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/transform_util.h" 6 7 #include "testing/gtest/include/gtest/gtest.h" 8 #include "ui/gfx/point.h" 9 10 namespace gfx { 11 namespace { 12 13 TEST(TransformUtilTest, GetScaleTransform) { 14 const Point kAnchor(20, 40); 15 const float kScale = 0.5f; 16 17 Transform scale = GetScaleTransform(kAnchor, kScale); 18 19 const int kOffset = 10; 20 for (int sign_x = -1; sign_x <= 1; ++sign_x) { 21 for (int sign_y = -1; sign_y <= 1; ++sign_y) { 22 Point test(kAnchor.x() + sign_x * kOffset, 23 kAnchor.y() + sign_y * kOffset); 24 scale.TransformPoint(test); 25 26 EXPECT_EQ(Point(kAnchor.x() + sign_x * kOffset * kScale, 27 kAnchor.y() + sign_y * kOffset * kScale), 28 test); 29 } 30 } 31 } 32 33 } // namespace 34 } // namespace gfx 35
