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); } }