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 virtual Font DeriveFont(int size_delta, int style) const OVERRIDE; 23 virtual int GetHeight() const OVERRIDE; 24 virtual int GetBaseline() const OVERRIDE; 25 virtual int GetCapHeight() const OVERRIDE; 26 virtual int GetExpectedTextWidth(int length) const OVERRIDE; 27 virtual int GetStyle() const OVERRIDE; 28 virtual std::string GetFontName() const OVERRIDE; 29 virtual std::string GetActualFontNameForTesting() const OVERRIDE; 30 virtual int GetFontSize() const OVERRIDE; 31 virtual NativeFont GetNativeFont() const OVERRIDE; 32 33 private: 34 PlatformFontMac(const std::string& font_name, int font_size, int font_style); 35 virtual ~PlatformFontMac(); 36 37 // Calculates and caches the font metrics. 38 void CalculateMetrics(); 39 40 // The NSFont instance for this object. If this object was constructed from an 41 // NSFont instance, this holds that NSFont instance. Otherwise this NSFont 42 // instance is constructed from the name, size, and style, and if there is no 43 // active font that matched those criteria, this object may be nil. 44 base::scoped_nsobject<NSFont> native_font_; 45 46 // The name/size/style trio that specify the font. Initialized in the 47 // constructors. 48 std::string font_name_; // Corresponds to -[NSFont fontFamily]. 49 int font_size_; 50 int font_style_; 51 52 // Cached metrics, generated in CalculateMetrics(). 53 int height_; 54 int ascent_; 55 int cap_height_; 56 int average_width_; 57 58 DISALLOW_COPY_AND_ASSIGN(PlatformFontMac); 59 }; 60 61 } // namespace gfx 62 63 #endif // UI_GFX_PLATFORM_FONT_MAC_H_ 64