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// This file was generated by gir (https://github.com/gtk-rs/gir)
// from gir-files (https://github.com/gtk-rs/gir-files)
// DO NOT EDIT
use glib::{prelude::*, translate::*};
use std::fmt;
glib::wrapper! {
/// A `GObject` value in a [`Expression`][crate::Expression].
#[doc(alias = "GtkObjectExpression")]
pub struct ObjectExpression(Shared<ffi::GtkObjectExpression>);
match fn {
ref => |ptr| ffi::gtk_expression_ref(ptr as *mut ffi::GtkExpression),
unref => |ptr| ffi::gtk_expression_unref(ptr as *mut ffi::GtkExpression),
}
}
impl glib::StaticType for ObjectExpression {
fn static_type() -> glib::Type {
unsafe { from_glib(ffi::gtk_object_expression_get_type()) }
}
}
impl ObjectExpression {
/// Creates an expression evaluating to the given `object` with a weak reference.
///
/// Once the `object` is disposed, it will fail to evaluate.
///
/// This expression is meant to break reference cycles.
///
/// If you want to keep a reference to `object`, use [`ConstantExpression::new()`][crate::ConstantExpression::new()].
/// ## `object`
/// object to watch
///
/// # Returns
///
/// a new [`Expression`][crate::Expression]
#[doc(alias = "gtk_object_expression_new")]
pub fn new(object: &impl IsA<glib::Object>) -> ObjectExpression {
assert_initialized_main_thread!();
unsafe {
from_glib_full(ffi::gtk_object_expression_new(
object.as_ref().to_glib_none().0,
))
}
}
/// Gets the object that the expression evaluates to.
///
/// # Returns
///
/// the object, or `NULL`
#[doc(alias = "gtk_object_expression_get_object")]
#[doc(alias = "get_object")]
pub fn object(&self) -> Option<glib::Object> {
unsafe { from_glib_none(ffi::gtk_object_expression_get_object(self.to_glib_none().0)) }
}
}
impl fmt::Display for ObjectExpression {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
f.write_str("ObjectExpression")
}
}