Move get_view from main to lib

src/lib.rs

@@ -3,6 +3,12 @@ pub mod view;
 pub mod world;
 
 use agent::{Agent, SimpleAgent};
+use std::io;
+use std::io::Read;
+use std::process::exit;
+use std::sync::{Arc, Mutex};
+use std::thread;
+use view::{RawTerminal, TerminalView, TermionBackend};
 use world::ActualWorld;
 
 pub fn get_world(width: isize, height: isize, spacing: usize, validating: bool) -> ActualWorld {
@@ -14,3 +20,24 @@ pub fn get_world(width: isize, height: isize, spacing: usize, validating: bool)
   }
   ActualWorld::new((width, height).into(), agents, validating)
 }
+
+pub type DefaultView = Arc<Mutex<Option<TerminalView<TermionBackend<RawTerminal<io::Stdout>>>>>>;
+pub fn get_view() -> DefaultView {
+  let view = Arc::new(Mutex::new(Some(TerminalView::try_new().unwrap())));
+
+  // Exit on q, ESC and Ctrl-C and reset terminal
+  let view2 = view.clone();
+  thread::spawn(move || {
+    let stdin = io::stdin();
+    for byte in stdin.bytes().flatten() {
+      if byte == b'q' || byte == 0x1b || byte == 0x03 {
+        if let Ok(mut view) = view2.lock() {
+          *view = None; // drop view
+          println!("\n");
+        }
+        exit(0);
+      }
+    }
+  });
+  view
+}

src/main.rs

@@ -1,35 +1,14 @@
-use gntag::get_world;
-use gntag::view::{Backend, TerminalView};
-use std::io;
-use std::io::Read;
-use std::process::exit;
-use std::sync::{Arc, Mutex};
-use std::thread;
+use gntag::{get_view, get_world, DefaultView};
 
 fn main() {
-  let view = Arc::new(Mutex::new(Some(TerminalView::try_new().unwrap())));
-
-  // Exit on q, ESC and Ctrl-C and reset terminal
-  let view2 = view.clone();
-  thread::spawn(move || {
-    let stdin = io::stdin();
-    for byte in stdin.bytes().flatten() {
-      if byte == b'q' || byte == 0x1b || byte == 0x03 {
-        if let Ok(mut view) = view2.lock() {
-          *view = None; // drop view
-          println!("\n");
-        }
-        exit(0);
-      }
-    }
-  });
+  let view = get_view();
 
   loop {
     run_simulation(&view);
   }
 }
 
-fn run_simulation(view: &Arc<Mutex<Option<TerminalView<impl Backend>>>>) {
+fn run_simulation(view: &DefaultView) {
   let (width, height) = (*view.lock().unwrap())
     .as_mut()
     .unwrap()

src/view.rs

@@ -2,9 +2,10 @@ use std::convert::TryInto;
 use std::error::Error;
 use std::io::{stdout, Stdout, Write};
 use termion::clear;
-use termion::raw::{IntoRawMode, RawTerminal};
-pub use tui::backend::Backend;
-use tui::backend::TermionBackend;
+use termion::raw::IntoRawMode;
+pub use termion::raw::RawTerminal;
+use tui::backend::Backend;
+pub use tui::backend::TermionBackend;
 use tui::layout::{Alignment, Constraint, Direction, Layout, Rect};
 use tui::style::{Color, Modifier, Style};
 use tui::text::{Span, Spans};