Package org.freedesktop.harfbuzz

Class Feature

java.lang.Object

org.javagi.base.ProxyInstance

org.freedesktop.harfbuzz.Feature

All Implemented Interfaces:

Proxy

@Generated("io.github.jwharm.JavaGI")
public class Feature
extends ProxyInstance

The hb_feature_t is the structure that holds information about requested feature application. The feature will be applied with the given value to all glyphs which are in clusters between start (inclusive) and end (exclusive). Setting start to HB_FEATURE_GLOBAL_START and end to HB_FEATURE_GLOBAL_END specifies that the feature always applies to the entire buffer.

Constructor Summary

Constructors

Constructor	Description
Feature()	Allocate a new Feature.
Feature(Arena arena)	Allocate a new Feature.
Feature(MemorySegment address)	Create a Feature proxy instance for the provided memory address.
Feature(Tag tag, int value, int start, int end)	Allocate a new Feature with the fields set to the provided values.
Feature(Tag tag, int value, int start, int end, Arena arena)	Allocate a new Feature with the fields set to the provided values.

Method Summary

Modifier and Type	Method	Description
void	featureToString(@Nullable Out<String[]> buf)	Converts a hb_feature_t into a NULL-terminated string in the format understood by hb_feature_from_string().
static MemoryLayout	getMemoryLayout()	The memory layout of the native struct.
static @Nullable Type	getType()	Get the GType of the Feature class
int	readEnd()	Read the value of the field end.
int	readStart()	Read the value of the field start.
Tag	readTag()	Read the value of the field tag.
int	readValue()	Read the value of the field value.
void	writeEnd(int end)	Write a value in the field end.
void	writeStart(int start)	Write a value in the field start.
void	writeTag(Tag tag)	Write a value in the field tag.
void	writeValue(int value)	Write a value in the field value.

Methods inherited from class org.javagi.base.ProxyInstance

equals, handle, hashCode

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Feature

public Feature(MemorySegment address)

Create a Feature proxy instance for the provided memory address.

Parameters:

address - the memory address of the native object

Feature

public Feature(Arena arena)

Allocate a new Feature.

Parameters:

arena - to control the memory allocation scope

Feature

public Feature()

Allocate a new Feature. The memory is allocated with Arena.ofAuto().

Feature

public Feature(Tag tag,
 int value,
 int start,
 int end,
 Arena arena)

Allocate a new Feature with the fields set to the provided values.

Parameters:

tag - value for the field tag

value - value for the field value

start - value for the field start

end - value for the field end

arena - to control the memory allocation scope

Feature

public Feature(Tag tag,
 int value,
 int start,
 int end)

Allocate a new Feature with the fields set to the provided values. The memory is allocated with Arena.ofAuto().

Parameters:

tag - value for the field tag

value - value for the field value

start - value for the field start

end - value for the field end

Method Details

getType

public static @Nullable Type getType()

Get the GType of the Feature class

Returns:

the GType

getMemoryLayout

public static MemoryLayout getMemoryLayout()

The memory layout of the native struct.

Returns:

the memory layout

readTag

public Tag readTag()

Read the value of the field tag.

Returns:

The value of the field tag

writeTag

public void writeTag(Tag tag)

Write a value in the field tag.

Parameters:

tag - The new value for the field tag

readValue

public int readValue()

Read the value of the field value.

Returns:

The value of the field value

writeValue

public void writeValue(int value)

Write a value in the field value.

Parameters:

value - The new value for the field value

readStart

public int readStart()

Read the value of the field start.

Returns:

The value of the field start

writeStart

public void writeStart(int start)

Write a value in the field start.

Parameters:

start - The new value for the field start

readEnd

public int readEnd()

Read the value of the field end.

Returns:

The value of the field end

writeEnd

public void writeEnd(int end)

Write a value in the field end.

Parameters:

end - The new value for the field end

featureToString

public void featureToString(@Nullable Out<String[]> buf)

Converts a hb_feature_t into a NULL-terminated string in the format understood by hb_feature_from_string(). The client in responsible for allocating big enough size for buf, 128 bytes is more than enough.

Note that the feature value will be omitted if it is '1', but the string won't include any whitespace.

Parameters:

buf - output string

Since:

0.9.5