76 lines
2.4 KiB
C++
76 lines
2.4 KiB
C++
/*
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* Copyright 2011 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "gm/gm.h"
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#include "include/core/SkCanvas.h"
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#include "include/core/SkColor.h"
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#include "include/core/SkPaint.h"
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#include "include/core/SkPathBuilder.h"
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#include "include/core/SkRect.h"
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#include "include/core/SkScalar.h"
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#include "include/core/SkTypes.h"
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#include "include/utils/SkRandom.h"
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static void test_hittest(SkCanvas* canvas, const SkPath& path) {
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SkPaint paint;
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SkRect r = path.getBounds();
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paint.setColor(SK_ColorRED);
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canvas->drawPath(path, paint);
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const SkScalar MARGIN = SkIntToScalar(4);
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paint.setColor(0x800000FF);
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for (SkScalar y = r.fTop + SK_ScalarHalf - MARGIN; y < r.fBottom + MARGIN; y += SK_Scalar1) {
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for (SkScalar x = r.fLeft + SK_ScalarHalf - MARGIN; x < r.fRight + MARGIN; x += SK_Scalar1) {
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if (path.contains(x, y)) {
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canvas->drawPoint(x, y, paint);
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}
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}
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}
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}
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DEF_SIMPLE_GM_CAN_FAIL(hittestpath, canvas, errorMsg, 700, 460) {
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if (canvas->recordingContext()) {
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// GPU rasterization results vary greatly from platform to platform. We can't use them as
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// an expected result for our internal SkPath::contains().
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*errorMsg = "This test is for CPU configs only.";
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return skiagm::DrawResult::kSkip;
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}
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SkPathBuilder b;
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SkRandom rand;
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int scale = 300;
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for (int i = 0; i < 4; ++i) {
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// get the random values deterministically
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SkScalar randoms[12];
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for (int index = 0; index < (int) SK_ARRAY_COUNT(randoms); ++index) {
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randoms[index] = rand.nextUScalar1();
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}
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b.lineTo(randoms[0] * scale, randoms[1] * scale)
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.quadTo(randoms[2] * scale, randoms[3] * scale,
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randoms[4] * scale, randoms[5] * scale)
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.cubicTo(randoms[6] * scale, randoms[7] * scale,
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randoms[8] * scale, randoms[9] * scale,
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randoms[10] * scale, randoms[11] * scale);
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}
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b.setFillType(SkPathFillType::kEvenOdd);
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b.offset(SkIntToScalar(20), SkIntToScalar(20));
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SkPath path = b.detach();
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test_hittest(canvas, path);
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canvas->translate(SkIntToScalar(scale), 0);
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path.setFillType(SkPathFillType::kWinding);
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test_hittest(canvas, path);
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return skiagm::DrawResult::kOk;
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}
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