Insert paths to fonts for Docker version

src/mkimage.py

@@ -131,7 +131,7 @@ def format_authors(authors_list):
     return authors_as_string
 # def format_authors ends here
 
-def add_watermark(image, watermarkstring):
+def add_watermark(image, watermarkstring, big_red_font):
     """Add a string of text across the cover. Return a rotated image object"""
 
     # https://codenhagen.wordpress.com/2015/12/04/putting-rotated-text-on-images-with-pillow-python/
@@ -140,7 +140,6 @@ def add_watermark(image, watermarkstring):
 
     tmp_img = Image.new("RGBA", (DIMENSIONS[1], DIMENSIONS[0]), (0,0,0,0))
     font_colour = (255,0,0)
-    big_red_font = ImageFont.truetype("Helvetica", 200)
     text_canvas = ImageDraw.Draw(tmp_img)
 
     text_canvas.text((0, 0), watermarkstring, font=big_red_font, fill=font_colour)
@@ -172,7 +171,7 @@ def centered(textstring, font_spec):
     return coordinate
 # def centered ends here
 
-def create_cover(metadata_dict, image_directory, cover_filename, image_is_file):
+def create_cover(metadata_dict, image_directory, cover_filename, image_is_file, big_bold_font, medium_font, small_font):
     """Create a cover using PIL"""
 
     img = Image.new("RGB", DIMENSIONS, BACKGROUND)
@@ -198,10 +197,6 @@ def create_cover(metadata_dict, image_directory, cover_filename, image_is_file):
     else:
         fill_colour_top = (255, 255, 255)
 
-    big_bold_font = ImageFont.truetype(font="Times New Roman Bold", size=120)
-    medium_font = ImageFont.truetype(font="Times New Roman", size=100)
-    small_font = ImageFont.truetype(font="Times New Roman", size=80)
-
     text_draw = ImageDraw.Draw(img)
 
     # these will eventually also become candidates for multilines
@@ -256,8 +251,20 @@ def main():
     parser.add_argument("-c", "--config", help="File that contains the publication data.", default="publication.cfg")
     parser.add_argument("-o", "--output", help="Name of output file.", default="Cover.jpg")
     parser.add_argument("-nw", "--nowatermark", help="Do not add a watermark to the image.", action="store_true")
+    parser.add_argument("-lf", "--localfonts", help="Use local fonts, rather than those used in Docker", action="store_true")
     args = parser.parse_args()
 
+    if args.localfonts:
+        big_red_font = ImageFont.truetype("Helvetica", 200)
+        big_bold_font = ImageFont.truetype(font="Times New Roman Bold", size=120)
+        medium_font = ImageFont.truetype(font="Times New Roman", size=100)
+        small_font = ImageFont.truetype(font="Times New Roman", size=80)
+    else:
+        big_red_font = ImageFont.truetype("/usr/share/fonts/truetype/msttcorefonts/comic.ttf", 200)
+        big_bold_font = ImageFont.truetype(font="/usr/share/fonts/truetype/msttcorefonts/timesbd.ttf", size=120)
+        medium_font = ImageFont.truetype(font="/usr/share/fonts/truetype/msttcorefonts/times.ttf", size=100)
+        small_font = ImageFont.truetype(font="/usr/share/fonts/truetype/msttcorefonts/times.ttf", size=80)
+
     if args.config:
     # if os.path.exists("publication.cfg"):
         logging.info("Using %s as publication config" % (args.config))
@@ -294,12 +301,12 @@ def main():
         print("No valid image or directory given. Exiting.")
         sys.exit()
 
-    create_cover(METADATA_DICT, IMAGES, OUTFILE, image_is_file)
+    create_cover(METADATA_DICT, IMAGES, OUTFILE, image_is_file, big_bold_font, medium_font, small_font)
 
     if args.nowatermark:
         logging.info("No watermark. Be careful. This is not meant to be an official cover.")
     else:
-        add_watermark(OUTFILE, "Automatically generated cover.\nDo not use in production!")
+        add_watermark(OUTFILE, "Automatically generated cover.\nDo not use in production!", big_red_font)
 # def main ends here
 
 if __name__ == '__main__':