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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #ifndef COMPONENTS_FAVICON_BASE_FALLBACK_ICON_SERVICE_H_ |
| 6 #define COMPONENTS_FAVICON_BASE_FALLBACK_ICON_SERVICE_H_ |
| 7 |
| 8 #include <string> |
| 9 #include <vector> |
| 10 |
| 11 #include "base/macros.h" |
| 12 |
| 13 class GURL; |
| 14 |
| 15 namespace gfx { |
| 16 class Canvas; |
| 17 } |
| 18 |
| 19 namespace favicon_base { |
| 20 |
| 21 struct FallbackIconStyle; |
| 22 |
| 23 // A service to provide methods to render fallback favicons. |
| 24 class FallbackIconService { |
| 25 public: |
| 26 explicit FallbackIconService(const std::vector<std::string>& font_list); |
| 27 ~FallbackIconService(); |
| 28 |
| 29 // Renders a fallback icon synchronously and returns the bitmap. Returns an |
| 30 // empty std::vector on failure. |size| is icon width and height in pixels. |
| 31 std::vector<unsigned char> RenderFallbackIconBitmap( |
| 32 const GURL& icon_url, |
| 33 int size, |
| 34 const FallbackIconStyle& style); |
| 35 |
| 36 private: |
| 37 // Renders a fallback icon on |canvas| at position (|x|, |y|). |size| is icon |
| 38 // width and height in pixels. |
| 39 void DrawFallbackIcon(const GURL& icon_url, |
| 40 int size, |
| 41 const FallbackIconStyle& style, |
| 42 gfx::Canvas* canvas); |
| 43 |
| 44 std::vector<std::string> font_list_; |
| 45 |
| 46 DISALLOW_COPY_AND_ASSIGN(FallbackIconService); |
| 47 }; |
| 48 |
| 49 } // namespace favicon_base |
| 50 |
| 51 #endif // COMPONENTS_FAVICON_BASE_FALLBACK_ICON_SERVICE_H_ |
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