Interface ColorLineGetColorStopsFunc

All Superinterfaces:

FunctionPointer

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
@Generated("org.javagi.JavaGI")
public interface ColorLineGetColorStopsFunc
extends FunctionPointer

Functional interface declaration of the ColorLineGetColorStopsFunc callback.

See Also:

• run(ColorLine, MemorySegment, int, Out)

Method Summary

Modifier and Type	Method	Description
int	run(ColorLine colorLine, @Nullable MemorySegment colorLineData, int start, @Nullable Out<ColorStop[]> colorStops)	A virtual method for the hb_color_line_t to fetch color stops.
default MemorySegment	toCallback(Arena arena)	Creates a native function pointer to the upcall(MemorySegment, MemorySegment, int, MemorySegment, MemorySegment, MemorySegment) method.
default int	upcall(MemorySegment colorLine, MemorySegment colorLineData, int start, MemorySegment count, MemorySegment colorStops, MemorySegment userData)	The upcall method is called from native code.

Method Details

run

int run(ColorLine colorLine,
 @Nullable MemorySegment colorLineData,
 int start,
 @Nullable Out<ColorStop[]> colorStops)

A virtual method for the hb_color_line_t to fetch color stops.

Parameters:

colorLine - a hb_color_line_t object

colorLineData - the data accompanying colorLine

start - the index of the first color stop to return

colorStops - Array of hb_color_stop_t to populate

Returns:

the total number of color stops in colorLine

Since:

7.0.0

upcall

default int upcall(MemorySegment colorLine,
 MemorySegment colorLineData,
 int start,
 MemorySegment count,
 MemorySegment colorStops,
 MemorySegment userData)

The upcall method is called from native code. The parameters are marshaled and run(ColorLine, MemorySegment, int, Out) is executed.

toCallback

default MemorySegment toCallback(Arena arena)

Creates a native function pointer to the upcall(MemorySegment, MemorySegment, int, MemorySegment, MemorySegment, MemorySegment) method.

Specified by:

toCallback in interface FunctionPointer

Parameters:

arena - the arena in which the function pointer is allocated

Returns:

the native function pointer