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// 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/transform_util.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/gfx/point.h"
namespace gfx {
namespace {
TEST(TransformUtilTest, GetScaleTransform) {
const Point kAnchor(20, 40);
const float kScale = 0.5f;
Transform scale = GetScaleTransform(kAnchor, kScale);
const int kOffset = 10;
for (int sign_x = -1; sign_x <= 1; ++sign_x) {
for (int sign_y = -1; sign_y <= 1; ++sign_y) {
Point test(kAnchor.x() + sign_x * kOffset,
kAnchor.y() + sign_y * kOffset);
scale.TransformPoint(&test);
EXPECT_EQ(Point(kAnchor.x() + sign_x * kOffset * kScale,
kAnchor.y() + sign_y * kOffset * kScale),
test);
}
}
}
} // namespace
} // namespace gfx
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