PyQt5 ComboBox - Different border size to down arrow

PyQt5 ComboBox - Different border size to down arrow

In PyQt5, styling a QComboBox widget to have a different border size for the down arrow can be achieved using the QStyleSheets. With QStyleSheets, you can specify custom styles for different parts of widgets. For the QComboBox, you can separately style the main area and the down arrow.

Here's how you can do it:

  1. Import PyQt5 Modules: First, you need to import the necessary PyQt5 modules.

  2. Create the Main Window: Create a main window class derived from QMainWindow.

  3. Add a QComboBox: Add a QComboBox to your main window.

  4. Style the QComboBox: Use QStyleSheets to style the QComboBox, specifically targeting the down arrow for a different border size.

Here's an example code to illustrate this:

import sys from PyQt5.QtWidgets import QApplication, QMainWindow, QComboBox class MainWindow(QMainWindow): def __init__(self): super().__init__() # Create ComboBox self.comboBox = QComboBox(self) self.comboBox.setGeometry(50, 50, 200, 30) # Adding items to ComboBox self.comboBox.addItems(["Option 1", "Option 2", "Option 3"]) # Styling ComboBox self.comboBox.setStyleSheet(""" QComboBox { border: 2px solid gray; border-radius: 5px; padding: 1px 18px 1px 3px; min-width: 6em; } QComboBox::drop-down { subcontrol-origin: padding; subcontrol-position: top right; width: 15px; border-left-width: 3px; border-left-color: darkgray; border-left-style: solid; border-top-right-radius: 3px; border-bottom-right-radius: 3px; } """) # Set the size of the window self.setGeometry(300, 300, 300, 200) self.setWindowTitle('PyQt5 ComboBox') if __name__ == '__main__': app = QApplication(sys.argv) mainWin = MainWindow() mainWin.show() sys.exit(app.exec_())

In this example, the QComboBox is styled with a standard border, and the ::drop-down pseudo-element (which represents the down arrow) is given a different border size. You can adjust the values in the stylesheet to match your desired appearance.

More Tags

azure-application-gateway angular2-injection angularjs-directive ansible ng2-file-upload jenkins-groovy amazon-sqs google-pay user-agent shiny-server

More Programming Guides

Other Guides

More Programming Examples