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| 1 // Copyright (c) 2010 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 "base/file_util.h" | |
| 6 #include "base/path_service.h" | |
| 7 #include "base/scoped_ptr.h" | |
| 8 #include "gfx/gfx_paths.h" | |
| 9 #include "gfx/icon_util.h" | |
| 10 #include "gfx/size.h" | |
| 11 #include "testing/gtest/include/gtest/gtest.h" | |
| 12 #include "third_party/skia/include/core/SkBitmap.h" | |
| 13 | |
| 14 namespace { | |
| 15 | |
| 16 static const char kSmallIconName[] = "icon_util/16_X_16_icon.ico"; | |
| 17 static const char kLargeIconName[] = "icon_util/128_X_128_icon.ico"; | |
| 18 static const char kTempIconFilename[] = "temp_test_icon.ico"; | |
| 19 | |
| 20 class IconUtilTest : public testing::Test { | |
| 21 public: | |
| 22 IconUtilTest() { | |
| 23 PathService::Get(gfx::DIR_TEST_DATA, &test_data_directory_); | |
| 24 } | |
| 25 ~IconUtilTest() {} | |
| 26 | |
| 27 static const int kSmallIconWidth = 16; | |
| 28 static const int kSmallIconHeight = 16; | |
| 29 static const int kLargeIconWidth = 128; | |
| 30 static const int kLargeIconHeight = 128; | |
| 31 | |
| 32 // Given a file name for an .ico file and an image dimentions, this | |
| 33 // function loads the icon and returns an HICON handle. | |
| 34 HICON LoadIconFromFile(const FilePath& filename, int width, int height) { | |
| 35 HICON icon = static_cast<HICON>(LoadImage(NULL, | |
| 36 filename.value().c_str(), | |
| 37 IMAGE_ICON, | |
| 38 width, | |
| 39 height, | |
| 40 LR_LOADTRANSPARENT | LR_LOADFROMFILE)); | |
| 41 return icon; | |
| 42 } | |
| 43 | |
| 44 protected: | |
| 45 // The root directory for test files. | |
| 46 FilePath test_data_directory_; | |
| 47 | |
| 48 private: | |
| 49 DISALLOW_COPY_AND_ASSIGN(IconUtilTest); | |
| 50 }; | |
| 51 | |
| 52 } // namespace | |
| 53 | |
| 54 // The following test case makes sure IconUtil::SkBitmapFromHICON fails | |
| 55 // gracefully when called with invalid input parameters. | |
| 56 TEST_F(IconUtilTest, TestIconToBitmapInvalidParameters) { | |
| 57 FilePath icon_filename = test_data_directory_.AppendASCII(kSmallIconName); | |
| 58 gfx::Size icon_size(kSmallIconWidth, kSmallIconHeight); | |
| 59 HICON icon = LoadIconFromFile(icon_filename, | |
| 60 icon_size.width(), | |
| 61 icon_size.height()); | |
| 62 ASSERT_TRUE(icon != NULL); | |
| 63 | |
| 64 // Invalid size parameter. | |
| 65 gfx::Size invalid_icon_size(kSmallIconHeight, 0); | |
| 66 EXPECT_EQ(IconUtil::CreateSkBitmapFromHICON(icon, invalid_icon_size), | |
| 67 static_cast<SkBitmap*>(NULL)); | |
| 68 | |
| 69 // Invalid icon. | |
| 70 EXPECT_EQ(IconUtil::CreateSkBitmapFromHICON(NULL, icon_size), | |
| 71 static_cast<SkBitmap*>(NULL)); | |
| 72 | |
| 73 // The following code should succeed. | |
| 74 scoped_ptr<SkBitmap> bitmap; | |
| 75 bitmap.reset(IconUtil::CreateSkBitmapFromHICON(icon, icon_size)); | |
| 76 EXPECT_NE(bitmap.get(), static_cast<SkBitmap*>(NULL)); | |
| 77 ::DestroyIcon(icon); | |
| 78 } | |
| 79 | |
| 80 // The following test case makes sure IconUtil::CreateHICONFromSkBitmap fails | |
| 81 // gracefully when called with invalid input parameters. | |
| 82 TEST_F(IconUtilTest, TestBitmapToIconInvalidParameters) { | |
| 83 HICON icon = NULL; | |
| 84 scoped_ptr<SkBitmap> bitmap; | |
| 85 | |
| 86 // Wrong bitmap format. | |
| 87 bitmap.reset(new SkBitmap); | |
| 88 ASSERT_NE(bitmap.get(), static_cast<SkBitmap*>(NULL)); | |
| 89 bitmap->setConfig(SkBitmap::kA8_Config, kSmallIconWidth, kSmallIconHeight); | |
| 90 icon = IconUtil::CreateHICONFromSkBitmap(*bitmap); | |
| 91 EXPECT_EQ(icon, static_cast<HICON>(NULL)); | |
| 92 | |
| 93 // Invalid bitmap size. | |
| 94 bitmap.reset(new SkBitmap); | |
| 95 ASSERT_NE(bitmap.get(), static_cast<SkBitmap*>(NULL)); | |
| 96 bitmap->setConfig(SkBitmap::kARGB_8888_Config, 0, 0); | |
| 97 icon = IconUtil::CreateHICONFromSkBitmap(*bitmap); | |
| 98 EXPECT_EQ(icon, static_cast<HICON>(NULL)); | |
| 99 | |
| 100 // Valid bitmap configuration but no pixels allocated. | |
| 101 bitmap.reset(new SkBitmap); | |
| 102 ASSERT_NE(bitmap.get(), static_cast<SkBitmap*>(NULL)); | |
| 103 bitmap->setConfig(SkBitmap::kARGB_8888_Config, | |
| 104 kSmallIconWidth, | |
| 105 kSmallIconHeight); | |
| 106 icon = IconUtil::CreateHICONFromSkBitmap(*bitmap); | |
| 107 EXPECT_TRUE(icon == NULL); | |
| 108 } | |
| 109 | |
| 110 // The following test case makes sure IconUtil::CreateIconFileFromSkBitmap | |
| 111 // fails gracefully when called with invalid input parameters. | |
| 112 TEST_F(IconUtilTest, TestCreateIconFileInvalidParameters) { | |
| 113 scoped_ptr<SkBitmap> bitmap; | |
| 114 FilePath valid_icon_filename = test_data_directory_.AppendASCII( | |
| 115 kSmallIconName); | |
| 116 FilePath invalid_icon_filename(FILE_PATH_LITERAL("C:\\<>?.ico")); | |
| 117 | |
| 118 // Wrong bitmap format. | |
| 119 bitmap.reset(new SkBitmap); | |
| 120 ASSERT_NE(bitmap.get(), static_cast<SkBitmap*>(NULL)); | |
| 121 bitmap->setConfig(SkBitmap::kA8_Config, kSmallIconWidth, kSmallIconHeight); | |
| 122 EXPECT_FALSE(IconUtil::CreateIconFileFromSkBitmap(*bitmap, | |
| 123 valid_icon_filename)); | |
| 124 | |
| 125 // Invalid bitmap size. | |
| 126 bitmap.reset(new SkBitmap); | |
| 127 ASSERT_NE(bitmap.get(), static_cast<SkBitmap*>(NULL)); | |
| 128 bitmap->setConfig(SkBitmap::kARGB_8888_Config, 0, 0); | |
| 129 EXPECT_FALSE(IconUtil::CreateIconFileFromSkBitmap(*bitmap, | |
| 130 valid_icon_filename)); | |
| 131 | |
| 132 // Bitmap with no allocated pixels. | |
| 133 bitmap.reset(new SkBitmap); | |
| 134 ASSERT_NE(bitmap.get(), static_cast<SkBitmap*>(NULL)); | |
| 135 bitmap->setConfig(SkBitmap::kARGB_8888_Config, | |
| 136 kSmallIconWidth, | |
| 137 kSmallIconHeight); | |
| 138 EXPECT_FALSE(IconUtil::CreateIconFileFromSkBitmap(*bitmap, | |
| 139 valid_icon_filename)); | |
| 140 | |
| 141 // Invalid file name. | |
| 142 bitmap->allocPixels(); | |
| 143 // Setting the pixels to black. | |
| 144 memset(bitmap->getPixels(), 0, bitmap->width() * bitmap->height() * 4); | |
| 145 EXPECT_FALSE(IconUtil::CreateIconFileFromSkBitmap(*bitmap, | |
| 146 invalid_icon_filename)); | |
| 147 } | |
| 148 | |
| 149 // This test case makes sure that when we load an icon from disk and convert | |
| 150 // the HICON into a bitmap, the bitmap has the expected format and dimentions. | |
| 151 TEST_F(IconUtilTest, TestCreateSkBitmapFromHICON) { | |
| 152 scoped_ptr<SkBitmap> bitmap; | |
| 153 FilePath small_icon_filename = test_data_directory_.AppendASCII( | |
| 154 kSmallIconName); | |
| 155 gfx::Size small_icon_size(kSmallIconWidth, kSmallIconHeight); | |
| 156 HICON small_icon = LoadIconFromFile(small_icon_filename, | |
| 157 small_icon_size.width(), | |
| 158 small_icon_size.height()); | |
| 159 ASSERT_NE(small_icon, static_cast<HICON>(NULL)); | |
| 160 bitmap.reset(IconUtil::CreateSkBitmapFromHICON(small_icon, small_icon_size)); | |
| 161 ASSERT_NE(bitmap.get(), static_cast<SkBitmap*>(NULL)); | |
| 162 EXPECT_EQ(bitmap->width(), small_icon_size.width()); | |
| 163 EXPECT_EQ(bitmap->height(), small_icon_size.height()); | |
| 164 EXPECT_EQ(bitmap->config(), SkBitmap::kARGB_8888_Config); | |
| 165 ::DestroyIcon(small_icon); | |
| 166 | |
| 167 FilePath large_icon_filename = test_data_directory_.AppendASCII( | |
| 168 kLargeIconName); | |
| 169 gfx::Size large_icon_size(kLargeIconWidth, kLargeIconHeight); | |
| 170 HICON large_icon = LoadIconFromFile(large_icon_filename, | |
| 171 large_icon_size.width(), | |
| 172 large_icon_size.height()); | |
| 173 ASSERT_NE(large_icon, static_cast<HICON>(NULL)); | |
| 174 bitmap.reset(IconUtil::CreateSkBitmapFromHICON(large_icon, large_icon_size)); | |
| 175 ASSERT_NE(bitmap.get(), static_cast<SkBitmap*>(NULL)); | |
| 176 EXPECT_EQ(bitmap->width(), large_icon_size.width()); | |
| 177 EXPECT_EQ(bitmap->height(), large_icon_size.height()); | |
| 178 EXPECT_EQ(bitmap->config(), SkBitmap::kARGB_8888_Config); | |
| 179 ::DestroyIcon(large_icon); | |
| 180 } | |
| 181 | |
| 182 // This test case makes sure that when an HICON is created from an SkBitmap, | |
| 183 // the returned handle is valid and refers to an icon with the expected | |
| 184 // dimentions color depth etc. | |
| 185 TEST_F(IconUtilTest, TestBasicCreateHICONFromSkBitmap) { | |
| 186 scoped_ptr<SkBitmap> bitmap; | |
| 187 bitmap.reset(new SkBitmap); | |
| 188 ASSERT_NE(bitmap.get(), static_cast<SkBitmap*>(NULL)); | |
| 189 bitmap->setConfig(SkBitmap::kARGB_8888_Config, | |
| 190 kSmallIconWidth, | |
| 191 kSmallIconHeight); | |
| 192 bitmap->allocPixels(); | |
| 193 HICON icon = IconUtil::CreateHICONFromSkBitmap(*bitmap); | |
| 194 EXPECT_NE(icon, static_cast<HICON>(NULL)); | |
| 195 ICONINFO icon_info; | |
| 196 ASSERT_TRUE(::GetIconInfo(icon, &icon_info)); | |
| 197 EXPECT_TRUE(icon_info.fIcon); | |
| 198 | |
| 199 // Now that have the icon information, we should obtain the specification of | |
| 200 // the icon's bitmap and make sure it matches the specification of the | |
| 201 // SkBitmap we started with. | |
| 202 // | |
| 203 // The bitmap handle contained in the icon information is a handle to a | |
| 204 // compatible bitmap so we need to call ::GetDIBits() in order to retrieve | |
| 205 // the bitmap's header information. | |
| 206 BITMAPINFO bitmap_info; | |
| 207 ::ZeroMemory(&bitmap_info, sizeof(BITMAPINFO)); | |
| 208 bitmap_info.bmiHeader.biSize = sizeof(BITMAPINFO); | |
| 209 HDC hdc = ::GetDC(NULL); | |
| 210 int result = ::GetDIBits(hdc, | |
| 211 icon_info.hbmColor, | |
| 212 0, | |
| 213 kSmallIconWidth, | |
| 214 NULL, | |
| 215 &bitmap_info, | |
| 216 DIB_RGB_COLORS); | |
| 217 ASSERT_GT(result, 0); | |
| 218 EXPECT_EQ(bitmap_info.bmiHeader.biWidth, kSmallIconWidth); | |
| 219 EXPECT_EQ(bitmap_info.bmiHeader.biHeight, kSmallIconHeight); | |
| 220 EXPECT_EQ(bitmap_info.bmiHeader.biPlanes, 1); | |
| 221 EXPECT_EQ(bitmap_info.bmiHeader.biBitCount, 32); | |
| 222 ::ReleaseDC(NULL, hdc); | |
| 223 ::DestroyIcon(icon); | |
| 224 } | |
| 225 | |
| 226 // The following test case makes sure IconUtil::CreateIconFileFromSkBitmap | |
| 227 // creates a valid .ico file given an SkBitmap. | |
| 228 TEST_F(IconUtilTest, TestCreateIconFile) { | |
| 229 scoped_ptr<SkBitmap> bitmap; | |
| 230 FilePath icon_filename = test_data_directory_.AppendASCII(kTempIconFilename); | |
| 231 | |
| 232 // Allocating the bitmap. | |
| 233 bitmap.reset(new SkBitmap); | |
| 234 ASSERT_NE(bitmap.get(), static_cast<SkBitmap*>(NULL)); | |
| 235 bitmap->setConfig(SkBitmap::kARGB_8888_Config, | |
| 236 kSmallIconWidth, | |
| 237 kSmallIconHeight); | |
| 238 bitmap->allocPixels(); | |
| 239 | |
| 240 // Setting the pixels to black. | |
| 241 memset(bitmap->getPixels(), 0, bitmap->width() * bitmap->height() * 4); | |
| 242 | |
| 243 EXPECT_TRUE(IconUtil::CreateIconFileFromSkBitmap(*bitmap, | |
| 244 icon_filename)); | |
| 245 | |
| 246 // We are currently only testing that it is possible to load an icon from | |
| 247 // the .ico file we just created. We don't really check the additional icon | |
| 248 // images created by IconUtil::CreateIconFileFromSkBitmap. | |
| 249 HICON icon = LoadIconFromFile(icon_filename, | |
| 250 kSmallIconWidth, | |
| 251 kSmallIconHeight); | |
| 252 EXPECT_NE(icon, static_cast<HICON>(NULL)); | |
| 253 if (icon != NULL) { | |
| 254 ::DestroyIcon(icon); | |
| 255 } | |
| 256 } | |
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