Pango::Coverage Class Reference

A Pango::Coverage represents a map from ISO-10646 character point to Pango::CoverageLevel. More...

#include <pangomm/coverage.h>

Public Member Functions
void	reference () const
	Increment the reference count for this object.
void	unreference () const
	Decrement the reference count for this object.
PangoCoverage *	gobj ()
	Provides access to the underlying C instance.
const PangoCoverage *	gobj () const
	Provides access to the underlying C instance.
PangoCoverage *	gobj_copy () const
	Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.
	Coverage ()=delete
	Coverage (const Coverage &)=delete
Coverage &	operator= (const Coverage &)=delete
CoverageLevel	get (int index) const
	Determine whether a particular index is covered by coverage.
void	set (int index, CoverageLevel level)
	Modify a particular index within coverage.
void	max (const Glib::RefPtr< Coverage > & other) const
	Set the coverage for each index in coverage to be the max (better) value of the current coverage for the index and the coverage for the corresponding index in other.
Glib::ArrayHandle< unsigned char >	to_bytes () const
	Convert the coverage map into a flat binary format.

Static Public Member Functions
static Glib::RefPtr< Coverage >	create ()
static Glib::RefPtr< Coverage >	create (const guchar * bytes, int n_bytes)
	Convert data generated from to_bytes() back to a Pango::Coverage.

Protected Member Functions
void	operator delete (void *, std::size_t)

Related Symbols
(Note that these are not member symbols.)
Glib::RefPtr< Pango::Coverage >	wrap (PangoCoverage * object, bool take_copy=false)
	A Glib::wrap() method for this object.

Detailed Description

A Pango::Coverage represents a map from ISO-10646 character point to Pango::CoverageLevel.

It is often necessary in pango to determine if a particular font can represent a particular character, and also how well it can represent that character. Pango::Coverage holds this information.

Constructor & Destructor Documentation

Coverage() [1/2]

Pango::Coverage::Coverage ( )

delete

Coverage() [2/2]

Pango::Coverage::Coverage ( const Coverage & )

delete

Member Function Documentation

create() [1/2]

static Glib::RefPtr< Coverage > Pango::Coverage::create ( )

static

create() [2/2]

static Glib::RefPtr< Coverage > Pango::Coverage::create ( const guchar * bytes, int n_bytes )

static

Convert data generated from to_bytes() back to a Pango::Coverage.

Deprecated: 1.44: This returns nullptr

Deprecated

This returns an empty RefPtr.

Parameters

bytes	Binary data representing a Pango::Coverage.
n_bytes	The size of bytes in bytes.

Returns

A newly allocated Pango::Coverage, or nullptr if the data was invalid.

get()

CoverageLevel Pango::Coverage::get

(

int

index

)

const

Determine whether a particular index is covered by coverage.

Parameters

index

The index to check.

Returns

The coverage level of coverage for character index.

gobj() [1/2]

PangoCoverage * Pango::Coverage::gobj

(

)

Provides access to the underlying C instance.

gobj() [2/2]

const PangoCoverage * Pango::Coverage::gobj

(

)

const

Provides access to the underlying C instance.

gobj_copy()

PangoCoverage * Pango::Coverage::gobj_copy

(

)

const

Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.

max()

void Pango::Coverage::max

(

const Glib::RefPtr< Coverage > &

other

)

const

Set the coverage for each index in coverage to be the max (better) value of the current coverage for the index and the coverage for the corresponding index in other.

Deprecated: 1.44: This function does nothing

Deprecated

This function does nothing.

Parameters

other

Another Pango::Coverage.

operator delete()

void Pango::Coverage::operator delete ( void * , std::size_t  )

protected

operator=()

Coverage & Pango::Coverage::operator= ( const Coverage & )

delete

reference()

void Pango::Coverage::reference

(

)

const

Increment the reference count for this object.

You should never need to do this manually - use the object via a RefPtr instead.

set()

void Pango::Coverage::set	(	int	index,
		CoverageLevel	level )

Modify a particular index within coverage.

Parameters

index	The index to modify.
level	The new level for index.

to_bytes()

Glib::ArrayHandle< unsigned char > Pango::Coverage::to_bytes

(

)

const

Convert the coverage map into a flat binary format.

Deprecated

This returns an empty array.

Returns

An array of bytes representing the coverage map.

unreference()

void Pango::Coverage::unreference

(

)

const

Decrement the reference count for this object.

You should never need to do this manually - use the object via a RefPtr instead.

Friends And Related Symbol Documentation

wrap()

Glib::RefPtr< Pango::Coverage > wrap ( PangoCoverage * object, bool take_copy = false )

related

A Glib::wrap() method for this object.

Parameters

object	The C instance.
take_copy	False if the result should take ownership of the C instance. True if it should take a new copy or ref.

Returns

A C++ instance that wraps this C instance.