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jessyInk_transitions.py

#!/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/.

# These lines are only needed if you don't put the script directly into
# the installation directory
import sys
# Unix
sys.path.append('/usr/share/inkscape/extensions')
# OS X
sys.path.append('/Applications/Inkscape.app/Contents/Resources/extensions')
# Windows
sys.path.append('C:\Program Files\Inkscape\share\extensions')

# We will use the inkex module with the predefined Effect base class.
import inkex

class JessyInk_Transitions(inkex.Effect):
      def __init__(self):
            # Call the base class constructor.
            inkex.Effect.__init__(self)

            self.OptionParser.add_option('--tab', action = 'store', type = 'string', dest = 'what')
            self.OptionParser.add_option('--layerName', action = 'store', type = 'string', dest = 'layerName', default = '')
            self.OptionParser.add_option('--effectIn', action = 'store', type = 'string', dest = 'effectIn', default = 'default')
            self.OptionParser.add_option('--effectInDuration', action = 'store', type = 'float', dest = 'effectInDuration', default = 0.8)
            self.OptionParser.add_option('--effectOut', action = 'store', type = 'string', dest = 'effectOut', default = 'default')
            self.OptionParser.add_option('--effectOutDuration', action = 'store', type = 'float', dest = 'effectOutDuration', default = 0.8)

            inkex.NSS[u"jessyink"] = u"https://launchpad.net/jessyink"

      def effect(self):
            # Check version.
            scriptNodes = self.document.xpath("//svg:script[@jessyink:version='1.5.1']", namespaces=inkex.NSS)

            if len(scriptNodes) != 1:
                  sys.stderr.write("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 \"Effects\" menu to install or update the JessyInk script.\n\n")

            if self.options.layerName != "":
                  nodes = self.document.xpath("//*[@inkscape:groupmode='layer' and @inkscape:label='" + self.options.layerName + "']", namespaces=inkex.NSS)
                  if len(nodes) == 0:
                        sys.stderr.write("Layer not found.\n")
                  elif len(nodes) > 1:
                        sys.stderr.write("More than one layer with this name found.\n")
                  else:
                        if self.options.effectIn == "default":
                              if nodes[0].get("{" + inkex.NSS["jessyink"] + "}transitionIn"):
                                    del nodes[0].attrib["{" + inkex.NSS["jessyink"] + "}transitionIn"]
                        else:
                              nodes[0].set("{" + inkex.NSS["jessyink"] + "}transitionIn","name:" + self.options.effectIn + ";length:" + str(int(self.options.effectInDuration * 1000)))
                        if self.options.effectOut == "default":
                              if nodes[0].get("{" + inkex.NSS["jessyink"] + "}transitionOut"):
                                    del nodes[0].attrib["{" + inkex.NSS["jessyink"] + "}transitionOut"]
                        else:
                              nodes[0].set("{" + inkex.NSS["jessyink"] + "}transitionOut","name:" + self.options.effectOut + ";length:" + str(int(self.options.effectOutDuration * 1000)))
            else:
                  sys.stderr.write("Please enter a layer name.\n")

# Create effect instance
effect = JessyInk_Transitions()
effect.affect()


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