From 282e29207aea7e4c1cdc96c52bd0e75e69aa031b Mon Sep 17 00:00:00 2001
From: rilysh <nightquick@proton.me>
Date: Tue, 16 May 2023 21:58:35 -0400
Subject: [PATCH] add: a demo in rust

---
 demo/example.rs | 64 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 64 insertions(+)
 create mode 100644 demo/example.rs

diff --git a/demo/example.rs b/demo/example.rs
new file mode 100644
index 0000000..694dcc1
--- /dev/null
+++ b/demo/example.rs
@@ -0,0 +1,64 @@
+// rustc example.rs -L.. -ltermbox2 && LD_LIBRARY_PATH=.. ./example
+
+use std::os::raw::c_uint;
+
+#[repr(C)]
+#[derive(Default)]
+struct TbEvent {
+    type_: u8,
+    mod_: u8,
+    key: u16,
+    ch: u32,
+    w: i32,
+    h: i32,
+    x: i32,
+    y: i32,
+}
+
+extern "C" {
+    fn tb_init() -> i32;
+    fn tb_shutdown() -> i32;
+    fn tb_printf(x: i32, y: i32, fg: u32, bg: u32, fmt: *const u8, ...) -> i32;
+    fn tb_present() -> i32;
+    fn tb_poll_event(event: *mut TbEvent) -> i32;
+}
+
+fn main() {
+    unsafe {
+        main_unsafe();
+    }
+}
+
+unsafe fn main_unsafe() {
+    let mut ev = TbEvent::default();
+
+    tb_init();
+
+    let mut y = 0;
+    tb_printf(0, y, (0x0002 | 0x0100) as u32, 0, "hello world from rust\0".as_ptr() as *const u8);
+    y += 1;
+    tb_printf(0, y, 3, 0, "press any key\0".as_ptr() as *const u8);
+    y += 1;
+    tb_present();
+    tb_poll_event(&mut ev);
+
+    tb_printf(0, y, 4, 0,
+        "event: type=%d mod=%d key=%d ch=%d w=%d h=%d x=%d y=%d\0".as_ptr() as *const u8,
+        ev.type_ as c_uint,
+        ev.mod_ as c_uint,
+        ev.key as c_uint,
+        ev.ch,
+        ev.w,
+        ev.h,
+        ev.x,
+        ev.y,
+    );
+    y += 1;
+    tb_present();
+
+    tb_printf(0, y, 5, 0, "press any key to quit\0".as_ptr() as *const u8);
+    tb_present();
+    tb_poll_event(&mut ev);
+
+    tb_shutdown();
+}
-- 
2.39.5