ttk.Notebook for tabbed display of multiple Presenters

The system is slightly hacky, because the Presenter is not independent from the
main window - indeed, it knows that it has to place itself in a root's notebook
as opposed to *being* placed by the Main object. It's a fairly simple mechanism
though: the root constructs a ttk.Notebook, builds a Presenter and orders it to
place itself in a given tab - the Presenter knows that it is supposed to occupy
a single whole tab (and there will be nothing else besides it in it), so it can
grid itself simply at (0,0). Then it just calls `add` on the root's notebook to
create the tab.
By the way, the Main window construction was slightly refactored: "__construct"
does not make much sense now that everything is built by the child objects, and
the only thing Main does besides providing space for them is building a control
panel.

fw-local/gui.py

@@ -121,29 +121,38 @@ class Main(object):
 
   def __init__(self):
     self.root = root = tk.Tk()
-    #prepare the components
-    self.loginHandler = Login(self.root)
-    #prepare the window
     root.title('FW local')
-    root.resizable(False, False)
-    self.__construct()
+    #construct the window: first the notebook for tabbed view
+    self.notebook = ttk.Notebook(root)
+    self.notebook.grid(row=0, column=0, padx=5, pady=5, sticky=tk.NW)
+    #control panel
+    frame = tk.Frame(root)
+    frame.grid(row=1, column=0, padx=5, pady=5, sticky=tk.SW)
+    ttk.Button(frame, text='Aktualizuj', command=self._updateData).grid(row=0, column=0, sticky=tk.SW)
+    ttk.Button(frame, text='PRZEŁADUJ!', command=self._reloadData).grid(row=0, column=1, sticky=tk.SW)
+    self.progressVar = tk.IntVar()
+    self.progressbar = ttk.Progressbar(root, orient='horizontal', length=400, mode='determinate', variable=self.progressVar)
+    self.progressbar.grid(row=1, column=0, padx=5, pady=5)
+    self._setProgress(-1) # start with the progress bar hidden
+    ttk.Button(root, text='Wyjście', command=self._quit).grid(row=1, column=0, padx=5, pady=5, sticky=tk.SE)
     #load the savefile and instantiate Presenter(s) and Database(s)
     self.databases = []
     self.presenters = []
     userdata = self.loadUserData()
     u_name = userdata['username'] if userdata else ''
     conf_m = userdata['movie_cfg'] if userdata else ''
     data_m = userdata['movie_db'] if userdata else ''
+    self.loginHandler = Login(self.root)
     self.api = FilmwebAPI(self.loginHandler.requestLogin, u_name)
     movieDatabase = Database.restoreFromString('Movie', data_m, self.api, self._setProgress)
-    moviePresenter = Presenter(root, self.api, movieDatabase, conf_m)
-    moviePresenter.grid(row=0, column=0, rowspan=3, columnspan=3, padx=5, pady=5, sticky=tk.NW)
+    moviePresenter = Presenter(self, self.api, movieDatabase, conf_m)
     moviePresenter.addFilter(filters.YearFilter, row=0, column=0, sticky=tk.NW)
     moviePresenter.addFilter(filters.RatingFilter, row=1, column=0, sticky=tk.NW)
     moviePresenter.addFilter(filters.DateFilter, row=2, column=0, sticky=tk.NW)
     moviePresenter.addFilter(filters.GenreFilter, row=0, column=1, rowspan=3, sticky=tk.NW)
     moviePresenter.addFilter(filters.CountryFilter, row=0, column=2, rowspan=3, sticky=tk.NW)
     moviePresenter.addFilter(filters.DirectorFilter, row=0, column=3, rowspan=3, sticky=tk.NW)
+    moviePresenter.placeInTab('Filmy')
     moviePresenter.totalUpdate()
     self.databases.append(movieDatabase)
     self.presenters.append(moviePresenter)
@@ -153,20 +162,10 @@ def __init__(self):
     root.protocol('WM_DELETE_WINDOW', self._quit)
     if not userdata:
       self._reloadData() # first run
+    #prevent resizing and run the app
+    root.resizable(False, False)
     tk.mainloop()
 
-  #CONSTRUCTION
-  def __construct(self):
-    #control panel
-    frame = tk.Frame(self.root)
-    ttk.Button(frame, text='Aktualizuj', command=self._updateData).grid(row=0, column=0, sticky=tk.SW)
-    ttk.Button(frame, text='PRZEŁADUJ!', command=self._reloadData).grid(row=0, column=1, sticky=tk.SW)
-    self.progressVar = tk.IntVar()
-    self.progressbar = ttk.Progressbar(self.root, orient='horizontal', length=400, mode='determinate', variable=self.progressVar)
-    self.progressbar.grid(row=4, column=1, padx=5, pady=5)
-    self._setProgress(-1) # start with the progress bar hidden
-    tk.Button(self.root, text='Wyjście', command=self._quit).grid(row=4, column=2, padx=5, pady=5, sticky=tk.SE)
-    frame.grid(row=4, column=0, padx=5, pady=5, sticky=tk.S+tk.W)
   def centerWindow(self):
     self.root.update()
     ws = self.root.winfo_screenwidth()

fw-local/presenter.py

@@ -320,7 +320,7 @@ class Presenter(object):
   """
   def __init__(self, root, api, database, config:str, displayRating=True):
     self.root = root
-    self.main = tk.Frame(root)
+    self.main = ttk.Frame(root.notebook)
     self.database = database
     self.items = []
     self.config = Config.restoreFromString(database.itemtype, config, self)
@@ -355,7 +355,7 @@ def __construct(self):
     self.stats = StatView(self.main, self.database.itemtype)
     self.stats.grid(row=0, column=2, sticky=tk.NW)
     # FILTER FRAME
-    self.fframe = tk.Frame(self.main)
+    self.fframe = ttk.Frame(self.main)
     self.fframe.grid(row=1, column=2, sticky=tk.NW)
     # store the row and col range of inserted filters to know where to place the
     # reset all button
@@ -385,12 +385,6 @@ def __placeResetAllButton(self):
   def storeToString(self):
     return self.config.storeToString()
 
-  # TK interface for GUI placement
-  def pack(self, **kw):
-    self.main.pack(**kw)
-  def grid(self, **kw):
-    self.main.grid(**kw)
-
   def addFilter(self, filter_class, **grid_args):
     filter_object = filter_class(self.fframe)
     self.filtMachine.registerFilter(filter_object)
@@ -401,6 +395,11 @@ def addFilter(self, filter_class, **grid_args):
     if grid_args['column'] > self.fframe_grid[1]:
       self.fframe_grid[1] = grid_args['column']
 
+  # take a spot in the entire Notebook tab of a given name
+  def placeInTab(self, tab):
+    self.main.grid(row=0, column=0, pady=5, padx=5)
+    self.root.notebook.add(self.main, text=tab)
+
   # Display pipeline
   # Internally, the pipeline consists of 4 steps: acquiring data from the DB,
   # filtering it using the given filters, sorting by the given criterion, and