Fixing Slider sizing when fully SizeToFit

Fixes #197

CHANGELOG.md

@@ -126,6 +126,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   contents. This means that the scroll bars are now clickable even in areas
   where interactive widgets are beneath them.
 - `GraphicsContext::fill` now properly fills the entire region of the widget.
+- `Slider` now correctly calculates its width when in a fully `SizeToFit`
+  layout.
 
 ### Added
 

src/widgets/slider.rs

@@ -548,7 +548,7 @@ where
                 // user of the slider, a horizontal slider is expected. So, we
                 // set the minimum measurement based on a horizontal
                 // orientation.
-                Size::new(width.min(minimum_size), static_side)
+                Size::new(width.max(minimum_size), static_side)
             }
         }
     }