diff options
Diffstat (limited to 'bruder.py')
| -rw-r--r-- | bruder.py | 212 |
1 files changed, 154 insertions, 58 deletions
@@ -2,6 +2,7 @@ import tempfile import shutil +import webbrowser import re import base64 import copy @@ -57,7 +58,7 @@ def run_command(binary, *args, candidates=[], **kwargs): candidates = [binary] # if envvar is set, try that first. - if (env_var := os.environ.get(binary.upper())): + if (env_var := os.environ.get(Path(binary).name.replace('-', '_').upper())): candidates = [str(Path(env_var).expanduser()), *candidates] for cand in candidates: @@ -70,57 +71,32 @@ def run_command(binary, *args, candidates=[], **kwargs): raise SystemError(f'{binary} executable not found') -@click.group() -def cli(): - pass - -@cli.command() -@click.option('--num-rows', type=int, default=5, help='Number of tapes') -@click.option('--tape-width', type=float, default=24, help='Width of tape') -@click.option('--tape-border', type=float, default=3, help='Width of empty border at the edges of the tape in mm') -@click.option('--tape-spacing', type=float, default=2, help='Space between tapes') -@click.option('--tape-length', type=float, default=250, help='Length of tape segments') -@click.option('--magic-color', type=str, default='#cc0000', help='SVG color of tape') -@click.argument('output_svg', type=click.File(mode='w'), default='-') -def template(num_rows, tape_width, tape_border, tape_spacing, tape_length, magic_color, output_svg): - pitch = tape_width + tape_spacing - tags = [Tag('g', inkscape__layer='Layer 1', inkscape__groupmode='layer', id='layer1', children=[ - Tag('g', id='g1', children=[ - Tag('g', id=f'tape{i}', children=[ - Tag('path', id=f'tape{i}_outline', fill='none', stroke='black', opacity='0.3', stroke_width=f'{tape_width}px', - d=f'M 0 {tape_width/2 + i*pitch} {tape_length} {tape_width/2 + i*pitch}'), - Tag('path', id=f'tape{i}_printable_area', fill='none', stroke=magic_color, stroke_width=f'{tape_width-2*tape_border}px', - d=f'M 0 {tape_width/2 + i*pitch} {tape_length} {tape_width/2 + i*pitch}'), - ]) - for i in range(num_rows) - ]) - ])] - - bounds = (0, 0), (tape_length, num_rows*tape_width + (num_rows-1)*tape_spacing) - svg = setup_svg(tags, bounds, margin=tape_width, inkscape=True) - output_svg.write(str(svg)) - -@cli.command() -@click.option('--magic-color', type=str, default='#cc0000', help='SVG color of tape') -@click.option('--dpi', type=float, default=180, help='Printer bitmap resolution in DPI') -@click.option('--pixel-height', type=int, default=127, help='Printer tape vertical pixel height') -@click.argument('input_svg', type=click.File(mode='r'), default='-') -def dither(input_svg, magic_color, dpi, pixel_height): - tmpdir = Path('/tmp/foo') # FIXME debug +def simplify_and_open_svg(data): with tempfile.NamedTemporaryFile('w', suffix='.svg') as tmp_in_svg,\ tempfile.NamedTemporaryFile('r', suffix='.svg') as tmp_out_svg: - tmp_in_svg.write(input_svg.read()) + tmp_in_svg.write(data) tmp_in_svg.flush() try: run_cargo_command('usvg', *shlex.split(os.environ.get('USVG_OPTIONS', '')), tmp_in_svg.name, tmp_out_svg.name) except SystemError: - raise ClickException('Cannot find usvg. Please install usvg using cargo, or pass the full path to the usvg binary in the USVG environment variable.') + raise click.ClickException('Cannot find usvg. Please install usvg using cargo, or pass the full path to the usvg binary in the USVG environment variable.') + except subprocess.CalledProcessError as e: + raise click.ClickException(f'usvg exited with return code {e.returncode}.') + + return BeautifulSoup(tmp_out_svg.read(), 'xml') + - soup = BeautifulSoup(tmp_out_svg.read(), 'xml') +def print_tape(png_file): + try: + run_command('ptouch-print', '--image', png_file) + except SystemError: + raise click.ClickException('Cannot find ptouch-print. Please install ptouch-print from the upstream repo at https://git.familie-radermacher.ch/linux/ptouch-print.git . You can pass the full path to the ptouch-print binary in the PTOUCH_PRINT environment variable if it\'s not in $PATH.') + except subprocess.CalledProcessError as e: + raise click.ClickException(f'ptouch-print exited with return code {e.returncode}.') - preview_images = [] - tape_num = 1 + +def do_dither(soup, magic_color, dpi, pixel_height): for i, path in enumerate(list(soup.find_all('path'))): if path.get('stroke').lower() != magic_color: continue @@ -164,7 +140,7 @@ def dither(input_svg, magic_color, dpi, pixel_height): out_soup = copy.copy(soup) - print(f'found path {path_id} of length {path_len:2f} and angle {math.degrees(path_angle):.1f} deg with physical stroke width {stroke_w:.2f} from ({x1:.2f}, {y1:.2f}) to ({x2:.2f}, {y2:.2f})', file=sys.stderr) + #print(f'found path {path_id} of length {path_len:2f} and angle {math.degrees(path_angle):.1f} deg with physical stroke width {stroke_w:.2f} from ({x1:.2f}, {y1:.2f}) to ({x2:.2f}, {y2:.2f})', file=sys.stderr) #out_soup.find('svg').append(out_soup.new_tag('path', fill='none', stroke='blue', stroke_width=f'24px', # d=f'M {x1} {y1} L {x2} {y2}')) xf = Transform.translate(0, stroke_w/2) * Transform.rotate(-path_angle) * Transform.translate(-x1, -y1) @@ -184,28 +160,148 @@ def dither(input_svg, magic_color, dpi, pixel_height): tmp_svg.write(out_soup.prettify()) tmp_svg.flush() run_cargo_command('resvg', tmp_svg.name, tmp_png.name, width=round(Inch(path_len, 'mm')*dpi), height=pixel_height) - shutil.copy(tmp_png.name, f'/tmp/debug_{i}.png') run_command('didder', 'edm', '--serpentine', 'FloydSteinberg', palette='black white', i=tmp_png.name, o=tmp_dither.name) - shutil.copy(tmp_dither.name, f'/tmp/dither_{tape_num}.png') - preview_images.append(Tag('image', width=path_len, height=stroke_w, preserveAspectRatio='none', - id=f'preview_image_{tape_num}', - x=0, y=0, - transform=f'translate({x1} {y1}) rotate({math.degrees(path_angle)}) translate(0 {-stroke_w/2})', - xlink__href=f'data:image/png;base64,{base64.b64encode(tmp_dither.read()).decode()}')) + yield (x1, y1, path_angle, stroke_w, path_len), tmp_dither.read() - print('wrote', f'/tmp/dither_{tape_num}.png') - tape_num += 1 - tags = [Tag('g', inkscape__layer='Layer 1', inkscape__groupmode='layer', id='layer1', children=[ - Tag('g', id='g1', children=preview_images) - ])] +def make_preview(input_svg, out_file, *dither_args, assembly_labels=False, **dither_kwargs): + imgs = [] + labels = [] + soup = simplify_and_open_svg(input_svg) + + for tape_num, ((x1, y1, path_angle, stroke_w, path_len), img) in enumerate(do_dither(soup, *dither_args, **dither_kwargs), start=1): + xf = f'translate({x1} {y1}) rotate({math.degrees(path_angle)}) translate(0 {-stroke_w/2})' + imgs.append(Tag('image', width=path_len, height=stroke_w, preserveAspectRatio='none', + id=f'preview_image_{tape_num}', + x=0, y=0, + transform=xf, + xlink__href=f'data:image/png;base64,{base64.b64encode(img).decode()}')) + labels.append(Tag('path', fill='none', stroke_width='0.2px', stroke='red', transform=xf, + d=f'M 0 0 h {path_len} v {stroke_w} h {-path_len} Z')) + labels.append(Tag('text', fill='red', stroke='none', font_size=f'{stroke_w*0.8}px', transform=xf, + x='2px', y=f'{stroke_w*0.9}px', children=[f'{tape_num}'])) + + layer = Tag('g', inkscape__layer='Preview', inkscape__groupmode='layer', id='layer_preview', children=[ + Tag('g', id='preview_images', children=imgs), + ]) + + if assembly_labels: + layer.children.append(Tag('g', id='assembly_instructions', children=labels)) vbx, vby, vbw, vbh = map(float, soup.find('svg')['viewBox'].split()) bounds = (vbx, vby), (vbx+vbw, vby+vbh) - svg = setup_svg(tags, bounds, inkscape=True) - Path('/tmp/preview.svg').write_text(str(svg)) + svg = setup_svg([layer], bounds, inkscape=True) + + if out_file is not None: + out_file.write(str(svg)) + else: + with tempfile.NamedTemporaryFile(suffix='.svg', mode='w', delete=False) as f: + f.write(str(svg)) + f.flush() + webbrowser.open_new_tab(f'file://{f.name}') + + +@click.group() +def cli(): + pass + +@cli.command() +@click.option('--num-rows', type=int, default=5, help='Number of tapes') +@click.option('--tape-width', type=float, default=24, help='Width of tape') +@click.option('--tape-border', type=float, default=3, help='Width of empty border at the edges of the tape in mm') +@click.option('--tape-spacing', type=float, default=2, help='Space between tapes') +@click.option('--tape-length', type=float, default=250, help='Length of tape segments') +@click.option('--magic-color', type=str, default='#cc0000', help='SVG color of tape') +@click.argument('output_svg', type=click.File(mode='w'), default='-') +def template(num_rows, tape_width, tape_border, tape_spacing, tape_length, magic_color, output_svg): + pitch = tape_width + tape_spacing + tags = [Tag('g', inkscape__layer='Layer 1', inkscape__groupmode='layer', id='layer1', children=[ + Tag('g', id='g1', children=[ + Tag('g', id=f'tape{i}', children=[ + Tag('path', id=f'tape{i}_outline', fill='none', stroke='black', opacity='0.3', stroke_width=f'{tape_width}px', + d=f'M 0 {tape_width/2 + i*pitch} {tape_length} {tape_width/2 + i*pitch}'), + Tag('path', id=f'tape{i}_printable_area', fill='none', stroke=magic_color, stroke_width=f'{tape_width-2*tape_border}px', + d=f'M 0 {tape_width/2 + i*pitch} {tape_length} {tape_width/2 + i*pitch}'), + ]) + for i in range(num_rows) + ]) + ])] + + bounds = (0, 0), (tape_length, num_rows*tape_width + (num_rows-1)*tape_spacing) + svg = setup_svg(tags, bounds, margin=tape_width, inkscape=True) + output_svg.write(str(svg)) + + +@cli.command('print') +@click.option('--magic-color', type=str, default='#cc0000', help='SVG color of tape') +@click.option('--dpi', type=float, default=180, help='Printer bitmap resolution in DPI') +@click.option('--pixel-height', type=int, default=127, help='Printer tape vertical pixel height') +@click.option('--confirm/--no-confirm', default=True, help='Ask for confirmation before printing each tape') +@click.option('--tape', type=str, default='-', help='The index numbers of which tapes to print. Comma-separate list, each entry is either a single number or a "3-5" style range where both ends are included.') +@click.argument('input_svg', type=click.File(mode='r'), default='-') +def cli_print(input_svg, tape, magic_color, dpi, pixel_height, confirm): + with tempfile.TemporaryDirectory() as tmpdir: + out = {} + + soup = simplify_and_open_svg(input_svg.read()) + for i, (_tape_pos, img) in enumerate(do_dither(soup, magic_color=magic_color, dpi=dpi, pixel_height=pixel_height), start=1): + f = Path(tmpdir) / f'dither_tape_{i}.png' + f.write_bytes(img) + out[i] = f + + selected = set() + for entry in tape.split(','): + start, sep, stop = entry.partition('-') + if not sep: + selected.add(int(start)) + else: + start = int(start) if start else min(out) + stop = int(stop) if stop else max(out) + selected |= set(range(start, stop+1)) + + for tape in sorted(selected): + if confirm: + if not click.confirm(f'Do you want to continue and print tape {tape}?'): + break + print_tape(out[tape]) + + +@cli.command() +@click.option('--magic-color', type=str, default='#cc0000', help='SVG color of tape') +@click.option('--dpi', type=float, default=180, help='Printer bitmap resolution in DPI') +@click.option('--pixel-height', type=int, default=127, help='Printer tape vertical pixel height') +@click.argument('input_svg', type=click.File(mode='r'), default='-') +@click.argument('output_svg', type=click.File(mode='w'), required=False) +def preview(input_svg, output_svg, magic_color, dpi, pixel_height): + make_preview(input_svg.read(), output_svg, magic_color=magic_color, dpi=dpi, pixel_height=pixel_height, assembly_labels=False) + + +@cli.command() +@click.option('--magic-color', type=str, default='#cc0000', help='SVG color of tape') +@click.option('--dpi', type=float, default=180, help='Printer bitmap resolution in DPI') +@click.option('--pixel-height', type=int, default=127, help='Printer tape vertical pixel height') +@click.argument('input_svg', type=click.File(mode='r'), default='-') +@click.argument('output_svg', type=click.File(mode='w'), required=False) +def assembly(input_svg, output_svg, magic_color, dpi, pixel_height): + make_preview(input_svg.read(), output_svg, magic_color=magic_color, dpi=dpi, pixel_height=pixel_height, assembly_labels=True) + + +@cli.command() +@click.option('--magic-color', type=str, default='#cc0000', help='SVG color of tape') +@click.option('--dpi', type=float, default=180, help='Printer bitmap resolution in DPI') +@click.option('--pixel-height', type=int, default=127, help='Printer tape vertical pixel height') +@click.argument('input_svg', type=click.File(mode='r'), default='-') +@click.argument('output_dir', type=click.Path(file_okay=False, dir_okay=True, path_type=Path)) +def dither(input_svg, output_dir, magic_color, dpi, pixel_height): + output_dir.mkdir(exist_ok=True) + soup = simplify_and_open_svg(input_svg.read()) + for i, (_tape_pos, img) in enumerate(do_dither(soup, magic_color=magic_color, dpi=dpi, pixel_height=pixel_height), start=1): + outfile = output_dir / f'dither_tape_{i}.png' + outfile.write_bytes(img) + print(f'Wrote {outfile}') if __name__ == '__main__': cli() + |