added image scrolling support

scrolltext.py

@@ -19,8 +19,7 @@ def create_image(text):
 
     return img
 
-def create_scrolltext(text, delay, color):
-    img = create_image(text)
+def scroll_image(img, delay, color):
 
     w, h = img.size
 
@@ -39,23 +38,37 @@ def create_scrolltext(text, delay, color):
 
     return anim
 
+def create_scrolltext(text, delay, color):
+    img = create_image(text)
+    return scroll_image(img, delay, color)
+
 if __name__ == '__main__':
     parser = argparse.ArgumentParser(description='Generate scrolltext BML files')
     parser.add_argument('-d', '--delay', type=int, default=100)
     parser.add_argument('-c', '--color', default='#ffffff')
+    parser.add_argument('-i', '--image', type=str)
+    parser.add_argument('-t', '--text', type=str)
     parser.add_argument('output_file')
-    parser.add_argument('text')
-
     args = parser.parse_args()
+
+    if args.image is not None and args.text is not None:
+        print('--image and --text are exclusive', file=sys.stderr)
+        sys.exit(1)
+
     if args.color.startswith('#'):
         args.color = args.color[1:]
-    r = int(args.color[0:2], 16)/255
-    g = int(args.color[2:4], 16)/255
-    b = int(args.color[4:6], 16)/255
+    r = int(args.color[0:2], 16)//255
+    g = int(args.color[2:4], 16)//255
+    b = int(args.color[4:6], 16)//255
     col = (r, g, b)
 
-    anim = create_scrolltext(args.text, args.delay, col)
-    writebml.writeBml(anim, 'scrolltext.bml')
+    if args.text:
+        anim = create_scrolltext(args.text, args.delay, col)
+    elif args.image:
+        img = Image.open(args.image)
+        img.convert(mode='RGB')
+        anim = scroll_image(img, args.delay, col)
+    writebml.writeBml(anim, args.output_file)
 
 '''
 num = 10