1 files changed, 24 insertions, 7 deletions
diff --git a/src/layout/stack.rs b/src/layout/stack.rs
index 2a0b2806..fa5fd584 100644
--- a/src/layout/stack.rs
+++ b/src/layout/stack.rs
@@ -62,6 +62,8 @@ struct StackLayouter<'a> {
     ruler: Align,
     /// The constraints for the current region.
     constraints: Constraints,
+    /// Whether the last region can fit all the remaining content.
+    overflowing: bool,
     /// Offset, alignment and frame for all children that fit into the current
     /// region. The exact positions are not known yet.
     frames: Vec<(Length, Gen<Align>, Rc<Frame>)>,
@@ -87,11 +89,12 @@ impl<'a> StackLayouter<'a> {
             stack,
             main,
             expand,
-            constraints: Constraints::new(regions.expand),
             regions,
             full,
             used: Gen::zero(),
             ruler: Align::Start,
+            constraints: Constraints::new(expand),
+            overflowing: false,
             frames: vec![],
             finished: vec![],
         }
@@ -142,10 +145,16 @@ impl<'a> StackLayouter<'a> {
         }
 
         // Find a fitting region.
-        while !self.regions.current.get(self.main).fits(size.main)
-            && !self.regions.in_full_last()
-        {
-            self.constraints.max.get_mut(self.main).set_min(size.main);
+        while !self.regions.current.get(self.main).fits(size.main) {
+            if self.regions.in_full_last() {
+                self.overflowing = true;
+                break;
+            }
+
+            self.constraints
+                .max
+                .get_mut(self.main)
+                .set_min(self.used.main + size.main);
             self.finish_region();
         }
 
@@ -188,7 +197,9 @@ impl<'a> StackLayouter<'a> {
 
         // Make sure the stack's size satisfies the aspect ratio.
         if let Some(aspect) = self.stack.aspect {
-            self.constraints.exact = self.regions.current.to_spec().map(Some);
+            self.constraints.exact = self.full.to_spec().map(Some);
+            self.constraints.min = Spec::splat(None);
+            self.constraints.max = Spec::splat(None);
             let width = size
                 .width
                 .max(aspect.into_inner() * size.height)
@@ -198,6 +209,12 @@ impl<'a> StackLayouter<'a> {
             size = Size::new(width, width / aspect.into_inner());
         }
 
+        if self.overflowing {
+            self.constraints.min.vertical = None;
+            self.constraints.max.vertical = None;
+            self.constraints.exact = self.full.to_spec().map(Some);
+        }
+
         let mut output = Frame::new(size, size.height);
         let mut first = true;
 
@@ -244,6 +261,6 @@ impl<'a> StackLayouter<'a> {
         self.used = Gen::zero();
         self.ruler = Align::Start;
         self.finished.push(output.constrain(self.constraints));
-        self.constraints = Constraints::new(self.regions.expand);
+        self.constraints = Constraints::new(expand);
     }
 }