class Gsk::ColorMatrixNode

Overview

A render node controlling the color matrix of its single child node.

Defined in:

lib/gi-crystal/src/auto/gsk-4.0/color_matrix_node.cr

Constructors

Class Method Summary

Instance Method Summary

Instance methods inherited from class Gsk::RenderNode

==(other : self) ==, bounds : Graphene::Rect bounds, draw(cr : Cairo::Context) : Nil draw, finalize finalize, hash(hasher) hash, node_type : Gsk::RenderNodeType node_type, opaque_rect : Graphene::Rect opaque_rect, serialize : GLib::Bytes serialize, to_unsafe : Pointer(Void) to_unsafe, write_to_file(filename : String) : Bool write_to_file

Class methods inherited from class Gsk::RenderNode

deserialize(bytes : GLib::Bytes, error_func : Gsk::ParseErrorFunc | Nil, user_data : Pointer(Void) | Nil) : Gsk::RenderNode | Nil deserialize, g_type : UInt64 g_type

Constructor Detail

def self.new(child : Gsk::RenderNode, color_matrix : Graphene::Matrix, color_offset : Graphene::Vec4) : self #

Creates a Gsk::RenderNode that will drawn the child with color_matrix.

In particular, the node will transform colors by applying

pixel = transpose(color_matrix) * pixel + color_offset

for every pixel. The transformation operates on unpremultiplied colors, with color components ordered R, G, B, A.


def self.new #

Initialize a new ColorMatrixNode.


Class Method Detail

def self.g_type : UInt64 #

Returns the type id (GType) registered in GLib type system.


Instance Method Detail

def ==(other : self) #
Description copied from class Reference

Returns true if this reference is the same as other. Invokes same?.


def child : Gsk::RenderNode #

Gets the child node that is getting its colors modified by the given node.


def color_matrix : Graphene::Matrix #

Retrieves the color matrix used by the node.


def color_offset : Graphene::Vec4 #

Retrieves the color offset used by the node.


def hash(hasher) #
Description copied from class Reference

See Object#hash(hasher)