setup_typography_canvas.py revision 107e00c8104649437b9520d0ba298dba659e7cd7
#!/usr/bin/env python
'''
Copyright (C) 2011 Felipe Correa da Silva Sanches
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.
'''
import inkex
import sys
class SetupTypographyCanvas(inkex.Effect):
def __init__(self):
inkex.Effect.__init__(self)
self.OptionParser.add_option("-e", "--emsize",
action="store", type="int",
dest="emsize", default=1000,
help="Em-size")
self.OptionParser.add_option("-a", "--ascender",
action="store", type="int",
dest="ascender", default='750',
help="Ascender")
self.OptionParser.add_option("-c", "--caps",
action="store", type="int",
dest="caps", default='700',
help="Caps Height")
self.OptionParser.add_option("-x", "--xheight",
action="store", type="int",
dest="xheight", default='500',
help="x-height")
self.OptionParser.add_option("-d", "--descender",
action="store", type="int",
dest="descender", default='250',
help="Descender")
def create_horizontal_guideline(self, name, position):
self.create_guideline(name, "0,1", 0, position)
def create_vertical_guideline(self, name, position):
self.create_guideline(name, "1,0", position, 0)
def create_guideline(self, label, orientation, x,y):
namedview = self.svg.find(inkex.addNS('namedview', 'sodipodi'))
guide = inkex.etree.SubElement(namedview, inkex.addNS('guide', 'sodipodi'))
guide.set("orientation", orientation)
guide.set("position", str(x)+","+str(y))
guide.set(inkex.addNS('label', 'inkscape'), label)
def effect(self):
# Get all the options
emsize = self.options.emsize
ascender = self.options.ascender
caps = self.options.caps
xheight = self.options.xheight
descender = self.options.descender
# Get access to main SVG document element
self.svg = self.document.getroot()
self.svg.set("width", str(emsize))
self.svg.set("height", str(emsize))
self.svg.set("viewBox", "0 0 " + str(emsize) + " " + str(emsize) )
baseline = descender
# Create guidelines
self.create_horizontal_guideline("baseline", baseline)
self.create_horizontal_guideline("ascender", baseline+ascender)
self.create_horizontal_guideline("caps", baseline+caps)
self.create_horizontal_guideline("xheight", baseline+xheight)
self.create_horizontal_guideline("descender", baseline-descender)
namedview = self.svg.find(inkex.addNS('namedview', 'sodipodi'))
namedview.set(inkex.addNS('document-units', 'inkscape'), 'px')
namedview.set(inkex.addNS('cx', 'inkscape'), str(emsize/2.0 ))
namedview.set(inkex.addNS('cy', 'inkscape'), str(emsize/2.0 ))
if __name__ == '__main__':
e = SetupTypographyCanvas()
e.affect()