def run(cmd_format, stdin_str=None, verbose=False):
"""Run command"""
if verbose:
inkex.debug(cmd_format)
out = err = None
myproc = Popen(cmd_format,
shell=False,
stdin=PIPE,
stdout=PIPE,
stderr=PIPE)
out, err = myproc.communicate(stdin_str)
if myproc.returncode == 0:
return out
elif err is not None:
inkex.errormsg(err)
def effect(self):
"""Main entry point to process current document."""
if self.has_tagrefs():
# unsafe to use with extensions ...
inkex.errormsg("This document uses Inkscape selection sets. "
"Modifying the content with a PathOps extension "
"may cause Inkscape to crash on reload or close. "
"Please delete the selection sets, "
"save the document under a new name and "
"try again in a new Inkscape session.")
else:
# process selection
top_path, other_paths = self.get_sorted_ids()
if top_path is None or other_paths is None:
return
else:
self.loop_pathops(top_path, other_paths)
def get_selected_ids(self):
"""Return a list of valid ids for inkscape path operations."""
id_list = []
if not len(self.selected):
pass
else:
# level = 0: unlimited recursion into groups
# level = 1: process top-level groups only
level = 0 if self.options.recursive_sel else 1
for node in self.selected.values():
self.recurse_selection(node, id_list, level)
if len(id_list) < 2:
inkex.errormsg("This extension requires at least 2 elements "
"of type path, shape or text. "
"The elements can be part of selected groups, "
"or directly selected.")
return None
else:
return id_list