blob: d9265c0a5fb55ad7663b79cc1efad2d2b4285cb4 [file] [log] [blame]
// Copyright 2019 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/base/cursor/cursor_util.h"
#include "base/logging.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/skia/include/core/SkBitmap.h"
namespace ui {
namespace {
// Parameterized test for cursor bitmaps with premultiplied and unpremultiplied
// alpha.
class CursorUtilTest : public testing::TestWithParam<bool> {
public:
SkColor GetPixelColor() {
return GetParam() ? SkColorSetARGB(128, 255, 0, 0)
: SkColorSetARGB(128, 128, 0, 0);
}
SkImageInfo GetImageInfo() {
return GetParam() ? SkImageInfo::MakeN32(10, 5, kUnpremul_SkAlphaType)
: SkImageInfo::MakeN32(10, 5, kPremul_SkAlphaType);
}
};
TEST_P(CursorUtilTest, ScaleAndRotate) {
const SkColor pixel_color = GetPixelColor();
SkBitmap bitmap;
bitmap.setInfo(GetImageInfo());
bitmap.allocPixels();
bitmap.eraseColor(pixel_color);
gfx::Point hotpoint(3, 4);
ScaleAndRotateCursorBitmapAndHotpoint(1.0f, display::Display::ROTATE_0,
&bitmap, &hotpoint);
EXPECT_EQ(10, bitmap.width());
EXPECT_EQ(5, bitmap.height());
EXPECT_EQ("3,4", hotpoint.ToString());
EXPECT_EQ(pixel_color, bitmap.pixmap().getColor(0, 0));
ScaleAndRotateCursorBitmapAndHotpoint(1.0f, display::Display::ROTATE_90,
&bitmap, &hotpoint);
EXPECT_EQ(5, bitmap.width());
EXPECT_EQ(10, bitmap.height());
EXPECT_EQ("1,3", hotpoint.ToString());
EXPECT_EQ(pixel_color, bitmap.pixmap().getColor(0, 0));
ScaleAndRotateCursorBitmapAndHotpoint(2.0f, display::Display::ROTATE_180,
&bitmap, &hotpoint);
EXPECT_EQ(10, bitmap.width());
EXPECT_EQ(20, bitmap.height());
EXPECT_EQ("8,14", hotpoint.ToString());
EXPECT_EQ(pixel_color, bitmap.pixmap().getColor(0, 0));
ScaleAndRotateCursorBitmapAndHotpoint(1.0f, display::Display::ROTATE_270,
&bitmap, &hotpoint);
EXPECT_EQ(20, bitmap.width());
EXPECT_EQ(10, bitmap.height());
EXPECT_EQ("14,2", hotpoint.ToString());
EXPECT_EQ(pixel_color, bitmap.pixmap().getColor(0, 0));
}
INSTANTIATE_TEST_SUITE_P(, CursorUtilTest, testing::Bool());
} // namespace
} // namespace ui