feat:解决相机无法回显的问题

This commit is contained in:
zhu-mengmeng 2025-06-30 18:24:24 +08:00
parent 486cdb0cad
commit 7da216ec58
2 changed files with 391 additions and 125 deletions

View File

@ -328,44 +328,79 @@ class CameraSettingsWidget(QObject):
self.framerate_slider.setEnabled(is_open)
def open_camera(self):
"""打开相机参考BasicDemo.py实现"""
if self.camera_manager.isOpen:
return
device_index = self.get_selected_device_index()
if device_index < 0:
# 使用父组件作为消息框的父级
parent_widget = self.parent if hasattr(self, "parent") else None
QMessageBox.warning(parent_widget, "错误", "请先选择一个有效的相机设备!")
return
self.open_button.setEnabled(False)
self.open_button.setText("打开中...")
"""打开相机"""
try:
device_index = self.get_selected_device_index()
if device_index < 0:
error_msg = "未选择相机设备"
self.signal_camera_error.emit(error_msg)
return False
logging.info(f"尝试打开相机设备,索引: {device_index}")
# 使用相机管理器打开设备
success = self.camera_manager.open_device(device_index)
if success:
self.get_camera_params()
logging.info(f"相机已成功打开")
# 更新按钮状态
self.update_controls()
# 向父窗口发送连接状态变化信号
self.signal_camera_connection.emit(True, "")
# 更新配置
from utils.config_loader import ConfigLoader
config_loader = ConfigLoader.get_instance()
config_loader.set_value('camera.enabled', True)
config_loader.save_config()
# 通知设置已更改
self.settings_changed.emit()
return True
else:
self.signal_camera_connection.emit(False, "打开相机失败")
parent_widget = self.parent if hasattr(self, "parent") else None
QMessageBox.warning(parent_widget, "错误", "打开相机失败")
error_msg = "打开相机失败"
self.signal_camera_error.emit(error_msg)
return False
except Exception as e:
parent_widget = self.parent if hasattr(self, "parent") else None
QMessageBox.critical(parent_widget, "错误", f"打开相机时发生异常: {str(e)}")
finally:
self.open_button.setText("打开相机")
self.update_controls()
error_msg = f"打开相机时发生异常: {str(e)}"
logging.error(error_msg)
self.signal_camera_error.emit(error_msg)
return False
def close_camera(self):
"""关闭相机"""
if not self.camera_manager.isOpen:
return
try:
logging.info("尝试关闭相机")
self.camera_manager.close_device()
self.signal_camera_connection.emit(False, "")
self.update_controls()
# 使用相机管理器关闭设备
self.camera_manager.close_device()
# 更新按钮状态
self.update_controls()
# 向父窗口发送连接状态变化信号
self.signal_camera_connection.emit(False, "")
# 更新配置
from utils.config_loader import ConfigLoader
config_loader = ConfigLoader.get_instance()
config_loader.set_value('camera.enabled', False)
config_loader.save_config()
# 通知设置已更改
self.settings_changed.emit()
logging.info("相机已关闭")
return True
except Exception as e:
error_msg = f"关闭相机时发生异常: {str(e)}"
logging.error(error_msg)
self.signal_camera_error.emit(error_msg)
return False
def test_camera(self):
"""测试相机(在预览窗口显示图像)"""

View File

@ -262,9 +262,8 @@ class MainWindow(MainWindowUI):
self.process_table.setContextMenuPolicy(Qt.CustomContextMenu)
self.process_table.customContextMenuRequested.connect(self.show_table_context_menu)
# 只有在相机启用时连接相机信号
if self.camera_enabled and hasattr(self, 'camera_display'):
self.camera_display.signal_camera_status.connect(self.handle_camera_status)
# 移除这里的相机信号连接在init_camera_display方法中处理
# 相机信号会在init_camera_display中连接
# 连接报表按钮点击事件
self.report_button.clicked.connect(self.on_report)
@ -307,38 +306,68 @@ class MainWindow(MainWindowUI):
self.set_inspection_columns(1, ["检验项"])
def show_main_page(self):
self.stacked_widget.setCurrentWidget(self.central_widget)
"""显示主页面"""
try:
self.stacked_widget.setCurrentWidget(self.central_widget)
# 更新检验列配置
self.update_inspection_columns()
# 先检查并更新相机状态确保UI显示与实际状态一致
self.update_camera_enabled_state()
# 加载未完成的检验数据
self._safe_load_data()
# 更新检验列配置
self.update_inspection_columns()
# 处理相机显示
if self.camera_enabled and self.camera_display:
from widgets.camera_manager import CameraManager
camera_manager = CameraManager.get_instance()
# 加载未完成的检验数据
self._safe_load_data()
# 检查相机是否已打开
if camera_manager.isOpen:
# 更新UI显示相机画面
self.update_camera_ui(True)
# 处理相机显示
if self.camera_enabled:
# 如果camera_display不存在先初始化相机显示组件
if not hasattr(self, 'camera_display') or self.camera_display is None:
logging.info("相机显示组件不存在,尝试初始化")
self.init_camera_display()
# 如果相机未在采集,则开始采集
if not camera_manager.isGrabbing:
# 使用内部方法启动相机显示
QTimer.singleShot(100, self._start_camera_display)
logging.info("主页面显示:启动相机显示")
if self.camera_display:
try:
from widgets.camera_manager import CameraManager
camera_manager = CameraManager.get_instance()
# 检查相机是否已打开
if camera_manager.isOpen:
# 更新UI显示相机画面
self.update_camera_ui(True)
# 如果相机未在采集,则开始采集
if not camera_manager.isGrabbing:
# 使用内部方法启动相机显示
QTimer.singleShot(100, self._start_camera_display)
logging.info("主页面显示:启动相机显示")
else:
# 如果相机未打开,尝试重新初始化
QTimer.singleShot(100, self.initialize_camera)
logging.info("主页面显示:尝试初始化相机")
except Exception as e:
logging.error(f"处理相机显示时发生错误: {str(e)}")
# 确保UI能正确显示占位符
if self.material_placeholder:
self.material_placeholder.setText(f"相机错误: {str(e)}")
self.update_camera_ui(False)
else:
# 如果相机未打开,尝试重新初始化
QTimer.singleShot(100, self.initialize_camera)
logging.info("主页面显示:尝试初始化相机")
# 相机功能未启用,确保正确显示占位符
if hasattr(self, 'material_placeholder') and self.material_placeholder:
self.material_placeholder.setText("相机功能已禁用")
self.update_camera_ui(False)
logging.info("相机功能已禁用,显示占位符")
# 加载托盘号列表
self.load_pallet_codes()
# 加载托盘号列表
self.load_pallet_codes()
logging.info("显示主页面")
logging.info("显示主页面")
except Exception as e:
logging.error(f"显示主页面时发生错误: {str(e)}")
# 确保基本的UI显示正常
if hasattr(self, 'material_placeholder') and self.material_placeholder:
self.material_placeholder.setText(f"初始化界面错误: {str(e)}")
self.material_placeholder.show()
def load_pallet_codes(self):
"""从托盘类型管理器加载托盘号并更新到tray_edit"""
@ -386,6 +415,24 @@ class MainWindow(MainWindowUI):
# 连接设置改变信号
self.settings_window.settings_changed.connect(self.on_settings_changed)
# 连接相机设置组件的信号
try:
# 获取相机设置组件实例
if hasattr(self.settings_window.settings_widget, 'camera_settings'):
camera_settings = self.settings_window.settings_widget.camera_settings
# 连接相机连接状态信号
camera_settings.signal_camera_connection.connect(self.handle_camera_connection)
# 连接相机参数变化信号
camera_settings.signal_camera_params_changed.connect(self.handle_camera_params_changed)
# 连接相机错误信号
camera_settings.signal_camera_error.connect(self.handle_camera_error)
logging.info("已连接相机设置组件的信号")
else:
logging.error("无法找到相机设置组件")
except Exception as e:
logging.error(f"连接相机设置组件信号时发生错误: {str(e)}")
# 显示设置窗口
self.settings_window.show()
logging.info("显示设置窗口")
@ -398,6 +445,26 @@ class MainWindow(MainWindowUI):
config_loader.load_config()
self.config = self.load_config() # 重新加载配置到 self.config
# 检查相机状态是否发生变化
logging.info("设置已变更,检查相机状态...")
try:
from widgets.camera_manager import CameraManager
camera_manager = CameraManager.get_instance()
camera_enabled_in_config = self.config.get('camera', {}).get('enabled', False)
# 检查相机实际状态与配置状态是否一致
if camera_manager.isOpen and not camera_enabled_in_config:
logging.info("检测到相机已打开但配置为禁用,更新配置")
self.update_camera_enabled_state(True)
elif not camera_manager.isOpen and camera_enabled_in_config:
logging.info("检测到相机已关闭但配置为启用,更新配置")
self.update_camera_enabled_state(False)
else:
# 即使状态一致也更新一次以确保UI正确
self.update_camera_enabled_state(camera_enabled_in_config)
except Exception as e:
logging.error(f"检查相机状态时发生错误: {str(e)}")
# 更新串口管理器配置
self.serial_manager.reload_config()
@ -679,30 +746,59 @@ class MainWindow(MainWindowUI):
def handle_camera_status(self, is_connected, message):
"""处理相机状态变化"""
if is_connected:
logging.info("相机已连接并显示")
self.update_camera_ui(True)
else:
logging.warning(f"相机显示问题: {message}")
# 更新占位符文本
try:
if is_connected:
logging.info("相机已连接并显示 - handle_camera_status")
self.update_camera_ui(True)
else:
if message:
logging.warning(f"相机显示问题: {message} - handle_camera_status")
else:
logging.warning("相机未连接 - handle_camera_status")
# 更新占位符文本
if self.material_placeholder:
self.material_placeholder.setText(f"相机错误: {message}" if message else "相机未连接")
self.update_camera_ui(False)
except Exception as e:
logging.error(f"处理相机状态变化时发生错误: {str(e)}")
# 确保在发生错误时,用户界面仍能正确显示
if self.material_placeholder:
self.material_placeholder.setText(f"相机错误: {message}" if message else "相机未连接")
self.update_camera_ui(False)
self.material_placeholder.setText(f"相机状态处理错误: {str(e)}")
self.material_placeholder.show()
if self.camera_display:
self.camera_display.hide()
def handle_camera_connection(self, is_connected, message):
"""处理相机连接状态变化"""
if is_connected:
logging.info("相机已连接")
# 如果当前在主页面,直接开始显示相机画面
if self.stacked_widget.currentWidget() == self.central_widget:
self.camera_display.start_display()
else:
if message:
logging.warning(f"相机连接失败: {message}")
try:
if is_connected:
logging.info("相机已连接")
# 更新相机启用状态
self.update_camera_enabled_state(True)
# 如果当前在主页面,直接开始显示相机画面
if self.stacked_widget.currentWidget() == self.central_widget:
if hasattr(self, 'camera_display') and self.camera_display:
self.camera_display.start_display()
else:
logging.info("相机已断开")
# 如果相机断开,确保停止显示
self.camera_display.stop_display()
if message:
logging.warning(f"相机连接失败: {message}")
else:
logging.info("相机已断开")
# 如果相机断开,确保停止显示
if hasattr(self, 'camera_display') and self.camera_display:
self.camera_display.stop_display()
# 更新相机启用状态 - 只有在明确断开时才设置为False
if not message: # 只有在主动断开时才更新状态为False
self.update_camera_enabled_state(False)
except Exception as e:
logging.error(f"处理相机连接状态变化失败: {str(e)}")
if self.material_placeholder:
self.material_placeholder.setText(f"相机连接错误: {str(e)}")
self.update_camera_ui(False)
def handle_camera_params_changed(self, exposure_time, gain, frame_rate):
"""处理相机参数变化"""
@ -2775,6 +2871,23 @@ class MainWindow(MainWindowUI):
def init_camera_display(self):
"""初始化相机显示区域"""
try:
logging.info(f"开始初始化相机显示区域配置中camera_enabled={self.camera_enabled}")
# 检查相机管理器状态,以确定相机是否实际已打开
from widgets.camera_manager import CameraManager
camera_manager = CameraManager.get_instance()
is_camera_actually_open = camera_manager.isOpen
if is_camera_actually_open and not self.camera_enabled:
logging.info("检测到相机已实际打开,但配置显示禁用,将更新相机启用状态")
self.camera_enabled = True
# 同时更新配置,确保持久化
self.config['camera'] = {'enabled': True}
from utils.config_loader import ConfigLoader
config_loader = ConfigLoader.get_instance()
config_loader.set_value('camera.enabled', True)
config_loader.save_config()
# 清理之前的组件(如果有)
if self.camera_display:
self.material_content_layout.removeWidget(self.camera_display)
@ -2792,36 +2905,49 @@ class MainWindow(MainWindowUI):
if item.widget():
item.widget().deleteLater()
# 决定是否应该启用相机功能 - 根据配置或相机实际状态
should_enable_camera = self.camera_enabled or is_camera_actually_open
# 创建占位标签
self.material_placeholder = QLabel("相机初始化中..." if self.camera_enabled else "相机功能已禁用")
self.material_placeholder = QLabel("相机初始化中..." if should_enable_camera else "相机功能已禁用")
self.material_placeholder.setAlignment(Qt.AlignCenter)
self.material_placeholder.setStyleSheet("color: #888888; background-color: #f0f0f0;")
self.material_content_layout.addWidget(self.material_placeholder)
self.material_placeholder.show()
# 创建相机显示组件
self.camera_display = CameraDisplayWidget()
# 显式连接相机状态信号
try:
# 如果已连接,先断开旧连接
self.camera_display.signal_camera_status.disconnect()
except:
pass
# 连接相机状态信号
self.camera_display.signal_camera_status.connect(self.handle_camera_status)
logging.info("已连接相机状态信号")
# 先隐藏相机组件,直到确认相机可用
self.material_content_layout.addWidget(self.camera_display)
self.camera_display.hide()
# 如果相机功能已启用,尝试初始化相机
if self.camera_enabled:
# 先不添加相机组件,直到确认相机可用时再添加
if should_enable_camera:
# 启动相机初始化过程
QTimer.singleShot(500, self.initialize_camera)
logging.info("相机初始化已安排")
else:
logging.info("相机功能已禁用,不进行初始化")
self.material_placeholder.show()
self.camera_display.hide()
self.material_placeholder.setText("相机功能已禁用")
except Exception as e:
logging.error(f"初始化相机显示区域失败: {str(e)}")
# 确保占位符显示错误信息
if self.material_placeholder:
self.material_placeholder.setText(f"相机初始化错误: {str(e)}")
self.material_placeholder.show()
def initialize_camera(self):
"""初始化相机并显示画面"""
try:
if not self.camera_enabled:
logging.info("相机功能已禁用,不进行初始化")
return
logging.info("开始初始化相机...")
@ -2830,6 +2956,13 @@ class MainWindow(MainWindowUI):
from widgets.camera_manager import CameraManager
camera_manager = CameraManager.get_instance()
# 检查相机是否已经打开
if camera_manager.isOpen:
logging.info("相机已经打开,直接开始显示")
# 立即开始显示相机画面
QTimer.singleShot(100, lambda: self._start_camera_display())
return
# 枚举设备
devices = camera_manager.enum_devices()
if not devices or len(devices) == 0:
@ -2843,9 +2976,6 @@ class MainWindow(MainWindowUI):
if success:
logging.info(f"相机已成功打开,设备索引: {device_index}")
# 更新UI
self.update_camera_ui(True)
# 立即开始显示相机画面
QTimer.singleShot(100, lambda: self._start_camera_display())
else:
@ -2855,29 +2985,37 @@ class MainWindow(MainWindowUI):
except Exception as e:
self.material_placeholder.setText("相机初始化错误")
logging.error(f"初始化相机失败: {str(e)}")
# 异常情况下更新相机状态
self.update_camera_enabled_state(False)
def _start_camera_display(self):
"""开始显示相机画面(内部方法)"""
try:
if self.camera_display and self.camera_enabled:
# 确保相机组件可见
self.camera_display.setVisible(True)
self.camera_display.raise_()
# 先从布局中移除占位符
if self.material_placeholder:
self.material_content_layout.removeWidget(self.material_placeholder)
self.material_placeholder.hide()
# 添加相机显示组件并确保其可见
self.material_content_layout.addWidget(self.camera_display)
self.camera_display.show()
# 开始显示
success = self.camera_display.start_display()
if success:
# 确保占位符隐藏
if self.material_placeholder:
self.material_placeholder.setVisible(False)
logging.info("相机显示已成功启动")
else:
if not success:
# 如果启动失败,显示占位符
self.material_content_layout.removeWidget(self.camera_display)
self.camera_display.hide()
if self.material_placeholder:
self.material_placeholder.setText("相机显示启动失败")
self.material_placeholder.setVisible(True)
self.material_content_layout.addWidget(self.material_placeholder)
self.material_placeholder.show()
logging.error("相机显示启动失败")
else:
logging.info("相机显示已成功启动")
except Exception as e:
logging.error(f"启动相机显示失败: {str(e)}")
@ -2890,19 +3028,28 @@ class MainWindow(MainWindowUI):
try:
if is_camera_ready and self.camera_enabled:
# 显示相机画面,隐藏占位符
if self.camera_display:
self.camera_display.setVisible(True)
self.camera_display.raise_() # 确保相机组件在最上层
if self.material_placeholder:
self.material_placeholder.setVisible(False)
logging.info("相机UI已更新显示相机画面")
self.material_content_layout.removeWidget(self.material_placeholder)
self.material_placeholder.hide()
if self.camera_display:
# 确保相机显示组件已添加到布局
if self.camera_display.parent() is None:
self.material_content_layout.addWidget(self.camera_display)
self.camera_display.show()
logging.info("相机UI已更新显示相机画面")
else:
# 隐藏相机画面,显示占位符
if self.camera_display:
self.camera_display.setVisible(False)
self.material_content_layout.removeWidget(self.camera_display)
self.camera_display.hide()
if self.material_placeholder:
self.material_placeholder.setVisible(True)
self.material_placeholder.raise_() # 确保占位符在最上层
# 确保占位符已添加到布局
if self.material_placeholder.parent() is None:
self.material_content_layout.addWidget(self.material_placeholder)
self.material_placeholder.show()
if not self.camera_enabled:
self.material_placeholder.setText("相机功能已禁用")
elif not is_camera_ready:
@ -2911,18 +3058,6 @@ class MainWindow(MainWindowUI):
except Exception as e:
logging.error(f"更新相机UI失败: {str(e)}")
def handle_camera_status(self, is_connected, message):
"""处理相机状态变化"""
if is_connected:
logging.info("相机已连接并显示")
self.update_camera_ui(True)
else:
logging.warning(f"相机显示问题: {message}")
# 更新占位符文本
if self.material_placeholder:
self.material_placeholder.setText(f"相机错误: {message}" if message else "相机未连接")
self.update_camera_ui(False)
@Slot(int, str)
def handle_emergency_stop(self, value, desc):
"""处理急停信号"""
@ -2971,3 +3106,99 @@ class MainWindow(MainWindowUI):
self.label_status_label.setStyleSheet("")
except Exception as e:
logging.error(f"处理急停UI更新失败: {str(e)}")
def update_camera_enabled_state(self, is_enabled=None):
"""更新相机启用状态
Args:
is_enabled: 是否启用相机如果为None则检查相机管理器状态
"""
try:
from widgets.camera_manager import CameraManager
camera_manager = CameraManager.get_instance()
# 如果未提供状态,则根据相机管理器状态确定
if is_enabled is None:
is_enabled = camera_manager.isOpen
# 更新内存中的状态
old_state = self.camera_enabled
self.camera_enabled = is_enabled
# 如果状态发生变化,记录并更新配置
if old_state != is_enabled:
logging.info(f"相机启用状态已从 {old_state} 更改为 {is_enabled}")
# 更新配置
self.config['camera'] = {'enabled': is_enabled}
from utils.config_loader import ConfigLoader
config_loader = ConfigLoader.get_instance()
config_loader.set_value('camera.enabled', is_enabled)
config_loader.save_config()
# 如果已启用,确保相机显示正确初始化
if is_enabled:
# 确保相机显示组件已正确初始化
if not hasattr(self, 'camera_display') or self.camera_display is None:
logging.info("相机启用状态更新:正在初始化相机显示组件")
self.init_camera_display()
else:
# 如果相机已经打开但界面未显示则更新UI
if camera_manager.isOpen:
logging.info("相机已打开更新UI以显示相机画面")
self.update_camera_ui(True)
# 如果相机未在采集,则开始采集
if not camera_manager.isGrabbing:
QTimer.singleShot(100, self._start_camera_display)
else:
# 如果禁用确保更新UI显示占位符
logging.info("相机已禁用更新UI以显示占位符")
if hasattr(self, 'material_placeholder') and self.material_placeholder:
self.material_placeholder.setText("相机功能已禁用")
self.update_camera_ui(False)
# 如果相机仍在采集,则停止采集
if camera_manager.isGrabbing:
if hasattr(self, 'camera_display') and self.camera_display:
self.camera_display.stop_display()
# 如果相机仍在连接,则关闭相机
if camera_manager.isOpen:
camera_manager.close_device()
else:
logging.debug(f"相机启用状态未变化,保持为 {is_enabled}")
except Exception as e:
logging.error(f"更新相机启用状态失败: {str(e)}")
def handle_camera_connection(self, is_connected, message):
"""处理相机连接状态变化"""
try:
if is_connected:
logging.info("相机已连接")
# 更新相机启用状态
self.update_camera_enabled_state(True)
# 如果当前在主页面,直接开始显示相机画面
if self.stacked_widget.currentWidget() == self.central_widget:
if hasattr(self, 'camera_display') and self.camera_display:
self.camera_display.start_display()
else:
if message:
logging.warning(f"相机连接失败: {message}")
else:
logging.info("相机已断开")
# 如果相机断开,确保停止显示
if hasattr(self, 'camera_display') and self.camera_display:
self.camera_display.stop_display()
# 更新相机启用状态 - 只有在明确断开时才设置为False
if not message: # 只有在主动断开时才更新状态为False
self.update_camera_enabled_state(False)
except Exception as e:
logging.error(f"处理相机连接状态变化失败: {str(e)}")
if self.material_placeholder:
self.material_placeholder.setText(f"相机连接错误: {str(e)}")
self.update_camera_ui(False)