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 "SkPath.h" 11 #include "SkRandom.h" 12 13 static 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 32 DEF_SIMPLE_GM(hittestpath, canvas, 700, 460) { 33 SkPath path; 34 SkRandom rand; 35 36 int scale = 300; 37 for (int i = 0; i < 4; ++i) { 38 // get the random values deterministically 39 SkScalar randoms[12]; 40 for (int index = 0; index < (int) SK_ARRAY_COUNT(randoms); ++index) { 41 randoms[index] = rand.nextUScalar1(); 42 } 43 path.lineTo(randoms[0] * scale, randoms[1] * scale); 44 path.quadTo(randoms[2] * scale, randoms[3] * scale, 45 randoms[4] * scale, randoms[5] * scale); 46 path.cubicTo(randoms[6] * scale, randoms[7] * scale, 47 randoms[8] * scale, randoms[9] * scale, 48 randoms[10] * scale, randoms[11] * scale); 49 } 50 51 path.setFillType(SkPath::kEvenOdd_FillType); 52 path.offset(SkIntToScalar(20), SkIntToScalar(20)); 53 54 test_hittest(canvas, path); 55 56 canvas->translate(SkIntToScalar(scale), 0); 57 path.setFillType(SkPath::kWinding_FillType); 58 59 test_hittest(canvas, path); 60 } 61
