |
bsalomon@google.com | cecd3ac | 2011-09-13 15:39:00 +0000 | [diff] [blame] | 126 | showFour(canvas, scale, false); |
bsalomon@google.com | 8c2fe99 | 2011-09-13 15:27:18 +0000 | [diff] [blame] | 127 | |
| 128 | canvas->translate(SkIntToScalar(-450), SkIntToScalar(450)); |
| 129 | showFour(canvas, SK_Scalar1, true); |
| 130 | canvas->translate(SkIntToScalar(450), 0); |
bsalomon@google.com | cecd3ac | 2011-09-13 15:39:00 +0000 | [diff] [blame] | 131 | showFour(canvas, scale, true); |
bsalomon@google.com | 8c2fe99 | 2011-09-13 15:27:18 +0000 | [diff] [blame] | 132 | } |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 133 | |
bsalomon@google.com | 8c2fe99 | 2011-09-13 15:27:18 +0000 | [diff] [blame] | 134 | private: |
| 135 | typedef GM INHERITED; |
| 136 | }; |
| 137 | |
| 138 | ////////////////////////////////////////////////////////////////////////////// |
| 139 | |
Hal Canary | e964c18 | 2019-01-23 10:22:01 -0500 | [diff] [blame] | 140 | DEF_GM( return new FillTypePerspGM; ) |
bsalomon@google.com | 8c2fe99 | 2011-09-13 15:27:18 +0000 | [diff] [blame] | 141 | |
| 142 | } |