mittens_engine/engine/ecs/component/
layout_bounds.rs

1use crate::engine::ecs::ComponentId;
2use crate::engine::ecs::component::Component;
3use crate::engine::graphics::bounds::Aabb;
4
5/// Layout-owned local boxes for a styled layout item.
6///
7/// The styled item's `TransformComponent` is placed at the content-box origin,
8/// so both boxes are expressed in that local coordinate space.
9#[derive(Debug, Clone, Copy)]
10pub struct LayoutBoundsComponent {
11    pub content_local: Aabb,
12    pub padding_local: Aabb,
13}
14
15impl LayoutBoundsComponent {
16    pub fn new(content_local: Aabb, padding_local: Aabb) -> Self {
17        Self {
18            content_local,
19            padding_local,
20        }
21    }
22}
23
24impl Component for LayoutBoundsComponent {
25    fn name(&self) -> &'static str {
26        "layout_bounds"
27    }
28
29    fn set_id(&mut self, _component: ComponentId) {}
30
31    fn as_any(&self) -> &dyn std::any::Any {
32        self
33    }
34
35    fn as_any_mut(&mut self) -> &mut dyn std::any::Any {
36        self
37    }
38
39    fn to_mms_ast(
40        &self,
41        _world: &crate::engine::ecs::World,
42    ) -> crate::scripting::ast::ComponentExpression {
43        use crate::engine::ecs::component::ce_helpers::{CeBuilder, array, ce_call, num};
44
45        let content = vec![
46            array(
47                self.content_local
48                    .min
49                    .iter()
50                    .map(|&value| num(value as f64))
51                    .collect(),
52            ),
53            array(
54                self.content_local
55                    .max
56                    .iter()
57                    .map(|&value| num(value as f64))
58                    .collect(),
59            ),
60        ];
61        let padding = vec![
62            array(
63                self.padding_local
64                    .min
65                    .iter()
66                    .map(|&value| num(value as f64))
67                    .collect(),
68            ),
69            array(
70                self.padding_local
71                    .max
72                    .iter()
73                    .map(|&value| num(value as f64))
74                    .collect(),
75            ),
76        ];
77
78        ce_call("LayoutBounds", "content_box", content).with_call("padding_box", padding)
79    }
80}
mittens_engine/engine/ecs/component/layout_bounds.rs

mittens_engine/engine/ecs/component/
layout_bounds.rs
