fix: prevent MeasureOverride from returning Infinity to Avalonia layout (#2136) (#2137)

Author: gadfly3173

src/Views/CommitRefsPresenter.cs

@@ -258,7 +258,7 @@ protected override Size MeasureOverride(Size availableSize)
                 }
 
                 var requiredWidth = allowWrap && requiredHeight > 16.0
-                    ? availableSize.Width
+                    ? (double.IsInfinity(availableSize.Width) ? x + 2 : availableSize.Width)
                     : x + 2;
                 InvalidateVisual();
                 return new Size(requiredWidth, requiredHeight);

src/Views/ImageContainer.cs

@@ -90,7 +90,7 @@ protected override Size MeasureOverride(Size availableSize)
                 return new Size(scale * imageSize.Width, scale * imageSize.Height);
             }
 
-            return availableSize;
+            return new Size(0, 0);
         }
     }
 
@@ -206,7 +206,7 @@ protected override Size MeasureOverride(Size availableSize)
             var right = NewImage;
 
             if (left == null)
-                return right == null ? availableSize : GetDesiredSize(right.Size, availableSize);
+                return right == null ? new Size(0, 0) : GetDesiredSize(right.Size, availableSize);
 
             if (right == null)
                 return GetDesiredSize(left.Size, availableSize);
@@ -324,7 +324,7 @@ protected override Size MeasureOverride(Size availableSize)
             var right = NewImage;
 
             if (left == null)
-                return right == null ? availableSize : GetDesiredSize(right.Size, availableSize);
+                return right == null ? new Size(0, 0) : GetDesiredSize(right.Size, availableSize);
 
             if (right == null)
                 return GetDesiredSize(left.Size, availableSize);
@@ -439,7 +439,7 @@ protected override Size MeasureOverride(Size availableSize)
             var right = NewImage;
 
             if (left == null)
-                return right == null ? availableSize : GetDesiredSize(right.Size, availableSize);
+                return right == null ? new Size(0, 0) : GetDesiredSize(right.Size, availableSize);
 
             if (right == null)
                 return GetDesiredSize(left.Size, availableSize);

src/Views/StashSubjectPresenter.cs

@@ -120,7 +120,8 @@ protected override Size MeasureOverride(Size availableSize)
             var typeface = new Typeface(FontFamily);
             var test = new FormattedText("fgl|", CultureInfo.CurrentCulture, FlowDirection.LeftToRight, typeface, FontSize, Brushes.White);
             var h = Math.Max(18, test.Height);
-            return new Size(availableSize.Width, h);
+            var w = double.IsInfinity(availableSize.Width) ? 0 : availableSize.Width;
+            return new Size(w, h);
         }
 
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