19. PyQt6 QColorDialog
2023-10-17 python 339
import sys from PyQt6.QtWidgets import QApplication, QMainWindow, QPushButton, QFrame, QColorDialog from PyQt6.QtGui import QGuiApplication, QColor class App(QMainWindow): def __init__(self): super().__init__() self.btn = None self.frame = None self.initUI() def initUI(self): self.setWindowTitle("PyQt6 QColorDialog") color = QColor(0, 0, 0) self.btn = QPushButton("选择颜色", self) self.btn.move(20, 20) self.btn.clicked.connect(self.showDialog) self.frame = QFrame(self) self.frame.setStyleSheet("QWidget {background-color:%s}" % color.name()) self.frame.setGeometry(130, 22, 450, 350) self.setGeometry(100, 100, 400, 300) self.center() def showDialog(self): color = QColorDialog.getColor() if color.isValid(): self.frame.setStyleSheet("QWidget {background-color:%s}" % color.name()) def center(self): qr = self.frameGeometry() cp = QGuiApplication.primaryScreen().availableGeometry().center() qr.moveCenter(cp) self.move(qr.topLeft()) if __name__ == "__main__": app = QApplication(sys.argv) cls_app = App() cls_app.show() sys.exit(app.exec())
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