theme_selector.py 文件源码

def _setup_widgets(self):
        themes_lbl = ttk.Label(self, text="Themes")

        themes = self.style.theme_names()
        self.themes_combo = ttk.Combobox(self, values=themes, state="readonly")
        self.themes_combo.set(themes[0])
        self.themes_combo.bind("<<ComboboxSelected>>", self._theme_sel_changed)

        change_btn = ttk.Button(self, text='Change Theme',
            command=self._change_theme)

        theme_change_checkbtn = ttk.Checkbutton(self,
            text="Change themes when combobox item is activated",
            variable=self.theme_autochange)

        themes_lbl.grid(ipadx=6, sticky="w")
        self.themes_combo.grid(row=0, column=1, padx=6, sticky="ew")
        change_btn.grid(row=0, column=2, padx=6, sticky="e")
        theme_change_checkbtn.grid(row=1, columnspan=3, sticky="w", pady=6)

        top = self.winfo_toplevel()
        top.rowconfigure(0, weight=1)
        top.columnconfigure(0, weight=1)
        self.columnconfigure(1, weight=1)
        self.grid(row=0, column=0, sticky="nsew", columnspan=3, rowspan=2)