| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef UI_GFX_PLATFORM_FONT_MAC_H_ |
| #define UI_GFX_PLATFORM_FONT_MAC_H_ |
| |
| #include "base/compiler_specific.h" |
| #include "base/mac/scoped_nsobject.h" |
| #include "base/macros.h" |
| #include "ui/gfx/font_render_params.h" |
| #include "ui/gfx/platform_font.h" |
| |
| namespace gfx { |
| |
| class PlatformFontMac : public PlatformFont { |
| public: |
| PlatformFontMac(); |
| explicit PlatformFontMac(NativeFont native_font); |
| PlatformFontMac(const std::string& font_name, |
| int font_size); |
| |
| // Overridden from PlatformFont: |
| Font DeriveFont(int size_delta, |
| int style, |
| Font::Weight weight) const override; |
| int GetHeight() override; |
| Font::Weight GetWeight() const override; |
| int GetBaseline() override; |
| int GetCapHeight() override; |
| int GetExpectedTextWidth(int length) override; |
| int GetStyle() const override; |
| const std::string& GetFontName() const override; |
| std::string GetActualFontNameForTesting() const override; |
| int GetFontSize() const override; |
| const FontRenderParams& GetFontRenderParams() override; |
| NativeFont GetNativeFont() const override; |
| |
| private: |
| PlatformFontMac(const std::string& font_name, |
| int font_size, |
| int font_style, |
| Font::Weight font_weight); |
| |
| PlatformFontMac(NativeFont font, |
| const std::string& font_name, |
| int font_size, |
| int font_style, |
| Font::Weight font_weight); |
| |
| ~PlatformFontMac() override; |
| |
| // Calculates and caches the font metrics and inits |render_params_|. |
| void CalculateMetricsAndInitRenderParams(); |
| |
| // The NSFont instance for this object. If this object was constructed from an |
| // NSFont instance, this holds that NSFont instance. Otherwise this NSFont |
| // instance is constructed from the name, size, and style. If there is no |
| // active font that matched those criteria a default font is used. |
| base::scoped_nsobject<NSFont> native_font_; |
| |
| // The name/size/style trio that specify the font. Initialized in the |
| // constructors. |
| const std::string font_name_; // Corresponds to -[NSFont fontFamily]. |
| const int font_size_; |
| const int font_style_; |
| const Font::Weight font_weight_; |
| |
| // Cached metrics, generated in CalculateMetrics(). |
| int height_; |
| int ascent_; |
| int cap_height_; |
| |
| // Cached average width, generated in GetExpectedTextWidth(). |
| float average_width_ = 0.0; |
| |
| // Details about how the font should be rendered. |
| FontRenderParams render_params_; |
| |
| DISALLOW_COPY_AND_ASSIGN(PlatformFontMac); |
| }; |
| |
| } // namespace gfx |
| |
| #endif // UI_GFX_PLATFORM_FONT_MAC_H_ |