class: GrapheneVec2

[29:7] extends: object

A structure capable of holding a vector with two dimensions, x and y. The contents of the #graphene_vec2_t structure are private and should never be accessed directly.

Members

handleObj
lib
retainedCallbacks
signalHandlerNames
signalSetterHandlers

Methods

GrapheneVec2 (Handle = null)

Allocates a new #graphene_vec2_t structure. The contents of the returned structure are undefined. Use graphene_vec2_init() to initialize the vector.
- @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.
add (object b)

Adds each component of the two passed vectors and places each result into the components of @res.
- @p b is a #graphene_vec2_t.
- @p res is return location for the result.
- @r None.
divide (object b)

Divides each component of the first operand @a by the corresponding component of the second operand @b, and places the results into the vector @res.
- @p b is a #graphene_vec2_t.
- @p res is return location for the result.
- @r None.
dot (object b)

Computes the dot product of the two given vectors.
- @p b is a #graphene_vec2_t.
- @r the dot product of the vectors.
equal (object v2)

Checks whether the two given #graphene_vec2_t are equal.
- @p v2 is a #graphene_vec2_t.
- @r true if the two vectors are equal, and false otherwise.
free ()

Frees the resources allocated by @v
- @r None.
get_x ()

Retrieves the X component of the #graphene_vec2_t.
- @r the value of the X component.
get_y ()

Retrieves the Y component of the #graphene_vec2_t.
- @r the value of the Y component.
init (double x, double y)

Initializes a #graphene_vec2_t using the given values. This function can be called multiple times.
- @p x is the X field of the vector.
- @p y is the Y field of the vector.
- @r the initialized vector.
init_from_float (list src)

Initializes @v with the contents of the given array.
- @p src is an array of floating point values with at least two elements.
- @r the initialized vector.
init_from_vec2 (object src)

Copies the contents of @src into @v.
- @p src is a #graphene_vec2_t.
- @r the initialized vector.
interpolate (object v2, double factor)

Linearly interpolates @v1 and @v2 using the given @factor.
- @p v2 is a #graphene_vec2_t.
- @p factor is the interpolation factor.
- @p res is the interpolated vector.
- @r None.
length ()

Computes the length of the given vector.
- @r the length of the vector.
max (object b)

Compares the two given vectors and places the maximum values of each component into @res.
- @p b is a #graphene_vec2_t.
- @p res is the resulting vector.
- @r None.
min (object b)

Compares the two given vectors and places the minimum values of each component into @res.
- @p b is a #graphene_vec2_t.
- @p res is the resulting vector.
- @r None.
multiply (object b)

Multiplies each component of the two passed vectors and places each result into the components of @res.
- @p b is a #graphene_vec2_t.
- @p res is return location for the result.
- @r None.
near (object v2, double epsilon)

Compares the two given #graphene_vec2_t vectors and checks whether their values are within the given @epsilon.
- @p v2 is a #graphene_vec2_t.
- @p epsilon is the threshold between the two vectors.
- @r true if the two vectors are near each other.
negate ()

Negates the given #graphene_vec2_t.
- @p res is return location for the result vector.
- @r None.
normalize ()

Computes the normalized vector for the given vector @v.
- @p res is return location for the normalized vector.
- @r None.
scale (double factor)

Multiplies all components of the given vector with the given scalar
- @factor. ``
- @p factor is the scalar factor.
- @p res is return location for the result vector.
- @r None.
subtract (object b)

Subtracts from each component of the first operand @a the corresponding component of the second operand @b and places each result into the components of @res.
- @p b is a #graphene_vec2_t.
- @p res is return location for the result.
- @r None.
to_float ()

Stores the components of @v into an array.
- @p dest is return location for an array of floating point values with at least 2 elements.
- @r None.

class: GrapheneVec2Layout

[12:14] static extends: object

Generated struct layout helper for GIR record Vec2.

Methods

layout ()

Returns the Panama struct layout for Vec2.