impeller::Font Class Reference

Describes a typeface along with any modifications to its intrinsic properties. More...

#include <font.h>

Inheritance diagram for impeller::Font:

Classes
struct	Metrics
	Describes the modifications made to the intrinsic properties of a typeface. More...

Public Member Functions
	Font (std::shared_ptr< Typeface > typeface, Metrics metrics)
	~Font ()
bool	IsValid () const
const std::shared_ptr< Typeface > &	GetTypeface () const
	The typeface whose intrinsic properties this font modifies. More...
const Metrics &	GetMetrics () const
std::size_t	GetHash () const override
bool	IsEqual (const Font &other) const override
Public Member Functions inherited from impeller::Comparable< Font >
virtual std::size_t	GetHash () const=0

Detailed Description

Describes a typeface along with any modifications to its intrinsic properties.

Definition at line 22 of file font.h.

Constructor & Destructor Documentation

Font()

impeller::Font::Font	(	std::shared_ptr< Typeface >	typeface,
		Metrics	metrics
	)

Definition at line 9 of file font.cc.

    : typeface_(std::move(typeface)), metrics_(metrics) {
  if (!typeface_) {
    return;
  }
  is_valid_ = true;
}

~Font()

impeller::Font::~Font ( )

default

Member Function Documentation

GetHash()

std::size_t impeller::Font::GetHash ( ) const

override

Definition at line 27 of file font.cc.

                              {
  return fml::HashCombine(is_valid_, typeface_ ? typeface_->GetHash() : 0u,
                          metrics_);
}

Referenced by std::hash< impeller::ScaledFont >::operator()().

GetMetrics()

const Font::Metrics & impeller::Font::GetMetrics

(

)

const

Definition at line 37 of file font.cc.

                                          {
  return metrics_;
}

Referenced by impeller::CanAppendToExistingAtlas(), impeller::TextFrame::CollectUniqueFontGlyphPairs(), impeller::DrawGlyph(), impeller::PairsFitInAtlasOfSize(), and impeller::TextContents::Render().

GetTypeface()

const std::shared_ptr< Typeface > & impeller::Font::GetTypeface

(

)

const

The typeface whose intrinsic properties this font modifies.

Returns

The typeface.

Definition at line 23 of file font.cc.

                                                       {
  return typeface_;
}

Referenced by impeller::CanAppendToExistingAtlas(), impeller::DrawGlyph(), and impeller::PairsFitInAtlasOfSize().

IsEqual()

bool impeller::Font::IsEqual ( const Font &  other ) const

overridevirtual

Implements impeller::Comparable< Font >.

Definition at line 32 of file font.cc.

                                          {
  return DeepComparePointer(typeface_, other.typeface_) &&
         is_valid_ == other.is_valid_ && metrics_ == other.metrics_;
}

References impeller::DeepComparePointer().

Referenced by std::equal_to< impeller::ScaledFont >::operator()().

IsValid()

bool impeller::Font::IsValid

(

)

const

Definition at line 19 of file font.cc.

                         {
  return is_valid_;
}

Referenced by impeller::TextRun::TextRun().

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The documentation for this class was generated from the following files:

• impeller/typographer/font.h
• impeller/typographer/font.cc