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=52d2c8d1b9b428de4477b4caa1543a3d
5 REG_FIDDLE(Difference, 256, 256, false, 5) {
draw(SkCanvas * canvas)6 void draw(SkCanvas* canvas) {
7     canvas->drawImage(image, 0, 0);
8     canvas->drawImage(image, 128, 0);
9     canvas->drawImage(image, 0, 128);
10     canvas->drawImage(image, 128, 128);
11     SkPaint paint;
12     paint.setBlendMode(SkBlendMode::kDstATop);
13     SkColor alphas[] = { SK_ColorBLACK, SK_ColorTRANSPARENT };
14     SkPoint vert[] = { { 0, 0 }, { 0, 256 } };
15     paint.setShader(SkGradientShader::MakeLinear(vert, alphas, nullptr, SK_ARRAY_COUNT(alphas),
16             SkTileMode::kClamp));
17     canvas->drawPaint(paint);
18     canvas->clipRect( { 30, 30, 226, 226 } );
19     canvas->drawColor(0x80bb9977, SkBlendMode::kDifference);
20 }
21 }  // END FIDDLE
22