cranpose_ui/widgets/
box_widget.rs

1//! Box widget implementation
2
3#![allow(non_snake_case)]
4
5use super::layout::Layout;
6use crate::composable;
7use crate::layout::policies::BoxMeasurePolicy;
8use crate::modifier::Modifier;
9use cranpose_core::NodeId;
10use cranpose_ui_layout::Alignment;
11
12/// Specification for Box layout behavior.
13#[derive(Clone, Copy, Debug, PartialEq)]
14pub struct BoxSpec {
15    pub content_alignment: Alignment,
16    pub propagate_min_constraints: bool,
17}
18
19impl BoxSpec {
20    pub fn new() -> Self {
21        Self::default()
22    }
23
24    pub fn content_alignment(mut self, alignment: Alignment) -> Self {
25        self.content_alignment = alignment;
26        self
27    }
28
29    pub fn propagate_min_constraints(mut self, propagate: bool) -> Self {
30        self.propagate_min_constraints = propagate;
31        self
32    }
33}
34
35impl Default for BoxSpec {
36    fn default() -> Self {
37        Self {
38            content_alignment: Alignment::TOP_START,
39            propagate_min_constraints: false,
40        }
41    }
42}
43
44#[composable]
45pub fn Box<F>(modifier: Modifier, spec: BoxSpec, content: F) -> NodeId
46where
47    F: FnMut() + 'static,
48{
49    let policy = BoxMeasurePolicy::new(spec.content_alignment, spec.propagate_min_constraints);
50    Layout(modifier, policy, content)
51}
cranpose_ui/widgets/box_widget.rs

cranpose_ui/widgets/
box_widget.rs
