make qgraphicsdropshadow effect work on transparent widget colors

[Shahzaib Hassan]

Hi, i made a class that takes a window and draws a glowing area on it. The trick i used is to make a QFrame, and apply a qgraphicsdropshadow effect on it. And setting the offset to -glow_width and -glow_height. this makes a glowing area and works how ever the frame interepts with other widgets on the screen

I tried to make the frame color transparent, but that just makes the glow effect invisible. ( Note that the color_to_rgb() function converts a color or hex color to RGBA format. )

Heres my code for the class:

class GlowBox:
    def __init__(self, master, glow_color='green',
                 corner_radius=5, blur_radius=10,
                 width=50, height=50):
        glow_color = color_to_rgb(glow_color)

        self._f = QFrame(master )
        self._f.setFixedSize(width,height)
        self._f.setStyleSheet(f'''
        QFrame {{
            border-radius: {corner_radius}; 
        }} ''')

        self.attributes_width = width
        self.attributes_height = height

        blur_effect = QGraphicsDropShadowEffect()
        blur_effect.setBlurRadius(blur_radius)
        blur_effect.setOffset(-width,-height)
        blur_effect.setColor(QColor(glow_color[0],glow_color[1],glow_color[2],glow_color[3]) )

        self._f.setGraphicsEffect(blur_effect)

    def place(self, x,y):
        self._f.move(x+self.attributes_width,y+self.attributes_height)
        self._f.show()