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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 | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef UI_GFX_PLATFORM_FONT_MAC_H_ | |
6 #define UI_GFX_PLATFORM_FONT_MAC_H_ | |
7 | |
8 #include "base/compiler_specific.h" | |
9 #include "base/mac/scoped_nsobject.h" | |
10 #include "ui/gfx/platform_font.h" | |
11 | |
12 namespace gfx { | |
13 | |
14 class PlatformFontMac : public PlatformFont { | |
15 public: | |
16 PlatformFontMac(); | |
17 explicit PlatformFontMac(NativeFont native_font); | |
18 PlatformFontMac(const std::string& font_name, | |
19 int font_size); | |
20 | |
21 // Overridden from PlatformFont: | |
22 Font DeriveFont(int size_delta, int style) const override; | |
23 int GetHeight() const override; | |
24 int GetBaseline() const override; | |
25 int GetCapHeight() const override; | |
26 int GetExpectedTextWidth(int length) const override; | |
27 int GetStyle() const override; | |
28 std::string GetFontName() const override; | |
29 std::string GetActualFontNameForTesting() const override; | |
30 int GetFontSize() const override; | |
31 const FontRenderParams& GetFontRenderParams() const override; | |
32 NativeFont GetNativeFont() const override; | |
33 | |
34 private: | |
35 PlatformFontMac(const std::string& font_name, int font_size, int font_style); | |
36 ~PlatformFontMac() override; | |
37 | |
38 // Calculates and caches the font metrics. | |
39 void CalculateMetrics(); | |
40 | |
41 // The NSFont instance for this object. If this object was constructed from an | |
42 // NSFont instance, this holds that NSFont instance. Otherwise this NSFont | |
43 // instance is constructed from the name, size, and style, and if there is no | |
44 // active font that matched those criteria, this object may be nil. | |
45 base::scoped_nsobject<NSFont> native_font_; | |
46 | |
47 // The name/size/style trio that specify the font. Initialized in the | |
48 // constructors. | |
49 std::string font_name_; // Corresponds to -[NSFont fontFamily]. | |
50 int font_size_; | |
51 int font_style_; | |
52 | |
53 // Cached metrics, generated in CalculateMetrics(). | |
54 int height_; | |
55 int ascent_; | |
56 int cap_height_; | |
57 int average_width_; | |
58 | |
59 DISALLOW_COPY_AND_ASSIGN(PlatformFontMac); | |
60 }; | |
61 | |
62 } // namespace gfx | |
63 | |
64 #endif // UI_GFX_PLATFORM_FONT_MAC_H_ | |
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