90 lines
2.9 KiB
Python
90 lines
2.9 KiB
Python
# Copyright (c) 2018 Manfred Moitzi
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# License: MIT License
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# based on work of:
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# Copyright (c) 2018 Antonio Ospite <ao2@ao2.it>
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from svgwrite.data.types import SVGAttribute
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INKSCAPE_NAMESPACE = 'http://www.inkscape.org/namespaces/inkscape'
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SODIPODI_NAMESPACE = 'http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd'
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INKSCAPE_ATTRIBUTES = {
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'xmlns:inkscape': SVGAttribute('xmlns:inkscape',
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anim=False,
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types=[],
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const=frozenset([INKSCAPE_NAMESPACE])),
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'xmlns:sodipodi': SVGAttribute('xmlns:sodipodi',
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anim=False,
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types=[],
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const=frozenset([SODIPODI_NAMESPACE])),
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'inkscape:groupmode': SVGAttribute('inkscape:groupmode',
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anim=False,
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types=[],
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const=frozenset(['layer'])),
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'inkscape:label': SVGAttribute('inkscape:label',
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anim=False,
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types=frozenset(['string']),
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const=[]),
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'sodipodi:insensitive': SVGAttribute('sodipodi:insensitive',
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anim=False,
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types=[],
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const=frozenset(['true', 'false', '0', '1']))
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}
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def _setup_validator(validator):
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# setup already done?
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if 'xmlns:inkscape' in validator.attributes:
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return
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validator.attributes.update(INKSCAPE_ATTRIBUTES)
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elements = validator.elements
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# extend SVG attributes
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elements['svg'].valid_attributes = \
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{
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'xmlns:inkscape',
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'xmlns:sodipodi',
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} | elements['svg'].valid_attributes
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# extend group attributes
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elements['g'].valid_attributes = \
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{
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'inkscape:groupmode',
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'inkscape:label',
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'sodipodi:insensitive',
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} | elements['g'].valid_attributes
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GROUP_MODE = 'inkscape:groupmode'
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LABEL = 'inkscape:label'
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INSENSITIVE = 'sodipodi:insensitive'
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class Inkscape(object):
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"""
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Extension to support SOME Inkscape features.
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"""
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def __init__(self, drawing):
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self.svg = drawing
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_setup_validator(drawing.validator)
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drawing['xmlns:inkscape'] = INKSCAPE_NAMESPACE
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drawing['xmlns:sodipodi'] = SODIPODI_NAMESPACE
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def layer(self, label=None, locked=False, **kwargs):
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"""
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Create new Inkscape layer.
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Args:
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label: layer name as string
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locked: when set to True, make objects at this layer unselectable
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"""
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new_layer = self.svg.g(**kwargs)
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new_layer[GROUP_MODE] = 'layer'
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if label is not None:
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new_layer[LABEL] = label
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if locked:
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new_layer[INSENSITIVE] = 1
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return new_layer
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