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# Revision $Id: __init__.py 12447 2010-12-08 02:20:13Z kwc $

import roslib; roslib.load_manifest('rxgraph')

import rxgraph.impl
from optparse import OptionParser

def rxgraph_main():
    parser = OptionParser(usage="usage: rxgraph [options]")
    parser.add_option("-o", "--dot",
                      dest="output_file", default=None,
                      help="ouput graph as graphviz dot file", metavar="DOTFILE")
    parser.add_option("--nodens",
                      dest="node_ns", default=None,
                      help="only show nodes in specified namespace")
    parser.add_option("--topicns",
                      dest="topic_ns", default=None,
                      help="only show topics in specified namespace")
    
    options, args = parser.parse_args()
    if args:
        parser.error("invalid arguments")


    import subprocess
    try:
        subprocess.check_call(['dot', '-V'], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
    except:
        print >> sys.stderr, "Graphviz does not appear to be installed on your system. Please run:\n\n\trosdep install rosgraph\n\nto install the necessary dependencies on your system"
        sys.exit(1)

        
    # initialize logging libraries
    import logging
    import roslib.roslogging
    roslib.roslogging.configure_logging('rxgraph', logging.INFO)
    try:
        import wx
        app = wx.App()    

        frame = rxgraph.impl.init_frame()
        updater = rxgraph.impl.init_updater(frame, node_ns=options.node_ns, topic_ns=options.topic_ns, output_file=options.output_file)
        updater.start()
        
        frame.Show()
        app.MainLoop()

    except KeyboardInterrupt:
        pass
    finally:
        rxgraph.impl.set_shutdown(True)

        
if __name__ == '__main__':
    rxgraph_main()
