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Adding new --rotate argument to brother_ql_create

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Philipp Klaus
2016-12-13 15:54:20 +01:00
parent 9da7e0ba28
commit 74faec45bd
2 changed files with 15 additions and 5 deletions
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7
README.md
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@@ -60,8 +60,8 @@ If you want to find out about its options, just call the tool with `--help`:
giving:
usage: brother_ql_create [-h] [--model MODEL] [--label-size LABEL_SIZE]
[--threshold THRESHOLD] [--no-cut]
[--loglevel LOGLEVEL]
[--rotate {0,90,180,270}] [--threshold THRESHOLD]
[--no-cut] [--loglevel LOGLEVEL]
image [outfile]
positional arguments:
@@ -77,6 +77,9 @@ giving:
--label-size LABEL_SIZE, -s LABEL_SIZE
The label size (and kind) to use. Check available ones
with `brother_ql_info list-label-sizes`.
--rotate {0,90,180,270}, -r {0,90,180,270}
Rotate the image (counterclock-wise) by this amount of
degrees.
--threshold THRESHOLD, -t THRESHOLD
The threshold value (in percent) to discriminate
between black and white pixels.

13
brother_ql/brother_ql_create.py
View File

@@ -28,6 +28,7 @@ def main():
parser.add_argument('outfile', nargs='?', type=argparse.FileType('wb'), default=stdout, help='The file to write the instructions to. Defaults to stdout.')
parser.add_argument('--model', '-m', default='QL-500', help='The printer model to use. Check available ones with `brother_ql_info list-models`.')
parser.add_argument('--label-size', '-s', default='62', help='The label size (and kind) to use. Check available ones with `brother_ql_info list-label-sizes`.')
parser.add_argument('--rotate', '-r', choices=('0', '90', '180', '270'), default='auto', help='Rotate the image (counterclock-wise) by this amount of degrees.')
parser.add_argument('--threshold', '-t', type=float, default=70.0, help='The threshold value (in percent) to discriminate between black and white pixels.')
parser.add_argument('--no-cut', dest='cut', action='store_false', help="Don't cut the tape after printing the label.")
parser.add_argument('--loglevel', type=lambda x: getattr(logging, x), default=logging.WARNING, help='Set to DEBUG for verbose debugging output to stderr.')
@@ -50,7 +51,7 @@ def main():
qlr.exception_on_warning = True
create_label(qlr, args.image, args.label_size, threshold=args.threshold, cut=args.cut)
create_label(qlr, args.image, args.label_size, threshold=args.threshold, cut=args.cut, rotate=args.rotate)
args.outfile.write(qlr.data)
@@ -60,6 +61,7 @@ def create_label(qlr, image, label_size, threshold=70, cut=True, **kwargs):
dots_printable = label_specs['dots_printable']
right_margin_dots = label_specs['right_margin_dots']
device_pixel_width = qlr.get_pixel_width()
rotate = kwargs.get('rotate', 'auto')
if isinstance(image, Image.Image):
im = image
@@ -69,6 +71,8 @@ def create_label(qlr, image, label_size, threshold=70, cut=True, **kwargs):
raise NotImplementedError("The image argument needs to be an Image() instance or the filename to an image.")
if label_specs['kind'] == ENDLESS_LABEL:
if rotate != 'auto' and int(rotate) != 0:
im = im.rotate(int(rotate), expand=True)
if im.size[0] != dots_printable[0]:
hsize = int((dots_printable[0] / im.size[0]) * im.size[1])
im = im.resize((dots_printable[0], hsize), Image.ANTIALIAS)
@@ -80,8 +84,11 @@ def create_label(qlr, image, label_size, threshold=70, cut=True, **kwargs):
im = new_im
elif label_specs['kind'] == DIE_CUT_LABEL:
im = im.convert("L")
if im.size[0] == dots_printable[1] and im.size[1] == dots_printable[0]:
im = im.rotate(90, expand=True)
if rotate == 'auto':
if im.size[0] == dots_printable[1] and im.size[1] == dots_printable[0]:
im = im.rotate(90, expand=True)
elif int(rotate) != 0:
im = im.rotate(rotate, expand=True)
if im.size[0] != dots_printable[0] or im.size[1] != dots_printable[1]:
sys.exit("Check your image dimensions. Expecting: " + str(dots_printable))
new_im = Image.new("L", (device_pixel_width, dots_printable[1]), 255)