| // Copyright 2017 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_VR_FONT_FALLBACK_H_ |
| #define CHROME_BROWSER_VR_FONT_FALLBACK_H_ |
| |
| #include <string> |
| |
| #include "third_party/icu/source/common/unicode/uchar.h" |
| |
| namespace gfx { |
| class Font; |
| } // namespace gfx |
| |
| namespace vr { |
| |
| // Return a font name which provides a glyph for the Unicode code point |
| // specified by character. |
| // default_font: The main font for which fallbacks are required |
| // c: a UTF-32 code point |
| // preferred_locale: preferred locale identifier (if any) for |c| |
| // (e.g. "en", "ja", "zh-CN") |
| // |
| // The funtion, if it succeeds, sets |font_name|. Even if it succeeds, it may |
| // set |font_name| to the empty string if the character is supported by the |
| // default font. |
| // |
| // Returns: |
| // * false, if the request could not be satisfied or if the provided default |
| // font supports it. |
| // * true, otherwis. |
| // |
| bool GetFallbackFontNameForChar(const gfx::Font& default_font, |
| UChar32 c, |
| const std::string& preferred_locale, |
| std::string* font_name); |
| |
| } // namespace vr |
| |
| #endif // CHROME_BROWSER_VR_FONT_FALLBACK_H_ |
