ToolTip.py

from tkinter import *

'''
    A class for all the help text for user that is shown when hover in the third tab in both topologies
    an instance of this class is created in average_analysis.py, message is shown to user according to the argument 
    showtip functions gets.
'''


class ToolTip(object):

    def __init__(self, widget):
        self.widget = widget
        self.tipwindow = None
        self.id = None
        self.x = self.y = 0

    def showtip(self, text):
        # "Display text in tooltip window"
        self.text = text
        if self.tipwindow or not self.text:
            return
        x, y, cx, cy = self.widget.bbox("insert")
        x = x + self.widget.winfo_rootx() + 57
        y = y + cy + self.widget.winfo_rooty() +27
        self.tipwindow = tw = Toplevel(self.widget)
        tw.wm_overrideredirect(1)
        tw.wm_geometry("+%d+%d" % (x, y))
        label = Label(tw, text=self.text, justify=LEFT,
                      background="#ffffe0", relief=SOLID, borderwidth=1,
                      font=("tahoma", "8", "normal"))
        label.pack(ipadx=1)

    def hidetip(self):
        tw = self.tipwindow
        self.tipwindow = None
        if tw:
            tw.destroy()


def create_tooltip(widget, text):
    tooltip = ToolTip(widget)

    def enter(event):
        tooltip.showtip(text)

    def leave(event):
        tooltip.hidetip()
    widget.bind('<Enter>', enter)
    widget.bind('<Leave>', leave)