96fcdcc219
DOCS_PREVIEW= https://skia.org/?cl=1316233002 Review URL: https://codereview.chromium.org/1316233002
64 lines
1.4 KiB
C++
64 lines
1.4 KiB
C++
/*
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* Copyright 2013 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "gm.h"
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#include "SkCanvas.h"
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#include "SkLerpXfermode.h"
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static void show_circlelayers(SkCanvas* canvas, SkXfermode* mode) {
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SkPaint paint;
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paint.setAntiAlias(true);
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SkRect r, bounds = { 10, 10, 110, 110 };
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r = bounds;
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r.fRight = bounds.centerX();
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canvas->drawRect(r, paint);
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canvas->saveLayer(&bounds, nullptr);
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paint.setColor(0x80FF0000);
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r = bounds;
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r.inset(20, 0);
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canvas->drawOval(r, paint);
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paint.setColor(0x800000FF);
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r = bounds;
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r.inset(0, 20);
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paint.setXfermode(mode);
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canvas->drawOval(r, paint);
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canvas->restore();
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}
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class LerpXfermodeGM : public skiagm::GM {
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public:
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LerpXfermodeGM() {}
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protected:
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SkString onShortName() override {
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return SkString("lerpmode");
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}
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SkISize onISize() override {
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return SkISize::Make(240, 120);
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}
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void onDraw(SkCanvas* canvas) override {
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show_circlelayers(canvas, nullptr);
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canvas->translate(150, 0);
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SkAutoTUnref<SkXfermode> mode(SkLerpXfermode::Create(0.5f));
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show_circlelayers(canvas, mode.get());
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}
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private:
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typedef skiagm::GM INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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DEF_GM(return new LerpXfermodeGM;)
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