| |
| /* |
| * Copyright 2011 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 "SkRandom.h" |
| |
| namespace skiagm { |
| |
| #define W 400 |
| #define H 400 |
| #define N 100 |
| |
| static const SkScalar SW = SkIntToScalar(W); |
| static const SkScalar SH = SkIntToScalar(H); |
| |
| class StrokeRectsGM : public GM { |
| public: |
| StrokeRectsGM() {} |
| |
| protected: |
| virtual SkString onShortName() { |
| return SkString("strokerects"); |
| } |
| |
| virtual SkISize onISize() { |
| return make_isize(W*2, H*2); |
| } |
| |
| static void rnd_rect(SkRect* r, SkLCGRandom& rand) { |
| SkScalar x = rand.nextUScalar1() * W; |
| SkScalar y = rand.nextUScalar1() * H; |
| SkScalar w = rand.nextUScalar1() * (W >> 2); |
| SkScalar h = rand.nextUScalar1() * (H >> 2); |
| SkScalar hoffset = rand.nextSScalar1(); |
| SkScalar woffset = rand.nextSScalar1(); |
| |
| r->set(x, y, x + w, y + h); |
| r->offset(-w/2 + woffset, -h/2 + hoffset); |
| } |
| |
| virtual void onDraw(SkCanvas* canvas) { |
| SkPaint paint; |
| paint.setStyle(SkPaint::kStroke_Style); |
| |
| for (int y = 0; y < 2; y++) { |
| paint.setAntiAlias(!!y); |
| for (int x = 0; x < 2; x++) { |
| paint.setStrokeWidth(x * SkIntToScalar(3)); |
| |
| SkAutoCanvasRestore acr(canvas, true); |
| canvas->translate(SW * x, SH * y); |
| canvas->clipRect(SkRect::MakeLTRB( |
| SkIntToScalar(2), SkIntToScalar(2) |
| , SW - SkIntToScalar(2), SH - SkIntToScalar(2) |
| )); |
| |
| SkLCGRandom rand; |
| for (int i = 0; i < N; i++) { |
| SkRect r; |
| rnd_rect(&r, rand); |
| canvas->drawRect(r, paint); |
| } |
| } |
| } |
| } |
| |
| private: |
| typedef GM INHERITED; |
| }; |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| static GM* MyFactory(void*) { return new StrokeRectsGM; } |
| static GMRegistry reg(MyFactory); |
| |
| } |