Das Eingabefeld unten zeigt die entsprechenden Städte richtig mit Bundesland an (Doppelklick oder Enter-Taste). Daraus schließe ich, dass das Vergeben der tags richtig funktioniert, es hat nur nicht die Wirkung, für die tag_configure eigentlich sorgen sollte.
Code: Alles auswählen
#!/usr/bin/env python3
# treeview_forum.py
"""Treeview-Komponente erforschen"""
import tkinter as tk
from tkinter import ttk
CITIES = [
"1,Frankfurt,HE",
"2,Augsburg,BY",
"3,Kiel,SH",
"4,Flensburg,SH",
"5,Stuttgart,BW"
]
class TreeFrame(ttk.Frame):
column_defs = {
"#0": {"label": "IDN", "width": 40, "anchor": tk.E},
"Name": {"label": "Name", "minwidth": 200, "stretch": True},
"Country": {"label": "CC", "width": 80}
}
default_width = 100
default_minwidth = 10
default_anchor = tk.W
def __init__(self, parent, export_city, *args, **kwargs):
super().__init__(parent, *args, **kwargs)
self.columnconfigure(0, weight=1)
self.rowconfigure(0, weight=1)
self.export_namecolumn = export_city
self.treeview = ttk.Treeview(self,
columns=["Name", "Country"],
selectmode='browse')
for (name, definition) in self.column_defs.items():
label = definition.get('label', '')
anchor = definition.get('anchor', self.default_anchor)
minwidth = definition.get('minwidth', self.default_minwidth)
width = definition.get('width', self.default_width)
stretch = definition.get('stretch', False)
self.treeview.heading(name, text=label, anchor=anchor)
self.treeview.column(name, anchor=anchor, minwidth=minwidth,
width=width, stretch=stretch)
self.treeview.tag_configure('hessen', background='lightgreen')
self.treeview.tag_configure('bayern', background='darkgray',
foreground='white')
self.treeview.bind('<<TreeviewOpen>>', self.on_open_record)
self.scrollbar = ttk.Scrollbar(self, orient=tk.VERTICAL,
command=self.treeview.yview)
self.treeview.configure(yscrollcommand=self.scrollbar.set)
self.treeview.grid(row=0, column=0, sticky='NSEW')
self.scrollbar.grid(row=0, column=1, sticky='NSW')
def on_open_record(self, *args):
selected_item = self.treeview.selection()[0]
selected_name = self.treeview.set(selected_item, 0)
in_hessen = (" (Hessen)"
if self.treeview.tag_has('hessen', selected_item) else "")
in_bayern = (" (Bayern)"
if self.treeview.tag_has('bayern', selected_item) else "")
msg = "{0}{1}{2}".format(selected_name, in_hessen, in_bayern)
self.export_namecolumn(msg)
def populate(self, rows):
"""Clear the treeview & write the supplied data rows to it."""
for row in self.treeview.get_children():
self.treeview.delete(row)
for rec in rows:
idstr = str(rec['ID'])
values = [rec['Name'], rec['CC']]
if rec['CC'] == 'HE':
cc = 'hessen'
elif rec['CC'] == 'BY':
cc = 'bayern'
else:
cc = ''
self.treeview.insert('', 'end', iid=idstr, text=idstr,
values=values, tags=(cc,))
if rows:
self.treeview.focus_set()
first = self.treeview.identify_row(0)
self.treeview.selection_set(first)
self.treeview.focus(first)
class RecordFrame(ttk.Frame):
def __init__(self, parent):
super().__init__(parent)
self.columnconfigure(0, weight=1)
self.rowconfigure(1, weight=1)
ttk.Label(self, text="Ausgewählt:").grid(row=0, column=0)
self.entryvar = tk.StringVar()
ttk.Entry(self, textvariable=self.entryvar).grid(row=1, column=0,
sticky='EW')
def set(self, value):
self.entryvar.set(value)
def get(self):
return self.entryvar.get()
class Application(tk.Tk):
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.geometry("360x500")
self.columnconfigure(0, weight=1)
self.rowconfigure(0, weight=1)
self.recordlist = TreeFrame(self, self.show_city)
self.recordlist.grid(row=0, padx=10, pady=10, sticky="NSEW")
self.dataframe = RecordFrame(self)
self.dataframe.grid(row=1, padx=10, pady=10, sticky="NSEW")
self.recordlist.populate(self.get_all_cities(CITIES))
def get_all_cities(self, citynames):
fieldnames = ("ID", "Name", "CC")
allcities = [dict(zip(fieldnames, row.split(','))) for row in citynames]
return allcities
def show_city(self, city):
self.dataframe.set(city)
root = Application()
root.mainloop()
Python 3.7.3, Windows 10. Mit ArchLinux und LXQt als Desktop gleiches Ergebnis.
