iris_ui/
view.rs

1use crate::geom::{Bounds, Insets};
2use crate::{DrawFn, InputFn, LayoutFn};
3use alloc::boxed::Box;
4use alloc::string::String;
5use core::any::Any;
6use core::fmt::{Display, Formatter};
7
8#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
9pub struct ViewId(&'static str);
10impl ViewId {
11    pub const fn new(id: &'static str) -> Self {
12        ViewId(id)
13    }
14    pub const fn as_str(&self) -> &'static str {
15        self.0
16    }
17}
18impl Display for ViewId {
19    fn fmt(&self, f: &mut Formatter<'_>) -> core::fmt::Result {
20        write!(f, "{}", self.0)
21    }
22}
23
24#[derive(PartialEq, Debug, Copy, Clone)]
25pub enum Flex {
26    Intrinsic,
27    Resize,
28}
29#[derive(Copy, Clone, PartialEq, Debug)]
30pub enum Align {
31    Start,
32    Center,
33    End,
34}
35
36#[derive(Debug)]
37pub struct View {
38    pub name: ViewId,
39    pub title: String,
40    pub bounds: Bounds,
41    pub padding: Insets,
42
43    pub v_flex: Flex,
44    pub h_flex: Flex,
45    pub h_align: Align,
46    pub v_align: Align,
47
48    pub visible: bool,
49    pub input: Option<InputFn>,
50    pub state: Option<Box<dyn Any>>,
51    pub layout: Option<LayoutFn>,
52    pub draw: Option<DrawFn>,
53}
54
55impl View {
56    pub fn position_at(mut self, x: i32, y: i32) -> View {
57        self.bounds.position.x = x;
58        self.bounds.position.y = y;
59        self
60    }
61    pub fn with_size(mut self, w: i32, h: i32) -> View {
62        self.bounds.size.w = w;
63        self.bounds.size.h = h;
64        self
65    }
66    pub fn hide(mut self) -> View {
67        self.visible = false;
68        self
69    }
70    pub fn get_state<T: 'static>(&mut self) -> Option<&mut T> {
71        if let Some(view) = &mut self.state {
72            return view.downcast_mut::<T>();
73        }
74        None
75    }
76}
77
78impl Default for View {
79    fn default() -> Self {
80        let id: ViewId = ViewId::new("noname");
81        View {
82            name: id,
83            title: id.as_str().into(),
84            bounds: Default::default(),
85            padding: Default::default(),
86
87            h_flex: Flex::Intrinsic,
88            v_flex: Flex::Intrinsic,
89            h_align: Align::Center,
90            v_align: Align::Center,
91
92            visible: true,
93            input: None,
94            state: None,
95            layout: None,
96            draw: None,
97        }
98    }
99}
iris_ui/view.rs

iris_ui/
view.rs
