工控上位机控制系统通用UI框架

wndMain/pageAutoPage/sub_uiAutoPage.py

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+# 自动作业内嵌页面子类
+from PySide6.QtCore import Slot, Qt, QTimer
+from PySide6.QtWidgets import QWidget, QMessageBox, QLabel
+from PySide6.QtGui import QImage, QPixmap
+from wndCtrl.stateCtrl.clsSysState_autoproc import CStateAutoProc
+from .uiSub_AutoPage import Ui_pageAutoProc
+from msg_dict import g_uiCtrlScript, g_uiGeometrySize, g_errMsgText
+from ..camera_img_get import Camera
+import cv2  # 确保导入OpenCV
+
+
+class CSubPageAutoProc(QWidget):
+    # public:
+    def __init__(self, widgetSize: tuple[int, int], parent=None):
+        super().__init__(parent)
+        # 挂载UI界面：将当前业务类实例传入setupUi，UI组件成为实例属性
+        self.ui = Ui_pageAutoProc()
+        self.ui.setupUi(self)
+        # 按需声明对应的成员变量
+        self.szStack = widgetSize
+
+        # 摄像头相关变量
+        self.cam0 = None  # 第一个摄像头
+        self.cam1 = None  # 第二个摄像头
+        self.timer = None  # 定时器
+        self.camera_label = None  # 专门用于显示摄像头的Label，避免重复创建
+
+        pass
+
+    # 界面初始化
+    def uiInit(self) -> None:
+        self._editCtrlTitle()
+        self._screenAdapter()  # 界面自适应
+        # 添加其他和界面或控件初始化相关的操作
+        self._changeWndStyle()  # 设置成无框架边框
+        self._centerWidget()  # 居中显示
+        # ---------------------------------------------------------------
+        self._setupSignalSlotMapping()
+
+        # 添加摄像头实时图片
+        self._camera_show()
+
+        pass
+
+    # -----------------------------------------
+    # private:
+    # 初始化修改页面控件文字
+    def _editCtrlTitle(self) -> None:
+        # 修改tab页面文字
+        self.ui.tabProc.setTabText(0, g_uiCtrlScript['PAGE_AUTOPROC_TAB_0'])
+        self.ui.tabProc.setTabText(1, g_uiCtrlScript['PAGE_AUTOPROC_TAB_1'])
+
+    # 界面自适应
+    def _screenAdapter(self) -> None:
+        self.resize(self.szStack[0], self.szStack[1])
+        self.ui.tabProc.setGeometry(g_uiGeometrySize['WND_MARGIN_HORI'], g_uiGeometrySize['WND_MARGIN_VERT'],
+                                      self.szStack[0] - g_uiGeometrySize['WND_MARGIN_HORI'] * 2,
+                                      self.szStack[1] - g_uiGeometrySize['WND_MARGIN_VERT'] * 2)
+        self._adjustTabCtrls()  # 调整tab页内控件的位置及大小
+        pass
+
+    # 窗口居中显示
+    def _centerWidget(self) -> None:
+        pass
+
+    # 修改窗体属性
+    def _changeWndStyle(self) -> None:
+        self.setWindowFlags(Qt.WindowType.FramelessWindowHint)
+        pass
+
+    # 调整tab页面控件
+    def _adjustTabCtrls(self):
+        rctTemp = self.ui.grpCamera0.geometry()
+        nSize = (rctTemp.width(), rctTemp.height())
+        self.ui.grpCamera0.setGeometry(g_uiGeometrySize['WND_MARGIN_HORI'], 0, nSize[0], nSize[1])
+
+    # -------------------------------------------
+    # 建立信号槽连接
+    def _setupSignalSlotMapping(self) -> None:
+        # self.ui.btnProcStart.clicked.connect(self._onBtnProcStart)
+        self.ui.btnProcStop.clicked.connect(self._onBtnProcStop)
+        self.ui.btnReset.clicked.connect(self._onBtnReset)
+        pass
+
+    # ----------槽函数----------
+    # @Slot()
+    # def _onBtnProcStart(self):
+    #     # 启动自动作业
+    #     if g_warnState.checkSysWarning():
+    #         QMessageBox.information(self, g_uiCtrlScript['MSG_TITLE_TIPS'], g_errMsgText['ERR_SYS_WARNING'])
+    #     else:
+    #
+    #         tProcJob = CProcThread()
+    #         CStateAutoProc.setProcState(True)
+    #         tProcJob.runProc()
+    #         # 更新作业按钮的使能状态
+    #         self.ui.btnProcStart.setEnabled(False)
+    #         self.ui.btnProcStop.setEnabled(True)
+    #     pass
+
+    @Slot()
+    def _onBtnProcStop(self):
+        # 停止自动作业
+        pass
+
+    @Slot()
+    def _onBtnReset(self):
+        pass
+
+    def _camera_show(self):
+        """
+        初始化摄像头并启动实时显示
+        """
+        try:
+            # 1. 初始化摄像头（保持打开状态）
+            self.cam0 = Camera()
+            if not self.cam0._open():
+                print("[Error] Failed to open camera")
+                QMessageBox.warning(self, "摄像头错误", "无法打开摄像头，请检查设备连接！")
+                return
+
+            # 2. 初始化显示用的Label
+            self._init_camera_label()
+
+            # 3. 创建定时器，每50毫秒更新一次图像
+            self.timer = QTimer(self)
+            self.timer.timeout.connect(self._update_camera_image)
+            self.timer.start(10)  # 50ms，约20fps
+            print("[Info] Camera started successfully")
+
+        except Exception as e:
+            error_msg = f"摄像头初始化失败: {str(e)}"
+            print(f"[Error] {error_msg}")
+            QMessageBox.critical(self, "摄像头错误", error_msg)
+
+    def _init_camera_label(self):
+        """
+        初始化摄像头显示用的Label（只创建一次）
+        """
+        # 如果Label已存在，直接返回
+        if self.camera_label is not None:
+            return
+
+        # 创建Label并设置属性
+        self.camera_label = QLabel(self.ui.fraCamera0)
+        # 设置Label充满父容器fraCamera0
+        self.camera_label.setGeometry(0, 0, self.ui.fraCamera0.width(), self.ui.fraCamera0.height())
+        # 设置图像自适应缩放
+        self.camera_label.setScaledContents(True)
+        # 设置对齐方式
+        self.camera_label.setAlignment(Qt.AlignCenter)
+        # 确保Label在最上层显示
+        self.camera_label.raise_()
+
+    def _update_camera_image(self):
+        """
+        定时更新摄像头图像（修复版）
+        """
+        try:
+            if self.cam0 is None or self.camera_label is None:
+                return
+
+            # 1. 获取摄像头图像
+            img = self.cam0.get_img()
+            if img is None or img.size == 0:
+                print("[Warning] 获取到空图像")
+                return
+
+            # 2. OpenCV图像是BGR格式，需要转换为RGB
+            # 先检查图像通道数
+            if len(img.shape) == 3 and img.shape[2] == 3:
+                img_rgb = cv2.cvtColor(img, cv2.COLOR_BGR2RGB)
+            else:
+                # 灰度图像处理
+                img_rgb = img
+
+            # 3. 转换为QImage
+            h, w = img_rgb.shape[:2]
+            ch = 3 if len(img_rgb.shape) == 3 else 1
+            bytes_per_line = ch * w
+
+            if ch == 3:
+                q_img = QImage(img_rgb.data, w, h, bytes_per_line, QImage.Format_RGB888)
+            else:
+                q_img = QImage(img_rgb.data, w, h, bytes_per_line, QImage.Format_Grayscale8)
+
+            # 4. 转换为QPixmap并显示
+            pixmap = QPixmap.fromImage(q_img)
+            if not pixmap.isNull():
+                self.camera_label.setPixmap(pixmap)
+
+        except Exception as e:
+            print(f"[Error] 更新摄像头图像失败: {e}")
+            # 不中断程序，继续尝试
+
+    def resizeEvent(self, event):
+        """
+        窗口大小变化时，同步调整摄像头显示Label的大小
+        """
+        super().resizeEvent(event)
+        if self.camera_label is not None and self.ui.fraCamera0 is not None:
+            self.camera_label.setGeometry(0, 0, self.ui.fraCamera0.width(), self.ui.fraCamera0.height())
+
+    def closeEvent(self, event):
+        """
+        关闭窗口时释放摄像头资源（增强版）
+        """
+        # 停止定时器
+        if self.timer is not None and self.timer.isActive():
+            self.timer.stop()
+            self.timer.deleteLater()
+            self.timer = None
+
+        # 释放摄像头资源
+        if self.cam0 is not None:
+            self.cam0._close()
+            self.cam0 = None
+
+        if self.cam1 is not None:
+            self.cam1._close()
+            self.cam1 = None
+
+        event.accept()