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Diffstat (limited to 'support/pogojig/inkscape/inkex.py')
| -rw-r--r-- | support/pogojig/inkscape/inkex.py | 363 |
1 files changed, 0 insertions, 363 deletions
diff --git a/support/pogojig/inkscape/inkex.py b/support/pogojig/inkscape/inkex.py deleted file mode 100644 index 609ffeb..0000000 --- a/support/pogojig/inkscape/inkex.py +++ /dev/null @@ -1,363 +0,0 @@ -#!/usr/bin/env python -# -*- coding: utf-8 -*- -""" -inkex.py -A helper module for creating Inkscape extensions - -Copyright (C) 2005,2010 Aaron Spike <aaron@ekips.org> and contributors - -Contributors: - Aurélio A. Heckert <aurium(a)gmail.com> - Bulia Byak <buliabyak@users.sf.net> - Nicolas Dufour, nicoduf@yahoo.fr - Peter J. R. Moulder <pjrm@users.sourceforge.net> - -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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -""" -import copy -import gettext -import optparse -import os -import random -import re -import sys -from math import * - -from lxml import etree - -#a dictionary of all of the xmlns prefixes in a standard inkscape doc -NSS = { -u'sodipodi' :u'http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd', -u'cc' :u'http://creativecommons.org/ns#', -u'ccOLD' :u'http://web.resource.org/cc/', -u'svg' :u'http://www.w3.org/2000/svg', -u'dc' :u'http://purl.org/dc/elements/1.1/', -u'rdf' :u'http://www.w3.org/1999/02/22-rdf-syntax-ns#', -u'inkscape' :u'http://www.inkscape.org/namespaces/inkscape', -u'xlink' :u'http://www.w3.org/1999/xlink', -u'xml' :u'http://www.w3.org/XML/1998/namespace' -} - -def localize(): - domain = 'inkscape' - if sys.platform.startswith('win'): - import locale - current_locale, encoding = locale.getdefaultlocale() - os.environ['LANG'] = current_locale - try: - localdir = os.environ['INKSCAPE_LOCALEDIR']; - trans = gettext.translation(domain, localdir, [current_locale], fallback=True) - except KeyError: - trans = gettext.translation(domain, fallback=True) - elif sys.platform.startswith('darwin'): - try: - localdir = os.environ['INKSCAPE_LOCALEDIR']; - trans = gettext.translation(domain, localdir, fallback=True) - except KeyError: - try: - localdir = os.environ['PACKAGE_LOCALE_DIR']; - trans = gettext.translation(domain, localdir, fallback=True) - except KeyError: - trans = gettext.translation(domain, fallback=True) - else: - try: - localdir = os.environ['PACKAGE_LOCALE_DIR']; - trans = gettext.translation(domain, localdir, fallback=True) - except KeyError: - trans = gettext.translation(domain, fallback=True) - #sys.stderr.write(str(localdir) + "\n") - trans.install() - -def debug(what): - sys.stderr.write(str(what) + "\n") - return what - -def errormsg(msg): - """Intended for end-user-visible error messages. - - (Currently just writes to stderr with an appended newline, but could do - something better in future: e.g. could add markup to distinguish error - messages from status messages or debugging output.) - - Note that this should always be combined with translation: - - import inkex - inkex.localize() - ... - inkex.errormsg(_("This extension requires two selected paths.")) - """ - if isinstance(msg, unicode): - sys.stderr.write(msg.encode("UTF-8") + "\n") - else: - sys.stderr.write((unicode(msg, "utf-8", errors='replace') + "\n").encode("UTF-8")) - -def are_near_relative(a, b, eps): - if (a-b <= a*eps) and (a-b >= -a*eps): - return True - else: - return False - -def check_inkbool(option, opt, value): - if str(value).capitalize() == 'True': - return True - elif str(value).capitalize() == 'False': - return False - else: - raise optparse.OptionValueError("option %s: invalid inkbool value: %s" % (opt, value)) - -def addNS(tag, ns=None): - val = tag - if ns!=None and len(ns)>0 and ns in NSS and len(tag)>0 and tag[0]!='{': - val = "{%s}%s" % (NSS[ns], tag) - return val - -class InkOption(optparse.Option): - TYPES = optparse.Option.TYPES + ("inkbool",) - TYPE_CHECKER = copy.copy(optparse.Option.TYPE_CHECKER) - TYPE_CHECKER["inkbool"] = check_inkbool - -class Effect: - """A class for creating Inkscape SVG Effects""" - - def __init__(self, *args, **kwargs): - self.document=None - self.original_document=None - self.ctx=None - self.selected={} - self.doc_ids={} - self.options=None - self.args=None - self.OptionParser = optparse.OptionParser(usage="usage: %prog [options] SVGfile",option_class=InkOption) - self.OptionParser.add_option("--id", - action="append", type="string", dest="ids", default=[], - help="id attribute of object to manipulate") - - def effect(self): - pass - - def getoptions(self,args=sys.argv[1:]): - """Collect command line arguments""" - self.options, self.args = self.OptionParser.parse_args(args) - - def parse(self, filename=None): - """Parse document in specified file or on stdin""" - - # First try to open the file from the function argument - if filename != None: - try: - stream = open(filename, 'r') - except Exception: - errormsg(_("Unable to open specified file: %s") % filename) - sys.exit() - - # If it wasn't specified, try to open the file specified as - # an object member - elif self.svg_file != None: - try: - stream = open(self.svg_file, 'r') - except Exception: - errormsg(_("Unable to open object member file: %s") % self.svg_file) - sys.exit() - - # Finally, if the filename was not specified anywhere, use - # standard input stream - else: - stream = sys.stdin - - p = etree.XMLParser(huge_tree=True) - self.document = etree.parse(stream, parser=p) - self.original_document = copy.deepcopy(self.document) - stream.close() - - # defines view_center in terms of document units - def getposinlayer(self): - #defaults - self.current_layer = self.document.getroot() - self.view_center = (0.0,0.0) - - layerattr = self.document.xpath('//sodipodi:namedview/@inkscape:current-layer', namespaces=NSS) - if layerattr: - layername = layerattr[0] - layer = self.document.xpath('//svg:g[@id="%s"]' % layername, namespaces=NSS) - if layer: - self.current_layer = layer[0] - - xattr = self.document.xpath('//sodipodi:namedview/@inkscape:cx', namespaces=NSS) - yattr = self.document.xpath('//sodipodi:namedview/@inkscape:cy', namespaces=NSS) - if xattr and yattr: - x = self.unittouu( xattr[0] + 'px' ) - y = self.unittouu( yattr[0] + 'px') - doc_height = self.unittouu(self.document.getroot().get('height')) - if x and y: - self.view_center = (float(x), doc_height - float(y)) # FIXME: y-coordinate flip, eliminate it when it's gone in Inkscape - - def getselected(self): - """Collect selected nodes""" - for i in self.options.ids: - path = '//*[@id="%s"]' % i - for node in self.document.xpath(path, namespaces=NSS): - self.selected[i] = node - - def getElementById(self, id): - path = '//*[@id="%s"]' % id - el_list = self.document.xpath(path, namespaces=NSS) - if el_list: - return el_list[0] - else: - return None - - def getParentNode(self, node): - for parent in self.document.getiterator(): - if node in parent.getchildren(): - return parent - break - - - def getdocids(self): - docIdNodes = self.document.xpath('//@id', namespaces=NSS) - for m in docIdNodes: - self.doc_ids[m] = 1 - - def getNamedView(self): - return self.document.xpath('//sodipodi:namedview', namespaces=NSS)[0] - - def createGuide(self, posX, posY, angle): - atts = { - 'position': str(posX)+','+str(posY), - 'orientation': str(sin(radians(angle)))+','+str(-cos(radians(angle))) - } - guide = etree.SubElement( - self.getNamedView(), - addNS('guide','sodipodi'), atts ) - return guide - - def output(self): - """Serialize document into XML on stdout""" - original = etree.tostring(self.original_document) - result = etree.tostring(self.document) - if original != result: - self.document.write(sys.stdout) - - def affect(self, args=sys.argv[1:], output=True): - """Affect an SVG document with a callback effect""" - self.svg_file = args[-1] - self.getoptions(args) - self.parse() - self.getposinlayer() - self.getselected() - self.getdocids() - self.effect() - if output: self.output() - - def uniqueId(self, old_id, make_new_id = True): - new_id = old_id - if make_new_id: - while new_id in self.doc_ids: - new_id += random.choice('0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ') - self.doc_ids[new_id] = 1 - return new_id - - def xpathSingle(self, path): - try: - retval = self.document.xpath(path, namespaces=NSS)[0] - except: - errormsg(_("No matching node for expression: %s") % path) - retval = None - return retval - - #a dictionary of unit to user unit conversion factors - __uuconv = {'in':96.0, 'pt':1.33333333333, 'px':1.0, 'mm':3.77952755913, 'cm':37.7952755913, - 'm':3779.52755913, 'km':3779527.55913, 'pc':16.0, 'yd':3456.0 , 'ft':1152.0} - - # Function returns the unit used for the values in SVG. - # For lack of an attribute in SVG that explicitly defines what units are used for SVG coordinates, - # try to calculate the unit from the SVG width and SVG viewbox. - # Defaults to 'px' units. - def getDocumentUnit(self): - svgunit = 'px' #default to pixels - - svgwidth = self.document.getroot().get('width') - viewboxstr = self.document.getroot().get('viewBox') - if viewboxstr: - unitmatch = re.compile('(%s)$' % '|'.join(self.__uuconv.keys())) - param = re.compile(r'(([-+]?[0-9]+(\.[0-9]*)?|[-+]?\.[0-9]+)([eE][-+]?[0-9]+)?)') - - p = param.match(svgwidth) - u = unitmatch.search(svgwidth) - - width = 100 #default - viewboxwidth = 100 #default - svgwidthunit = 'px' #default assume 'px' unit - if p: - width = float(p.string[p.start():p.end()]) - else: - errormsg(_("SVG Width not set correctly! Assuming width = 100")) - if u: - svgwidthunit = u.string[u.start():u.end()] - - viewboxnumbers = [] - for t in viewboxstr.split(): - try: - viewboxnumbers.append(float(t)) - except ValueError: - pass - if len(viewboxnumbers) == 4: #check for correct number of numbers - viewboxwidth = viewboxnumbers[2] - - svgunitfactor = self.__uuconv[svgwidthunit] * width / viewboxwidth - - # try to find the svgunitfactor in the list of units known. If we don't find something, ... - eps = 0.01 #allow 1% error in factor - for key in self.__uuconv: - if are_near_relative(self.__uuconv[key], svgunitfactor, eps): - #found match! - svgunit = key; - - return svgunit - - - def unittouu(self, string): - '''Returns userunits given a string representation of units in another system''' - unit = re.compile('(%s)$' % '|'.join(self.__uuconv.keys())) - param = re.compile(r'(([-+]?[0-9]+(\.[0-9]*)?|[-+]?\.[0-9]+)([eE][-+]?[0-9]+)?)') - - p = param.match(string) - u = unit.search(string) - if p: - retval = float(p.string[p.start():p.end()]) - else: - retval = 0.0 - if u: - try: - return retval * (self.__uuconv[u.string[u.start():u.end()]] / self.__uuconv[self.getDocumentUnit()]) - except KeyError: - pass - else: # default assume 'px' unit - return retval / self.__uuconv[self.getDocumentUnit()] - - return retval - - def uutounit(self, val, unit): - return val / (self.__uuconv[unit] / self.__uuconv[self.getDocumentUnit()]) - - def addDocumentUnit(self, value): - ''' Add document unit when no unit is specified in the string ''' - try: - float(value) - return value + self.getDocumentUnit() - except ValueError: - return value - -# vim: expandtab shiftwidth=4 tabstop=8 softtabstop=4 fileencoding=utf-8 textwidth=99 |