Robert Phillips | 4c72b26 | 2017-08-15 13:28:42 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2017 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 | |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 8 | #include "samplecode/Sample.h" |
| 9 | #include "tools/Resources.h" |
| 10 | #include "tools/ToolUtils.h" |
Robert Phillips | 4c72b26 | 2017-08-15 13:28:42 -0400 | [diff] [blame] | 11 | |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 12 | #include "include/core/SkCanvas.h" |
| 13 | #include "include/core/SkFontMetrics.h" |
| 14 | #include "include/core/SkFontMgr.h" |
| 15 | #include "include/core/SkTextBlob.h" |
| 16 | #include "include/core/SkTypeface.h" |
| 17 | #include "include/utils/SkRandom.h" |
Robert Phillips | 4c72b26 | 2017-08-15 13:28:42 -0400 | [diff] [blame] | 18 | |
Jim Van Verth | 87d18ce | 2018-01-22 12:45:47 -0500 | [diff] [blame] | 19 | #if SK_SUPPORT_GPU |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 20 | #include "include/gpu/GrContext.h" |
| 21 | #include "src/gpu/GrContextPriv.h" |
Jim Van Verth | 87d18ce | 2018-01-22 12:45:47 -0500 | [diff] [blame] | 22 | #endif |
| 23 | |
Robert Phillips | 4c72b26 | 2017-08-15 13:28:42 -0400 | [diff] [blame] | 24 | static sk_sp<SkTypeface> chinese_typeface() { |
| 25 | #ifdef SK_BUILD_FOR_ANDROID |
Hal Canary | 53e5e7d | 2017-12-08 14:25:14 -0500 | [diff] [blame] | 26 | return MakeResourceAsTypeface("fonts/NotoSansCJK-Regular.ttc"); |
Mike Klein | 8f11d4d | 2018-01-24 12:42:55 -0500 | [diff] [blame] | 27 | #elif defined(SK_BUILD_FOR_WIN) |
Robert Phillips | 4c72b26 | 2017-08-15 13:28:42 -0400 | [diff] [blame] | 28 | return SkTypeface::MakeFromName("SimSun", SkFontStyle()); |
| 29 | #elif defined(SK_BUILD_FOR_MAC) |
| 30 | return SkTypeface::MakeFromName("Hiragino Sans GB W3", SkFontStyle()); |
| 31 | #elif defined(SK_BUILD_FOR_IOS) |
| 32 | return SkTypeface::MakeFromName("Hiragino Sans GB W3", SkFontStyle()); |
| 33 | #elif defined(SK_BUILD_FOR_UNIX) |
| 34 | return SkTypeface::MakeFromName("Noto Sans CJK SC", SkFontStyle()); |
| 35 | #else |
| 36 | return nullptr; |
| 37 | #endif |
| 38 | } |
| 39 | |
Ben Wagner | b2c4ea6 | 2018-08-08 11:36:17 -0400 | [diff] [blame] | 40 | class ChineseFlingView : public Sample { |
Robert Phillips | 4c72b26 | 2017-08-15 13:28:42 -0400 | [diff] [blame] | 41 | public: |
Jim Van Verth | c3269ae | 2017-09-28 15:04:00 -0400 | [diff] [blame] | 42 | ChineseFlingView() : fBlobs(kNumBlobs) {} |
Robert Phillips | 4c72b26 | 2017-08-15 13:28:42 -0400 | [diff] [blame] | 43 | |
| 44 | protected: |
Hal Canary | 8a02731 | 2019-07-03 10:55:44 -0400 | [diff] [blame] | 45 | SkString name() override { return SkString("chinese-fling"); } |
Robert Phillips | 4c72b26 | 2017-08-15 13:28:42 -0400 | [diff] [blame] | 46 | |
| 47 | void onDrawContent(SkCanvas* canvas) override { |
| 48 | if (!fInitialized) { |
| 49 | this->init(); |
| 50 | fInitialized = true; |
| 51 | } |
| 52 | |
| 53 | canvas->clear(0xFFDDDDDD); |
| 54 | |
| 55 | SkPaint paint; |
Mike Reed | 12a6d45 | 2018-12-21 22:22:31 -0500 | [diff] [blame] | 56 | paint.setColor(0xDE000000); |
Robert Phillips | 4c72b26 | 2017-08-15 13:28:42 -0400 | [diff] [blame] | 57 | |
Jim Van Verth | c3269ae | 2017-09-28 15:04:00 -0400 | [diff] [blame] | 58 | // draw a consistent run of the 'words' - one word per line |
| 59 | int index = fIndex; |
Robert Phillips | 4c72b26 | 2017-08-15 13:28:42 -0400 | [diff] [blame] | 60 | for (SkScalar y = 0.0f; y < 1024.0f; ) { |
Robert Phillips | 4c72b26 | 2017-08-15 13:28:42 -0400 | [diff] [blame] | 61 | |
| 62 | y += -fMetrics.fAscent; |
| 63 | canvas->drawTextBlob(fBlobs[index], 0, y, paint); |
| 64 | |
| 65 | y += fMetrics.fDescent + fMetrics.fLeading; |
Jim Van Verth | c3269ae | 2017-09-28 15:04:00 -0400 | [diff] [blame] | 66 | ++index; |
| 67 | index %= fBlobs.count(); |
Robert Phillips | 4c72b26 | 2017-08-15 13:28:42 -0400 | [diff] [blame] | 68 | } |
Jim Van Verth | c3269ae | 2017-09-28 15:04:00 -0400 | [diff] [blame] | 69 | // now "fling" a random amount |
| 70 | fIndex += fRand.nextRangeU(5, 20); |
| 71 | fIndex %= fBlobs.count(); |
Robert Phillips | 4c72b26 | 2017-08-15 13:28:42 -0400 | [diff] [blame] | 72 | } |
| 73 | |
| 74 | private: |
Jim Van Verth | c3269ae | 2017-09-28 15:04:00 -0400 | [diff] [blame] | 75 | static constexpr auto kNumBlobs = 200; |
| 76 | static constexpr auto kWordLength = 16; |
| 77 | |
Robert Phillips | 4c72b26 | 2017-08-15 13:28:42 -0400 | [diff] [blame] | 78 | void init() { |
| 79 | fTypeface = chinese_typeface(); |
| 80 | |
Mike Reed | 12a6d45 | 2018-12-21 22:22:31 -0500 | [diff] [blame] | 81 | SkFont font(fTypeface, 56); |
| 82 | font.getMetrics(&fMetrics); |
Robert Phillips | 4c72b26 | 2017-08-15 13:28:42 -0400 | [diff] [blame] | 83 | |
Jim Van Verth | c3269ae | 2017-09-28 15:04:00 -0400 | [diff] [blame] | 84 | SkUnichar glyphs[kWordLength]; |
| 85 | for (int32_t i = 0; i < kNumBlobs; ++i) { |
| 86 | this->createRandomWord(glyphs); |
Robert Phillips | 4c72b26 | 2017-08-15 13:28:42 -0400 | [diff] [blame] | 87 | |
| 88 | SkTextBlobBuilder builder; |
Mike Klein | ea3f014 | 2019-03-20 11:12:10 -0500 | [diff] [blame] | 89 | ToolUtils::add_to_text_blob_w_len(&builder, |
| 90 | (const char*)glyphs, |
| 91 | kWordLength * 4, |
Ben Wagner | 51e15a6 | 2019-05-07 15:38:46 -0400 | [diff] [blame] | 92 | SkTextEncoding::kUTF32, |
Mike Klein | ea3f014 | 2019-03-20 11:12:10 -0500 | [diff] [blame] | 93 | font, |
| 94 | 0, |
| 95 | 0); |
Robert Phillips | 4c72b26 | 2017-08-15 13:28:42 -0400 | [diff] [blame] | 96 | |
| 97 | fBlobs.emplace_back(builder.make()); |
| 98 | } |
Jim Van Verth | c3269ae | 2017-09-28 15:04:00 -0400 | [diff] [blame] | 99 | |
| 100 | fIndex = 0; |
| 101 | } |
| 102 | |
| 103 | // Construct a random kWordLength character 'word' drawing from the full Chinese set |
| 104 | void createRandomWord(SkUnichar glyphs[kWordLength]) { |
| 105 | for (int i = 0; i < kWordLength; ++i) { |
| 106 | glyphs[i] = fRand.nextRangeU(0x4F00, 0x9FA0); |
| 107 | } |
Robert Phillips | 4c72b26 | 2017-08-15 13:28:42 -0400 | [diff] [blame] | 108 | } |
| 109 | |
| 110 | bool fInitialized = false; |
| 111 | sk_sp<SkTypeface> fTypeface; |
Mike Reed | b5784ac | 2018-11-12 09:35:15 -0500 | [diff] [blame] | 112 | SkFontMetrics fMetrics; |
Robert Phillips | 4c72b26 | 2017-08-15 13:28:42 -0400 | [diff] [blame] | 113 | SkTArray<sk_sp<SkTextBlob>> fBlobs; |
| 114 | SkRandom fRand; |
Jim Van Verth | c3269ae | 2017-09-28 15:04:00 -0400 | [diff] [blame] | 115 | int fIndex; |
Robert Phillips | 4c72b26 | 2017-08-15 13:28:42 -0400 | [diff] [blame] | 116 | |
Ben Wagner | b2c4ea6 | 2018-08-08 11:36:17 -0400 | [diff] [blame] | 117 | typedef Sample INHERITED; |
Robert Phillips | 4c72b26 | 2017-08-15 13:28:42 -0400 | [diff] [blame] | 118 | }; |
| 119 | |
Ben Wagner | b2c4ea6 | 2018-08-08 11:36:17 -0400 | [diff] [blame] | 120 | class ChineseZoomView : public Sample { |
Jim Van Verth | 87d18ce | 2018-01-22 12:45:47 -0500 | [diff] [blame] | 121 | public: |
Jim Van Verth | cad0acf | 2018-02-16 18:41:41 -0500 | [diff] [blame] | 122 | ChineseZoomView() : fBlobs(kNumBlobs), fScale(15.0f), fTranslate(0.0f) {} |
Jim Van Verth | 87d18ce | 2018-01-22 12:45:47 -0500 | [diff] [blame] | 123 | |
| 124 | protected: |
Hal Canary | 8a02731 | 2019-07-03 10:55:44 -0400 | [diff] [blame] | 125 | SkString name() override { return SkString("chinese-zoom"); } |
| 126 | |
Hal Canary | 6cc65e1 | 2019-07-03 15:53:04 -0400 | [diff] [blame] | 127 | bool onChar(SkUnichar uni) override { |
Jim Van Verth | 87d18ce | 2018-01-22 12:45:47 -0500 | [diff] [blame] | 128 | if ('>' == uni) { |
| 129 | fScale += 0.125f; |
| 130 | return true; |
| 131 | } |
| 132 | if ('<' == uni) { |
| 133 | fScale -= 0.125f; |
| 134 | return true; |
| 135 | } |
Hal Canary | 6cc65e1 | 2019-07-03 15:53:04 -0400 | [diff] [blame] | 136 | return false; |
Jim Van Verth | 87d18ce | 2018-01-22 12:45:47 -0500 | [diff] [blame] | 137 | } |
| 138 | |
| 139 | void onDrawContent(SkCanvas* canvas) override { |
Jim Van Verth | cad0acf | 2018-02-16 18:41:41 -0500 | [diff] [blame] | 140 | bool afterFirstFrame = fInitialized; |
Jim Van Verth | 87d18ce | 2018-01-22 12:45:47 -0500 | [diff] [blame] | 141 | if (!fInitialized) { |
| 142 | this->init(); |
| 143 | fInitialized = true; |
| 144 | } |
| 145 | |
| 146 | canvas->clear(0xFFDDDDDD); |
| 147 | |
| 148 | SkPaint paint; |
| 149 | paint.setAntiAlias(true); |
| 150 | paint.setColor(0xDE000000); |
Jim Van Verth | 87d18ce | 2018-01-22 12:45:47 -0500 | [diff] [blame] | 151 | |
Jim Van Verth | cad0acf | 2018-02-16 18:41:41 -0500 | [diff] [blame] | 152 | if (afterFirstFrame) { |
Jim Van Verth | 87d18ce | 2018-01-22 12:45:47 -0500 | [diff] [blame] | 153 | #if SK_SUPPORT_GPU |
Jim Van Verth | cad0acf | 2018-02-16 18:41:41 -0500 | [diff] [blame] | 154 | GrContext* grContext = canvas->getGrContext(); |
| 155 | if (grContext) { |
| 156 | sk_sp<SkImage> image = |
Robert Phillips | dbaf317 | 2019-02-06 15:12:53 -0500 | [diff] [blame] | 157 | grContext->priv().testingOnly_getFontAtlasImage( |
Robert Phillips | 0c4b7b1 | 2018-03-06 08:20:37 -0500 | [diff] [blame] | 158 | GrMaskFormat::kA8_GrMaskFormat, 0); |
Jim Van Verth | cad0acf | 2018-02-16 18:41:41 -0500 | [diff] [blame] | 159 | canvas->drawImageRect(image, |
| 160 | SkRect::MakeXYWH(10.0f, 10.0f, 512.0f, 512.0), &paint); |
Robert Phillips | dbaf317 | 2019-02-06 15:12:53 -0500 | [diff] [blame] | 161 | image = grContext->priv().testingOnly_getFontAtlasImage( |
Robert Phillips | 0c4b7b1 | 2018-03-06 08:20:37 -0500 | [diff] [blame] | 162 | GrMaskFormat::kA8_GrMaskFormat, 1); |
Jim Van Verth | cad0acf | 2018-02-16 18:41:41 -0500 | [diff] [blame] | 163 | canvas->drawImageRect(image, |
| 164 | SkRect::MakeXYWH(522.0f, 10.0f, 512.f, 512.0f), &paint); |
Robert Phillips | dbaf317 | 2019-02-06 15:12:53 -0500 | [diff] [blame] | 165 | image = grContext->priv().testingOnly_getFontAtlasImage( |
Robert Phillips | 0c4b7b1 | 2018-03-06 08:20:37 -0500 | [diff] [blame] | 166 | GrMaskFormat::kA8_GrMaskFormat, 2); |
Jim Van Verth | cad0acf | 2018-02-16 18:41:41 -0500 | [diff] [blame] | 167 | canvas->drawImageRect(image, |
| 168 | SkRect::MakeXYWH(10.0f, 522.0f, 512.0f, 512.0f), &paint); |
Robert Phillips | dbaf317 | 2019-02-06 15:12:53 -0500 | [diff] [blame] | 169 | image = grContext->priv().testingOnly_getFontAtlasImage( |
Robert Phillips | 0c4b7b1 | 2018-03-06 08:20:37 -0500 | [diff] [blame] | 170 | GrMaskFormat::kA8_GrMaskFormat, 3); |
Jim Van Verth | cad0acf | 2018-02-16 18:41:41 -0500 | [diff] [blame] | 171 | canvas->drawImageRect(image, |
| 172 | SkRect::MakeXYWH(522.0f, 522.0f, 512.0f, 512.0f), &paint); |
| 173 | } |
Jim Van Verth | 87d18ce | 2018-01-22 12:45:47 -0500 | [diff] [blame] | 174 | #endif |
Jim Van Verth | cad0acf | 2018-02-16 18:41:41 -0500 | [diff] [blame] | 175 | } |
Jim Van Verth | 87d18ce | 2018-01-22 12:45:47 -0500 | [diff] [blame] | 176 | |
| 177 | canvas->scale(fScale, fScale); |
Jim Van Verth | cad0acf | 2018-02-16 18:41:41 -0500 | [diff] [blame] | 178 | canvas->translate(0, fTranslate); |
| 179 | fTranslate -= 0.5f; |
Jim Van Verth | 87d18ce | 2018-01-22 12:45:47 -0500 | [diff] [blame] | 180 | |
| 181 | // draw a consistent run of the 'words' - one word per line |
| 182 | SkScalar y = 0; |
| 183 | for (int index = 0; index < kNumBlobs; ++index) { |
| 184 | y += -fMetrics.fAscent; |
| 185 | canvas->drawTextBlob(fBlobs[index], 0, y, paint); |
| 186 | |
| 187 | y += 3*(fMetrics.fDescent - fMetrics.fAscent + fMetrics.fLeading); |
| 188 | } |
| 189 | } |
| 190 | |
| 191 | private: |
| 192 | static constexpr auto kNumBlobs = 8; |
| 193 | static constexpr auto kParagraphLength = 175; |
| 194 | |
| 195 | void init() { |
| 196 | fTypeface = chinese_typeface(); |
| 197 | |
Mike Reed | 12a6d45 | 2018-12-21 22:22:31 -0500 | [diff] [blame] | 198 | SkFont font(fTypeface, 11); |
| 199 | font.getMetrics(&fMetrics); |
Jim Van Verth | 87d18ce | 2018-01-22 12:45:47 -0500 | [diff] [blame] | 200 | |
Mike Reed | 12a6d45 | 2018-12-21 22:22:31 -0500 | [diff] [blame] | 201 | SkPaint paint; |
| 202 | paint.setColor(0xDE000000); |
Jim Van Verth | 87d18ce | 2018-01-22 12:45:47 -0500 | [diff] [blame] | 203 | |
| 204 | SkUnichar glyphs[45]; |
| 205 | for (int32_t i = 0; i < kNumBlobs; ++i) { |
| 206 | SkTextBlobBuilder builder; |
| 207 | auto paragraphLength = kParagraphLength; |
| 208 | SkScalar y = 0; |
| 209 | while (paragraphLength - 45 > 0) { |
| 210 | auto currentLineLength = SkTMin(45, paragraphLength - 45); |
| 211 | this->createRandomLine(glyphs, currentLineLength); |
| 212 | |
Mike Klein | ea3f014 | 2019-03-20 11:12:10 -0500 | [diff] [blame] | 213 | ToolUtils::add_to_text_blob_w_len(&builder, |
| 214 | (const char*)glyphs, |
| 215 | currentLineLength * 4, |
Ben Wagner | 51e15a6 | 2019-05-07 15:38:46 -0400 | [diff] [blame] | 216 | SkTextEncoding::kUTF32, |
Mike Klein | ea3f014 | 2019-03-20 11:12:10 -0500 | [diff] [blame] | 217 | font, |
| 218 | 0, |
| 219 | y); |
Jim Van Verth | 87d18ce | 2018-01-22 12:45:47 -0500 | [diff] [blame] | 220 | y += fMetrics.fDescent - fMetrics.fAscent + fMetrics.fLeading; |
| 221 | paragraphLength -= 45; |
| 222 | } |
| 223 | fBlobs.emplace_back(builder.make()); |
| 224 | } |
| 225 | |
| 226 | fIndex = 0; |
| 227 | } |
| 228 | |
| 229 | // Construct a random kWordLength character 'word' drawing from the full Chinese set |
| 230 | void createRandomLine(SkUnichar glyphs[45], int lineLength) { |
| 231 | for (auto i = 0; i < lineLength; ++i) { |
| 232 | glyphs[i] = fRand.nextRangeU(0x4F00, 0x9FA0); |
| 233 | } |
| 234 | } |
| 235 | |
| 236 | bool fInitialized = false; |
| 237 | sk_sp<SkTypeface> fTypeface; |
Mike Reed | b5784ac | 2018-11-12 09:35:15 -0500 | [diff] [blame] | 238 | SkFontMetrics fMetrics; |
Jim Van Verth | 87d18ce | 2018-01-22 12:45:47 -0500 | [diff] [blame] | 239 | SkTArray<sk_sp<SkTextBlob>> fBlobs; |
| 240 | SkRandom fRand; |
| 241 | SkScalar fScale; |
Jim Van Verth | cad0acf | 2018-02-16 18:41:41 -0500 | [diff] [blame] | 242 | SkScalar fTranslate; |
Jim Van Verth | 87d18ce | 2018-01-22 12:45:47 -0500 | [diff] [blame] | 243 | int fIndex; |
| 244 | |
Ben Wagner | b2c4ea6 | 2018-08-08 11:36:17 -0400 | [diff] [blame] | 245 | typedef Sample INHERITED; |
Jim Van Verth | 87d18ce | 2018-01-22 12:45:47 -0500 | [diff] [blame] | 246 | }; |
| 247 | |
Robert Phillips | 4c72b26 | 2017-08-15 13:28:42 -0400 | [diff] [blame] | 248 | ////////////////////////////////////////////////////////////////////////////// |
| 249 | |
Ben Wagner | b2c4ea6 | 2018-08-08 11:36:17 -0400 | [diff] [blame] | 250 | DEF_SAMPLE( return new ChineseFlingView(); ) |
| 251 | DEF_SAMPLE( return new ChineseZoomView(); ) |