gtk4/subclass/
filter.rs

1// Take a look at the license at the top of the repository in the LICENSE file.
2
3// rustdoc-stripper-ignore-next
4//! Traits intended for subclassing [`Filter`].
5
6use glib::{translate::*, Object};
7
8use crate::{ffi, prelude::*, subclass::prelude::*, Filter, FilterMatch};
9
10pub trait FilterImpl: ObjectImpl + ObjectSubclass<Type: IsA<Filter>> {
11    #[doc(alias = "get_strictness")]
12    fn strictness(&self) -> FilterMatch {
13        self.parent_strictness()
14    }
15    fn match_(&self, item: &Object) -> bool {
16        self.parent_match_(item)
17    }
18}
19
20pub trait FilterImplExt: FilterImpl {
21    fn parent_strictness(&self) -> FilterMatch {
22        unsafe {
23            let data = Self::type_data();
24            let parent_class = data.as_ref().parent_class() as *mut ffi::GtkFilterClass;
25            let f = (*parent_class)
26                .get_strictness
27                .expect("No parent class impl for \"get_strictness\"");
28            from_glib(f(self.obj().unsafe_cast_ref::<Filter>().to_glib_none().0))
29        }
30    }
31
32    fn parent_match_(&self, item: &Object) -> bool {
33        unsafe {
34            let data = Self::type_data();
35            let parent_class = data.as_ref().parent_class() as *mut ffi::GtkFilterClass;
36            let f = (*parent_class)
37                .match_
38                .expect("No parent class impl for \"match\"");
39            from_glib(f(
40                self.obj().unsafe_cast_ref::<Filter>().to_glib_none().0,
41                item.to_glib_none().0,
42            ))
43        }
44    }
45}
46
47impl<T: FilterImpl> FilterImplExt for T {}
48
49unsafe impl<T: FilterImpl> IsSubclassable<T> for Filter {
50    fn class_init(class: &mut glib::Class<Self>) {
51        Self::parent_class_init::<T>(class);
52
53        assert_initialized_main_thread!();
54
55        let klass = class.as_mut();
56        klass.match_ = Some(filter_match::<T>);
57        klass.get_strictness = Some(filter_get_strictness::<T>);
58    }
59}
60
61unsafe extern "C" fn filter_get_strictness<T: FilterImpl>(
62    ptr: *mut ffi::GtkFilter,
63) -> ffi::GtkFilterMatch {
64    let instance = &*(ptr as *mut T::Instance);
65    let imp = instance.imp();
66
67    imp.strictness().into_glib()
68}
69
70unsafe extern "C" fn filter_match<T: FilterImpl>(
71    ptr: *mut ffi::GtkFilter,
72    itemptr: *mut glib::gobject_ffi::GObject,
73) -> glib::ffi::gboolean {
74    let instance = &*(ptr as *mut T::Instance);
75    let imp = instance.imp();
76
77    imp.match_(&from_glib_borrow(itemptr)).into_glib()
78}
gtk4/subclass/filter.rs

gtk4/subclass/
filter.rs
