Graphics::TypeFace Class Reference

Base class for a loaded typeface, e.g. Sans 16pt bold. More...

#include <Asset.h>

Inheritance diagram for Graphics::TypeFace:

Collaboration diagram for Graphics::TypeFace:

Public Member Functions
virtual FontStyles	getStyle () const =0
	Style of this typeface (bold, italic, etc.) More...
virtual uint8_t	height () const =0
	Get height of typeface, same for all characters. More...
virtual uint8_t	descent () const =0
virtual GlyphMetrics	getMetrics (char ch) const =0
	Get metrics for a character. More...
virtual GlyphObject *	getGlyph (char ch, const GlyphOptions &options) const =0
	Get the glyph for a character. More...
uint8_t	baseline () const
	Get baseline relative to top of mbox. More...
uint16_t	getTextWidth (const char *text, uint16_t length) const
	Compute displayed width for a text string. More...
void	write (MetaWriter &meta) const override
Public Member Functions inherited from Graphics::AssetTemplate< AssetType::Typeface >
virtual Type	type () const override
	Asset ()
	Asset (ID id)
Public Member Functions inherited from Graphics::Asset
	Asset ()
	Asset (ID id)
bool	operator== (ID id) const
ID	id () const
virtual Type	type () const =0
virtual String	getTypeStr () const
Public Member Functions inherited from LinkedObjectTemplate< Asset >
Asset *	getNext () const
bool	insertAfter (Asset *object)
Iterator	begin () const
Iterator	end () const
Iterator	cbegin () const
Iterator	cend () const
Public Member Functions inherited from LinkedObject
virtual	~LinkedObject ()
virtual LinkedObject *	next () const
bool	insertAfter (LinkedObject *object)
bool	operator== (const LinkedObject &other) const
bool	operator!= (const LinkedObject &other) const

Additional Inherited Members
Public Types inherited from Graphics::Asset
enum	Type { Type::XX }
using	List = LinkedObjectListTemplate< Asset >
using	OwnedList = OwnedLinkedObjectListTemplate< Asset >
using	ID = AssetID
Public Types inherited from LinkedObjectTemplate< Asset >
using	Iterator = IteratorTemplate< Asset, Asset *, Asset & >
using	ConstIterator = IteratorTemplate< const Asset, const Asset *, const Asset & >
Static Public Attributes inherited from Graphics::AssetTemplate< AssetType::Typeface >
static constexpr Asset::Type	assetType

Detailed Description

Base class for a loaded typeface, e.g. Sans 16pt bold.

Member Function Documentation

baseline()

uint8_t Graphics::TypeFace::baseline ( ) const

inline

Get baseline relative to top of mbox.

descent()

virtual uint8_t Graphics::TypeFace::descent ( ) const

pure virtual

How many pixels from bottom of em-square to baseline

Implemented in Graphics::ResourceTypeface, and Graphics::LcdTypeFace.

getGlyph()

virtual GlyphObject* Graphics::TypeFace::getGlyph ( char  ch, const GlyphOptions &  options  ) const

pure virtual

Get the glyph for a character.

Parameters

ch
options	Options to control how the glyph is drawn (colour, shading, etc)

Return values

GlyphObject*

The glyph, nullptr if no glyph exists in the typeface for this character

Caller is responsible for destroying the glyph when no longer required.

Implemented in Graphics::ResourceTypeface, and Graphics::LcdTypeFace.

getMetrics()

virtual GlyphMetrics Graphics::TypeFace::getMetrics ( char  ch ) const

pure virtual

Get metrics for a character.

Implemented in Graphics::ResourceTypeface, and Graphics::LcdTypeFace.

getStyle()

virtual FontStyles Graphics::TypeFace::getStyle ( ) const

pure virtual

Style of this typeface (bold, italic, etc.)

Implemented in Graphics::ResourceTypeface, and Graphics::LcdTypeFace.

getTextWidth()

uint16_t Graphics::TypeFace::getTextWidth	(	const char *	text,
		uint16_t	length
	)		const

Compute displayed width for a text string.

height()

virtual uint8_t Graphics::TypeFace::height ( ) const

pure virtual

Get height of typeface, same for all characters.

Implemented in Graphics::ResourceTypeface, and Graphics::LcdTypeFace.

write()

void Graphics::TypeFace::write ( MetaWriter &  meta ) const

inlineoverridevirtual

Reimplemented from Graphics::Asset.

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

• Asset.h