table: Add refresh method to Table, for reload table use when the columns or rows has been updated. (#293)

crates/story/src/table_story.rs

@@ -283,13 +283,8 @@ impl TableDelegate for StockTableDelegate {
     }
 
     fn col_width(&self, col_ix: usize) -> Option<Pixels> {
-        if let Some(col) = self.columns.get(col_ix) {
-            Some(
-                match col.id.as_ref() {
-                    _ => 120.0,
-                }
-                .into(),
-            )
+        if let Some(_) = self.columns.get(col_ix) {
+            Some(120.0.into())
         } else {
             None
         }

crates/ui/src/table.rs

@@ -288,6 +288,11 @@ where
         cx.notify();
     }
 
+    /// When we update columns or rows, we need to refresh the table.
+    pub fn refresh(&mut self, cx: &mut ViewContext<Self>) {
+        self.prepare_col_groups(cx);
+    }
+
     fn prepare_col_groups(&mut self, cx: &mut ViewContext<Self>) {
         self.col_groups = (0..self.delegate.cols_count())
             .map(|col_ix| ColGroup {