зеркало из https://github.com/mozilla/moz-skia.git
71 строка
2.3 KiB
C++
71 строка
2.3 KiB
C++
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/*
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* Copyright 2012 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 "SampleCode.h"
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#include "SkBlurMaskFilter.h"
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#include "SkColorPriv.h"
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#include "SkCanvas.h"
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#include "SkRandom.h"
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class AnimBlurView : public SampleView {
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public:
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AnimBlurView() {
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}
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protected:
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// overrides from SkEventSink
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virtual bool onQuery(SkEvent* evt) {
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if (SampleCode::TitleQ(*evt)) {
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SampleCode::TitleR(evt, "AnimBlur");
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return true;
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}
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return this->INHERITED::onQuery(evt);
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}
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virtual void onDrawContent(SkCanvas* canvas) {
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SkScalar blurSigma = SampleCode::GetAnimSinScalar(100 * SK_Scalar1,
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4 * SK_Scalar1,
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5 * SK_Scalar1);
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SkScalar circleRadius = 3 * SK_Scalar1 +
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SampleCode::GetAnimSinScalar(150 * SK_Scalar1,
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25 * SK_Scalar1,
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3 * SK_Scalar1);
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static const SkBlurMaskFilter::BlurStyle gStyles[] = {
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SkBlurMaskFilter::kNormal_BlurStyle,
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SkBlurMaskFilter::kInner_BlurStyle,
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SkBlurMaskFilter::kSolid_BlurStyle,
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SkBlurMaskFilter::kOuter_BlurStyle,
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};
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SkRandom random;
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for (size_t i = 0; i < SK_ARRAY_COUNT(gStyles); ++i) {
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SkMaskFilter* mf = SkBlurMaskFilter::Create(
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gStyles[i],
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blurSigma,
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SkBlurMaskFilter::kHighQuality_BlurFlag);
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SkPaint paint;
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SkSafeUnref(paint.setMaskFilter(mf));
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paint.setColor(random.nextU() | 0xff000000);
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canvas->drawCircle(200 * SK_Scalar1 + 400 * (i % 2) * SK_Scalar1,
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200 * SK_Scalar1 + i / 2 * 400 * SK_Scalar1,
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circleRadius, paint);
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}
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this->inval(NULL);
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}
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private:
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typedef SkView INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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static SkView* MyFactory() { return new AnimBlurView; }
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static SkViewRegister reg(MyFactory);
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