unwiden shortcut

copienator/commands/cutleft.py

@@ -195,6 +195,7 @@ class ImageReviewer:
         self.root.bind("N", lambda _event: self.on_shift(2 * CROP_SHIFT_STEP))
         self.root.bind("t", lambda _event: self.on_shift(-CROP_SHIFT_STEP))
         self.root.bind("l", lambda _event: self.on_enlarge(CROP_WIDTH_STEP))
+        self.root.bind("L", lambda _event: self.on_enlarge(-CROP_WIDTH_STEP))
         self.root.bind("1", lambda _event: self.on_set_max_pages(1))
 
         Thread(target=self.prefetch_worker, daemon=True).start()
@@ -290,7 +291,7 @@ class ImageReviewer:
                 f"Files: {schema['number_of_files']} | "
                 f"Cols: {schema['columns_per_file']}\n"
                 "Enter: Save and next | s: flag error and skip | n: +50 | N: +100 | t: -50 | "
-                "l: widen by 50 | 1: use full pages"
+                "l: widen by 50 | Shift+l: undo widening by 50 | 1: use full pages"
             ),
             fg="black",
         )
@@ -305,7 +306,7 @@ class ImageReviewer:
     def on_enlarge(self, amount: int) -> None:
         if self.is_processing:
             return
-        self.current_width_offset += amount
+        self.current_width_offset = max(0, self.current_width_offset + amount)
         print(f"Applying extra width: {self.current_width_offset}")
         self.trigger_processing(self.files[self.index], self.current_shift)