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// Copyright 2013-2017, The Gtk-rs Project Developers.
// See the COPYRIGHT file at the top-level directory of this distribution.
// Licensed under the MIT license, see the LICENSE file or <http://opensource.org/licenses/MIT>

use glib::translate::*;
use gtk_sys;
use std::fmt;
use std::ops;

glib_wrapper! {
    /// A struct that specifies a border around a rectangular area
    /// that can be of different width on each side.
    #[derive(PartialEq, Eq, PartialOrd, Ord, Hash)]
    pub struct Border(Boxed<gtk_sys::GtkBorder>);

    match fn {
        copy => |ptr| gtk_sys::gtk_border_copy(mut_override(ptr)),
        free => |ptr| gtk_sys::gtk_border_free(ptr),
        init => |_ptr| (),
        clear => |_ptr| (),
        get_type => || gtk_sys::gtk_border_get_type(),
    }
}

impl ops::Deref for Border {
    type Target = gtk_sys::GtkBorder;

    fn deref(&self) -> &Self::Target {
        &(*self.0)
    }
}

impl ops::DerefMut for Border {
    fn deref_mut(&mut self) -> &mut Self::Target {
        &mut (*self.0)
    }
}

impl Border {
    /// Allocates a new `Border`-struct and initializes its elements to zero.
    ///
    /// # Returns
    ///
    /// a newly allocated `Border`-struct.
    ///  Free with `Border::free`
    pub fn new() -> Border {
        assert_initialized_main_thread!();
        unsafe { from_glib_full(gtk_sys::gtk_border_new()) }
    }
}

impl Default for Border {
    fn default() -> Self {
        Self::new()
    }
}

impl fmt::Debug for Border {
    fn fmt(&self, fmt: &mut fmt::Formatter) -> Result<(), fmt::Error> {
        fmt.debug_struct("Border")
            .field("left", &self.left)
            .field("right", &self.right)
            .field("top", &self.top)
            .field("bottom", &self.bottom)
            .finish()
    }
}