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SampleClock.cpp
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SampleClock.cpp
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/*
* Copyright 2013 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"
#include "SkRRect.h"
#include "SkTime.h"
// Implementation in C++ of Mozilla Canvas2D benchmark Canvas Clock Test
// See https://code.google.com/p/skia/issues/detail?id=1626
#define USE_PATH 1
class ClockView : public SampleView {
public:
ClockView() {}
protected:
// overrides from SkEventSink
bool onQuery(SkEvent* evt) override {
if (SampleCode::TitleQ(*evt)) {
SampleCode::TitleR(evt, "Clock");
return true;
}
return this->INHERITED::onQuery(evt);
}
void onDrawContent(SkCanvas* canvas) override {
SkPaint paintFill;
SkPaint paintStroke;
SkPath path;
canvas->save();
canvas->translate(150, 150);
canvas->scale(0.4f, 0.4f);
canvas->rotate(-180.f/2.f);
paintFill.setAntiAlias(true);
paintFill.setColor(SK_ColorBLACK);
paintStroke.setAntiAlias(true);
paintStroke.setStyle(SkPaint::kStroke_Style);
paintStroke.setColor(SK_ColorBLACK);
paintStroke.setStrokeWidth(8);
paintStroke.setStrokeCap(SkPaint::kRound_Cap);
// Hour marks
SkRect rect;
#ifndef USE_PATH
rect = SkRect::MakeLTRB(200-4, -4, 240+4, 4);
SkRRect rrect;
SkVector radii[4] = {{4,4}, {4,4}, {4,4}, {4,4}};
rrect.setRectRadii(rect, radii);
#endif
canvas->save();
for (int i=0;i<12;i++){
canvas->rotate(180.f/6.f);
#ifdef USE_PATH
path.reset();
path.moveTo(200,0);
path.lineTo(240,0);
canvas->drawPath(path, paintStroke);
#else
canvas->drawRRect(rrect, paintFill);
#endif
}
canvas->restore();
// Minute marks
canvas->save();
#ifdef USE_PATH
paintStroke.setStrokeWidth(5);
#else
rect = SkRect::MakeLTRB(231.5f, -2.5f, 242.5, 2.5f);
radii[0] = SkPoint::Make(2.5f,2.5f);
radii[1] = SkPoint::Make(2.5f,2.5f);
radii[2] = SkPoint::Make(2.5f,2.5f);
radii[3] = SkPoint::Make(2.5f,2.5f);
rrect.setRectRadii(rect, radii);
#endif
for (int i=0;i<60;i++){
if (i%5 == 0) {
canvas->rotate(180.f/30.f);
continue;
}
#ifdef USE_PATH
path.reset();
path.moveTo(234,0);
path.lineTo(240,0);
canvas->drawPath(path, paintStroke);
#else
canvas->drawRRect(rrect, paintFill);
#endif
canvas->rotate(180.f/30.f);
}
canvas->restore();
SkTime::DateTime time;
SkTime::GetDateTime(&time);
time.fHour = time.fHour >= 12 ? time.fHour-12 : time.fHour;
paintFill.setColor(SK_ColorBLACK);
// Write hours
canvas->save();
canvas->rotate(time.fHour*(180.f/6.f) + time.fMinute*(180.f/360.f)
+ time.fSecond*(180.f/21600.f) );
#ifdef USE_PATH
paintStroke.setStrokeWidth(14);
path.reset();
path.moveTo(-20,0);
path.lineTo(80,0);
canvas->drawPath(path, paintStroke);
#else
rect = SkRect::MakeLTRB(-20-7, -7, 80+7, 7);
radii[0] = SkPoint::Make(7,7);
radii[1] = SkPoint::Make(7,7);
radii[2] = SkPoint::Make(7,7);
radii[3] = SkPoint::Make(7,7);
rrect.setRectRadii(rect, radii);
canvas->drawRRect(rrect, paintFill);
#endif
canvas->restore();
// Write minutes
canvas->save();
canvas->rotate(time.fMinute*(180.f/30.f)
+ time.fSecond*(180.f/1800.f) );
#ifdef USE_PATH
paintStroke.setStrokeWidth(10);
path.reset();
path.moveTo(-56,0);
path.lineTo(224,0);
canvas->drawPath(path, paintStroke);
#else
rect = SkRect::MakeLTRB(-56-5, -5, 224+5, 5);
radii[0] = SkPoint::Make(5,5);
radii[1] = SkPoint::Make(5,5);
radii[2] = SkPoint::Make(5,5);
radii[3] = SkPoint::Make(5,5);
rrect.setRectRadii(rect, radii);
canvas->drawRRect(rrect, paintFill);
#endif
canvas->restore();
// Write seconds
canvas->save();
canvas->rotate(time.fSecond*(180.f/30.f));
paintFill.setColor(0xffd40000);
paintStroke.setColor(0xffd40000);
paintStroke.setStrokeWidth(6);
#ifdef USE_PATH
path.reset();
path.moveTo(-60,0);
path.lineTo(166,0);
canvas->drawPath(path, paintStroke);
#else
rect = SkRect::MakeLTRB(-60-3, -3, 166+3, 3);
radii[0] = SkPoint::Make(3,3);
radii[1] = SkPoint::Make(3,3);
radii[2] = SkPoint::Make(3,3);
radii[3] = SkPoint::Make(3,3);
rrect.setRectRadii(rect, radii);
canvas->drawRRect(rrect, paintFill);
#endif
rect = SkRect::MakeLTRB(-20, -20, 20, 20);
#ifdef USE_PATH
path.reset();
path.arcTo(rect, 0, 0, false);
path.addOval(rect, SkPath::kCCW_Direction);
path.arcTo(rect, 360, 0, true);
canvas->drawPath(path, paintFill);
#else
canvas->drawOval(rect, paintFill);
#endif
rect = SkRect::MakeLTRB(-20+190, -20, 20+190, 20);
#ifdef USE_PATH
path.reset();
path.arcTo(rect, 0, 0, false);
path.addOval(rect, SkPath::kCCW_Direction);
path.arcTo(rect, 360, 0, true);
canvas->drawPath(path, paintStroke);
#else
canvas->drawOval(rect, paintStroke);
#endif
paintFill.setColor(0xff505050);
#ifdef USE_PATH
rect = SkRect::MakeLTRB(-6, -6, 6, 6);
path.arcTo(rect, 0, 0, false);
path.addOval(rect, SkPath::kCCW_Direction);
path.arcTo(rect, 360, 0, true);
canvas->drawPath(path, paintFill);
#else
canvas->drawOval(rect, paintFill);
rect = SkRect::MakeLTRB(-6, -6, 6, 6);
canvas->drawOval(rect, paintFill);
#endif
canvas->restore();
paintStroke.setStrokeWidth(18);
paintStroke.setColor(0xff325FA2);
rect = SkRect::MakeLTRB(-284, -284, 284, 284);
#ifdef USE_PATH
path.reset();
path.arcTo(rect, 0, 0, false);
path.addOval(rect, SkPath::kCCW_Direction);
path.arcTo(rect, 360, 0, true);
canvas->drawPath(path, paintStroke);
#else
canvas->drawOval(rect, paintStroke);
#endif
canvas->restore();
}
bool onAnimate(const SkAnimTimer&) override {
return true;
}
private:
typedef SampleView INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
static SkView* MyFactory() { return new ClockView; }
static SkViewRegister reg(MyFactory);