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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_LINUX_H_ | 5 #ifndef UI_GFX_PLATFORM_FONT_LINUX_H_ |
6 #define UI_GFX_PLATFORM_FONT_LINUX_H_ | 6 #define UI_GFX_PLATFORM_FONT_LINUX_H_ |
7 | 7 |
8 #include <memory> | 8 #include <memory> |
9 #include <string> | 9 #include <string> |
10 | 10 |
11 #include "base/compiler_specific.h" | 11 #include "base/compiler_specific.h" |
12 #include "base/macros.h" | 12 #include "base/macros.h" |
13 #include "build/build_config.h" | 13 #include "build/build_config.h" |
14 #include "third_party/skia/include/core/SkRefCnt.h" | 14 #include "third_party/skia/include/core/SkRefCnt.h" |
15 #include "ui/gfx/font_render_params.h" | 15 #include "ui/gfx/font_render_params.h" |
16 #include "ui/gfx/platform_font.h" | 16 #include "ui/gfx/platform_font.h" |
17 | 17 |
18 class SkTypeface; | 18 class SkTypeface; |
19 class SkPaint; | 19 class SkPaint; |
20 | 20 |
21 namespace gfx { | 21 namespace gfx { |
22 | 22 |
23 class GFX_EXPORT PlatformFontLinux : public PlatformFont { | 23 class GFX_EXPORT PlatformFontLinux : public PlatformFont { |
24 public: | 24 public: |
25 // TODO(derat): Get rid of the default constructor in favor of using | 25 // TODO(derat): Get rid of the default constructor in favor of using |
26 // gfx::FontList (which also has the concept of a default font but may contain | 26 // FontList (which also has the concept of a default font but may contain |
27 // multiple font families) everywhere. See http://crbug.com/398885#c16. | 27 // multiple font families) everywhere. See http://crbug.com/398885#c16. |
28 PlatformFontLinux(); | 28 PlatformFontLinux(); |
29 PlatformFontLinux(const std::string& font_name, int font_size_pixels); | 29 PlatformFontLinux(const std::string& font_name, int font_size_pixels); |
30 | 30 |
31 // Resets and reloads the cached system font used by the default constructor. | 31 // Resets and reloads the cached system font used by the default constructor. |
32 // This function is useful when the system font has changed, for example, when | 32 // This function is useful when the system font has changed, for example, when |
33 // the locale has changed. | 33 // the locale has changed. |
34 static void ReloadDefaultFont(); | 34 static void ReloadDefaultFont(); |
35 | 35 |
36 #if defined(OS_CHROMEOS) | 36 #if defined(OS_CHROMEOS) |
37 // Sets the default font. |font_description| is a gfx::FontList font | 37 // Sets the default font. |font_description| is a FontList font description; |
38 // description; only the first family will be used. | 38 // only the first family will be used. |
39 static void SetDefaultFontDescription(const std::string& font_description); | 39 static void SetDefaultFontDescription(const std::string& font_description); |
40 #endif | 40 #endif |
41 | 41 |
42 // Overridden from PlatformFont: | 42 // Overridden from PlatformFont: |
43 Font DeriveFont(int size_delta, int style) const override; | 43 Font DeriveFont(int size_delta, |
| 44 int style, |
| 45 Font::Weight weight) const override; |
44 int GetHeight() override; | 46 int GetHeight() override; |
| 47 Font::Weight GetWeight() const override; |
45 int GetBaseline() override; | 48 int GetBaseline() override; |
46 int GetCapHeight() override; | 49 int GetCapHeight() override; |
47 int GetExpectedTextWidth(int length) override; | 50 int GetExpectedTextWidth(int length) override; |
48 int GetStyle() const override; | 51 int GetStyle() const override; |
49 const std::string& GetFontName() const override; | 52 const std::string& GetFontName() const override; |
50 std::string GetActualFontNameForTesting() const override; | 53 std::string GetActualFontNameForTesting() const override; |
51 int GetFontSize() const override; | 54 int GetFontSize() const override; |
52 const FontRenderParams& GetFontRenderParams() override; | 55 const FontRenderParams& GetFontRenderParams() override; |
53 | 56 |
54 private: | 57 private: |
55 // Create a new instance of this object with the specified properties. Called | 58 // Create a new instance of this object with the specified properties. Called |
56 // from DeriveFont. | 59 // from DeriveFont. |
57 PlatformFontLinux(sk_sp<SkTypeface> typeface, | 60 PlatformFontLinux(sk_sp<SkTypeface> typeface, |
58 const std::string& family, | 61 const std::string& family, |
59 int size_pixels, | 62 int size_pixels, |
60 int style, | 63 bool italic, |
| 64 Font::Weight weight, |
61 const FontRenderParams& params); | 65 const FontRenderParams& params); |
62 ~PlatformFontLinux() override; | 66 ~PlatformFontLinux() override; |
63 | 67 |
64 // Initializes this object based on the passed-in details. If |typeface| is | 68 // Initializes this object based on the passed-in details. If |typeface| is |
65 // empty, a new typeface will be loaded. | 69 // empty, a new typeface will be loaded. |
66 void InitFromDetails( | 70 void InitFromDetails( |
67 sk_sp<SkTypeface> typeface, | 71 sk_sp<SkTypeface> typeface, |
68 const std::string& font_family, | 72 const std::string& font_family, |
69 int font_size_pixels, | 73 int font_size_pixels, |
70 int style, | 74 bool italic, |
| 75 Font::Weight weight, |
71 const FontRenderParams& params); | 76 const FontRenderParams& params); |
72 | 77 |
73 // Initializes this object as a copy of another PlatformFontLinux. | 78 // Initializes this object as a copy of another PlatformFontLinux. |
74 void InitFromPlatformFont(const PlatformFontLinux* other); | 79 void InitFromPlatformFont(const PlatformFontLinux* other); |
75 | 80 |
76 // Computes the metrics if they have not yet been computed. | 81 // Computes the metrics if they have not yet been computed. |
77 void ComputeMetricsIfNecessary(); | 82 void ComputeMetricsIfNecessary(); |
78 | 83 |
79 sk_sp<SkTypeface> typeface_; | 84 sk_sp<SkTypeface> typeface_; |
80 | 85 |
81 // Additional information about the face. | 86 // Additional information about the face. |
82 // Skia actually expects a family name and not a font name. | 87 // Skia actually expects a family name and not a font name. |
83 std::string font_family_; | 88 std::string font_family_; |
84 int font_size_pixels_; | 89 int font_size_pixels_; |
85 int style_; | 90 bool italic_; |
86 float device_scale_factor_; | 91 float device_scale_factor_; |
87 | 92 |
88 // Information describing how the font should be rendered. | 93 // Information describing how the font should be rendered. |
89 FontRenderParams font_render_params_; | 94 FontRenderParams font_render_params_; |
90 | 95 |
91 // Cached metrics, generated on demand. | 96 // Cached metrics, generated on demand. |
92 bool metrics_need_computation_ = true; | 97 bool metrics_need_computation_ = true; |
93 int ascent_pixels_; | 98 int ascent_pixels_; |
94 int height_pixels_; | 99 int height_pixels_; |
95 int cap_height_pixels_; | 100 int cap_height_pixels_; |
96 double average_width_pixels_; | 101 double average_width_pixels_; |
| 102 Font::Weight weight_; |
97 | 103 |
98 #if defined(OS_CHROMEOS) | 104 #if defined(OS_CHROMEOS) |
99 // A font description string of the format used by gfx::FontList. | 105 // A font description string of the format used by FontList. |
100 static std::string* default_font_description_; | 106 static std::string* default_font_description_; |
101 #endif | 107 #endif |
102 | 108 |
103 DISALLOW_COPY_AND_ASSIGN(PlatformFontLinux); | 109 DISALLOW_COPY_AND_ASSIGN(PlatformFontLinux); |
104 }; | 110 }; |
105 | 111 |
106 } // namespace gfx | 112 } // namespace gfx |
107 | 113 |
108 #endif // UI_GFX_PLATFORM_FONT_LINUX_H_ | 114 #endif // UI_GFX_PLATFORM_FONT_LINUX_H_ |
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