224 lines
9.4 KiB
Python
224 lines
9.4 KiB
Python
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# -*- coding: utf-8 -*-
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"""
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事件模块完整演示
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─────────────────────────────────────────────────────────────────
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运行: python main.py
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依赖: pip install PyQt5
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─────────────────────────────────────────────────────────────────
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"""
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import logging
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from PyQt5.QtCore import Qt, pyqtSlot
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from PyQt5.QtGui import QColor, QFont
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from PyQt5.QtWidgets import (
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QMainWindow, QWidget,
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QVBoxLayout, QHBoxLayout, QTextEdit,
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QLabel, QPushButton, QTableWidget,
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QHeaderView, QSplitter,
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QGroupBox, QStatusBar
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)
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from uas.event_bus import event_bus
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from uas.event_model import Event, EventState, make_event
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# ── 事件模块 ──────────────────────────────────────────────────────
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from uas.event_type import EventType, event_registry
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# ── 处理器（触发 @on_event 注册）────────────────────────────────
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from handlers.device_handlers import (
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DeviceErrorHandler,
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DeviceTimeoutHandler,
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EquipmentFaultHandler,
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)
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logging.basicConfig(
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level = logging.DEBUG,
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format = "%(asctime)s [%(levelname)-8s] %(name)s - %(message)s",
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)
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logger = logging.getLogger("main")
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# ─────────────────────────────────────────────────────────────────
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# 主窗口
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# ─────────────────────────────────────────────────────────────────
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class EventMonitorWindow(QMainWindow):
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# 状态颜色映射
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STATE_COLORS = {
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EventState.HANDLED: QColor("#4CAF50"),
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EventState.FAILED: QColor("#f44336"),
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EventState.CANCELLED: QColor("#FF9800"),
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EventState.IGNORED: QColor("#9E9E9E"),
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EventState.PROCESSING: QColor("#2196F3"),
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EventState.PENDING: QColor("#607D8B"),
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}
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def __init__(self):
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super().__init__()
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self.setWindowTitle("🛰️ 事件监控系统 — PyQt5 EventBus 演示")
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self.resize(1200, 750)
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self._setup_bus()
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self._setup_ui()
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self._start_demo()
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# ── 总线初始化 ────────────────────────────────────────────────
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def _setup_bus(self):
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# 注册类处理器
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event_bus.register_handler(DeviceErrorHandler())
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event_bus.register_handler(DeviceTimeoutHandler())
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event_bus.register_handler(EquipmentFaultHandler())
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# 扫描 @on_event 装饰器处理器
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count = event_bus.scan_decorators()
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logger.info(f"扫描到 {count} 个装饰器处理器")
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# 动态注册自定义事件类型
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event_registry.register(
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"sensor.overflow",
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category = "device",
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description = "传感器数据溢出",
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cancellable = True,
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)
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# 连接总线信号到 UI 槽
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event_bus.event_submitted.connect(self._on_event_submitted)
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event_bus.event_handled.connect(self._on_event_handled)
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event_bus.event_failed.connect(self._on_event_failed)
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event_bus.event_ignored.connect(self._on_event_ignored)
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event_bus.stats_updated.connect(self._on_stats_updated)
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# ── UI 构建 ───────────────────────────────────────────────────
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def _setup_ui(self):
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central = QWidget()
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self.setCentralWidget(central)
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root = QVBoxLayout(central)
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root.setContentsMargins(6, 6, 6, 6)
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splitter = QSplitter(Qt.Horizontal)
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# ── 左侧：控制面板 ────────────────────────────────────────
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left = QWidget()
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left_layout = QVBoxLayout(left)
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# 统计卡片
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stats_group = QGroupBox("📊 实时统计")
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stats_layout = QHBoxLayout(stats_group)
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self._lbl_total = self._stat_label("总计", "0", "#2196F3")
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self._lbl_handled = self._stat_label("已处理", "0", "#4CAF50")
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self._lbl_failed = self._stat_label("失败", "0", "#f44336")
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stats_layout.addWidget(self._lbl_total)
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stats_layout.addWidget(self._lbl_handled)
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stats_layout.addWidget(self._lbl_failed)
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left_layout.addWidget(stats_group)
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# 事件触发按钮
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btn_group = QGroupBox("🎯 触发事件")
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btn_layout = QVBoxLayout(btn_group)
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buttons = [
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("🔴 设备错误 (E001)", self._fire_device_error),
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("⚠️ 设备警告 (高温)", self._fire_device_warning),
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("⏱️ 设备超时", self._fire_device_timeout),
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("⚙️ 装备故障 (critical)",self._fire_equipment_fault),
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("🟢 设备连接", self._fire_device_connected),
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("✅ 装备恢复", self._fire_equipment_recovered),
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("💓 系统心跳", self._fire_heartbeat),
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("🔧 自定义事件", self._fire_custom_event),
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("💥 紧急停机 (E999)", self._fire_emergency),
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]
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for text, slot in buttons:
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btn = QPushButton(text)
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btn.setMinimumHeight(32)
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btn.clicked.connect(slot)
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btn_layout.addWidget(btn)
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left_layout.addWidget(btn_group)
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# 批量测试
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batch_btn = QPushButton("🚀 批量压测 (50个事件)")
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batch_btn.setStyleSheet("background:#673AB7; color:white; font-weight:bold;")
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batch_btn.clicked.connect(self._fire_batch)
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left_layout.addWidget(batch_btn)
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left_layout.addStretch()
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splitter.addWidget(left)
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# ── 右侧：事件列表 + 日志 ─────────────────────────────────
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right = QWidget()
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right_layout = QVBoxLayout(right)
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# 事件表格
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table_group = QGroupBox("📋 事件记录")
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table_layout = QVBoxLayout(table_group)
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self._table = QTableWidget(0, 6)
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self._table.setHorizontalHeaderLabels(
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["时间", "事件类型", "来源", "优先级", "状态", "消息"]
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)
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self._table.horizontalHeader().setSectionResizeMode(QHeaderView.Stretch)
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self._table.setAlternatingRowColors(True)
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self._table.setEditTriggers(QTableWidget.NoEditTriggers)
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self._table.setSelectionBehavior(QTableWidget.SelectRows)
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table_layout.addWidget(self._table)
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right_layout.addWidget(table_group, stretch=2)
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# 日志输出
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log_group = QGroupBox("📝 处理日志")
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log_layout = QVBoxLayout(log_group)
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self._log_edit = QTextEdit()
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self._log_edit.setReadOnly(True)
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self._log_edit.setFont(QFont("Consolas", 10))
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self._log_edit.setStyleSheet(
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"background:#1e1e1e; color:#d4d4d4; border-radius:4px;"
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)
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log_layout.addWidget(self._log_edit)
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right_layout.addWidget(log_group, stretch=1)
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splitter.addWidget(right)
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splitter.setSizes([280, 900])
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root.addWidget(splitter)
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# 状态栏
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self._statusbar = QStatusBar()
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self.setStatusBar(self._statusbar)
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self._statusbar.showMessage("就绪 | EventBus 运行中")
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def _stat_label(self, title: str, value: str, color: str) -> QLabel:
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lbl = QLabel(f"<center><b style='font-size:22px;color:{color}'>{value}</b>"
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f"<br><small>{title}</small></center>")
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lbl.setMinimumWidth(80)
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lbl.setProperty("_title", title)
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lbl.setProperty("_color", color)
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return lbl
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# ── 信号槽 ────────────────────────────────────────────────────
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@pyqtSlot(object)
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def _on_event_submitted(self, event):
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self._add_table_row(event)
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self._log(f"📥 提交 | {event.type_key} | src={event.source}", "#569cd6")
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self._statusbar.showMessage(
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f"提交事件: {event.type_key} [{event.event_id[:8]}]"
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)
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@pyqtSlot(object)
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def _on_event_handled(self, event):
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self._update_table_row(event)
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results_str = " | ".join(str(r) for r in event.results)
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self._log(
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f"✅ 完成 | {event.type_key} | {event.elapsed_ms:.1f}ms | {results_str}",
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"#4ec9b0"
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)
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@pyqtSlot(object, str)
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def _on_event_failed(self, event, error):
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self._update_table_row(event)
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self._log(f"❌ 失败 | {event.type_key} | {error}", "#f44747")
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@pyqtSlot(object)
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def _on_event_ignored(self, event):
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self._update_table_row(event)
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self._log(f"⚪ 忽略 | {event.type_key} | 无处理器", "#808080")
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@pyqtSlot(int, int, int)
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def _on_stats_updated(self, total: int, handled: int, failed: int):
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self._lbl_total.setText(
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f"<center><b style='font-size:22px;color:#2196F3'>{total}</b>")
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