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ICU 77.1: icu::FontRuns Class Reference

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

#include <RunArrays.h>

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

Stable:

ICU 3.2

Definition at line 272 of file RunArrays.h.

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.

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

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

Stable:

ICU 3.2

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

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

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

Stable:

ICU 3.2

Definition at line 357 of file RunArrays.h.

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.

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

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