PyQt5 QDockWidget – Setting Style Sheet

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In this article we will see how we can set style sheet to the QDockWidget. QDockWidget provides the concept of dock widgets, also know as tool palettes or utility windows. Dock windows are secondary windows placed in the dock widget area around the central widget in a QMainWindow(original window). Style sheet represent the style i.e look of the widget it consist of color, spacing, padding, border features

In order to do this we will use setStyleSheet method with the dock widget object.
Syntax : dock.setStyleSheet(style)
Argument : It takes string as argument
Return : It returns None

Below is the example style sheet code

QDockWidget
{
background : lightgreen;
}
QDockWidget::title
{
background : lightblue;
}
QDockWidget QPushButton
{
border : 2px solid black;
background : darkgreen;
}

Note : Here we have used QDockWidget::QPushButton because we have added push buttons in the dock we can use other widget name if any other widget is added.
Below is the implementation

Python3

# 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 dock widget
        dock = QDockWidget(self)
 
        # setting title to the dock widget
        dock.setWindowTitle("GfG Title")
 
        # creating a QWidget object
        widget = QWidget(self)
 
        # creating a vertical box layout
        layout = QVBoxLayout(self)
 
        # push button 1
        push1 = QPushButton("A", self)
 
        # push button 2
        push2 = QPushButton("B", self)
 
        # adding these buttons to the layout
        layout.addWidget(push1)
        layout.addWidget(push2)
 
        # setting the layout to the widget
        widget.setLayout(layout)
 
        # adding widget to the layout
        dock.setWidget(widget)
 
        # creating a label
        label = QLabel("zambiatek", self)
 
        # setting geometry to the label
        label.setGeometry(100, 200, 300, 80)
 
        # making label multi line
        label.setWordWrap(True)
 
        # setting geometry to the dock widget
        dock.setGeometry(100, 0, 200, 30)
 
        # setting style sheet to the  dock widget
        dock.setStyleSheet("QDockWidget"
                           "{"
                           "background : lightgreen;"
                           "}"
                           "QDockWidget::title"
                           "{"
                           "background : lightblue;"
                           "}"
                           "QDockWidget QPushButton"
                           "{"
                           "border : 2px solid black;"
                           "background : darkgreen;"
                           "}"
                           )
 
 
 
 
# create pyqt5 app
App = QApplication(sys.argv)
 
# create the instance of our Window
window = Window()
 
# start the app
sys.exit(App.exec())