grc: better handling of disabled elements

git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@10403 221aa14e-8319-0410-a670-987f0aec2ac5

1 files changed, 7 insertions, 9 deletions

diff --git a/grc/src/platforms/python/Port.py b/grc/src/platforms/python/Port.py
index e75b47e4b..73ec07242 100644
--- a/grc/src/platforms/python/Port.py
+++ b/grc/src/platforms/python/Port.py
@@ -46,6 +46,13 @@ class Port(_Port):
 		self._vlen = vlen
 		self._optional = bool(optional)
 
+	def validate(self):
+		_Port.validate(self)
+		try: assert(self.get_enabled_connections() or self.get_optional())
+		except AssertionError: self._add_error_message('Port is not connected.')
+		try: assert(self.is_source() or len(self.get_enabled_connections()) == 1)
+		except AssertionError: self._add_error_message('Port has too many connections.')
+
 	def get_vlen(self):
 		"""
 		Get the vector length.
@@ -98,15 +105,6 @@ class Port(_Port):
 			}[self.get_type()]
 		except: return _Port.get_color(self)
 
-	def is_empty(self):
-		"""
-		Is this port empty?
-		An empty port has no connections.
-		Not empty of optional is set.
-		@return true if empty
-		"""
-		return not self.get_optional() and not self.get_connections()
-
 class Source(Port):
 
 	def __init__(self, block, n):