redraw screen instead of clearing

src/menu.rs

@@ -134,9 +134,13 @@ impl Menu {
             }
         };
 
+        let mut line_count = 0;
         for line in iter {
+            line_count += 1;
+            let mut line_size = 0;
             if !self.wide {
                 out.push_str(&indent);
+                line_size += indent.len();
             }
             if line.typ == Type::Info {
                 out.push_str("      ");
@@ -154,6 +158,8 @@ impl Menu {
                 out.push_str(&(line.link + 1).to_string());
                 out.push_str(".\x1b[0m ");
             }
+            line_size += 6;
+
             // truncate long lines, instead of wrapping
             let name = if line.name.len() > MAX_COLS {
                 line.name.chars().take(MAX_COLS).collect::<String>()
@@ -171,11 +177,25 @@ impl Menu {
                 typ if !typ.is_supported() => push!("107;91", name),
                 _ => push!("0", name),
             }
+
+            // clear rest of line
+            line_size += name.len();
+            out.push_str(&" ".repeat(cols - line_size)); // fill line
+
             out.push_str("\r\n");
         }
+
         if self.searching {
             out.push_str(&self.render_input());
         }
+
+        // clear remainder of screen
+        let blank_line = " ".repeat(cols);
+        for _ in 0..rows - line_count - 1 {
+            out.push_str(&blank_line);
+            out.push_str(&"\r\n");
+        }
+
         out
     }
 

src/text.rs

@@ -105,16 +105,34 @@ impl View for Text {
             .skip(self.scroll)
             .take(rows - 1);
 
+        let mut lines = 0;
+
         for line in iter {
+            lines += 1;
             if line == ".\r" {
                 continue;
             }
+            let mut line_size = 0;
             if !self.wide {
                 out.push_str(&indent);
+                line_size += indent.len();
             }
             out.push_str(line);
+            line_size += line.len();
+
+            // clear rest of line
+            out.push_str(&" ".repeat(cols - line_size)); // fill line
+
             out.push_str("\r\n");
         }
+
+        // clear remainder of screen
+        let blank_line = " ".repeat(cols);
+        for _ in 0..rows - lines - 1 {
+            out.push_str(&blank_line);
+            out.push_str(&"\r\n");
+        }
+
         out
     }
 }

src/ui.rs

@@ -72,13 +72,20 @@ impl UI {
             let mut out = self.out.borrow_mut();
             write!(
                 out,
-                "{}{}{}{}{}",
-                termion::clear::All,
+                "{}{}{}",
                 termion::cursor::Goto(1, 1),
                 termion::cursor::Hide,
                 screen,
-                status,
             );
+            if status.len() > 0 {
+                write!(
+                    out,
+                    "{}{}{}",
+                    termion::cursor::Goto(1, self.rows()),
+                    status,
+                    termion::cursor::Show,
+                );
+            }
             out.flush();
             self.dirty = false;
         }