stuff for ime positioning

src/core/text/edit.rs

@@ -126,26 +126,35 @@ impl<'a> TextEditCtx<'a> {
         }
     }
 
+    pub fn replace(&mut self, len: usize, text: &str) {
+        for _ in 0..len {
+            self.delete();
+        }
+        self.insert_inner(text, false);
+    }
+
     pub fn insert(&mut self, text: &str) {
         let mut lines = text.split('\n');
         let Some(first) = lines.next() else {
             return;
         };
-        self.insert_inner(first);
+        self.insert_inner(first, true);
         for line in lines {
             self.newline();
-            self.insert_inner(line);
+            self.insert_inner(line, true);
         }
     }
 
-    fn insert_inner(&mut self, text: &str) {
+    fn insert_inner(&mut self, text: &str, mov: bool) {
         if let Some(cursor) = &mut self.text.cursor {
             let line = &mut self.text.view.buf.lines[cursor.line];
             let mut line_text = line.text().to_string();
             line_text.insert_str(cursor.index, text);
             line.set_text(line_text, line.ending(), line.attrs_list().clone());
-            for _ in 0..text.len() {
-                self.motion(Motion::Right);
+            if mov {
+                for _ in 0..text.chars().count() {
+                    self.motion(Motion::Right);
+                }
             }
         }
     }