libpanel/subclass/
grid.rs

1use crate::{prelude::*, Frame, Grid};
2use glib::translate::*;
3use gtk::subclass::prelude::*;
4
5pub trait PanelGridImpl: WidgetImpl {
6    fn create_frame(&self) -> Option<Frame> {
7        PanelGridImplExt::parent_create_frame(self)
8    }
9}
10
11pub trait PanelGridImplExt: ObjectSubclass {
12    fn parent_create_frame(&self) -> Option<Frame>;
13}
14
15impl<T: PanelGridImpl> PanelGridImplExt for T {
16    fn parent_create_frame(&self) -> Option<Frame> {
17        unsafe {
18            let data = T::type_data();
19            let parent_class = data.as_ref().parent_class() as *mut ffi::PanelGridClass;
20            if let Some(f) = (*parent_class).create_frame {
21                return from_glib_none(f(self.obj().unsafe_cast_ref::<Grid>().to_glib_none().0));
22            }
23            None
24        }
25    }
26}
27
28unsafe impl<T: PanelGridImpl> IsSubclassable<T> for Grid {
29    fn class_init(class: &mut glib::Class<Self>) {
30        Self::parent_class_init::<T>(class);
31        let klass = class.as_mut();
32        klass.create_frame = Some(panel_grid_create_frame::<T>);
33    }
34}
35
36unsafe extern "C" fn panel_grid_create_frame<T: PanelGridImpl>(
37    ptr: *mut ffi::PanelGrid,
38) -> *mut ffi::PanelFrame {
39    let instance = &*(ptr as *mut T::Instance);
40    let imp = instance.imp();
41
42    PanelGridImpl::create_frame(imp).to_glib_none().0
43}
libpanel/subclass/grid.rs

libpanel/subclass/
grid.rs
