Contact sheet small size fixes

tools/contact_sheet.py

@@ -2,7 +2,9 @@ import base64
 import logging
 import io
 import datetime
+import math
 from pathlib import Path
+
 from typing import Any, Dict, List
 from PIL import Image, ImageDraw, ImageFont, ImageOps
 import config
@@ -14,8 +16,7 @@ logger = logging.getLogger("MooseCP")
 async def handle(args: Dict[str, Any]):
     """
     Generates a contact sheet of images.
-    Grid: 10 columns x 7 rows (70 images total).
-    Sized for optimal token usage (1120 tokens) on llama.cpp.
+    Sized for optimal token usage according to config values.
     """
     dir_path_str = args.get("path")
     page = int(args.get("page", 1))
@@ -44,10 +45,10 @@ async def handle(args: Dict[str, Any]):
     }
     sort_label = sort_labels.get(sort_by, "Name (alphabetical)")
 
-    # Fixed grid dimensions for token optimization
-    COLS = config.CONTACT_SHEET_COLS
-    ROWS = config.CONTACT_SHEET_ROWS
-    PAGE_SIZE = COLS * ROWS
+    # Grid dimensions for token optimization (see config.py)
+    MAX_COLS = config.CONTACT_SHEET_COLS
+    MAX_ROWS = config.CONTACT_SHEET_ROWS
+    PAGE_SIZE = MAX_COLS * MAX_ROWS
 
     
     total_files = len(file_info_list)
@@ -56,9 +57,21 @@ async def handle(args: Dict[str, Any]):
     if not paged_files:
         return {"text": f"No images found on page {page}."}
 
-    thumb_size = 192 # 192 / 48 = 4 patches per side
-    canvas_w = COLS * thumb_size
-    canvas_h = ROWS * thumb_size
+    # Dynamic grid sizing to avoid blank space
+    n_images = len(paged_files)
+    thumb_size = config.CONTACT_SHEET_THUMB_SIZE
+    
+    if n_images <= config.CONTACT_SHEET_ROWS ** 2:
+        # Smallest square-ish grid that fits all
+        cols = math.ceil(math.sqrt(n_images))
+        rows = math.ceil(n_images / cols)
+    else:
+        # Lock rows, expand columns
+        rows = config.CONTACT_SHEET_ROWS
+        cols = math.ceil(n_images / config.CONTACT_SHEET_ROWS)
+    
+    canvas_w = cols * thumb_size
+    canvas_h = rows * thumb_size
     
     canvas = Image.new('RGB', (canvas_w, canvas_h), (30, 30, 30))
     draw = ImageDraw.Draw(canvas)
@@ -87,8 +100,8 @@ async def handle(args: Dict[str, Any]):
     start_idx = (page - 1) * PAGE_SIZE
     for i, info in enumerate(paged_files):
         full_path = info["path"]
-        row = i // COLS
-        col = i % COLS
+        row = i // cols
+        col = i % cols
         
         x = col * thumb_size
         y = row * thumb_size