Bruce Wang | 77bf48a | 2018-07-18 15:32:08 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2018 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 | */ |
| 7 | |
| 8 | #include "gm.h" |
| 9 | #include "sk_tool_utils.h" |
| 10 | |
| 11 | #include "Resources.h" |
| 12 | #include "SkCanvas.h" |
Mike Reed | 9cd2a5c | 2019-01-22 15:17:59 -0500 | [diff] [blame] | 13 | #include "SkFontMetrics.h" |
Bruce Wang | 77bf48a | 2018-07-18 15:32:08 -0400 | [diff] [blame] | 14 | #include "SkStream.h" |
| 15 | #include "SkTo.h" |
| 16 | #include "SkTypeface.h" |
| 17 | |
| 18 | namespace skiagm { |
| 19 | class ScaledEmojiRenderingGM : public GM { |
| 20 | public: |
| 21 | ScaledEmojiRenderingGM() {} |
| 22 | |
| 23 | protected: |
| 24 | sk_sp<SkTypeface> typefaces[4]; |
| 25 | |
| 26 | void onOnceBeforeDraw() override { |
| 27 | typefaces[0] = MakeResourceAsTypeface("fonts/colr.ttf"); |
| 28 | typefaces[1] = MakeResourceAsTypeface("fonts/sbix.ttf"); |
| 29 | typefaces[2] = MakeResourceAsTypeface("fonts/cbdt.ttf"); |
| 30 | typefaces[3] = sk_tool_utils::create_portable_typeface("Emoji", SkFontStyle()); |
| 31 | } |
| 32 | |
| 33 | SkString onShortName() override { |
Mike Klein | bea1f94 | 2019-03-08 11:11:55 -0600 | [diff] [blame^] | 34 | return SkString("scaledemoji_rendering"); |
Bruce Wang | 77bf48a | 2018-07-18 15:32:08 -0400 | [diff] [blame] | 35 | } |
| 36 | |
| 37 | SkISize onISize() override { return SkISize::Make(1200, 1200); } |
| 38 | |
| 39 | void onDraw(SkCanvas* canvas) override { |
| 40 | |
Mike Klein | d46dce3 | 2018-08-16 10:17:03 -0400 | [diff] [blame] | 41 | canvas->drawColor(SK_ColorGRAY); |
Bruce Wang | 77bf48a | 2018-07-18 15:32:08 -0400 | [diff] [blame] | 42 | SkScalar y = 0; |
| 43 | |
| 44 | for (const auto& typeface: typefaces) { |
Mike Reed | 088b74e | 2018-12-24 14:52:46 -0500 | [diff] [blame] | 45 | SkFont font(typeface); |
| 46 | font.setEdging(SkFont::Edging::kAlias); |
| 47 | |
Bruce Wang | 77bf48a | 2018-07-18 15:32:08 -0400 | [diff] [blame] | 48 | SkPaint paint; |
Bruce Wang | 77bf48a | 2018-07-18 15:32:08 -0400 | [diff] [blame] | 49 | const char* text = sk_tool_utils::emoji_sample_text(); |
Mike Reed | b5784ac | 2018-11-12 09:35:15 -0500 | [diff] [blame] | 50 | SkFontMetrics metrics; |
Bruce Wang | 77bf48a | 2018-07-18 15:32:08 -0400 | [diff] [blame] | 51 | |
| 52 | for (SkScalar textSize : { 70, 150 }) { |
Mike Reed | 088b74e | 2018-12-24 14:52:46 -0500 | [diff] [blame] | 53 | font.setSize(textSize); |
| 54 | font.getMetrics(&metrics); |
Bruce Wang | 77bf48a | 2018-07-18 15:32:08 -0400 | [diff] [blame] | 55 | // All typefaces should support subpixel mode |
Mike Reed | 088b74e | 2018-12-24 14:52:46 -0500 | [diff] [blame] | 56 | font.setSubpixel(true); |
Bruce Wang | 77bf48a | 2018-07-18 15:32:08 -0400 | [diff] [blame] | 57 | y += -metrics.fAscent; |
| 58 | |
Mike Reed | 088b74e | 2018-12-24 14:52:46 -0500 | [diff] [blame] | 59 | canvas->drawSimpleText(text, strlen(text), kUTF8_SkTextEncoding, |
| 60 | 10, y, font, paint); |
Bruce Wang | 77bf48a | 2018-07-18 15:32:08 -0400 | [diff] [blame] | 61 | y += metrics.fDescent + metrics.fLeading; |
| 62 | } |
| 63 | } |
| 64 | } |
| 65 | |
| 66 | private: |
| 67 | typedef GM INHERITED; |
| 68 | }; |
| 69 | |
| 70 | ////////////////////////////////////////////////////////////////////////////// |
| 71 | |
| 72 | DEF_GM(return new ScaledEmojiRenderingGM;) |
Mike Klein | d46dce3 | 2018-08-16 10:17:03 -0400 | [diff] [blame] | 73 | } |