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new CLI: brother_ql

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This will slowly deprecate the other CLIs such as
* brother_ql_create
* brother_ql_print
* brother_ql_info
* brother_ql_analyze
* brother_ql_debug
This commit is contained in:
Philipp Klaus
2018-08-08 18:43:20 +02:00
parent 388eaae2d6
commit 160cea90d4
5 changed files with 358 additions and 164 deletions
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DEBUG.md
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### DEBUG
This document shows some ways to help debugging the package brother\_ql.
One way is to look into the binary raster instruction file, see the *Analyse* section.
The other way is to send those instructions to the printer one by one and check how it reacts, see the *Debug* section.
#### Analyse
To analyse a binary file containing Brother QL Raster instructions:
brother_ql_analyse 720x300_monochrome.bin --loglevel DEBUG
The tool will dissect your file and print the opcodes to stdout.
In addition, it creates PNG images of what the printer's output would look like.
They are saved to page0001.png etc. (yes, one .bin file can contain more than one "page").
This tool also has the `--help` option.
(This specific tool doesn't work on Python 2.)
#### Debug
If your printer has problems printing the instructions file, it may blink its LED (green or red) depending on the model. This can have many reasons, eg.:
* The selected label doesn't match.
* End of paper.
* Unsupported opcode (some printers require a mode switching opcode, others fail if such an instruction is sent; some do support data compression, others don't)
To debug this situation and find out which command could be the culprit, connect your printer via USB. (You don't get any status information via network).
You can use the supplied tool `brother_ql_debug` to send your problematic instructions file to the printer. It will be split into single instructions sent one after the other.
After every instruction, the printer will be given a chance to send a status response containing error information. Here is an example:
philipp@lion ~> brother_ql_debug ./720x151_monochrome.bin /dev/usb/lp0
INFO: CMD preamble FOUND. Instruction: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [...] 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
INFO: CMD init FOUND. Instruction: 1B 40
INFO: CMD status request FOUND. Instruction: 1B 69 53
INFO: Response from the device: 80 20 42 30 4F 30 00 00 00 00 3E 0A 00 00 15 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
INFO: Interpretation of the response: 'Reply to status request' (phase: Waiting to receive), 'Continuous length tape' 62x0 mm^2, errors: []
INFO: CMD media/quality FOUND. Instruction: 1B 69 7A CE 0A 3E 00 97 00 00 00 01 00
INFO: CMD margins FOUND. Instruction: 1B 69 64 23 00
INFO: CMD raster FOUND. Instruction: 67 00 5A 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 FF FF FF 1F FF FF FF FF FF F0 00 00 00 00 00 0F FF FF 03 FF FF FF FF E0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [...] 00 07 FF FF 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
INFO: Response from the device: 80 20 42 30 4F 30 00 00 00 00 3E 0A 00 00 15 00 00 00 06 01 00 00 00 00 00 00 00 00 00 00 00 00
INFO: Interpretation of the response: 'Phase change' (phase: Printing state), 'Continuous length tape' 62x0 mm^2, errors: []
INFO: CMD print FOUND. Instruction: 1A
TIME 1.60
INFO: Interpretation of the response: 'Printing completed' (phase: Printing state), 'Continuous length tape' 62x0 mm^2, errors: []
TIME 1.60
INFO: Interpretation of the response: 'Phase change' (phase: Waiting to receive), 'Continuous length tape' 62x0 mm^2, errors: []
Here, a command file was successfully printed. The last response should state the *Waiting to receive* phase.
If you want to confirm the sending of every single command individually, you can add the `--interactive` argument to the command line call.
If you're seeing any error there, open a new issue on Github containing the debugging output to get your device supported.

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LEGACY.md Normal file
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## Legacy User Interfaces
The following user interfaces of this package are still around but their use is now deprecated and they will
be removed in a future release of the package. This documentation still lists the old UI and how it was used.
### Create
The command line tool `brother_ql_create` is possibly the most important piece of software in this package.
It allows you to create a new instruction file in the label printers' raster language:
brother_ql_create --model QL-500 ./720x300_monochrome.png > 720x300_monochrome.bin
If you want to find out about its options, just call the tool with `--help`:
brother_ql_create --help
giving:
usage: brother_ql_create [-h] [--model MODEL] [--label-size LABEL_SIZE]
[--rotate {0,90,180,270}] [--threshold THRESHOLD]
[--dither] [--compress] [--red] [--600dpi] [--no-cut]
[--loglevel LOGLEVEL]
image [outfile]
positional arguments:
image The image file to create a label from.
outfile The file to write the instructions to. Defaults to
stdout.
optional arguments:
-h, --help show this help message and exit
--model MODEL, -m MODEL
The printer model to use. Check available ones with
`brother_ql_info list-models`.
--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.
--dither, -d Enable dithering when converting the image to b/w. If
set, --threshold is meaningless.
--compress, -c Enable compression (if available with the model).
Takes more time but results in smaller file size.
--red Create a label to be printed on black/red/white tape
(only with QL-8xx series on DK-22251 labels). You must
use this option when printing on black/red tape, even
when not printing red.
--600dpi Print with 600x300 dpi available on some models.
Provide your image as 600x600 dpi; perpendicular to
the feeding the image will be resized to 300dpi.
--no-cut Don't cut the tape after printing the label.
--loglevel LOGLEVEL Set to DEBUG for verbose debugging output to stderr.
The image argument should be a PNG/GIF/JPEG image file.
Here is the output of `brother_ql_info list-label-sizes` listing the available options for `--label-size`:
Supported label sizes:
Name Printable px Description
12 106 (12 mm endless)
29 306 (29 mm endless)
38 413 (38 mm endless)
50 554 (50 mm endless)
54 590 (54 mm endless)
62 696 (62 mm endless)
102 1164 (102 mm endless)
17x54 165 x 566 (17 x 54 mm^2)
17x87 165 x 956 (17 x 87 mm^2)
23x23 202 x 202 (23 x 23 mm^2)
29x42 306 x 425 (29 x 42 mm^2)
29x90 306 x 991 (29 x 90 mm^2)
39x90 413 x 991 (38 x 90 mm^2)
39x48 425 x 495 (39 x 48 mm^2)
52x29 578 x 271 (52 x 29 mm^2)
62x29 696 x 271 (62 x 29 mm^2)
62x100 696 x 1109 (62 x 100 mm^2)
102x51 1164 x 526 (102 x 51 mm^2)
102x152 1164 x 1660 (102 x 152 mm^2)
d12 94 x 94 (12 mm diameter, round)
d24 236 x 236 (24 mm diameter, round)
d58 618 x 618 (58 mm diameter, round)
**Pro Tip™**:
For the best results, use image files with the matching pixel dimensions. Die-cut labels have to be in the exact pixel dimensions stated above. For endless label rolls, you can provide image files with a pixel width as stated above. If you provide a file with different dimensions when creating an endless label file, it will be scaled to fit the width.
### Print
Once you have a Brother QL instruction file, you can send it to the printer like this:
cat my_label.bin > /dev/usb/lp1
Be sure to have permission to write to the device (usually adding yourself to the *lp* group is sufficient.
Or via network (if you have a LAN/WLAN enabled Brother QL):
nc 192.168.0.23 9100 < my_label.bin
You can also use the tool `brother_ql_print` (Py3 only) to send the instructions to your printer:
brother_ql_print 720x151_monochrome.bin /dev/usb/lp0
# or
brother_ql_print --backend network 720x151_monochrome.bin tcp://192.168.0.23:9100
# or (requires PyUSB: `pip install pyusb`)
brother_ql_print 720x151_monochrome.bin usb://0x04f9:0x2015
# or if you have multiple ones connected:
brother_ql_print 720x151_monochrome.bin usb://0x04f9:0x2015/000M6Z401370
# where 000M6Z401370 is the serial number (see lsusb output).
If your printer has problems printing the instructions file, it may blink its LED (green or red) depending on the model. This can have many reasons, eg.:
* The selected label doesn't match (make sure `--red` has been passed to `brother_ql_create` if you're using black/red labels).
* End of paper.
* Unsupported opcode (wrong `--model` when using `brother_ql_create`?)
### DEBUG
In case of trouble printing an instruction file, there are some ways to help debugging.
One way is to look into the binary raster instruction file, see the *Analyse* section.
The other way is to send those instructions to the printer one by one and check how it reacts, see the *Debug* section.
#### Analyse
To analyse a binary file containing Brother QL Raster instructions:
brother_ql_analyse 720x300_monochrome.bin --loglevel DEBUG
The tool will dissect your file and print the opcodes to stdout.
In addition, it creates PNG images of what the printer's output would look like.
They are saved to page0001.png etc. (yes, one .bin file can contain more than one "page").
This tool also has the `--help` option.
(This specific tool doesn't work on Python 2.)
#### Debug
If your printer has problems printing the instructions file, it may blink its LED (green or red) depending on the model. This can have many reasons, eg.:
* The selected label doesn't match.
* End of paper.
* Unsupported opcode (some printers require a mode switching opcode, others fail if such an instruction is sent; some do support data compression, others don't)
To debug this situation and find out which command could be the culprit, connect your printer via USB. (You don't get any status information via network).
You can use the supplied tool `brother_ql_debug` to send your problematic instructions file to the printer. It will be split into single instructions sent one after the other.
After every instruction, the printer will be given a chance to send a status response containing error information. Here is an example:
philipp@lion ~> brother_ql_debug ./720x151_monochrome.bin /dev/usb/lp0
INFO: CMD preamble FOUND. Instruction: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [...] 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
INFO: CMD init FOUND. Instruction: 1B 40
INFO: CMD status request FOUND. Instruction: 1B 69 53
INFO: Response from the device: 80 20 42 30 4F 30 00 00 00 00 3E 0A 00 00 15 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
INFO: Interpretation of the response: 'Reply to status request' (phase: Waiting to receive), 'Continuous length tape' 62x0 mm^2, errors: []
INFO: CMD media/quality FOUND. Instruction: 1B 69 7A CE 0A 3E 00 97 00 00 00 01 00
INFO: CMD margins FOUND. Instruction: 1B 69 64 23 00
INFO: CMD raster FOUND. Instruction: 67 00 5A 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 FF FF FF 1F FF FF FF FF FF F0 00 00 00 00 00 0F FF FF 03 FF FF FF FF E0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [...] 00 07 FF FF 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
INFO: Response from the device: 80 20 42 30 4F 30 00 00 00 00 3E 0A 00 00 15 00 00 00 06 01 00 00 00 00 00 00 00 00 00 00 00 00
INFO: Interpretation of the response: 'Phase change' (phase: Printing state), 'Continuous length tape' 62x0 mm^2, errors: []
INFO: CMD print FOUND. Instruction: 1A
TIME 1.60
INFO: Interpretation of the response: 'Printing completed' (phase: Printing state), 'Continuous length tape' 62x0 mm^2, errors: []
TIME 1.60
INFO: Interpretation of the response: 'Phase change' (phase: Waiting to receive), 'Continuous length tape' 62x0 mm^2, errors: []
Here, a command file was successfully printed. The last response should state the *Waiting to receive* phase.
If you want to confirm the sending of every single command individually, you can add the `--interactive` argument to the command line call.
If you're seeing any error there, open a new issue on Github containing the debugging output to get your device supported.

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README.md
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## Usage
The main user interface of this package are its command line tools.
You can also use its functionality from your own Python code (yet, there is no dedicated API documentation).
The following sections show how to use the most important CLI tools.
The main user interface of this package is the command line tool `brother_ql`.
### Create
Usage: brother_ql [OPTIONS] COMMAND [ARGS]...
The command line tool `brother_ql_create` is possibly the most important piece of software in this package.
It allows you to create a new instruction file in the label printers' raster language:
Command line interface for the brother_ql Python package.
brother_ql_create --model QL-500 ./720x300_monochrome.png > 720x300_monochrome.bin
Options:
-b, --backend [pyusb|network|linux_kernel]
-m, --model [QL-500|QL-550|QL-560|QL-570|QL-580N|QL-650TD|QL-700|QL-710W|QL-720NW|QL-800|QL-810W|QL-820NWB|QL-1050|QL-1060N]
-p, --printer PRINTER_IDENTIFIER
The identifier for the printer. This could
be a string like tcp://192.168.1.21:9100 for
a networked printer or
usb://0x04f9:0x2015/000M6Z401370 for a
printer connected via USB.
--debug
--help Show this message and exit.
If you want to find out about its options, just call the tool with `--help`:
Commands:
analyze interpret a binary file containing raster...
discover find connected label printers
info list available choices (for labels or models)
print Print a label
send send an instruction file to the printer
brother_ql_create --help
There are some global options available such as --model and --printer.
They can also be provided by environment variables (`BROTHER_QL_MODEL` and `BROTHER_QL_PRINTER`).
giving:
The global options are followed by a command such as `info` or `print`.
The most important command is the `print` command and here is its CLI signature:
usage: brother_ql_create [-h] [--model MODEL] [--label-size LABEL_SIZE]
[--rotate {0,90,180,270}] [--threshold THRESHOLD]
[--dither] [--compress] [--red] [--600dpi] [--no-cut]
[--loglevel LOGLEVEL]
image [outfile]
Usage: brother_ql print [OPTIONS] IMAGE [IMAGE] ...
positional arguments:
image The image file to create a label from.
outfile The file to write the instructions to. Defaults to
stdout.
Print a label of the provided IMAGE.
optional arguments:
-h, --help show this help message and exit
--model MODEL, -m MODEL
The printer model to use. Check available ones with
`brother_ql_info list-models`.
--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.
--dither, -d Enable dithering when converting the image to b/w. If
set, --threshold is meaningless.
--compress, -c Enable compression (if available with the model).
Takes more time but results in smaller file size.
--red Create a label to be printed on black/red/white tape
(only with QL-8xx series on DK-22251 labels). You must
use this option when printing on black/red tape, even
when not printing red.
--600dpi Print with 600x300 dpi available on some models.
Provide your image as 600x600 dpi; perpendicular to
the feeding the image will be resized to 300dpi.
--no-cut Don't cut the tape after printing the label.
--loglevel LOGLEVEL Set to DEBUG for verbose debugging output to stderr.
Options:
-l, --label [12|29|38|50|54|62|102|17x54|17x87|23x23|29x42|29x90|39x90|39x48|52x29|62x29|62x100|102x51|102x152|d12|d24|d58]
The label (size, type - die-cut or endless).
Run `brother_ql info list-labels` for a full
list including ideal pixel dimensions.
-r, --rotate [auto|0|90|180|270]
Rotate the image (counterclock-wise) by this
amount of degrees.
-t, --threshold FLOAT The threshold value (in percent) to
discriminate between black and white pixels.
-d, --dither Enable dithering when converting the image
to b/w. If set, --threshold is meaningless.
-c, --compress Enable compression (if available with the
model). Label creation can take slightly
longer but the resulting instruction size is
normally considerably smaller.
--red Create a label to be printed on
black/red/white tape (only with QL-8xx
series on DK-22251 labels). You must use
this option when printing on black/red tape,
even when not printing red.
--600dpi Print with 600x300 dpi available on some
models. Provide your image as 600x600 dpi;
perpendicular to the feeding the image will
be resized to 300dpi.
--lq Print with low quality (faster). Default is
high quality.
--no-cut / --cut Don't cut the tape after printing the label.
--help Show this message and exit.
The image argument should be a PNG/GIF/JPEG image file.
Here is the output of `brother_ql_info list-label-sizes` listing the available options for `--label-size`:
So, printing an image file onto 62mm endless tape on a QL-710W label printer can be as easy as:
Supported label sizes:
Name Printable px Description
12 106 (12 mm endless)
29 306 (29 mm endless)
38 413 (38 mm endless)
50 554 (50 mm endless)
54 590 (54 mm endless)
62 696 (62 mm endless)
102 1164 (102 mm endless)
17x54 165 x 566 (17 x 54 mm^2)
17x87 165 x 956 (17 x 87 mm^2)
23x23 202 x 202 (23 x 23 mm^2)
29x42 306 x 425 (29 x 42 mm^2)
29x90 306 x 991 (29 x 90 mm^2)
39x90 413 x 991 (38 x 90 mm^2)
39x48 425 x 495 (39 x 48 mm^2)
52x29 578 x 271 (52 x 29 mm^2)
62x29 696 x 271 (62 x 29 mm^2)
62x100 696 x 1109 (62 x 100 mm^2)
102x51 1164 x 526 (102 x 51 mm^2)
102x152 1164 x 1660 (102 x 152 mm^2)
d12 94 x 94 (12 mm diameter, round)
d24 236 x 236 (24 mm diameter, round)
d58 618 x 618 (58 mm diameter, round)
export BROTHER_QL_PRINTER=tcp://192.168.1.21
export BROTHER_QL_MODEL=QL-710W
brother_ql print -l 62 my_image.png
**Pro Tip™**:
For the best results, use image files with the matching pixel dimensions. Die-cut labels have to be in the exact pixel dimensions stated above. For endless label rolls, you can provide image files with a pixel width as stated above. If you provide a file with different dimensions when creating an endless label file, it will be scaled to fit the width.
### Legacy command line tools
### Print
Once you have a Brother QL instruction file, you can send it to the printer like this:
cat my_label.bin > /dev/usb/lp1
Be sure to have permission to write to the device (usually adding yourself to the *lp* group is sufficient.
Or via network (if you have a LAN/WLAN enabled Brother QL):
nc 192.168.0.23 9100 < my_label.bin
You can also use the tool `brother_ql_print` (Py3 only) to send the instructions to your printer:
brother_ql_print 720x151_monochrome.bin /dev/usb/lp0
# or
brother_ql_print --backend network 720x151_monochrome.bin tcp://192.168.0.23:9100
# or (requires PyUSB: `pip install pyusb`)
brother_ql_print 720x151_monochrome.bin usb://0x04f9:0x2015
# or if you have multiple ones connected:
brother_ql_print 720x151_monochrome.bin usb://0x04f9:0x2015/000M6Z401370
# where 000M6Z401370 is the serial number (see lsusb output).
If your printer has problems printing the instructions file, it may blink its LED (green or red) depending on the model. This can have many reasons, eg.:
* The selected label doesn't match (make sure `--red` has been passed to `brother_ql_create` if you're using black/red labels).
* End of paper.
* Unsupported opcode (wrong `--model` when using `brother_ql_create`?)
## Debugging
More info on how to debug difficult situations is to be found in the [DEBUG doc](https://github.com/pklaus/brother_ql/blob/master/DEBUG.md).
For a long time, this project provided multiple command line tools, such as `brother_ql_create`, `brother_ql_print`, `brother_ql_analyze`, and more.
A documentation of their usage can be found in the [LEGACY](https://github.com/pklaus/brother_ql/blob/master/LEGACY.md).
## Links

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#!/usr/bin/env python
# Python standard library
import logging
# external dependencies
import click
# imports from this very package
from brother_ql.devicedependent import models, label_sizes, label_type_specs, DIE_CUT_LABEL, ENDLESS_LABEL, ROUND_DIE_CUT_LABEL
from brother_ql.backends import available_backends, backend_factory
logger = logging.getLogger('brother_ql')
printer_help = "The identifier for the printer. This could be a string like tcp://192.168.1.21:9100 for a networked printer or usb://0x04f9:0x2015/000M6Z401370 for a printer connected via USB."
@click.group()
@click.option('-b', '--backend', type=click.Choice(available_backends), envvar='BROTHER_QL_BACKEND')
@click.option('-m', '--model', type=click.Choice(models), envvar='BROTHER_QL_MODEL')
@click.option('-p', '--printer', metavar='PRINTER_IDENTIFIER', envvar='BROTHER_QL_PRINTER', help=printer_help)
@click.option('--debug', is_flag=True)
@click.pass_context
def cli(ctx, *args, **kwargs):
""" Command line interface for the brother_ql Python package. """
backend = kwargs.get('backend', None)
model = kwargs.get('model', None)
printer = kwargs.get('printer', None)
debug = kwargs.get('debug')
# Store the general CLI options in the context meta dictionary.
# The name corresponds to the second half of the respective envvar:
ctx.meta['MODEL'] = model
ctx.meta['BACKEND'] = backend
ctx.meta['PRINTER'] = printer
logging.basicConfig(level='DEBUG' if debug else 'INFO')
@cli.command()
@click.pass_context
def discover(ctx):
""" find connected label printers """
backend = ctx.meta.get('BACKEND', 'pyusb')
discover_and_list_available_devices(backend)
def discover_and_list_available_devices(backend):
from brother_ql.backends.helpers import discover
available_devices = discover(backend_identifier=backend)
from brother_ql.output_helpers import log_discovered_devices, textual_description_discovered_devices
log_discovered_devices(available_devices)
print(textual_description_discovered_devices(available_devices))
@cli.command()
@click.argument('info', click.Choice(('labels', 'models')))
@click.pass_context
def info(ctx, *args, **kwargs):
""" list available choices (for labels or models) """
if kwargs['info'] == 'models':
"""List the models (choices for --model)
List the models that can be used with this software.
Those are the choices avaiable for the --model option.
"""
print('Supported models:')
for model in models: print(" " + model)
elif kwargs['info'] == 'labels':
"""
List labels (types and sizes).
This command lists all labels (label types and label sizes)
that can be used with this software. """
from brother_ql.output_helpers import textual_label_description
print(textual_label_description(label_sizes))
@cli.command('print', short_help='Print a label')
@click.argument('images', nargs=-1, metavar='IMAGE [IMAGE] ...')
@click.option('-l', '--label', type=click.Choice(label_sizes), envvar='BROTHER_QL_LABEL', help='The label (size, type - die-cut or endless). Run `brother_ql info list-labels` for a full list including ideal pixel dimensions.')
@click.option('-r', '--rotate', type=click.Choice(('auto', '0', '90', '180', '270')), default='auto', help='Rotate the image (counterclock-wise) by this amount of degrees.')
@click.option('-t', '--threshold', type=float, default=70.0, help='The threshold value (in percent) to discriminate between black and white pixels.')
@click.option('-d', '--dither', is_flag=True, help='Enable dithering when converting the image to b/w. If set, --threshold is meaningless.')
@click.option('-c', '--compress', is_flag=True, help='Enable compression (if available with the model). Label creation can take slightly longer but the resulting instruction size is normally considerably smaller.')
@click.option('--red', is_flag=True, help='Create a label to be printed on black/red/white tape (only with QL-8xx series on DK-22251 labels). You must use this option when printing on black/red tape, even when not printing red.')
@click.option('--600dpi', 'dpi_600', is_flag=True, help='Print with 600x300 dpi available on some models. Provide your image as 600x600 dpi; perpendicular to the feeding the image will be resized to 300dpi.')
@click.option('--lq', is_flag=True, help='Print with low quality (faster). Default is high quality.')
@click.option('--no-cut/--cut', is_flag=True, help="Don't cut the tape after printing the label.")
@click.pass_context
def print_cmd(ctx, *args, **kwargs):
""" Print a label of the provided IMAGE. """
backend = ctx.meta.get('BACKEND', 'pyusb')
model = ctx.meta.get('MODEL')
printer = ctx.meta.get('PRINTER')
from brother_ql.conversion import convert
from brother_ql.backends.helpers import send
from brother_ql.raster import BrotherQLRaster
qlr = BrotherQLRaster(model)
qlr.exception_on_warning = True
instructions = convert(qlr=qlr, **kwargs)
send(instructions=instructions, printer_identifier=printer, backend_identifier=backend, blocking=True)
@cli.command(name='analyze', help='interpret a binary file containing raster instructions for the Brother QL-Series printers')
@click.argument('instructions', type=click.File('rb'))
@click.option('-f', '--filename-format', help="Filename format string. Default is: label{counter:04d}.png.")
@click.pass_context
def analyze_cmd(ctx, *args, **kwargs):
from brother_ql.reader import BrotherQLReader
br = BrotherQLReader(kwargs.get('instructions'))
if kwargs.get('filename_format'): br.filename_fmt = kwargs.get('filename_format')
br.analyse()
@cli.command(name='send', short_help='send an instruction file to the printer')
@click.argument('instructions', type=click.File('rb'))
@click.pass_context
def send_cmd(ctx, *args, **kwargs):
from brother_ql.backends.helpers import send
send(instructions=kwargs['instructions'].read(), printer_identifier=ctx.meta.get('PRINTER'), backend_identifier=ctx.meta.get('BACKEND'), blocking=True)
if __name__ == '__main__':
cli()

2
setup.py
View File

@@ -26,6 +26,7 @@ setup(name='brother_ql',
'brother_ql.backends'],
entry_points = {
'console_scripts': [
'brother_ql = brother_ql.cli:cli',
'brother_ql_analyse = brother_ql.brother_ql_analyse:main',
'brother_ql_create = brother_ql.brother_ql_create:main',
'brother_ql_print = brother_ql.brother_ql_print:main',
@@ -37,6 +38,7 @@ setup(name='brother_ql',
zip_safe = True,
platforms = 'any',
install_requires = [
"click",
"future",
"packbits",
"pillow>=3.3.0",