Change cutleft to support selecting a single column

cutleft.py

@@ -82,7 +82,7 @@ def stitch_images(image_list):
 
     return combined
 
-def process_single_pdf(filename, shift_offset=0):
+def process_single_pdf(filename, shift_offset=0, max_per_file=5):
     """
     Converts PDF to stitched images.
     Returns a tuple: (preview_image_resized, list_of_split_images, schema_dict)
@@ -94,6 +94,13 @@ def process_single_pdf(filename, shift_offset=0):
 
         for img in pages:
             width, height = img.size
+
+            if max_per_file == 1:
+                # If Single Page mode, take the full width (ignore shift/crop)
+                left = 0
+                right = width
+            else:
+                # Original "Cutleft" logic (approx 1/3 width)
                 left = 100 + shift_offset
                 right = (width // 3) + 100 + shift_offset
 
@@ -110,7 +117,7 @@ def process_single_pdf(filename, shift_offset=0):
             return None
 
         # 1. Generate Schema / Distribution
-        col_distribution = distribute_pages(len(cropped_images), max_per_file=5)
+        col_distribution = distribute_pages(len(cropped_images), max_per_file=max_per_file)
 
         # 2. Generate Split Images (Full Resolution)
         split_images = []
@@ -168,6 +175,7 @@ class ImageReviewer:
         self.files = file_list
         self.index = 0
         self.current_shift = 0
+        self.current_max_per_file = 5
         self.current_preview = None # Only stores the resized preview for GUI
         self.is_processing = False
 
@@ -192,6 +200,8 @@ class ImageReviewer:
         self.root.bind('n', lambda e: self.on_shift(50))
         self.root.bind('N', lambda e: self.on_shift(100))
         self.root.bind('t', lambda e: self.on_shift(-50))
+        self.root.bind('1', lambda e: self.on_set_max_pages(1)) # New Binding
+
 
         # Start background pre-fetcher
         self.bg_thread = Thread(target=self.prefetch_worker, daemon=True)
@@ -204,6 +214,14 @@ class ImageReviewer:
         self.root.focus_force()
         self.root.mainloop()
 
+    def on_set_max_pages(self, count):
+        if self.is_processing:
+            return
+        self.current_max_per_file = count
+        print(f"Setting max pages per file: {count}")
+        # Trigger reprocessing with current settings
+        self.trigger_processing(self.files[self.index], self.current_shift)
+
     def prefetch_worker(self):
         """Background thread to process the NEXT image constantly."""
         idx_to_process = 0
@@ -249,7 +267,7 @@ class ImageReviewer:
         self.label_info.configure(text=f"Processing {filename} (Shift {shift})... Please wait.", fg="red")
 
         def worker():
-            res = process_single_pdf(filename, shift)
+            res = process_single_pdf(filename, shift, self.current_max_per_file)
             self.manual_queue.put(res)
 
         Thread(target=worker, daemon=True).start()
@@ -309,6 +327,7 @@ class ImageReviewer:
             return
         self.index += 1
         self.current_shift = 0
+        self.current_max_per_file = 5 # Reset to default
         self.load_current_image(use_prefetch=True)
 
 # --- Entry Point ---
@@ -317,4 +336,3 @@ if __name__ == "__main__":
         print("No PDF files found.")
     else:
         app = ImageReviewer(files)
-