diff options
Diffstat (limited to 'bruder.py')
| -rw-r--r-- | bruder.py | 82 |
1 files changed, 62 insertions, 20 deletions
@@ -1,7 +1,9 @@ #!/usr/bin/env python3 import tempfile +import shutil import re +import base64 import copy import subprocess import shlex @@ -13,22 +15,10 @@ from pathlib import Path import click from bs4 import BeautifulSoup -from svg_util import setup_svg, Tag, parse_path_d, Transform +from svg_util import * def run_cargo_command(binary, *args, **kwargs): - cmd_args = [] - for key, value in kwargs.items(): - if value is not None: - if value is False: - continue - - cmd_args.append(f'--{key.replace("_", "-")}') - - if value is not True: - cmd_args.append(value) - cmd_args.extend(map(str, args)) - # By default, try a number of options: candidates = [ # somewhere in $PATH @@ -43,9 +33,32 @@ def run_cargo_command(binary, *args, **kwargs): str(Path(sys.executable).parent / f'wasi-{binary}') ] + return run_command(binary, *args, candidates=candidates, **kwargs) + + +def run_command(binary, *args, candidates=[], **kwargs): + cmd_args = [] + for key, value in kwargs.items(): + if value is not None: + if value is False: + continue + + if len(key) > 1: + cmd_args.append(f'--{key.replace("_", "-")}') + else: + cmd_args.append(f'-{key}') + + if value is not True: + cmd_args.append(str(value)) + cmd_args.extend(map(str, args)) + + # By default, try a number of options: + if not candidates: + candidates = [binary] + # if envvar is set, try that first. if (env_var := os.environ.get(binary.upper())): - candidates = [env_var, *candidates] + candidates = [str(Path(env_var).expanduser()), *candidates] for cand in candidates: try: @@ -89,8 +102,10 @@ def template(num_rows, tape_width, tape_border, tape_spacing, tape_length, magic @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): +def dither(input_svg, magic_color, dpi, pixel_height): tmpdir = Path('/tmp/foo') # FIXME debug with tempfile.NamedTemporaryFile('w', suffix='.svg') as tmp_in_svg,\ tempfile.NamedTemporaryFile('r', suffix='.svg') as tmp_out_svg: @@ -104,7 +119,8 @@ def dither(input_svg, magic_color): soup = BeautifulSoup(tmp_out_svg.read(), 'xml') - print(soup.prettify()) + preview_images = [] + tape_num = 1 for i, path in enumerate(list(soup.find_all('path'))): if path.get('stroke').lower() != magic_color: continue @@ -149,20 +165,46 @@ def dither(input_svg, magic_color): 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) - 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}')) + #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) g = out_soup.new_tag('g', id='transform-group', transform=xf.as_svg()) k = list(out_soup.find('svg').contents) for c in k: g.append(c.extract()) out_soup.find('svg').append(g) + out_soup.find('path', id=path['id']).parent.decompose() out_soup.find('svg')['viewBox'] = f'0 0 {path_len} {stroke_w}' out_soup.find('svg')['width'] = f'{path_len}mm' out_soup.find('svg')['height'] = f'{stroke_w}mm' - with open(f'/tmp/baz-{i}.svg', 'w') as f: - f.write(out_soup.prettify()) + with tempfile.NamedTemporaryFile('w', suffix='.svg') as tmp_svg,\ + tempfile.NamedTemporaryFile('rb', suffix='.png') as tmp_png,\ + tempfile.NamedTemporaryFile('rb', suffix='.png') as tmp_dither: + 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()}')) + + 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) + ])] + + 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)) if __name__ == '__main__': |