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Fix panic in grid due to empty auto row

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This commit is contained in:
Laurenz 2021-10-02 18:41:03 +02:00
parent 2818ceee44
commit 1d60525690
1 changed files with 26 additions and 19 deletions
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45
src/layout/grid.rs
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@ -387,31 +387,38 @@ impl<'a> GridLayouter<'a> {
} }
} }
// Layout the row. // Nothing to layout.
if resolved.is_empty() {
return;
}
// Layout into a single region.
if let &[first] = resolved.as_slice() { if let &[first] = resolved.as_slice() {
let frame = self.layout_single_row(ctx, first, y); let frame = self.layout_single_row(ctx, first, y);
self.push_row(ctx, frame); self.push_row(ctx, frame);
} else { return;
// Expand all but the last region if the space is not eaten up by any fr }
// rows.
if self.fr.is_zero() {
let len = resolved.len();
for (target, (current, _)) in
resolved[.. len - 1].iter_mut().zip(self.regions.iter())
{
target.set_max(current.get(self.block));
}
}
let frames = self.layout_multi_row(ctx, &resolved, y); // Expand all but the last region if the space is not
let len = frames.len(); // eaten up by any fr rows.
for (i, frame) in frames.into_iter().enumerate() { if self.fr.is_zero() {
if i + 1 < len { let len = resolved.len();
self.constraints.exact.set(self.block, Some(self.full)); for (target, (current, _)) in
} resolved[.. len - 1].iter_mut().zip(self.regions.iter())
self.push_row(ctx, frame); {
target.set_max(current.get(self.block));
} }
} }
// Layout into multiple regions.
let frames = self.layout_multi_row(ctx, &resolved, y);
let len = frames.len();
for (i, frame) in frames.into_iter().enumerate() {
if i + 1 < len {
self.constraints.exact.set(self.block, Some(self.full));
}
self.push_row(ctx, frame);
}
} }
/// Layout a row with a fixed size along the block axis. /// Layout a row with a fixed size along the block axis.