void onDraw(SkCanvas* canvas) override {
canvas->scale(1.5f, 1.5f);
canvas->translate(50,50);
const float blurRadii[] = { 1,5,10,20 };
const int cornerRadii[] = { 1,5,10,20 };
const SkRect r = SkRect::MakeWH(SkIntToScalar(25), SkIntToScalar(25));
for (size_t i = 0; i < SK_ARRAY_COUNT(blurRadii); ++i) {
SkAutoCanvasRestore autoRestore(canvas, true);
canvas->translate(0, (r.height() + SkIntToScalar(50)) * i);
for (size_t j = 0; j < SK_ARRAY_COUNT(cornerRadii); ++j) {
for (int k = 0; k <= 1; k++) {
SkMaskFilter* filter = SkBlurMaskFilter::Create(
kNormal_SkBlurStyle,
SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(blurRadii[i])),
SkBlurMaskFilter::kHighQuality_BlurFlag);
SkPaint paint;
paint.setColor(SK_ColorBLACK);
paint.setMaskFilter(filter)->unref();
bool useRadial = SkToBool(k);
if (useRadial) {
paint.setShader(MakeRadial());
}
SkRRect rrect;
rrect.setRectXY(r, SkIntToScalar(cornerRadii[j]),
SkIntToScalar(cornerRadii[j]));
canvas->drawRRect(rrect, paint);
canvas->translate(r.width() + SkIntToScalar(50), 0);
}
}
}
}
void onDraw(SkCanvas* canvas) override {
canvas->translate(STROKE_WIDTH*3/2, STROKE_WIDTH*3/2);
SkRect r = { 0, 0, 100, 50 };
SkScalar scales[] = { SK_Scalar1, 0.6f };
for (size_t s = 0; s < SK_ARRAY_COUNT(scales); ++s) {
canvas->save();
for (size_t f = 0; f < SK_ARRAY_COUNT(fMaskFilters); ++f) {
SkPaint paint;
paint.setMaskFilter(fMaskFilters[f]);
paint.setAlpha(fAlpha);
SkPaint paintWithRadial = paint;
paintWithRadial.setShader(MakeRadial());
static const Proc procs[] = {
fill_rect, draw_donut, draw_donut_skewed
};
canvas->save();
canvas->scale(scales[s], scales[s]);
this->drawProcs(canvas, r, paint, false, procs, SK_ARRAY_COUNT(procs));
canvas->translate(r.width() * 4/3, 0);
this->drawProcs(canvas, r, paintWithRadial, false, procs, SK_ARRAY_COUNT(procs));
canvas->translate(r.width() * 4/3, 0);
this->drawProcs(canvas, r, paint, true, procs, SK_ARRAY_COUNT(procs));
canvas->translate(r.width() * 4/3, 0);
this->drawProcs(canvas, r, paintWithRadial, true, procs, SK_ARRAY_COUNT(procs));
canvas->restore();
canvas->translate(0, SK_ARRAY_COUNT(procs) * r.height() * 4/3 * scales[s]);
}
canvas->restore();
canvas->translate(4 * r.width() * 4/3 * scales[s], 0);
}
}
