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|
use crate::error::Result;
use xcb::{
x::{AllocColor, Colormap, FreeColors},
Connection as RawConnection,
};
/// Caches colours in an X11 color map.
pub struct Colours {
#[allow(unused)] // Make sure the colour map we're using doesn't go anywhere
cmap: Colormap,
border_normal: u32,
border_focused: u32,
}
impl Colours {
/// Load the colours into the given colour map
pub fn new_with(conn: &RawConnection, cmap: Colormap) -> Result<Self> {
// TODO: Move these colours out to config.rs
let (border_normal, border_focused) = (
conn.wait_for_reply(conn.send_request(&AllocColor {
cmap,
red: 0,
green: 0,
blue: 0,
}))?,
conn.wait_for_reply(conn.send_request(&AllocColor {
cmap,
red: u16::MAX,
green: 0,
blue: u16::MAX,
}))?,
);
Ok(Self {
cmap,
border_normal: border_normal.pixel(),
border_focused: border_focused.pixel(),
})
}
/// Get the pixel ID of the colour for an unfocused window's border.
pub const fn border_normal(&self) -> u32 {
self.border_normal
}
/// Get the pixel ID of the colour for a focused window's border.
pub const fn border_focused(&self) -> u32 {
self.border_focused
}
/// Free the associated resources to avoid leaking them.
/// This object must not be used again after this method is called, as all resources will be invalid.
pub unsafe fn free(&self, conn: &RawConnection) {
conn.send_request(&FreeColors {
cmap: self.cmap,
plane_mask: 0,
pixels: &[self.border_normal, self.border_focused],
});
}
}
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