Function apply_cursor_shape

native/linux/src/lib.rs:342–373

Apply the requested cursor shape (the same 0..=6 enum macOS uses in NSCursor calls). XCreateFontCursor uses cursor-font glyph constants from ; we cache one Cursor per shape so repeat calls don't leak server-side state.

(shape: u32)

    /// constants from <X11/cursorfont.h>; we cache one Cursor per shape
    /// so repeat calls don't leak server-side state.
    pub fn apply_cursor_shape(shape: u32) {
        unsafe {
            if DISPLAY.is_null() || X11_WINDOW == 0 || CURSOR_HIDDEN { return; }
            if shape == LAST_APPLIED_SHAPE { return; }
            // X11 cursor-font glyph indices (from cursorfont.h).
            // 0 = default arrow → XC_left_ptr (68)
            // 1 = pointing hand → XC_hand2     (60)
            // 2 = open hand     → XC_fleur     (52, "move")
            // 3 = I-beam        → XC_xterm     (152)
            // 4 = resize H      → XC_sb_h_double_arrow (108)
            // 5 = resize V      → XC_sb_v_double_arrow (116)
            // 6 = crosshair     → XC_crosshair (34)
            let glyph: u32 = match shape {
                1 => 60,
                2 => 52,
                3 => 152,
                4 => 108,
                5 => 116,
                6 => 34,
                _ => 68,
            };
            let idx = (shape as usize).min(SHAPE_CURSORS.len() - 1);
            if SHAPE_CURSORS[idx] == 0 {
                SHAPE_CURSORS[idx] = x11::xlib::XCreateFontCursor(DISPLAY, glyph);
            }
            if SHAPE_CURSORS[idx] != 0 {
                x11::xlib::XDefineCursor(DISPLAY, X11_WINDOW, SHAPE_CURSORS[idx]);
                x11::xlib::XFlush(DISPLAY);
                LAST_APPLIED_SHAPE = shape;
            }
        }
    }

    pub fn poll_events() {
        unsafe {