| /* |
| * 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 "SkPath.h" |
| #include "SkTArray.h" |
| |
| namespace skiagm { |
| |
| // this GM tests hairlines which fill nearly the entire render target |
| class StLouisArchGM : public GM { |
| protected: |
| SkString onShortName() override { |
| return SkString("stlouisarch"); |
| } |
| |
| SkISize onISize() override { return SkISize::Make((int)kWidth, (int)kHeight); } |
| |
| void onOnceBeforeDraw() 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) 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; |
| }; |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| DEF_GM( return new StLouisArchGM; ) |
| |
| } |