1 2 /* 3 * Copyright 2011 Google Inc. 4 * 5 * Use of this source code is governed by a BSD-style license that can be 6 * found in the LICENSE file. 7 */ 8 9 10 11 #include "gm.h" 12 #include "SkRandom.h" 13 14 namespace skiagm { 15 16 #define W 400 17 #define H 400 18 #define N 100 19 20 static const SkScalar SW = SkIntToScalar(W); 21 static const SkScalar SH = SkIntToScalar(H); 22 23 class StrokeRectGM : public GM { 24 public: 25 StrokeRectGM() {} 26 27 protected: 28 virtual SkString onShortName() { 29 return SkString("strokerects"); 30 } 31 32 virtual SkISize onISize() { 33 return make_isize(W*2, H*2); 34 } 35 36 static void rnd_rect(SkRect* r, SkRandom& rand) { 37 SkScalar x = rand.nextUScalar1() * W; 38 SkScalar y = rand.nextUScalar1() * H; 39 SkScalar w = rand.nextUScalar1() * (W >> 2); 40 SkScalar h = rand.nextUScalar1() * (H >> 2); 41 SkScalar hoffset = rand.nextSScalar1(); 42 SkScalar woffset = rand.nextSScalar1(); 43 44 r->set(x, y, x + w, y + h); 45 r->offset(-w/2 + woffset, -h/2 + hoffset); 46 } 47 48 virtual void onDraw(SkCanvas* canvas) { 49 SkPaint paint; 50 paint.setStyle(SkPaint::kStroke_Style); 51 52 for (int y = 0; y < 2; y++) { 53 paint.setAntiAlias(!!y); 54 for (int x = 0; x < 2; x++) { 55 paint.setStrokeWidth(x * SkIntToScalar(3)); 56 57 SkAutoCanvasRestore acr(canvas, true); 58 canvas->translate(SW * x, SH * y); 59 canvas->clipRect(SkRect::MakeLTRB( 60 SkIntToScalar(2), SkIntToScalar(2) 61 , SW - SkIntToScalar(2), SH - SkIntToScalar(2) 62 )); 63 64 SkRandom rand; 65 for (int i = 0; i < N; i++) { 66 SkRect r; 67 rnd_rect(&r, rand); 68 canvas->drawRect(r, paint); 69 } 70 } 71 } 72 } 73 74 private: 75 typedef GM INHERITED; 76 }; 77 78 ////////////////////////////////////////////////////////////////////////////// 79 80 static GM* MyFactory(void*) { return new StrokeRectGM; } 81 static GMRegistry reg(MyFactory); 82 83 } 84 85
