| // Copyright 2016 The Fuchsia 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 TOPAZ_EXAMPLES_UI_LIB_SKIA_FONT_LOADER_H_ |
| #define TOPAZ_EXAMPLES_UI_LIB_SKIA_FONT_LOADER_H_ |
| |
| #include <fuchsia/fonts/cpp/fidl.h> |
| #include <lib/fit/function.h> |
| |
| #include <functional> |
| |
| #include "src/lib/fxl/macros.h" |
| #include "third_party/skia/include/core/SkTypeface.h" |
| |
| namespace scenic { |
| |
| // Loads fonts from a font provider. |
| class SkiaFontLoader { |
| public: |
| using FontCallback = fit::function<void(sk_sp<SkTypeface>)>; |
| |
| SkiaFontLoader(fuchsia::fonts::ProviderPtr font_provider); |
| ~SkiaFontLoader(); |
| |
| // Loads the requested font and invokes the callback when done. |
| // If the request fails, the callback will receive a null typeface. |
| void LoadFont(fuchsia::fonts::TypefaceRequest request, FontCallback callback); |
| |
| // Loads the default font and invokes the callback when done. |
| // If the request fails, the callback will receive a null typeface. |
| void LoadDefaultFont(FontCallback callback); |
| |
| private: |
| fuchsia::fonts::ProviderPtr font_provider_; |
| |
| FXL_DISALLOW_COPY_AND_ASSIGN(SkiaFontLoader); |
| }; |
| |
| } // namespace scenic |
| |
| #endif // TOPAZ_EXAMPLES_UI_LIB_SKIA_FONT_LOADER_H_ |