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| 1 // Copyright (c) 2006-2008 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 #ifndef CHROME_COMMON_GFX_FAVICON_SIZE_H__ | |
| 6 #define CHROME_COMMON_GFX_FAVICON_SIZE_H__ | |
| 7 | |
| 8 #include "base/compiler_specific.h" | |
| 9 | |
| 10 // Size (along each axis) of the favicon. | |
| 11 const int kFavIconSize = 16; | |
| 12 | |
| 13 // If the width or height is bigger than the favicon size, a new width/height | |
| 14 // is calculated and returned in width/height that maintains the aspect | |
| 15 // ratio of the supplied values. | |
| 16 static void calc_favicon_target_size(int* width, int* height) ALLOW_UNUSED; | |
| 17 | |
| 18 // static | |
| 19 void calc_favicon_target_size(int* width, int* height) { | |
| 20 if (*width > kFavIconSize || *height > kFavIconSize) { | |
| 21 // Too big, resize it maintaining the aspect ratio. | |
| 22 float aspect_ratio = static_cast<float>(*width) / | |
| 23 static_cast<float>(*height); | |
| 24 *height = kFavIconSize; | |
| 25 *width = static_cast<int>(aspect_ratio * *height); | |
| 26 if (*width > kFavIconSize) { | |
| 27 *width = kFavIconSize; | |
| 28 *height = static_cast<int>(*width / aspect_ratio); | |
| 29 } | |
| 30 } | |
| 31 } | |
| 32 | |
| 33 #endif // CHROME_COMMON_GFX_FAVICON_SIZE_H__ | |
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