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// Copyright 2018 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 CHROME_BROWSER_UI_APP_LIST_MD_ICON_NORMALIZER_H_
#define CHROME_BROWSER_UI_APP_LIST_MD_ICON_NORMALIZER_H_
#include "ui/gfx/geometry/size.h"
class SkBitmap;
namespace gfx {
class ImageSkia;
class Size;
} // namespace gfx
namespace app_list {
// Returns the padding that has to be added around the original content of the
// bitmap in order to comply with Material Design guidelines for icons.
// (https://material.io/design/iconography/product-icons.html).
gfx::Size GetMdIconPadding(const SkBitmap& bitmap,
const gfx::Size& required_size);
// Resize the icon and add padding. If padding is zero and the bitmap already
// has correct size, it will be left unchanged.
void MaybeResizeAndPad(const gfx::Size& required_size,
const gfx::Size& padding,
SkBitmap* bitmap_out);
// Resize the icon image to the required size and add padding to ensure
// compliance with Material Design guidelines
// (https://material.io/design/iconography/product-icons.html).
// This function combines resizing and downscaling into a single step in order
// to avoid repetitive downsampling that causes image artifacts.
// An icon with correct size and padding will be left unchanged.
void MaybeResizeAndPadIconForMd(const gfx::Size& required_size_dip,
gfx::ImageSkia* icon_out);
// Returns the scale to be applied to the bitmap so that it complies with the
// Material Design guidelines for icons. The returned scale is always <= 1.
float GetMdIconScaleForTest(const SkBitmap& bitmap);
} // namespace app_list
#endif // CHROME_BROWSER_UI_APP_LIST_MD_ICON_NORMALIZER_H_