blob: 0c91e7bb03c277c82d16f58bcc6d9dc1e992ef79 [file] [log] [blame]
/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "gm/gm.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkPaint.h"
#include "include/core/SkPathBuilder.h"
#include "include/core/SkRect.h"
#include "include/core/SkScalar.h"
#include "include/core/SkSize.h"
#include "include/core/SkString.h"
class ScaledStrokesGM : public skiagm::GM {
public:
ScaledStrokesGM() {}
protected:
SkString getName() const override { return SkString("scaledstrokes"); }
SkISize getISize() override { return SkISize::Make(640, 320); }
static void draw_path(SkScalar size, SkCanvas* canvas, SkPaint paint) {
SkScalar c = 0.551915024494f * size;
SkPathBuilder path;
path.moveTo(0.0f, size);
path.cubicTo(c, size, size, c, size, 0.0f);
path.cubicTo(size, -c, c, -size, 0.0f, -size);
path.cubicTo(-c, -size, -size, -c, -size, 0.0f);
path.cubicTo(-size, c, -c, size, 0.0f, size);
canvas->drawPath(path.detach(), paint);
}
void onDraw(SkCanvas* canvas) override {
SkPaint paint;
SkPath path;
paint.setStyle(SkPaint::Style::kStroke_Style);
canvas->translate(5.0f, 5.0f);
const SkScalar size = 60.0f;
for (int i = 0; i < 2; i++) {
paint.setAntiAlias(i == 1);
for (int j = 0; j < 4; j++) {
SkScalar scale = 4.0f - j;
paint.setStrokeWidth(4.0f / scale);
canvas->save();
canvas->translate(size / 2.0f, size / 2.0f);
canvas->scale(scale, scale);
draw_path(size / 2.0f / scale, canvas, paint);
canvas->restore();
canvas->save();
canvas->translate(size / 2.0f, 80.0f + size / 2.0f);
canvas->scale(scale, scale);
canvas->drawCircle(0.0f, 0.0f, size / 2.0f / scale, paint);
canvas->restore();
canvas->save();
canvas->translate(0.0f, 160.0f);
canvas->scale(scale, scale);
canvas->drawRect(SkRect::MakeXYWH(0.0f, 0.0f, size / scale, size / scale), paint);
canvas->restore();
canvas->save();
canvas->translate(0.0f, 240.0f);
canvas->scale(scale, scale);
canvas->drawLine(0.0f, 0.0f, size / scale, size / scale, paint);
canvas->restore();
canvas->translate(80.0f, 0.0f);
}
}
}
private:
using INHERITED = GM;
};
DEF_GM( return new ScaledStrokesGM; )