Add support to move cursor to (x, y) position

examples/cursor_at.rs

@@ -0,0 +1,30 @@
+extern crate console;
+
+use std::io;
+use std::thread;
+use std::time::Duration;
+
+use console::{style, Term};
+
+fn write_chars() -> io::Result<()> {
+    let term = Term::stdout();
+    let (heigth, width) = term.size();
+    for x in 0..width {
+        for y in 0..heigth {
+            term.move_cursor_to(x as usize, y as usize)?;
+            let text = if (x + y) % 2 == 0 {
+                format!("{}", style(x % 10).black().on_red())
+            } else {
+                format!("{}", style(x % 10).red().on_black())
+            };
+
+            term.write_str(&text)?;
+            thread::sleep(Duration::from_micros(600));
+        }
+    }
+    Ok(())
+}
+
+fn main() {
+    write_chars().unwrap();
+}

src/common_term.rs

@@ -18,6 +18,10 @@ pub fn move_cursor_up(out: &Term, n: usize) -> io::Result<()> {
     }
 }
 
+pub fn move_cursor_to(out: &Term, x: usize, y: usize) -> io::Result<()> {
+    out.write_str(&format!("\x1B[{};{}H", y + 1, x + 1))
+}
+
 pub fn clear_line(out: &Term) -> io::Result<()> {
     out.write_str("\r\x1b[2K")
 }

src/term.rs

@@ -282,6 +282,11 @@ impl Term {
         terminal_size()
     }
 
+    /// Moves the cursor to `x` and `y`
+    pub fn move_cursor_to(&self, x: usize, y: usize) -> io::Result<()> {
+        move_cursor_to(self, x, y)
+    }
+
     /// Moves the cursor up `n` lines
     pub fn move_cursor_up(&self, n: usize) -> io::Result<()> {
         move_cursor_up(self, n)

src/windows_term.rs

@@ -86,38 +86,42 @@ pub fn terminal_size() -> Option<(u16, u16)> {
     }
 }
 
-pub fn move_cursor_up(out: &Term, n: usize) -> io::Result<()> {
+pub fn move_cursor_to(out: &Term, x: usize, y: usize) -> io::Result<()> {
     if msys_tty_on(out) {
-        return common_term::move_cursor_up(out, n);
+        return common_term::move_cursor_to(out, x, y);
     }
     if let Some((hand, csbi)) = get_console_screen_buffer_info(as_handle(out)) {
         unsafe {
             SetConsoleCursorPosition(
                 hand,
                 COORD {
-                    X: 0,
-                    Y: csbi.dwCursorPosition.Y - n as i16,
+                    X: x as i16,
+                    Y: y as i16,
                 },
             );
         }
     }
     Ok(())
 }
 
+pub fn move_cursor_up(out: &Term, n: usize) -> io::Result<()> {
+    if msys_tty_on(out) {
+        return common_term::move_cursor_up(out, n);
+    }
+
+    if let Some((hand, csbi)) = get_console_screen_buffer_info(as_handle(out)) {
+        move_cursor_to(out, 0, csbi.dwCursorPosition.Y as usize - n);
+    }
+    Ok(())
+}
+
 pub fn move_cursor_down(out: &Term, n: usize) -> io::Result<()> {
     if msys_tty_on(out) {
         return common_term::move_cursor_down(out, n);
     }
+
     if let Some((hand, csbi)) = get_console_screen_buffer_info(as_handle(out)) {
-        unsafe {
-            SetConsoleCursorPosition(
-                hand,
-                COORD {
-                    X: 0,
-                    Y: csbi.dwCursorPosition.Y + n as i16,
-                },
-            );
-        }
+        move_cursor_to(out, 0, csbi.dwCursorPosition.Y as usize + n);
     }
     Ok(())
 }