1// Copyright 2019 Google LLC. 2// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file. 3#include "tools/fiddle/examples.h" 4// HASH=1955856d45773a4fd914fcc1f813222f 5REG_FIDDLE(Dst_Atop, 256, 256, false, 0) { 6void draw(SkCanvas* canvas) { 7 SkColor colors[] = { SK_ColorRED, SK_ColorBLUE }; 8 SkPoint horz[] = { { 0, 0 }, { 256, 0 } }; 9 SkPaint paint; 10 paint.setShader(SkGradientShader::MakeLinear(horz, colors, nullptr, SK_ARRAY_COUNT(colors), 11 SkTileMode::kClamp)); 12 canvas->drawPaint(paint); 13 paint.setBlendMode(SkBlendMode::kDstATop); 14 SkColor alphas[] = { SK_ColorBLACK, SK_ColorTRANSPARENT }; 15 SkPoint vert[] = { { 0, 0 }, { 0, 256 } }; 16 paint.setShader(SkGradientShader::MakeLinear(vert, alphas, nullptr, SK_ARRAY_COUNT(alphas), 17 SkTileMode::kClamp)); 18 canvas->drawPaint(paint); 19 canvas->clipRect( { 30, 30, 226, 226 } ); 20 canvas->drawColor(SkColorSetA(SK_ColorGREEN, 128), SkBlendMode::kSrcATop); 21} 22} // END FIDDLE 23