gui: parameter list update

artiq/gui/parameters.py

@@ -1,6 +1,44 @@
+import asyncio
+from operator import itemgetter
+
 from gi.repository import Gtk
 
 from artiq.gui.tools import Window
+from artiq.management.sync_struct import Subscriber
+
+
+class _ParameterStoreSyncer:
+    def __init__(self, parameters_store, init):
+        self.parameters_store = parameters_store
+        self.parameters_store.clear()
+        for name, value in sorted(init.items(), key=itemgetter(0)):
+            self.parameters_store.append(self._convert(name, value))
+
+    def _convert(self, name, value):
+        return [name, str(value)]
+
+    def _find_index(self, name):
+        for i, e in enumerate(self.parameters_store):
+            if e[0] == name:
+                return i
+        raise KeyError
+
+    def __setitem__(self, name, value):
+        try:
+            i = self._find_index(name)
+        except KeyError:
+            pass
+        else:
+            del self.parameters_store[i]
+        j = len(self.parameters_store)
+        for i, e in enumerate(self.parameters_store):
+            if e[0] > name:
+                j = i
+                break
+        self.parameters_store.insert(j, self._convert(name, value))
+
+    def __delitem__(self, key):
+        del self.parameters_store[self._find_index(key)]
 
 
 class ParametersWindow(Window):
@@ -17,3 +55,16 @@ class ParametersWindow(Window):
         scroll = Gtk.ScrolledWindow()
         scroll.add(tree)
         self.add(scroll)
+
+    @asyncio.coroutine
+    def sub_connect(self, host, port):
+        self.parameters_subscriber = Subscriber("parameters",
+                                                self.init_parameters_store)
+        yield from self.parameters_subscriber.connect(host, port)
+
+    @asyncio.coroutine
+    def sub_close(self):
+        yield from self.parameters_subscriber.close()
+
+    def init_parameters_store(self, init):
+        return _ParameterStoreSyncer(self.parameters_store, init)

frontend/artiq_gui.py

@@ -2,6 +2,7 @@
 
 import argparse
 import asyncio
+import atexit
 
 import gbulb
 from gi.repository import Gtk
@@ -29,7 +30,8 @@ def main():
 
     asyncio.set_event_loop_policy(gbulb.GtkEventLoopPolicy())
     loop = asyncio.get_event_loop()
-    try:
+    atexit.register(lambda: loop.close())
+
     scheduler_win = SchedulerWindow()
     scheduler_win.connect("delete-event", Gtk.main_quit)
     scheduler_win.show_all()
@@ -40,12 +42,15 @@ def main():
 
     loop.run_until_complete(scheduler_win.sub_connect(
         args.server, args.port_notify))
-        try:
+    atexit.register(
+        lambda: loop.run_until_complete(scheduler_win.sub_close()))
+
+    loop.run_until_complete(parameters_win.sub_connect(
+        args.server, args.port_notify))
+    atexit.register(
+        lambda: loop.run_until_complete(parameters_win.sub_close()))
+
     loop.run_forever()
-        finally:
-            loop.run_until_complete(scheduler_win.sub_close())
-    finally:
-        loop.close()
 
 if __name__ == "__main__":
     main()