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better reflow performance

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This commit is contained in:
Aram Drevekenin 2020-07-31 17:04:06 +02:00
parent 77733ff547
commit ea53765d16
1 changed files with 6 additions and 3 deletions
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9
src/main.rs
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@ -229,11 +229,15 @@ impl TerminalOutput {
} }
fn reflow_lines (&mut self) { fn reflow_lines (&mut self) {
self.linebreak_indices.clear(); self.linebreak_indices.clear();
let newline_indices: HashSet<&usize> = HashSet::from_iter(self.newline_indices.iter());
let mut newline_indices = self.newline_indices.iter();
let mut next_newline_index = newline_indices.next();
let mut x: u64 = 0; let mut x: u64 = 0;
for (i, _c) in self.characters.iter().enumerate() { for (i, _c) in self.characters.iter().enumerate() {
if newline_indices.contains(&i) { if next_newline_index == Some(&i) {
x = 0; x = 0;
next_newline_index = newline_indices.next();
} else if x == self.display_cols as u64 && i < self.cursor_position { } else if x == self.display_cols as u64 && i < self.cursor_position {
self.linebreak_indices.push(i); self.linebreak_indices.push(i);
x = 0; x = 0;
@ -441,7 +445,6 @@ impl vte::Perform for TerminalOutput {
self.move_to_beginning_of_line(); self.move_to_beginning_of_line();
} else if byte == 08 { // backspace } else if byte == 08 { // backspace
self.cursor_position -= 1; self.cursor_position -= 1;
self.characters.remove(self.cursor_position);
} else if byte == 10 { // 0a, newline } else if byte == 10 { // 0a, newline
self.add_newline(); self.add_newline();
} }