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_IOS_H_ 6 #define UI_GFX_PLATFORM_FONT_IOS_H_ 7 8 #include "ui/gfx/platform_font.h" 9 10 namespace gfx { 11 12 class PlatformFontIOS : public PlatformFont { 13 public: 14 PlatformFontIOS(); 15 explicit PlatformFontIOS(NativeFont native_font); 16 PlatformFontIOS(const std::string& font_name, 17 int font_size); 18 19 // Overridden from PlatformFont: 20 virtual Font DeriveFont(int size_delta, int style) const OVERRIDE; 21 virtual int GetHeight() const OVERRIDE; 22 virtual int GetBaseline() const OVERRIDE; 23 virtual int GetCapHeight() const OVERRIDE; 24 virtual int GetAverageCharacterWidth() const OVERRIDE; 25 virtual int GetStringWidth(const base::string16& text) 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 PlatformFontIOS(const std::string& font_name, int font_size, int style); ~PlatformFontIOS()35 virtual ~PlatformFontIOS() {} 36 37 // Initialize the object with the specified parameters. 38 void InitWithNameSizeAndStyle(const std::string& font_name, 39 int font_size, 40 int style); 41 42 // Calculate and cache the font metrics. 43 void CalculateMetrics(); 44 45 std::string font_name_; 46 int font_size_; 47 int style_; 48 49 // Cached metrics, generated at construction. 50 int height_; 51 int ascent_; 52 int cap_height_; 53 int average_width_; 54 55 DISALLOW_COPY_AND_ASSIGN(PlatformFontIOS); 56 }; 57 58 } // namespace gfx 59 60 #endif // UI_GFX_PLATFORM_FONT_IOS_H_ 61