gtk/subclass/
cell_renderer_toggle.rs

1// Take a look at the license at the top of the repository in the LICENSE file.
2
3use libc::c_char;
4
5use glib::subclass::prelude::*;
6use glib::translate::*;
7use glib::{GString, object::Cast};
8
9use super::cell_renderer::CellRendererImpl;
10
11use crate::{CellRendererToggle, ffi};
12
13pub trait CellRendererToggleImpl: CellRendererToggleImplExt + CellRendererImpl {
14    fn toggled(&self, path: &str) {
15        self.parent_toggled(path);
16    }
17}
18
19mod sealed {
20    pub trait Sealed {}
21    impl<T: super::CellRendererToggleImpl> Sealed for T {}
22}
23
24pub trait CellRendererToggleImplExt: ObjectSubclass + sealed::Sealed {
25    fn parent_toggled(&self, path: &str) {
26        unsafe {
27            let data = Self::type_data();
28            let parent_class = data.as_ref().parent_class() as *mut ffi::GtkCellRendererToggleClass;
29            if let Some(f) = (*parent_class).toggled {
30                f(
31                    self.obj()
32                        .unsafe_cast_ref::<CellRendererToggle>()
33                        .to_glib_none()
34                        .0,
35                    path.to_glib_none().0,
36                )
37            }
38        }
39    }
40}
41
42impl<T: CellRendererToggleImpl> CellRendererToggleImplExt for T {}
43
44unsafe impl<T: CellRendererToggleImpl> IsSubclassable<T> for CellRendererToggle {
45    fn class_init(class: &mut ::glib::Class<Self>) {
46        Self::parent_class_init::<T>(class);
47
48        if !crate::rt::is_initialized() {
49            panic!("GTK has to be initialized first");
50        }
51
52        let klass = class.as_mut();
53        klass.toggled = Some(cell_renderer_toggle_toggled::<T>);
54    }
55}
56
57unsafe extern "C" fn cell_renderer_toggle_toggled<T: CellRendererToggleImpl>(
58    ptr: *mut ffi::GtkCellRendererToggle,
59    path: *const c_char,
60) {
61    unsafe {
62        let instance = &*(ptr as *mut T::Instance);
63        let imp = instance.imp();
64
65        imp.toggled(&GString::from_glib_borrow(path))
66    }
67}
gtk/subclass/cell_renderer_toggle.rs

gtk/subclass/
cell_renderer_toggle.rs
