add gm for stroked circles that are zoomed
BUG=skia:
TBR=
Review URL: https://codereview.chromium.org/912203002
diff --git a/gm/addarc.cpp b/gm/addarc.cpp
index aef7916..67d752a 100644
--- a/gm/addarc.cpp
+++ b/gm/addarc.cpp
@@ -111,3 +111,54 @@
typedef skiagm::GM INHERITED;
};
DEF_GM( return new AddArcMeasGM; )
+
+///////////////////////////////////////////////////
+
+// Emphasize drawing a stroked oval (containing conics) and then scaling the results up,
+// to ensure that we compute the stroke taking the CTM into account
+//
+class StrokeCircleGM : public skiagm::GM {
+public:
+ StrokeCircleGM() : fRotate(0) {}
+
+protected:
+ SkString onShortName() SK_OVERRIDE { return SkString("strokecircle"); }
+
+ SkISize onISize() SK_OVERRIDE { return SkISize::Make(520, 520); }
+
+ void onDraw(SkCanvas* canvas) SK_OVERRIDE {
+ canvas->scale(20, 20);
+ canvas->translate(13, 13);
+
+ SkPaint paint;
+ paint.setAntiAlias(true);
+ paint.setStyle(SkPaint::kStroke_Style);
+ paint.setStrokeWidth(SK_Scalar1 / 2);
+
+ const SkScalar delta = paint.getStrokeWidth() * 3 / 2;
+ SkRect r = SkRect::MakeXYWH(-12, -12, 24, 24);
+ SkRandom rand;
+
+ SkScalar sign = 1;
+ while (r.width() > paint.getStrokeWidth() * 2) {
+ SkAutoCanvasRestore acr(canvas, true);
+ canvas->rotate(fRotate * sign);
+
+ paint.setColor(rand.nextU() | (0xFF << 24));
+ canvas->drawOval(r, paint);
+ r.inset(delta, delta);
+ sign = -sign;
+ }
+ }
+
+ bool onAnimate(const SkAnimTimer& timer) SK_OVERRIDE {
+ fRotate = timer.scaled(60, 360);
+ return true;
+ }
+
+private:
+ SkScalar fRotate;
+
+ typedef skiagm::GM INHERITED;
+};
+DEF_GM( return new StrokeCircleGM; )