switch to element defined span lens + better size fn

src/core/text/edit.rs

@@ -41,8 +41,8 @@ impl Widget for TextEdit {
         }
     }
 
-    fn desired_size(&mut self, ctx: &mut SizeCtx) -> UiVec2 {
-        UiVec2::abs(self.view.draw(ctx).size())
+    fn desired_size(&mut self, ctx: &mut SizeCtx) -> Size {
+        Size::abs(self.view.draw(ctx).size())
     }
 }
 
@@ -96,7 +96,7 @@ impl<'a> TextEditCtx<'a> {
             .join("\n");
         self.text
             .buf
-            .set_text(self.font_system, "", &Attrs::new(), Shaping::Advanced);
+            .set_text(self.font_system, "", &Attrs::new(), Shaping::Advanced, None);
         if let Some(cursor) = &mut self.text.cursor {
             cursor.line = 0;
             cursor.index = 0;