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#!/usr/bin/env python
# coding=utf-8
#
# Copyright (C) 2009 Karlisson Bezerra, contato@nerdson.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.
#
import inkex
from inkex import (
TextElement, FlowRoot, FlowPara, Tspan, TextPath, Rectangle
)
class TextSplit(inkex.EffectExtension):
"""Split text up."""
def add_arguments(self, pars):
pars.add_argument("--tab", help="The selected UI-tab when OK was pressed")
pars.add_argument("-s", "--splittype", default="word", help="type of split")
pars.add_argument("-p", "--preserve", type=inkex.Boolean, default=True,\
help="Preserve original")
def split_lines(self, node):
"""Returns a list of lines"""
lines = []
count = 1
for elem in node:
if isinstance(elem, TextPath):
inkex.errormsg("Text on path isn't supported. First remove text from path.")
break
elif not isinstance(elem, (FlowPara, Tspan)):
continue
text = TextElement(**node.attrib)
# handling flowed text nodes
if isinstance(node, FlowRoot):
fontsize = node.style.get("font-size", "12px")
fs = self.svg.unittouu(fontsize)
# selects the flowRegion's child (svg:rect) to get @X and @Y
flowref = node.findone('svg:flowRegion')[0]
if isinstance(flowref, Rectangle):
text.set("x", flowref.get("x"))
text.set("y", str(float(flowref.get("y")) + fs * count))
count += 1
else:
inkex.debug("This type of text element isn't supported. First unflow text.")
break
# now let's convert flowPara into tspan
tspan = Tspan()
tspan.set("sodipodi:role", "line")
tspan.text = elem.text
text.append(tspan)
else:
from copy import copy
x = elem.get("x") or node.get("x")
y = elem.get("y") or node.get("y")
text.set("x", x)
text.set("y", y)
text.append(copy(elem))
lines.append(text)
return lines
def split_words(self, node):
"""Returns a list of words"""
words = []
# Function to recursively extract text
def plain_str(elem):
words = []
if elem.text:
words.append(elem.text)
for n in elem:
words.extend(plain_str(n))
if n.tail:
words.append(n.tail)
return words
# if text has more than one line, iterates through elements
lines = self.split_lines(node)
if not lines:
return words
for line in lines:
# gets the position of text node
x = float(line.get("x"))
y = line.get("y")
# gets the font size. if element doesn't have a style attribute, it assumes font-size = 12px
fontsize = line.style.get("font-size", "12px")
fs = self.svg.unittouu(fontsize)
# extract and returns a list of words
words_list = "".join(plain_str(line)).split()
prev_len = 0
# creates new text nodes for each string in words_list
for word in words_list:
tspan = Tspan()
tspan.text = word
text = TextElement(**line.attrib)
tspan.set('sodipodi:role', "line")
# positioning new text elements
x = x + prev_len * fs
prev_len = len(word)
text.set("x", str(x))
text.set("y", str(y))
text.append(tspan)
words.append(text)
return words
def split_letters(self, node):
"""Returns a list of letters"""
letters = []
words = self.split_words(node)
if not words:
return letters
for word in words:
x = float(word.get("x"))
y = word.get("y")
# gets the font size. If element doesn't have a style attribute, it assumes font-size = 12px
fontsize = word.style.get("font-size", "12px")
fs = self.svg.unittouu(fontsize)
# for each letter in element string
for letter in word[0].text:
tspan = Tspan()
tspan.text = letter
text = TextElement(**node.attrib)
text.set("x", str(x))
text.set("y", str(y))
x += fs
text.append(tspan)
letters.append(text)
return letters
def effect(self):
"""Applies the effect"""
split_type = self.options.splittype
preserve = self.options.preserve
# checks if the selected elements are text nodes
for elem in self.svg.selection.get(TextElement, FlowRoot).values():
if split_type == "line":
nodes = self.split_lines(elem)
elif split_type == "word":
nodes = self.split_words(elem)
elif split_type == "letter":
nodes = self.split_letters(elem)
for child in nodes:
elem.getparent().append(child)
# preserve original element
if not preserve and nodes:
parent = elem.getparent()
parent.remove(elem)
if __name__ == '__main__':
TextSplit().run()
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