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 REG_FIDDLE(Src_Atop, 256, 256, false, 0) {
draw(SkCanvas * canvas)5 void draw(SkCanvas* canvas) {
6 SkColor colors[] = { SK_ColorRED, SK_ColorBLUE };
7 SkPoint horz[] = { { 0, 0 }, { 256, 0 } };
8 SkPaint paint;
9 paint.setShader(SkGradientShader::MakeLinear(horz, colors, nullptr, std::size(colors),
10 SkTileMode::kClamp));
11 canvas->drawPaint(paint);
12 paint.setBlendMode(SkBlendMode::kDstIn);
13 SkColor alphas[] = { SK_ColorBLACK, SK_ColorTRANSPARENT };
14 SkPoint vert[] = { { 0, 0 }, { 0, 256 } };
15 paint.setShader(SkGradientShader::MakeLinear(vert, alphas, nullptr, std::size(alphas),
16 SkTileMode::kClamp));
17 canvas->drawPaint(paint);
18 canvas->clipRect( { 30, 30, 226, 226 } );
19 canvas->drawColor(SkColorSetA(SK_ColorGREEN, 128), SkBlendMode::kSrcATop);
20 }
21 } // END FIDDLE
22