GUI_OOP_2_classes.py 文件源码

def show_tip(self, tip_text):
        "Display text in a tooltip window"
        if self.tip_window or not tip_text:
            return
        x, y, _cx, cy = self.widget.bbox("insert")      # get size of widget
        x = x + self.widget.winfo_rootx() + 25          # calculate to display tooltip 
        y = y + cy + self.widget.winfo_rooty() + 25     # below and to the right
        self.tip_window = tw = tk.Toplevel(self.widget) # create new tooltip window
        tw.wm_overrideredirect(True)                    # remove all Window Manager (wm) decorations
#         tw.wm_overrideredirect(False)                 # uncomment to see the effect
        tw.wm_geometry("+%d+%d" % (x, y))               # create window size

        label = tk.Label(tw, text=tip_text, justify=tk.LEFT,
                      background="#ffffe0", relief=tk.SOLID, borderwidth=1,
                      font=("tahoma", "8", "normal"))
        label.pack(ipadx=1)