gtk4/auto/
style_provider.rs
1use crate::ffi;
6use glib::{
7 object::ObjectType as _,
8 prelude::*,
9 signal::{connect_raw, SignalHandlerId},
10 translate::*,
11};
12use std::boxed::Box as Box_;
13
14glib::wrapper! {
15 #[doc(alias = "GtkStyleProvider")]
35 pub struct StyleProvider(Interface<ffi::GtkStyleProvider>);
36
37 match fn {
38 type_ => || ffi::gtk_style_provider_get_type(),
39 }
40}
41
42impl StyleProvider {
43 pub const NONE: Option<&'static StyleProvider> = None;
44}
45
46mod sealed {
47 pub trait Sealed {}
48 impl<T: super::IsA<super::StyleProvider>> Sealed for T {}
49}
50
51pub trait StyleProviderExt: IsA<StyleProvider> + sealed::Sealed + 'static {
57 #[doc(alias = "gtk-private-changed")]
58 fn connect_gtk_private_changed<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId {
59 unsafe extern "C" fn gtk_private_changed_trampoline<
60 P: IsA<StyleProvider>,
61 F: Fn(&P) + 'static,
62 >(
63 this: *mut ffi::GtkStyleProvider,
64 f: glib::ffi::gpointer,
65 ) {
66 let f: &F = &*(f as *const F);
67 f(StyleProvider::from_glib_borrow(this).unsafe_cast_ref())
68 }
69 unsafe {
70 let f: Box_<F> = Box_::new(f);
71 connect_raw(
72 self.as_ptr() as *mut _,
73 b"gtk-private-changed\0".as_ptr() as *const _,
74 Some(std::mem::transmute::<*const (), unsafe extern "C" fn()>(
75 gtk_private_changed_trampoline::<Self, F> as *const (),
76 )),
77 Box_::into_raw(f),
78 )
79 }
80 }
81}
82
83impl<O: IsA<StyleProvider>> StyleProviderExt for O {}