mistakes were fixed and sins were committed

src/core/text/mod.rs

@@ -91,8 +91,12 @@ impl Widget for Text {
         painter.texture_within(&tex.handle, region);
     }
 
-    fn desired_size(&mut self, ctx: &mut SizeCtx) -> Size {
-        Size::abs(self.update_buf(ctx).size())
+    fn desired_width(&mut self, ctx: &mut SizeCtx) -> Len {
+        Len::abs(self.update_buf(ctx).size().x)
+    }
+
+    fn desired_height(&mut self, ctx: &mut SizeCtx) -> Len {
+        Len::abs(self.update_buf(ctx).size().y)
     }
 }