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

gtk/subclass/
cell_renderer_toggle.rs
