In this article we will see how we can get the rejected signal of the QColorDialog widget. This signal is emitted when the dialog has been rejected either by the user or by calling reject()
or done()
with the QDialog::Rejected argument.
Note : This signal is not emitted when hiding the dialog with hide() or setVisible(false). This includes deleting the dialog while it is visible.
In order to do this we use rejected
method with the QColorDialog object
Syntax : dialog.rejected.connect(lambda: print(“Rejected Signal”)
Argument : It takes method as argument
Action Performed : It will call the passed method when rejected signal emitted
Below is the implementation
# importing libraries from PyQt5.QtWidgets import * from PyQt5 import QtCore, QtGui
from PyQt5.QtGui import * from PyQt5.QtCore import * import sys
class Window(QMainWindow):
def __init__( self ):
super ().__init__()
# setting title
self .setWindowTitle( "Python " )
# setting geometry
self .setGeometry( 100 , 100 , 500 , 400 )
# calling method
self .UiComponents()
# showing all the widgets
self .show()
# method for components
def UiComponents( self ):
# creating a QColorDialog object
dialog = QColorDialog( self )
# setting current color to the dialog
dialog.setCurrentColor(Qt.red)
# getting rejected signal
dialog.rejected.connect( lambda : print ( "Rejected Signal" ))
# making color done
# rejecting the color
dialog.done( 0 )
# executing the dialog
dialog.exec_()
# creating label
label = QLabel( "GeeksforGeeks" , self )
# setting geometry to the label
label.setGeometry( 100 , 100 , 300 , 80 )
# making label multi line
label.setWordWrap( True )
# setting stylesheet of the label
label.setStyleSheet( "QLabel"
"{"
"border : 5px solid black;"
"}" )
# getting the selected color
color = dialog.selectedColor()
# setting graphic effect to the label
graphic = QGraphicsColorizeEffect( self )
# setting color to the graphic
graphic.setColor(color)
# setting graphic to the label
label.setGraphicsEffect(graphic)
# setting text to the label
label.setText( "Accepted Color : " + str (color))
# create pyqt5 app App = QApplication(sys.argv)
# create the instance of our Window window = Window()
# start the app sys.exit(App. exec ())
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Output :
Rejected Signal Rejected Signal