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/*
* Copyright 2016 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 "SkCanvas.h"
#include "SkPath.h"
#include "SkRandom.h"
class MegaStrokeView : public SampleView {
public:
MegaStrokeView() {
fClip.set(0, 0, 950, 600);
fAngle = 0;
fPlusMinus = 0;
SkRandom rand;
fMegaPath.reset();
for (int index = 0; index < 921; ++index) {
for (int segs = 0; segs < 40; ++segs) {
fMegaPath.lineTo(SkIntToScalar(index), SkIntToScalar(rand.nextRangeU(500, 600)));
}
}
}
protected:
// overrides from SkEventSink
bool onQuery(SkEvent* evt) override {
if (SampleCode::TitleQ(*evt)) {
SampleCode::TitleR(evt, "MegaStroke");
return true;
}
SkUnichar uni;
if (SampleCode::CharQ(*evt, &uni)) {
fClip.set(0, 0, 950, 600);
}
if (evt->isType("SampleCode_Key_Event")) {
fClip.set(0, 0, 950, 600);
}
return this->INHERITED::onQuery(evt);
}
void onDrawBackground(SkCanvas* canvas) override {
}
void onDrawContent(SkCanvas* canvas) override {
SkPaint paint;
paint.setAntiAlias(true);
paint.setARGB(255,255,153,0);
paint.setStyle(SkPaint::kStroke_Style);
paint.setStrokeWidth(1);
canvas->save();
canvas->clipRect(fClip);
canvas->clear(SK_ColorWHITE);
canvas->drawPath(fMegaPath, paint);
canvas->restore();
SkPaint divSimPaint;
divSimPaint.setColor(SK_ColorBLUE);
SkScalar x = SkScalarSin(fAngle * SK_ScalarPI / 180) * 200 + 250;
SkScalar y = SkScalarCos(fAngle * SK_ScalarPI / 180) * 200 + 250;
if ((fPlusMinus ^= 1)) {
fAngle += 5;
} else {
fAngle -= 5;
}
SkRect divSim = SkRect::MakeXYWH(x, y, 100, 100);
divSim.outset(30, 30);
canvas->drawRect(divSim, divSimPaint);
fClip = divSim;
}
void onSizeChange() override {
fClip.set(0, 0, 950, 600);
}
bool onAnimate(const SkAnimTimer& ) override {
return true;
}
private:
SkPath fMegaPath;
SkRect fClip;
int fAngle;
int fPlusMinus;
typedef SampleView INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
static SkView* MyFactory() { return new MegaStrokeView; }
static SkViewRegister reg(MyFactory);
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