gsk4/auto/
color_matrix_node.rs

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
// This file was generated by gir (https://github.com/gtk-rs/gir)
// from gir-files (https://github.com/gtk-rs/gir-files)
// DO NOT EDIT

use crate::{ffi, RenderNode};
use glib::{prelude::*, translate::*};

glib::wrapper! {
    /// A render node controlling the color matrix of its single child node.
    #[doc(alias = "GskColorMatrixNode")]
    pub struct ColorMatrixNode(Shared<ffi::GskColorMatrixNode>);

    match fn {
        ref => |ptr| ffi::gsk_render_node_ref(ptr as *mut ffi::GskRenderNode),
        unref => |ptr| ffi::gsk_render_node_unref(ptr as *mut ffi::GskRenderNode),
    }
}

impl StaticType for ColorMatrixNode {
    fn static_type() -> glib::Type {
        unsafe { from_glib(ffi::gsk_color_matrix_node_get_type()) }
    }
}

impl ColorMatrixNode {
    /// Creates a [`RenderNode`][crate::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.
    /// ## `child`
    /// The node to draw
    /// ## `color_matrix`
    /// The matrix to apply
    /// ## `color_offset`
    /// Values to add to the color
    ///
    /// # Returns
    ///
    /// A new [`RenderNode`][crate::RenderNode]
    #[doc(alias = "gsk_color_matrix_node_new")]
    pub fn new(
        child: impl AsRef<RenderNode>,
        color_matrix: &graphene::Matrix,
        color_offset: &graphene::Vec4,
    ) -> ColorMatrixNode {
        skip_assert_initialized!();
        unsafe {
            from_glib_full(ffi::gsk_color_matrix_node_new(
                child.as_ref().to_glib_none().0,
                color_matrix.to_glib_none().0,
                color_offset.to_glib_none().0,
            ))
        }
    }

    /// Gets the child node that is getting its colors modified by the given @self.
    ///
    /// # Returns
    ///
    /// The child that is getting its colors modified
    #[doc(alias = "gsk_color_matrix_node_get_child")]
    #[doc(alias = "get_child")]
    pub fn child(&self) -> RenderNode {
        unsafe { from_glib_none(ffi::gsk_color_matrix_node_get_child(self.to_glib_none().0)) }
    }

    /// Retrieves the color matrix used by the @self.
    ///
    /// # Returns
    ///
    /// a 4x4 color matrix
    #[doc(alias = "gsk_color_matrix_node_get_color_matrix")]
    #[doc(alias = "get_color_matrix")]
    pub fn color_matrix(&self) -> graphene::Matrix {
        unsafe {
            from_glib_none(ffi::gsk_color_matrix_node_get_color_matrix(
                self.to_glib_none().0,
            ))
        }
    }

    /// Retrieves the color offset used by the @self.
    ///
    /// # Returns
    ///
    /// a color vector
    #[doc(alias = "gsk_color_matrix_node_get_color_offset")]
    #[doc(alias = "get_color_offset")]
    pub fn color_offset(&self) -> graphene::Vec4 {
        unsafe {
            from_glib_none(ffi::gsk_color_matrix_node_get_color_offset(
                self.to_glib_none().0,
            ))
        }
    }
}