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Fix fr rows in infinite region

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This commit is contained in:
Laurenz 2021-09-10 13:26:53 +02:00
parent f592662aa0
commit 50a464488c
2 changed files with 15 additions and 5 deletions
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1
src/layout/frame.rs
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@ -31,6 +31,7 @@ pub enum FrameChild {
impl Frame {
/// Create a new, empty frame.
#[track_caller]
pub fn new(size: Size, baseline: Length) -> Self {
assert!(size.is_finite());
Self { size, baseline, children: vec![] }

19
src/layout/grid.rs
View File

@ -470,10 +470,15 @@ impl<'a> GridLayouter<'a> {
/// Finish rows for one region.
fn finish_region(&mut self, ctx: &mut LayoutContext) {
// Determine the size of the region.
let length = if self.fr.is_zero() { self.used.block } else { self.full };
let size = self.to_size(length);
self.constraints.min.set(self.block, Some(length));
// Determine the block size of the region.
let block = if self.fr.is_zero() || self.full.is_infinite() {
self.used.block
} else {
self.full
};
let size = self.to_size(block);
self.constraints.min.set(self.block, Some(block));
// The frame for the region.
let mut output = Frame::new(size, size.h);
@ -488,7 +493,10 @@ impl<'a> GridLayouter<'a> {
Row::Frame(frame) => frame,
Row::Fr(v, y) => {
let ratio = v / self.fr;
if remaining > Length::zero() && ratio.is_finite() {
if remaining > Length::zero()
&& remaining.is_finite()
&& ratio.is_finite()
{
let resolved = ratio * remaining;
self.layout_single_row(ctx, resolved, y)
} else {
@ -513,6 +521,7 @@ impl<'a> GridLayouter<'a> {
/// Get the node in the cell in column `x` and row `y`.
///
/// Returns `None` if it's a gutter cell.
#[track_caller]
fn cell(&self, x: usize, y: usize) -> Option<&'a LayoutNode> {
assert!(x < self.cols.len());
assert!(y < self.rows.len());