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// 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 "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) const override;
int GetHeight() const override;
int GetBaseline() const override;
int GetCapHeight() const override;
int GetExpectedTextWidth(int length) const 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);
~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, and if there is no
// active font that matched those criteria, this object may be nil.
base::scoped_nsobject<NSFont> native_font_;
// The name/size/style trio that specify the font. Initialized in the
// constructors.
std::string font_name_; // Corresponds to -[NSFont fontFamily].
int font_size_;
int font_style_;
// Cached metrics, generated in CalculateMetrics().
int height_;
int ascent_;
int cap_height_;
int average_width_;
// 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_