1/* 2 * Copyright 2011 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8#include "gm.h" 9#include "SkCanvas.h" 10#include "SkCullPoints.h" 11#include "SkRandom.h" 12 13static void test_hittest(SkCanvas* canvas, const SkPath& path) { 14 SkPaint paint; 15 SkRect r = path.getBounds(); 16 17 paint.setColor(SK_ColorRED); 18 canvas->drawPath(path, paint); 19 20 const SkScalar MARGIN = SkIntToScalar(4); 21 22 paint.setColor(0x800000FF); 23 for (SkScalar y = r.fTop + SK_ScalarHalf - MARGIN; y < r.fBottom + MARGIN; y += SK_Scalar1) { 24 for (SkScalar x = r.fLeft + SK_ScalarHalf - MARGIN; x < r.fRight + MARGIN; x += SK_Scalar1) { 25 if (path.contains(x, y)) { 26 canvas->drawPoint(x, y, paint); 27 } 28 } 29 } 30} 31 32class HitTestPathGM : public skiagm::GM { 33public: 34 HitTestPathGM () {} 35 36protected: 37 38 SkString onShortName() override { 39 return SkString("hittestpath"); 40 } 41 42 SkISize onISize() override { return SkISize::Make(700, 460); } 43 44 void onDraw(SkCanvas* canvas) override { 45 SkPath path; 46 SkRandom rand; 47 48 int scale = 300; 49 for (int i = 0; i < 4; ++i) { 50 path.lineTo(rand.nextUScalar1() * scale, rand.nextUScalar1() * scale); 51 path.quadTo(rand.nextUScalar1() * scale, rand.nextUScalar1() * scale, 52 rand.nextUScalar1() * scale, rand.nextUScalar1() * scale); 53 path.cubicTo(rand.nextUScalar1() * scale, rand.nextUScalar1() * scale, 54 rand.nextUScalar1() * scale, rand.nextUScalar1() * scale, 55 rand.nextUScalar1() * scale, rand.nextUScalar1() * scale); 56 } 57 58 path.setFillType(SkPath::kEvenOdd_FillType); 59 path.offset(SkIntToScalar(20), SkIntToScalar(20)); 60 61 test_hittest(canvas, path); 62 63 canvas->translate(SkIntToScalar(scale), 0); 64 path.setFillType(SkPath::kWinding_FillType); 65 66 test_hittest(canvas, path); 67 } 68 69private: 70 typedef GM INHERITED; 71}; 72 73////////////////////////////////////////////////////////////////////////////// 74 75static skiagm::GM* MyFactory(void*) { return new HitTestPathGM; } 76static skiagm::GMRegistry reg(MyFactory); 77