81 lines
3 KiB
Python
Executable file
81 lines
3 KiB
Python
Executable file
#!/usr/bin/env python3
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# coding=utf-8
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#
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# Copyright (C) 2011 Felipe Correa da Silva Sanches
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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from typing import Union
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import inkex
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from inkex.localization import inkex_gettext as _
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class SetupTypographyCanvas(inkex.EffectExtension):
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"""Resizes the canvas and creates typography-relevant guidelines"""
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def add_arguments(self, pars):
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pars.add_argument("-e", "--emsize", type=int, default=1000)
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pars.add_argument("-c", "--caps", type=int, default=700, help="Caps Height")
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pars.add_argument("-x", "--xheight", type=int, default=500)
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pars.add_argument("-a", "--ascender", type=int, default=750)
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pars.add_argument("-d", "--descender", type=int, default=250)
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def create_horizontal_guideline(
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self, name: str, position: Union[int, float]
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) -> inkex.BaseElement:
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"""Create a horizontal guideline with name and position
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Args:
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name (str): the name of the guideline
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position (Union[int, float]): the vertical position of the guideline
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Returns:
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inkex.BaseElement: the created guideline
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"""
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return self.svg.namedview.add_guide(
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self.svg.viewbox_height - position, True, name
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)
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def effect(self):
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# Get all the options
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emsize = self.options.emsize
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ascender = self.options.ascender
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caps = self.options.caps
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xheight = self.options.xheight
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descender = self.options.descender
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# Get access to main SVG document element
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self.svg.set("width", str(emsize))
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self.svg.set("height", str(emsize))
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self.svg.set("viewBox", "0 0 " + str(emsize) + " " + str(emsize))
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baseline = descender
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# Create guidelines
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self.create_horizontal_guideline(_("baseline"), baseline)
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self.create_horizontal_guideline(_("ascender"), baseline + ascender)
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self.create_horizontal_guideline(_("caps"), baseline + caps)
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self.create_horizontal_guideline(_("xheight"), baseline + xheight)
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self.create_horizontal_guideline(_("descender"), baseline - descender)
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namedview = self.svg.namedview
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namedview.set("inkscape:document-units", "px")
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namedview.set("inkscape:cx", str(emsize / 2.0))
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namedview.set("inkscape:cy", str(emsize / 2.0))
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if __name__ == "__main__":
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SetupTypographyCanvas().run()
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