The FontRuns class associates pointers to LEFontInstance objects with runs of text. More...

#include <RunArrays.h>

Inheritance diagram for icu::FontRuns:

Public Member Functions
	FontRuns (const LEFontInstance *fonts, const le_int32 limits, le_int32 count)
	Construct a `FontRuns` object from pre-existing arrays of fonts and limit indices.

	FontRuns (le_int32 initialCapacity)
	Construct an empty `FontRuns` object.

virtual	~FontRuns ()
	The destructor; virtual so that subclass destructors are invoked as well.

const LEFontInstance *	getFont (le_int32 run) const
	Get the `LEFontInstance` object associated with the given run of text.

le_int32	add (const LEFontInstance *font, le_int32 limit)
	Add an `LEFontInstance` and limit index pair to the data arrays and return the run index where the data was stored.

UClassID	getDynamicClassID () const override
	ICU "poor man's RTTI", returns a UClassID for the actual class.

Public Member Functions inherited from icu::RunArray
	RunArray (const le_int32 *limits, le_int32 count)
	Construct a `RunArray` object from a pre-existing array of limit indices.

	RunArray (le_int32 initialCapacity)
	Construct an empty `RunArray` object.

virtual	~RunArray ()
	The destructor; virtual so that subclass destructors are invoked as well.

le_int32	getCount () const
	Get the number of entries in the limit indices array.

void	reset ()
	Reset the limit indices array.

le_int32	getLimit () const
	Get the last limit index.

le_int32	getLimit (le_int32 run) const
	Get the limit index for a particular run of text.

le_int32	add (le_int32 limit)
	Add a limit index to the limit indices array and return the run index where it was stored.

UClassID	getDynamicClassID () const override
	ICU "poor man's RTTI", returns a UClassID for the actual class.

Public Member Functions inherited from icu::UObject
virtual	~UObject ()
	Destructor.

Static Public Member Functions
static UClassID	getStaticClassID ()
	ICU "poor man's RTTI", returns a UClassID for this class.

Static Public Member Functions inherited from icu::RunArray
static UClassID	getStaticClassID ()
	ICU "poor man's RTTI", returns a UClassID for this class.

Protected Member Functions
void	init (le_int32 capacity) override
	Create a data array with the given initial size.

void	grow (le_int32 capacity) override
	Grow a data array to the given initial size.

Additional Inherited Members
Protected Attributes inherited from icu::RunArray
le_bool	fClientArrays
	Set by the constructors to indicate whether or not the client supplied the data arrays.

Detailed Description

The FontRuns class associates pointers to LEFontInstance objects with runs of text.

Stable:: ICU 3.2

Definition at line 272 of file RunArrays.h.

Constructor & Destructor Documentation

◆ FontRuns() [1/2]

icu::FontRuns::FontRuns	(	const LEFontInstance **	fonts,
		const le_int32 *	limits,
		le_int32	count
	)

inline

Construct a FontRuns object from pre-existing arrays of fonts and limit indices.

Parameters

fonts	is the address of an array of pointers to `LEFontInstance` objects. This array, and the `LEFontInstance` objects to which it points must remain valid until the `FontRuns` object is destroyed.
limits	is the address of an array of limit indices. This array must remain valid until the `FontRuns` object is destroyed.
count	is the number of entries in the two arrays.

Stable:: ICU 3.2

Definition at line 397 of file RunArrays.h.

◆ FontRuns() [2/2]

icu::FontRuns::FontRuns ( le_int32 initialCapacity )

Construct an empty FontRuns object.

Clients can add font and limit indices arrays using the add method.

Parameters

initialCapacity is the initial size of the font and limit indices arrays. If this value is zero, no arrays will be allocated.

See also: add

Stable:: ICU 3.2

◆ ~FontRuns()

virtual icu::FontRuns::~FontRuns ( )

virtual

The destructor; virtual so that subclass destructors are invoked as well.

Stable:: ICU 3.2

Member Function Documentation

◆ add()

le_int32 icu::FontRuns::add	(	const LEFontInstance *	font,
		le_int32	limit
	)

Add an LEFontInstance and limit index pair to the data arrays and return the run index where the data was stored.

This method calls RunArray::add(limit) which will create or grow the arrays as needed.

If the FontRuns object was created with a client-supplied font and limit indices arrays, this method will return a run index of -1.

Subclasses should not override this method. Rather they should provide a new add method which takes a font and a limit index along with whatever other data they implement. The new add method should first call this method to grow the font and limit indices arrays, and use the returned run index to store data their own arrays.

Parameters

font	is the address of the `LEFontInstance` to add. This object must remain valid until the `FontRuns` object is destroyed.
limit	is the limit index to add

Returns: the run index where the font and limit index were stored, or -1 if the data cannot be stored.

Stable:: ICU 3.2

◆ getDynamicClassID()

UClassID icu::FontRuns::getDynamicClassID ( ) const

inlineoverridevirtual

ICU "poor man's RTTI", returns a UClassID for the actual class.

Stable:: ICU 3.2

Reimplemented from icu::UObject.

Definition at line 364 of file RunArrays.h.

◆ getFont()

const LEFontInstance * icu::FontRuns::getFont ( le_int32 run ) const

Get the LEFontInstance object associated with the given run of text.

Use RunArray::getLimit(run) to get the corresponding limit index.

Parameters

run	is the index into the font and limit indices arrays.

Returns: the LEFontInstance associated with the given text run.

See also: RunArray::getLimit

Stable:: ICU 3.2

◆ getStaticClassID()

static UClassID icu::FontRuns::getStaticClassID ( )

inlinestatic

ICU "poor man's RTTI", returns a UClassID for this class.

Stable:: ICU 3.2

Definition at line 357 of file RunArrays.h.

◆ grow()

void icu::FontRuns::grow ( le_int32 capacity )

overrideprotectedvirtual

Grow a data array to the given initial size.

This method will be called by the add method if the limit indices array is full. Subclasses which override this method must also call it from the overriding method to grow the limit indices array.

Parameters

capacity is the initial size of the data array.

See also: add

Stable:: ICU 3.2

Reimplemented from icu::RunArray.

◆ init()

void icu::FontRuns::init ( le_int32 capacity )

overrideprotectedvirtual

Create a data array with the given initial size.

This method will be called by the add method if there is no limit indices array. Subclasses which override this method must also call it from the overriding method to create the limit indices array.

Parameters

capacity is the initial size of the data array.

See also: add

Stable:: ICU 3.2

Reimplemented from icu::RunArray.

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

layoutex/layout/RunArrays.h

Public Member Functions

Static Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ FontRuns() [1/2]

◆ FontRuns() [2/2]

◆ ~FontRuns()

Member Function Documentation

◆ add()

◆ getDynamicClassID()

◆ getFont()

◆ getStaticClassID()

◆ grow()

◆ init()