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gtk/
combo_box.rs

1// Take a look at the license at the top of the repository in the LICENSE file.
2
3use crate::{ComboBox, ffi};
4use glib::object::IsA;
5use glib::translate::*;
6
7pub trait ComboBoxExtManual: IsA<ComboBox> + 'static {
8    /// Sets the active item of `self` to be the item at `index`.
9    /// ## `index_`
10    /// An index in the model passed during construction, or -1 to have
11    /// no active item
12    #[doc(alias = "gtk_combo_box_set_active")]
13    fn set_active(&self, index_: Option<u32>) {
14        let index_ = match index_ {
15            Some(i) => i as _,
16            None => -1,
17        };
18        unsafe {
19            ffi::gtk_combo_box_set_active(self.as_ref().to_glib_none().0, index_);
20        }
21    }
22
23    /// Returns the index of the currently active item, or -1 if there’s no
24    /// active item. If the model is a non-flat treemodel, and the active item
25    /// is not an immediate child of the root of the tree, this function returns
26    /// `gtk_tree_path_get_indices (path)[0]`, where
27    /// `path` is the [`TreePath`][crate::TreePath] of the active item.
28    ///
29    /// # Returns
30    ///
31    /// An integer which is the index of the currently active item,
32    ///  or -1 if there’s no active item.
33    #[doc(alias = "gtk_combo_box_get_active")]
34    #[doc(alias = "get_active")]
35    fn active(&self) -> Option<u32> {
36        match unsafe { ffi::gtk_combo_box_get_active(self.as_ref().to_glib_none().0) } {
37            -1 => None,
38            x => Some(x as _),
39        }
40    }
41}
42
43impl<O: IsA<ComboBox>> ComboBoxExtManual for O {}