toolTipText.py

""" 
    The program when run, detects the use of anonymizing services in a test dataset
    
    Copyright (C) <year>  <name of author>

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Affero General Public License as
    published by the Free Software Foundation, either version 3 of the
    License, or (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU Affero General Public License for more details.

    You should have received a copy of the GNU Affero General Public License
    along with this program.  If not, see <https://www.gnu.org/licenses/>.
"""
#import this file and call the method CreateToolTip() to generate tooltip text on hover 

from tkinter import *

#class for displaying tooltip text
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):
		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()

#showing/destroying tooltip text on mouseenter or mouseleave event
def CreateToolTip(widget, text):
	toolTip = ToolTip(widget)

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

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