relm4/binding/
bindings.rs

1use gtk::glib;
2
3use crate::binding::Binding;
4
5macro_rules! binding {
6    ($name:ident, $obj_name:literal, $ty:ty, $mod:ident) => {
7        glib::wrapper! {
8            #[doc = "A data binding storing a value of type [`"]
9            #[doc = stringify!($ty)]
10            #[doc = "`]"]
11            pub struct $name(ObjectSubclass<$mod::$name>);
12        }
13
14        impl $name {
15            #[doc = "Create a new [`"]
16            #[doc = stringify!($name)]
17            #[doc = "`]."]
18            pub fn new<T: Into<$ty>>(value: T) -> Self {
19                let this: Self = glib::Object::new();
20                this.set_value(value.into());
21                this
22            }
23        }
24
25        impl Default for $name {
26            fn default() -> Self {
27                glib::Object::new()
28            }
29        }
30
31        impl Binding for $name {
32            type Target = $ty;
33
34            fn get(&self) -> Self::Target {
35                self.value()
36            }
37
38            fn set(&self, value: Self::Target) {
39                self.set_value(value)
40            }
41        }
42
43        #[allow(missing_docs)]
44        mod $mod {
45            use std::cell::RefCell;
46
47            use glib::prelude::*;
48            use glib::{ParamSpec, Properties, Value};
49            use gtk::subclass::prelude::ObjectImpl;
50            use gtk::{
51                glib,
52                subclass::prelude::{DerivedObjectProperties, ObjectSubclass},
53            };
54
55            #[derive(Default, Properties, Debug)]
56            #[properties(wrapper_type = super::$name)]
57            /// Inner type of the data binding.
58            pub struct $name {
59                #[property(get, set)]
60                /// The primary value.
61                value: RefCell<$ty>,
62            }
63
64            impl ObjectImpl for $name {
65                fn properties() -> &'static [ParamSpec] {
66                    Self::derived_properties()
67                }
68                fn set_property(&self, id: usize, value: &Value, pspec: &ParamSpec) {
69                    self.derived_set_property(id, value, pspec)
70                }
71                fn property(&self, id: usize, pspec: &ParamSpec) -> Value {
72                    self.derived_property(id, pspec)
73                }
74            }
75
76            #[glib::object_subclass]
77            impl ObjectSubclass for $name {
78                const NAME: &'static str = $obj_name;
79                type Type = super::$name;
80            }
81        }
82    };
83}
84
85// Bool
86binding!(BoolBinding, "BoolBinding", bool, imp_bool);
87
88// Integers
89binding!(U64Binding, "U64Binding", u64, imp_u64);
90binding!(I64Binding, "I64Binding", i64, imp_i64);
91binding!(U32Binding, "U32Binding", u32, imp_u32);
92binding!(I32Binding, "I32Binding", i32, imp_i32);
93binding!(U8Binding, "U8Binding", u8, imp_u8);
94binding!(I8Binding, "I8Binding", i8, imp_i8);
95
96// Floats
97binding!(F64Binding, "F64Binding", f64, imp_f64);
98binding!(F32Binding, "F32Binding", f32, imp_f32);
99
100// String
101binding!(StringBinding, "StringBinding", String, imp_string);
relm4/binding/bindings.rs

relm4/binding/
bindings.rs
