[databrwoser] close data when widget is closed

src/audian/audian.py

@@ -1307,8 +1307,11 @@ def close(self, index=None):
             if index is None:
                 index = self.tabs.currentIndex()
             if not self.startup_active:
-                self.browsers.remove(self.tabs.widget(index))
+                w = self.tabs.widget(index)
+                self.browsers.remove(w)
                 self.tabs.removeTab(index)
+                w.close()
+                del w
         if self.tabs.count() == 0:
             self.tabs.addTab(self.startup, 'Startup')
             self.startup.setVisible(True)

src/audian/data.py

@@ -44,10 +44,9 @@ def clear_traces(self):
 
 
     def __del__(self):
-        if not self.data is None:
-            self.data.close()
-
+        self.close()
 
+
     def __len__(self):
         return len(self.traces)
 
@@ -196,6 +195,12 @@ def open(self, unwrap, unwrap_clip):
             trace.open(self.traces[source])
         self.set_need_update()
 
+
+    def close(self):
+        if not self.data is None:
+            self.data.close()
+            self.data = None
+
 
     def set_need_update(self):
         if self.data is None:

src/audian/databrowser.py

@@ -629,6 +629,10 @@ def open(self, gui, unwrap, unwrap_clip, highpass_cutoff, lowpass_cutoff):
                 else:
                     sl[lidx].addPoints((t1,), (0.0,), data=(ds,), tip=marker_tip)
 
+
+    def close(self):
+        self.data.close()
+
 
     def show_metadata(self):