From d3d62764237a2834a8a4eb54934afba8c63999d9 Mon Sep 17 00:00:00 2001
From: jblum <jblum@221aa14e-8319-0410-a670-987f0aec2ac5>
Date: Thu, 12 Feb 2009 19:47:23 +0000
Subject: [PATCH] port and type controller modify logic out of gui

git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@10442 221aa14e-8319-0410-a670-987f0aec2ac5
---
 grc/src/platforms/base/Block.py    | 36 +++++++++++++++++++++++++
 grc/src/platforms/gui/FlowGraph.py | 43 +++---------------------------
 grc/src/platforms/python/Block.py  | 22 +++++++++++++++
 3 files changed, 62 insertions(+), 39 deletions(-)

diff --git a/grc/src/platforms/base/Block.py b/grc/src/platforms/base/Block.py
index 8cbcad5a..bc9b58a5 100644
--- a/grc/src/platforms/base/Block.py
+++ b/grc/src/platforms/base/Block.py
@@ -195,6 +195,42 @@ class Block(Element):
 		try: return str(Template(tmpl, n))
 		except Exception, e: return "-------->\n%s: %s\n<--------"%(e, tmpl)
 
+	##############################################
+	# Controller Modify
+	##############################################
+	def type_controller_modify(self, direction):
+		"""
+		Change the type controller.
+		@param direction +1 or -1
+		@return true for change
+		"""
+		changed = False
+		type_param = None
+		for param in filter(lambda p: p.is_enum(), self.get_params()):
+			children = self.get_ports() + self.get_params()
+			#priority to the type controller
+			if param.get_key() in ' '.join(map(lambda p: p._type, children)): type_param = param
+			#use param if type param is unset
+			if not type_param: type_param = param
+		if type_param:
+			#try to increment the enum by direction
+			try:
+				keys = type_param.get_option_keys()
+				old_index = keys.index(type_param.get_value())
+				new_index = (old_index + direction + len(keys))%len(keys)
+				type_param.set_value(keys[new_index])
+				changed = True
+			except: pass
+		return changed
+
+	def port_controller_modify(self, direction):
+		"""
+		Change the port controller.
+		@param direction +1 or -1
+		@return true for change
+		"""
+		return False
+
 	##############################################
 	## Import/Export Methods
 	##############################################
diff --git a/grc/src/platforms/gui/FlowGraph.py b/grc/src/platforms/gui/FlowGraph.py
index 546bdf45..cc2e2716 100644
--- a/grc/src/platforms/gui/FlowGraph.py
+++ b/grc/src/platforms/gui/FlowGraph.py
@@ -176,25 +176,7 @@ class FlowGraph(Element):
 		@param direction +1 or -1
 		@return true for change
 		"""
-		changed = False
-		for selected_block in self.get_selected_blocks():
-			type_param = None
-			for param in filter(lambda p: p.is_enum(), selected_block.get_params()):
-				children = param.get_parent().get_ports() + param.get_parent().get_params()
-				#priority to the type controller
-				if param.get_key() in ' '.join(map(lambda p: p._type, children)): type_param = param
-				#use param if type param is unset
-				if not type_param: type_param = param
-			if type_param:
-				#try to increment the enum by direction
-				try:
-					keys = type_param.get_option_keys()
-					old_index = keys.index(type_param.get_value())
-					new_index = (old_index + direction + len(keys))%len(keys)
-					type_param.set_value(keys[new_index])
-					changed = True
-				except: pass
-		return changed
+		return any([sb.type_controller_modify(direction) for sb in self.get_selected_blocks()])
 
 	def port_controller_modify_selected(self, direction):
 		"""
@@ -202,32 +184,15 @@ class FlowGraph(Element):
 		@param direction +1 or -1
 		@return true for changed
 		"""
-		changed = False
-		for selected_block in self.get_selected_blocks():
-			for ports in (selected_block.get_sinks(), selected_block.get_sources()):
-				if ports and hasattr(ports[0], 'get_nports') and ports[0].get_nports():
-					#find the param that controls port0
-					for param in selected_block.get_params():
-						if param.get_key() in ports[0]._nports:
-							#try to increment the port controller by direction
-							try:
-								value = param.evaluate()
-								value = value + direction
-								assert 0 < value
-								param.set_value(value)
-								changed = True
-							except: pass
-		return changed
+		return any([sb.port_controller_modify(direction) for sb in self.get_selected_blocks()])
 
 	def param_modify_selected(self):
 		"""
 		Create and show a param modification dialog for the selected block.
 		@return true if parameters were changed
 		"""
-		if self.get_selected_block():
-			signal_block_params_dialog = ParamsDialog(self.get_selected_block())
-			return signal_block_params_dialog.run()
-		return False
+		if not self.get_selected_block(): return False
+		return ParamsDialog(self.get_selected_block()).run()
 
 	def enable_selected(self, enable):
 		"""
diff --git a/grc/src/platforms/python/Block.py b/grc/src/platforms/python/Block.py
index 91b86cc8..3c45117a 100644
--- a/grc/src/platforms/python/Block.py
+++ b/grc/src/platforms/python/Block.py
@@ -104,6 +104,28 @@ class Block(_Block):
 					ports[key] = port
 				continue
 
+	def port_controller_modify(self, direction):
+		"""
+		Change the port controller.
+		@param direction +1 or -1
+		@return true for change
+		"""
+		changed = False
+		for ports in (self.get_sinks(), self.get_sources()):
+			if ports and ports[0].get_nports():
+				#find the param that controls port0
+				for param in self.get_params():
+					if not param.is_enum() and param.get_key() in ports[0]._nports:
+						#try to increment the port controller by direction
+						try:
+							value = param.evaluate()
+							value = value + direction
+							assert 0 < value
+							param.set_value(value)
+							changed = True
+						except: pass
+		return changed
+
 	def get_doc(self):
 		doc = self._doc.strip('\n').replace('\\\n', '')
 		#merge custom doc with doxygen docs
-- 
2.30.2