print incremental sequence in labels

data/triggers-available/print_label.py

@@ -14,6 +14,7 @@ import cups
 import tempfile
 from PIL import Image, ImageFont, ImageDraw
 
+KEEP_IMG = False
 LABEL_WIDTH = 13488
 LABEL_HEIGHT = 3744
 
@@ -22,7 +23,7 @@ FONT_TEXT_ENCODING = 'latin-1'
 FONT_BARCODE = 'free3of9.ttf'
 
 PRINTER_NAME = None
-
+#PRINTER_NAME = 'DYMO_LabelWriter_450'
 
 
 def _get_resource(filename):
@@ -33,7 +34,7 @@ def build_label(w, h, barcode_text, line1, line2, font_text=FONT_TEXT, font_barc
     barcode_text = "*" + barcode_text + "*"
     line1 = unicode(line1, 'utf-8').encode(FONT_TEXT_ENCODING, 'ignore')
     line2 = unicode(line2, 'utf-8').encode(FONT_TEXT_ENCODING, 'ignore')
-    fontbar = ImageFont.truetype(_get_resource(font_barcode), 1200)
+    fontbar = ImageFont.truetype(_get_resource(font_barcode), 2200)
     fontnorm = ImageFont.truetype(_get_resource(font_text), 780)
     image = Image.new('RGB', (w, h), (255, 255, 255))
     draw = ImageDraw.Draw(image)
@@ -42,9 +43,13 @@ def build_label(w, h, barcode_text, line1, line2, font_text=FONT_TEXT, font_barc
     wnorm2, hnorm2 = draw.textsize(line2, font=fontnorm)
     draw.text(((w-wnorm1)/2, -1200+(h-hnorm1)/2), line1, (0, 0, 0), font=fontnorm)
     draw.text(((w-wnorm2)/2, -450+(h-hnorm2)/2), line2, (0, 0, 0), font=fontnorm)
-    draw.text(((w-wbar)/2, 750+(h-hbar)/2), barcode_text, (0, 0, 0), font=fontbar)
-    tmpfile = tempfile.NamedTemporaryFile(prefix='eventman_print_label_', suffix='.png')
-    image.save(tmpfile, dpi=[600,300], format='png')
+    draw.text(((w-wbar)/2, 850+(h-hbar)/2), barcode_text, (0, 0, 0), font=fontbar)
+    if not KEEP_IMG:
+        tmpfile = tempfile.NamedTemporaryFile(prefix='eventman_print_label_', suffix='.png')
+    else:
+        tmpfile = tempfile.mktemp(prefix='eventman_print_label_', suffix='.png')
+        tmpfile = open(tmpfile, 'wb')
+    image.save(tmpfile, dpi=[600, 300], format='png')
     return tmpfile
 
 
@@ -59,8 +64,9 @@ def run():
     sys.stdin.read()
     name = ' '.join([os.environ.get('NAME') or '', os.environ.get('SURNAME') or ''])
     company = os.environ.get('COMPANY') or ''
-    person_id = os.environ.get('PERSON_ID', '').upper()
-    label_file = build_label(LABEL_WIDTH, LABEL_HEIGHT, person_id, name, company)
+    # Print the decimal value SEQ as an hex of at least 6 digits.
+    seq = os.environ.get('SEQ_HEX', '0')
+    label_file = build_label(LABEL_WIDTH, LABEL_HEIGHT, seq, name, company)
     print_label(label_file, name)