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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 "gm.h"
#include "sk_tool_utils.h"
#include "SkRandom.h"
namespace skiagm {
// This GM draws a lot of arcs in a 'Z' shape. It particularly exercises
// the 'drawArc' code near a singularly of its processing (i.e., near the
// edge of one of its underlying quads).
class ArcOfZorroGM : public GM {
public:
ArcOfZorroGM() {
this->setBGColor(sk_tool_utils::color_to_565(0xFFCCCCCC));
}
protected:
SkString onShortName() override {
return SkString("arcofzorro");
}
SkISize onISize() override {
return SkISize::Make(1000, 1000);
}
void onDraw(SkCanvas* canvas) override {
SkRandom rand;
SkRect rect = SkRect::MakeXYWH(10, 10, 200, 200);
SkPaint p;
p.setStyle(SkPaint::kStroke_Style);
p.setStrokeWidth(35);
int xOffset = 0, yOffset = 0;
int direction = 0;
for (float arc = 134.0f; arc < 136.0f; arc += 0.01f) {
SkColor color = rand.nextU();
color |= 0xff000000;
p.setColor(color);
canvas->save();
canvas->translate(SkIntToScalar(xOffset), SkIntToScalar(yOffset));
canvas->drawArc(rect, 0, arc, false, p);
canvas->restore();
switch (direction) {
case 0:
xOffset += 10;
if (xOffset >= 700) {
direction = 1;
}
break;
case 1:
xOffset -= 10;
yOffset += 10;
if (xOffset < 50) {
direction = 2;
}
break;
case 2:
xOffset += 10;
break;
}
}
}
private:
typedef GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
DEF_GM(return new ArcOfZorroGM;)
}
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