80ea19ca4b
Reason for revert: android patched, blink has rolled Original issue's description: > Revert of stop calling SkScalarDiv (patchset #4 id:60001 of https://codereview.chromium.org/1135053002/) > > Reason for revert: > need to wait for Blink roll (and patch android) > > Original issue's description: > > stop calling SkScalarDiv > > > > BUG=skia: > > TBR= > > > > Committed: https://skia.googlesource.com/skia/+/67d71c898249a7af3523b16c6a69895a63bfae0a > > TBR= > NOPRESUBMIT=true > NOTREECHECKS=true > NOTRY=true > BUG=skia: > > Committed: https://skia.googlesource.com/skia/+/2629697933b5cc975e45d2a45c48f803fc6cbcec TBR= NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true BUG=skia: Review URL: https://codereview.chromium.org/1135693003
73 lines
2.1 KiB
C++
73 lines
2.1 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 "SampleCode.h"
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#include "SkCanvas.h"
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// Reproduces https://code.google.com/p/chromium/issues/detail?id=279014
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// Renders a string art shape.
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// The particular shape rendered can be controlled by clicking horizontally, thereby
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// generating an angle from 0 to 1.
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class StringArtView : public SampleView {
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public:
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StringArtView() : fAngle(0.305f) {}
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protected:
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// overrides from SkEventSink
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bool onQuery(SkEvent* evt) override {
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if (SampleCode::TitleQ(*evt)) {
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SampleCode::TitleR(evt, "StringArt");
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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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void onDrawContent(SkCanvas* canvas) override {
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SkScalar angle = fAngle*SK_ScalarPI + SkScalarHalf(SK_ScalarPI);
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SkPoint center = SkPoint::Make(SkScalarHalf(this->width()), SkScalarHalf(this->height()));
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SkScalar length = 5;
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SkScalar step = angle;
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SkPath path;
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path.moveTo(center);
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while (length < (SkScalarHalf(SkMinScalar(this->width(), this->height())) - 10.f))
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{
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SkPoint rp = SkPoint::Make(length*SkScalarCos(step) + center.fX,
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length*SkScalarSin(step) + center.fY);
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path.lineTo(rp);
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length += angle / SkScalarHalf(SK_ScalarPI);
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step += angle;
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}
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path.close();
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SkPaint paint;
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paint.setAntiAlias(true);
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paint.setStyle(SkPaint::kStroke_Style);
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paint.setColor(0xFF007700);
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canvas->drawPath(path, paint);
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}
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SkView::Click* onFindClickHandler(SkScalar x, SkScalar y, unsigned) override {
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fAngle = x/width();
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this->inval(NULL);
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return NULL;
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}
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private:
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SkScalar fAngle;
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typedef SampleView INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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static SkView* MyFactory() { return new StringArtView; }
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static SkViewRegister reg(MyFactory);
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