如何做出炒股软件附图指标的那种小窗口

我去试一下，看看能不能多窗口联动绘图

import sys from PySide6.QtCore import from PySide6.QtGui import from PySide6.QtWidgets import * class MainWindow(QMainWindow): # xy = Signal(float, float) def init(self): super().init() self.drawing_widget2 = DrawingWidget2() self.drawing_widget1 = DrawingWidget() self.setMouseTracking(True) self.x, self.y = 0, 0 # self.xy.connect(self.drawing_widget1.update_1) # self.xy.connect(self.drawing_widget2.update_2) self.init_ui() def init_ui(self): self.setWindowTitle("主窗口 B") screen = QApplication.primaryScreen().geometry() self.width, self.height = screen.width()//2, screen.height()//2 self.setGeometry(0, 0, self.width, self.height) self.mdi_area = QMdiArea() self.setCentralWidget(self.mdi_area) # 创建第一个副窗口并添加绘图控件 self.child_window = QMdiSubWindow() # self.drawing_widget1 = DrawingWidget() self.child_window.setWidget(self.drawing_widget1) self.child_window.setWindowTitle("副窗口 A") self.mdi_area.addSubWindow(self.child_window) # 创建第二个副窗口并添加绘图控件 self.child_window1 = QMdiSubWindow() # self.drawing_widget2 = DrawingWidget2() self.child_window1.setWidget(self.drawing_widget2) self.child_window1.setWindowTitle("副窗口 B") self.mdi_area.addSubWindow(self.child_window1) def resizeEvent(self, event): size = event.size() new_width = size.width()//2 new_height = size.height()//2 self.child_window.setGeometry(0, 0, new_width, new_height) self.child_window1.setGeometry(0, new_height, new_width, new_height) def mouseMoveEvent(self, event): super().mouseMoveEvent(event) self.x = event.position().x() self.y = event.position().y() # self.xy.emit(self.x, self.y) self.drawing_widget2.update_2(self.x, self.y) self.drawing_widget1.update_1(self.x, self.y) # self.update() # 触发重绘 # print(self.x, 'zzzzzzzzzz') class DrawingWidget2(QWidget): def init(self, parent=None): super().init(parent) self.x, self.y = None, None def text_begin(self, qp, color, font, num, x, y, form): qp.save() qp.begin(self) qp.setPen(QColor(color)) qp.setFont(QFont(font, num)) qp.drawText(x, y, form) return qp def paintEvent(self, event): qp = QPainter(self) qp.setRenderHint(QPainter.RenderHint.Antialiasing) # 开启反锯齿 self.text_begin(qp, Qt.red, 'Verdana', 10, 0, self.height() / 2, f'{self.x}') qp.restore() print(self.x, 'aaaaaa') def update_2(self, x, y): self.x, self.y = x, y self.x_y() self.update() def x_y(self): if self.x: return self.x, self.y class DrawingWidget(QWidget): def init(self, parent=None): super().init(parent) self.x, self.y = None, None def text_begin(self, qp, color, font, num, x, y, form): qp.save() qp.begin(self) qp.setPen(QColor(color)) qp.setFont(QFont(font, num)) qp.drawText(x, y, form) return qp def paintEvent(self, event): qp = QPainter(self) qp.setRenderHint(QPainter.RenderHint.Antialiasing) # 开启反锯齿 self.text_begin(qp, Qt.red, 'Verdana', 10, 0, self.height() / 2, f'{self.x}') qp.restore() print(self.x) def update_1(self, x, y): self.x, self.y = x, y self.x_y() self.update() def x_y(self): if self.x: return self.x, self.y app = QApplication(sys.argv) main_window = MainWindow() main_window.show() sys.exit(app.exec()) 需要在主窗口界面一直按住鼠标左键，才会实时更新鼠标的位置，一开始在子窗口内按住鼠标左键则不会跟踪鼠标状态， 注释掉两个副窗口后，则不需要一直按住鼠标左键就可以实时更新鼠标位置，如何在任意一个窗口内都可以实时跟踪鼠标位置，不需要一直按住鼠标左键？