| /* |
| * Copyright 2014 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "gm/gm.h" |
| #include "include/core/SkBitmap.h" |
| #include "include/core/SkBlendMode.h" |
| #include "include/core/SkCanvas.h" |
| #include "include/core/SkColor.h" |
| #include "include/core/SkFont.h" |
| #include "include/core/SkFontStyle.h" |
| #include "include/core/SkFontTypes.h" |
| #include "include/core/SkImageInfo.h" |
| #include "include/core/SkMatrix.h" |
| #include "include/core/SkPaint.h" |
| #include "include/core/SkRect.h" |
| #include "include/core/SkRefCnt.h" |
| #include "include/core/SkScalar.h" |
| #include "include/core/SkShader.h" |
| #include "include/core/SkSize.h" |
| #include "include/core/SkString.h" |
| #include "include/core/SkTileMode.h" |
| #include "include/core/SkTypeface.h" |
| #include "include/core/SkTypes.h" |
| #include "include/effects/SkGradientShader.h" |
| #include "include/utils/SkTextUtils.h" |
| #include "src/utils/SkUTF.h" |
| #include "tools/ToolUtils.h" |
| |
| #include <string.h> |
| |
| namespace { |
| |
| static uint16_t gData[] = { 0xFFFF, 0xCCCF, 0xCCCF, 0xFFFF }; |
| |
| class ColorEmojiBlendModesGM : public skiagm::GM { |
| public: |
| const static int W = 64; |
| const static int H = 64; |
| ColorEmojiBlendModesGM() {} |
| |
| protected: |
| void onOnceBeforeDraw() override { |
| const SkColor colors[] = { |
| SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, |
| SK_ColorMAGENTA, SK_ColorCYAN, SK_ColorYELLOW |
| }; |
| SkMatrix local; |
| local.setRotate(180); |
| SkPaint paint; |
| paint.setAntiAlias(true); |
| paint.setShader(SkGradientShader::MakeSweep(0, 0, colors, nullptr, std::size(colors), |
| 0, &local)); |
| |
| sk_sp<SkTypeface> orig(ToolUtils::create_portable_typeface("serif", SkFontStyle::Bold())); |
| if (nullptr == orig) { |
| orig = SkTypeface::MakeDefault(); |
| } |
| fColorType = ToolUtils::emoji_typeface(); |
| |
| fBG.installPixels(SkImageInfo::Make(2, 2, kARGB_4444_SkColorType, |
| kOpaque_SkAlphaType), gData, 4); |
| } |
| |
| SkString onShortName() override { |
| return SkString("coloremoji_blendmodes"); |
| } |
| |
| SkISize onISize() override { |
| return {400, 640}; |
| } |
| |
| void onDraw(SkCanvas* canvas) override { |
| canvas->translate(SkIntToScalar(10), SkIntToScalar(20)); |
| |
| const SkBlendMode gModes[] = { |
| SkBlendMode::kClear, |
| SkBlendMode::kSrc, |
| SkBlendMode::kDst, |
| SkBlendMode::kSrcOver, |
| SkBlendMode::kDstOver, |
| SkBlendMode::kSrcIn, |
| SkBlendMode::kDstIn, |
| SkBlendMode::kSrcOut, |
| SkBlendMode::kDstOut, |
| SkBlendMode::kSrcATop, |
| SkBlendMode::kDstATop, |
| |
| SkBlendMode::kXor, |
| SkBlendMode::kPlus, |
| SkBlendMode::kModulate, |
| SkBlendMode::kScreen, |
| SkBlendMode::kOverlay, |
| SkBlendMode::kDarken, |
| SkBlendMode::kLighten, |
| SkBlendMode::kColorDodge, |
| SkBlendMode::kColorBurn, |
| SkBlendMode::kHardLight, |
| SkBlendMode::kSoftLight, |
| SkBlendMode::kDifference, |
| SkBlendMode::kExclusion, |
| SkBlendMode::kMultiply, |
| SkBlendMode::kHue, |
| SkBlendMode::kSaturation, |
| SkBlendMode::kColor, |
| SkBlendMode::kLuminosity, |
| }; |
| |
| const SkScalar w = SkIntToScalar(W); |
| const SkScalar h = SkIntToScalar(H); |
| SkMatrix m; |
| m.setScale(SkIntToScalar(6), SkIntToScalar(6)); |
| auto s = fBG.makeShader(SkTileMode::kRepeat, SkTileMode::kRepeat, SkSamplingOptions(), m); |
| |
| SkFont labelFont(ToolUtils::create_portable_typeface()); |
| |
| SkPaint textP; |
| textP.setAntiAlias(true); |
| SkFont textFont(fColorType, 70); |
| |
| const int kWrap = 5; |
| |
| SkScalar x0 = 0; |
| SkScalar y0 = 0; |
| SkScalar x = x0, y = y0; |
| for (size_t i = 0; i < std::size(gModes); i++) { |
| SkRect r; |
| r.setLTRB(x, y, x+w, y+h); |
| |
| SkPaint p; |
| p.setStyle(SkPaint::kFill_Style); |
| p.setShader(s); |
| canvas->drawRect(r, p); |
| |
| r.inset(-SK_ScalarHalf, -SK_ScalarHalf); |
| p.setStyle(SkPaint::kStroke_Style); |
| p.setShader(nullptr); |
| canvas->drawRect(r, p); |
| |
| { |
| SkAutoCanvasRestore arc(canvas, true); |
| canvas->clipRect(r); |
| textP.setBlendMode(gModes[i]); |
| const char* text = ToolUtils::emoji_sample_text(); |
| SkUnichar unichar = SkUTF::NextUTF8(&text, text + strlen(text)); |
| SkASSERT(unichar >= 0); |
| canvas->drawSimpleText(&unichar, 4, SkTextEncoding::kUTF32, |
| x+ w/10.f, y + 7.f*h/8.f, textFont, textP); |
| } |
| #if 1 |
| const char* label = SkBlendMode_Name(gModes[i]); |
| SkTextUtils::DrawString(canvas, label, x + w/2, y - labelFont.getSize()/2, |
| labelFont, SkPaint(), SkTextUtils::kCenter_Align); |
| #endif |
| x += w + SkIntToScalar(10); |
| if ((i % kWrap) == kWrap - 1) { |
| x = x0; |
| y += h + SkIntToScalar(30); |
| } |
| } |
| } |
| |
| private: |
| SkBitmap fBG; |
| sk_sp<SkTypeface> fColorType; |
| |
| using INHERITED = GM; |
| }; |
| } // namespace |
| |
| DEF_GM( return new ColorEmojiBlendModesGM; ) |