tkinter事件绑定

右键菜单

本小节实现右键的粘贴、复制、截切功能

代码

def cut(editor):
    editor.event_generate("<>")


def copy(editor):
    editor.event_generate("<>")


def paste(editor):
    editor.event_generate('<>')


def rightKey(widget, event, editor):
    """功能：cut copy paste"""
    menu_bar = tk.Menu(widget, tearoff=False)
    menu_bar.delete(0, tk.END)
    menu_bar.add_command(label='剪切', command=lambda: cut(editor))
    menu_bar.add_command(label='复制', command=lambda: copy(editor))
    menu_bar.add_command(label='粘贴', command=lambda: paste(editor))
    menu_bar.post(event.x_root, event.y_root)


def menuRK(root, widget):
    """部件添加右键功能"""
    widget.bind("", lambda x: rightKey(root, x, widget))

其余功能可以自行加入代码中，例如加入保存功能

def save(widget):
    file_path = filedialog.asksaveasfilename(title=u'保存文件')
    content = widget.get('1.0', tk.END)
    if file_path is not None:
        with open(file=file_path, mode='w', encoding='utf-8') as file:
            file.write(content)

def rightKey(widget, event, editor):
	menu_bar = tk.Menu(widget, tearoff=False)
    menu_bar.add_command(label='保存', command=lambda: save(editor))

效果图

回车键

回车键的功能大部分是具有确定的功效
代码

def enterKey(widget, mapping):
	widget.bind("", lambda x: mapping(widget))

案例

def getValue(widget):
	print(widget.get('1.0', tkinter.END))


text = tkinter.Text(tkinter.TK())
text.pack()
enterKey(text, getValue)

隐藏和显示

隐藏或显示组件
代码

def hideOrDisplay(widgets, status='hide'):
	if status.lower() == 'hide':
		widgets.pack_forget()
	elif status.lower() == 'display':
		widgets.pack()

进度条

制作进度条的效果
代码

def progressBar(widget):
	sub_win = tkinter.Toplevel(widget)
	sub_win.title("下载")
	sub_win.geometry('420x20+100+30')
	canvas = tkinter.Canvas(sub_win, width=280, height=10, bg="blue")
	canvas.pack()
	fill_line = canvas.create_rectangle(2, 2, 0, 10, fill="green")
	for n in range(280):
		n += 1
		canvas.coords(fill_line, (0, 0, n, 10))
		sub_win.update()
		time.sleep(0.2)

效果图