aosp12/external/skia/docs/examples/draw_patch.cpp

23 lines
1.1 KiB
C++

// Copyright 2020 Google LLC.
// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
#include "tools/fiddle/examples.h"
REG_FIDDLE(draw_patch, 350, 350, false, 6) {
// draw_patch
void draw(SkCanvas* canvas) {
canvas->clear(SK_ColorWHITE);
SkPaint p;
p.setAntiAlias(true);
const SkColor colors[] = {SK_ColorRED, SK_ColorCYAN, SK_ColorGREEN, SK_ColorWHITE,
SK_ColorMAGENTA, SK_ColorBLUE, SK_ColorYELLOW};
const SkPoint pts[] = {{100.f / 4.f, 0.f}, {3.f * 100.f / 4.f, 100.f}};
p.setShader(SkGradientShader::MakeLinear(pts, colors, nullptr, SK_ARRAY_COUNT(colors),
SkTileMode::kMirror));
const SkPoint cubics[] = {{100, 100}, {150, 50}, {250, 150}, {300, 100},
{250, 150}, {350, 250}, {300, 300}, {250, 250},
{150, 350}, {100, 300}, {50, 250}, {150, 150}};
const SkPoint texCoords[] = {
{0.0f, 0.0f}, {100.0f, 0.0f}, {100.0f, 100.0f}, {0.0f, 100.0f}};
canvas->drawPatch(cubics, nullptr, texCoords, SkBlendMode::kSrcOver, p);
}
} // END FIDDLE