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use std::mem;
use libc;
use x11::xlib as x;
use {Atom, Display, Drawable, GetDisplay, Image, Rectangle, X11Error};
#[derive(Copy, Clone, PartialEq, Eq)]
pub struct Window {
pub(super) display: *mut x::Display,
pub(super) inner: x::Window,
}
pub struct WindowAttributes {
pub(super) display: *mut x::Display,
pub(self) inner: *mut x::XWindowAttributes,
}
impl Window {
pub fn create(
display: &Display,
parent: Option<Window>,
location: Rectangle,
) -> Result<Window, X11Error> {
let parent = match parent {
Some(parent) => parent,
None => display.get_default_root_window()?,
};
let visual = display.default_visual(0);
let window = unsafe {
x::XCreateWindow(
display.as_raw(),
parent.as_raw(),
location.x as i32,
location.y as i32,
location.width,
location.height,
0,
0,
0,
visual.as_raw(),
0,
0 as *mut x::XSetWindowAttributes,
)
};
Ok(Window {
display: display.as_raw(),
inner: window,
})
}
pub fn create_from_handle(display: &Display, id: u64) -> Result<Window, X11Error> {
Ok(Window {
display: display.as_raw(),
inner: id,
})
}
pub fn get_attributes(&self) -> Result<WindowAttributes, X11Error> {
let attr = unsafe {
libc::malloc(mem::size_of::<x::XWindowAttributes>()) as *mut x::XWindowAttributes
};
let result = unsafe { x::XGetWindowAttributes(self.display, self.inner, attr) };
match result {
0 => Err(X11Error::GetAttributesError),
_ => Ok(WindowAttributes {
display: self.display,
inner: attr,
}),
}
}
pub fn as_raw(&self) -> x::Window {
self.inner
}
pub fn get_image(&self) -> Result<Image, X11Error> {
let attr = self.get_attributes()?;
Drawable::get_image(
self,
Rectangle::new(
attr.get_x(),
attr.get_y(),
attr.get_width(),
attr.get_height(),
),
)
}
pub fn change_property(&self, key: &Atom, val: &Atom) {
use std::mem::transmute;
let v = val.as_raw();
unsafe {
x::XChangeProperty(
self.display,
self.inner,
key.as_raw(),
x::XA_ATOM,
32,
x::PropModeReplace,
transmute(&v),
1,
);
}
}
}
impl GetDisplay for Window {
fn get_display(&self) -> *mut x::Display {
self.display
}
}
impl Drawable for Window {
fn as_drawable(&self) -> x::Drawable {
self.inner
}
}
impl WindowAttributes {
pub fn get_x(&self) -> i32 {
unsafe { (*self.inner).x as i32 }
}
pub fn get_y(&self) -> i32 {
unsafe { (*self.inner).y as i32 }
}
pub fn get_width(&self) -> u32 {
unsafe { (*self.inner).width as u32 }
}
pub fn get_height(&self) -> u32 {
unsafe { (*self.inner).height as u32 }
}
pub fn get_root(&self) -> Window {
Window {
display: self.display,
inner: unsafe { (*self.inner).root },
}
}
}
impl Drop for WindowAttributes {
fn drop(&mut self) {
unsafe { libc::free(self.inner as *mut libc::c_void) };
}
}