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# vim: set fileencoding=UTF-8:
# Copyright 2013 Red Hat, Inc.
# Author: Jan Pokorný <jpokorny at redhat dot com>
# Distributed under GPLv2+; generated content under CC-BY-SA 3.0
# (to view a copy, visit http://creativecommons.org/licenses/by-sa/3.0/)
"""Custom wrapping of pydot"""
from sys import path
from os.path import expanduser, extsep
from pydot import Dot, Edge, Node, Subgraph
REGISTRY = {}
# modify/mutate BLACKLIST in order to filter some elements out
# (not a beautiful, rather ad-hoc design, I know)
BLACKLIST = []
#
# Customization via meta level
#
# obfuscation contest in recursively yielding base classes up to given set
bases = lambda x: (lambda f_, *xs_: f_(f_, *xs_)) \
(lambda f, x=[], *xs:
[x] + f(f, *x.__bases__) + f(f, *xs)
if x not in ([], LibSubgraph, LibNode, LibEdge)
else [],
x)
bl_test = lambda ix: not set(bases(ix.__class__)).intersection(BLACKLIST)
def bl_map_nodes_edges(nodes, edges, prev_nnames=None):
nnames = prev_nnames if prev_nnames is not None else set()
for n in nodes:
n.get_attributes()['style'] = 'invis'
nnames.add(n.get_name())
for e in edges:
if not bl_test(e) \
or e.get_source() in nnames or e.get_destination() in nnames:
e.get_attributes()['style'] = 'invis'
class LibMeta(type):
promote_url = False
def __new__(cls, name, bases, attrs):
ret = super(LibMeta, cls).__new__(cls, name, bases, attrs)
if REGISTRY.setdefault(name, ret) is not ret:
raise RuntimeError("Unexpected redefinition in REGISTRY")
return ret
def __init__(cls, name, bases, attrs):
super(LibMeta, cls).__init__(name, bases, attrs)
old_init = cls.__init__
def new_init(self, *args, **kwargs):
subgraphs = kwargs.pop('_subgraphs', ())
nodes = kwargs.pop('_nodes', ())
edges = kwargs.pop('_edges', ())
if not hasattr(self, 'nnames'):
self.nnames = set()
nnames = self.nnames
map(lambda x: nnames.update(getattr(x, 'nnames')),
tuple(subgraphs) + tuple(nodes) + tuple(edges))
for akey, avalue in getattr(cls, 'defaults', {}).iteritems():
kwargs.setdefault(akey, avalue)
if type(self).promote_url:
if hasattr(self, 'web'):
kwargs['URL'] = getattr(self, 'web', None)
else:
kwargs['URL'] = "class://" + self.__class__.__name__
old_init(self, *args, **kwargs)
super(cls, self).__init__(*args, **kwargs)
bl_map_nodes_edges(filter(lambda x: not bl_test(x), nodes),
edges, nnames)
for n in nodes:
self.add_node(n)
for e in edges:
self.add_edge(e)
for s in filter(bl_test, subgraphs):
s and self.add_subgraph(s)
cls.__init__ = new_init
class LibDot(Dot):
__metaclass__ = LibMeta
def __init__(self, *args, **kwargs):
kwargs.setdefault('graph_type', 'digraph')
super(LibDot, self).__init__(*args, **kwargs)
#self.set_suppress_disconnected(True)
class LibSubgraph(Subgraph):
__metaclass__ = LibMeta
def __init__(self, *args, **kwargs):
super(LibSubgraph, self).__init__(*args, **kwargs)
#self. set_suppress_disconnected(True)
class LibNode(Node):
__metaclass__ = LibMeta
class LibEdge(Edge):
__metaclass__ = LibMeta
# Attributes
class LibAttributeMeta(type):
def __getattr__(cls, what):
return (cls.__name__.lower(), what)
class LibAttribute(object):
__metaclass__ = LibAttributeMeta
def __new__(self, what):
return (self.__name__.lower(), what)
#return getattr(self, what)
#
# main-helpers
#
def gen_graph(graph, blacklist=(), **kwargs):
# can eventually restore the state
BLACKLIST[:] = blacklist
return graph()
def xdot_graph(*args, **kwargs):
import gtk
import gtk.gdk
import pango
try:
path[:] = [expanduser('~/wrkspc/goss-medium/jrfonseca.xdot')] + path[:]
import xdot
except ImportError:
print 'missing xdot; use "pip install xdot" or equivalent'
raise
class LibDotWidget(xdot.DotWidget):
"""Overriden so as to serve our info tooltip purpose"""
def __init__(self, *args, **kwargs):
super(LibDotWidget, self).__init__(*args, **kwargs)
self.connect('leave-notify-event',
lambda self, *args: self.set_tooltip_markup(None))
def on_click(self, element, event):
if element is None or not element.url:
return False
# create the resulting markup
cls = REGISTRY[element.url.split('class://', 1)[1]]
markup = ""
# XXX: sort the keys in dicts?
if hasattr(cls, 'summary'):
markup += "<b>" + cls.summary + "</b>\n\n"
if hasattr(cls, 'web'):
markup += "<u>" + cls.web + "</u>\n\n"
if hasattr(cls, 'repo'):
markup += "repository:\n"
for name, value in cls.repo.iteritems():
markup += "* " + name + ": <u>" + str(value) + "</u>\n"
markup += '\n'
if hasattr(cls, 'man'):
markup += "man:\n"
for item in cls.man:
markup += "* <i>" + item + "</i>\n"
markup += '\n'
if hasattr(cls, 'ids'):
markup += "identifiers:\n"
for name, value in cls.ids.iteritems():
markup += "* " + name + ": <i>" + str(value) + "</i>\n"
markup += '\n'
if hasattr(cls, 'secprops'):
markup += "security properties:\n"
for name, value in cls.secprops.iteritems():
markup += "* " + name + ": <i>" + str(value) + "</i>\n"
markup += '\n'
if hasattr(cls, 'miscprops'):
markup += "miscellaneous properties:\n"
for name, value in cls.miscprops.iteritems():
markup += "* " + name + ": <i>" + str(value) + "</i>\n"
markup += '\n'
markup = markup.rstrip('\n')
print pango.parse_markup(markup)[1].join(2 * ['\n' + 3*'=' + '\n'])
self.set_tooltip_markup(markup)
return False
class LibDotWindow(xdot.DotWindow):
# heavily inspired from http://zetcode.com/gui/pygtk/menus/
def on_toggle_item(self, widget):
label = widget.get_label()
bl = self._kwargs.setdefault('blacklist', [])
change = False
cls = REGISTRY[label]
if widget.active and cls in bl:
bl.remove(cls)
bs = bases(cls)
bs.remove(cls)
for item in filter(lambda x: isinstance(x, gtk.CheckMenuItem)
and REGISTRY[x.get_label()] in bs,
widget.get_parent().get_children()):
if not item.get_active():
item.set_active(True)
change = True
elif not widget.active and cls not in bl:
bl.append(cls)
change = True
if change and self._can_change:
self.set_dotcode(
gen_graph(*self._args, **self._kwargs).to_string())
def on_clean_all(self, widget):
self._can_change = False
for item in filter(lambda x: isinstance(x, gtk.CheckMenuItem),
widget.get_parent().get_children()):
item.set_active(False)
self.set_dotcode(
gen_graph(*self._args, **self._kwargs).to_string())
self._can_change = True
def on_set_all(self, widget):
self._can_change = False
for item in filter(lambda x: isinstance(x, gtk.CheckMenuItem),
widget.get_parent().get_children()):
item.set_active(True)
self.set_dotcode(
gen_graph(*self._args, **self._kwargs).to_string())
self._can_change = True
def __init__(self, *args, **kwargs):
self._args = args
self._kwargs = kwargs
self._can_change = True
super(LibDotWindow, self).__init__(LibDotWidget())
dotcode = gen_graph(*args, **kwargs).to_string()
title = dotcode[dotcode.find('digraph', 0, 512) + len('digraph')
:
dotcode.find('{', 0, 512)].strip(' \'"')
self.base_title = title
self.set_dotcode(dotcode)
mb = gtk.MenuBar()
filemenu = gtk.Menu()
filem = gtk.MenuItem("File")
filem.set_submenu(filemenu)
edgemenu = gtk.Menu()
edge = gtk.MenuItem("Edge")
edge.set_submenu(edgemenu)
edgemenuitem = gtk.MenuItem("Clean all")
edgemenuitem.connect("activate", self.on_clean_all)
edgemenu.append(edgemenuitem)
edgemenuitem = gtk.MenuItem("Set all")
edgemenuitem.connect("activate", self.on_set_all)
edgemenu.append(edgemenuitem)
edgemenu.append(gtk.SeparatorMenuItem())
nodemenu = gtk.Menu()
node = gtk.MenuItem("Node")
node.set_submenu(nodemenu)
nodemenuitem = gtk.MenuItem("Clean all")
nodemenuitem.connect("activate", self.on_clean_all)
nodemenu.append(nodemenuitem)
nodemenuitem = gtk.MenuItem("Set all")
nodemenuitem.connect("activate", self.on_set_all)
nodemenu.append(nodemenuitem)
nodemenu.append(gtk.SeparatorMenuItem())
# memoization + convenience
EdgeInvisible = REGISTRY.get('EdgeInvisible')
NodeInvisible = REGISTRY.get('NodeInvisible')
for i in REGISTRY.itervalues():
try:
if issubclass(i, LibEdge):
if i in (LibEdge, EdgeInvisible):
continue
imenuitem = gtk.CheckMenuItem("%s" % i.__name__)
imenuitem.set_active(True)
imenuitem.connect("activate", self.on_toggle_item)
edgemenu.append(imenuitem)
elif issubclass(i, LibNode):
if i in (LibNode, NodeInvisible):
continue
imenuitem = gtk.CheckMenuItem("%s" % i.__name__)
imenuitem.set_active(True)
imenuitem.connect("activate", self.on_toggle_item)
nodemenu.append(imenuitem)
except:
pass
exit = gtk.MenuItem("Exit")
exit.connect("activate", gtk.main_quit)
filemenu.append(exit)
mb.append(filem)
mb.append(edge)
mb.append(node)
sb = gtk.Statusbar()
sb.push(1, "Ready")
vbox = self.get_children()[0]
vbox.pack_start(mb, False, False, 0)
vbox.pack_start(sb, False, False, 0)
vbox.reorder_child(mb, 0)
self.connect("destroy", gtk.main_quit)
self.maximize()
self.show_all()
window = LibDotWindow(*args, **kwargs)
window.connect('destroy', gtk.main_quit)
gtk.main()
def main(graph, argv, *args, **kws):
# -x deprecated, supported for backward compatibility
x, argv = (1, argv[1:]) if len(argv) <= 1 or argv[1] == '-x' else (0, argv)
output = kws.pop('output', 'sinenomine')
if x:
xdot_graph(graph, **kws)
else:
LibMeta.promote_url = True
ext = argv[1] if len(argv) > 1 else 'pdf'
fmt = {'dot': 'raw'}.get(ext, ext)
output += extsep + ext
gen_graph(graph, **kws).write(output, format=fmt,
prog=['dot'].extend(args))
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