Fix mouse input

examples/click.rs

+extern crate termion;
+
+use termion::event::{Key, Event, MouseEvent};
+use termion::input::TermRead;
+use termion::raw::IntoRawMode;
+use std::io::{Write, stdout, stdin};
+
+fn main() {
+    let stdin = stdin();
+    let mut stdout = stdout().into_raw_mode().unwrap().with_mouse().unwrap();
+
+    write!(stdout, "{}{}q to exit. Click, click, click!", termion::clear::All, termion::cursor::Goto(1, 1)).unwrap();
+    stdout.flush().unwrap();
+
+    for c in stdin.events() {
+        let evt = c.unwrap();
+        match evt {
+            Event::Key(Key::Char('q')) => break,
+            Event::Mouse(me) => {
+                match me {
+                    MouseEvent::Press(_, x, y) => {
+                        write!(stdout, "{}x", termion::cursor::Goto(x, y)).unwrap();
+                    },
+                    _ => (),
+                }
+            }
+            _ => {}
+        }
+        stdout.flush().unwrap();
+    }
+}

src/event.rs

@@ -19,8 +19,12 @@ pub enum Event {
 #[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
 pub enum MouseEvent {
     /// A mouse button was pressed.
+    ///
+    /// The coordinates are one-based.
     Press(MouseButton, u16, u16),
     /// A mouse button was released.
+    ///
+    /// The coordinates are one-based.
     Release(u16, u16),
 }
 
@@ -114,8 +118,8 @@ where I: Iterator<Item = Result<u8, Error>>
                             // X10 emulation mouse encoding: ESC [ CB Cx Cy (6 characters only).
                             let cb = iter.next().unwrap().unwrap() as i8 - 32;
                             // (1, 1) are the coords for upper left.
-                            let cx = (iter.next().unwrap().unwrap() as u8 - 1).saturating_sub(32) as u16;
-                            let cy = (iter.next().unwrap().unwrap() as u8 - 1).saturating_sub(32) as u16;
+                            let cy = (iter.next().unwrap().unwrap() as u8).saturating_sub(32) as u16;
+                            let cx = (iter.next().unwrap().unwrap() as u8).saturating_sub(32) as u16;
                             Event::Mouse(match cb & 0b11 {
                                 0 => {
                                     if cb & 0x40 != 0 {
@@ -152,8 +156,8 @@ where I: Iterator<Item = Result<u8, Error>>
                             let ref mut nums = str_buf.split(';');
 
                             let cb = nums.next().unwrap().parse::<u16>().unwrap();
-                            let cx = nums.next().unwrap().parse::<u16>().unwrap() - 1;
-                            let cy = nums.next().unwrap().parse::<u16>().unwrap() - 1;
+                            let cy = nums.next().unwrap().parse::<u16>().unwrap();
+                            let cx = nums.next().unwrap().parse::<u16>().unwrap();
 
                             let button = match cb {
                                 0 => MouseButton::Left,