Fix Catia showing duplicate alsa ports when jack is stopped

README.md

@@ -3,7 +3,7 @@
 Cadence is a set of tools useful for audio production. <br/>
 It's being developed by falkTX, using Python and Qt (and some C++ where needed).
 
-The tools share the same base source code, so most of them look quite similar (which is intentional).
+The tools share the same base source code, so most of them look quite similar (which is intentional). <br/>
 Also, lots of custom widgets were coded when needed (like pixmapdial, pixmapkeyboard, patchcanvas and systray). <br/>
 They can be re-used in other projects. Contact the author if you need help on that.
 
@@ -35,7 +35,7 @@ Tool to record (or 'render') a JACK project using jack-capture, controlled by JA
 It supports a vast number of file types and can render in both realtime and freewheel modes.
 
 ### [Cadence-XY Controller](http://kxstudio.sourceforge.net/KXStudio:Applications:Cadence-XYController)
-simple XY widget that sends and receives data from Jack MIDI. <br/>
+Simple XY widget that sends and receives data from Jack MIDI. <br/>
 It can send data through specific channels and has a MIDI Keyboard too.
 
 ### [Catarina](http://kxstudio.sourceforge.net/KXStudio:Applications:Catarina)

src/catia.py

@@ -140,7 +140,8 @@ class CatiaMainW(QMainWindow, ui_catia.Ui_CatiaMainW):
         patchcanvas.init("Catia", self.scene, self.canvasCallback, DEBUG)
 
         # Try to connect to jack
-        self.jackStarted()
+        if self.jackStarted():
+            self.init_alsa_ports()
 
         # DBus checks
         if haveDBus:
@@ -174,8 +175,6 @@ class CatiaMainW(QMainWindow, ui_catia.Ui_CatiaMainW):
             self.act_tools_a2j_export_hw.setEnabled(False)
             self.menu_A2J_Bridge.setEnabled(False)
 
-        self.init_alsa_ports()
-
         self.m_timer120 = self.startTimer(self.m_savedSettings["Main/RefreshInterval"])
         self.m_timer600 = self.startTimer(self.m_savedSettings["Main/RefreshInterval"] * 5)
 
@@ -846,7 +845,8 @@ class CatiaMainW(QMainWindow, ui_catia.Ui_CatiaMainW):
         if not jack.client:
             jack.client = jacklib.client_open("catia", jacklib.JackNoStartServer | jacklib.JackSessionID, None)
             if not jack.client:
-                return self.jackStopped()
+                self.jackStopped()
+                return False
 
         self.act_jack_render.setEnabled(canRender)
         self.b_jack_render.setEnabled(canRender)
@@ -863,6 +863,8 @@ class CatiaMainW(QMainWindow, ui_catia.Ui_CatiaMainW):
 
         self.init_jack()
 
+        return True
+
     def jackStopped(self):
         if haveDBus:
             self.DBusReconnect()