1 // Copyright 2013 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/views/rect_based_targeting_utils.h" 6 7 #include "testing/gtest/include/gtest/gtest.h" 8 #include "ui/gfx/rect.h" 9 10 namespace views { 11 12 TEST(RectBasedTargetingUtils, UsePointBasedTargeting) { 13 gfx::Rect rect_1(gfx::Point(-22, 30), gfx::Size(1, 1)); 14 gfx::Rect rect_2(gfx::Point(0, 0), gfx::Size(34, 55)); 15 gfx::Rect rect_3(gfx::Point(12, 12), gfx::Size(1, 0)); 16 gfx::Rect rect_4(gfx::Point(12, 120), gfx::Size(0, 0)); 17 18 EXPECT_TRUE(UsePointBasedTargeting(rect_1)); 19 EXPECT_FALSE(UsePointBasedTargeting(rect_2)); 20 EXPECT_FALSE(UsePointBasedTargeting(rect_3)); 21 EXPECT_FALSE(UsePointBasedTargeting(rect_4)); 22 } 23 24 TEST(RectBasedTargetingUtils, PercentCoveredBy) { 25 gfx::Rect rect_1(gfx::Point(0, 0), gfx::Size(300, 120)); 26 gfx::Rect rect_2(gfx::Point(20, 10), gfx::Size(30, 90)); 27 gfx::Rect rect_3(gfx::Point(160, 50), gfx::Size(150, 85)); 28 gfx::Rect rect_4(gfx::Point(20, 55), gfx::Size(0, 15)); 29 float error = 0.001f; 30 31 // Passing in identical rectangles. 32 EXPECT_FLOAT_EQ(1.0f, PercentCoveredBy(rect_1, rect_1)); 33 34 // |rect_1| completely contains |rect_2|. 35 EXPECT_FLOAT_EQ(0.075f, PercentCoveredBy(rect_1, rect_2)); 36 EXPECT_FLOAT_EQ(1.0f, PercentCoveredBy(rect_2, rect_1)); 37 38 // |rect_2| and |rect_3| do not intersect. 39 EXPECT_FLOAT_EQ(0.0f, PercentCoveredBy(rect_2, rect_3)); 40 41 // |rect_1| and |rect_3| have a nonzero area of intersection which 42 // is smaller than the area of either rectangle. 43 EXPECT_NEAR(0.272f, PercentCoveredBy(rect_1, rect_3), error); 44 EXPECT_NEAR(0.768f, PercentCoveredBy(rect_3, rect_1), error); 45 46 // |rect_4| has no area. 47 EXPECT_FLOAT_EQ(0.0f, PercentCoveredBy(rect_2, rect_4)); 48 EXPECT_FLOAT_EQ(0.0f, PercentCoveredBy(rect_4, rect_2)); 49 } 50 51 TEST(RectBasedTargetingUtils, DistanceSquaredFromCenterToPoint) { 52 gfx::Rect rect_1(gfx::Point(0, 0), gfx::Size(10, 10)); 53 gfx::Rect rect_2(gfx::Point(20, 0), gfx::Size(80, 10)); 54 gfx::Rect rect_3(gfx::Point(0, 20), gfx::Size(10, 20)); 55 56 gfx::Point point_1(5, 5); 57 gfx::Point point_2(25, 5); 58 gfx::Point point_3(11, 15); 59 gfx::Point point_4(33, 44); 60 61 EXPECT_EQ(0, DistanceSquaredFromCenterToPoint(point_1, rect_1)); 62 EXPECT_EQ(1225, DistanceSquaredFromCenterToPoint(point_2, rect_2)); 63 EXPECT_EQ(3025, DistanceSquaredFromCenterToPoint(point_1, rect_2)); 64 EXPECT_EQ(1025, DistanceSquaredFromCenterToPoint(point_2, rect_3)); 65 EXPECT_EQ(2501, DistanceSquaredFromCenterToPoint(point_3, rect_2)); 66 EXPECT_EQ(136, DistanceSquaredFromCenterToPoint(point_3, rect_1)); 67 EXPECT_EQ(980, DistanceSquaredFromCenterToPoint(point_4, rect_3)); 68 } 69 70 } // namespace views 71
