Application becomes unresponsive as soon as i use the buttons

[AX_LEARNS]

Not sure on why it happens as im still very new to python... Any suggestions or can you guys see any reason of why it might be happening??

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import sys import os import cv2 from PyQt6.QtWidgets import QApplication, QLabel, QVBoxLayout, QPushButton, QScrollArea, QWidget, QMainWindow, QGridLayout, QFileDialog from PyQt6.QtGui import QPixmap, QImage, QPainter from PyQt6.QtCore import Qt, QThread, pyqtSignal   class App(QMainWindow):     def __init__(self, parent=None):         super(App, self).__init__(parent)         self.setWindowTitle("Character Creator")         self.setFixedSize(600, 500)         self.setStyleSheet("background-color: #3C3C3C;")           self.categories = ['shirt', 'pants', 'shoes', 'accessories', 'eyes', 'hair', 'skin-colour']  # Add more categories as needed           self.category_buttons = []         for i, category in enumerate(self.categories):             button = QPushButton(category.upper(), self)             button.move(10, 40 + i * 30)             button.setFixedSize(100, 25)             button.setStyleSheet("background-color: #1C1A1A; color: #EFEFEF;")             button.clicked.connect(lambda _, c=category: self.show_category(c))             self.category_buttons.append(button)       def show_category(self, category):         category_root = CategoryWindow(self, category)         category_root.show()   class ImageLoaderThread(QThread):     image_loaded = pyqtSignal(QPixmap, str)       def __init__(self, category_folder, parent=None):         super(ImageLoaderThread, self).__init__(parent)         self.category_folder = category_folder       def run(self):         skin_parts = self.load_skin_parts(self.category_folder)         for skin_part in skin_parts:             pixmap = QPixmap(os.path.join(self.category_folder, skin_part))             self.image_loaded.emit(pixmap, skin_part)       def load_skin_parts(self, folder):         return os.listdir(folder)   class CategoryWindow(QWidget):     def __init__(self, parent=None, category=''):         super(CategoryWindow, self).__init__(parent)         self.setWindowTitle(category.upper())         self.setFixedSize(200, 500)         self.setStyleSheet("background-color: #3C3C3C;")           self.layout = QVBoxLayout()         self.setLayout(self.layout)           self.scrollArea = QScrollArea()         self.scrollArea.setWidgetResizable(True)         self.scrollAreaWidgetContents = QWidget(self.scrollArea)         self.scrollAreaWidgetContents.setLayout(self.layout)         self.scrollArea.setWidget(self.scrollAreaWidgetContents)           self.layout.addWidget(self.scrollArea)           category_folder = os.path.join(r'Desktop\MinecraftSkinEditor\clothes\alex', category)         self.image_loader_thread = ImageLoaderThread(category_folder)         self.image_loader_thread.image_loaded.connect(self.on_image_loaded)         self.image_loader_thread.start()       def on_image_loaded(self, pixmap, skin_part):         label = ClickableQLabel()         label.setPixmap(pixmap)         label.clicked.connect(lambda sp=skin_part: self.on_skin_part_click(label, sp))         self.layout.addWidget(label)       def on_skin_part_click(self, label, skin_part):         print('Clicked on skin part:', skin_part)         pixmap = label.pixmap().copy()           # Open a dialog to select the skin part image         file_dialog = QFileDialog()         file_dialog.setWindowTitle("Select Skin Part Image")         file_dialog.setFileMode(QFileDialog.FileMode.ExistingFile)         file_dialog.setNameFilter("Images (*.png *.jpg *.jpeg *.gif)")           if file_dialog.exec() == QFileDialog.DialogCode.Accepted:             image_path = file_dialog.selectedFiles()[0]             skin_part_image = cv2.imread(image_path)               # Resize the skin part image to fit the preview             resized_skin_part_image = cv2.resize(skin_part_image, (pixmap.width(), pixmap.height()), interpolation=cv2.INTER_LINEAR)               # Convert the resized skin part image to QPixmap             skin_part_qimage = QImage(resized_skin_part_image.data, resized_skin_part_image.shape[1], resized_skin_part_image.shape[0], QImage.Format_BGR888)             skin_part_pixmap = QPixmap.fromImage(skin_part_qimage)               # Paste the skin part image onto the preview image             pixmap = pixmap.copy()  # Create a copy to modify             painter = QPainter(pixmap)             painter.setCompositionMode(QPainter.CompositionMode.DestinationOver)             painter.drawPixmap(0, 0, skin_part_pixmap)             painter.end()               # Update the label with the modified image             label.setPixmap(pixmap)       def create_complete_skin(self):         skin_parts = []           # Collect the skin parts from the labels         for label in self.findChildren(ClickableQLabel):             pixmap = label.pixmap()             if pixmap is not None:                 skin_parts.append(pixmap.toImage())           # Create a blank image for the complete skin         complete_skin_width = 64         complete_skin_height = 64         complete_skin = QImage(complete_skin_width, complete_skin_height, QImage.Format_ARGB32)         complete_skin.fill(Qt.GlobalColor.transparent)           # Paste the skin parts onto the complete skin         painter = QPainter(complete_skin)         for i, skin_part in enumerate(skin_parts):             x = i % 8 * 8             y = i // 8 * 8             painter.drawImage(x, y, skin_part)         painter.end()           # Save the complete skin         save_path, _ = QFileDialog.getSaveFileName(self, "Save Complete Skin", "", "PNG Files (*.png)")         if save_path:             complete_skin.save(save_path)   class ClickableQLabel(QLabel):     clicked = pyqtSignal()       def __init__(self, parent=None):         QLabel.__init__(self, parent)       def mousePressEvent(self, event):         self.clicked.emit()   if __name__ == "__main__":     app = QApplication(sys.argv)     window = App()     window.show()     sys.exit(app.exec())

[DigiGod]

Not sure on why it happens as im still very new to python... Any suggestions or can you guys see any reason of why it might be happening??

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import sys import os import cv2 from PyQt6.QtWidgets import QApplication, QLabel, QVBoxLayout, QPushButton, QScrollArea, QWidget, QMainWindow, QGridLayout, QFileDialog from PyQt6.QtGui import QPixmap, QImage, QPainter from PyQt6.QtCore import Qt, QThread, pyqtSignal   class App(QMainWindow):     def __init__(self, parent=None):         super(App, self).__init__(parent)         self.setWindowTitle("Character Creator")         self.setFixedSize(600, 500)         self.setStyleSheet("background-color: #3C3C3C;")           self.categories = ['shirt', 'pants', 'shoes', 'accessories', 'eyes', 'hair', 'skin-colour']  # Add more categories as needed           self.category_buttons = []         for i, category in enumerate(self.categories):             button = QPushButton(category.upper(), self)             button.move(10, 40 + i * 30)             button.setFixedSize(100, 25)             button.setStyleSheet("background-color: #1C1A1A; color: #EFEFEF;")             button.clicked.connect(lambda _, c=category: self.show_category(c))             self.category_buttons.append(button)       def show_category(self, category):         category_root = CategoryWindow(self, category)         category_root.show()   class ImageLoaderThread(QThread):     image_loaded = pyqtSignal(QPixmap, str)       def __init__(self, category_folder, parent=None):         super(ImageLoaderThread, self).__init__(parent)         self.category_folder = category_folder       def run(self):         skin_parts = self.load_skin_parts(self.category_folder)         for skin_part in skin_parts:             pixmap = QPixmap(os.path.join(self.category_folder, skin_part))             self.image_loaded.emit(pixmap, skin_part)       def load_skin_parts(self, folder):         return os.listdir(folder)   class CategoryWindow(QWidget):     def __init__(self, parent=None, category=''):         super(CategoryWindow, self).__init__(parent)         self.setWindowTitle(category.upper())         self.setFixedSize(200, 500)         self.setStyleSheet("background-color: #3C3C3C;")           self.layout = QVBoxLayout()         self.setLayout(self.layout)           self.scrollArea = QScrollArea()         self.scrollArea.setWidgetResizable(True)         self.scrollAreaWidgetContents = QWidget(self.scrollArea)         self.scrollAreaWidgetContents.setLayout(self.layout)         self.scrollArea.setWidget(self.scrollAreaWidgetContents)           self.layout.addWidget(self.scrollArea)           category_folder = os.path.join(r'Desktop\MinecraftSkinEditor\clothes\alex', category)         self.image_loader_thread = ImageLoaderThread(category_folder)         self.image_loader_thread.image_loaded.connect(self.on_image_loaded)         self.image_loader_thread.start()       def on_image_loaded(self, pixmap, skin_part):         label = ClickableQLabel()         label.setPixmap(pixmap)         label.clicked.connect(lambda sp=skin_part: self.on_skin_part_click(label, sp))         self.layout.addWidget(label)       def on_skin_part_click(self, label, skin_part):         print('Clicked on skin part:', skin_part)         pixmap = label.pixmap().copy()           # Open a dialog to select the skin part image         file_dialog = QFileDialog()         file_dialog.setWindowTitle("Select Skin Part Image")         file_dialog.setFileMode(QFileDialog.FileMode.ExistingFile)         file_dialog.setNameFilter("Images (*.png *.jpg *.jpeg *.gif)")           if file_dialog.exec() == QFileDialog.DialogCode.Accepted:             image_path = file_dialog.selectedFiles()[0]             skin_part_image = cv2.imread(image_path)               # Resize the skin part image to fit the preview             resized_skin_part_image = cv2.resize(skin_part_image, (pixmap.width(), pixmap.height()), interpolation=cv2.INTER_LINEAR)               # Convert the resized skin part image to QPixmap             skin_part_qimage = QImage(resized_skin_part_image.data, resized_skin_part_image.shape[1], resized_skin_part_image.shape[0], QImage.Format_BGR888)             skin_part_pixmap = QPixmap.fromImage(skin_part_qimage)               # Paste the skin part image onto the preview image             pixmap = pixmap.copy()  # Create a copy to modify             painter = QPainter(pixmap)             painter.setCompositionMode(QPainter.CompositionMode.DestinationOver)             painter.drawPixmap(0, 0, skin_part_pixmap)             painter.end()               # Update the label with the modified image             label.setPixmap(pixmap)       def create_complete_skin(self):         skin_parts = []           # Collect the skin parts from the labels         for label in self.findChildren(ClickableQLabel):             pixmap = label.pixmap()             if pixmap is not None:                 skin_parts.append(pixmap.toImage())           # Create a blank image for the complete skin         complete_skin_width = 64         complete_skin_height = 64         complete_skin = QImage(complete_skin_width, complete_skin_height, QImage.Format_ARGB32)         complete_skin.fill(Qt.GlobalColor.transparent)           # Paste the skin parts onto the complete skin         painter = QPainter(complete_skin)         for i, skin_part in enumerate(skin_parts):             x = i % 8 * 8             y = i // 8 * 8             painter.drawImage(x, y, skin_part)         painter.end()           # Save the complete skin         save_path, _ = QFileDialog.getSaveFileName(self, "Save Complete Skin", "", "PNG Files (*.png)")         if save_path:             complete_skin.save(save_path)   class ClickableQLabel(QLabel):     clicked = pyqtSignal()       def __init__(self, parent=None):         QLabel.__init__(self, parent)       def mousePressEvent(self, event):         self.clicked.emit()   if __name__ == "__main__":     app = QApplication(sys.argv)     window = App()     window.show()     sys.exit(app.exec())

The code you provided seems to be missing an import statement for the QFileDialog.FileMode enum. Here's the corrected code:

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import sys import os import cv2 from PyQt6.QtWidgets import QApplication, QLabel, QVBoxLayout, QPushButton, QScrollArea, QWidget, QMainWindow, QGridLayout, QFileDialog from PyQt6.QtGui import QPixmap, QImage, QPainter from PyQt6.QtCore import Qt, QThread, pyqtSignal, QEvent    class App(QMainWindow):     def __init__(self, parent=None):         super(App, self).__init__(parent)         self.setWindowTitle("Character Creator")         self.setFixedSize(600, 500)         self.setStyleSheet("background-color: #3C3C3C;")            self.categories = ['shirt', 'pants', 'shoes', 'accessories', 'eyes', 'hair', 'skin-colour']  # Add more categories as needed            self.category_buttons = []         for i, category in enumerate(self.categories):             button = QPushButton(category.upper(), self)             button.move(10, 40 + i * 30)             button.setFixedSize(100, 25)             button.setStyleSheet("background-color: #1C1A1A; color: #EFEFEF;")             button.clicked.connect(lambda _, c=category: self.show_category(c))             self.category_buttons.append(button)        def show_category(self, category):         category_root = CategoryWindow(self, category)         category_root.show()    class ImageLoaderThread(QThread):     image_loaded = pyqtSignal(QPixmap, str)        def __init__(self, category_folder, parent=None):         super(ImageLoaderThread, self).__init__(parent)         self.category_folder = category_folder        def run(self):         skin_parts = self.load_skin_parts(self.category_folder)         for skin_part in skin_parts:             pixmap = QPixmap(os.path.join(self.category_folder, skin_part))             self.image_loaded.emit(pixmap, skin_part)        def load_skin_parts(self, folder):         return os.listdir(folder)    class CategoryWindow(QWidget):     def __init__(self, parent=None, category=''):         super(CategoryWindow, self).__init__(parent)         self.setWindowTitle(category.upper())         self.setFixedSize(200, 500)         self.setStyleSheet("background-color: #3C3C3C;")            self.layout = QVBoxLayout()         self.setLayout(self.layout)            self.scrollArea = QScrollArea()         self.scrollArea.setWidgetResizable(True)         self.scrollAreaWidgetContents = QWidget(self.scrollArea)         self.scrollAreaWidgetContents.setLayout(self.layout)         self.scrollArea.setWidget(self.scrollAreaWidgetContents)            self.layout.addWidget(self.scrollArea)            category_folder = os.path.join(r'Desktop\MinecraftSkinEditor\clothes\alex', category)         self.image_loader_thread = ImageLoaderThread(category_folder)         self.image_loader_thread.image_loaded.connect(self.on_image_loaded)         self.image_loader_thread.start()        def on_image_loaded(self, pixmap, skin_part):         label = ClickableQLabel()         label.setPixmap(pixmap)         label.clicked.connect(lambda sp=skin_part: self.on_skin_part_click(label, sp))         self.layout.addWidget(label)        def on_skin_part_click(self, label, skin_part):         print('Clicked on skin part:', skin_part)         pixmap = label.pixmap().copy()            # Open a dialog to select the skin part image         file_dialog = QFileDialog()         file_dialog.setWindowTitle("Select Skin Part Image")         file_dialog.setFileMode(QFileDialog.FileMode.ExistingFile)         file_dialog.setNameFilter("Images (*.png *.jpg *.jpeg *.gif)")            if file_dialog.exec() == QFileDialog.DialogCode.Accepted:             image_path = file_dialog.selectedFiles()[0]             skin_part_image = cv2.imread(image_path)                # Resize the skin part image to fit the preview             resized_skin_part_image = cv2.resize(skin_part_image, (pixmap.width(), pixmap.height()), interpolation=cv2.INTER_LINEAR)                # Convert the resized skin part image to QPixmap             skin_part_qimage = QImage(resized_skin_part_image.data, resized_skin_part_image.shape[1], resized_skin_part_image.shape[0], QImage.Format_BGR888)             skin_part_pixmap = QPixmap.fromImage(skin_part_qimage)                # Paste the skin part image onto the preview image             pixmap = pixmap.copy()  # Create a copy to modify             painter = QPainter(pixmap)             painter.setCompositionMode(QPainter.CompositionMode.DestinationOver)             painter.drawPixmap(0, 0, skin_part_pixmap)             painter.end()                # Update the label with the modified image             label.setPixmap(pixmap)        def create_complete_skin(self):         skin_parts = []            # Collect the skin parts from the labels         for label in self.findChildren(ClickableQLabel):             pixmap = label.pixmap()             if pixmap is not None:                 skin_parts.append(pixmap.toImage())            # Create a blank image for the complete skin         complete_skin_width = 64         complete_skin_height = 64         complete_skin = QImage(complete_skin_width, complete_skin_height, QImage.Format_ARGB32)         complete_skin.fill(Qt.GlobalColor.transparent)            # Paste the skin parts onto the complete skin         painter = QPainter(complete_skin)         for i, skin_part in enumerate(skin_parts):             x = i % 8 * 8             y = i // 8 * 8             painter.drawImage(x, y, skin_part)         painter.end()            # Save the complete skin         save_path, _ = QFileDialog.getSaveFileName(self, "Save Complete Skin", "", "PNG Files (*.png)")         if save_path:             complete_skin.save(save_path)    class ClickableQLabel(QLabel):     clicked = pyqtSignal()        def __init__(self, parent=None):         QLabel.__init__(self, parent)        def mousePressEvent(self, event):         self.clicked.emit()    if __name__ == "__main__":     app = QApplication(sys.argv)     window = App()     window.show()     sys.exit(app.exec())

Please make sure you have the necessary PyQt6 and OpenCV libraries installed to run this code.

[deanhystad]

This is a short example that demonstrates the problem.

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import sys from PySide6.QtWidgets import QApplication, QVBoxLayout, QScrollArea, QWidget     class CategoryWindow(QWidget):     def __init__(self, parent=None):         super().__init__(parent)         layout = QVBoxLayout(self)         scroll_area = QScrollArea()         scroll_contents = QWidget(scroll_area)         scroll_contents.setLayout(layout)         scroll_area.setWidget(scroll_contents)         layout.addWidget(scroll_area)     if __name__ == "__main__":     app = QApplication(sys.argv)     window = CategoryWindow()     window.show()     sys.exit(app.exec())

And here is the same code with a tiny change that results in the window being drawn.

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import sys from PySide6.QtWidgets import QApplication, QVBoxLayout, QScrollArea, QWidget     class CategoryWindow(QWidget):     def __init__(self, parent=None):         super().__init__(parent)         layout = QVBoxLayout(self)         scroll_area = QScrollArea()         scroll_contents = QWidget(scroll_area)         # scroll_contents.setLayout(layout)         scroll_area.setWidget(scroll_contents)         layout.addWidget(scroll_area)     if __name__ == "__main__":     app = QApplication(sys.argv)     window = CategoryWindow()     window.show()     sys.exit(app.exec())