xkb 0.3.0

Rusty wrapper around libxkbcommon.
Documentation 
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//            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
//                    Version 2, December 2004
//
// Copyleft (ↄ) meh. <meh@schizofreni.co> | http://meh.schizofreni.co
//
// Everyone is permitted to copy and distribute verbatim or modified
// copies of this license document, and changing it is allowed as long
// as the name is changed.
//
//            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
//   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
//
//  0. You just DO WHAT THE FUCK YOU WANT TO.

use ffi::*;
use crate::Keycode;
use crate::keymap::{Mods, Layouts, Leds, Key};
use crate::state::State;

#[derive(Debug)]
pub struct Keymap(*mut xkb_keymap);

impl Keymap {
	pub unsafe fn from_ptr(ptr: *mut xkb_keymap) -> Self {
		Keymap(ptr)
	}

	pub unsafe fn as_ptr(&self) -> *mut xkb_keymap {
		self.0
	}

	pub fn mods(&self) -> Mods {
		Mods(self)
	}

	pub fn layouts(&self) -> Layouts {
		Layouts(self)
	}

	pub fn leds(&self) -> Leds {
		Leds(self)
	}

	pub fn key(&self, key: Keycode) -> Key {
		Key(self, key)
	}

	pub fn state(&self) -> State {
		unsafe {
			State::from_ptr(xkb_state_new(self.0))
		}
	}
}

impl Clone for Keymap {
	fn clone(&self) -> Self {
		unsafe {
			Keymap(xkb_keymap_ref(self.0))
		}
	}
}

impl Drop for Keymap {
	fn drop(&mut self) {
		unsafe {
			xkb_keymap_unref(self.0);
		}
	}
}