更新 HEICFile 和相关类以支持 'iref' 功能，添加获取网格布局的方法，增强文件分析功能

main.py

@@ -14,11 +14,21 @@ def analyze_file(filename: str):
     if primary_id:
         print(f"The primary item ID is: {primary_id}")
 
-        # --- Use our new feature! ---
+        # Get the primary image dimensions
         size = heic_file.get_image_size(primary_id)
         if size:
             print(f"Primary image dimensions (WxH): {size[0]} x {size[1]}")
-    
+        
+        # --- Use our new feature! ---
+        grid_layout = heic_file.get_grid_layout()
+        if grid_layout:
+            print(f"Primary image is a grid composed of these item IDs: {grid_layout}")
+            # Optional: Get size of the first tile to see the difference
+            first_tile_id = grid_layout[0]
+            tile_size = heic_file.get_image_size(first_tile_id)
+            if tile_size:
+                print(f"  - Size of the first tile (ID {first_tile_id}): {tile_size[0]} x {tile_size[1]}")
+
     print("\n" + "="*40 + "\n")
 
 def main():