fui_controls 0.18.0

Standard controls for FUI UI Framework
Documentation 
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
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116

use std::cell::RefCell;
use std::rc::Rc;

use fui_core::*;
use typed_builder::TypedBuilder;

#[derive(TypedBuilder)]
pub struct DataHolder<T> {
    pub data: T,
}

impl<T: 'static> DataHolder<T> {
    pub fn to_view(
        self,
        style: Option<Box<dyn Style<Self>>>,
        context: ViewContext,
    ) -> Rc<RefCell<dyn ControlObject>> {
        StyledControl::new(
            self,
            style.unwrap_or_else(|| {
                Box::new(DefaultDataHolderStyle::new(
                    DefaultDataHolderStyleParams::builder().build(),
                ))
            }),
            context,
        )
    }
}

//
// Default DataHolder Style
//

#[derive(TypedBuilder)]
pub struct DefaultDataHolderStyleParams {}

pub struct DefaultDataHolderStyle;

impl DefaultDataHolderStyle {
    pub fn new(_params: DefaultDataHolderStyleParams) -> Self {
        DefaultDataHolderStyle {}
    }
}

impl<T: 'static> Style<DataHolder<T>> for DefaultDataHolderStyle {
    fn setup(&mut self, _data: &mut DataHolder<T>, _control_context: &mut ControlContext) {}

    fn handle_event(
        &mut self,
        _data: &mut DataHolder<T>,
        _control_context: &mut ControlContext,
        _drawing_context: &mut FuiDrawingContext,
        _event_context: &mut dyn EventContext,
        _event: ControlEvent,
    ) {
    }

    fn measure(
        &mut self,
        _data: &mut DataHolder<T>,
        control_context: &mut ControlContext,
        drawing_context: &mut FuiDrawingContext,
        size: Size,
    ) -> Size {
        let children = control_context.get_children();
        let content_size = match children.into_iter().next() {
            Some(ref content) => {
                content.borrow_mut().measure(drawing_context, size);
                let rect = content.borrow().get_rect();
                Size::new(rect.width, rect.height)
            }
            _ => Size::empty(),
        };

        content_size
    }

    fn set_rect(
        &mut self,
        _data: &mut DataHolder<T>,
        control_context: &mut ControlContext,
        drawing_context: &mut FuiDrawingContext,
        rect: Rect,
    ) {
        let children = control_context.get_children();
        if let Some(child) = children.into_iter().next() {
            child.borrow_mut().set_rect(drawing_context, rect);
        }
    }

    fn hit_test(
        &self,
        _data: &DataHolder<T>,
        control_context: &ControlContext,
        point: Point,
    ) -> Option<Rc<RefCell<dyn ControlObject>>> {
        let children = control_context.get_children();
        match children.into_iter().next() {
            Some(child) => child.borrow_mut().hit_test(point),
            _ => None,
        }
    }

    fn draw(
        &mut self,
        _data: &DataHolder<T>,
        control_context: &ControlContext,
        drawing_context: &mut FuiDrawingContext,
    ) {
        let children = control_context.get_children();
        match children.into_iter().next() {
            Some(child) => child.borrow_mut().draw(drawing_context),
            _ => (),
        }
    }
}