Retain layout sizes by pixel axis

src/widget/text/mod.rs

@@ -54,7 +54,7 @@ impl TextView {
 
     fn render(&mut self, painter: &mut Painter) -> &RenderedText {
         let width = if self.attrs.wrap {
-            Some(painter.px_size().x)
+            Some(painter.px_len(Axis::X))
         } else {
             None
         };