Platform.py

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"""
Copyright 2008 Free Software Foundation, Inc.
This file is part of GNU Radio

GNU Radio Companion is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

GNU Radio Companion is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
"""
##@package grc_gnuradio.Platform
#Gnuradio python specific platform.
#@author Josh Blum

import os
from grc.Constants import FLOW_GRAPH_FILE_EXTENSION
from grc.elements.Platform import Platform as _Platform
from FlowGraph import FlowGraph as _FlowGraph
from Connection import Connection as _Connection
from Block import Block as _Block
from Port import Source,Sink
from Param import Param as _Param
from Generator import Generator
from Constants import *

class Platform(_Platform):

        def __init__(self, block_paths_internal_only=[], block_paths_external=[]):
                """!
                Make a platform for gnuradio.
                The internal only list will replace the current block path.
                @param block_paths_internal_only a list of blocks internal to this platform
                @param block_paths_external a list of blocks to load in addition to the above blocks
                """
                #ensure hier dir
                if not os.path.exists(HIER_BLOCKS_LIB_PATH): os.mkdir(HIER_BLOCKS_LIB_PATH)
                #handle internal/only
                if block_paths_internal_only: 
                        block_paths = map(lambda b: os.path.join(BLOCK_PATH, b), ['options.xml'] + block_paths_internal_only)
                else: block_paths = [BLOCK_PATH]
                #handle external
                block_paths.extend(block_paths_external)
                #append custom hiers
                block_paths.append(HIER_BLOCKS_LIB_PATH)
                #init
                _Platform.__init__(
                        self,
                        name='GNURadio Python',
                        key='gnuradio_python',
                        block_paths=block_paths,
                        block_dtd=BLOCK_DTD,
                        block_tree=BLOCK_TREE,
                        default_flow_graph=DEFAULT_FLOW_GRAPH,
                        generator=Generator,
                )

        ##############################################
        # Constructors
        ##############################################
        FlowGraph = _FlowGraph
        Connection = _Connection
        Block = _Block
        Source = Source
        Sink = Sink
        Param = _Param

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