Wrap text in a unicode-aware way

src/frame.rs

@@ -5,6 +5,7 @@ use crossterm::style::ContentStyle;
 use crate::buffer::Buffer;
 pub use crate::buffer::{Pos, Size};
 use crate::widthdb::WidthDB;
+use crate::wrap;
 
 #[derive(Debug, Default)]
 pub struct Frame {
@@ -55,6 +56,10 @@ impl Frame {
         self.widthdb.width(s)
     }
 
+    pub fn wrap(&mut self, text: &str, width: usize) -> Vec<usize> {
+        wrap::wrap(text, width, &mut self.widthdb)
+    }
+
     pub fn write(&mut self, pos: Pos, content: &str, style: ContentStyle) {
         self.buffer.write(&mut self.widthdb, pos, content, style);
     }