update 拟增加点位

test2.py

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+from PySide6.QtWidgets import QApplication, QPushButton, QMainWindow
+from PySide6.QtGui import QPainter, QLinearGradient, QColor, QFont
+from PySide6.QtCore import Qt, QRectF
+import sys
+
+class GradientButton(QPushButton):
+    def __init__(self, text, parent=None):
+        super().__init__(text, parent)
+        # 设置按钮无边框
+        self.setFlat(True)
+        # 设置按钮文本对齐方式
+
+        # 设置按钮字体
+        self.setFont(QFont("Arial", 14, QFont.Bold))
+        # 启用鼠标追踪以便在悬停时重绘
+        self.setMouseTracking(True)
+        # 当前是否悬停
+        self.hover = False
+
+    def paintEvent(self, event):
+        painter = QPainter(self)
+        painter.setRenderHint(QPainter.Antialiasing)
+
+        # 获取按钮的矩形区域
+        rect = self.rect()
+
+        # 创建线性渐变，从中心线向上下渐变
+        gradient = QLinearGradient(rect.center().x(), rect.top(), rect.center().x(), rect.bottom())
+
+
+        gradient.setColorAt(0, QColor(225,225,225))
+        gradient.setColorAt(0.5, QColor('#1A1F38'))
+        gradient.setColorAt(1, QColor(225,225,225))
+
+        brush = gradient
+        painter.setBrush(brush)
+        painter.setPen(Qt.NoPen)
+
+        # 绘制圆角矩形作为按钮背景
+        radius = 2  # 圆角半径
+        painter.drawRoundedRect(QRectF(rect), radius, radius)
+
+        # 绘制按钮文本
+        painter.setPen(QColor('#E8E9EB'))  # 设置字体为白色
+        painter.drawText(rect, Qt.AlignCenter, self.text())
+
+    def enterEvent(self, event):
+        self.hover = True
+        self.update()  # 触发重绘
+        super().enterEvent(event)
+
+    def leaveEvent(self, event):
+        self.hover = False
+        self.update()  # 触发重绘
+        super().leaveEvent(event)
+
+class MainWindow(QMainWindow):
+    def __init__(self):
+        super().__init__()
+        self.setWindowTitle("中心线性渐变按钮示例")
+        self.setFixedSize(400, 300)
+
+        # 创建自定义渐变按钮
+        self.button = GradientButton("点击我", self)
+        self.button.setGeometry(100, 130, 100, 40)
+        # 连接按钮点击事件
+        self.button.clicked.connect(self.on_button_click)
+
+    def on_button_click(self):
+        print("按钮被点击了！")
+
+if __name__ == "__main__":
+    app = QApplication(sys.argv)
+    window = MainWindow()
+    window.show()
+    sys.exit(app.exec())