LISHUZUOXUN_yangjiang/LSZXPagesLibrary/bo_plot_graph.py

from PyQt5.QtCore import Qt
from PyQt5.QtWidgets import QFrame, QLabel, QHBoxLayout, QVBoxLayout, QWidget
import pyqtgraph as pg


class BoPlotGraph(QWidget):  # 继承自 QWidget，减少一层嵌套
    def __init__(self) -> None:
        super().__init__()

        self.setWindowTitle("血氧监测")

        # 初始化各个组件
        self.title_widget = self._init_title_widget()
        self.icon_widget = self._init_icon_widget()
        self.value_label = self._init_value_label()
        self.min_label = self._init_min_label()

        # 设置标题布局
        self.title_layout = QHBoxLayout()
        self.title_layout.addWidget(self.icon_widget, 10)  # 占据 10% 的屏幕宽度
        self.title_layout.addWidget(self.title_widget, 90)  # 占据 90% 的屏幕宽度

        # 设置血氧值布局
        self.values_title_layout = QVBoxLayout()
        self.values_title_layout.addWidget(self.value_label, 50)  # 占据 50% 的垂直空间
        self.values_title_layout.addWidget(self.min_label, 50)  # 占据 50% 的垂直空间

        # 初始化绘图组件
        self.plot_widget_bo, self.plot_item_bo = self._init_plot_widget()
        self.plot_layout = QHBoxLayout()
        self.plot_layout.addWidget(self.plot_widget_bo)

        # 设置显示布局
        self.display_layout = QHBoxLayout()
        self.display_layout.addLayout(self.values_title_layout, 40)  # 占据 40% 的水平空间
        self.display_layout.addLayout(self.plot_layout, 60)  # 占据 60% 的水平空间

        # 主布局
        main_layout = QVBoxLayout()
        main_layout.addLayout(self.title_layout, 20)  # 占据 20% 的垂直空间
        main_layout.addLayout(self.display_layout, 80)  # 占据 80% 的垂直空间

        self.setLayout(main_layout)
        self.setStyleSheet(
            "background-color: #ffffff;"
            "border:1px solid #bbbbbb;"
            "border-radius:4px;"
            "margin-right: 20px;"
            "margin-top:0px"
        )

    def set_data(self, data, min_data):
        """
        设置血氧数据和最小血氧值
        :param data: 血氧数据列表
        :param min_data: 最小血氧值
        """
        self.plot_item_bo.setData(data)  # 更新绘图数据
        self.min_label.setText(f"最小血氧：{min_data}%")  # 更新最小血氧显示
        if data:
            self.value_label.setText(f'当前血氧：{data[-1]}%')  # 更新当前血氧显示

    @staticmethod
    def _init_icon_widget():
        """
        初始化图标组件
        :return: 图标 QLabel 对象
        """
        img = QLabel()
        img.setStyleSheet(
            "border-image: url(assets/bloodO2.png);"
            "background-size: contain;"
            "background-repeat: no-repeat;"
            "background-position: center;"
        )
        img.setAlignment(Qt.AlignCenter)  # 图标居中对齐
        img.setScaledContents(True)  # 图标大小自动缩放
        return img

    @staticmethod
    def _init_title_widget():
        """
        初始化标题组件
        :return: 标题 QLabel 对象
        """
        title = QLabel("血氧")
        title.setStyleSheet(
            "font: 30px \"Microsoft YaHei UI\";"  # 设置字体和大小
            "color: #2c2c2c;"  # 设置字体颜色
            "border:none;"  # 无边框
        )
        title.setContentsMargins(20, 4, 20, 4)  # 设置边距
        return title

    @staticmethod
    def _init_value_label():
        """
        初始化当前血氧显示组件
        :return: 当前血氧 QLabel 对象
        """
        value_label = QLabel('当前血氧：%')
        value_label.setFrameShape(QFrame.Box)
        value_label.setLineWidth(0)
        value_label.setStyleSheet(
            "border:none;"
            "background-color: #ececec;"
            "margin-right: 10px;"
            "margin:0px 0px 0px 0px;"
            "border-radius: 5px;"
            "font: 24px \"Microsoft YaHei UI\";"
        )
        value_label.setAlignment(Qt.AlignCenter)  # 文本居中对齐
        return value_label

    @staticmethod
    def _init_min_label():
        """
        初始化最小血氧显示组件
        :return: 最小血氧 QLabel 对象
        """
        min_label = QLabel('最小血氧：%')
        min_label.setFrameShape(QFrame.Box)
        min_label.setLineWidth(0)
        min_label.setStyleSheet(
            "border:none;"
            "background-color: #ececec;"
            "margin-right: 10px;"
            "margin:0px 0px 0px 0px;"
            "border-radius: 5px;"
            "font: 24px \"Microsoft YaHei UI\";"
        )
        min_label.setAlignment(Qt.AlignCenter)  # 文本居中对齐
        return min_label

    @staticmethod
    def _init_plot_widget():
        """
        初始化绘图组件
        :return: 绘图组件 PlotWidget 和绘图项 PlotDataItem 对象
        """
        plot_widget_bo = pg.PlotWidget()
        plot_item_bo = plot_widget_bo.plot()
        plot_widget_bo.getAxis('bottom').setTicks([])  # 不显示 x 轴坐标点
        plot_widget_bo.setBackground('w')  # 设置白色网格背景
        plot_widget_bo.showGrid(x=True, y=True)  # 显示网格
        plot_widget_bo.setYRange(0, 100)  # 设置 y 轴范围
        pen = pg.mkPen(color='#5c7bd9', width=3)  # 修改线条颜色和粗细
        plot_item_bo.setPen(pen)
        return plot_widget_bo, plot_item_bo