convenience methods for span

src/bin/test/main.rs

@@ -64,7 +64,7 @@ impl DefaultAppState for Client {
                 let child = image(include_bytes!("assets/sungals.png"))
                     .center()
                     .add_strong(ctx);
-                span_add(ctx).children.push(child);
+                span_add(ctx).push(child);
             })
             .sized((150, 150))
             .align(Align::BOT_RIGHT);
@@ -72,7 +72,7 @@ impl DefaultAppState for Client {
         let del_button = rect(Color::RED)
             .radius(30)
             .on(CursorSense::click(), move |ctx| {
-                span_add(ctx).children.pop();
+                span_add(ctx).pop();
             })
             .sized((150, 150))
             .align(Align::BOT_LEFT);
@@ -121,7 +121,7 @@ impl DefaultAppState for Client {
                 let msg_box = text
                     .background(rect(Color::WHITE.darker(0.5)))
                     .add_strong(ctx);
-                texts(ctx).children.push(msg_box);
+                texts(ctx).push(msg_box);
             })
             .add(&mut rsc);
         let text_edit_scroll = (

src/widget/position/span.rs

@@ -62,6 +62,14 @@ impl Span {
         self
     }
 
+    pub fn push(&mut self, w: WidgetHandle) {
+        self.children.push(w);
+    }
+
+    pub fn pop(&mut self) -> Option<WidgetHandle> {
+        self.children.pop()
+    }
+
     fn len_sum(&mut self, ctx: &mut SizeCtx) -> Len {
         let gap = self.gap * self.children.len().saturating_sub(1) as f32;
         self.children.iter().fold(Len::abs(gap), |mut s, id| {