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- // Copyright 2022 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #include <stddef.h>
- #include "base/cxx17_backports.h"
- #include "build/build_config.h"
- #include "testing/gtest/include/gtest/gtest.h"
- #include "ui/gfx/geometry/quad_f.h"
- #include "ui/gfx/geometry/rect_f.h"
- namespace gfx {
- TEST(QuadFTest, Construction) {
- // Verify constructors.
- PointF a(1, 1);
- PointF b(2, 1);
- PointF c(2, 2);
- PointF d(1, 2);
- PointF e;
- QuadF q1;
- QuadF q2(e, e, e, e);
- QuadF q3(a, b, c, d);
- QuadF q4(BoundingRect(a, c));
- EXPECT_EQ(q1, q2);
- EXPECT_EQ(q3, q4);
- // Verify getters.
- EXPECT_EQ(q3.p1(), a);
- EXPECT_EQ(q3.p2(), b);
- EXPECT_EQ(q3.p3(), c);
- EXPECT_EQ(q3.p4(), d);
- // Verify setters.
- q3.set_p1(b);
- q3.set_p2(c);
- q3.set_p3(d);
- q3.set_p4(a);
- EXPECT_EQ(q3.p1(), b);
- EXPECT_EQ(q3.p2(), c);
- EXPECT_EQ(q3.p3(), d);
- EXPECT_EQ(q3.p4(), a);
- // Verify operator=(Rect)
- EXPECT_NE(q1, q4);
- q1 = BoundingRect(a, c);
- EXPECT_EQ(q1, q4);
- // Verify operator=(Quad)
- EXPECT_NE(q1, q3);
- q1 = q3;
- EXPECT_EQ(q1, q3);
- }
- TEST(QuadFTest, AddingVectors) {
- PointF a(1, 1);
- PointF b(2, 1);
- PointF c(2, 2);
- PointF d(1, 2);
- Vector2dF v(3.5f, -2.5f);
- QuadF q1(a, b, c, d);
- QuadF added = q1 + v;
- q1 += v;
- QuadF expected1(PointF(4.5f, -1.5f), PointF(5.5f, -1.5f), PointF(5.5f, -0.5f),
- PointF(4.5f, -0.5f));
- EXPECT_EQ(expected1, added);
- EXPECT_EQ(expected1, q1);
- QuadF q2(a, b, c, d);
- QuadF subtracted = q2 - v;
- q2 -= v;
- QuadF expected2(PointF(-2.5f, 3.5f), PointF(-1.5f, 3.5f), PointF(-1.5f, 4.5f),
- PointF(-2.5f, 4.5f));
- EXPECT_EQ(expected2, subtracted);
- EXPECT_EQ(expected2, q2);
- QuadF q3(a, b, c, d);
- q3 += v;
- q3 -= v;
- EXPECT_EQ(QuadF(a, b, c, d), q3);
- EXPECT_EQ(q3, (q3 + v - v));
- }
- TEST(QuadFTest, IsRectilinear) {
- PointF a(1, 1);
- PointF b(2, 1);
- PointF c(2, 2);
- PointF d(1, 2);
- Vector2dF v(3.5f, -2.5f);
- EXPECT_TRUE(QuadF().IsRectilinear());
- EXPECT_TRUE(QuadF(a, b, c, d).IsRectilinear());
- EXPECT_TRUE((QuadF(a, b, c, d) + v).IsRectilinear());
- float epsilon = std::numeric_limits<float>::epsilon();
- PointF a2(1 + epsilon / 2, 1 + epsilon / 2);
- PointF b2(2 + epsilon / 2, 1 + epsilon / 2);
- PointF c2(2 + epsilon / 2, 2 + epsilon / 2);
- PointF d2(1 + epsilon / 2, 2 + epsilon / 2);
- EXPECT_TRUE(QuadF(a2, b, c, d).IsRectilinear());
- EXPECT_TRUE((QuadF(a2, b, c, d) + v).IsRectilinear());
- EXPECT_TRUE(QuadF(a, b2, c, d).IsRectilinear());
- EXPECT_TRUE((QuadF(a, b2, c, d) + v).IsRectilinear());
- EXPECT_TRUE(QuadF(a, b, c2, d).IsRectilinear());
- EXPECT_TRUE((QuadF(a, b, c2, d) + v).IsRectilinear());
- EXPECT_TRUE(QuadF(a, b, c, d2).IsRectilinear());
- EXPECT_TRUE((QuadF(a, b, c, d2) + v).IsRectilinear());
- struct {
- PointF a_off, b_off, c_off, d_off;
- } tests[] = {{PointF(1, 1.00001f), PointF(2, 1.00001f), PointF(2, 2.00001f),
- PointF(1, 2.00001f)},
- {PointF(1.00001f, 1), PointF(2.00001f, 1), PointF(2.00001f, 2),
- PointF(1.00001f, 2)},
- {PointF(1.00001f, 1.00001f), PointF(2.00001f, 1.00001f),
- PointF(2.00001f, 2.00001f), PointF(1.00001f, 2.00001f)},
- {PointF(1, 0.99999f), PointF(2, 0.99999f), PointF(2, 1.99999f),
- PointF(1, 1.99999f)},
- {PointF(0.99999f, 1), PointF(1.99999f, 1), PointF(1.99999f, 2),
- PointF(0.99999f, 2)},
- {PointF(0.99999f, 0.99999f), PointF(1.99999f, 0.99999f),
- PointF(1.99999f, 1.99999f), PointF(0.99999f, 1.99999f)}};
- for (const auto& test : tests) {
- PointF a_off = test.a_off;
- PointF b_off = test.b_off;
- PointF c_off = test.c_off;
- PointF d_off = test.d_off;
- EXPECT_FALSE(QuadF(a_off, b, c, d).IsRectilinear());
- EXPECT_FALSE((QuadF(a_off, b, c, d) + v).IsRectilinear());
- EXPECT_FALSE(QuadF(a, b_off, c, d).IsRectilinear());
- EXPECT_FALSE((QuadF(a, b_off, c, d) + v).IsRectilinear());
- EXPECT_FALSE(QuadF(a, b, c_off, d).IsRectilinear());
- EXPECT_FALSE((QuadF(a, b, c_off, d) + v).IsRectilinear());
- EXPECT_FALSE(QuadF(a, b, c, d_off).IsRectilinear());
- EXPECT_FALSE((QuadF(a, b, c, d_off) + v).IsRectilinear());
- EXPECT_FALSE(QuadF(a_off, b, c_off, d).IsRectilinear());
- EXPECT_FALSE((QuadF(a_off, b, c_off, d) + v).IsRectilinear());
- EXPECT_FALSE(QuadF(a, b_off, c, d_off).IsRectilinear());
- EXPECT_FALSE((QuadF(a, b_off, c, d_off) + v).IsRectilinear());
- EXPECT_FALSE(QuadF(a, b_off, c_off, d_off).IsRectilinear());
- EXPECT_FALSE((QuadF(a, b_off, c_off, d_off) + v).IsRectilinear());
- EXPECT_FALSE(QuadF(a_off, b, c_off, d_off).IsRectilinear());
- EXPECT_FALSE((QuadF(a_off, b, c_off, d_off) + v).IsRectilinear());
- EXPECT_FALSE(QuadF(a_off, b_off, c, d_off).IsRectilinear());
- EXPECT_FALSE((QuadF(a_off, b_off, c, d_off) + v).IsRectilinear());
- EXPECT_FALSE(QuadF(a_off, b_off, c_off, d).IsRectilinear());
- EXPECT_FALSE((QuadF(a_off, b_off, c_off, d) + v).IsRectilinear());
- EXPECT_TRUE(QuadF(a_off, b_off, c_off, d_off).IsRectilinear());
- EXPECT_TRUE((QuadF(a_off, b_off, c_off, d_off) + v).IsRectilinear());
- }
- }
- TEST(QuadFTest, IsCounterClockwise) {
- PointF a1(1, 1);
- PointF b1(2, 1);
- PointF c1(2, 2);
- PointF d1(1, 2);
- EXPECT_FALSE(QuadF(a1, b1, c1, d1).IsCounterClockwise());
- EXPECT_FALSE(QuadF(b1, c1, d1, a1).IsCounterClockwise());
- EXPECT_TRUE(QuadF(a1, d1, c1, b1).IsCounterClockwise());
- EXPECT_TRUE(QuadF(c1, b1, a1, d1).IsCounterClockwise());
- // Slightly more complicated quads should work just as easily.
- PointF a2(1.3f, 1.4f);
- PointF b2(-0.7f, 4.9f);
- PointF c2(1.8f, 6.2f);
- PointF d2(2.1f, 1.6f);
- EXPECT_TRUE(QuadF(a2, b2, c2, d2).IsCounterClockwise());
- EXPECT_TRUE(QuadF(b2, c2, d2, a2).IsCounterClockwise());
- EXPECT_FALSE(QuadF(a2, d2, c2, b2).IsCounterClockwise());
- EXPECT_FALSE(QuadF(c2, b2, a2, d2).IsCounterClockwise());
- // Quads with 3 collinear points should work correctly, too.
- PointF a3(0, 0);
- PointF b3(1, 0);
- PointF c3(2, 0);
- PointF d3(1, 1);
- EXPECT_FALSE(QuadF(a3, b3, c3, d3).IsCounterClockwise());
- EXPECT_FALSE(QuadF(b3, c3, d3, a3).IsCounterClockwise());
- EXPECT_TRUE(QuadF(a3, d3, c3, b3).IsCounterClockwise());
- // The next expectation in particular would fail for an implementation
- // that incorrectly uses only a cross product of the first 3 vertices.
- EXPECT_TRUE(QuadF(c3, b3, a3, d3).IsCounterClockwise());
- // Non-convex quads should work correctly, too.
- PointF a4(0, 0);
- PointF b4(1, 1);
- PointF c4(2, 0);
- PointF d4(1, 3);
- EXPECT_FALSE(QuadF(a4, b4, c4, d4).IsCounterClockwise());
- EXPECT_FALSE(QuadF(b4, c4, d4, a4).IsCounterClockwise());
- EXPECT_TRUE(QuadF(a4, d4, c4, b4).IsCounterClockwise());
- EXPECT_TRUE(QuadF(c4, b4, a4, d4).IsCounterClockwise());
- // A quad with huge coordinates should not fail this check due to
- // single-precision overflow.
- PointF a5(1e30f, 1e30f);
- PointF b5(1e35f, 1e30f);
- PointF c5(1e35f, 1e35f);
- PointF d5(1e30f, 1e35f);
- EXPECT_FALSE(QuadF(a5, b5, c5, d5).IsCounterClockwise());
- EXPECT_FALSE(QuadF(b5, c5, d5, a5).IsCounterClockwise());
- EXPECT_TRUE(QuadF(a5, d5, c5, b5).IsCounterClockwise());
- EXPECT_TRUE(QuadF(c5, b5, a5, d5).IsCounterClockwise());
- }
- TEST(QuadFTest, BoundingBox) {
- RectF r(3.2f, 5.4f, 7.007f, 12.01f);
- EXPECT_EQ(r, QuadF(r).BoundingBox());
- PointF a(1.3f, 1.4f);
- PointF b(-0.7f, 4.9f);
- PointF c(1.8f, 6.2f);
- PointF d(2.1f, 1.6f);
- float left = -0.7f;
- float top = 1.4f;
- float right = 2.1f;
- float bottom = 6.2f;
- EXPECT_EQ(RectF(left, top, right - left, bottom - top),
- QuadF(a, b, c, d).BoundingBox());
- }
- TEST(QuadFTest, ContainsPoint) {
- PointF a(1.3f, 1.4f);
- PointF b(-0.8f, 4.4f);
- PointF c(1.8f, 6.1f);
- PointF d(2.1f, 1.6f);
- Vector2dF epsilon_x(2 * std::numeric_limits<float>::epsilon(), 0);
- Vector2dF epsilon_y(0, 2 * std::numeric_limits<float>::epsilon());
- Vector2dF ac_center = c - a;
- ac_center.Scale(0.5f);
- Vector2dF bd_center = d - b;
- bd_center.Scale(0.5f);
- EXPECT_TRUE(QuadF(a, b, c, d).Contains(a + ac_center));
- EXPECT_TRUE(QuadF(a, b, c, d).Contains(b + bd_center));
- EXPECT_TRUE(QuadF(a, b, c, d).Contains(c - ac_center));
- EXPECT_TRUE(QuadF(a, b, c, d).Contains(d - bd_center));
- EXPECT_FALSE(QuadF(a, b, c, d).Contains(a - ac_center));
- EXPECT_FALSE(QuadF(a, b, c, d).Contains(b - bd_center));
- EXPECT_FALSE(QuadF(a, b, c, d).Contains(c + ac_center));
- EXPECT_FALSE(QuadF(a, b, c, d).Contains(d + bd_center));
- EXPECT_TRUE(QuadF(a, b, c, d).Contains(a));
- EXPECT_FALSE(QuadF(a, b, c, d).Contains(a - epsilon_x));
- EXPECT_FALSE(QuadF(a, b, c, d).Contains(a - epsilon_y));
- EXPECT_FALSE(QuadF(a, b, c, d).Contains(a + epsilon_x));
- EXPECT_TRUE(QuadF(a, b, c, d).Contains(a + epsilon_y));
- EXPECT_TRUE(QuadF(a, b, c, d).Contains(b));
- EXPECT_FALSE(QuadF(a, b, c, d).Contains(b - epsilon_x));
- EXPECT_FALSE(QuadF(a, b, c, d).Contains(b - epsilon_y));
- EXPECT_TRUE(QuadF(a, b, c, d).Contains(b + epsilon_x));
- EXPECT_FALSE(QuadF(a, b, c, d).Contains(b + epsilon_y));
- EXPECT_TRUE(QuadF(a, b, c, d).Contains(c));
- EXPECT_FALSE(QuadF(a, b, c, d).Contains(c - epsilon_x));
- EXPECT_TRUE(QuadF(a, b, c, d).Contains(c - epsilon_y));
- EXPECT_FALSE(QuadF(a, b, c, d).Contains(c + epsilon_x));
- EXPECT_FALSE(QuadF(a, b, c, d).Contains(c + epsilon_y));
- EXPECT_TRUE(QuadF(a, b, c, d).Contains(d));
- EXPECT_TRUE(QuadF(a, b, c, d).Contains(d - epsilon_x));
- EXPECT_FALSE(QuadF(a, b, c, d).Contains(d - epsilon_y));
- EXPECT_FALSE(QuadF(a, b, c, d).Contains(d + epsilon_x));
- EXPECT_FALSE(QuadF(a, b, c, d).Contains(d + epsilon_y));
- // Test a simple square.
- PointF s1(-1, -1);
- PointF s2(1, -1);
- PointF s3(1, 1);
- PointF s4(-1, 1);
- // Top edge.
- EXPECT_FALSE(QuadF(s1, s2, s3, s4).Contains(PointF(-1.1f, -1.0f)));
- EXPECT_TRUE(QuadF(s1, s2, s3, s4).Contains(PointF(-1.0f, -1.0f)));
- EXPECT_TRUE(QuadF(s1, s2, s3, s4).Contains(PointF(0.0f, -1.0f)));
- EXPECT_TRUE(QuadF(s1, s2, s3, s4).Contains(PointF(1.0f, -1.0f)));
- EXPECT_FALSE(QuadF(s1, s2, s3, s4).Contains(PointF(1.1f, -1.0f)));
- // Bottom edge.
- EXPECT_FALSE(QuadF(s1, s2, s3, s4).Contains(PointF(-1.1f, 1.0f)));
- EXPECT_TRUE(QuadF(s1, s2, s3, s4).Contains(PointF(-1.0f, 1.0f)));
- EXPECT_TRUE(QuadF(s1, s2, s3, s4).Contains(PointF(0.0f, 1.0f)));
- EXPECT_TRUE(QuadF(s1, s2, s3, s4).Contains(PointF(1.0f, 1.0f)));
- EXPECT_FALSE(QuadF(s1, s2, s3, s4).Contains(PointF(1.1f, 1.0f)));
- // Left edge.
- EXPECT_FALSE(QuadF(s1, s2, s3, s4).Contains(PointF(-1.0f, -1.1f)));
- EXPECT_TRUE(QuadF(s1, s2, s3, s4).Contains(PointF(-1.0f, -1.0f)));
- EXPECT_TRUE(QuadF(s1, s2, s3, s4).Contains(PointF(-1.0f, 0.0f)));
- EXPECT_TRUE(QuadF(s1, s2, s3, s4).Contains(PointF(-1.0f, 1.0f)));
- EXPECT_FALSE(QuadF(s1, s2, s3, s4).Contains(PointF(-1.0f, 1.1f)));
- // Right edge.
- EXPECT_FALSE(QuadF(s1, s2, s3, s4).Contains(PointF(1.0f, -1.1f)));
- EXPECT_TRUE(QuadF(s1, s2, s3, s4).Contains(PointF(1.0f, -1.0f)));
- EXPECT_TRUE(QuadF(s1, s2, s3, s4).Contains(PointF(1.0f, 0.0f)));
- EXPECT_TRUE(QuadF(s1, s2, s3, s4).Contains(PointF(1.0f, 1.0f)));
- EXPECT_FALSE(QuadF(s1, s2, s3, s4).Contains(PointF(1.0f, 1.1f)));
- // Centered inside.
- EXPECT_TRUE(QuadF(s1, s2, s3, s4).Contains(PointF(0, 0)));
- // Centered outside.
- EXPECT_FALSE(QuadF(s1, s2, s3, s4).Contains(PointF(-1.1f, 0)));
- EXPECT_FALSE(QuadF(s1, s2, s3, s4).Contains(PointF(1.1f, 0)));
- EXPECT_FALSE(QuadF(s1, s2, s3, s4).Contains(PointF(0, -1.1f)));
- EXPECT_FALSE(QuadF(s1, s2, s3, s4).Contains(PointF(0, 1.1f)));
- }
- TEST(QuadFTest, ContainsQuad) {
- QuadF quad(PointF(10, 0), PointF(20, 10), PointF(10, 20), PointF(0, 10));
- EXPECT_TRUE(quad.ContainsQuad(quad));
- EXPECT_TRUE(QuadF(quad.BoundingBox()).ContainsQuad(quad));
- EXPECT_FALSE(quad.ContainsQuad(QuadF(quad.BoundingBox())));
- EXPECT_FALSE(quad.ContainsQuad(QuadF(RectF(4.9, 4.9, 9.8, 9.8))));
- EXPECT_TRUE(quad.ContainsQuad(QuadF(RectF(5.1, 5.1, 9.8, 9.8))));
- EXPECT_FALSE(quad.ContainsQuad(QuadF(RectF(5.1, 5.1, 11, 9.8))));
- EXPECT_FALSE(quad.ContainsQuad(QuadF(RectF(5.1, 5.1, 9.8, 11))));
- EXPECT_FALSE(quad.ContainsQuad(quad + gfx::Vector2dF(0.1, 0)));
- EXPECT_FALSE(quad.ContainsQuad(quad + gfx::Vector2dF(0, 0.1)));
- EXPECT_FALSE(quad.ContainsQuad(quad - gfx::Vector2dF(0.1, 0)));
- EXPECT_FALSE(quad.ContainsQuad(quad - gfx::Vector2dF(0, 0.1)));
- }
- TEST(QuadFTest, Scale) {
- PointF a(1.3f, 1.4f);
- PointF b(-0.8f, 4.4f);
- PointF c(1.8f, 6.1f);
- PointF d(2.1f, 1.6f);
- QuadF q1(a, b, c, d);
- q1.Scale(1.5f);
- PointF a_scaled = ScalePoint(a, 1.5f);
- PointF b_scaled = ScalePoint(b, 1.5f);
- PointF c_scaled = ScalePoint(c, 1.5f);
- PointF d_scaled = ScalePoint(d, 1.5f);
- EXPECT_EQ(q1, QuadF(a_scaled, b_scaled, c_scaled, d_scaled));
- QuadF q2;
- q2.Scale(1.5f);
- EXPECT_EQ(q2, q2);
- }
- TEST(QuadFTest, IntersectsRectClockwise) {
- QuadF quad(PointF(10, 0), PointF(20, 10), PointF(10, 20), PointF(0, 10));
- // Top-left.
- EXPECT_FALSE(quad.IntersectsRect(RectF(0, 0, 4.9, 4.9)));
- EXPECT_TRUE(quad.IntersectsRect(RectF(0, 0, 4.9, 6)));
- EXPECT_TRUE(quad.IntersectsRect(RectF(0, 0, 5.1, 5.1)));
- EXPECT_TRUE(quad.IntersectsRect(RectF(0, 0, 6, 4.9)));
- EXPECT_FALSE(quad.IntersectsRect(RectF(0, 0, 2, 6)));
- EXPECT_FALSE(quad.IntersectsRect(RectF(0, 0, 6, 2)));
- // Top.
- EXPECT_FALSE(quad.IntersectsRect(RectF(0, -30, 20, 2)));
- // TODO(crbug.com/1283709): For now the result is true.
- // EXPECT_FALSE(quad.IntersectsRect(RectF(0, -5, 20, 2)));
- // EXPECT_FALSE(quad.IntersectsRect(RectF(0, -5, 20, 4.9)));
- EXPECT_TRUE(quad.IntersectsRect(RectF(0, -5, 20, 5.1)));
- // Top-right.
- EXPECT_FALSE(quad.IntersectsRect(RectF(15.1, 0, 10, 4.9)));
- EXPECT_TRUE(quad.IntersectsRect(RectF(15.1, 0, 10, 6)));
- EXPECT_TRUE(quad.IntersectsRect(RectF(14.9, 0, 10, 5.1)));
- EXPECT_TRUE(quad.IntersectsRect(RectF(14, 0, 10, 4.9)));
- EXPECT_FALSE(quad.IntersectsRect(RectF(18, 0, 10, 6)));
- EXPECT_FALSE(quad.IntersectsRect(RectF(14, 0, 10, 2)));
- // Right.
- EXPECT_FALSE(quad.IntersectsRect(RectF(50, 0, 2, 20)));
- // TODO(crbug.com/1283709): For now the result is true.
- // EXPECT_FALSE(quad.IntersectsRect(RectF(22, 0, 2, 20)));
- // EXPECT_FALSE(quad.IntersectsRect(RectF(20.1, 0, 2, 20)));
- EXPECT_TRUE(quad.IntersectsRect(RectF(19.9, 0, 2, 20)));
- // Bottom-right.
- EXPECT_FALSE(quad.IntersectsRect(RectF(15.1, 15.1, 10, 10)));
- EXPECT_TRUE(quad.IntersectsRect(RectF(15.1, 14, 10, 10)));
- EXPECT_TRUE(quad.IntersectsRect(RectF(14.9, 14.9, 10, 10)));
- EXPECT_TRUE(quad.IntersectsRect(RectF(14, 15.1, 10, 10)));
- EXPECT_FALSE(quad.IntersectsRect(RectF(18, 14, 10, 10)));
- EXPECT_FALSE(quad.IntersectsRect(RectF(14, 18, 10, 10)));
- // Bottom.
- EXPECT_FALSE(quad.IntersectsRect(RectF(0, 50, 20, 2)));
- // TODO(crbug.com/1283709): For now the result is true.
- // EXPECT_FALSE(quad.IntersectsRect(RectF(0, 22, 20, 2)));
- // EXPECT_FALSE(quad.IntersectsRect(RectF(0, 20.1, 20, 2)));
- EXPECT_TRUE(quad.IntersectsRect(RectF(0, 19.9, 20, 2)));
- // Bottom-left.
- EXPECT_FALSE(quad.IntersectsRect(RectF(0, 15.1, 4.9, 10)));
- EXPECT_TRUE(quad.IntersectsRect(RectF(0, 15.1, 6, 10)));
- EXPECT_TRUE(quad.IntersectsRect(RectF(0, 14.9, 5.1, 10)));
- EXPECT_TRUE(quad.IntersectsRect(RectF(0, 14, 4.9, 10)));
- EXPECT_FALSE(quad.IntersectsRect(RectF(0, 18, 6, 10)));
- EXPECT_FALSE(quad.IntersectsRect(RectF(0, 14, 2, 10)));
- // Left.
- EXPECT_FALSE(quad.IntersectsRect(RectF(-30, 0, 2, 20)));
- // TODO(crbug.com/1283709): For now the result is true.
- // EXPECT_FALSE(quad.IntersectsRect(RectF(-5, 0, 2, 20)));
- // EXPECT_FALSE(quad.IntersectsRect(RectF(-5, 0, 4.9, 20)));
- EXPECT_TRUE(quad.IntersectsRect(RectF(-5, 0, 5.1, 20)));
- // Cover.
- EXPECT_TRUE(quad.IntersectsRect(RectF(0, 0, 20, 20)));
- }
- TEST(QuadFTest, IntersectsRectCounterClockwise) {
- QuadF quad(PointF(10, 0), PointF(0, 10), PointF(10, 20), PointF(20, 10));
- // Top-left.
- EXPECT_FALSE(quad.IntersectsRect(RectF(0, 0, 4.9, 4.9)));
- EXPECT_TRUE(quad.IntersectsRect(RectF(0, 0, 4.9, 6)));
- EXPECT_TRUE(quad.IntersectsRect(RectF(0, 0, 5.1, 5.1)));
- EXPECT_TRUE(quad.IntersectsRect(RectF(0, 0, 6, 4.9)));
- EXPECT_FALSE(quad.IntersectsRect(RectF(0, 0, 2, 6)));
- EXPECT_FALSE(quad.IntersectsRect(RectF(0, 0, 6, 2)));
- // Top.
- EXPECT_FALSE(quad.IntersectsRect(RectF(0, -30, 20, 2)));
- // TODO(crbug.com/1283709): For now the result is true.
- // EXPECT_FALSE(quad.IntersectsRect(RectF(0, -5, 20, 2)));
- // EXPECT_FALSE(quad.IntersectsRect(RectF(0, -5, 20, 4.9)));
- EXPECT_TRUE(quad.IntersectsRect(RectF(0, -5, 20, 5.1)));
- // Top-right.
- EXPECT_FALSE(quad.IntersectsRect(RectF(15.1, 0, 10, 4.9)));
- EXPECT_TRUE(quad.IntersectsRect(RectF(15.1, 0, 10, 6)));
- EXPECT_TRUE(quad.IntersectsRect(RectF(14.9, 0, 10, 5.1)));
- EXPECT_TRUE(quad.IntersectsRect(RectF(14, 0, 10, 4.9)));
- EXPECT_FALSE(quad.IntersectsRect(RectF(18, 0, 10, 6)));
- EXPECT_FALSE(quad.IntersectsRect(RectF(14, 0, 10, 2)));
- // Right.
- EXPECT_FALSE(quad.IntersectsRect(RectF(50, 0, 2, 20)));
- // TODO(crbug.com/1283709): For now the result is true.
- // EXPECT_FALSE(quad.IntersectsRect(RectF(22, 0, 2, 20)));
- // EXPECT_FALSE(quad.IntersectsRect(RectF(20.1, 0, 2, 20)));
- EXPECT_TRUE(quad.IntersectsRect(RectF(19.9, 0, 2, 20)));
- // Bottom-right.
- EXPECT_FALSE(quad.IntersectsRect(RectF(15.1, 15.1, 10, 10)));
- EXPECT_TRUE(quad.IntersectsRect(RectF(15.1, 14, 10, 10)));
- EXPECT_TRUE(quad.IntersectsRect(RectF(14.9, 14.9, 10, 10)));
- EXPECT_TRUE(quad.IntersectsRect(RectF(14, 15.1, 10, 10)));
- EXPECT_FALSE(quad.IntersectsRect(RectF(18, 14, 10, 10)));
- EXPECT_FALSE(quad.IntersectsRect(RectF(14, 18, 10, 10)));
- // Bottom.
- EXPECT_FALSE(quad.IntersectsRect(RectF(0, 50, 20, 2)));
- // TODO(crbug.com/1283709): For now the result is true.
- // EXPECT_FALSE(quad.IntersectsRect(RectF(0, 22, 20, 2)));
- // EXPECT_FALSE(quad.IntersectsRect(RectF(0, 20.1, 20, 2)));
- EXPECT_TRUE(quad.IntersectsRect(RectF(0, 19.9, 20, 2)));
- // Bottom-left.
- EXPECT_FALSE(quad.IntersectsRect(RectF(0, 15.1, 4.9, 10)));
- EXPECT_TRUE(quad.IntersectsRect(RectF(0, 15.1, 6, 10)));
- EXPECT_TRUE(quad.IntersectsRect(RectF(0, 14.9, 5.1, 10)));
- EXPECT_TRUE(quad.IntersectsRect(RectF(0, 14, 4.9, 10)));
- EXPECT_FALSE(quad.IntersectsRect(RectF(0, 18, 6, 10)));
- EXPECT_FALSE(quad.IntersectsRect(RectF(0, 14, 2, 10)));
- // Left.
- EXPECT_FALSE(quad.IntersectsRect(RectF(-30, 0, 2, 20)));
- // TODO(crbug.com/1283709): For now the result is true.
- // EXPECT_FALSE(quad.IntersectsRect(RectF(-5, 0, 2, 20)));
- // EXPECT_FALSE(quad.IntersectsRect(RectF(-5, 0, 4.9, 20)));
- EXPECT_TRUE(quad.IntersectsRect(RectF(-5, 0, 5.1, 20)));
- // Cover.
- EXPECT_TRUE(quad.IntersectsRect(RectF(0, 0, 20, 20)));
- }
- TEST(QuadFTest, RectIntersectionIsInclusive) {
- // A rectilinear quad at (10, 10) with dimensions 10x10.
- QuadF quad(RectF(10, 10, 10, 10));
- // A rect fully contained in the quad should intersect.
- EXPECT_TRUE(quad.IntersectsRect(RectF(11, 11, 8, 8)));
- // A point fully contained in the quad should intersect.
- EXPECT_TRUE(quad.IntersectsRect(RectF(11, 11, 0, 0)));
- // A rect that touches the quad only at the point (10, 10) should intersect.
- EXPECT_TRUE(quad.IntersectsRect(RectF(9, 9, 1, 1)));
- // A rect that touches the quad only on the left edge should intersect.
- EXPECT_TRUE(quad.IntersectsRect(RectF(9, 11, 1, 1)));
- // A rect that touches the quad only on the top edge should intersect.
- EXPECT_TRUE(quad.IntersectsRect(RectF(11, 9, 1, 1)));
- // A rect that touches the quad only on the right edge should intersect.
- EXPECT_TRUE(quad.IntersectsRect(RectF(20, 11, 1, 1)));
- // A rect that touches the quad only on the bottom edge should intersect.
- EXPECT_TRUE(quad.IntersectsRect(RectF(11, 20, 1, 1)));
- // A rect that is fully outside the quad should not intersect.
- EXPECT_FALSE(quad.IntersectsRect(RectF(8, 8, 1, 1)));
- // A point that is fully outside the quad should not intersect.
- EXPECT_FALSE(quad.IntersectsRect(RectF(9, 9, 0, 0)));
- }
- TEST(QuadFTest, IntersectsEllipseClockWise) {
- QuadF quad(PointF(10, 0), PointF(20, 10), PointF(10, 20), PointF(0, 10));
- // Top-left.
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(0, 0), SizeF(7, 7)));
- EXPECT_TRUE(quad.IntersectsEllipse(PointF(0, 0), SizeF(6, 9)));
- EXPECT_TRUE(quad.IntersectsEllipse(PointF(0, 0), SizeF(7.1, 7.1)));
- EXPECT_TRUE(quad.IntersectsEllipse(PointF(0, 0), SizeF(9, 6)));
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(0, 0), SizeF(2, 8)));
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(0, 0), SizeF(8, 2)));
- // Top.
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(10, -5), SizeF(20, 2)));
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(10, -5), SizeF(20, 4.9)));
- EXPECT_TRUE(quad.IntersectsEllipse(PointF(10, -5), SizeF(20, 5.1)));
- // Top-right.
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(20, 0), SizeF(7, 7)));
- EXPECT_TRUE(quad.IntersectsEllipse(PointF(20, 0), SizeF(6, 9)));
- EXPECT_TRUE(quad.IntersectsEllipse(PointF(20, 0), SizeF(7.1, 7.1)));
- EXPECT_TRUE(quad.IntersectsEllipse(PointF(20, 0), SizeF(9, 6)));
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(20, 0), SizeF(2, 8)));
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(20, 0), SizeF(8, 2)));
- // Right.
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(25, 10), SizeF(2, 20)));
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(25, 10), SizeF(4.9, 20)));
- EXPECT_TRUE(quad.IntersectsEllipse(PointF(25, 10), SizeF(5.1, 20)));
- // Bottom-right.
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(20, 20), SizeF(7, 7)));
- EXPECT_TRUE(quad.IntersectsEllipse(PointF(20, 20), SizeF(6, 9)));
- EXPECT_TRUE(quad.IntersectsEllipse(PointF(20, 20), SizeF(7.1, 7.1)));
- EXPECT_TRUE(quad.IntersectsEllipse(PointF(20, 20), SizeF(9, 6)));
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(20, 20), SizeF(2, 8)));
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(20, 20), SizeF(8, 2)));
- // Bottom.
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(10, 25), SizeF(20, 2)));
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(10, 25), SizeF(20, 4.9)));
- EXPECT_TRUE(quad.IntersectsEllipse(PointF(10, 25), SizeF(20, 5.1)));
- // Bottom-left.
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(0, 20), SizeF(7, 7)));
- EXPECT_TRUE(quad.IntersectsEllipse(PointF(0, 20), SizeF(6, 9)));
- EXPECT_TRUE(quad.IntersectsEllipse(PointF(0, 20), SizeF(7.1, 7.1)));
- EXPECT_TRUE(quad.IntersectsEllipse(PointF(0, 20), SizeF(9, 6)));
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(0, 20), SizeF(2, 8)));
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(0, 20), SizeF(8, 2)));
- // Left.
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(-5, 10), SizeF(2, 20)));
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(-5, 10), SizeF(4.9, 20)));
- EXPECT_TRUE(quad.IntersectsEllipse(PointF(-5, 10), SizeF(5.1, 20)));
- }
- TEST(QuadFTest, IntersectsEllipseCounterClockwise) {
- QuadF quad(PointF(10, 0), PointF(0, 10), PointF(10, 20), PointF(20, 10));
- // Top-left.
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(0, 0), SizeF(7, 7)));
- EXPECT_TRUE(quad.IntersectsEllipse(PointF(0, 0), SizeF(6, 9)));
- EXPECT_TRUE(quad.IntersectsEllipse(PointF(0, 0), SizeF(7.1, 7.1)));
- EXPECT_TRUE(quad.IntersectsEllipse(PointF(0, 0), SizeF(9, 6)));
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(0, 0), SizeF(2, 8)));
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(0, 0), SizeF(8, 2)));
- // Top.
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(10, -5), SizeF(20, 2)));
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(10, -5), SizeF(20, 4.9)));
- EXPECT_TRUE(quad.IntersectsEllipse(PointF(10, -5), SizeF(20, 5.1)));
- // Top-right.
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(20, 0), SizeF(7, 7)));
- EXPECT_TRUE(quad.IntersectsEllipse(PointF(20, 0), SizeF(6, 9)));
- EXPECT_TRUE(quad.IntersectsEllipse(PointF(20, 0), SizeF(7.1, 7.1)));
- EXPECT_TRUE(quad.IntersectsEllipse(PointF(20, 0), SizeF(9, 6)));
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(20, 0), SizeF(2, 8)));
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(20, 0), SizeF(8, 2)));
- // Right.
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(25, 10), SizeF(2, 20)));
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(25, 10), SizeF(4.9, 20)));
- EXPECT_TRUE(quad.IntersectsEllipse(PointF(25, 10), SizeF(5.1, 20)));
- // Bottom-right.
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(20, 20), SizeF(7, 7)));
- EXPECT_TRUE(quad.IntersectsEllipse(PointF(20, 20), SizeF(6, 9)));
- EXPECT_TRUE(quad.IntersectsEllipse(PointF(20, 20), SizeF(7.1, 7.1)));
- EXPECT_TRUE(quad.IntersectsEllipse(PointF(20, 20), SizeF(9, 6)));
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(20, 20), SizeF(2, 8)));
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(20, 20), SizeF(8, 2)));
- // Bottom.
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(10, 25), SizeF(20, 2)));
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(10, 25), SizeF(20, 4.9)));
- EXPECT_TRUE(quad.IntersectsEllipse(PointF(10, 25), SizeF(20, 5.1)));
- // Bottom-left.
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(0, 20), SizeF(7, 7)));
- EXPECT_TRUE(quad.IntersectsEllipse(PointF(0, 20), SizeF(6, 9)));
- EXPECT_TRUE(quad.IntersectsEllipse(PointF(0, 20), SizeF(7.1, 7.1)));
- EXPECT_TRUE(quad.IntersectsEllipse(PointF(0, 20), SizeF(9, 6)));
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(0, 20), SizeF(2, 8)));
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(0, 20), SizeF(8, 2)));
- // Left.
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(-5, 10), SizeF(2, 20)));
- EXPECT_FALSE(quad.IntersectsEllipse(PointF(-5, 10), SizeF(4.9, 20)));
- EXPECT_TRUE(quad.IntersectsEllipse(PointF(-5, 10), SizeF(5.1, 20)));
- }
- TEST(QuadFTest, CircleIntersectionIsInclusive) {
- // A rectilinear quad at (10, 10) with dimensions 10x10.
- QuadF quad(RectF(10, 10, 10, 10));
- // A circle fully contained in the top-left of the quad should intersect.
- EXPECT_TRUE(quad.IntersectsCircle(PointF(12, 12), 1));
- // A point fully contained in the top-left of the quad should intersect.
- EXPECT_TRUE(quad.IntersectsCircle(PointF(12, 12), 0));
- // A circle that touches the left edge should intersect.
- EXPECT_TRUE(quad.IntersectsCircle(PointF(9, 11), 1));
- // A circle that touches the top edge should intersect.
- EXPECT_TRUE(quad.IntersectsCircle(PointF(11, 9), 1));
- // A circle that touches the right edge should intersect.
- EXPECT_TRUE(quad.IntersectsCircle(PointF(21, 11), 1));
- // A circle that touches the bottom edge should intersect.
- EXPECT_TRUE(quad.IntersectsCircle(PointF(11, 21), 1));
- // A point that touches the left edge should intersect.
- EXPECT_TRUE(quad.IntersectsCircle(PointF(10, 11), 0));
- // A point that touches the top edge should intersect.
- EXPECT_TRUE(quad.IntersectsCircle(PointF(11, 10), 0));
- // A point that touches the right edge should intersect.
- EXPECT_TRUE(quad.IntersectsCircle(PointF(20, 11), 0));
- // A point that touches the bottom edge should intersect.
- EXPECT_TRUE(quad.IntersectsCircle(PointF(11, 20), 0));
- // A circle that is fully outside the quad should not intersect.
- EXPECT_FALSE(quad.IntersectsCircle(PointF(9, 9), 1));
- // A point that is fully outside the quad should not intersect.
- EXPECT_FALSE(quad.IntersectsCircle(PointF(9, 9), 0));
- }
- TEST(QuadFTest, CenterPoint) {
- EXPECT_EQ(PointF(), QuadF().CenterPoint());
- EXPECT_EQ(PointF(25.75f, 40.75f),
- QuadF(RectF(10.5f, 20.5f, 30.5f, 40.5f)).CenterPoint());
- EXPECT_EQ(PointF(10, 10),
- QuadF(PointF(10, 0), PointF(20, 10), PointF(10, 20), PointF(0, 10))
- .CenterPoint());
- }
- } // namespace gfx
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