def get_all_prop_defaults():
        """Get prop default information in a form we can use."""
        prop_defaults = {}
        for alg_name in AlgorithmFactory.getRegisteredAlgorithms(True).keys():
                alg = AlgorithmManager.create(alg_name)
                for prop_name in alg.orderedProperties():
                        prop = alg.getProperty(prop_name)
                        if prop.getDefault in prop_defaults:
                                prop_defaults[prop.getDefault][0] += 1
                                prop_defaults[prop.getDefault][1].append(str(alg))
                        else:
                                prop_defaults[prop.getDefault] = [1, [str(alg)], prop_name]
        return prop_defaults

def print_default_usage_table():
        """Prints a table of all default values, how many times they are used, and an example algorithm
        that uses it."""
        table = [["#", "Default", "Example Algorithm"]]
        
        prop_defaults = get_all_prop_defaults()
        for prop_default in sorted(prop_defaults.keys()):
                table.append([
                        prop_defaults[prop_default][0],
                        prop_default,
                        prop_defaults[prop_default][1]])
        
        row_format ="{:>5} | {:<35} | {:<50}"
        for row in table:
                print row_format.format(*row)

def print_all_algs_that_use_default_value(default_str):
        """For a given default value, print the names of all the algorithms that have
        properties that use it."""
        prop_defaults = get_all_prop_defaults()
        
        try:
                algs = prop_defaults[default_str][1]
        except:
                print "No properties exist with a default value of %s." % default_str
        else:
                print "The following algorithms contain a property with default value of %s:" % default_str
                for alg in algs:
                        print alg
                print

# Uncomment to use:
# print_all_algs_that_use_default_value("#")
# print_default_usage_table()