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# Copyright (c) 2005 Intel Corporation
# All rights reserved.
#
# This file is distributed under the terms in the attached INTEL-LICENSE
# file. If you do not find these files, copies can be found by writing to
# Intel Research Berkeley, 2150 Shattuck Avenue, Suite 1300, Berkeley, CA,
# 94704. Attention: Intel License Inquiry.
# Generate the picture and cmap for a configuration's wiring
from xml.dom.minidom import *
from nesdoc.utils import *
from nesdoc.generators import *
from sys import *
from os import system
def generate_component_graph(comp):
generate_graph("chtml", "..", comp, xml_tag(comp, "wiring"),
comp.getAttribute("qname"), comp.getAttribute("nicename"))
def generate_graph(dir, repository, xml, wiring, name, nicename):
if not wiring:
return
# Return the element definition for a given wiring endpoint
def lookup_elem(endpoint):
elemref = xml_tagset(endpoint, [ "interface-ref", "function-ref" ])
return refidx[elemref.getAttribute("ref")]
# Define nodes in a dot graph file. Each node is given a name, a graphic
# style and a label. The elements map is updated to record the mapping
# from XML node names ("ref" attribute) and dot-file node names.
# gf is the dot graph file
# wire is a wiring graph edge
# tag specifies which node to extract from wire (either "to" or "from")
# Does nothing if the node has already been added.
def add_node(gf, wire, tag):
endpoint = xml_tag(wire, tag)
elem = lookup_elem(endpoint)
ref = elem.getAttribute("ref")
if endpoints.has_key(ref): return
compref = xml_tag(lookup_elem(endpoint), "component-ref")
if compref.getAttribute("qname") == name:
# reference to one's own interfaces become ellipses
endpoints[ref] = "n%s" % ref
gf.write(' %s [shape=ellipse, style=filled, label="%s", fontsize=12];\n' % (endpoints[ref], elem.getAttribute("name")))
else:
# references to interfaces or functions of other components become
# a reference to a box representing that component.
# each instance of a generic component gets a separate box.
# there is a link to the component's own HTML file.
ncompname = compref.getAttribute("qname")
ncomp = compidx[ncompname]
# Map this function or interface to the component (note that different
# instances of generic components have different qnames)
endpoints[ref] = ncompname
# Define the component style. We may define it several times, but all
# definitions are identical...
gf.write(' "%s" ' % ncompname)
styles = ["fontsize=12"]
if xml_tag(ncomp, "configuration"):
# configurations gets a double box
styles.append("shape=box,peripheries=2")
else:
styles.append("shape=box")
# Check for generic component instances
instance = xml_tag(ncomp, "instance")
if instance:
# Make these dashed, with a label showing the generic component
# and the instance name
styles.append("style=dashed")
iname = ncompname[find(ncompname, ".") + 1:]
instanceof = xml_tag(instance, "component-ref")
instanceof_name = instanceof.getAttribute("qname")
if iname == instanceof_name:
styles.append('label="%s"' % instanceof_name)
else:
styles.append('label="%s\\n(%s)"' % (instanceof_name, iname))
styles.append('URL="%s/chtml/%s.html"' % (repository, instanceof.getAttribute("nicename")))
else:
# Just a regular component
styles.append('URL="%s/chtml/%s.html"' % (repository, ncomp.getAttribute("nicename")))
if styles != []:
gf.write("[%s]" % join(styles, ", "))
gf.write(";\n")
def compname(endpoint):
return endpoints[lookup_elem(endpoint).getAttribute("ref")]
def wirestyle(endpoint):
elem = lookup_elem(endpoint)
if elem.tagName == "function":
# missing: bold style for parameterised functions
styles = ['label="%s"' % function_signature_str(elem, lambda (name): "X")]
else:
assert elem.tagName == "interface"
instance = xml_tag(elem, "instance")
idef = xml_tag(instance, "interfacedef-ref")
arguments = xml_tag(instance, "arguments")
parameters = xml_tag(elem, "interface-parameters")
def_name = idef.getAttribute("qname")
sig = def_name
if arguments:
iargs = join(map(lambda (arg): typename_str(arg, ""),
xml_elements(arguments)), ", ")
sig += "<" + iargs + ">"
if parameters:
iparms = join(map(lambda (arg): typename_str(arg, ""),
xml_elements(parameters)), ", ")
sig += "[" + iparms + "]"
styles = [ 'label="%s"' % sig ]
if xml_tag(elem, "interface-parameters"):
styles.append('style=bold')
styles.append('URL="%s/ihtml/%s.html"' % (repository, idef.getAttribute("nicename")))
styles.append("fontsize=10")
return styles
# build indices from ref attribute values to the corresponding elements
refidx = {}
compidx = {}
for intf in xml.getElementsByTagName("interface"):
refidx[intf.getAttribute("ref")] = intf
for fn in xml.getElementsByTagName("function"):
refidx[fn.getAttribute("ref")] = fn
for ncomp in xml.getElementsByTagName("component"):
compidx[ncomp.getAttribute("qname")] = ncomp
# create the dot graph specification
gf = file("%s/%s.dot" % (dir, nicename), "w")
gf.write('digraph "%s" {\n' % nicename)
endpoints = {}
for wire in wiring.getElementsByTagName("wire"):
add_node(gf, wire, "from")
add_node(gf, wire, "to")
for wire in wiring.getElementsByTagName("wire"):
src = xml_tag(wire, "from")
dest = xml_tag(wire, "to")
gf.write(' "%s" -> "%s"' % (compname(src), compname(dest)))
gf.write(' [%s];\n' % join(wirestyle(src), ", "))
gf.write("}\n")
gf.close()
# Run dot twice to get a picture and cmap
system("dot -Tpng -o%s/%s.png %s/%s.dot" % (dir, nicename, dir, nicename))
system("dot -Tcmap -o%s/%s.cmap %s/%s.dot" % (dir, nicename, dir, nicename))
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