Update app.py

app.py

@@ -674,8 +674,8 @@ def create_simple_genome_diagram(gene_results: List[Dict[str, Any]], genome_leng
         font = ImageFont.truetype("/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf", 12)
         title_font = ImageFont.truetype("/usr/share/fonts/truetype/dejavu/DejaVuSans-Bold.ttf", 16)
     except:
-        font = None
-        title_font = None
+        font = ImageFont.load_default()
+        title_font = ImageFont.load_default()
     
     # Draw title
     draw.text((margin, margin // 2), "Genome SHAP Analysis", 
@@ -696,7 +696,6 @@ def create_simple_genome_diagram(gene_results: List[Dict[str, Any]], genome_leng
         step = genome_length // num_ticks
     
     # Draw scale markers
-    # Use min(genome_length, step * num_ticks) in range to avoid overshooting
     for i in range(0, genome_length + 1, step):
         x_coord = margin + i * scale
         draw.line([
@@ -730,7 +729,8 @@ def create_simple_genome_diagram(gene_results: List[Dict[str, Any]], genome_leng
         
         # Prepare gene name label
         label = f"{gene['gene_name']}"
-        label_width, label_height = draw.textsize(label, font=font)
+        # Use font.getsize to get text dimensions
+        label_width, label_height = font.getsize(label)
         
         # Alternate label positions above/below
         if idx % 2 == 0:
@@ -750,7 +750,6 @@ def create_simple_genome_diagram(gene_results: List[Dict[str, Any]], genome_leng
             txt_draw = ImageDraw.Draw(txt_img)
             txt_draw.text((0, 0), label, font=font, fill='black')
             rotated_img = txt_img.rotate(90, expand=True)
-            # Paste at (start_x, text_y) casted to int
             img.paste(rotated_img, (int(start_x), int(text_y)), rotated_img)
     
     # Draw legend