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 "ui/gfx/point_base.h" 6 7 #include "base/basictypes.h" 8 #include "testing/gtest/include/gtest/gtest.h" 9 #include "ui/gfx/point.h" 10 #include "ui/gfx/point_conversions.h" 11 #include "ui/gfx/point_f.h" 12 13 namespace gfx { 14 15 namespace { 16 17 int TestPointF(const PointF& p) { 18 return p.x(); 19 } 20 21 } // namespace 22 23 TEST(PointTest, ToPointF) { 24 // Check that implicit conversion from integer to float compiles. 25 Point a(10, 20); 26 float x = TestPointF(a); 27 EXPECT_EQ(x, a.x()); 28 29 PointF b(10, 20); 30 EXPECT_EQ(a, b); 31 EXPECT_EQ(b, a); 32 } 33 34 TEST(PointTest, IsOrigin) { 35 EXPECT_FALSE(Point(1, 0).IsOrigin()); 36 EXPECT_FALSE(Point(0, 1).IsOrigin()); 37 EXPECT_FALSE(Point(1, 2).IsOrigin()); 38 EXPECT_FALSE(Point(-1, 0).IsOrigin()); 39 EXPECT_FALSE(Point(0, -1).IsOrigin()); 40 EXPECT_FALSE(Point(-1, -2).IsOrigin()); 41 EXPECT_TRUE(Point(0, 0).IsOrigin()); 42 43 EXPECT_FALSE(PointF(0.1f, 0).IsOrigin()); 44 EXPECT_FALSE(PointF(0, 0.1f).IsOrigin()); 45 EXPECT_FALSE(PointF(0.1f, 2).IsOrigin()); 46 EXPECT_FALSE(PointF(-0.1f, 0).IsOrigin()); 47 EXPECT_FALSE(PointF(0, -0.1f).IsOrigin()); 48 EXPECT_FALSE(PointF(-0.1f, -2).IsOrigin()); 49 EXPECT_TRUE(PointF(0, 0).IsOrigin()); 50 } 51 52 TEST(PointTest, VectorArithmetic) { 53 Point a(1, 5); 54 Vector2d v1(3, -3); 55 Vector2d v2(-8, 1); 56 57 static const struct { 58 Point expected; 59 Point actual; 60 } tests[] = { 61 { Point(4, 2), a + v1 }, 62 { Point(-2, 8), a - v1 }, 63 { a, a - v1 + v1 }, 64 { a, a + v1 - v1 }, 65 { a, a + Vector2d() }, 66 { Point(12, 1), a + v1 - v2 }, 67 { Point(-10, 9), a - v1 + v2 } 68 }; 69 70 for (size_t i = 0; i < ARRAYSIZE_UNSAFE(tests); ++i) 71 EXPECT_EQ(tests[i].expected.ToString(), tests[i].actual.ToString()); 72 } 73 74 TEST(PointTest, OffsetFromPoint) { 75 Point a(1, 5); 76 Point b(-20, 8); 77 EXPECT_EQ(Vector2d(-20 - 1, 8 - 5).ToString(), (b - a).ToString()); 78 } 79 80 TEST(PointTest, ToRoundedPoint) { 81 EXPECT_EQ(Point(0, 0), ToRoundedPoint(PointF(0, 0))); 82 EXPECT_EQ(Point(0, 0), ToRoundedPoint(PointF(0.0001f, 0.0001f))); 83 EXPECT_EQ(Point(0, 0), ToRoundedPoint(PointF(0.4999f, 0.4999f))); 84 EXPECT_EQ(Point(1, 1), ToRoundedPoint(PointF(0.5f, 0.5f))); 85 EXPECT_EQ(Point(1, 1), ToRoundedPoint(PointF(0.9999f, 0.9999f))); 86 87 EXPECT_EQ(Point(10, 10), ToRoundedPoint(PointF(10, 10))); 88 EXPECT_EQ(Point(10, 10), ToRoundedPoint(PointF(10.0001f, 10.0001f))); 89 EXPECT_EQ(Point(10, 10), ToRoundedPoint(PointF(10.4999f, 10.4999f))); 90 EXPECT_EQ(Point(11, 11), ToRoundedPoint(PointF(10.5f, 10.5f))); 91 EXPECT_EQ(Point(11, 11), ToRoundedPoint(PointF(10.9999f, 10.9999f))); 92 93 EXPECT_EQ(Point(-10, -10), ToRoundedPoint(PointF(-10, -10))); 94 EXPECT_EQ(Point(-10, -10), ToRoundedPoint(PointF(-10.0001f, -10.0001f))); 95 EXPECT_EQ(Point(-10, -10), ToRoundedPoint(PointF(-10.4999f, -10.4999f))); 96 EXPECT_EQ(Point(-11, -11), ToRoundedPoint(PointF(-10.5f, -10.5f))); 97 EXPECT_EQ(Point(-11, -11), ToRoundedPoint(PointF(-10.9999f, -10.9999f))); 98 } 99 100 TEST(PointTest, Scale) { 101 EXPECT_EQ(PointF().ToString(), ScalePoint(Point(), 2).ToString()); 102 EXPECT_EQ(PointF().ToString(), ScalePoint(Point(), 2, 2).ToString()); 103 104 EXPECT_EQ(PointF(2, -2).ToString(), 105 ScalePoint(Point(1, -1), 2).ToString()); 106 EXPECT_EQ(PointF(2, -2).ToString(), 107 ScalePoint(Point(1, -1), 2, 2).ToString()); 108 109 PointF zero; 110 PointF one(1, -1); 111 112 zero.Scale(2); 113 zero.Scale(3, 1.5); 114 115 one.Scale(2); 116 one.Scale(3, 1.5); 117 118 EXPECT_EQ(PointF().ToString(), zero.ToString()); 119 EXPECT_EQ(PointF(6, -3).ToString(), one.ToString()); 120 } 121 122 TEST(PointTest, ClampPoint) { 123 Point a; 124 125 a = Point(3, 5); 126 EXPECT_EQ(Point(3, 5).ToString(), a.ToString()); 127 a.SetToMax(Point(2, 4)); 128 EXPECT_EQ(Point(3, 5).ToString(), a.ToString()); 129 a.SetToMax(Point(3, 5)); 130 EXPECT_EQ(Point(3, 5).ToString(), a.ToString()); 131 a.SetToMax(Point(4, 2)); 132 EXPECT_EQ(Point(4, 5).ToString(), a.ToString()); 133 a.SetToMax(Point(8, 10)); 134 EXPECT_EQ(Point(8, 10).ToString(), a.ToString()); 135 136 a.SetToMin(Point(9, 11)); 137 EXPECT_EQ(Point(8, 10).ToString(), a.ToString()); 138 a.SetToMin(Point(8, 10)); 139 EXPECT_EQ(Point(8, 10).ToString(), a.ToString()); 140 a.SetToMin(Point(11, 9)); 141 EXPECT_EQ(Point(8, 9).ToString(), a.ToString()); 142 a.SetToMin(Point(7, 11)); 143 EXPECT_EQ(Point(7, 9).ToString(), a.ToString()); 144 a.SetToMin(Point(3, 5)); 145 EXPECT_EQ(Point(3, 5).ToString(), a.ToString()); 146 } 147 148 TEST(PointTest, ClampPointF) { 149 PointF a; 150 151 a = PointF(3.5f, 5.5f); 152 EXPECT_EQ(PointF(3.5f, 5.5f).ToString(), a.ToString()); 153 a.SetToMax(PointF(2.5f, 4.5f)); 154 EXPECT_EQ(PointF(3.5f, 5.5f).ToString(), a.ToString()); 155 a.SetToMax(PointF(3.5f, 5.5f)); 156 EXPECT_EQ(PointF(3.5f, 5.5f).ToString(), a.ToString()); 157 a.SetToMax(PointF(4.5f, 2.5f)); 158 EXPECT_EQ(PointF(4.5f, 5.5f).ToString(), a.ToString()); 159 a.SetToMax(PointF(8.5f, 10.5f)); 160 EXPECT_EQ(PointF(8.5f, 10.5f).ToString(), a.ToString()); 161 162 a.SetToMin(PointF(9.5f, 11.5f)); 163 EXPECT_EQ(PointF(8.5f, 10.5f).ToString(), a.ToString()); 164 a.SetToMin(PointF(8.5f, 10.5f)); 165 EXPECT_EQ(PointF(8.5f, 10.5f).ToString(), a.ToString()); 166 a.SetToMin(PointF(11.5f, 9.5f)); 167 EXPECT_EQ(PointF(8.5f, 9.5f).ToString(), a.ToString()); 168 a.SetToMin(PointF(7.5f, 11.5f)); 169 EXPECT_EQ(PointF(7.5f, 9.5f).ToString(), a.ToString()); 170 a.SetToMin(PointF(3.5f, 5.5f)); 171 EXPECT_EQ(PointF(3.5f, 5.5f).ToString(), a.ToString()); 172 } 173 174 } // namespace gfx 175
