gtk/subclass/
cell_renderer_text.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::{CellRendererText, ffi};
13
14pub trait CellRendererTextImpl:
15    CellRendererImpl + ObjectSubclass<Type: IsA<CellRendererText>>
16{
17    fn edited(&self, path: &str, new_text: &str) {
18        self.parent_edited(path, new_text);
19    }
20}
21
22pub trait CellRendererTextImplExt: CellRendererTextImpl {
23    fn parent_edited(&self, path: &str, new_text: &str) {
24        unsafe {
25            let data = Self::type_data();
26            let parent_class = data.as_ref().parent_class() as *mut ffi::GtkCellRendererTextClass;
27            if let Some(f) = (*parent_class).edited {
28                f(
29                    self.obj()
30                        .unsafe_cast_ref::<CellRendererText>()
31                        .to_glib_none()
32                        .0,
33                    path.to_glib_none().0,
34                    new_text.to_glib_none().0,
35                )
36            }
37        }
38    }
39}
40
41impl<T: CellRendererTextImpl> CellRendererTextImplExt for T {}
42
43unsafe impl<T: CellRendererTextImpl> IsSubclassable<T> for CellRendererText {
44    fn class_init(class: &mut ::glib::Class<Self>) {
45        Self::parent_class_init::<T>(class);
46
47        if !crate::rt::is_initialized() {
48            panic!("GTK has to be initialized first");
49        }
50
51        let klass = class.as_mut();
52        klass.edited = Some(cell_renderer_text_edited::<T>);
53    }
54}
55
56unsafe extern "C" fn cell_renderer_text_edited<T: CellRendererTextImpl>(
57    ptr: *mut ffi::GtkCellRendererText,
58    path: *const c_char,
59    new_text: *const c_char,
60) {
61    unsafe {
62        let instance = &*(ptr as *mut T::Instance);
63        let imp = instance.imp();
64
65        imp.edited(
66            &GString::from_glib_borrow(path),
67            &GString::from_glib_borrow(new_text),
68        )
69    }
70}
gtk/subclass/cell_renderer_text.rs

gtk/subclass/
cell_renderer_text.rs
