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gtk4 0.1.0

Rust bindings of the GTK 4 library
Documentation 
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// Take a look at the license at the top of the repository in the LICENSE file.

use crate::Builder;
use glib::object::{Cast, IsA};
use glib::translate::*;
use glib::Object;
use std::path::Path;

impl Builder {
    #[doc(alias = "gtk_builder_new_from_file")]
    #[doc(alias = "new_from_file")]
    pub fn from_file<T: AsRef<Path>>(file_path: T) -> Self {
        assert_initialized_main_thread!();
        unsafe {
            from_glib_full(ffi::gtk_builder_new_from_file(
                file_path.as_ref().to_glib_none().0,
            ))
        }
    }

    #[doc(alias = "gtk_builder_get_object")]
    #[doc(alias = "get_object")]
    pub fn object<T: IsA<Object>>(&self, name: &str) -> Option<T> {
        unsafe {
            Option::<Object>::from_glib_none(ffi::gtk_builder_get_object(
                self.to_glib_none().0,
                name.to_glib_none().0,
            ))
            .and_then(|obj| obj.dynamic_cast::<T>().ok())
        }
    }

    #[doc(alias = "gtk_builder_value_from_string")]
    pub fn value_from_string(
        &self,
        pspec: &glib::ParamSpec,
        string: &str,
    ) -> Result<glib::Value, glib::Error> {
        unsafe {
            let mut value = glib::Value::uninitialized();
            let mut error = std::ptr::null_mut();
            let _ = ffi::gtk_builder_value_from_string(
                self.to_glib_none().0,
                pspec.to_glib_none().0,
                string.to_glib_none().0,
                value.to_glib_none_mut().0,
                &mut error,
            );
            if error.is_null() {
                Ok(value)
            } else {
                Err(from_glib_full(error))
            }
        }
    }

    #[doc(alias = "gtk_builder_add_from_file")]
    pub fn add_from_file<T: AsRef<Path>>(&self, file_path: T) -> Result<(), glib::Error> {
        unsafe {
            let mut error = ::std::ptr::null_mut();
            ffi::gtk_builder_add_from_file(
                self.to_glib_none().0,
                file_path.as_ref().to_glib_none().0,
                &mut error,
            );
            if error.is_null() {
                Ok(())
            } else {
                Err(from_glib_full(error))
            }
        }
    }
}