Demos for ttk added.

Demo/tkinter/ttk/treeview_multicolumn.py

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+"""Demo based on the demo mclist included with tk source distribution."""
+import Tkinter
+import tkFont
+import ttk
+
+tree_columns = ("country", "capital", "currency")
+tree_data = [
+    ("Argentina",      "Buenos Aires",     "ARS"),
+    ("Australia",      "Canberra",         "AUD"),
+    ("Brazil",         "Brazilia",         "BRL"),
+    ("Canada",         "Ottawa",           "CAD"),
+    ("China",          "Beijing",          "CNY"),
+    ("France",         "Paris",            "EUR"),
+    ("Germany",        "Berlin",           "EUR"),
+    ("India",          "New Delhi",        "INR"),
+    ("Italy",          "Rome",             "EUR"),
+    ("Japan",          "Tokyo",            "JPY"),
+    ("Mexico",         "Mexico City",      "MXN"),
+    ("Russia",         "Moscow",           "RUB"),
+    ("South Africa",   "Pretoria",         "ZAR"),
+    ("United Kingdom", "London",           "GBP"),
+    ("United States",  "Washington, D.C.", "USD")
+    ]
+
+def sortby(tree, col, descending):
+    """Sort tree contents when a column is clicked on."""
+    # grab values to sort
+    data = [(tree.set(child, col), child) for child in tree.get_children('')]
+
+    # reorder data
+    data.sort(reverse=descending)
+    for indx, item in enumerate(data):
+        tree.move(item[1], '', indx)
+
+    # switch the heading so that it will sort in the opposite direction
+    tree.heading(col,
+        command=lambda col=col: sortby(tree, col, int(not descending)))
+
+class App(object):
+    def __init__(self):
+        self.tree = None
+        self._setup_widgets()
+        self._build_tree()
+
+    def _setup_widgets(self):
+        msg = ttk.Label(wraplength="4i", justify="left", anchor="n",
+            padding=(10, 2, 10, 6),
+            text=("Ttk is the new Tk themed widget set. One of the widgets it "
+                  "includes is a tree widget, which can be configured to "
+                  "display multiple columns of informational data without "
+                  "displaying the tree itself. This is a simple way to build "
+                  "a listbox that has multiple columns. Clicking on the "
+                  "heading for a column will sort the data by that column. "
+                  "You can also change the width of the columns by dragging "
+                  "the boundary between them."))
+        msg.pack(fill='x')
+
+        container = ttk.Frame()
+        container.pack(fill='both', expand=True)
+
+        # XXX Sounds like a good support class would be one for constructing
+        #     a treeview with scrollbars.
+        self.tree = ttk.Treeview(columns=tree_columns, show="headings")
+        vsb = ttk.Scrollbar(orient="vertical", command=self.tree.yview)
+        hsb = ttk.Scrollbar(orient="horizontal", command=self.tree.xview)
+        self.tree.configure(yscrollcommand=vsb.set, xscrollcommand=hsb.set)
+        self.tree.grid(column=0, row=0, sticky='nsew', in_=container)
+        vsb.grid(column=1, row=0, sticky='ns', in_=container)
+        hsb.grid(column=0, row=1, sticky='ew', in_=container)
+
+        container.grid_columnconfigure(0, weight=1)
+        container.grid_rowconfigure(0, weight=1)
+
+    def _build_tree(self):
+        for col in tree_columns:
+            self.tree.heading(col, text=col.title(),
+                command=lambda c=col: sortby(self.tree, c, 0))
+            # XXX tkFont.Font().measure expected args are incorrect according
+            #     to the Tk docs
+            self.tree.column(col, width=tkFont.Font().measure(col.title()))
+
+        for item in tree_data:
+            self.tree.insert('', 'end', values=item)
+
+            # adjust columns lenghts if necessary
+            for indx, val in enumerate(item):
+                ilen = tkFont.Font().measure(val)
+                if self.tree.column(tree_columns[indx], width=None) < ilen:
+                    self.tree.column(tree_columns[indx], width=ilen)
+
+def main():
+    root = Tkinter.Tk()
+    root.wm_title("Multi-Column List")
+    root.wm_iconname("mclist")
+
+    import plastik_theme
+    try:
+        plastik_theme.install('~/tile-themes/plastik/plastik')
+    except Exception:
+        import warnings
+        warnings.warn("plastik theme being used without images")
+
+    app = App()
+    root.mainloop()
+
+if __name__ == "__main__":
+    main()