LISHUZUOXUN_yangjiang/BaseFrontendManager/page_manager.py

import sys
from PyQt5.QtWidgets import *
from PyQt5.QtCore import Qt, QSize
from PyQt5.QtGui import QIcon
from LSZXPagesManagerLibrary.consensus import *


class PageSwitcher(QMainWindow):
    """
    页面管理器。通过向该管理器中注册界面，在界面中实现跳转到其他界面，并且传输数据。
    """

    def __init__(self):
        super().__init__()
        # 页面序号字典
        self.page_dict = dict()
        # 页面栈
        self.tag_buttons = []
        self.logo = self._init_logo_widget()
        # 创建顶部按钮布局
        self.top_layout = QHBoxLayout()
        # 创建页面切换容器
        self.stacked_widget = QStackedWidget()

        self.wifi_widget = self.init_wifi_widget()
        self.wifi_disconnect_widget = self.init_wifi_disconnect_widget()
        self.wifi_stacked_widget = QStackedWidget()
        self.wifi_stacked_widget.addWidget(self.wifi_widget)
        self.wifi_stacked_widget.addWidget(self.wifi_disconnect_widget)
        self.empty = QFrame()

        self.wifi_layout = QVBoxLayout()
        self.wifi_layout.addWidget(self.empty, 6)
        self.wifi_layout.addWidget(self.wifi_stacked_widget, 12)
        self.wifi_layout.addWidget(self.empty, 82)

        self.center_layout = QHBoxLayout()
        self.center_layout.addWidget(self.stacked_widget, 94)
        self.center_layout.addLayout(self.wifi_layout, 6)
        # 主布局
        self.main_layout = QVBoxLayout()
        self.main_layout.addLayout(self.top_layout)
        self.main_layout.addLayout(self.center_layout)
        # 创建一个中心部件，并设置布局
        self.central_widget = QWidget()
        self.central_widget.setLayout(self.main_layout)
        self.central_widget.setStyleSheet(
            "background-color: #ffffff;"
            "border:none;"
        )

    # 向管理器中增加一个界面
    # 添加页面（page_widget）、添加按钮（page_name）、把按钮和页面绑定关联，点击按钮时切换页面
    def add_page(self, page_widget, page_name):
        self.stacked_widget.addWidget(page_widget)

        tag_button = self.create_button(page_name)
        self.tag_buttons.append(tag_button)
        # 初始化时设置第一个按钮样式
        first_button = self.tag_buttons[0]
        self.change_button_style(first_button)

        tag_button.mousePressEvent = lambda event, lbl=tag_button: self.clicked_reaction(event, lbl)
        self.top_layout.addWidget(tag_button, 15)
        self.top_layout.addWidget(self.logo, 10)

    # 启动ui界面
    def start_ui(self):
        """
        启动UI
        :return:
        """
        self.setCentralWidget(self.central_widget)
        self.showMaximized()
        # self.showFullScreen()  # 设置窗口全屏显示

    # 按钮点击事件绑定切换后的页面
    def clicked_reaction(self, event, label):
        index = self.tag_buttons.index(label)
        self.stacked_widget.setCurrentIndex(index)
        for button in self.tag_buttons:
            self.button_style(button)
        self.change_button_style(label)

    def handleCurrentChanged(self, index):
        if index == 4:  # 页面 2 的索引为 1
            for button in self.tag_buttons:
                button.hide()
        else:
            for button in self.tag_buttons:
                button.show()

    # 顶部按钮
    def create_button(self, text):
        button = QLabel(text)
        button.setAlignment(Qt.AlignCenter)
        self.button_style(button)
        return button

    def button_style(self, button):
        button.setStyleSheet(
            "font: 600 30px \"Microsoft YaHei UI\";"
            "letter-spacing: 4px;"
            "padding-top: 10px;"
            "padding-bottom: 10px;"
            "margin-left: 6px;"
            "margin-right: 6px;"
        )

    def change_button_style(self, button):
        button.setStyleSheet(
            "font: 600 30px \"Microsoft YaHei UI\";"
            "letter-spacing: 4px;"
            "padding-top: 10px;"
            "padding-bottom: 10px;"
            "margin-left: 6px;"
            "margin-right: 6px;"
            "color: #409eff;"
        )

    def jump2(self, page_name, data):
        """
        用于其他页面中请求跳转到其他界面
        :param page_name: 目标跳转界面名称
        :param data: 附带的页面数据
        :return:
        """
        page = self.page_dict[page_name]
        # 更新页面数据
        page.set_data(data)
        page.refresh()
        # 执行页面跳转
        self.stacked_widget.setCurrentWidget(page)

    def back2page(self, page_name):
        pre_page = self.page_dict[page_name]
        # 执行页面跳转
        self.stacked_widget.setCurrentWidget(pre_page)

    @staticmethod
    def _init_logo_widget():
        logo = QLabel()
        logo.setStyleSheet(
            "border-image: url(assets/horizontal_logo.png);"
            "background-size: contain;"
            "background-repeat: no-repeat;"
            "background-position: center;"
            "padding-top: 10px;"
            "padding-bottom: 10px;"
        )
        logo.setAlignment(Qt.AlignCenter)
        logo.setScaledContents(True)
        return logo

    @staticmethod
    def init_wifi_widget():
        wifi_frame = QPushButton()
        icon = QIcon("assets/wifi.png")
        wifi_frame.setIconSize(QSize(70, 70))
        wifi_frame.setIcon(icon)
        wifi_frame.setStyleSheet(
            "background-color: qlineargradient("
            "spread: pad,"
            "x1: 0,"
            "y1: 0,"
            "x2: 1,"
            "y2: 1,"
            "stop: 0 rgba(113, 183, 255, 255),"
            "stop: 1 rgba(79, 149, 224, 255),"
            "stop: 2 rgba(56, 147, 242, 255));"
            "border-style: none;"
            "border-radius: 50%;"
            "height: 100px;"
        )
        return wifi_frame

    @staticmethod
    def init_wifi_disconnect_widget():
        wifi_disconnect_widget = QPushButton()
        icon = QIcon("assets/wifi.png")
        wifi_disconnect_widget.setIconSize(QSize(70, 70))
        wifi_disconnect_widget.setIcon(icon)
        wifi_disconnect_widget.setStyleSheet(
            "background-color: #c2c2c3;"
            "border-style: none;"
            "border-radius: 50%;"
            "height: 100px;"
        )
        return wifi_disconnect_widget


APP = QApplication(sys.argv)
BASE_PAGE_MANAGER = PageSwitcher()  # 管理端页面管理器


def keep_ui():
    sys.exit(APP.exec_())