Record Class SDL_Finger

java.lang.Object
java.lang.Record
club.doki7.sdl3.datatype.SDL_Finger
All Implemented Interfaces:
IPointer, ISDL_Finger
@ValueBasedCandidate @UnsafeConstructor public record SDL_Finger(@NotNull MemorySegment segment) extends Record implements ISDL_Finger

Data about a single finger in a multitouch event.

Each touch event is a collection of fingers that are simultaneously in contact with the touch device (so a "touch" can be a "multitouch," in reality), and this struct reports details of the specific fingers.

Since: This struct is available since SDL 3.2.0.

See also:

  • SDL_GetTouchFingers

Structure

typedef struct SDL_Finger {
    SDL_FingerID id;
    float x;
    float y;
    float pressure;
} SDL_Finger;

Contracts

The property segment() should always be not-null (segment != NULL && !segment.equals(MemorySegment.NULL)), and properly aligned to LAYOUT.byteAlignment() bytes. To represent null pointer, you may use a Java null instead. See the documentation of IPointer.segment() for more details.

The constructor of this class is marked as UnsafeConstructor, because it does not perform any runtime check. The constructor can be useful for automatic code generators.

  • Field Details

    • LAYOUT

      public static final StructLayout LAYOUT

    • BYTES

      public static final long BYTES

    • PATH$id

      public static final MemoryLayout.PathElement PATH$id

    • PATH$x

      public static final MemoryLayout.PathElement PATH$x

    • PATH$y

      public static final MemoryLayout.PathElement PATH$y

    • PATH$pressure

      public static final MemoryLayout.PathElement PATH$pressure

    • LAYOUT$id

      public static final ValueLayout.OfLong LAYOUT$id

    • LAYOUT$x

      public static final ValueLayout.OfFloat LAYOUT$x

    • LAYOUT$y

      public static final ValueLayout.OfFloat LAYOUT$y

    • LAYOUT$pressure

      public static final ValueLayout.OfFloat LAYOUT$pressure

    • SIZE$id

      public static final long SIZE$id

    • SIZE$x

      public static final long SIZE$x

    • SIZE$y

      public static final long SIZE$y

    • SIZE$pressure

      public static final long SIZE$pressure

    • OFFSET$id

      public static final long OFFSET$id

    • OFFSET$x

      public static final long OFFSET$x

    • OFFSET$y

      public static final long OFFSET$y

    • OFFSET$pressure

      public static final long OFFSET$pressure

  • Constructor Details

    • SDL_Finger

      public SDL_Finger(@NotNull @NotNull MemorySegment segment)
      Creates an instance of a SDL_Finger record class.
      Parameters:
      segment - the value for the segment record component

  • Method Details

    • allocate

      public static SDL_Finger allocate(Arena arena)

    • allocate

      public static SDL_Finger.Ptr allocate(Arena arena, long count)

    • clone

      public static SDL_Finger clone(Arena arena, SDL_Finger src)

    • id

      @NativeType("SDL_FingerID") @Unsigned public long id()

    • id

      public SDL_Finger id(@NativeType("SDL_FingerID") @Unsigned long value)

    • x

      public float x()

    • x

      public SDL_Finger x(float value)

    • y

      public float y()

    • y

      public SDL_Finger y(float value)

    • pressure

      public float pressure()

    • pressure

      public SDL_Finger pressure(float value)

    • toString

      public final String toString()
      Returns a string representation of this record class. The representation contains the name of the class, followed by the name and value of each of the record components.
      Specified by:
      toString in class Record
      Returns:
      a string representation of this object

    • hashCode

      public final int hashCode()
      Returns a hash code value for this object. The value is derived from the hash code of each of the record components.
      Specified by:
      hashCode in class Record
      Returns:
      a hash code value for this object

    • equals

      public final boolean equals(Object o)
      Indicates whether some other object is "equal to" this one. The objects are equal if the other object is of the same class and if all the record components are equal. All components in this record class are compared with Objects::equals(Object,Object).
      Specified by:
      equals in class Record
      Parameters:
      o - the object with which to compare
      Returns:
      true if this object is the same as the o argument; false otherwise.

    • segment

      @NotNull public @NotNull MemorySegment segment()
      Returns the value of the segment record component.
      Specified by:
      segment in interface IPointer
      Returns:
      the value of the segment record component