| /* |
| * 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/gm.h" |
| #include "include/core/SkCanvas.h" |
| #include "include/core/SkColor.h" |
| #include "include/core/SkPaint.h" |
| #include "include/core/SkPathBuilder.h" |
| #include "include/core/SkRect.h" |
| #include "include/core/SkScalar.h" |
| #include "include/core/SkTypes.h" |
| #include "include/utils/SkRandom.h" |
| |
| static void test_hittest(SkCanvas* canvas, const SkPath& path) { |
| SkPaint paint; |
| SkRect r = path.getBounds(); |
| |
| paint.setColor(SK_ColorRED); |
| canvas->drawPath(path, paint); |
| |
| const SkScalar MARGIN = SkIntToScalar(4); |
| |
| paint.setColor(0x800000FF); |
| for (SkScalar y = r.fTop + SK_ScalarHalf - MARGIN; y < r.fBottom + MARGIN; y += SK_Scalar1) { |
| for (SkScalar x = r.fLeft + SK_ScalarHalf - MARGIN; x < r.fRight + MARGIN; x += SK_Scalar1) { |
| if (path.contains(x, y)) { |
| canvas->drawPoint(x, y, paint); |
| } |
| } |
| } |
| } |
| |
| DEF_SIMPLE_GM_CAN_FAIL(hittestpath, canvas, errorMsg, 700, 460) { |
| if (canvas->recordingContext()) { |
| // GPU rasterization results vary greatly from platform to platform. We can't use them as |
| // an expected result for our internal SkPath::contains(). |
| *errorMsg = "This test is for CPU configs only."; |
| return skiagm::DrawResult::kSkip; |
| } |
| |
| SkPathBuilder b; |
| SkRandom rand; |
| |
| int scale = 300; |
| for (int i = 0; i < 4; ++i) { |
| // get the random values deterministically |
| SkScalar randoms[12]; |
| for (int index = 0; index < (int) std::size(randoms); ++index) { |
| randoms[index] = rand.nextUScalar1(); |
| } |
| b.lineTo(randoms[0] * scale, randoms[1] * scale) |
| .quadTo(randoms[2] * scale, randoms[3] * scale, |
| randoms[4] * scale, randoms[5] * scale) |
| .cubicTo(randoms[6] * scale, randoms[7] * scale, |
| randoms[8] * scale, randoms[9] * scale, |
| randoms[10] * scale, randoms[11] * scale); |
| } |
| |
| b.setFillType(SkPathFillType::kEvenOdd); |
| b.offset(SkIntToScalar(20), SkIntToScalar(20)); |
| |
| SkPath path = b.detach(); |
| |
| test_hittest(canvas, path); |
| |
| canvas->translate(SkIntToScalar(scale), 0); |
| path.setFillType(SkPathFillType::kWinding); |
| |
| test_hittest(canvas, path); |
| return skiagm::DrawResult::kOk; |
| } |