95bc5f3495
R=reed@google.com, bsalomon@google.com Let isNested(Fill)Rect return true if drawn path describes filled rectangles. Review URL: https://codereview.chromium.org/1073473002
91 lines
2.8 KiB
C++
91 lines
2.8 KiB
C++
/*
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* Copyright 2012 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 "SkPaint.h"
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#include "SkPath.h"
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#include "SkRect.h"
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#include "SkStroke.h"
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#include "Test.h"
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static bool equal(const SkRect& a, const SkRect& b) {
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return SkScalarNearlyEqual(a.left(), b.left()) &&
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SkScalarNearlyEqual(a.top(), b.top()) &&
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SkScalarNearlyEqual(a.right(), b.right()) &&
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SkScalarNearlyEqual(a.bottom(), b.bottom());
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}
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static void test_strokecubic(skiatest::Reporter* reporter) {
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uint32_t hexCubicVals[] = {
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0x424c1086, 0x44bcf0cb, // fX=51.0161362 fY=1511.52478
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0x424c107c, 0x44bcf0cb, // fX=51.0160980 fY=1511.52478
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0x424c10c2, 0x44bcf0cb, // fX=51.0163651 fY=1511.52478
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0x424c1119, 0x44bcf0ca, // fX=51.0166969 fY=1511.52466
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};
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SkPoint cubicVals[] = {
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{51.0161362f, 1511.52478f },
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{51.0160980f, 1511.52478f },
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{51.0163651f, 1511.52478f },
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{51.0166969f, 1511.52466f },
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};
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SkPaint paint;
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paint.setStyle(SkPaint::kStroke_Style);
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paint.setStrokeWidth(0.394537568f);
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SkPath path, fillPath;
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path.moveTo(cubicVals[0]);
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path.cubicTo(cubicVals[1], cubicVals[2], cubicVals[3]);
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paint.getFillPath(path, &fillPath);
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path.reset();
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path.moveTo(SkBits2Float(hexCubicVals[0]), SkBits2Float(hexCubicVals[1]));
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path.cubicTo(SkBits2Float(hexCubicVals[2]), SkBits2Float(hexCubicVals[3]),
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SkBits2Float(hexCubicVals[4]), SkBits2Float(hexCubicVals[5]),
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SkBits2Float(hexCubicVals[6]), SkBits2Float(hexCubicVals[7]));
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paint.getFillPath(path, &fillPath);
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}
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static void test_strokerect(skiatest::Reporter* reporter) {
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const SkScalar width = SkIntToScalar(10);
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SkPaint paint;
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paint.setStyle(SkPaint::kStroke_Style);
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paint.setStrokeWidth(width);
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SkRect r = { 0, 0, SkIntToScalar(200), SkIntToScalar(100) };
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SkRect outer(r);
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outer.outset(width/2, width/2);
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static const SkPaint::Join joins[] = {
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SkPaint::kMiter_Join, SkPaint::kRound_Join, SkPaint::kBevel_Join
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};
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for (size_t i = 0; i < SK_ARRAY_COUNT(joins); ++i) {
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paint.setStrokeJoin(joins[i]);
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SkPath path, fillPath;
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path.addRect(r);
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paint.getFillPath(path, &fillPath);
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REPORTER_ASSERT(reporter, equal(outer, fillPath.getBounds()));
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bool isMiter = SkPaint::kMiter_Join == joins[i];
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SkRect nested[2];
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REPORTER_ASSERT(reporter, fillPath.isNestedFillRects(nested) == isMiter);
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if (isMiter) {
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SkRect inner(r);
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inner.inset(width/2, width/2);
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REPORTER_ASSERT(reporter, equal(nested[0], outer));
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REPORTER_ASSERT(reporter, equal(nested[1], inner));
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}
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}
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}
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DEF_TEST(Stroke, reporter) {
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test_strokecubic(reporter);
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test_strokerect(reporter);
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}
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