Python Listbox.focus_set方法代码示例

# 需要导入模块: from tkinter import Listbox [as 别名]
# 或者: from tkinter.Listbox import focus_set [as 别名]
    def initUI(self):
        self.parent.title("TVstream manager")
        self.stytle = ttk.Style()
        self.pack(fill=BOTH, expand=1)        
        self.columnconfigure(0, weight=1, pad=2)
        self.columnconfigure(2, weight=1, pad=2)
        self.columnconfigure(4,  pad=7)
        #self.rowconfigure(3, weight=1)
        #self.rowconfigure(4, weight=1, pad=7)

        lbll = Label(self, text="Lingua")
        lbll.grid(row=0,column=0,sticky=W, pady=4, padx=5)

        lble = Label(self, text="Emittenti")
        lble.grid(row=0,column=2,sticky=W, pady=1, padx=5)

        global langlst
        scrollang = Scrollbar(self)
        langlst = Listbox(self,font='Arial 9',yscrollcommand=scrollang.set)
        scrollang.config(command = langlst.yview)
        
        for i in lingue:
            langlst.insert(END, i)
        langlst.focus_set()
        
        langlst.bind("<<ListboxSelect>>", self.onSelectLang)  
        langlst.grid(row=1,column=0, columnspan=2, padx=6,sticky=E+W+S+N)
        scrollang.grid(row=1,column=1, sticky=E+S+N)

        global emitlst
        scrollemit = Scrollbar(self)
        emitlst = Listbox(self,font='Arial 9',yscrollcommand=scrollemit.set)
        scrollemit.config(command = emitlst.yview )
        emitlst.bind("<<ListboxSelect>>", self.onSelectEmittente)
        emitlst.grid(row=1,column=2, columnspan=2, padx=5,sticky=E+W+S+N)
        scrollemit.grid(row=1,column=3,sticky=E+S+N)

        lbltxt = Label(self, text="Output log")
        lbltxt.grid(row=2,column=0, columnspan=3, sticky=W, pady=4, padx=5)
        
        global area
        area = Text(self,height=10,font='Arial 9')
        area.grid(row=3, column=0, columnspan=5, rowspan=1, padx=5, sticky=E+W+S+N)
        scrolltxt = Scrollbar(self)
        scrolltxt.config(command = area.yview)
        scrolltxt.grid(row=3,column=4, columnspan=1, rowspan=1, sticky=E+N+S)
        
        play = Button(self, text='Play', command=self.playUrl,
               bg='gray', fg='black')
        play.grid(row=1,column=4,padx=4,sticky=E+W)

# 需要导入模块: from tkinter import Listbox [as 别名]
# 或者: from tkinter.Listbox import focus_set [as 别名]

#.........这里部分代码省略.........
            self.handler_notify(self.ITEMCUR_CHANGE_SOON, notify_arg)

        # If old active index is valid
        if self.index_is_valid(old_indexcur):
            # Set old active item's background color to normal color
            self._listbox.itemconfig(old_indexcur, background=self._normal_bg)

            # Set old active item's foreground color to normal color
            self._listbox.itemconfig(old_indexcur, foreground=self._normal_fg)

        # Cache new active index
        self._indexcur = index

        # Clear listbox widget's selection
        self._listbox.selection_clear(0, END)

        # Set listbox widget's selection
        self._listbox.selection_set(index)

        # Set listbox widget's activated index
        self._listbox.activate(index)

        # If new active index is valid
        if index != -1:
            # Set new active item's background color to active color
            self._listbox.itemconfig(index, background=self._active_bg)

            # Set new active item's foreground color to active color
            self._listbox.itemconfig(index, foreground=self._active_fg)

        # If set focus
        if focus:
            # Set focus on the listbox widget
            self._listbox.focus_set()

        # If new active index is valid
        if index != -1:
            # Make the active item visible
            self._listbox.see(index)

        # If notify events
        if notify:
            # Notify post-change event
            self.handler_notify(self.ITEMCUR_CHANGE_DONE, notify_arg)

        # Set resetting flag off
        self._is_resetting = False

        # Set changing flag off
        self._is_changing = False

    def indexcur_set_by_event(
        self,
        event,
        focus=False,
        notify=True,
        notify_arg=None,
    ):
        """
        Set active index using a Tkinter event object that contains coordinates
        of the active item.

        @param event: Tkinter event object.

        @param focus: Whether set focus on the listbox widget.