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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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_FONT_LIST_IMPL_H_ | 5 #ifndef UI_GFX_FONT_LIST_IMPL_H_ |
6 #define UI_GFX_FONT_LIST_IMPL_H_ | 6 #define UI_GFX_FONT_LIST_IMPL_H_ |
7 | 7 |
8 #include <string> | 8 #include <string> |
9 #include <vector> | 9 #include <vector> |
10 | 10 |
11 #include "base/memory/ref_counted.h" | 11 #include "base/memory/ref_counted.h" |
12 #include "ui/gfx/font.h" | |
12 | 13 |
13 namespace gfx { | 14 namespace gfx { |
14 | 15 |
15 class Font; | 16 class Font; |
tapted
2016/03/22 04:04:17
nit: this is redundant now
Mikus
2016/03/22 14:19:51
Done.
| |
16 | 17 |
17 // FontListImpl is designed to provide the implementation of FontList and | 18 // FontListImpl is designed to provide the implementation of FontList and |
18 // intended to be used only from FontList. You must not use this class | 19 // intended to be used only from FontList. You must not use this class |
19 // directly. | 20 // directly. |
20 // | 21 // |
21 // FontListImpl represents a list of fonts either in the form of Font vector or | 22 // FontListImpl represents a list of fonts either in the form of Font vector or |
22 // in the form of a string representing font names, styles, and size. | 23 // in the form of a string representing font names, styles, and size. |
23 // | 24 // |
24 // FontListImpl could be initialized either way without conversion to the other | 25 // FontListImpl could be initialized either way without conversion to the other |
25 // form. The conversion to the other form is done only when asked to get the | 26 // form. The conversion to the other form is done only when asked to get the |
26 // other form. | 27 // other form. |
27 // | 28 // |
28 // For the format of font description string, see font_list.h for details. | 29 // For the format of font description string, see font_list.h for details. |
29 class FontListImpl : public base::RefCounted<FontListImpl> { | 30 class FontListImpl : public base::RefCounted<FontListImpl> { |
30 public: | 31 public: |
31 // Creates a font list from a string representing font names, styles, and | 32 // Creates a font list from a string representing font names, styles, and |
32 // size. | 33 // size. |
33 explicit FontListImpl(const std::string& font_description_string); | 34 explicit FontListImpl(const std::string& font_description_string); |
34 | 35 |
35 // Creates a font list from font names, styles and size. | 36 // Creates a font list from font names, styles, size and weight. |
36 FontListImpl(const std::vector<std::string>& font_names, | 37 FontListImpl(const std::vector<std::string>& font_names, |
37 int font_style, | 38 int font_style, |
38 int font_size); | 39 int font_size, |
40 int font_weight); | |
39 | 41 |
40 // Creates a font list from a Font vector. | 42 // Creates a font list from a Font vector. |
41 // All fonts in this vector should have the same style and size. | 43 // All fonts in this vector should have the same style and size. |
42 explicit FontListImpl(const std::vector<Font>& fonts); | 44 explicit FontListImpl(const std::vector<Font>& fonts); |
43 | 45 |
44 // Creates a font list from a Font. | 46 // Creates a font list from a Font. |
45 explicit FontListImpl(const Font& font); | 47 explicit FontListImpl(const Font& font); |
46 | 48 |
47 // Returns a new FontListImpl with the same font names but resized and the | 49 // Returns a new FontListImpl with the same font names but resized and the |
msw
2016/03/22 01:53:43
ditto nit: "and with the given style and weight."
| |
48 // given style. |size_delta| is the size in pixels to add to the current font | 50 // given style. |size_delta| is the size in pixels to add to the current font |
49 // size. |font_style| specifies the new style, which is a bitmask of the | 51 // size. |font_style| specifies the new style, which is a bitmask of the |
50 // values: Font::BOLD, Font::ITALIC and Font::UNDERLINE. | 52 // values: Font::ITALIC and Font::UNDERLINE. |
51 FontListImpl* Derive(int size_delta, int font_style) const; | 53 FontListImpl* Derive(int size_delta, |
54 int font_style, | |
55 gfx::Font::FontWeight weight) const; | |
52 | 56 |
53 // Returns the height of this font list, which is max(ascent) + max(descent) | 57 // Returns the height of this font list, which is max(ascent) + max(descent) |
54 // for all the fonts in the font list. | 58 // for all the fonts in the font list. |
55 int GetHeight() const; | 59 int GetHeight() const; |
56 | 60 |
57 // Returns the baseline of this font list, which is max(baseline) for all the | 61 // Returns the baseline of this font list, which is max(baseline) for all the |
58 // fonts in the font list. | 62 // fonts in the font list. |
59 int GetBaseline() const; | 63 int GetBaseline() const; |
60 | 64 |
61 // Returns the cap height of this font list. | 65 // Returns the cap height of this font list. |
62 // Currently returns the cap height of the primary font. | 66 // Currently returns the cap height of the primary font. |
63 int GetCapHeight() const; | 67 int GetCapHeight() const; |
64 | 68 |
65 // Returns the expected number of horizontal pixels needed to display the | 69 // Returns the expected number of horizontal pixels needed to display the |
66 // specified length of characters. Call GetStringWidth() to retrieve the | 70 // specified length of characters. Call GetStringWidth() to retrieve the |
67 // actual number. | 71 // actual number. |
68 int GetExpectedTextWidth(int length) const; | 72 int GetExpectedTextWidth(int length) const; |
69 | 73 |
70 // Returns the |gfx::Font::FontStyle| style flags for this font list. | 74 // Returns the |gfx::Font::FontStyle| style flags for this font list. |
71 int GetFontStyle() const; | 75 int GetFontStyle() const; |
72 | 76 |
73 // Returns the font size in pixels. | 77 // Returns the font size in pixels. |
74 int GetFontSize() const; | 78 int GetFontSize() const; |
75 | 79 |
80 // Returns the font weight. | |
81 gfx::Font::FontWeight GetFontWeight() const; | |
82 | |
76 // Returns the Font vector. | 83 // Returns the Font vector. |
77 const std::vector<Font>& GetFonts() const; | 84 const std::vector<Font>& GetFonts() const; |
78 | 85 |
79 // Returns the first font in the list. | 86 // Returns the first font in the list. |
80 const Font& GetPrimaryFont() const; | 87 const Font& GetPrimaryFont() const; |
81 | 88 |
82 private: | 89 private: |
83 friend class base::RefCounted<FontListImpl>; | 90 friend class base::RefCounted<FontListImpl>; |
84 | 91 |
85 ~FontListImpl(); | 92 ~FontListImpl(); |
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106 // TODO(derat): Remove laziness so that this can be removed. | 113 // TODO(derat): Remove laziness so that this can be removed. |
107 mutable std::string font_description_string_; | 114 mutable std::string font_description_string_; |
108 | 115 |
109 // The cached common height and baseline of the fonts in the font list. | 116 // The cached common height and baseline of the fonts in the font list. |
110 mutable int common_height_; | 117 mutable int common_height_; |
111 mutable int common_baseline_; | 118 mutable int common_baseline_; |
112 | 119 |
113 // Cached font style and size. | 120 // Cached font style and size. |
114 mutable int font_style_; | 121 mutable int font_style_; |
115 mutable int font_size_; | 122 mutable int font_size_; |
123 mutable gfx::Font::FontWeight font_weight_; | |
116 }; | 124 }; |
117 | 125 |
118 } // namespace gfx | 126 } // namespace gfx |
119 | 127 |
120 #endif // UI_GFX_FONT_LIST_IMPL_H_ | 128 #endif // UI_GFX_FONT_LIST_IMPL_H_ |
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