🚀🚀🚀 Pyside6实战教程专栏目录入口：点击跳转

一、前期准备

我们采用Pyside入门实战之四中通过QTDesigner创建的界面，具体由两个Label和一个Button组件构成（含背景），如下所示：

import sys
from PySide6.QtWidgets import QMainWindow, QApplication

from ui_main import Ui_MainWindow


class MainWindow(QMainWindow, Ui_MainWindow):
    def __init__(self):
        super(MainWindow, self).__init__()
        self.setupUi(self)

if __name__ == '__main__':
    app = QApplication(sys.argv)
    win = MainWindow()
    win.show()
    app.exec()

二、鼠标触发事件

import sys
from PySide6.QtWidgets import QMainWindow, QApplication
from PySide6 import QtGui
from PySide6.QtCore import Qt

from ui_main import Ui_MainWindow


class MainWindow(QMainWindow, Ui_MainWindow):
    def __init__(self):
        super(MainWindow, self).__init__()
        self.setupUi(self)
        
		# 开启鼠标追踪
        self.setMouseTracking(True)  

    def mousePressEvent(self, event: QtGui.QMouseEvent):
        if event.button() == Qt.LeftButton:
            self.label.setText("点击了鼠标左键")

    def mouseMoveEvent(self, event: QtGui.QMouseEvent):
        self.label_2.setText(f"鼠标移动  x:{event.x()} y:{event.y()}")

    def mouseReleaseEvent(self, event: QtGui.QMouseEvent):
        if event.button() == Qt.LeftButton:
            self.label("释放了鼠标左键")


if __name__ == "__main__":
    app = QApplication(sys.argv)
    win = MainWindow()
    win.show()
    app.exec()

鼠标拖动窗口

def mousePressEvent(self, event: QtGui.QMouseEvent):
    if event.button() == Qt.LeftButton:
        self.mouse_start_pt = event.globalPosition().toPoint()
        self.window_pos = self.frameGeometry().topLeft()
        self.drag = True

def mouseMoveEvent(self, event: QtGui.QMouseEvent):
    if self.drag:
        distance = event.globalPosition().toPoint() - self.mouse_start_pt
        self.move(self.window_pos + distance)

def mouseReleaseEvent(self, event: QtGui.QMouseEvent):
    if event.button() == Qt.LeftButton:
        self.drag = False