pyside6圆角窗口与鼠标拖动

pyside6圆角窗口与鼠标拖动

最终效果

圆角窗口

实现圆角窗口要做以下两件事

设置窗口样式

# 透明背景self.setAttribute(Qt.WA_TranslucentBackground)# 无边框self.setWindowFlag(Qt.WindowType.FramelessWindowHint)# 通过 qss 设置背景和圆角self.setStyleSheet("Window{background-color:gray;border-radius:5px;}")

重载​​paintEvent​​​

opt = QStyleOption()opt.initFrom(self)p = QPainter(self)self.style().drawPrimitive(QStyle.PE_Widget, opt, p, self)super().paintEvent(event)

重载的目的是为了让窗口使用设置的QSS去绘制背景。

实现鼠标拖动

def mousePressEvent(self, event: PySide6.QtGui.QMouseEvent) -> None: if event.button() == Qt.LeftButton: self.mouse_start_pt = event.globalPosition().toPoint() self.window_pos = self.frameGeometry().topLeft() self.drag = Truedef mouseMoveEvent(self, event: PySide6.QtGui.QMouseEvent) -> None: if self.drag: distance = event.globalPosition().toPoint() - self.mouse_start_pt self.move(self.window_pos + distance)def mouseReleaseEvent(self, event: PySide6.QtGui.QMouseEvent) -> None: if event.button() == Qt.LeftButton: self.drag = False

完整的代码

import PySide6from PySide6.QtGui import QIntValidator, Qt, QPainterfrom PySide6.QtWidgets import QApplication, QWidget, \ QVBoxLayout, QHBoxLayout, QLabel, QButtonGroup, \ QPushButton, QCheckBox, QLineEdit, QStyleOption, QStyleclass CheckBoxGroup(QButtonGroup): def checkedId(self) -> list[int]: lst = [] for btn in self.buttons(): if btn.isChecked(): lst.append(self.id(btn)) return lstclass Window(QWidget): def __init__(self): super().__init__() self.drag = None self.window_pos = None self.mouse_start_pt = None self.__set_up_ui() def paintEvent(self, event: PySide6.QtGui.QPaintEvent) -> None: opt = QStyleOption() opt.initFrom(self) p = QPainter(self) self.style().drawPrimitive(QStyle.PE_Widget, opt, p, self) super().paintEvent(event) def __set_up_ui(self): self.setAttribute(Qt.WA_TranslucentBackground) self.setWindowFlag(Qt.WindowType.FramelessWindowHint) self.setStyleSheet("Window {background-color:gray;border-radius:5px;}") v_box = QVBoxLayout(self) v_box.addWidget(QLabel("你的职业是:")) h_box = QHBoxLayout() v_box.addLayout(h_box) lst = [ QCheckBox("程序员"), QCheckBox("程序媛"), QCheckBox("程序猿"), ] qbg = CheckBoxGroup(self) qbg.setExclusive(False) self.qgb = qbg _id = 1 for qrb in lst: h_box.addWidget(qrb) qbg.addButton(qrb, _id) _id += 1 btn = QPushButton("获取职业") btn.clicked.connect(lambda: print(self.qgb.checkedId())) v_box.addWidget(btn) le = QLineEdit() le.setValidator(QIntValidator()) def mousePressEvent(self, event: PySide6.QtGui.QMouseEvent) -> None: 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: PySide6.QtGui.QMouseEvent) -> None: if self.drag: distance = event.globalPosition().toPoint() - self.mouse_start_pt self.move(self.window_pos + distance) def mouseReleaseEvent(self, event: PySide6.QtGui.QMouseEvent) -> None: if event.button() == Qt.LeftButton: self.drag = Falseapp = QApplication([])w = Window()w.show()app.exec()

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