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/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SampleCode.h"
#include "SkView.h"
#include "SkCanvas.h"
class SpiralView : public SampleView {
public:
SpiralView() {
this->setBGColor(0xFFDDDDDD);
}
protected:
// overrides from SkEventSink
virtual bool onQuery(SkEvent* evt) {
if (SampleCode::TitleQ(*evt)) {
SampleCode::TitleR(evt, "Spiral");
return true;
}
return this->INHERITED::onQuery(evt);
}
virtual void onDrawContent(SkCanvas* canvas) {
SkPaint paint;
paint.setAntiAlias(true);
paint.setStyle(SkPaint::kStroke_Style);
paint.setStrokeWidth(SkScalarHalf(SkIntToScalar(3)));
paint.setStyle(SkPaint::kFill_Style);
SkRect r;
SkScalar l,t,x,y;
l = SampleCode::GetAnimScalar(SkIntToScalar(10),
SkIntToScalar(400));
t = SampleCode::GetAnimScalar(SkIntToScalar(5),
SkIntToScalar(200));
canvas->translate(320,240);
for (int i = 0; i < 35; i++) {
paint.setColor(0xFFF00FF0 - i * 0x04000000);
SkScalar step = SK_ScalarPI / (55 - i);
SkScalar angle = t * step;
x = (20 + SkIntToScalar(i) * 5) * SkScalarSinCos(angle, &y);
y *= (20 + SkIntToScalar(i) * 5);
r.set(x, y, x + SkIntToScalar(10), y + SkIntToScalar(10));
canvas->drawRect(r, paint);
}
this->inval(NULL);
}
private:
typedef SampleView INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
static SkView* MyFactory() { return new SpiralView; }
static SkViewRegister reg(MyFactory);
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