Cleanup (#23)

* simplify footer

* improve: &T vs. &mut T

* remove header

* adjust table space

* update README

src/app.rs

@@ -7,8 +7,7 @@ use crate::{
     widgets::{
         clock::{self, Clock, ClockArgs, Style},
         countdown::{Countdown, CountdownWidget},
-        footer::{Footer, FooterArgs},
-        header::Header,
+        footer::Footer,
         pomodoro::{Mode as PomodoroMode, Pomodoro, PomodoroArgs, PomodoroWidget},
         timer::{Timer, TimerWidget},
     },
@@ -166,10 +165,10 @@ impl App {
         self.mode != Mode::Quit
     }
 
-    fn is_edit_mode(&mut self) -> bool {
+    fn is_edit_mode(&self) -> bool {
         match self.content {
-            Content::Countdown => self.countdown.get_clock().clone().is_edit_mode(),
-            Content::Timer => self.timer.get_clock().clone().is_edit_mode(),
+            Content::Countdown => self.countdown.get_clock().is_edit_mode(),
+            Content::Timer => self.timer.get_clock().is_edit_mode(),
             Content::Pomodoro => self.pomodoro.get_clock().is_edit_mode(),
         }
     }
@@ -250,24 +249,21 @@ impl AppWidget {
 impl StatefulWidget for AppWidget {
     type State = App;
     fn render(self, area: Rect, buf: &mut Buffer, state: &mut Self::State) {
-        let vertical = Layout::vertical([
-            Constraint::Length(1),
+        let [v0, v1] = Layout::vertical([
             Constraint::Percentage(100),
-            Constraint::Length(if state.show_menu { 5 } else { 1 }),
-        ]);
-        let [v0, v1, v2] = vertical.areas(area);
+            Constraint::Length(if state.show_menu { 4 } else { 1 }),
+        ])
+        .areas(area);
 
-        // header
-        Header::new(true).render(v0, buf);
         // content
-        self.render_content(v1, buf, state);
+        self.render_content(v0, buf, state);
         // footer
-        Footer::new(FooterArgs {
+        Footer {
             show_menu: state.show_menu,
             running_clock: state.clock_is_running(),
             selected_content: state.content,
             edit_mode: state.is_edit_mode(),
-        })
-        .render(v2, buf);
+        }
+        .render(v1, buf);
     }
 }