![[tokkee]](http://tokkee.org/images/avatar.png){kind=avatar}
index 041f7bff77edadc3a477d6ee5b497eb4d11752f2..8be7b5282869fa4355d7ae6d30a28730a68d0a25 100755 (executable)
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
"""
-import sys, copy, optparse
+import sys, copy, optparse, random, re
#a dictionary of all of the xmlns prefixes in a standard inkscape doc
NSS = {
-u'sodipodi' :u'http://inkscape.sourceforge.net/DTD/sodipodi-0.dtd',
-u'cc' :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'sodipodi' :u'http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd',
+u'cc' :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'
}
+#a dictionary of unit to user unit conversion factors
+uuconv = {'in':90.0, 'pt':1.25, 'px':1, 'mm':3.5433070866, 'cm':35.433070866, 'pc':15.0}
+def unittouu(string):
+ '''Returns userunits given a string representation of units in another system'''
+ unit = re.compile('(%s)$' % '|'.join(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 * uuconv[u.string[u.start():u.end()]]
+ except KeyError:
+ pass
+ return retval
+
try:
- import xml.dom.ext
- import xml.dom.ext.reader.Sax2
- import xml.xpath
+ import xml.dom.ext
+ import xml.dom.minidom
+ import xml.dom.ext.reader.Sax2
+ import xml.xpath
except:
- sys.exit('The inkex.py module requires PyXML. Please download the latest version from <http://pyxml.sourceforge.net/>.')
+ sys.exit('The inkex.py module requires PyXML. Please download the latest version from <http://pyxml.sourceforge.net/>.')
def debug(what):
- sys.stderr.write(str(what) + "\n")
- return what
+ sys.stderr.write(str(what) + "\n")
+ return what
def check_inkbool(option, opt, value):
- if str(value).capitalize() == 'True':
- return True
- elif str(value).capitalize() == 'False':
- return False
- else:
- raise OptionValueError("option %s: invalid inkbool value: %s" % (opt, value))
+ if str(value).capitalize() == 'True':
+ return True
+ elif str(value).capitalize() == 'False':
+ return False
+ else:
+ raise OptionValueError("option %s: invalid inkbool value: %s" % (opt, value))
class InkOption(optparse.Option):
TYPES = optparse.Option.TYPES + ("inkbool",)
class Effect:
- """A class for creating Inkscape SVG Effects"""
- def __init__(self):
- self.document=None
- self.selected={}
- 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,file=None):
- """Parse document in specified file or on stdin"""
- reader = xml.dom.ext.reader.Sax2.Reader()
- try:
- try:
- stream = open(file,'r')
- except:
- stream = open(self.args[-1],'r')
- except:
- stream = sys.stdin
- self.document = reader.fromStream(stream)
- stream.close()
- def getselected(self):
- """Collect selected nodes"""
- for id in self.options.ids:
- path = '//*[@id="%s"]' % id
- for node in xml.xpath.Evaluate(path,self.document):
- self.selected[id] = node
- def output(self):
- """Serialize document into XML on stdout"""
- xml.dom.ext.Print(self.document)
- def affect(self):
- """Affect an SVG document with a callback effect"""
- self.getoptions()
- self.parse()
- self.getselected()
- self.effect()
- self.output()
+ """A class for creating Inkscape SVG Effects"""
+ def __init__(self, *args, **kwargs):
+ self.id_characters = '0123456789abcdefghijklmnopqrstuvwkyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
+ self.document=None
+ self.ctx=None
+ self.selected={}
+ self.doc_ids={}
+ self.options=None
+ self.args=None
+ self.use_minidom=kwargs.pop("use_minidom", False)
+ 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,file=None):
+ """Parse document in specified file or on stdin"""
+ reader = xml.dom.ext.reader.Sax2.Reader()
+ try:
+ try:
+ stream = open(file,'r')
+ except:
+ stream = open(self.args[-1],'r')
+ except:
+ stream = sys.stdin
+ if self.use_minidom:
+ self.document = xml.dom.minidom.parse(stream)
+ else:
+ self.document = reader.fromStream(stream)
+ self.ctx = xml.xpath.Context.Context(self.document,processorNss=NSS)
+ stream.close()
+ def getposinlayer(self):
+ ctx = xml.xpath.Context.Context(self.document,processorNss=NSS)
+ #defaults
+ self.current_layer = self.document.documentElement
+ self.view_center = (0.0,0.0)
+
+ layerattr = xml.xpath.Evaluate('//sodipodi:namedview/@inkscape:current-layer',self.document,context=ctx)
+ if layerattr:
+ layername = layerattr[0].value
+ layer = xml.xpath.Evaluate('//g[@id="%s"]' % layername,self.document,context=ctx)
+ if layer:
+ self.current_layer = layer[0]
+
+ xattr = xml.xpath.Evaluate('//sodipodi:namedview/@inkscape:cx',self.document,context=ctx)
+ yattr = xml.xpath.Evaluate('//sodipodi:namedview/@inkscape:cy',self.document,context=ctx)
+ doc_height = unittouu(self.document.documentElement.getAttribute('height'))
+ if xattr and yattr:
+ x = xattr[0].value
+ y = yattr[0].value
+ 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 id in self.options.ids:
+ path = '//*[@id="%s"]' % id
+ for node in xml.xpath.Evaluate(path,self.document):
+ self.selected[id] = node
+ def getdocids(self):
+ docIdNodes = xml.xpath.Evaluate('//@id',self.document,context=self.ctx)
+ for m in docIdNodes:
+ self.doc_ids[m.value] = 1
+ def output(self):
+ """Serialize document into XML on stdout"""
+ xml.dom.ext.Print(self.document)
+ def affect(self):
+ """Affect an SVG document with a callback effect"""
+ self.getoptions()
+ self.parse()
+ self.getposinlayer()
+ self.getselected()
+ self.getdocids()
+ self.effect()
+ 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 = "%s%s" % (new_id,random.choice(self.id_characters))
+ self.doc_ids[new_id] = 1
+ return new_id
+ def xpathSingle(self, path):
+ try:
+ retval = xml.xpath.Evaluate(path,self.document,context=self.ctx)[0]
+ except:
+ debug("No matching node for expression: %s" % path)
+ retval = None
+ return retval
+