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1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2010 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 GFX_PLATFORM_FONT_ | 5 #ifndef GFX_PLATFORM_FONT_ |
6 #define GFX_PLATFORM_FONT_ | 6 #define GFX_PLATFORM_FONT_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 #include <string> | 9 #include <string> |
10 | 10 |
11 #include "base/ref_counted.h" | 11 #include "base/ref_counted.h" |
12 #include "base/string16.h" | 12 #include "base/string16.h" |
13 #include "gfx/native_widget_types.h" | 13 #include "gfx/native_widget_types.h" |
14 | 14 |
15 namespace gfx { | 15 namespace gfx { |
16 | 16 |
17 class Font; | 17 class Font; |
18 | 18 |
19 class PlatformFont : public base::RefCounted<PlatformFont> { | 19 class PlatformFont : public base::RefCounted<PlatformFont> { |
20 public: | 20 public: |
21 // Create an appropriate PlatformFont implementation. | 21 // Create an appropriate PlatformFont implementation. |
22 static PlatformFont* CreateDefault(); | 22 static PlatformFont* CreateDefault(); |
23 static PlatformFont* CreateFromFont(const Font& other); | 23 static PlatformFont* CreateFromFont(const Font& other); |
24 static PlatformFont* CreateFromNativeFont(NativeFont native_font); | 24 static PlatformFont* CreateFromNativeFont(NativeFont native_font); |
25 static PlatformFont* CreateFromNameAndSize(const std::wstring& font_name, | 25 static PlatformFont* CreateFromNameAndSize(const string16& font_name, |
26 int font_size); | 26 int font_size); |
27 | 27 |
28 // Returns a new Font derived from the existing font. | 28 // Returns a new Font derived from the existing font. |
29 // size_delta is the size to add to the current font. See the single | 29 // size_delta is the size to add to the current font. See the single |
30 // argument version of this method for an example. | 30 // argument version of this method for an example. |
31 // The style parameter specifies the new style for the font, and is a | 31 // The style parameter specifies the new style for the font, and is a |
32 // bitmask of the values: BOLD, ITALIC and UNDERLINED. | 32 // bitmask of the values: BOLD, ITALIC and UNDERLINED. |
33 virtual Font DeriveFont(int size_delta, int style) const = 0; | 33 virtual Font DeriveFont(int size_delta, int style) const = 0; |
34 | 34 |
35 // Returns the number of vertical pixels needed to display characters from | 35 // Returns the number of vertical pixels needed to display characters from |
(...skipping 15 matching lines...) Expand all Loading... | |
51 | 51 |
52 // Returns the expected number of horizontal pixels needed to display the | 52 // Returns the expected number of horizontal pixels needed to display the |
53 // specified length of characters. Call GetStringWidth() to retrieve the | 53 // specified length of characters. Call GetStringWidth() to retrieve the |
54 // actual number. | 54 // actual number. |
55 virtual int GetExpectedTextWidth(int length) const = 0; | 55 virtual int GetExpectedTextWidth(int length) const = 0; |
56 | 56 |
57 // Returns the style of the font. | 57 // Returns the style of the font. |
58 virtual int GetStyle() const = 0; | 58 virtual int GetStyle() const = 0; |
59 | 59 |
60 // Returns the font name. | 60 // Returns the font name. |
61 virtual const std::wstring& GetFontName() const = 0; | 61 virtual const string16& GetFontName() const = 0; |
evanm
2011/01/11 21:56:47
Not your problem, but this really shoulda returned
Avi (use Gerrit)
2011/01/11 22:15:28
Done.
| |
62 | 62 |
63 // Returns the font size in pixels. | 63 // Returns the font size in pixels. |
64 virtual int GetFontSize() const = 0; | 64 virtual int GetFontSize() const = 0; |
65 | 65 |
66 // Returns the native font handle. | 66 // Returns the native font handle. |
67 virtual NativeFont GetNativeFont() const = 0; | 67 virtual NativeFont GetNativeFont() const = 0; |
68 | 68 |
69 protected: | 69 protected: |
70 virtual ~PlatformFont() {} | 70 virtual ~PlatformFont() {} |
71 | 71 |
72 private: | 72 private: |
73 friend class base::RefCounted<PlatformFont>; | 73 friend class base::RefCounted<PlatformFont>; |
74 }; | 74 }; |
75 | 75 |
76 } // namespace gfx | 76 } // namespace gfx |
77 | 77 |
78 #endif // GFX_PLATFORM_FONT_ | 78 #endif // GFX_PLATFORM_FONT_ |
79 | 79 |
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