CODEWITHSUNDEEP
pythonpython-3.xpyside2
Solenne Daguerre
Solenne Daguerre

Reputation: 139

Change design with Pyside2 - Python3

I use Python 3.7 and Pyside2.

I would like to change color, font, background color... but I can not !

I import QtGui for design but I have the same error 'Window' object has no attribute 'setBrush'

from PySide2.QtGui import QColor, QBrush, QPainterPath, QFont
from PySide2.QtWidgets import QApplication, QWidget, QPushButton, QMessageBox, QDesktopWidget

import sys

class Window(QWidget):
    def __init__(self):
        super().__init__()

        self.setWindowTitle("Convertisseur de devises")
        self.setGeometry(700,300,700,300)
        self.setBrush(QColor(255, 0, 0, 127))

        self.setButton()
        self.center()

    def setButton(self):
        btn = QPushButton("Inverser Devises", self)
        btn.move(550,135)

    def center(self):
        qRect = self.frameGeometry()
        centerPoint = QDesktopWidget().availableGeometry().center()
        qRect.moveCenter(centerPoint)
        self.move(qRect.topLeft())

myapp = QApplication(sys.argv)
window = Window()
window.show()

myapp.exec_()
sys.exit()

For exemple :

Thank you for your help

Upvotes: 0

Views: 1743

Answers (1)

SitiSchu
SitiSchu

Reputation: 1417

Instead of changing the Painter just use a stylesheet. Qt stylesheets use CSS syntax and can be easily reused for multiple widgets. More info here: https://doc.qt.io/qt-5/stylesheet-syntax.html

In your case for example you could replace 

self.setBrush(QColor(255, 0, 0, 127))

with 

self.setStyleSheet('background-color: rgb(0, 0, 127)')

to change the background color to Blue.

To make it reusable though it would make sense to put the Stylesheet into a seperate file. Place the stylesheet in the same folder as your Python file.

style.qss:

QWidget {
    background-color: rgb(0, 0, 127);
}

QPushButton {
    border: none;
    color: white;
}

And then replace 

self.setBrush(QColor(255, 0, 0, 127))

with 

# This gets the folder the Python file is in and creates the path for the stylesheet
stylesheet_path = os.path.join(os.path.dirname(__file__), 'style.qss')

with open(stylesheet_path, 'r') as f:
    self.setStyleSheet(f.read())

And since you set the style on the parent widget all child widgets (including your Button) will have the same style aswell.

Upvotes: 1

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