diff options
Diffstat (limited to 'chromium/third_party/skia/gm/thinrects.cpp')
-rw-r--r-- | chromium/third_party/skia/gm/thinrects.cpp | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/chromium/third_party/skia/gm/thinrects.cpp b/chromium/third_party/skia/gm/thinrects.cpp new file mode 100644 index 00000000000..6517fe2796d --- /dev/null +++ b/chromium/third_party/skia/gm/thinrects.cpp @@ -0,0 +1,123 @@ +/* + * 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.h" + +namespace skiagm { + +// Draw various width thin rects at 1/8 horizontal pixel increments +class ThinRectsGM : public GM { +public: + ThinRectsGM() { + this->setBGColor(0xFF000000); + } + +protected: + virtual SkString onShortName() SK_OVERRIDE { + return SkString("thinrects"); + } + + virtual SkISize onISize() SK_OVERRIDE { + return SkISize::Make(240, 320); + } + + virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE { + + SkPaint white; + white.setColor(SK_ColorWHITE); + white.setAntiAlias(true); + + SkPaint green; + green.setColor(SK_ColorGREEN); + green.setAntiAlias(true); + + for (int i = 0; i < 8; ++i) { + canvas->save(); + canvas->translate(i*0.125f, i*40.0f); + DrawVertRects(canvas, white); + + canvas->translate(40.0f, 0.0f); + DrawVertRects(canvas, green); + canvas->restore(); + + canvas->save(); + canvas->translate(80.0f, i*40.0f + i*0.125f); + DrawHorizRects(canvas, white); + + canvas->translate(40.0f, 0.0f); + DrawHorizRects(canvas, green); + canvas->restore(); + + canvas->save(); + canvas->translate(160.0f + i*0.125f, + i*40.0f + i*0.125f); + DrawSquares(canvas, white); + + canvas->translate(40.0f, 0.0f); + DrawSquares(canvas, green); + canvas->restore(); + } + } + +private: + static void DrawVertRects(SkCanvas* canvas, const SkPaint& p) { + static const SkRect vertRects[] = { + { 1, 1, 5.0f, 21 }, // 4 pix wide + { 8, 1, 10.0f, 21 }, // 2 pix wide + { 13, 1, 14.0f, 21 }, // 1 pix wide + { 17, 1, 17.5f, 21 }, // 1/2 pix wide + { 21, 1, 21.25f, 21 }, // 1/4 pix wide + { 25, 1, 25.125f, 21 }, // 1/8 pix wide + { 29, 1, 29.0f, 21 } // 0 pix wide + }; + + for (size_t j = 0; j < SK_ARRAY_COUNT(vertRects); ++j) { + canvas->drawRect(vertRects[j], p); + } + } + + static void DrawHorizRects(SkCanvas* canvas, const SkPaint& p) { + static const SkRect horizRects[] = { + { 1, 1, 21, 5.0f }, // 4 pix high + { 1, 8, 21, 10.0f }, // 2 pix high + { 1, 13, 21, 14.0f }, // 1 pix high + { 1, 17, 21, 17.5f }, // 1/2 pix high + { 1, 21, 21, 21.25f }, // 1/4 pix high + { 1, 25, 21, 25.125f }, // 1/8 pix high + { 1, 29, 21, 29.0f } // 0 pix high + }; + + for (size_t j = 0; j < SK_ARRAY_COUNT(horizRects); ++j) { + canvas->drawRect(horizRects[j], p); + } + } + + static void DrawSquares(SkCanvas* canvas, const SkPaint& p) { + static const SkRect squares[] = { + { 1, 1, 5.0f, 5.0f }, // 4 pix + { 8, 8, 10.0f, 10.0f }, // 2 pix + { 13, 13, 14.0f, 14.0f }, // 1 pix + { 17, 17, 17.5f, 17.5f }, // 1/2 pix + { 21, 21, 21.25f, 21.25f }, // 1/4 pix + { 25, 25, 25.125f, 25.125f }, // 1/8 pix + { 29, 29, 29.0f, 29.0f } // 0 pix + }; + + for (size_t j = 0; j < SK_ARRAY_COUNT(squares); ++j) { + canvas->drawRect(squares[j], p); + } + } + + typedef GM INHERITED; +}; + +////////////////////////////////////////////////////////////////////////////// + +static GM* MyFactory(void*) { return new ThinRectsGM; } +static GMRegistry reg(MyFactory); + +} |