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#!/usr/bin/env python
#
# Copyright 2008, 2009 Hannes Hochreiner
#
# 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 3 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, see http://www.gnu.org/licenses/.
#
"""Install jessyInk scripts"""
import inkex
from inkex import Script
from inkex.utils import NSS
from inkex.localization import inkex_gettext as _
NSS[u"jessyink"] = u"https://launchpad.net/jessyink"
class JessyInkMixin(object):
"""Common jessyInk items"""
def is_installed(self):
"""Check jessyInk is installed correctly"""
scripts = self.svg.getElement("//svg:script[@jessyink:version='1.5.5']")
if scripts is None:
raise inkex.AbortExtension(_(
"The JessyInk script is not installed in this SVG file or has a "
"different version than the JessyInk extensions. Please select "
"\"install/update...\" from the \"JessyInk\" sub-menu of the \"Extensions\" "
"menu to install or update the JessyInk script.\n\n"))
def attr_remove(self, prop, is_removed=True):
"""Remove a property if it exists in the svg"""
if is_removed:
for node in self.svg.xpath("//*[@jessyink:{}]".format(prop)):
node.set("jessyink:{}".format(prop), None)
for node in self.svg.xpath("//*[@jessyInk_{}]".format(prop)):
node.set("jessyInk_{}".format(prop), None)
def attr_update(self, name):
"""Update a single attr"""
for node in self.svg.xpath("//*[@jessyInk_{}]".format(name)):
node.set("jessyink:{}".format(name), node.get("jessyInk_{}".format(name)))
node.set("jessyInk_{}".format(name), None)
for node in self.svg.xpath("//*[@jessyink:{}]".format(name)):
node.set("jessyink:{}".format(name), node.get("jessyink:{}".format(name)).replace("=", ":"))
@staticmethod
def prop_str_to_list(string):
"""Script string to list of instructions"""
return [prop.strip() for prop in string.split(";") if prop]
@staticmethod
def list_to_prop_str(lst):
"""List of instructions to script string"""
return "; ".join(lst) + ';'
class Install(JessyInkMixin, inkex.EffectExtension):
"""Install jessyInk extension into an SVG"""
def add_arguments(self, pars):
pars.add_argument('--tab', type=str, dest='what')
def effect(self):
# Find and delete old script node
for node in self.svg.xpath("//svg:script[@id='JessyInk']"):
node.getparent().remove(node)
# Create new script node
script_elem = Script()
with open(self.get_resource("jessyInk.js")) as fhl:
script_elem.text = fhl.read()
script_elem.set("id", "JessyInk")
script_elem.set("jessyink:version", '1.5.5')
self.svg.append(script_elem)
# Remove "jessyInkInit()" in the "onload" attribute, if present.
prop_list = [prop.strip() for prop in self.svg.get("onload", '').split(';')]
if "jessyInkInit()" in prop_list:
prop_list.remove("jessyInkInit()")
self.svg.set("onload", "; ".join(prop_list) or None)
# Update jessyInk attributes to new formats
for attr in ('effectIn', 'effectOut', 'masterSlide',
'transitionIn', 'transitionOut', 'autoText'):
self.attr_update(attr)
# Create effect instance
if __name__ == '__main__':
Install().run()
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