class: GraphenePoint

[28:7] extends: object

A point with two coordinates.

Members

handleObj
lib
retainedCallbacks
signalHandlerNames
signalSetterHandlers

Methods

GraphenePoint (Handle = null)

Allocates a new #graphene_point_t structure. The coordinates of the returned point are (0, 0). It's possible to chain this function with graphene_point_init() or graphene_point_init_from_point(), e.g.: |[ graphene_point_t * point_new (float x, float y) { return graphene_point_init (graphene_point_alloc (), x, y); } graphene_point_t * point_copy (const graphene_point_t *p) { return graphene_point_init_from_point (graphene_point_alloc (), p); } ]|
- @p Handle is an optional native handle or wrapper whose handle to adopt; when the native constructor is called.
toNativeHandle (Source)

Normalizes a constructor argument into a raw pointer carrier. Accepts a raw NativeHandle, a raw NativeBuffer returned from fn.call(...), another generated wrapper exposing handle(), or null. Returns null when the argument carries no pointer.
- @p Source is the raw handle, raw buffer, wrapper, or null.
- @r A raw pointer carrier or null when no pointer is present.
getLib ()

Returns the opened native library for this generated wrapper.
- @r The opened native library.
handle ()

Returns the wrapped NativeHandle.
- @r The wrapped NativeHandle.
isNull ()

Returns true when the wrapped handle is null.
- @r A bool.
describe ()

Returns a small string for debugging generated wrappers.
- @r A string.
distance (object b)

Computes the distance between @a and @b.
- @p b is a #graphene_point_t.
- @p d_x is distance component on the X axis.
- @p d_y is distance component on the Y axis.
- @r the distance between the two points.
distance_squared (object b)

Computes the squared distance between @a and @b.
- @p b is a #graphene_point_t.
- @r the distance between the two points, squared.
equal (object b)

Checks if the two points @a and @b point to the same coordinates. This function accounts for floating point fluctuations; if you want to control the fuzziness of the match, you can use graphene_point_near() instead.
- @p b is a #graphene_point_t.
- @r true if the points have the same coordinates.
free ()

Frees the resources allocated by graphene_point_alloc().
- @r None.
init (double x, double y)

Initializes @p to the given @x and @y coordinates. It's safe to call this function multiple times.
- @p x is the X coordinate.
- @p y is the Y coordinate.
- @r the initialized point.
init_from_point (object src)

Initializes @p with the same coordinates of @src.
- @p src is the #graphene_point_t to use.
- @r the initialized point.
init_from_vec2 (object src)

Initializes @p with the coordinates inside the given #graphene_vec2_t.
- @p src is a #graphene_vec2_t.
- @r the initialized point.
interpolate (object b, double factor)

Linearly interpolates the coordinates of @a and @b using the given
- @factor. ``
- @p b is a #graphene_point_t.
- @p factor is the linear interpolation factor.
- @p res is return location for the interpolated point.
- @r None.
near (object b, double epsilon)

Checks whether the two points @a and @b are within the threshold of
- @epsilon. ``
- @p b is a #graphene_point_t.
- @p epsilon is threshold between the two points.
- @r true if the distance is within @epsilon.
to_vec2 ()

Stores the coordinates of the given #graphene_point_t into a #graphene_vec2_t.
- @p v is return location for the vertex.
- @r None.

class: GraphenePointLayout

[12:14] static extends: object

Generated struct layout helper for GIR record Point.

Methods

layout ()

Returns the Panama struct layout for Point.