123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235 |
- // Copyright (c) 2012 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 "ui/gfx/interpolated_transform.h"
- #include "testing/gtest/include/gtest/gtest.h"
- #include "ui/gfx/geometry/rect.h"
- namespace {
- void CheckApproximatelyEqual(const gfx::Transform& lhs,
- const gfx::Transform& rhs) {
- for (int i = 0; i < 4; ++i) {
- for (int j = 0; j < 4; ++j) {
- EXPECT_FLOAT_EQ(lhs.matrix().rc(i, j), rhs.matrix().rc(i, j));
- }
- }
- }
- } // namespace
- TEST(InterpolatedTransformTest, InterpolatedRotation) {
- ui::InterpolatedRotation interpolated_rotation(0, 100);
- ui::InterpolatedRotation interpolated_rotation_diff_start_end(
- 0, 100, 100, 200);
- for (int i = 0; i <= 100; ++i) {
- gfx::Transform rotation;
- rotation.Rotate(i);
- gfx::Transform interpolated = interpolated_rotation.Interpolate(i / 100.0f);
- CheckApproximatelyEqual(rotation, interpolated);
- interpolated = interpolated_rotation_diff_start_end.Interpolate(i + 100);
- CheckApproximatelyEqual(rotation, interpolated);
- }
- }
- TEST(InterpolatedTransformTest, InterpolatedScale) {
- ui::InterpolatedScale interpolated_scale(gfx::Point3F(0, 0, 0),
- gfx::Point3F(100, 100, 100));
- ui::InterpolatedScale interpolated_scale_diff_start_end(
- gfx::Point3F(0, 0, 0), gfx::Point3F(100, 100, 100), 100, 200);
- for (int i = 0; i <= 100; ++i) {
- gfx::Transform scale;
- scale.Scale3d(i, i, i);
- gfx::Transform interpolated = interpolated_scale.Interpolate(i / 100.0f);
- CheckApproximatelyEqual(scale, interpolated);
- interpolated = interpolated_scale_diff_start_end.Interpolate(i + 100);
- CheckApproximatelyEqual(scale, interpolated);
- }
- }
- TEST(InterpolatedTransformTest, InterpolatedTranslate) {
- ui::InterpolatedTranslation interpolated_xform(gfx::PointF(),
- gfx::PointF(100.f, 100.f));
- ui::InterpolatedTranslation interpolated_xform_diff_start_end(
- gfx::PointF(), gfx::PointF(100.f, 100.f), 100, 200);
- for (int i = 0; i <= 100; ++i) {
- gfx::Transform xform;
- xform.Translate(i, i);
- gfx::Transform interpolated = interpolated_xform.Interpolate(i / 100.0f);
- CheckApproximatelyEqual(xform, interpolated);
- interpolated = interpolated_xform_diff_start_end.Interpolate(i + 100);
- CheckApproximatelyEqual(xform, interpolated);
- }
- }
- TEST(InterpolatedTransformTest, InterpolatedTranslate3d) {
- ui::InterpolatedTranslation interpolated_xform(gfx::Point3F(0, 0, 0),
- gfx::Point3F(100, 100, 100));
- ui::InterpolatedTranslation interpolated_xform_diff_start_end(
- gfx::Point3F(0, 0, 0), gfx::Point3F(100, 100, 100), 100, 200);
- for (int i = 0; i <= 100; ++i) {
- gfx::Transform xform;
- xform.Translate3d(i, i, i);
- gfx::Transform interpolated = interpolated_xform.Interpolate(i / 100.0f);
- CheckApproximatelyEqual(xform, interpolated);
- interpolated = interpolated_xform_diff_start_end.Interpolate(i + 100);
- CheckApproximatelyEqual(xform, interpolated);
- }
- }
- TEST(InterpolatedTransformTest, InterpolatedRotationAboutPivot) {
- gfx::Point pivot(100, 100);
- gfx::Point above_pivot(100, 200);
- ui::InterpolatedRotation rot(0, 90);
- ui::InterpolatedTransformAboutPivot interpolated_xform(
- pivot, std::make_unique<ui::InterpolatedRotation>(0, 90));
- gfx::Transform result = interpolated_xform.Interpolate(0.0f);
- CheckApproximatelyEqual(gfx::Transform(), result);
- result = interpolated_xform.Interpolate(1.0f);
- gfx::Point expected_result = pivot;
- result.TransformPoint(&pivot);
- EXPECT_EQ(expected_result, pivot);
- expected_result = gfx::Point(0, 100);
- result.TransformPoint(&above_pivot);
- EXPECT_EQ(expected_result, above_pivot);
- }
- TEST(InterpolatedTransformTest, InterpolatedScaleAboutPivot) {
- gfx::Point pivot(100, 100);
- gfx::Point above_pivot(100, 200);
- ui::InterpolatedTransformAboutPivot interpolated_xform(
- pivot, std::make_unique<ui::InterpolatedScale>(gfx::Point3F(1, 1, 1),
- gfx::Point3F(2, 2, 2)));
- gfx::Transform result = interpolated_xform.Interpolate(0.0f);
- CheckApproximatelyEqual(gfx::Transform(), result);
- result = interpolated_xform.Interpolate(1.0f);
- gfx::Point expected_result = pivot;
- result.TransformPoint(&pivot);
- EXPECT_EQ(expected_result, pivot);
- expected_result = gfx::Point(100, 300);
- result.TransformPoint(&above_pivot);
- EXPECT_EQ(expected_result, above_pivot);
- }
- ui::InterpolatedTransform* GetScreenRotation(int degrees, bool reversed) {
- gfx::Point old_pivot;
- gfx::Point new_pivot;
- int width = 1920;
- int height = 180;
- switch (degrees) {
- case 90:
- new_pivot = gfx::Point(width, 0);
- break;
- case -90:
- new_pivot = gfx::Point(0, height);
- break;
- case 180:
- case 360:
- new_pivot = old_pivot = gfx::Point(width / 2, height / 2);
- break;
- }
- std::unique_ptr<ui::InterpolatedTransform> rotation =
- std::make_unique<ui::InterpolatedTransformAboutPivot>(
- old_pivot, std::make_unique<ui::InterpolatedRotation>(
- reversed ? degrees : 0, reversed ? 0 : degrees));
- std::unique_ptr<ui::InterpolatedTransform> translation =
- std::make_unique<ui::InterpolatedTranslation>(
- gfx::PointF(), gfx::PointF(new_pivot.x() - old_pivot.x(),
- new_pivot.y() - old_pivot.y()));
- float scale_factor = 0.9f;
- std::unique_ptr<ui::InterpolatedTransform> scale_down =
- std::make_unique<ui::InterpolatedScale>(1.0f, scale_factor, 0.0f, 0.5f);
- std::unique_ptr<ui::InterpolatedTransform> scale_up =
- std::make_unique<ui::InterpolatedScale>(1.0f, 1.0f / scale_factor, 0.5f,
- 1.0f);
- std::unique_ptr<ui::InterpolatedTransform> to_return =
- std::make_unique<ui::InterpolatedConstantTransform>(gfx::Transform());
- scale_up->SetChild(std::move(scale_down));
- translation->SetChild(std::move(scale_up));
- rotation->SetChild(std::move(translation));
- to_return->SetChild(std::move(rotation));
- to_return->SetReversed(reversed);
- return to_return.release();
- }
- TEST(InterpolatedTransformTest, ScreenRotationEndsCleanly) {
- for (int i = 0; i < 2; ++i) {
- for (int degrees = -360; degrees <= 360; degrees += 90) {
- const bool reversed = i == 1;
- std::unique_ptr<ui::InterpolatedTransform> screen_rotation(
- GetScreenRotation(degrees, reversed));
- gfx::Transform interpolated = screen_rotation->Interpolate(1.0f);
- // Upper-left 3x3 matrix should all be 0, 1 or -1.
- for (int row = 0; row < 3; ++row) {
- for (int col = 0; col < 3; ++col) {
- float entry = interpolated.matrix().rc(row, col);
- EXPECT_TRUE(entry == 0 || entry == 1 || entry == -1);
- }
- }
- }
- }
- }
- ui::InterpolatedTransform* GetMaximize() {
- gfx::Rect target_bounds(0, 0, 1920, 1080);
- gfx::Rect initial_bounds(30, 1000, 192, 108);
- float scale_x = static_cast<float>(
- target_bounds.height()) / initial_bounds.width();
- float scale_y = static_cast<float>(
- target_bounds.width()) / initial_bounds.height();
- std::unique_ptr<ui::InterpolatedTransform> scale =
- std::make_unique<ui::InterpolatedScale>(
- gfx::Point3F(1, 1, 1), gfx::Point3F(scale_x, scale_y, 1));
- std::unique_ptr<ui::InterpolatedTransform> translation =
- std::make_unique<ui::InterpolatedTranslation>(
- gfx::PointF(), gfx::PointF(target_bounds.x() - initial_bounds.x(),
- target_bounds.y() - initial_bounds.y()));
- std::unique_ptr<ui::InterpolatedTransform> rotation =
- std::make_unique<ui::InterpolatedRotation>(0, 4.0f);
- std::unique_ptr<ui::InterpolatedTransform> rotation_about_pivot(
- std::make_unique<ui::InterpolatedTransformAboutPivot>(
- gfx::Point(initial_bounds.width() * 0.5,
- initial_bounds.height() * 0.5),
- std::move(rotation)));
- scale->SetChild(std::move(translation));
- rotation_about_pivot->SetChild(std::move(scale));
- rotation_about_pivot->SetReversed(true);
- return rotation_about_pivot.release();
- }
- TEST(InterpolatedTransformTest, MaximizeEndsCleanly) {
- std::unique_ptr<ui::InterpolatedTransform> maximize(GetMaximize());
- gfx::Transform interpolated = maximize->Interpolate(1.0f);
- // Upper-left 3x3 matrix should all be 0, 1 or -1.
- for (int row = 0; row < 3; ++row) {
- for (int col = 0; col < 3; ++col) {
- float entry = interpolated.matrix().rc(row, col);
- EXPECT_TRUE(entry == 0 || entry == 1 || entry == -1);
- }
- }
- }
|