skia2/gm/testgradient.cpp

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/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "gm.h"
#include "SkCanvas.h"
#include "SkGradientShader.h"
#include "SkRRect.h"
class TestGradientGM : public skiagm::GM {
public:
TestGradientGM() {}
protected:
SkString onShortName() override {
return SkString("testgradient");
}
SkISize onISize() override {
return SkISize::Make(800, 800);
}
void onDraw(SkCanvas* canvas) override {
// Set up a gradient paint for a rect.
// And non-gradient paint for other objects.
canvas->drawColor(SK_ColorWHITE);
SkPaint paint;
paint.setStyle(SkPaint::kFill_Style);
paint.setAntiAlias(true);
paint.setStrokeWidth(4);
paint.setColor(0xFFFE938C);
SkRect rect = SkRect::MakeXYWH(10, 10, 100, 160);
SkPoint points[2] = {
SkPoint::Make(0.0f, 0.0f),
SkPoint::Make(256.0f, 256.0f)
};
SkColor colors[2] = {SK_ColorBLUE, SK_ColorYELLOW};
SkPaint newPaint(paint);
newPaint.setShader(SkGradientShader::MakeLinear(
points, colors, nullptr, 2,
SkShader::kClamp_TileMode, 0, nullptr));
canvas->drawRect(rect, newPaint);
SkRRect oval;
oval.setOval(rect);
oval.offset(40, 80);
paint.setColor(0xFFE6B89C);
canvas->drawRRect(oval, paint);
paint.setColor(0xFF9CAFB7);
canvas->drawCircle(180, 50, 25, paint);
rect.offset(80, 50);
paint.setColor(0xFF4281A4);
paint.setStyle(SkPaint::kStroke_Style);
canvas->drawRoundRect(rect, 10, 10, paint);
}
private:
typedef skiagm::GM INHERITED;
};
// Register the GM
DEF_GM( return new TestGradientGM; )