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Diffstat (limited to 'gm/stlouisarch.cpp')
-rw-r--r-- | gm/stlouisarch.cpp | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/gm/stlouisarch.cpp b/gm/stlouisarch.cpp new file mode 100644 index 0000000000..06f607803a --- /dev/null +++ b/gm/stlouisarch.cpp @@ -0,0 +1,97 @@ +/* + * 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.h" +#include "SkCanvas.h" +#include "SkTArray.h" + +namespace skiagm { + +// this GM tests hairlines which fill nearly the entire render target +class StLouisArchGM : public GM { +protected: + SkString onShortName() SK_OVERRIDE { + return SkString("stlouisarch"); + } + + SkISize onISize() SK_OVERRIDE { return SkISize::Make((int)kWidth, (int)kHeight); } + + void onOnceBeforeDraw() SK_OVERRIDE { + { + SkPath* bigQuad = &fPaths.push_back(); + bigQuad->moveTo(0, 0); + bigQuad->quadTo(kWidth/2, kHeight, kWidth, 0); + } + + { + SkPath* degenBigQuad = &fPaths.push_back(); + SkScalar yPos = kHeight / 2 + 10; + degenBigQuad->moveTo(0, yPos); + degenBigQuad->quadTo(0, yPos, kWidth, yPos); + } + + + { + SkPath* bigCubic = &fPaths.push_back(); + bigCubic->moveTo(0, 0); + bigCubic->cubicTo(0, kHeight, + kWidth, kHeight, + kWidth, 0); + } + + { + SkPath* degenBigCubic = &fPaths.push_back(); + SkScalar yPos = kHeight / 2; + degenBigCubic->moveTo(0, yPos); + degenBigCubic->cubicTo(0, yPos, + 0, yPos, + kWidth, yPos); + } + + { + SkPath* bigConic = &fPaths.push_back(); + bigConic->moveTo(0, 0); + bigConic->conicTo(kWidth/2, kHeight, kWidth, 0, .5); + } + + { + SkPath* degenBigConic = &fPaths.push_back(); + SkScalar yPos = kHeight / 2 - 10; + degenBigConic->moveTo(0, yPos); + degenBigConic->conicTo(0, yPos, kWidth, yPos, .5); + } + } + + void onDraw(SkCanvas* canvas) SK_OVERRIDE { + canvas->save(); + canvas->scale(1, -1); + canvas->translate(0, -kHeight); + for (int p = 0; p < fPaths.count(); ++p) { + SkPaint paint; + paint.setARGB(0xff, 0, 0, 0); + paint.setAntiAlias(true); + paint.setStyle(SkPaint::kStroke_Style); + paint.setStrokeWidth(0); + canvas->drawPath(fPaths[p], paint); + } + canvas->restore(); + } + + const SkScalar kWidth = 256; + const SkScalar kHeight = 256; + +private: + SkTArray<SkPath> fPaths; + typedef GM INHERITED; +}; + +////////////////////////////////////////////////////////////////////////////// + +static GM* MyFactory(void*) { return new StLouisArchGM; } +static GMRegistry reg(MyFactory); + +} |