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PyQtGraph – Getting Tool Tip Duration of Plot Window
  • Last Updated : 25 Sep, 2020

In this article we will see how we can get tool tip duration of the plot window in the PyQtGraph module. PyQtGraph is a graphics and user interface library for Python that provides functionality commonly required in designing and science applications. Its primary goals are to provide fast, interactive graphics for displaying data (plots, video, etc.) and second is to provide tools to aid in rapid application development (for example, property trees such as used in Qt Designer).Plot windows consist of two main parts: the Plot Panel containing the actual plotted graphics and the Control Panel. The tooltip, infotip, or hint is a common graphical user interface element displayed as an informational text box when hovering over an item. The user hovers the pointer over an item, without clicking it, and a tooltip may appear a small “hover box” with information about the item being hovered over. It can be set with the help of setToolTip method. Tool tip duration is the time period for which tip will appear after the duration it will get disappeared. It can be set with the help of setToolTipDuration method.

We can create a plot window with the help of command given below

# creating a pyqtgraph plot window
window = pg.plot()

In order to do this we use toolTipDuration method with the plot window object

Syntax : window.toolTipDuration()

Argument : It takes no argument



Return : It returns integer

Below is the implementation




# importing QtGui to use QIcon
from PyQt5.QtGui import * 
  
# importing pyqtgraph as pg
import pyqtgraph as pg
  
# importing QtCore and QtGui from the pyqtgraph module
from pyqtgraph.Qt import QtCore, QtGui
  
# importing numpy as np
import numpy as np
  
import time
  
# creating a pyqtgraph plot window
window = pg.plot()
  
# icon for plot window
icon = QIcon("logo.png")
  
# setting icon to the plot window
window.setWindowIcon(icon)
  
# setting window geometry
# left = 100, top = 100
# width = 600, height = 500
window.setGeometry(100, 100, 600, 500)
  
# title for the plot window
title = "GeeksforGeeks PyQtGraph"
  
# setting window title to plot window
window.setWindowTitle(title)
  
# create list for y-axis
y1 = [5, 5, 7, 10, 3, 8, 9, 1, 6, 2]
  
# create horizontal list i.e x-axis
x = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
  
# create pyqt5graph bar graph item 
# with width = 0.6
# with bar colors = green
bargraph1 = pg.BarGraphItem(x = x, height = y1, width = 0.6, brush ='g')
  
# add item to plot window
# adding bargraph item to the window
window.addItem(bargraph1)
  
# text for tool tip
text = "This is Bar Graph"
  
# setting window tool tip
window.setToolTip(text)
  
# setting toop tip duration = 2seconds
window.setToolTipDuration(2000)
  
# getting tool tip duration of plot window
value = window.toolTipDuration()
  
# printing the value
print("Tool Tip Duration : " + str(value))
  
# main method
if __name__ == '__main__':
      
    # importing system
    import sys
      
    # Start Qt event loop unless running in interactive mode or using 
    if (sys.flags.interactive != 1) or not hasattr(QtCore, 'PYQT_VERSION'):
        QtGui.QApplication.instance().exec_()
         

Output :

Tool Tip Duration : 2000

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