raise

pub fn raise(self: *Subwindows, id: Id) error{CouldNotFindSubwindow}!void {
    // don't check against subwindows[0] - that's that main window
    const items = self.stack.items[1..];
    for (items, 0..) |sw, i| {
        if (sw.id == id) {
            if (sw.stay_above_parent_window != null) {
                //std.debug.print("raiseSubwindow: tried to raise a subwindow {x} with stay_above_parent_window set\n", .{subwindow_id});
                return;
            }
            if (i == (items.len - 1)) {
                // already on top
                return;
            }
            // move it to the end, also move any stay_above_parent_window subwindows
            // directly on top of it as well - we know from above that the
            // first window does not have stay_above_parent_window so this loop ends
            var first = true;
            while (first or items[i].stay_above_parent_window != null) {
                first = false;
                const item = items[i];
                for (items[i..(items.len - 1)], 0..) |*b, k| {
                    b.* = items[i + 1 + k];
                }
                items[items.len - 1] = item;
            }
            return;
        }
    }
    return error.CouldNotFindSubwindow;
}