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// Copyright (c) 2011 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.
#ifndef UI_GFX_FAVICON_SIZE_H_
#define UI_GFX_FAVICON_SIZE_H_
#pragma once
#include "base/compiler_specific.h"
// Size (along each axis) of the favicon.
const int kFaviconSize = 16;
// If the width or height is bigger than the favicon size, a new width/height
// is calculated and returned in width/height that maintains the aspect
// ratio of the supplied values.
static void calc_favicon_target_size(int* width, int* height) ALLOW_UNUSED;
// static
void calc_favicon_target_size(int* width, int* height) {
if (*width > kFaviconSize || *height > kFaviconSize) {
// Too big, resize it maintaining the aspect ratio.
float aspect_ratio = static_cast<float>(*width) /
static_cast<float>(*height);
*height = kFaviconSize;
*width = static_cast<int>(aspect_ratio * *height);
if (*width > kFaviconSize) {
*width = kFaviconSize;
*height = static_cast<int>(*width / aspect_ratio);
}
}
}
#endif // UI_GFX_FAVICON_SIZE_H_
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