зеркало из https://github.com/mozilla/gecko-dev.git
105 строки
4.0 KiB
C++
105 строки
4.0 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "gtest/gtest.h"
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#include "PolygonTestUtils.h"
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#include "nsTArray.h"
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#include "Point.h"
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#include "Polygon.h"
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#include "Triangle.h"
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using namespace mozilla::gfx;
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typedef mozilla::gfx::Polygon MozPolygon;
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TEST(MozPolygon, TriangulateRectangle)
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{
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const MozPolygon p{
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Point4D(0.0f, 0.0f, 1.0f, 1.0f), Point4D(0.0f, 1.0f, 1.0f, 1.0f),
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Point4D(1.0f, 1.0f, 1.0f, 1.0f), Point4D(1.0f, 0.0f, 1.0f, 1.0f)};
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const nsTArray<Triangle> triangles = p.ToTriangles();
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const nsTArray<Triangle> expected = {
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Triangle(Point(0.0f, 0.0f), Point(0.0f, 1.0f), Point(1.0f, 1.0f)),
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Triangle(Point(0.0f, 0.0f), Point(1.0f, 1.0f), Point(1.0f, 0.0f))};
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AssertArrayEQ(triangles, expected);
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}
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TEST(MozPolygon, TriangulatePentagon)
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{
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const MozPolygon p{
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Point4D(0.0f, 0.0f, 1.0f, 1.0f), Point4D(0.0f, 1.0f, 1.0f, 1.0f),
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Point4D(0.5f, 1.5f, 1.0f, 1.0f), Point4D(1.0f, 1.0f, 1.0f, 1.0f),
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Point4D(1.0f, 0.0f, 1.0f, 1.0f)};
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const nsTArray<Triangle> triangles = p.ToTriangles();
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const nsTArray<Triangle> expected = {
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Triangle(Point(0.0f, 0.0f), Point(0.0f, 1.0f), Point(0.5f, 1.5f)),
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Triangle(Point(0.0f, 0.0f), Point(0.5f, 1.5f), Point(1.0f, 1.0f)),
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Triangle(Point(0.0f, 0.0f), Point(1.0f, 1.0f), Point(1.0f, 0.0f))};
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AssertArrayEQ(triangles, expected);
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}
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static void TestClipRect(const MozPolygon& aPolygon,
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const MozPolygon& aExpected, const Rect& aRect) {
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const MozPolygon res = aPolygon.ClipPolygon(MozPolygon::FromRect(aRect));
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EXPECT_TRUE(res == aExpected);
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}
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TEST(MozPolygon, ClipRectangle)
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{
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MozPolygon polygon{
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Point4D(0.0f, 0.0f, 0.0f, 1.0f), Point4D(0.0f, 1.0f, 0.0f, 1.0f),
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Point4D(1.0f, 1.0f, 0.0f, 1.0f), Point4D(1.0f, 0.0f, 0.0f, 1.0f)};
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TestClipRect(polygon, polygon, Rect(0.0f, 0.0f, 1.0f, 1.0f));
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MozPolygon expected = MozPolygon{
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Point4D(0.0f, 0.0f, 0.0f, 1.0f), Point4D(0.0f, 0.8f, 0.0f, 1.0f),
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Point4D(0.8f, 0.8f, 0.0f, 1.0f), Point4D(0.8f, 0.0f, 0.0f, 1.0f)};
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TestClipRect(polygon, expected, Rect(0.0f, 0.0f, 0.8f, 0.8f));
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expected = MozPolygon{
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Point4D(0.2f, 0.2f, 0.0f, 1.0f), Point4D(0.2f, 1.0f, 0.0f, 1.0f),
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Point4D(1.0f, 1.0f, 0.0f, 1.0f), Point4D(1.0f, 0.2f, 0.0f, 1.0f)};
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TestClipRect(polygon, expected, Rect(0.2f, 0.2f, 0.8f, 0.8f));
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expected = MozPolygon{
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Point4D(0.2f, 0.2f, 0.0f, 1.0f), Point4D(0.2f, 0.8f, 0.0f, 1.0f),
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Point4D(0.8f, 0.8f, 0.0f, 1.0f), Point4D(0.8f, 0.2f, 0.0f, 1.0f)};
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TestClipRect(polygon, expected, Rect(0.2f, 0.2f, 0.6f, 0.6f));
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}
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TEST(MozPolygon, ClipTriangle)
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{
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MozPolygon clipped, expected;
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const MozPolygon polygon{Point4D(0.0f, 0.0f, 0.0f, 1.0f),
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Point4D(0.0f, 1.0f, 0.0f, 1.0f),
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Point4D(1.0f, 1.0f, 0.0f, 1.0f)};
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expected = MozPolygon{Point4D(0.0f, 0.0f, 0.0f, 1.0f),
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Point4D(0.0f, 1.0f, 0.0f, 1.0f),
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Point4D(1.0f, 1.0f, 0.0f, 1.0f)};
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TestClipRect(polygon, expected, Rect(0.0f, 0.0f, 1.0f, 1.0f));
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expected = MozPolygon{Point4D(0.0f, 0.0f, 0.0f, 1.0f),
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Point4D(0.0f, 0.8f, 0.0f, 1.0f),
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Point4D(0.8f, 0.8f, 0.0f, 1.0f)};
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TestClipRect(polygon, expected, Rect(0.0f, 0.0f, 0.8f, 0.8f));
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expected = MozPolygon{Point4D(0.2f, 0.2f, 0.0f, 1.0f),
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Point4D(0.2f, 1.0f, 0.0f, 1.0f),
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Point4D(1.0f, 1.0f, 0.0f, 1.0f)};
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TestClipRect(polygon, expected, Rect(0.2f, 0.2f, 0.8f, 0.8f));
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expected = MozPolygon{Point4D(0.2f, 0.2f, 0.0f, 1.0f),
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Point4D(0.2f, 0.8f, 0.0f, 1.0f),
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Point4D(0.8f, 0.8f, 0.0f, 1.0f)};
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TestClipRect(polygon, expected, Rect(0.2f, 0.2f, 0.6f, 0.6f));
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}
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