cleanup datamatrix generator

barcode.py

@@ -1,78 +1,67 @@
 from pylibdmtx import pylibdmtx as dmtx
 from PIL import Image, ImageDraw, ImageOps
 
-tgt = 'cmdsite/polls/static/polls/barcode.png'
-# barcode min value = 0
-# barcode max value = 999999 (999,999) = 1 million values
-val = '564321'
-#barcode = dmtx.encode(val)
-#barcodeimg = Image.frombytes('RGB', (barcode.width, barcode.height), barcode.pixels)
-# img.convert('1') # convert rgb to monochrome
-# img.save('barcode.png')
-
 white = (255, 255, 255)
 black = (0, 0, 0)
-
 nullimg = Image.new('RGB', (9, 15), white)
 
+chars = [0] * 10
+
 # Draw zero
-zero = nullimg.copy()
+chars[0] = nullimg.copy()
-draw = ImageDraw.Draw(zero)
+draw = ImageDraw.Draw(chars[0])
 draw.rectangle([(0, 0), (8, 14)], fill=white, outline=black, width=3)
 
 # Draw one
-one = nullimg.copy()
+chars[1] = nullimg.copy()
-draw = ImageDraw.Draw(one)
+draw = ImageDraw.Draw(chars[1])
 draw.rectangle([(3, 0), (5, 14)], fill=black, outline=black, width=3)
 
 # Draw eight
-eight = zero.copy()
+chars[8] = chars[0].copy()
-draw = ImageDraw.Draw(eight)
+draw = ImageDraw.Draw(chars[8])
 draw.rectangle([(3, 6), (5, 8)], fill=black, outline=black, width=3)
 
 # Draw two and three
-two = eight.copy()
+chars[2] = chars[8].copy()
-draw = ImageDraw.Draw(two)
+draw = ImageDraw.Draw(chars[2])
 draw.rectangle([(0, 3), (2, 5)], fill=white, outline=white, width=3)
-three = two.copy() # copy to three
+chars[3] = chars[2].copy() # copy to three
 draw.rectangle([(6, 9), (8, 11)], fill=white, outline=white, width=3)
 # Finish three
-draw = ImageDraw.Draw(three)
+draw = ImageDraw.Draw(chars[3])
 draw.rectangle([(0, 9), (2, 11)], fill=white, outline=white, width=3)
 
 # Draw nine
-nine = eight.copy()
+chars[9] = chars[8].copy()
-draw = ImageDraw.Draw(nine)
+draw = ImageDraw.Draw(chars[9])
 draw.rectangle([(0, 9), (5, 14)], fill=white, outline=white, width=3)
 
 # draw four
-four = nine.copy()
+chars[4] = chars[9].copy()
-draw = ImageDraw.Draw(four)
+draw = ImageDraw.Draw(chars[4])
 draw.rectangle([(3, 0), (5, 2)], fill=white, outline=white, width=3)
 
 # draw five
-five = eight.copy()
+chars[5] = chars[8].copy()
-draw = ImageDraw.Draw(five)
+draw = ImageDraw.Draw(chars[5])
 draw.rectangle([(6, 3), (8, 5)], fill=white, outline=white, width=3)
 draw.rectangle([(0, 9), (2, 11)], fill=white, outline=white, width=3)
 
 # draw six
-six = eight.copy()
+chars[6] = chars[8].copy()
-draw = ImageDraw.Draw(six)
+draw = ImageDraw.Draw(chars[6])
 draw.rectangle([(3, 0), (8, 5)], fill=white, outline=white, width=3)
 
 # draw seven
-seven = eight.copy()
+chars[7] = chars[8].copy()
-draw = ImageDraw.Draw(seven)
+draw = ImageDraw.Draw(chars[7])
 draw.rectangle([(0, 3), (5, 14)], fill=white, outline=white, width=3)
 
 tgt = 'cmdsite/polls/static/polls/'
 
-# create 'font'
-chars = [zero, one, two, three, four, five, six, seven, eight, nine]
-
 def dmxcreate(value):
-    val = str(value)
+    val = str(int(value))
     # create value image
     valimg = Image.new('RGB',
                        (((9 * len(val)) + (3 * (len(val) - 1))), 15),
@@ -92,25 +81,9 @@ def dmxcreate(value):
                      dmximg.height + valimg.height),
                     white)
     img.paste(dmximg, (round(abs((dmximg.width - img.width) / 2)), 0))
-    # img.paste(dmximg)
     img.paste(valimg, (round(abs((valimg.width - img.width) / 2)),
                        dmximg.height))
-    # img.paste(valimg, (0, dmximg.height))
-    return img
-
-# combine images
-#finalimg = Image.new('RGB', (barcodeimg.width, barcodeimg.height + 15), white)
-#finalimg.paste(barcodeimg)
-
-# add transparency
-# finalimage = barcodeandnumbers.copy()
-# finalimage.putalpha(ImageOps.invert(barcodeandnumbers).convert('L'))
-# finalimage.save(tgt + 'imagename.png')
-
-# digit size = 9px X 15px
-# numbervalue width = 9 * len(numbervalue) + ((len(numbervalue) - 1) * 3)
-# barcode size = 80px x 80px
-# total height of finalimage = 98px
-# total width = (80 | 84 | 96 | 108)px
-# total width digits = (1-6 | 7 | 8 | 9)
     
+    # Return grayscale image with transparency
+    img.putalpha(ImageOps.invert(img).convert('L'))
+    return img.convert('L')