kopia lustrzana https://github.com/inkstitch/inkstitch
108 wiersze
4.8 KiB
Python
108 wiersze
4.8 KiB
Python
# Authors: see git history
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#
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# Copyright (c) 2010 Authors
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# Licensed under the GNU GPL version 3.0 or later. See the file LICENSE for details.
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from inkex import Boolean, Style
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from lxml import etree
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from ..stitch_plan import stitch_groups_to_stitch_plan
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from ..svg import render_stitch_plan
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from ..svg.tags import (INKSCAPE_GROUPMODE, INKSTITCH_ATTRIBS,
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SODIPODI_INSENSITIVE, SVG_DEFS_TAG, SVG_GROUP_TAG,
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SVG_PATH_TAG)
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from .base import InkstitchExtension
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from .stitch_plan_preview_undo import reset_stitch_plan
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class StitchPlanPreview(InkstitchExtension):
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def __init__(self, *args, **kwargs):
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InkstitchExtension.__init__(self, *args, **kwargs)
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self.arg_parser.add_argument("-s", "--move-to-side", type=Boolean, default=True, dest="move_to_side")
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self.arg_parser.add_argument("-v", "--layer-visibility", type=int, default=0, dest="layer_visibility")
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self.arg_parser.add_argument("-n", "--needle-points", type=Boolean, default=False, dest="needle_points")
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self.arg_parser.add_argument("-i", "--insensitive", type=Boolean, default=False, dest="insensitive")
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self.arg_parser.add_argument("-c", "--visual-commands", type=Boolean, default="symbols", dest="visual_commands")
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def effect(self):
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# delete old stitch plan
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svg = self.document.getroot()
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reset_stitch_plan(svg)
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# create new stitch plan
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if not self.get_elements():
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return
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realistic = False
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visual_commands = self.options.visual_commands
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self.metadata = self.get_inkstitch_metadata()
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collapse_len = self.metadata['collapse_len_mm']
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min_stitch_len = self.metadata['min_stitch_len_mm']
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patches = self.elements_to_stitch_groups(self.elements)
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stitch_plan = stitch_groups_to_stitch_plan(patches, collapse_len=collapse_len, min_stitch_len=min_stitch_len)
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render_stitch_plan(svg, stitch_plan, realistic, visual_commands)
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# apply options
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layer = svg.find(".//*[@id='__inkstitch_stitch_plan__']")
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# update layer visibility 0 = unchanged, 1 = hidden, 2 = lower opacity
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groups = self.document.getroot().findall(SVG_GROUP_TAG)
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if self.options.layer_visibility == 1:
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self.set_invisible_layers_attribute(groups, layer)
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self.hide_all_layers()
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layer.style['display'] = "inline"
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elif self.options.layer_visibility == 2:
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for g in groups:
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style = g.specified_style()
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# check groupmode and exclude stitch_plan layer
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# exclude objects which are not displayed at all or already have opacity < 0.4
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if (g.get(INKSCAPE_GROUPMODE) == "layer" and not g == layer and
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float(style.get('opacity', 1)) > 0.4 and not style.get('display', 'inline') == 'none'):
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g.style['opacity'] = 0.4
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if self.options.insensitive is True:
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layer.set(SODIPODI_INSENSITIVE, True)
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else:
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layer.pop(SODIPODI_INSENSITIVE)
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# translate stitch plan to the right side of the canvas
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if self.options.move_to_side:
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layer.set('transform', 'translate(%s)' % svg.get('viewBox', '0 0 800 0').split(' ')[2])
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else:
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layer.set('transform', None)
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# display needle points
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if self.options.needle_points:
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markers = 'marker-mid:url(#inkstitch-needle-point);marker-start:url(#inkstitch-needle-point);marker-end:url(#inkstitch-needle-point)'
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for element in layer.iterdescendants(SVG_PATH_TAG):
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style = element.style + Style(markers)
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element.set('style', style)
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self.ensure_marker()
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def set_invisible_layers_attribute(self, groups, layer):
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invisible_layers = []
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for g in groups:
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if g.get(INKSCAPE_GROUPMODE) == "layer" and 'display' in g.style and g.style['display'] == 'none':
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invisible_layers.append(g.get_id())
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layer.set(INKSTITCH_ATTRIBS['invisible_layers'], ",".join(invisible_layers))
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def ensure_marker(self):
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xpath = ".//svg:marker[@id='inkstitch-needle-point']"
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point_marker = self.document.getroot().xpath(xpath)
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if not point_marker:
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# get or create def element
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defs = self.document.find(SVG_DEFS_TAG)
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if defs is None:
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defs = etree.SubElement(self.document, SVG_DEFS_TAG)
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# insert marker
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marker = """<marker
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orient="auto"
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id="inkstitch-needle-point">
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<circle
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cx="0" cy="0" r="1.5"
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style="fill:context-stroke;opacity:0.8;" />
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</marker>"""
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defs.append(etree.fromstring(marker))
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