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 | |
Ben Wagner | b2c4ea6 | 2018-08-08 11:36:17 -0400 | [diff] [blame] | 127 | bool onQuery(Sample::Event* evt) override { |
Jim Van Verth | 87d18ce | 2018-01-22 12:45:47 -0500 | [diff] [blame] | 128 | SkUnichar uni; |
Ben Wagner | b2c4ea6 | 2018-08-08 11:36:17 -0400 | [diff] [blame] | 129 | if (Sample::CharQ(*evt, &uni)) { |
Jim Van Verth | 87d18ce | 2018-01-22 12:45:47 -0500 | [diff] [blame] | 130 | if ('>' == uni) { |
| 131 | fScale += 0.125f; |
| 132 | return true; |
| 133 | } |
| 134 | if ('<' == uni) { |
| 135 | fScale -= 0.125f; |
| 136 | return true; |
| 137 | } |
| 138 | } |
| 139 | return this->INHERITED::onQuery(evt); |
| 140 | } |
| 141 | |
| 142 | void onDrawContent(SkCanvas* canvas) override { |
Jim Van Verth | cad0acf | 2018-02-16 18:41:41 -0500 | [diff] [blame] | 143 | bool afterFirstFrame = fInitialized; |
Jim Van Verth | 87d18ce | 2018-01-22 12:45:47 -0500 | [diff] [blame] | 144 | if (!fInitialized) { |
| 145 | this->init(); |
| 146 | fInitialized = true; |
| 147 | } |
| 148 | |
| 149 | canvas->clear(0xFFDDDDDD); |
| 150 | |
| 151 | SkPaint paint; |
| 152 | paint.setAntiAlias(true); |
| 153 | paint.setColor(0xDE000000); |
Jim Van Verth | 87d18ce | 2018-01-22 12:45:47 -0500 | [diff] [blame] | 154 | |
Jim Van Verth | cad0acf | 2018-02-16 18:41:41 -0500 | [diff] [blame] | 155 | if (afterFirstFrame) { |
Jim Van Verth | 87d18ce | 2018-01-22 12:45:47 -0500 | [diff] [blame] | 156 | #if SK_SUPPORT_GPU |
Jim Van Verth | cad0acf | 2018-02-16 18:41:41 -0500 | [diff] [blame] | 157 | GrContext* grContext = canvas->getGrContext(); |
| 158 | if (grContext) { |
| 159 | sk_sp<SkImage> image = |
Robert Phillips | dbaf317 | 2019-02-06 15:12:53 -0500 | [diff] [blame] | 160 | grContext->priv().testingOnly_getFontAtlasImage( |
Robert Phillips | 0c4b7b1 | 2018-03-06 08:20:37 -0500 | [diff] [blame] | 161 | GrMaskFormat::kA8_GrMaskFormat, 0); |
Jim Van Verth | cad0acf | 2018-02-16 18:41:41 -0500 | [diff] [blame] | 162 | canvas->drawImageRect(image, |
| 163 | SkRect::MakeXYWH(10.0f, 10.0f, 512.0f, 512.0), &paint); |
Robert Phillips | dbaf317 | 2019-02-06 15:12:53 -0500 | [diff] [blame] | 164 | image = grContext->priv().testingOnly_getFontAtlasImage( |
Robert Phillips | 0c4b7b1 | 2018-03-06 08:20:37 -0500 | [diff] [blame] | 165 | GrMaskFormat::kA8_GrMaskFormat, 1); |
Jim Van Verth | cad0acf | 2018-02-16 18:41:41 -0500 | [diff] [blame] | 166 | canvas->drawImageRect(image, |
| 167 | SkRect::MakeXYWH(522.0f, 10.0f, 512.f, 512.0f), &paint); |
Robert Phillips | dbaf317 | 2019-02-06 15:12:53 -0500 | [diff] [blame] | 168 | image = grContext->priv().testingOnly_getFontAtlasImage( |
Robert Phillips | 0c4b7b1 | 2018-03-06 08:20:37 -0500 | [diff] [blame] | 169 | GrMaskFormat::kA8_GrMaskFormat, 2); |
Jim Van Verth | cad0acf | 2018-02-16 18:41:41 -0500 | [diff] [blame] | 170 | canvas->drawImageRect(image, |
| 171 | SkRect::MakeXYWH(10.0f, 522.0f, 512.0f, 512.0f), &paint); |
Robert Phillips | dbaf317 | 2019-02-06 15:12:53 -0500 | [diff] [blame] | 172 | image = grContext->priv().testingOnly_getFontAtlasImage( |
Robert Phillips | 0c4b7b1 | 2018-03-06 08:20:37 -0500 | [diff] [blame] | 173 | GrMaskFormat::kA8_GrMaskFormat, 3); |
Jim Van Verth | cad0acf | 2018-02-16 18:41:41 -0500 | [diff] [blame] | 174 | canvas->drawImageRect(image, |
| 175 | SkRect::MakeXYWH(522.0f, 522.0f, 512.0f, 512.0f), &paint); |
| 176 | } |
Jim Van Verth | 87d18ce | 2018-01-22 12:45:47 -0500 | [diff] [blame] | 177 | #endif |
Jim Van Verth | cad0acf | 2018-02-16 18:41:41 -0500 | [diff] [blame] | 178 | } |
Jim Van Verth | 87d18ce | 2018-01-22 12:45:47 -0500 | [diff] [blame] | 179 | |
| 180 | canvas->scale(fScale, fScale); |
Jim Van Verth | cad0acf | 2018-02-16 18:41:41 -0500 | [diff] [blame] | 181 | canvas->translate(0, fTranslate); |
| 182 | fTranslate -= 0.5f; |
Jim Van Verth | 87d18ce | 2018-01-22 12:45:47 -0500 | [diff] [blame] | 183 | |
| 184 | // draw a consistent run of the 'words' - one word per line |
| 185 | SkScalar y = 0; |
| 186 | for (int index = 0; index < kNumBlobs; ++index) { |
| 187 | y += -fMetrics.fAscent; |
| 188 | canvas->drawTextBlob(fBlobs[index], 0, y, paint); |
| 189 | |
| 190 | y += 3*(fMetrics.fDescent - fMetrics.fAscent + fMetrics.fLeading); |
| 191 | } |
| 192 | } |
| 193 | |
| 194 | private: |
| 195 | static constexpr auto kNumBlobs = 8; |
| 196 | static constexpr auto kParagraphLength = 175; |
| 197 | |
| 198 | void init() { |
| 199 | fTypeface = chinese_typeface(); |
| 200 | |
Mike Reed | 12a6d45 | 2018-12-21 22:22:31 -0500 | [diff] [blame] | 201 | SkFont font(fTypeface, 11); |
| 202 | font.getMetrics(&fMetrics); |
Jim Van Verth | 87d18ce | 2018-01-22 12:45:47 -0500 | [diff] [blame] | 203 | |
Mike Reed | 12a6d45 | 2018-12-21 22:22:31 -0500 | [diff] [blame] | 204 | SkPaint paint; |
| 205 | paint.setColor(0xDE000000); |
Jim Van Verth | 87d18ce | 2018-01-22 12:45:47 -0500 | [diff] [blame] | 206 | |
| 207 | SkUnichar glyphs[45]; |
| 208 | for (int32_t i = 0; i < kNumBlobs; ++i) { |
| 209 | SkTextBlobBuilder builder; |
| 210 | auto paragraphLength = kParagraphLength; |
| 211 | SkScalar y = 0; |
| 212 | while (paragraphLength - 45 > 0) { |
| 213 | auto currentLineLength = SkTMin(45, paragraphLength - 45); |
| 214 | this->createRandomLine(glyphs, currentLineLength); |
| 215 | |
Mike Klein | ea3f014 | 2019-03-20 11:12:10 -0500 | [diff] [blame] | 216 | ToolUtils::add_to_text_blob_w_len(&builder, |
| 217 | (const char*)glyphs, |
| 218 | currentLineLength * 4, |
Ben Wagner | 51e15a6 | 2019-05-07 15:38:46 -0400 | [diff] [blame] | 219 | SkTextEncoding::kUTF32, |
Mike Klein | ea3f014 | 2019-03-20 11:12:10 -0500 | [diff] [blame] | 220 | font, |
| 221 | 0, |
| 222 | y); |
Jim Van Verth | 87d18ce | 2018-01-22 12:45:47 -0500 | [diff] [blame] | 223 | y += fMetrics.fDescent - fMetrics.fAscent + fMetrics.fLeading; |
| 224 | paragraphLength -= 45; |
| 225 | } |
| 226 | fBlobs.emplace_back(builder.make()); |
| 227 | } |
| 228 | |
| 229 | fIndex = 0; |
| 230 | } |
| 231 | |
| 232 | // Construct a random kWordLength character 'word' drawing from the full Chinese set |
| 233 | void createRandomLine(SkUnichar glyphs[45], int lineLength) { |
| 234 | for (auto i = 0; i < lineLength; ++i) { |
| 235 | glyphs[i] = fRand.nextRangeU(0x4F00, 0x9FA0); |
| 236 | } |
| 237 | } |
| 238 | |
| 239 | bool fInitialized = false; |
| 240 | sk_sp<SkTypeface> fTypeface; |
Mike Reed | b5784ac | 2018-11-12 09:35:15 -0500 | [diff] [blame] | 241 | SkFontMetrics fMetrics; |
Jim Van Verth | 87d18ce | 2018-01-22 12:45:47 -0500 | [diff] [blame] | 242 | SkTArray<sk_sp<SkTextBlob>> fBlobs; |
| 243 | SkRandom fRand; |
| 244 | SkScalar fScale; |
Jim Van Verth | cad0acf | 2018-02-16 18:41:41 -0500 | [diff] [blame] | 245 | SkScalar fTranslate; |
Jim Van Verth | 87d18ce | 2018-01-22 12:45:47 -0500 | [diff] [blame] | 246 | int fIndex; |
| 247 | |
Ben Wagner | b2c4ea6 | 2018-08-08 11:36:17 -0400 | [diff] [blame] | 248 | typedef Sample INHERITED; |
Jim Van Verth | 87d18ce | 2018-01-22 12:45:47 -0500 | [diff] [blame] | 249 | }; |
| 250 | |
Robert Phillips | 4c72b26 | 2017-08-15 13:28:42 -0400 | [diff] [blame] | 251 | ////////////////////////////////////////////////////////////////////////////// |
| 252 | |
Ben Wagner | b2c4ea6 | 2018-08-08 11:36:17 -0400 | [diff] [blame] | 253 | DEF_SAMPLE( return new ChineseFlingView(); ) |
| 254 | DEF_SAMPLE( return new ChineseZoomView(); ) |