The active plot is now more visible.

system/plots.py

@@ -67,7 +67,21 @@ class ViewFrame (gtk.Frame):
         self.view_frames = view_frames
         self.empty_view = EmptyView()
         self._button_event = None
-        
+
+        ## Set up a VBox with a label wrapped in an event box.
+        label = gtk.Label()
+        ebox = gtk.EventBox()
+        ebox.add(label)
+        vbox = gtk.VBox()
+        vbox.pack_start(ebox, expand=False)
+        vbox.pack_start(gtk.HSeparator(), expand=False)
+
+        ## Keep the references for later use.
+        self._vbox = vbox
+        self._ebox = ebox
+        self._view_title = label
+        self.add(vbox)
+                
         view_frames.append(self)
         if len(view_frames) == 1:
             self.focus()
@@ -84,9 +98,10 @@ class ViewFrame (gtk.Frame):
         # Set view
         self._view = self.empty_view
         self._view.connect("button-press-event", self.on_button_press_event)
-        self.add(self._view)
+        self._vbox.add(self._view)
+        self._view_title.set_text(self._view.title)
+        self.show_all()
         self._view.show()
-        self.show()
 
     def focus(self):
         """Gets focus and ensures that no other window is in focus."""
@@ -98,6 +113,7 @@ class ViewFrame (gtk.Frame):
             frame.unfocus()
 
         self.set_shadow_type(gtk.SHADOW_IN)
+        self._ebox.set_state(gtk.STATE_ACTIVE)
         self.focused = True
         self.emit('focus-changed', self, True)
         return self
@@ -108,6 +124,7 @@ class ViewFrame (gtk.Frame):
             return
 
         self.set_shadow_type(gtk.SHADOW_OUT)
+        self._ebox.set_state(gtk.STATE_NORMAL)
         self.focused = False
         self.emit('focus-changed', self, False)
 
@@ -123,9 +140,8 @@ class ViewFrame (gtk.Frame):
             return
         
         # detach view from current parent
-        view_parent = view.get_parent()
+        if view._view_frame:
-        if view_parent:
+            view._view_frame.set_view(None)
-            view_parent.set_view(None)
 
         # switch which widget we are listening to
         if self._button_event:
@@ -135,11 +151,16 @@ class ViewFrame (gtk.Frame):
                                           self.on_button_press_event)
 
         # remove old view, set new view
-        self._view.hide()
+        if self._view:
-        self.remove(self._view)
+            self._view.hide()
-        self.add(view)
+            self._vbox.remove(self._view)
+            self._view._view_frame = None
+
+        self._view_title.set_text(view.title)
+        self._vbox.add(view)
         view.show()
         
+        view._view_frame = self
         self._view = view
 
     def get_view(self):
@@ -262,7 +283,7 @@ class View (gtk.Frame):
         gtk.Frame.__init__(self)
         self.title = title
         self.set_shadow_type(gtk.SHADOW_NONE)
-        self.set_label(title)
+        self._view_frame = None
 
     def get_toolbar(self):
         return None
@@ -294,11 +315,12 @@ class Plot (View):
         self._toolbar = PlotToolbar(self)
         self.canvas.add_events(gtk.gdk.ENTER_NOTIFY_MASK)
         self.current_dim = None
+        self._current_selection = None
 
     def set_frozen(self, frozen):
         """A frozen plot will not be updated when the current selection is changed."""
         self._frozen = frozen
-        if not frozen:
+        if not frozen and self._current_selection != None:
             self.set_current_selection(self._current_selection)
     
     def get_title(self):
@@ -316,13 +338,12 @@ class Plot (View):
         3.) the selections dim_name is the plot's dimension.
         """
         
+        self._current_selection = selection
         if self._frozen \
                or not self.get_property('visible') \
                or self.current_dim != dim_name:
             return
-        else:
+
-            self._current_selection = selection
-        
         self.set_current_selection(selection)
 
     def set_selection_listener(self, listener):
@@ -726,10 +747,6 @@ class DefaultPlotMode (PlotMode):
     def __init__(self, plot):
         PlotMode.__init__(self, plot, 'default', 'Default mode', 'cursor.png')
 
-    def activate(self):
-        for k, v in self.canvas.callbacks.items():
-            print k, v
-
 
 class PanPlotMode (PlotMode):
     def __init__(self, plot):