15. PyQt6 事件对象
2023-10-17 python 365
import sys from PyQt6.QtWidgets import QApplication, QMainWindow, QGridLayout, QLabel, QWidget from PyQt6.QtGui import QGuiApplication from PyQt6.QtCore import Qt class App(QMainWindow): def __init__(self): super().__init__() self.label = None self.text = None self.initUI() def initUI(self): self.setWindowTitle("PyQt6 事件对象") grid = QGridLayout() x = 0 y = 0 self.text = f"x:{x}, y:{y}" self.label = QLabel(self.text, self) grid.addWidget(self.label, 0, 0, Qt.AlignmentFlag.AlignTop) self.setMouseTracking(True) w = QWidget() w.setLayout(grid) self.setCentralWidget(w) self.setGeometry(100, 100, 400, 300) self.center() def mouseMoveEvent(self, e): x = int(e.position().x()) y = int(e.position().y()) text = f"x:{x}, y:{y}" self.label.setText(text) 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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