ben@chromium.org | 8e7c15d | 2013-12-19 06:01:15 +0900 | [diff] [blame] | 1 | // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #include "base/basictypes.h" |
| 6 | #include "testing/gtest/include/gtest/gtest.h" |
| 7 | #include "ui/gfx/geometry/point.h" |
| 8 | #include "ui/gfx/geometry/point_base.h" |
| 9 | #include "ui/gfx/geometry/point_conversions.h" |
| 10 | #include "ui/gfx/geometry/point_f.h" |
| 11 | |
| 12 | namespace gfx { |
| 13 | |
| 14 | namespace { |
| 15 | |
| 16 | int TestPointF(const PointF& p) { |
| 17 | return p.x(); |
| 18 | } |
| 19 | |
| 20 | } // namespace |
| 21 | |
| 22 | TEST(PointTest, ToPointF) { |
| 23 | // Check that implicit conversion from integer to float compiles. |
| 24 | Point a(10, 20); |
| 25 | float x = TestPointF(a); |
| 26 | EXPECT_EQ(x, a.x()); |
| 27 | |
| 28 | PointF b(10, 20); |
| 29 | EXPECT_EQ(a, b); |
| 30 | EXPECT_EQ(b, a); |
| 31 | } |
| 32 | |
| 33 | TEST(PointTest, IsOrigin) { |
| 34 | EXPECT_FALSE(Point(1, 0).IsOrigin()); |
| 35 | EXPECT_FALSE(Point(0, 1).IsOrigin()); |
| 36 | EXPECT_FALSE(Point(1, 2).IsOrigin()); |
| 37 | EXPECT_FALSE(Point(-1, 0).IsOrigin()); |
| 38 | EXPECT_FALSE(Point(0, -1).IsOrigin()); |
| 39 | EXPECT_FALSE(Point(-1, -2).IsOrigin()); |
| 40 | EXPECT_TRUE(Point(0, 0).IsOrigin()); |
| 41 | |
| 42 | EXPECT_FALSE(PointF(0.1f, 0).IsOrigin()); |
| 43 | EXPECT_FALSE(PointF(0, 0.1f).IsOrigin()); |
| 44 | EXPECT_FALSE(PointF(0.1f, 2).IsOrigin()); |
| 45 | EXPECT_FALSE(PointF(-0.1f, 0).IsOrigin()); |
| 46 | EXPECT_FALSE(PointF(0, -0.1f).IsOrigin()); |
| 47 | EXPECT_FALSE(PointF(-0.1f, -2).IsOrigin()); |
| 48 | EXPECT_TRUE(PointF(0, 0).IsOrigin()); |
| 49 | } |
| 50 | |
| 51 | TEST(PointTest, VectorArithmetic) { |
| 52 | Point a(1, 5); |
| 53 | Vector2d v1(3, -3); |
| 54 | Vector2d v2(-8, 1); |
| 55 | |
| 56 | static const struct { |
| 57 | Point expected; |
| 58 | Point actual; |
| 59 | } tests[] = { |
| 60 | { Point(4, 2), a + v1 }, |
| 61 | { Point(-2, 8), a - v1 }, |
| 62 | { a, a - v1 + v1 }, |
| 63 | { a, a + v1 - v1 }, |
| 64 | { a, a + Vector2d() }, |
| 65 | { Point(12, 1), a + v1 - v2 }, |
| 66 | { Point(-10, 9), a - v1 + v2 } |
| 67 | }; |
| 68 | |
| 69 | for (size_t i = 0; i < ARRAYSIZE_UNSAFE(tests); ++i) |
| 70 | EXPECT_EQ(tests[i].expected.ToString(), tests[i].actual.ToString()); |
| 71 | } |
| 72 | |
| 73 | TEST(PointTest, OffsetFromPoint) { |
| 74 | Point a(1, 5); |
| 75 | Point b(-20, 8); |
| 76 | EXPECT_EQ(Vector2d(-20 - 1, 8 - 5).ToString(), (b - a).ToString()); |
| 77 | } |
| 78 | |
| 79 | TEST(PointTest, ToRoundedPoint) { |
| 80 | EXPECT_EQ(Point(0, 0), ToRoundedPoint(PointF(0, 0))); |
| 81 | EXPECT_EQ(Point(0, 0), ToRoundedPoint(PointF(0.0001f, 0.0001f))); |
| 82 | EXPECT_EQ(Point(0, 0), ToRoundedPoint(PointF(0.4999f, 0.4999f))); |
| 83 | EXPECT_EQ(Point(1, 1), ToRoundedPoint(PointF(0.5f, 0.5f))); |
| 84 | EXPECT_EQ(Point(1, 1), ToRoundedPoint(PointF(0.9999f, 0.9999f))); |
| 85 | |
| 86 | EXPECT_EQ(Point(10, 10), ToRoundedPoint(PointF(10, 10))); |
| 87 | EXPECT_EQ(Point(10, 10), ToRoundedPoint(PointF(10.0001f, 10.0001f))); |
| 88 | EXPECT_EQ(Point(10, 10), ToRoundedPoint(PointF(10.4999f, 10.4999f))); |
| 89 | EXPECT_EQ(Point(11, 11), ToRoundedPoint(PointF(10.5f, 10.5f))); |
| 90 | EXPECT_EQ(Point(11, 11), ToRoundedPoint(PointF(10.9999f, 10.9999f))); |
| 91 | |
| 92 | EXPECT_EQ(Point(-10, -10), ToRoundedPoint(PointF(-10, -10))); |
| 93 | EXPECT_EQ(Point(-10, -10), ToRoundedPoint(PointF(-10.0001f, -10.0001f))); |
| 94 | EXPECT_EQ(Point(-10, -10), ToRoundedPoint(PointF(-10.4999f, -10.4999f))); |
| 95 | EXPECT_EQ(Point(-11, -11), ToRoundedPoint(PointF(-10.5f, -10.5f))); |
| 96 | EXPECT_EQ(Point(-11, -11), ToRoundedPoint(PointF(-10.9999f, -10.9999f))); |
| 97 | } |
| 98 | |
| 99 | TEST(PointTest, Scale) { |
| 100 | EXPECT_EQ(PointF().ToString(), ScalePoint(Point(), 2).ToString()); |
| 101 | EXPECT_EQ(PointF().ToString(), ScalePoint(Point(), 2, 2).ToString()); |
| 102 | |
| 103 | EXPECT_EQ(PointF(2, -2).ToString(), |
| 104 | ScalePoint(Point(1, -1), 2).ToString()); |
| 105 | EXPECT_EQ(PointF(2, -2).ToString(), |
| 106 | ScalePoint(Point(1, -1), 2, 2).ToString()); |
| 107 | |
| 108 | PointF zero; |
| 109 | PointF one(1, -1); |
| 110 | |
| 111 | zero.Scale(2); |
| 112 | zero.Scale(3, 1.5); |
| 113 | |
| 114 | one.Scale(2); |
| 115 | one.Scale(3, 1.5); |
| 116 | |
| 117 | EXPECT_EQ(PointF().ToString(), zero.ToString()); |
| 118 | EXPECT_EQ(PointF(6, -3).ToString(), one.ToString()); |
| 119 | } |
| 120 | |
| 121 | TEST(PointTest, ClampPoint) { |
| 122 | Point a; |
| 123 | |
| 124 | a = Point(3, 5); |
| 125 | EXPECT_EQ(Point(3, 5).ToString(), a.ToString()); |
| 126 | a.SetToMax(Point(2, 4)); |
| 127 | EXPECT_EQ(Point(3, 5).ToString(), a.ToString()); |
| 128 | a.SetToMax(Point(3, 5)); |
| 129 | EXPECT_EQ(Point(3, 5).ToString(), a.ToString()); |
| 130 | a.SetToMax(Point(4, 2)); |
| 131 | EXPECT_EQ(Point(4, 5).ToString(), a.ToString()); |
| 132 | a.SetToMax(Point(8, 10)); |
| 133 | EXPECT_EQ(Point(8, 10).ToString(), a.ToString()); |
| 134 | |
| 135 | a.SetToMin(Point(9, 11)); |
| 136 | EXPECT_EQ(Point(8, 10).ToString(), a.ToString()); |
| 137 | a.SetToMin(Point(8, 10)); |
| 138 | EXPECT_EQ(Point(8, 10).ToString(), a.ToString()); |
| 139 | a.SetToMin(Point(11, 9)); |
| 140 | EXPECT_EQ(Point(8, 9).ToString(), a.ToString()); |
| 141 | a.SetToMin(Point(7, 11)); |
| 142 | EXPECT_EQ(Point(7, 9).ToString(), a.ToString()); |
| 143 | a.SetToMin(Point(3, 5)); |
| 144 | EXPECT_EQ(Point(3, 5).ToString(), a.ToString()); |
| 145 | } |
| 146 | |
| 147 | TEST(PointTest, ClampPointF) { |
| 148 | PointF a; |
| 149 | |
| 150 | a = PointF(3.5f, 5.5f); |
| 151 | EXPECT_EQ(PointF(3.5f, 5.5f).ToString(), a.ToString()); |
| 152 | a.SetToMax(PointF(2.5f, 4.5f)); |
| 153 | EXPECT_EQ(PointF(3.5f, 5.5f).ToString(), a.ToString()); |
| 154 | a.SetToMax(PointF(3.5f, 5.5f)); |
| 155 | EXPECT_EQ(PointF(3.5f, 5.5f).ToString(), a.ToString()); |
| 156 | a.SetToMax(PointF(4.5f, 2.5f)); |
| 157 | EXPECT_EQ(PointF(4.5f, 5.5f).ToString(), a.ToString()); |
| 158 | a.SetToMax(PointF(8.5f, 10.5f)); |
| 159 | EXPECT_EQ(PointF(8.5f, 10.5f).ToString(), a.ToString()); |
| 160 | |
| 161 | a.SetToMin(PointF(9.5f, 11.5f)); |
| 162 | EXPECT_EQ(PointF(8.5f, 10.5f).ToString(), a.ToString()); |
| 163 | a.SetToMin(PointF(8.5f, 10.5f)); |
| 164 | EXPECT_EQ(PointF(8.5f, 10.5f).ToString(), a.ToString()); |
| 165 | a.SetToMin(PointF(11.5f, 9.5f)); |
| 166 | EXPECT_EQ(PointF(8.5f, 9.5f).ToString(), a.ToString()); |
| 167 | a.SetToMin(PointF(7.5f, 11.5f)); |
| 168 | EXPECT_EQ(PointF(7.5f, 9.5f).ToString(), a.ToString()); |
| 169 | a.SetToMin(PointF(3.5f, 5.5f)); |
| 170 | EXPECT_EQ(PointF(3.5f, 5.5f).ToString(), a.ToString()); |
| 171 | } |
| 172 | |
| 173 | } // namespace gfx |