leyoda/cosmic-terminal
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Implement scrollbar

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This commit is contained in:
Jeremy Soller 2023-12-20 14:57:44 -07:00
parent ee3cc21ece
commit f9f7904117
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GPG key ID: DCFCA852D3906975
3 changed files with 46 additions and 37 deletions
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16
src/terminal.rs
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@ -324,12 +324,24 @@ impl Terminal {
self.term.lock().scroll_display(scroll);
}
pub fn scroll_to(&self, ratio: f32) {
let mut term = self.term.lock();
let grid = term.grid();
let total = grid.history_size() + grid.screen_lines();
let old_display_offset = grid.display_offset() as i32;
let new_display_offset =
((total as f32) * (1.0 - ratio)) as i32 - grid.screen_lines() as i32;
term.scroll_display(TerminalScroll::Delta(
new_display_offset - old_display_offset,
));
}
pub fn scrollbar(&self) -> (f32, f32) {
let term = self.term.lock();
let grid = term.grid();
let total = grid.history_size() + grid.screen_lines();
let start = total - grid.display_offset();
let end = total - (grid.display_offset() + grid.screen_lines());
let start = total - grid.display_offset() - grid.screen_lines();
let end = total - grid.display_offset();
(
(start as f32) / (total as f32),
(end as f32) / (total as f32),