Add support for printing the position of the cursor

README.md

@@ -92,6 +92,10 @@ The `-P` or `--preview-size` flag controls the size of the preview in pixels. So
 that the preview always has a center pixel this number must be odd, if an even
 number is passed then it will be changed to the next odd number.
 
+## Position
+
+The `-p` or `--position` flag allows to also print out the position of the cursor.
+
 ## Formatting
 
 By default, the color values will be printed in lowercase hexadecimal format.

src/cli.rs

@@ -52,4 +52,13 @@ pub fn get_cli() -> App<'static, 'static> {
                 .value_name("PREVIEW_SIZE")
                 .help("Size of preview, must be odd (defaults to 255)"),
         )
+        .arg(
+            Arg::with_name("position")
+                .short("p")
+                .long("position")
+                .required(false)
+                .takes_value(false)
+                // .value_name("POSITION")
+                .help("Should xcolor also print out the position of the pointer"),
+        )
 }

src/main.rs

@@ -59,6 +59,8 @@ fn run(args: &ArgMatches) -> Result<()> {
     let use_selection = selection.is_some();
     let background = std::env::var("XCOLOR_FOREGROUND").is_err();
 
+    let print_position = args.is_present("position");
+
     let mut in_parent = true;
 
     let (conn, screen) = Connection::connect_with_xlib_display()?;
@@ -86,6 +88,10 @@ fn run(args: &ArgMatches) -> Result<()> {
                     set_selection(&conn, root, &selection.unwrap(), &output)?;
                 }
             } else {
+                if print_position {
+                    let pos = xcb::xproto::query_pointer(&conn, root).get_reply()?;
+                    println!("position: ({}, {})", pos.root_x(), pos.root_y());
+                }
                 println!("{}", output);
             }
         }