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Sketch an initial implementation for block_map::HighlightedChunks

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Co-Authored-By: Max Brunsfeld <maxbrunsfeld@gmail.com>
This commit is contained in:
Nathan Sobo 2021-11-12 14:51:25 -07:00
parent 6f97a9be3b
commit e605a5ead2
2 changed files with 98 additions and 24 deletions
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16
crates/buffer/src/rope.rs
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@ -149,7 +149,9 @@ impl Rope {
}
pub fn offset_to_point(&self, offset: usize) -> Point {
assert!(offset <= self.summary().bytes);
if offset >= self.summary().bytes {
return self.summary().lines;
}
let mut cursor = self.chunks.cursor::<(usize, Point)>();
cursor.seek(&offset, Bias::Left, &());
let overshoot = offset - cursor.start().0;
@ -160,7 +162,9 @@ impl Rope {
}
pub fn offset_to_point_utf16(&self, offset: usize) -> PointUtf16 {
assert!(offset <= self.summary().bytes);
if offset >= self.summary().bytes {
return self.summary().lines_utf16;
}
let mut cursor = self.chunks.cursor::<(usize, PointUtf16)>();
cursor.seek(&offset, Bias::Left, &());
let overshoot = offset - cursor.start().0;
@ -171,7 +175,9 @@ impl Rope {
}
pub fn point_to_offset(&self, point: Point) -> usize {
assert!(point <= self.summary().lines);
if point >= self.summary().lines {
return self.summary().bytes;
}
let mut cursor = self.chunks.cursor::<(Point, usize)>();
cursor.seek(&point, Bias::Left, &());
let overshoot = point - cursor.start().0;
@ -182,7 +188,9 @@ impl Rope {
}
pub fn point_utf16_to_offset(&self, point: PointUtf16) -> usize {
assert!(point <= self.summary().lines_utf16);
if point >= self.summary().lines_utf16 {
return self.summary().bytes;
}
let mut cursor = self.chunks.cursor::<(PointUtf16, usize)>();
cursor.seek(&point, Bias::Left, &());
let overshoot = point - cursor.start().0;