57 lines
1.2 KiB
Rust
57 lines
1.2 KiB
Rust
#![allow(unsafe_code)]
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use anyhow::{anyhow, Result};
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use std::ffi::CString;
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use std::os::raw::c_char;
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use std::ptr;
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use x11::xlib;
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pub(crate) struct XSetRoot {
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display: *mut xlib::Display,
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root_window: xlib::Window,
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}
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impl XSetRoot {
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pub(crate) fn init() -> Result<Self> {
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unsafe {
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let display = xlib::XOpenDisplay(ptr::null());
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if display.is_null() {
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return Err(anyhow!("cannot open display"));
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}
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let screen = xlib::XDefaultScreen(display);
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let root_window = xlib::XRootWindow(display, screen);
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Ok(Self {
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display,
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root_window,
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})
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}
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}
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pub(crate) fn render(&self, text: String) -> Result<()> {
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let status_c = CString::new(text)?;
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unsafe {
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xlib::XStoreName(
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self.display,
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self.root_window,
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status_c.as_ptr() as *mut c_char,
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);
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xlib::XFlush(self.display);
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}
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Ok(())
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}
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}
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impl Drop for XSetRoot {
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fn drop(&mut self) {
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unsafe {
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xlib::XCloseDisplay(self.display);
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}
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}
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}
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