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|
use std::thread;
use std::time::{Duration, Instant};
fn main() {
let win_width = 500u16;
let win_height = 500u16;
let (conn, screen_num) = xcb::Connection::connect(None).unwrap();
let setup = conn.get_setup();
let screen = setup.roots().nth(screen_num as usize).unwrap();
let depths = screen.allowed_depths();
let mut alpha_depths = depths.filter(|d| d.depth() == 32u8);
let visual = alpha_depths
.next()
.unwrap()
.visuals()
.nth(1 as usize)
.unwrap();
let win_start_x = 0;
let win_start_y = 0;
let colormap = conn.generate_id();
xcb::create_colormap(
&conn,
xcb::COLORMAP_ALLOC_NONE as u8,
colormap,
screen.root(),
visual.visual_id(),
);
let win = conn.generate_id();
xcb::create_window(
&conn,
32u8,
win,
screen.root(),
win_start_x,
win_start_y,
win_width,
win_height,
2,
xcb::WINDOW_CLASS_INPUT_OUTPUT as u16,
visual.visual_id(),
&[
(xcb::CW_BACK_PIXEL, 0x00),
(xcb::CW_BORDER_PIXEL, 0x00),
//(xcb::CW_OVERRIDE_REDIRECT, 1u32),
(xcb::CW_EVENT_MASK, xcb::EVENT_MASK_EXPOSURE),
(xcb::CW_COLORMAP, colormap),
],
);
let gfx_ctx = conn.generate_id();
xcb::create_gc(
&conn,
gfx_ctx,
win,
&[
(xcb::GC_FOREGROUND, screen.white_pixel()),
(xcb::GC_GRAPHICS_EXPOSURES, 0),
(xcb::GC_LINE_WIDTH, 1),
],
);
xcb::free_colormap(&conn, colormap);
let win_type_atom = xcb::intern_atom(&conn, true, "_NET_WM_WINDOW_TYPE")
.get_reply()
.unwrap()
.atom();
let win_menu_atom = xcb::intern_atom(&conn, true, "_NET_WM_WINDOW_TYPE_SPLASH")
.get_reply()
.unwrap()
.atom();
let win_state_atom = xcb::intern_atom(&conn, true, "_NET_WM_STATE")
.get_reply()
.unwrap()
.atom();
let win_on_top_atom = xcb::intern_atom(&conn, true, "_NET_WM_STATE_STAYS_ON_TOP")
.get_reply()
.unwrap()
.atom();
xcb::change_property(
&conn,
xcb::PROP_MODE_REPLACE as u8,
win,
win_type_atom,
xcb::ATOM_ATOM,
32,
&[win_menu_atom],
);
xcb::change_property(
&conn,
xcb::PROP_MODE_APPEND as u8,
win,
win_state_atom,
xcb::ATOM_ATOM,
32,
&[win_on_top_atom],
);
let mut circles = (1u16..10u16)
.map(|i| {
xcb::Arc::new(
win_start_x + 25 * i as i16,
win_start_y + 25 * i as i16,
win_width - 50 * i,
win_height - 50 * i,
0,
360 << 6,
)
})
.collect::<Vec<xcb::Arc>>()
.into_iter();
xcb::map_window(&conn, win);
conn.flush();
loop {
let event = conn.wait_for_event();
match event {
None => {
break;
}
Some(e) => {
let r = e.response_type() & !0x80;
match r {
xcb::EXPOSE => {
xcb::poly_arc(&conn, win, gfx_ctx, &[circles.next().unwrap()]);
conn.flush();
break;
}
_ => {
break;
}
}
}
}
}
let pointer = xcb::query_pointer(&conn, win).get_reply().unwrap();
let p_x = pointer.root_x();
let p_y = pointer.root_y();
move_win_to_cursor(&conn, win, win_width, win_height, p_x, p_y);
let loop_start = Instant::now();
let anim_duration = Duration::from_millis(600);
let circle_duration = Duration::from_millis(60);
loop {
match circles.next() {
Some(c) => {
let _ = xcb::poly_arc(&conn, win, gfx_ctx, &[c]);
conn.flush();
}
None => {}
};
thread::sleep(circle_duration);
let now = Instant::now();
if now.duration_since(loop_start) > anim_duration {
break;
}
}
thread::sleep(Duration::from_millis(100));
}
fn move_win_to_cursor(
conn: &xcb::Connection,
win: u32,
win_width: u16,
win_height: u16,
p_x: i16,
p_y: i16,
) {
let win_x = p_x - (win_width as i16) / 2;
let win_y = p_y - (win_height as i16) / 2;
xcb::configure_window(
&conn,
win,
&[
(
xcb::CONFIG_WINDOW_X as u16,
if win_x < 0 { 0 } else { win_x as u32 },
),
(
xcb::CONFIG_WINDOW_Y as u16,
if win_y < 0 { 0 } else { win_y as u32 },
),
],
);
conn.flush();
}
|
