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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "gtest/gtest.h"
#include "PolygonTestUtils.h"
#include "nsTArray.h"
#include "Point.h"
#include "Polygon.h"
#include "Triangle.h"
using namespace mozilla::gfx;
TEST(Polygon3D, TriangulateRectangle)
{
const Polygon3D p {
Point3D(0.0f, 0.0f, 1.0f),
Point3D(0.0f, 1.0f, 1.0f),
Point3D(1.0f, 1.0f, 1.0f),
Point3D(1.0f, 0.0f, 1.0f)
};
const nsTArray<Triangle> triangles = p.ToTriangles();
const nsTArray<Triangle> expected = {
Triangle(Point(0.0f, 0.0f), Point(0.0f, 1.0f), Point(1.0f, 1.0f)),
Triangle(Point(0.0f, 0.0f), Point(1.0f, 1.0f), Point(1.0f, 0.0f))
};
AssertArrayEQ(triangles, expected);
}
TEST(Polygon3D, TriangulatePentagon)
{
const Polygon3D p {
Point3D(0.0f, 0.0f, 1.0f),
Point3D(0.0f, 1.0f, 1.0f),
Point3D(0.5f, 1.5f, 1.0f),
Point3D(1.0f, 1.0f, 1.0f),
Point3D(1.0f, 0.0f, 1.0f)
};
const nsTArray<Triangle> triangles = p.ToTriangles();
const nsTArray<Triangle> expected = {
Triangle(Point(0.0f, 0.0f), Point(0.0f, 1.0f), Point(0.5f, 1.5f)),
Triangle(Point(0.0f, 0.0f), Point(0.5f, 1.5f), Point(1.0f, 1.0f)),
Triangle(Point(0.0f, 0.0f), Point(1.0f, 1.0f), Point(1.0f, 0.0f))
};
AssertArrayEQ(triangles, expected);
}
TEST(Polygon3D, ClipRectangle)
{
Polygon3D clipped, expected;
Polygon3D polygon {
Point3D(0.0f, 0.0f, 0.0f),
Point3D(0.0f, 1.0f, 0.0f),
Point3D(1.0f, 1.0f, 0.0f),
Point3D(1.0f, 0.0f, 0.0f)
};
clipped = polygon.ClipPolygon(Rect(0.0f, 0.0f, 1.0f, 1.0f));
EXPECT_TRUE(clipped == polygon);
clipped = polygon.ClipPolygon(Rect(0.0f, 0.0f, 0.8f, 0.8f));
expected = Polygon3D {
Point3D(0.0f, 0.0f, 0.0f),
Point3D(0.0f, 0.8f, 0.0f),
Point3D(0.8f, 0.8f, 0.0f),
Point3D(0.8f, 0.0f, 0.0f)
};
EXPECT_TRUE(clipped == expected);
clipped = polygon.ClipPolygon(Rect(0.2f, 0.2f, 0.8f, 0.8f));
expected = Polygon3D {
Point3D(0.2f, 0.2f, 0.0f),
Point3D(0.2f, 1.0f, 0.0f),
Point3D(1.0f, 1.0f, 0.0f),
Point3D(1.0f, 0.2f, 0.0f)
};
EXPECT_TRUE(clipped == expected);
clipped = polygon.ClipPolygon(Rect(0.2f, 0.2f, 0.6f, 0.6f));
expected = Polygon3D {
Point3D(0.2f, 0.2f, 0.0f),
Point3D(0.2f, 0.8f, 0.0f),
Point3D(0.8f, 0.8f, 0.0f),
Point3D(0.8f, 0.2f, 0.0f)
};
EXPECT_TRUE(clipped == expected);
}
TEST(Polygon3D, ClipTriangle)
{
Polygon3D clipped, expected;
const Polygon3D polygon {
Point3D(0.0f, 0.0f, 0.0f),
Point3D(0.0f, 1.0f, 0.0f),
Point3D(1.0f, 1.0f, 0.0f)
};
clipped = polygon.ClipPolygon(Rect(0.0f, 0.0f, 1.0f, 1.0f));
expected = Polygon3D {
Point3D(0.0f, 0.0f, 0.0f),
Point3D(0.0f, 1.0f, 0.0f),
Point3D(1.0f, 1.0f, 0.0f)
};
EXPECT_TRUE(clipped == expected);
clipped = polygon.ClipPolygon(Rect(0.0f, 0.0f, 0.8f, 0.8f));
expected = Polygon3D {
Point3D(0.0f, 0.0f, 0.0f),
Point3D(0.0f, 0.8f, 0.0f),
Point3D(0.8f, 0.8f, 0.0f)
};
EXPECT_TRUE(clipped == expected);
clipped = polygon.ClipPolygon(Rect(0.2f, 0.2f, 0.8f, 0.8f));
expected = Polygon3D {
Point3D(0.2f, 0.2f, 0.0f),
Point3D(0.2f, 1.0f, 0.0f),
Point3D(1.0f, 1.0f, 0.0f)
};
EXPECT_TRUE(clipped == expected);
clipped = polygon.ClipPolygon(Rect(0.2f, 0.2f, 0.6f, 0.6f));
expected = Polygon3D {
Point3D(0.2f, 0.2f, 0.0f),
Point3D(0.2f, 0.8f, 0.0f),
Point3D(0.8f, 0.8f, 0.0f)
};
EXPECT_TRUE(clipped == expected);
}
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