revert widget trait

packages/tui/src/render.rs

@@ -43,7 +43,7 @@ pub(crate) fn render_vnode(
             }
 
             impl<'a> RinkWidget for Label<'a> {
-                fn render(self, area: Rect, buf: &mut RinkBuffer) {
+                fn render(self, area: Rect, mut buf: RinkBuffer) {
                     for (i, c) in self.text.char_indices() {
                         let mut new_cell = RinkCell::default();
                         new_cell.set_style(self.style);
@@ -81,7 +81,7 @@ pub(crate) fn render_vnode(
 }
 
 impl RinkWidget for &Node {
-    fn render(self, area: Rect, mut buf: &mut RinkBuffer<'_>) {
+    fn render(self, area: Rect, mut buf: RinkBuffer<'_>) {
         use tui::symbols::line::*;
 
         enum Direction {

packages/tui/src/widget.rs

@@ -41,7 +41,7 @@ impl<'a> RinkBuffer<'a> {
 }
 
 pub trait RinkWidget {
-    fn render(self, area: Rect, buf: &mut RinkBuffer);
+    fn render(self, area: Rect, buf: RinkBuffer);
 }
 
 pub struct WidgetWithContext<T: RinkWidget> {
@@ -57,8 +57,7 @@ impl<T: RinkWidget> WidgetWithContext<T> {
 
 impl<T: RinkWidget> Widget for WidgetWithContext<T> {
     fn render(self, area: Rect, buf: &mut Buffer) {
-        let mut rbuf = RinkBuffer::new(buf, self.config);
-        self.widget.render(area, &mut rbuf);
+        self.widget.render(area, RinkBuffer::new(buf, self.config));
     }
 }