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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:24:48 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:24:48 +0000 |
commit | cca66b9ec4e494c1d919bff0f71a820d8afab1fa (patch) | |
tree | 146f39ded1c938019e1ed42d30923c2ac9e86789 /share/extensions/inkex/elements/_groups.py | |
parent | Initial commit. (diff) | |
download | inkscape-cca66b9ec4e494c1d919bff0f71a820d8afab1fa.tar.xz inkscape-cca66b9ec4e494c1d919bff0f71a820d8afab1fa.zip |
Adding upstream version 1.2.2.upstream/1.2.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'share/extensions/inkex/elements/_groups.py')
-rw-r--r-- | share/extensions/inkex/elements/_groups.py | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/share/extensions/inkex/elements/_groups.py b/share/extensions/inkex/elements/_groups.py new file mode 100644 index 0000000..c66bfe3 --- /dev/null +++ b/share/extensions/inkex/elements/_groups.py @@ -0,0 +1,126 @@ +# -*- coding: utf-8 -*- +# +# Copyright (c) 2020 Martin Owens <doctormo@gmail.com> +# Sergei Izmailov <sergei.a.izmailov@gmail.com> +# Ryan Jarvis <ryan@shopboxretail.com> +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. +# +# pylint: disable=arguments-differ +""" +Interface for all group based elements such as Groups, Use, Markers etc. +""" + +from lxml import etree # pylint: disable=unused-import + +from ..paths import Path +from ..transforms import Transform + +from ._utils import addNS +from ._base import ShapeElement + +try: + from typing import Optional # pylint: disable=unused-import +except ImportError: + pass + + +class GroupBase(ShapeElement): + """Base Group element""" + + def get_path(self): + ret = Path() + for child in self: + if isinstance(child, ShapeElement): + ret += child.path.transform(child.transform) + return ret + + def shape_box(self, transform=None): + bbox = None + effective_transform = Transform(transform) @ self.transform + for child in self: + if isinstance(child, ShapeElement): + child_bbox = child.bounding_box(transform=effective_transform) + if child_bbox is not None: + bbox += child_bbox + return bbox + + +class Group(GroupBase): + """Any group element (layer or regular group)""" + + tag_name = "g" + + @classmethod + def new(cls, label, *children, **attrs): + attrs["inkscape:label"] = label + return super().new(*children, **attrs) + + def effective_style(self): + """A blend of each child's style mixed together (last child wins)""" + style = self.style + for child in self: + style.update(child.effective_style()) + return style + + @property + def groupmode(self): + """Return the type of group this is""" + return self.get("inkscape:groupmode", "group") + + +class Layer(Group): + """Inkscape extension of svg:g""" + + def _init(self): + self.set("inkscape:groupmode", "layer") + + @classmethod + def is_class_element(cls, elem): + # type: (etree.Element) -> bool + return elem.attrib.get(addNS("inkscape:groupmode"), None) == "layer" + + +class Anchor(GroupBase): + """An anchor or link tag""" + + tag_name = "a" + + @classmethod + def new(cls, href, *children, **attrs): + attrs["xlink:href"] = href + return super().new(*children, **attrs) + + +class ClipPath(GroupBase): + """A path used to clip objects""" + + tag_name = "clipPath" + + +class Marker(GroupBase): + """The <marker> element defines the graphic that is to be used for drawing + arrowheads or polymarkers on a given <path>, <line>, <polyline> or <polygon> + element.""" + + tag_name = "marker" + + +class Mask(GroupBase): + """An alpha mask for compositing an object into the background + + .. versionadded:: 1.2""" + + tag_name = "mask" |