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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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