161 lines
7.1 KiB
Python
161 lines
7.1 KiB
Python
# coding: utf-8
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from typing import List
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from PySide6.QtCore import Qt, Signal, QEasingCurve, QUrl, QSize, QTimer, QEvent, QThread
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from PySide6.QtGui import QIcon, QDesktopServices, QColor, QPalette, QBrush, QImage
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from PySide6.QtWidgets import (QApplication, QHBoxLayout, QVBoxLayout,
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QFrame, QWidget, QSpacerItem, QSizePolicy, QMainWindow, QPushButton)
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from system_nav_bar import SystemNavBar
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from bottom_control_widget import BottomControlWidget
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from weight_dialog import WeightDetailsDialog
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from opcua_client import OpcuaClient
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class MainWindow(QWidget):
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def __init__(self):
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super().__init__()
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self.initWindow()
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self.createSubWidgets() # 创建子部件
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self.setupLayout() # 设置布局
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self.init_opc_client() # 初始化OPC客户端
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self.bind_signals() # 绑定信号槽
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def initWindow(self):
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"""初始化窗口基本属性"""
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self.setWindowTitle("中交三航主界面") # 设置窗口标题
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# 触摸屏尺寸为 1280*800
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self.setMinimumSize(1280, 800)
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self.setObjectName("MainWindow")
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# Qt.FramelessWindowHint
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self.setWindowFlags(Qt.FramelessWindowHint) # 无边框窗口
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# 设置主界面背景图片
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try:
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self.background_image = QImage("主界面背景.png")
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if self.background_image.isNull():
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raise Exception("图片为空，可能路径错误或格式不支持")
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# print("图片加载成功")
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except Exception as e:
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print(f"主界面背景图片加载失败: {e}")
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self.background_image = None
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return # 加载背景失败
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self.update_background()
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def createSubWidgets(self):
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"""创建所有子部件实例"""
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self.system_nav_bar = SystemNavBar() # 最上方：系统导航栏
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self.bottom_control_widget = BottomControlWidget() # 最下方： 控制的按钮 （系统诊断、系统中心等）
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# 上料斗、下料斗重量显示
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self.weight_dialog1 = WeightDetailsDialog(self, title="上料斗重量")
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self.weight_dialog2 = WeightDetailsDialog(self, title="下料斗重量")
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def setupLayout(self):
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"""设置垂直布局，从上到下排列部件"""
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main_layout = QVBoxLayout(self) # 主布局：垂直布局
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main_layout.setSpacing(0) # 部件间距0px
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main_layout.setContentsMargins(0, 0, 0, 0) # 左上右下边距0px
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# 添加最上方的 系统导航栏（包括系统标题、中交三航的logo等）
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main_layout.addWidget(self.system_nav_bar, alignment=Qt.AlignTop)
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# 添加中间内容区
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main_layout.addWidget(self.weight_dialog1, alignment=Qt.AlignCenter)
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main_layout.addWidget(self.weight_dialog2, alignment=Qt.AlignCenter)
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# 关闭按钮
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self.system_nav_bar.msg_container.close_btn.clicked.connect(self.close)
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# 将布局应用到主窗口
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self.setLayout(main_layout)
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def update_background(self):
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"""更新主界面背景图片"""
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if self.background_image and not self.background_image.isNull():
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palette = self.palette()
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# 按当前窗口尺寸缩放图片
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scaled_image = self.background_image.scaled(
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self.size(),
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Qt.IgnoreAspectRatio,
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Qt.SmoothTransformation
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)
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palette.setBrush(QPalette.Window, QBrush(scaled_image))
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self.setPalette(palette)
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self.setAutoFillBackground(True)
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def resizeEvent(self, e):
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"""窗口大小变化时的回调"""
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super().resizeEvent(e)
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self.update_background() # 重新加载背景图片
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def keyPressEvent(self, event):
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if event.key() == Qt.Key_Escape: # 按下Esc键, 退出界面
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self.close()
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super().keyPressEvent(event)
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# -------------------
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# OPC UA 客户端初始化
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# -------------------
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def init_opc_client(self):
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"""初始化 OPC UA 客户端并启动线程（避免阻塞UI）"""
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self.Opcua_client = OpcuaClient(self) # 创建 OPC UA 客户端实例
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# 创建独立线程运行 OPC UA 客户端（避免阻塞UI线程）
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self.opc_thread = QThread()
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self.Opcua_client.moveToThread(self.opc_thread)
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self.opc_thread.started.connect(self.Opcua_client.start_connect) # 线程启动后触发客户端连接
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self.opc_thread.start() # 启动线程
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# ---------------
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# OPC UA 信号绑定与数据更新
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# ---------------
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def bind_signals(self):
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"""绑定TCP信号到弹窗更新函数"""
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self.Opcua_client.weight_updated.connect(self.update_weight_dialogs) # 绑定更新重量信息的信号槽
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# 连接状态信号：更新状态图标
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self.Opcua_client.connection_status_changed.connect(self.update_connection_status)
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# 上料斗重量信息更新失败信号：更新状态图标
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self.Opcua_client.upper_weight_error.connect(self.upper_weight_status) # 重量信息更新失败信号
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# 下料斗重量信息更新失败信号：更新状态图标
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self.Opcua_client.down_weight_error.connect(self.down_weight_status) # 重量信息更新失败信号
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# 启动 TCP 连接
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print(f"客户端启动，自动连接服务端{self.Opcua_client.opc_server_url}")
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def down_weight_status(self, is_error):
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"""发送上料斗错误信息，更新连接状态"""
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self.weight_dialog2._update_status_icon2(is_error)
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def upper_weight_status(self, is_error):
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"""发送下料斗错误信息，更新连接状态"""
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self.weight_dialog1._update_status_icon2(is_error)
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def update_connection_status(self, is_connected):
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"""根据服务端是否连接，更新连接状态"""
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self.weight_dialog1._update_status_icon1(is_connected)
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self.weight_dialog2._update_status_icon1(is_connected)
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def update_weight_dialogs(self, data):
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"""更新上料斗、下料斗重量显示"""
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# 上料斗重量（对应字段 hopper_up_weight,需与服务器一致）
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up_weight = data.get("hopper_up_weight", 0)
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self.weight_dialog1.update_weight(up_weight)
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# 下料斗重量（对应字段 hopper_down_weight,需与服务器一致）
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down_weight = data.get("hopper_down_weight", 0)
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self.weight_dialog2.update_weight(down_weight)
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def closeEvent(self, event):
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"""窗口关闭时，停止 OPC UA 客户端和线程（避免资源泄露）"""
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if hasattr(self, 'Opcua_client'):
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self.Opcua_client.stop() # 停止客户端（断开连接、停止定时器）
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if hasattr(self, 'opc_thread') and self.opc_thread.isRunning():
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self.opc_thread.quit() # 退出线程
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self.opc_thread.wait(2000) # 等待线程退出（最多2秒）
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event.accept()
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if __name__ == "__main__":
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import sys
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app = QApplication([])
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window = MainWindow()
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# window.show() # 显示主界面
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window.showFullScreen() # 全屏显示主界面
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sys.exit(app.exec())
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