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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef UI_GFX_PLATFORM_FONT_PANGO_H_ | 5 #ifndef UI_GFX_PLATFORM_FONT_PANGO_H_ |
| 6 #define UI_GFX_PLATFORM_FONT_PANGO_H_ | 6 #define UI_GFX_PLATFORM_FONT_PANGO_H_ |
| 7 | 7 |
| 8 #include <string> | 8 #include <string> |
| 9 | 9 |
| 10 #include "base/compiler_specific.h" | 10 #include "base/compiler_specific.h" |
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| 48 // Overridden from PlatformFont: | 48 // Overridden from PlatformFont: |
| 49 virtual Font DeriveFont(int size_delta, int style) const OVERRIDE; | 49 virtual Font DeriveFont(int size_delta, int style) const OVERRIDE; |
| 50 virtual int GetHeight() const OVERRIDE; | 50 virtual int GetHeight() const OVERRIDE; |
| 51 virtual int GetBaseline() const OVERRIDE; | 51 virtual int GetBaseline() const OVERRIDE; |
| 52 virtual int GetCapHeight() const OVERRIDE; | 52 virtual int GetCapHeight() const OVERRIDE; |
| 53 virtual int GetAverageCharacterWidth() const OVERRIDE; | 53 virtual int GetAverageCharacterWidth() const OVERRIDE; |
| 54 virtual int GetStringWidth(const base::string16& text) const OVERRIDE; | 54 virtual int GetStringWidth(const base::string16& text) const OVERRIDE; |
| 55 virtual int GetExpectedTextWidth(int length) const OVERRIDE; | 55 virtual int GetExpectedTextWidth(int length) const OVERRIDE; |
| 56 virtual int GetStyle() const OVERRIDE; | 56 virtual int GetStyle() const OVERRIDE; |
| 57 virtual std::string GetFontName() const OVERRIDE; | 57 virtual std::string GetFontName() const OVERRIDE; |
| 58 virtual std::string GetActualFontNameForTesting() const OVERRIDE; |
| 58 virtual int GetFontSize() const OVERRIDE; | 59 virtual int GetFontSize() const OVERRIDE; |
| 59 virtual NativeFont GetNativeFont() const OVERRIDE; | 60 virtual NativeFont GetNativeFont() const OVERRIDE; |
| 60 | 61 |
| 61 private: | 62 private: |
| 62 // Create a new instance of this object with the specified properties. Called | 63 // Create a new instance of this object with the specified properties. Called |
| 63 // from DeriveFont. | 64 // from DeriveFont. |
| 64 PlatformFontPango(const skia::RefPtr<SkTypeface>& typeface, | 65 PlatformFontPango(const skia::RefPtr<SkTypeface>& typeface, |
| 65 const std::string& name, | 66 const std::string& name, |
| 66 int size, | 67 int size, |
| 67 int style); | 68 int style); |
| 68 virtual ~PlatformFontPango(); | 69 virtual ~PlatformFontPango(); |
| 69 | 70 |
| 70 // Returns a Pango font description (suitable for parsing by | 71 // Returns a Pango font description (suitable for parsing by |
| 71 // pango_font_description_from_string()) for the default UI font. | 72 // pango_font_description_from_string()) for the default UI font. |
| 72 static std::string GetDefaultFont(); | 73 static std::string GetDefaultFont(); |
| 73 | 74 |
| 74 // Initialize this object. | 75 // Initialize this object. |
| 75 void InitWithNameAndSize(const std::string& font_name, int font_size); | 76 void InitWithNameAndSize(const std::string& font_name, int font_size); |
| 76 void InitWithTypefaceNameSizeAndStyle( | 77 void InitWithTypefaceNameSizeAndStyle( |
| 77 const skia::RefPtr<SkTypeface>& typeface, | 78 const skia::RefPtr<SkTypeface>& typeface, |
| 78 const std::string& name, | 79 const std::string& font_family, |
| 79 int size, | 80 int font_size, |
| 80 int style); | 81 int style); |
| 81 void InitFromPlatformFont(const PlatformFontPango* other); | 82 void InitFromPlatformFont(const PlatformFontPango* other); |
| 82 | 83 |
| 83 // Potentially slow call to get pango metrics (average width, underline info). | 84 // Potentially slow call to get pango metrics (average width, underline info). |
| 84 void InitPangoMetrics(); | 85 void InitPangoMetrics(); |
| 85 | 86 |
| 86 // Setup a Skia context to use the current typeface. | 87 // Setup a Skia context to use the current typeface. |
| 87 void PaintSetup(SkPaint* paint) const; | 88 void PaintSetup(SkPaint* paint) const; |
| 88 | 89 |
| 89 // Make |this| a copy of |other|. | 90 // Make |this| a copy of |other|. |
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| 117 #if defined(OS_CHROMEOS) | 118 #if defined(OS_CHROMEOS) |
| 118 static std::string* default_font_description_; | 119 static std::string* default_font_description_; |
| 119 #endif | 120 #endif |
| 120 | 121 |
| 121 DISALLOW_COPY_AND_ASSIGN(PlatformFontPango); | 122 DISALLOW_COPY_AND_ASSIGN(PlatformFontPango); |
| 122 }; | 123 }; |
| 123 | 124 |
| 124 } // namespace gfx | 125 } // namespace gfx |
| 125 | 126 |
| 126 #endif // UI_GFX_PLATFORM_FONT_PANGO_H_ | 127 #endif // UI_GFX_PLATFORM_FONT_PANGO_H_ |
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