PyQt5 - How to change QPushButton QLabel?

[Patitotective]

I'm trying to outline the text on a QPushButton. I found this to make an outlined label but now i need to set that label as the QPushButton one.

This code will create an outlined label:

import sys
import math
from PyQt5.QtWidgets import QLabel, QWidget, QApplication, QVBoxLayout
from PyQt5.QtGui import QPen, QBrush, QFontMetrics, QPainterPath, QPainter
from PyQt5.QtCore import Qt, QSize
      
class OutlinedLabel(QLabel):
    
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.w = 1 / 25
        self.mode = True
        self.setBrush(Qt.white)
        self.setPen(Qt.black)

    def scaledOutlineMode(self):
        return self.mode

    def setScaledOutlineMode(self, state):
        self.mode = state

    def outlineThickness(self):
        return self.w * self.font().pointSize() if self.mode else self.w

    def setOutlineThickness(self, value):
        self.w = value

    def setBrush(self, brush):
        if not isinstance(brush, QBrush):
            brush = QBrush(brush)
        self.brush = brush

    def setPen(self, pen):
        if not isinstance(pen, QPen):
            pen = QPen(pen)
        pen.setJoinStyle(Qt.RoundJoin)
        self.pen = pen

    def sizeHint(self):
        w = math.ceil(self.outlineThickness() * 2)
        return super().sizeHint() + QSize(w, w)
    
    def minimumSizeHint(self):
        w = math.ceil(self.outlineThickness() * 2)
        return super().minimumSizeHint() + QSize(w, w)
    
    def paintEvent(self, event):
        w = self.outlineThickness()
        rect = self.rect()
        metrics = QFontMetrics(self.font())
        tr = metrics.boundingRect(self.text()).adjusted(0, 0, int(w), int(w)) # DeprecationWarning: an integer is required (got type float).
        if self.indent() == -1:
            if self.frameWidth():
                indent = (metrics.boundingRect('x').width() + w * 2) / 2
            else:
                indent = w
        else:
            indent = self.indent()

        if self.alignment() & Qt.AlignLeft:
            x = rect.left() + indent - min(metrics.leftBearing(self.text()[0]), 0)
        elif self.alignment() & Qt.AlignRight:
            x = rect.x() + rect.width() - indent - tr.width()
        else:
            x = (rect.width() - tr.width()) / 2
            
        if self.alignment() & Qt.AlignTop:
            y = rect.top() + indent + metrics.ascent()
        elif self.alignment() & Qt.AlignBottom:
            y = rect.y() + rect.height() - indent - metrics.descent()
        else:
            y = (rect.height() + metrics.ascent() - metrics.descent()) / 2

        path = QPainterPath()
        path.addText(x, y, self.font(), self.text())
        qp = QPainter(self)
        qp.setRenderHint(QPainter.Antialiasing)

        self.pen.setWidthF(w * 2 if w * 2 > 0 else 0) # Otherwise QPen::setWidthF: Setting a pen width with a negative value is not defined
        qp.strokePath(path, self.pen)
        if 1 < self.brush.style() < 15:
            qp.fillPath(path, self.palette().window())
        qp.fillPath(path, self.brush)

class Window(QWidget):
    def __init__(self):
        super().__init__()
        self.setLayout(QVBoxLayout())
        
        label = OutlinedLabel('Hello world')
        label.setStyleSheet("font-size: 50px;")
        
        self.layout().addWidget(label)

if __name__ == '__main__':
    app = QApplication(sys.argv)
    window = Window()
    window.show()
    
    sys.exit(app.exec_())

[ndias]

Hi @Patitotective

You can define a QPushButton as parent widget of OutlinedLabel:

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

        button = QPushButton()

        button = QPushButton(self)
        
        label = OutlinedLabel('Hello world', button)
        label.setStyleSheet("font-size: 50px;")

        button.clicked.connect(lambda: print("Button pressed!"))
        button.setFixedSize(label.sizeHint())
        
        self.layout().addWidget(button)

[Patitotective]

Thank you @ndias , it worked. 🙃