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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.
#include "ui/gfx/font.h"
#include <algorithm>
#include "base/strings/utf_string_conversions.h"
#include "build/build_config.h"
#include "ui/gfx/platform_font.h"
namespace gfx {
////////////////////////////////////////////////////////////////////////////////
// Font, public:
Font::Font() : platform_font_(PlatformFont::CreateDefault()) {
}
Font::Font(const Font& other) : platform_font_(other.platform_font_) {
}
Font& Font::operator=(const Font& other) {
platform_font_ = other.platform_font_;
return *this;
}
#if defined(OS_APPLE)
Font::Font(NativeFont native_font)
: platform_font_(PlatformFont::CreateFromNativeFont(native_font)) {
}
#endif
Font::Font(PlatformFont* platform_font) : platform_font_(platform_font) {
}
Font::Font(const std::string& font_name, int font_size)
: platform_font_(PlatformFont::CreateFromNameAndSize(font_name,
font_size)) {
}
Font::~Font() {
}
Font Font::Derive(int size_delta, int style, Font::Weight weight) const {
if (size_delta == 0 && style == GetStyle() && weight == GetWeight())
return *this;
return platform_font_->DeriveFont(size_delta, style, weight);
}
int Font::GetHeight() const {
return platform_font_->GetHeight();
}
int Font::GetBaseline() const {
return platform_font_->GetBaseline();
}
int Font::GetCapHeight() const {
return platform_font_->GetCapHeight();
}
int Font::GetExpectedTextWidth(int length) const {
return platform_font_->GetExpectedTextWidth(length);
}
int Font::GetStyle() const {
return platform_font_->GetStyle();
}
const std::string& Font::GetFontName() const {
return platform_font_->GetFontName();
}
std::string Font::GetActualFontName() const {
return platform_font_->GetActualFontName();
}
int Font::GetFontSize() const {
return platform_font_->GetFontSize();
}
Font::Weight Font::GetWeight() const {
return platform_font_->GetWeight();
}
const FontRenderParams& Font::GetFontRenderParams() const {
return platform_font_->GetFontRenderParams();
}
#if defined(OS_APPLE)
NativeFont Font::GetNativeFont() const {
return platform_font_->GetNativeFont();
}
#endif
#ifndef NDEBUG
std::ostream& operator<<(std::ostream& stream, const Font::Weight weight) {
return stream << static_cast<int>(weight);
}
#endif
Font::Weight FontWeightFromInt(int weight) {
static const Font::Weight weights[] = {
Font::Weight::INVALID, Font::Weight::THIN, Font::Weight::EXTRA_LIGHT,
Font::Weight::LIGHT, Font::Weight::NORMAL, Font::Weight::MEDIUM,
Font::Weight::SEMIBOLD, Font::Weight::BOLD, Font::Weight::EXTRA_BOLD,
Font::Weight::BLACK};
const Font::Weight* next_bigger_weight = std::lower_bound(
std::begin(weights), std::end(weights), weight,
[](const Font::Weight& a, const int& b) {
return static_cast<std::underlying_type<Font::Weight>::type>(a) < b;
});
if (next_bigger_weight != std::end(weights))
return *next_bigger_weight;
return Font::Weight::INVALID;
}
} // namespace gfx
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