rust: new example: direct cursor

issue: only updates the screen after a newline

rust/examples/direct-cursor.rs

@@ -0,0 +1,27 @@
+use std::thread::sleep;
+use std::time::Duration;
+
+use cstr_core::CString;
+
+use libnotcurses_sys as nc;
+
+fn main() {
+    unsafe {
+        let ncd = nc::ncdirect_start();
+
+        let (mut cy, mut cx) = (0,0);
+        nc::ncdirect_cursor_yx(ncd, &mut cy, &mut cx);
+        nc::ncdirect_putstr(ncd, 0, CString::new(format!("({},{})\n", cy, cx)).unwrap().as_ptr());
+
+        // ISSUE 1: printing without a newline doesn't update the screen
+        sleep(Duration::new(2, 0));
+        nc::ncdirect_putstr(ncd, 0, CString::new("HELLO").unwrap().as_ptr());
+        sleep(Duration::new(2, 0));
+        nc::ncdirect_putstr(ncd, 0, CString::new("WORLD").unwrap().as_ptr());
+
+        nc::ncdirect_cursor_yx(ncd, &mut cy, &mut cx);
+        nc::ncdirect_putstr(ncd, 0, CString::new(format!("({},{})\n", cy, cx)).unwrap().as_ptr());
+
+        nc::ncdirect_stop(ncd);
+    }
+}