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simplified overflow-safe subtraction

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Henrik Friedrichsen
2019-04-09 22:00:54 +02:00
parent 534ccc904f
commit 95370b23c0
1 changed files with 2 additions and 2 deletions
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4
src/ui/listview.rs
View File

@@ -86,9 +86,9 @@ impl<I: ListItem> View for ListView<I> {
}); });
// draw ".." to indicate a cut off string // draw ".." to indicate a cut off string
let max_length = printer.size.x.checked_sub(right.width() + 1).unwrap_or(0); let max_length = printer.size.x.saturating_sub(right.width() + 1);
if max_length < left.width() { if max_length < left.width() {
let offset = max_length.checked_sub(1).unwrap_or(0); let offset = max_length.saturating_sub(1);
printer.with_color(style, |printer| { printer.with_color(style, |printer| {
printer.print((offset, 0), ".."); printer.print((offset, 0), "..");
}); });