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Viewing changes to dotgraph.py

  • Committer: Aaron Bentley
  • Date: 2005-09-01 17:03:54 UTC
  • Revision ID: abentley@panoramicfeedback.com-20050901170354-d4284bd69b877fa5
Used rsvga for nice antialiasing

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dotgraph.py
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from xml.sax.saxutils import escape
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import os.path
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import errno
 
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import tempfile
 
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import shutil
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mail_map = {}
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    def __init__(self):
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        Exception.__init__(self, "Can't find dot!")
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class NoRsvg(Exception):
 
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    def __init__(self):
 
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        Exception.__init__(self, "Can't find rsvg!")
 
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class Node(object):
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    def __init__(self, name, color=None, label=None, rev_id=None,
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                 cluster=None):
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            yield "}\n"
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    yield "}\n"
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def invoke_dot_aa(input, out_file, file_type='png'):
 
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    """\
 
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    Produce antialiased Dot output, invoking rsvg on an intermediate file.
 
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    rsvg only supports png, jpeg and .ico files."""
 
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    tempdir = tempfile.mkdtemp()
 
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    try:
 
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        temp_file = os.path.join(tempdir, 'temp.svg')
 
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        invoke_dot(input, temp_file, 'svg')
 
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        cmdline = ['rsvg', temp_file, out_file]
 
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        try:
 
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            rsvg_proc = Popen(cmdline)
 
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        except OSError, e:
 
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            if e.errno == errno.ENOENT:
 
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                raise NoRsvg()
 
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        status = rsvg_proc.wait()
 
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    finally:
 
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        shutil.rmtree(tempdir)
 
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    return status
 
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def invoke_dot(input, out_file=None, file_type='svg', antialias=None):
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    cmdline = ['dot', '-T%s' % file_type]
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    if out_file is not None: