Drop shadow not working

[poppypelt12]

In my UI i have a Main widger -> central widget -> grid-> 45 buttons and i want to apply drop shadow to all of them. I have added the libraries
(from PySide6.QtWidgets import QApplication, QMainWindow, QDialog, QMessageBox, QGraphicsEffect, QPushButton, QGraphicsDropShadowEffect).

I tried to apply it on a basic button BUT it didnt work there either. I made a try and exception to see if it doesent enter the drop shadow function. Here is the code in main:

for child in self.ui.grid.findChildren(QPushButton):
self.apply_drop_shadow(child)

here is the function:

def apply_drop_shadow(self, widget):
shadow = QGraphicsDropShadowEffect(blurRadius=5, xOffset=10, yOffset=10)
widget.setGraphicsEffect(shadow)

any help is GREATLY appreciated! Thank you so much ...

[SGaist]

Hi,

Please write a minimal script that creates a widget with a button in it and applies the drop shadow on it.

[poppypelt12]

@SGaist here is what i wrote:
import sys

from PySide6.QtWidgets import QApplication, QMainWindow, QDialog, QMessageBox, QPushButton, QGraphicsDropShadowEffect, QTableWidget, QTableWidgetItem
from PySide6.QtGui import QIcon, QPixmap
from PySide6.QtCore import Qt, QSize, QPropertyAnimation, QEasingCurve, QPoint

from ui_form import Ui_MainWindow

import re

class MainWindow(QMainWindow):
def init(self, parent=None):
super().init(parent)
self.ui = Ui_MainWindow()
self.ui.setupUi(self)
for child in self.ui.grid.findChildren(QPushButton):
self.apply_drop_shadow(child)

    shadow = QGraphicsDropShadowEffect()
    shadow.setBlurRadius(10)  # Adjust the blur radius as needed
    shadow.setXOffset(5)      # Adjust the X offset as needed
    shadow.setYOffset(5)      # Adjust the Y offset as needed

    # Apply the drop shadow effect to the button
    self.ui.legendButton.setGraphicsEffect(shadow)
    self.ui.legend.setMinimumWidth(286)
    self.ui.legendButton.setVisible(True)
    #self.apply_drop_shadow(self.ui.legendButton)
    self.ui.button_area.setGeometry(70, 0, 1800, 1080)
    self.setWindowTitle("Vital Alert")
    self.setWindowIcon(QIcon("logo.png"))

    self.populate_buttons()
    self.set_icons()

    self.showFullScreen()

def apply_drop_shadow(self, widget):
    shadow = QGraphicsDropShadowEffect(blurRadius=5, xOffset=10, yOffset=10)
    widget.setGraphicsEffect(shadow)

if name == "main":
app = QApplication(sys.argv)
widget = MainWindow()
widget.show()
sys.exit(app.exec())

[jsulm]

@poppypelt12 Please use code tags properly, especially when posting Python code where indentation is part of the syntax!

[poppypelt12]

@jsulm Sorry, I am a beginner haha :) i copied the code and pasted it but my program is more complex but this is the relevant part. Did i do something wrong with how i wrote the drop shadow or did i leave out a library? :(

[JonB]

@poppypelt12
We are just asking you: when you paste code blocks, please enclose them in the forum's Code tags (the </> button). This will post all the code literally, including spacing, which is so vital in Python.

[poppypelt12]

@JonB Okay, here is the code with the forums code tags ^^

<class MainWindow(QMainWindow):
def init(self, parent=None):
super().init(parent)
self.ui = Ui_MainWindow()
self.ui.setupUi(self)

    self.room_instance = Room(None, None, None)
    self.data=self.room_instance.read_data_from_file("rooms.json")

    self.ui.settings.clicked.connect(self.showSettings)
    self.ui.panels.clicked.connect(self.showPanels)
    self.ui.legendButton.clicked.connect(self.legend_change_size)

    for child in self.ui.grid.findChildren(QPushButton):
        self.apply_drop_shadow(child)

    shadow = QGraphicsDropShadowEffect()
    shadow.setBlurRadius(10)  # Adjust the blur radius as needed
    shadow.setXOffset(5)      # Adjust the X offset as needed
    shadow.setYOffset(5)      # Adjust the Y offset as needed

    # Apply the drop shadow effect to the button
    self.ui.legendButton.setGraphicsEffect(shadow)
    self.ui.legend.setMinimumWidth(286)
    self.ui.legendButton.setVisible(True)
    #self.apply_drop_shadow(self.ui.legendButton)
    self.ui.button_area.setGeometry(70, 0, 1800, 1080)
    self.setWindowTitle("Vital Alert")
    self.setWindowIcon(QIcon("logo.png"))

    self.populate_buttons()
    self.set_icons()

    self.showFullScreen()

def apply_drop_shadow(self, widget):
    shadow = QGraphicsDropShadowEffect(blurRadius=5, xOffset=10, yOffset=10)
    widget.setGraphicsEffect(shadow)

/>

[jsulm]

@poppypelt12 said in Drop shadow not working:

here is the code with the forums code tags

Better, but still not correct

[J.Hilk]

@poppypelt12

[poppypelt12]

@J-Hilk

import sys

from PySide6.QtWidgets import QApplication, QMainWindow, QDialog, QMessageBox, QPushButton, QGraphicsDropShadowEffect, QTableWidget, QTableWidgetItem
from PySide6.QtGui import QIcon, QPixmap
from PySide6.QtCore import Qt, QSize, QPropertyAnimation, QEasingCurve, QPoint

from ui_form import Ui_MainWindow
from add_room import AddRoomDialog
from room import Room
from settings import Settings
from panels import Panels

import re

class MainWindow(QMainWindow):
    def __init__(self, parent=None):
        super().__init__(parent)
        self.ui = Ui_MainWindow()
        self.ui.setupUi(self)

        self.ui.legendButton.clicked.connect(self.legend_change_size)

        for child in self.ui.grid.findChildren(QPushButton):
            self.apply_drop_shadow(child)

        shadow = QGraphicsDropShadowEffect()
        shadow.setBlurRadius(10)  # Adjust the blur radius as needed
        shadow.setXOffset(5)      # Adjust the X offset as needed
        shadow.setYOffset(5)      # Adjust the Y offset as needed

        # Apply the drop shadow effect to the button
        self.ui.legendButton.setGraphicsEffect(shadow)
        self.ui.legend.setMinimumWidth(286)
        self.ui.legendButton.setVisible(True)
        #self.apply_drop_shadow(self.ui.legendButton)
        self.ui.button_area.setGeometry(70, 0, 1800, 1080)
        self.setWindowTitle("Vital Alert")
        self.setWindowIcon(QIcon("logo.png"))

        self.populate_buttons()
        self.set_icons()

        self.showFullScreen()

    def apply_drop_shadow(self, widget):
        shadow = QGraphicsDropShadowEffect(blurRadius=5, xOffset=10, yOffset=10)
        widget.setGraphicsEffect(shadow)

thank you for the inpot

[poppypelt12]

@jsulm Could you please tell me what you think i did wrong? It is very important to me..! I think you are the only one who can help me with this...

[jsulm]

@poppypelt12 Did you actually check whether self.ui.grid.findChildren(QPushButton) returned anything?

[poppypelt12]

@jsulm I dont know, but I tried doing it in another project on a regular single button, and it didn't work in there either, does it work for you?

[jsulm]

@poppypelt12 Well, without ui_form I can't run your script.

[poppypelt12]

@jsulm but can you add a drop shadow at all to any button? please if i cant figure this out i will cry :(

[jsulm]

@poppypelt12 You were asked to write MINIMAL script. You did not.
Here, I did it for you:

import sys

from PySide6.QtWidgets import QApplication, QMainWindow, QPushButton, QGraphicsDropShadowEffect

class MainWindow(QMainWindow):
    def __init__(self, parent=None):
        super().__init__(parent)

        shadow = QGraphicsDropShadowEffect()
        shadow.setBlurRadius(10)  # Adjust the blur radius as needed
        shadow.setXOffset(5)      # Adjust the X offset as needed
        shadow.setYOffset(5)      # Adjust the Y offset as needed

        self.button = QPushButton(self)
        self.button.setGraphicsEffect(shadow)

if __name__ == '__main__':
    app = QApplication()

    mainWindow = MainWindow()
    mainWindow.show()

    app.exec()

And no, I don't see any drop shadow.

[jsulm]

@poppypelt12 This works:

import sys

from PySide6.QtWidgets import QApplication, QMainWindow, QPushButton, QGraphicsDropShadowEffect

class MainWindow(QMainWindow):
    def __init__(self, parent=None):
        super().__init__(parent)

        self.shadow = QGraphicsDropShadowEffect()
        self.shadow.setBlurRadius(10)  # Adjust the blur radius as needed
        self.shadow.setXOffset(5)      # Adjust the X offset as needed
        self.shadow.setYOffset(5)      # Adjust the Y offset as needed

        self.button = QPushButton(self)
        self.button.setGraphicsEffect(self.shadow)

if __name__ == '__main__':
    app = QApplication()

    mainWindow = MainWindow()
    mainWindow.show()

    app.exec()

Do you know why? Hint: think about life time of "shadow" in the previous code.

[poppypelt12]

@jsulm Then pleaese how can i make a drop shadow? i searched everywhere on the internet but there is not much info on this and most of it is outdated, i really need your help

[poppypelt12]

@jsulm Oh my god thank you so much!

[poppypelt12]

@jsulm i am very thankful johann