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This commit is contained in:
Antonio Scandurra
2021-07-30 09:50:28 -07:00
committed by Max Brunsfeld
parent 8ba8fa546b
commit 576cabea93
1 changed files with 33 additions and 0 deletions
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zed/src/editor/display_map.rs
+33
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@@ -107,6 +107,39 @@ impl DisplayMapSnapshot {
self.buffer_snapshot.max_point().row + 1
}
pub fn prev_row_boundary(&self, mut display_point: DisplayPoint) -> (DisplayPoint, Point) {
*display_point.column_mut() = 0;
let mut point = display_point.to_buffer_point(self, Bias::Left);
while point.column != 0 {
point.column = 0;
display_point = point.to_display_point(self);
if display_point.column() != 0 {
*display_point.column_mut() = 0;
point = display_point.to_buffer_point(self, Bias::Left);
}
}
(display_point, point)
}
pub fn next_row_boundary(&self, mut display_point: DisplayPoint) -> (DisplayPoint, Point) {
*display_point.row_mut() += 1;
*display_point.column_mut() = 0;
let mut point = display_point.to_buffer_point(self, Bias::Right);
while point.column != 0 {
point.column = 0;
point.row += 1;
display_point = point.to_display_point(self);
if display_point.column() != 0 {
*display_point.row_mut() += 1;
*display_point.column_mut() = 0;
point = display_point.to_buffer_point(self, Bias::Right);
}
}
(display_point, point)
}
pub fn max_point(&self) -> DisplayPoint {
DisplayPoint(self.wraps_snapshot.max_point())
}