| // Copyright 2015 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 COMPONENTS_FAVICON_BASE_FALLBACK_ICON_STYLE_H_ |
| #define COMPONENTS_FAVICON_BASE_FALLBACK_ICON_STYLE_H_ |
| |
| #include "base/memory/ref_counted_memory.h" |
| #include "third_party/skia/include/core/SkColor.h" |
| |
| namespace favicon_base { |
| |
| // Styling specifications of a fallback icon. The icon is composed of a solid |
| // rounded square containing a single letter. The specification excludes the |
| // icon URL and size, which are given when the icon is rendered. |
| struct FallbackIconStyle { |
| FallbackIconStyle(); |
| ~FallbackIconStyle(); |
| |
| // If any member changes, also update FallbackIconStyleBuilder. |
| |
| // Icon background fill color. |
| SkColor background_color; |
| |
| // Icon text color. |
| SkColor text_color; |
| |
| // Ratio in [0.0, 1.0] of the text font size (pixels) to the icon size. |
| double font_size_ratio; |
| |
| // The roundness of the icon's corners. 0 => square icon, 1 => circle icon. |
| double roundness; |
| |
| bool operator==(const FallbackIconStyle& other) const; |
| }; |
| |
| // Reassigns |style|'s |text_color| to matches well against |background_color|. |
| void MatchFallbackIconTextColorAgainstBackgroundColor(FallbackIconStyle* style); |
| |
| // Returns whether |style| values are within bounds. |
| bool ValidateFallbackIconStyle(const FallbackIconStyle& style); |
| |
| // Set |style|'s background color to the dominant color of |bitmap_data|, |
| // clamping luminance down to a reasonable maximum value so that light text is |
| // readable. |
| void SetDominantColorAsBackground( |
| const scoped_refptr<base::RefCountedMemory>& bitmap_data, |
| FallbackIconStyle* style); |
| |
| } // namespace favicon_base |
| |
| #endif // COMPONENTS_FAVICON_BASE_FALLBACK_ICON_STYLE_H_ |