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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_WIN_H_ | 5 #ifndef UI_GFX_PLATFORM_FONT_WIN_H_ |
6 #define UI_GFX_PLATFORM_FONT_WIN_H_ | 6 #define UI_GFX_PLATFORM_FONT_WIN_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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47 std::string GetLocalizedFontName() const; | 47 std::string GetLocalizedFontName() const; |
48 | 48 |
49 // Returns a derived Font with the specified |style| and with height at most | 49 // Returns a derived Font with the specified |style| and with height at most |
50 // |height|. If the height and style of the receiver already match, it is | 50 // |height|. If the height and style of the receiver already match, it is |
51 // returned. Otherwise, the returned Font will have the largest size such that | 51 // returned. Otherwise, the returned Font will have the largest size such that |
52 // its height is less than or equal to |height| (since there may not exist a | 52 // its height is less than or equal to |height| (since there may not exist a |
53 // size that matches the exact |height| specified). | 53 // size that matches the exact |height| specified). |
54 Font DeriveFontWithHeight(int height, int style); | 54 Font DeriveFontWithHeight(int height, int style); |
55 | 55 |
56 // Overridden from PlatformFont: | 56 // Overridden from PlatformFont: |
57 virtual Font DeriveFont(int size_delta, int style) const OVERRIDE; | 57 virtual Font DeriveFont(int size_delta, int style) const override; |
58 virtual int GetHeight() const OVERRIDE; | 58 virtual int GetHeight() const override; |
59 virtual int GetBaseline() const OVERRIDE; | 59 virtual int GetBaseline() const override; |
60 virtual int GetCapHeight() const OVERRIDE; | 60 virtual int GetCapHeight() const override; |
61 virtual int GetExpectedTextWidth(int length) const OVERRIDE; | 61 virtual int GetExpectedTextWidth(int length) const override; |
62 virtual int GetStyle() const OVERRIDE; | 62 virtual int GetStyle() const override; |
63 virtual std::string GetFontName() const OVERRIDE; | 63 virtual std::string GetFontName() const override; |
64 virtual std::string GetActualFontNameForTesting() const OVERRIDE; | 64 virtual std::string GetActualFontNameForTesting() const override; |
65 virtual int GetFontSize() const OVERRIDE; | 65 virtual int GetFontSize() const override; |
66 virtual const FontRenderParams& GetFontRenderParams() const OVERRIDE; | 66 virtual const FontRenderParams& GetFontRenderParams() const override; |
67 virtual NativeFont GetNativeFont() const OVERRIDE; | 67 virtual NativeFont GetNativeFont() const override; |
68 | 68 |
69 private: | 69 private: |
70 virtual ~PlatformFontWin() {} | 70 virtual ~PlatformFontWin() {} |
71 | 71 |
72 // Chrome text drawing bottoms out in the Windows GDI functions that take an | 72 // Chrome text drawing bottoms out in the Windows GDI functions that take an |
73 // HFONT (an opaque handle into Windows). To avoid lots of GDI object | 73 // HFONT (an opaque handle into Windows). To avoid lots of GDI object |
74 // allocation and destruction, Font indirectly refers to the HFONT by way of | 74 // allocation and destruction, Font indirectly refers to the HFONT by way of |
75 // an HFontRef. That is, every Font has an HFontRef, which has an HFONT. | 75 // an HFontRef. That is, every Font has an HFontRef, which has an HFONT. |
76 // | 76 // |
77 // HFontRef is reference counted. Upon deletion, it deletes the HFONT. | 77 // HFontRef is reference counted. Upon deletion, it deletes the HFONT. |
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160 | 160 |
161 // Indirect reference to the HFontRef, which references the underlying HFONT. | 161 // Indirect reference to the HFontRef, which references the underlying HFONT. |
162 scoped_refptr<HFontRef> font_ref_; | 162 scoped_refptr<HFontRef> font_ref_; |
163 | 163 |
164 DISALLOW_COPY_AND_ASSIGN(PlatformFontWin); | 164 DISALLOW_COPY_AND_ASSIGN(PlatformFontWin); |
165 }; | 165 }; |
166 | 166 |
167 } // namespace gfx | 167 } // namespace gfx |
168 | 168 |
169 #endif // UI_GFX_PLATFORM_FONT_WIN_H_ | 169 #endif // UI_GFX_PLATFORM_FONT_WIN_H_ |
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