| /* |
| * Copyright 2013 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "gm/gm.h" |
| #include "include/core/SkCanvas.h" |
| #include "include/core/SkColor.h" |
| #include "include/core/SkPaint.h" |
| #include "include/core/SkRect.h" |
| #include "include/core/SkScalar.h" |
| #include "include/core/SkSize.h" |
| #include "include/core/SkString.h" |
| #include "include/core/SkTypes.h" |
| |
| namespace skiagm { |
| |
| // Draw rects with various stroke widths at 1/8 pixel increments |
| class ThinStrokedRectsGM : public GM { |
| public: |
| ThinStrokedRectsGM() { |
| this->setBGColor(0xFF000000); |
| } |
| |
| protected: |
| SkString onShortName() override { |
| return SkString("thinstrokedrects"); |
| } |
| |
| SkISize onISize() override { |
| return SkISize::Make(240, 320); |
| } |
| |
| void onDraw(SkCanvas* canvas) override { |
| |
| SkPaint paint; |
| paint.setColor(SK_ColorWHITE); |
| paint.setStyle(SkPaint::kStroke_Style); |
| paint.setAntiAlias(true); |
| |
| constexpr SkRect rect = { 0, 0, 10, 10 }; |
| constexpr SkRect rect2 = { 0, 0, 20, 20 }; |
| |
| constexpr SkScalar gStrokeWidths[] = { |
| 4, 2, 1, 0.5f, 0.25f, 0.125f, 0 |
| }; |
| |
| canvas->translate(5, 5); |
| for (int i = 0; i < 8; ++i) { |
| canvas->save(); |
| canvas->translate(i*0.125f, i*30.0f); |
| for (size_t j = 0; j < std::size(gStrokeWidths); ++j) { |
| paint.setStrokeWidth(gStrokeWidths[j]); |
| canvas->drawRect(rect, paint); |
| canvas->translate(15, 0); |
| } |
| canvas->restore(); |
| } |
| |
| // Draw a second time in red with a scale |
| paint.setColor(SK_ColorRED); |
| canvas->translate(0, 15); |
| for (int i = 0; i < 8; ++i) { |
| canvas->save(); |
| canvas->translate(i*0.125f, i*30.0f); |
| canvas->scale(0.5f, 0.5f); |
| for (size_t j = 0; j < std::size(gStrokeWidths); ++j) { |
| paint.setStrokeWidth(2.0f * gStrokeWidths[j]); |
| canvas->drawRect(rect2, paint); |
| canvas->translate(30, 0); |
| } |
| canvas->restore(); |
| } |
| } |
| |
| private: |
| using INHERITED = GM; |
| }; |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| DEF_GM(return new ThinStrokedRectsGM;) |
| } // namespace skiagm |