From 74eb0b9a9a685a32be21db30f097a22ddf3ec4cf Mon Sep 17 00:00:00 2001
From: Tim O'Shea <tim.oshea753@gmail.com>
Date: Mon, 8 Jul 2013 10:29:19 -0400
Subject: grc: Fix whitespace issue in grc to use proper spaces

Remove all \t's to match the rest of GNU Radio
---
 grc/base/FlowGraph.py | 552 +++++++++++++++++++++++++-------------------------
 1 file changed, 272 insertions(+), 280 deletions(-)

(limited to 'grc/base/FlowGraph.py')

diff --git a/grc/base/FlowGraph.py b/grc/base/FlowGraph.py
index a35afa363b..2f2d8c65e1 100644
--- a/grc/base/FlowGraph.py
+++ b/grc/base/FlowGraph.py
@@ -23,296 +23,288 @@ from .. gui import Messages
 
 class FlowGraph(Element):
 
-	def __init__(self, platform):
-		"""
-		Make a flow graph from the arguments.
-		
-		Args:
-		    platform: a platforms with blocks and contrcutors
-		
-		Returns:
-		    the flow graph object
-		"""
-		#initialize
-		Element.__init__(self, platform)
-		#inital blank import
-		self.import_data()
+    def __init__(self, platform):
+        """
+        Make a flow graph from the arguments.
+        
+        Args:
+            platform: a platforms with blocks and contrcutors
+        
+        Returns:
+            the flow graph object
+        """
+        #initialize
+        Element.__init__(self, platform)
+        #inital blank import
+        self.import_data()
 
-	def _get_unique_id(self, base_id=''):
-		"""
-		Get a unique id starting with the base id.
-		
-		Args:
-		    base_id: the id starts with this and appends a count
-		
-		Returns:
-		    a unique id
-		"""
-		index = 0
-		while True:
-			id = '%s_%d'%(base_id, index)
-			index = index + 1
-			#make sure that the id is not used by another block
-			if not filter(lambda b: b.get_id() == id, self.get_blocks()): return id
+    def _get_unique_id(self, base_id=''):
+        """
+        Get a unique id starting with the base id.
+        
+        Args:
+            base_id: the id starts with this and appends a count
+        
+        Returns:
+            a unique id
+        """
+        index = 0
+        while True:
+            id = '%s_%d'%(base_id, index)
+            index = index + 1
+            #make sure that the id is not used by another block
+            if not filter(lambda b: b.get_id() == id, self.get_blocks()): return id
 
-	def __str__(self): return 'FlowGraph - %s(%s)'%(self.get_option('title'), self.get_option('id'))
-	def rewrite(self):
-		def refactor_bus_structure():
-			
-			for block in self.get_blocks():
-				for direc in ['source', 'sink']:
-					if direc == 'source':
-						get_p = block.get_sources;
-						get_p_gui = block.get_sources_gui;
-						bus_structure = block.form_bus_structure('source');
-					else:
-						get_p = block.get_sinks;
-						get_p_gui = block.get_sinks_gui
-						bus_structure = block.form_bus_structure('sink');
-				
-					if 'bus' in map(lambda a: a.get_type(), get_p_gui()):
-					
-				       		
-						
-						if len(get_p_gui()) > len(bus_structure):
-							times = range(len(bus_structure), len(get_p_gui()));
-							for i in times:
-								for connect in get_p_gui()[-1].get_connections():
-									block.get_parent().remove_element(connect);
-								get_p().remove(get_p_gui()[-1]);
-						elif len(get_p_gui()) < len(bus_structure):
-							n = {'name':'bus','type':'bus'};
-							if True in map(lambda a: isinstance(a.get_nports(), int), get_p()):
-								n['nports'] = str(1);
-							
-							times = range(len(get_p_gui()), len(bus_structure));	
-							
-	       						for i in times:
-								n['key'] = str(len(get_p()));
-								n = odict(n);
-								port = block.get_parent().get_parent().Port(block=block, n=n, dir=direc);
-								get_p().append(port);
-								
-								
-								
-		for child in self.get_children(): child.rewrite()
-		refactor_bus_structure();
-		
+    def __str__(self): return 'FlowGraph - %s(%s)'%(self.get_option('title'), self.get_option('id'))
+    def rewrite(self):
+        def refactor_bus_structure():
+            
+            for block in self.get_blocks():
+                for direc in ['source', 'sink']:
+                    if direc == 'source':
+                        get_p = block.get_sources;
+                        get_p_gui = block.get_sources_gui;
+                        bus_structure = block.form_bus_structure('source');
+                    else:
+                        get_p = block.get_sinks;
+                        get_p_gui = block.get_sinks_gui
+                        bus_structure = block.form_bus_structure('sink');
+                
+                    if 'bus' in map(lambda a: a.get_type(), get_p_gui()):
+                    
+                            
+                        
+                        if len(get_p_gui()) > len(bus_structure):
+                            times = range(len(bus_structure), len(get_p_gui()));
+                            for i in times:
+                                for connect in get_p_gui()[-1].get_connections():
+                                    block.get_parent().remove_element(connect);
+                                get_p().remove(get_p_gui()[-1]);
+                        elif len(get_p_gui()) < len(bus_structure):
+                            n = {'name':'bus','type':'bus'};
+                            if True in map(lambda a: isinstance(a.get_nports(), int), get_p()):
+                                n['nports'] = str(1);
+                            
+                            times = range(len(get_p_gui()), len(bus_structure));    
+                            
+                            for i in times:
+                                n['key'] = str(len(get_p()));
+                                n = odict(n);
+                                port = block.get_parent().get_parent().Port(block=block, n=n, dir=direc);
+                                get_p().append(port);
+                                
+                                
+                                
+        for child in self.get_children(): child.rewrite()
+        refactor_bus_structure();
 
-	def get_option(self, key):
-		"""
-		Get the option for a given key.
-		The option comes from the special options block.
-		
-		Args:
-		    key: the param key for the options block
-		
-		Returns:
-		    the value held by that param
-		"""
-		return self._options_block.get_param(key).get_evaluated()
+    def get_option(self, key):
+        """
+        Get the option for a given key.
+        The option comes from the special options block.
+        
+        Args:
+            key: the param key for the options block
+        
+        Returns:
+            the value held by that param
+        """
+        return self._options_block.get_param(key).get_evaluated()
 
-	def is_flow_graph(self): return True
+    def is_flow_graph(self): return True
 
-	##############################################
-	## Access Elements
-	##############################################
-	def get_block(self, id): return filter(lambda b: b.get_id() == id, self.get_blocks())[0]
-	def get_blocks_unordered(self): return filter(lambda e: e.is_block(), self.get_elements())
-	def get_blocks(self):
-		blocks = self.get_blocks_unordered();
-		for i in range(len(blocks)):
-			if blocks[i].get_key() == 'variable':
-				blk = blocks[i];
-				blocks.remove(blk);
-				blocks.insert(1, blk);
-		return blocks;
-	def get_connections(self): return filter(lambda e: e.is_connection(), self.get_elements())
-	def get_children(self): return self.get_elements()
-	def get_elements(self):
-		"""
-		Get a list of all the elements.
-		Always ensure that the options block is in the list (only once).
-		
-		Returns:
-		    the element list
-		"""
-		options_block_count = self._elements.count(self._options_block)
-		if not options_block_count:
-			self._elements.append(self._options_block)
-		for i in range(options_block_count-1):
-			self._elements.remove(self._options_block)
-		return self._elements
+    ##############################################
+    ## Access Elements
+    ##############################################
+    def get_block(self, id): return filter(lambda b: b.get_id() == id, self.get_blocks())[0]
+    def get_blocks_unordered(self): return filter(lambda e: e.is_block(), self.get_elements())
+    def get_blocks(self):
+        blocks = self.get_blocks_unordered();
+        for i in range(len(blocks)):
+            if blocks[i].get_key() == 'variable':
+                blk = blocks[i];
+                blocks.remove(blk);
+                blocks.insert(1, blk);
+        return blocks;
+    def get_connections(self): return filter(lambda e: e.is_connection(), self.get_elements())
+    def get_children(self): return self.get_elements()
+    def get_elements(self):
+        """
+        Get a list of all the elements.
+        Always ensure that the options block is in the list (only once).
+        
+        Returns:
+            the element list
+        """
+        options_block_count = self._elements.count(self._options_block)
+        if not options_block_count:
+            self._elements.append(self._options_block)
+        for i in range(options_block_count-1):
+            self._elements.remove(self._options_block)
+        return self._elements
 
-	def get_enabled_blocks(self):
-		"""
-		Get a list of all blocks that are enabled.
-		
-		Returns:
-		    a list of blocks
-		"""
-		return filter(lambda b: b.get_enabled(), self.get_blocks())
+    def get_enabled_blocks(self):
+        """
+        Get a list of all blocks that are enabled.
+        
+        Returns:
+            a list of blocks
+        """
+        return filter(lambda b: b.get_enabled(), self.get_blocks())
 
-	def get_enabled_connections(self):
-		"""
-		Get a list of all connections that are enabled.
-		
-		Returns:
-		    a list of connections
-		"""
-		return filter(lambda c: c.get_enabled(), self.get_connections())
+    def get_enabled_connections(self):
+        """
+        Get a list of all connections that are enabled.
+        
+        Returns:
+            a list of connections
+        """
+        return filter(lambda c: c.get_enabled(), self.get_connections())
 
-	def get_new_block(self, key):
-		"""
-		Get a new block of the specified key.
-		Add the block to the list of elements.
-		
-		Args:
-		    key: the block key
-		
-		Returns:
-		    the new block or None if not found
-		"""
-	
-		if key not in self.get_parent().get_block_keys(): return None
-		block = self.get_parent().get_new_block(self, key)
-		self.get_elements().append(block);
-		if block._bussify_sink:
-			block.bussify({'name':'bus','type':'bus'}, 'sink')
-		if block._bussify_source:
-			block.bussify({'name':'bus','type':'bus'}, 'source')
-		return block;
+    def get_new_block(self, key):
+        """
+        Get a new block of the specified key.
+        Add the block to the list of elements.
+        
+        Args:
+            key: the block key
+        
+        Returns:
+            the new block or None if not found
+        """
+        if key not in self.get_parent().get_block_keys(): return None
+        block = self.get_parent().get_new_block(self, key)
+        self.get_elements().append(block);
+        if block._bussify_sink:
+            block.bussify({'name':'bus','type':'bus'}, 'sink')
+        if block._bussify_source:
+            block.bussify({'name':'bus','type':'bus'}, 'source')
+        return block;
 
-	def connect(self, porta, portb):
-		"""
-		Create a connection between porta and portb.
-		
-		Args:
-		    porta: a port
-		    portb: another port
-		@throw Exception bad connection
-		
-		Returns:
-		    the new connection
-		"""
-		
-		connection = self.get_parent().Connection(flow_graph=self, porta=porta, portb=portb)
-		
-		
-		self.get_elements().append(connection)
-		return connection
+    def connect(self, porta, portb):
+        """
+        Create a connection between porta and portb.
+        
+        Args:
+            porta: a port
+            portb: another port
+        @throw Exception bad connection
+        
+        Returns:
+            the new connection
+        """
+        connection = self.get_parent().Connection(flow_graph=self, porta=porta, portb=portb)
+        self.get_elements().append(connection)
+        return connection
 
-	def remove_element(self, element):
-		"""
-		Remove the element from the list of elements.
-		If the element is a port, remove the whole block.
-		If the element is a block, remove its connections.
-		If the element is a connection, just remove the connection.
-		"""
+    def remove_element(self, element):
+        """
+        Remove the element from the list of elements.
+        If the element is a port, remove the whole block.
+        If the element is a block, remove its connections.
+        If the element is a connection, just remove the connection.
+        """
+        if element not in self.get_elements(): return
+        #found a port, set to parent signal block
+        if element.is_port():
+            element = element.get_parent()
+        #remove block, remove all involved connections
+        if element.is_block():
+            for port in element.get_ports():
+                map(self.remove_element, port.get_connections())
+        if element.is_connection():
+            if element.is_bus():
+                cons_list = []
+                for i in map(lambda a: a.get_connections(), element.get_source().get_associated_ports()):
+                    cons_list.extend(i);
+                map(self.remove_element, cons_list);
+        self.get_elements().remove(element)
 
-		if element not in self.get_elements(): return
-		#found a port, set to parent signal block
-		if element.is_port():
-			element = element.get_parent()
-		#remove block, remove all involved connections
-		if element.is_block():
-			for port in element.get_ports():
-				map(self.remove_element, port.get_connections())
-		if element.is_connection():
-			if element.is_bus():
-				cons_list = []
-				for i in map(lambda a: a.get_connections(), element.get_source().get_associated_ports()):
-					cons_list.extend(i);
-				map(self.remove_element, cons_list);
-		self.get_elements().remove(element)
-		
+    def evaluate(self, expr):
+        """
+        Evaluate the expression.
+        
+        Args:
+            expr: the string expression
+        @throw NotImplementedError
+        """
+        raise NotImplementedError
 
-	def evaluate(self, expr):
-		"""
-		Evaluate the expression.
-		
-		Args:
-		    expr: the string expression
-		@throw NotImplementedError
-		"""
-		raise NotImplementedError
+    ##############################################
+    ## Import/Export Methods
+    ##############################################
+    def export_data(self):
+        """
+        Export this flow graph to nested data.
+        Export all block and connection data.
+        
+        Returns:
+            a nested data odict
+        """
+        import time
+        n = odict()
+        n['timestamp'] = time.ctime()
+        n['block'] = [block.export_data() for block in self.get_blocks()]
+        n['connection'] = [connection.export_data() for connection in self.get_connections()]
+        return odict({'flow_graph': n})
 
-	##############################################
-	## Import/Export Methods
-	##############################################
-	def export_data(self):
-		"""
-		Export this flow graph to nested data.
-		Export all block and connection data.
-		
-		Returns:
-		    a nested data odict
-		"""
-		import time
-		n = odict()
-		n['timestamp'] = time.ctime()
-		n['block'] = [block.export_data() for block in self.get_blocks()]
-		n['connection'] = [connection.export_data() for connection in self.get_connections()]
-		return odict({'flow_graph': n})
-
-	def import_data(self, n=None):
-		"""
-		Import blocks and connections into this flow graph.
-		Clear this flowgraph of all previous blocks and connections.
-		Any blocks or connections in error will be ignored.
-		
-		Args:
-		    n: the nested data odict
-		"""
-		#remove previous elements
-		self._elements = list()
-		#use blank data if none provided
-		fg_n = n and n.find('flow_graph') or odict()
-		blocks_n = fg_n.findall('block')
-		connections_n = fg_n.findall('connection')
-		#create option block
-		self._options_block = self.get_parent().get_new_block(self, 'options')
-		#build the blocks
-		for block_n in blocks_n:
-			key = block_n.find('key')
-			if key == 'options': block = self._options_block
-			else: block = self.get_new_block(key)
-			#only load the block when the block key was valid
-			if block: block.import_data(block_n)
-			else: Messages.send_error_load('Block key "%s" not found in %s'%(key, self.get_parent()))
-			
-		#build the connections
-		for connection_n in connections_n:
-			#try to make the connection
-			try:
-				#get the block ids
-				source_block_id = connection_n.find('source_block_id')
-				sink_block_id = connection_n.find('sink_block_id')
-				#get the port keys
-				source_key = connection_n.find('source_key')
-				sink_key = connection_n.find('sink_key')
-				#verify the blocks
-				block_ids = map(lambda b: b.get_id(), self.get_blocks())
-				if source_block_id not in block_ids:
-					raise LookupError('source block id "%s" not in block ids'%source_block_id)
-				if sink_block_id not in block_ids:
-					raise LookupError('sink block id "%s" not in block ids'%sink_block_id)
-				#get the blocks
-				source_block = self.get_block(source_block_id)
-				sink_block = self.get_block(sink_block_id)
-				#verify the ports
-				if source_key not in source_block.get_source_keys():
-					raise LookupError('source key "%s" not in source block keys'%source_key)
-				if sink_key not in sink_block.get_sink_keys():
-					raise LookupError('sink key "%s" not in sink block keys'%sink_key)
-				#get the ports
-				source = source_block.get_source(source_key)
-				sink = sink_block.get_sink(sink_key)
-				#build the connection
-				self.connect(source, sink)
-			except LookupError, e: Messages.send_error_load(
-				'Connection between %s(%s) and %s(%s) could not be made.\n\t%s'%(
-					source_block_id, source_key, sink_block_id, sink_key, e
-				)
-			)
-		self.rewrite() #global rewrite
+    def import_data(self, n=None):
+        """
+        Import blocks and connections into this flow graph.
+        Clear this flowgraph of all previous blocks and connections.
+        Any blocks or connections in error will be ignored.
+        
+        Args:
+            n: the nested data odict
+        """
+        #remove previous elements
+        self._elements = list()
+        #use blank data if none provided
+        fg_n = n and n.find('flow_graph') or odict()
+        blocks_n = fg_n.findall('block')
+        connections_n = fg_n.findall('connection')
+        #create option block
+        self._options_block = self.get_parent().get_new_block(self, 'options')
+        #build the blocks
+        for block_n in blocks_n:
+            key = block_n.find('key')
+            if key == 'options': block = self._options_block
+            else: block = self.get_new_block(key)
+            #only load the block when the block key was valid
+            if block: block.import_data(block_n)
+            else: Messages.send_error_load('Block key "%s" not found in %s'%(key, self.get_parent()))
+        #build the connections
+        for connection_n in connections_n:
+            #try to make the connection
+            try:
+                #get the block ids
+                source_block_id = connection_n.find('source_block_id')
+                sink_block_id = connection_n.find('sink_block_id')
+                #get the port keys
+                source_key = connection_n.find('source_key')
+                sink_key = connection_n.find('sink_key')
+                #verify the blocks
+                block_ids = map(lambda b: b.get_id(), self.get_blocks())
+                if source_block_id not in block_ids:
+                    raise LookupError('source block id "%s" not in block ids'%source_block_id)
+                if sink_block_id not in block_ids:
+                    raise LookupError('sink block id "%s" not in block ids'%sink_block_id)
+                #get the blocks
+                source_block = self.get_block(source_block_id)
+                sink_block = self.get_block(sink_block_id)
+                #verify the ports
+                if source_key not in source_block.get_source_keys():
+                    raise LookupError('source key "%s" not in source block keys'%source_key)
+                if sink_key not in sink_block.get_sink_keys():
+                    raise LookupError('sink key "%s" not in sink block keys'%sink_key)
+                #get the ports
+                source = source_block.get_source(source_key)
+                sink = sink_block.get_sink(sink_key)
+                #build the connection
+                self.connect(source, sink)
+            except LookupError, e: Messages.send_error_load(
+                'Connection between %s(%s) and %s(%s) could not be made.\n\t%s'%(
+                    source_block_id, source_key, sink_block_id, sink_key, e
+                )
+            )
+        self.rewrite() #global rewrite
-- 
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