Add key for redraw

Author: inunix3

src/screensaver.rs

@@ -329,6 +329,10 @@ impl Screensaver {
                     }
                     KeyCode::Char(' ') => self.state.pause = !self.state.pause,
                     KeyCode::Char('c') => self.clear(),
+                    KeyCode::Char('l') => {
+                        self.term_scr.clear();
+                        self.render()?
+                    }
                     KeyCode::Char('s') => self.cfg.show_stats = !self.cfg.show_stats,
                     _ => {}
                 },

src/terminal.rs

@@ -5,6 +5,7 @@
 use crate::canvas::Canvas;
 use eyre::{Result, WrapErr};
 use termwiz::{
+    color::ColorAttribute,
     surface::{Change, CursorVisibility},
     terminal::{buffered::BufferedTerminal, SystemTerminal, Terminal},
 };
@@ -58,6 +59,12 @@ impl TerminalScreen {
         Ok(())
     }
 
+    /// Clear the screen.
+    pub fn clear(&mut self) {
+        self.term
+            .add_change(Change::ClearScreen(ColorAttribute::Default));
+    }
+
     /// Resize terminal screen buffer to specified size.
     pub fn resize(&mut self, size: (usize, usize)) {
         self.size = size;