feat(事件悬停) 事件悬停功能重构，可自定义显示时间

src/timelineEvent.py

@@ -4,7 +4,7 @@ import json
 from PyQt5.QtWidgets import (QApplication, QWidget, QGraphicsView, QGraphicsScene, 
                             QGraphicsTextItem, QToolTip, QVBoxLayout,
                             QTabWidget, QLabel)
-from PyQt5.QtCore import Qt, QEvent
+from PyQt5.QtCore import Qt, QEvent, QTimer, QPoint
 from PyQt5.QtGui import QPen, QBrush, QColor, QFont, QPainter
 
 class TimelineEvent:
@@ -15,6 +15,41 @@ class TimelineEvent:
         self.title = title
         self.details = details  # 详细信息字典
 
+class CustomTooltip(QWidget):
+    """自定义提示框，支持设置显示时长"""
+    def __init__(self, parent=None):
+        super().__init__(parent, Qt.ToolTip | Qt.FramelessWindowHint)
+        self.setWindowOpacity(0.95)  # 半透明
+        
+        # 设置样式
+        self.setStyleSheet("""
+            background-color: #f5f5f5;
+            border: 1px solid #ccc;
+            border-radius: 4px;
+            padding: 8px;
+        """)
+        
+        self.layout = QVBoxLayout(self)
+        self.label = QLabel()
+        self.label.setFont(QFont("SimHei", 10))
+        self.label.setTextInteractionFlags(Qt.TextSelectableByMouse)  # 允许选中文本
+        self.layout.addWidget(self.label)
+        
+        # 定时器控制隐藏
+        self.hide_timer = QTimer(self)
+        self.hide_timer.setSingleShot(True)
+        self.hide_timer.timeout.connect(self.hide)
+        
+    def setText(self, text):
+        self.label.setText(text)
+        self.adjustSize()  # 自动调整大小以适应内容
+        
+    def showAt(self, pos, duration=10000):
+        """在指定位置显示，duration为显示时长（毫秒）"""
+        self.move(pos)
+        self.show()
+        self.hide_timer.start(duration)  # 10秒后自动隐藏
+
 class TimelineGraphicsView(QGraphicsView):
     """时间线视图，实现3个事件一组的高度调整和间隔时间戳显示"""
     def __init__(self, parent=None):
@@ -54,6 +89,10 @@ class TimelineGraphicsView(QGraphicsView):
             (0, 0, 150)     # 组6 ：浅蓝
         ]
 
+        # 初始化自定义提示框
+        self.tooltip = CustomTooltip(self)
+        self.hovered_event = None  # 当前悬停的事件
+
     def wheelEvent(self, event):
         """鼠标滚轮缩放"""
         delta = event.angleDelta().y()
@@ -69,24 +108,46 @@ class TimelineGraphicsView(QGraphicsView):
             self.current_scale = new_scale
 
     def eventFilter(self, obj, event):
-        """事件悬停提示"""
-        if obj == self.viewport() and event.type() == QEvent.MouseMove:
-            scene_pos = self.mapToScene(event.pos())
-            
-            for item, event_data in self.event_items:
-                if item.contains(item.mapFromScene(scene_pos)):
-                    details_text = f"<b>{event_data.title}</b><br>"
-                    details_text += f"时间: {event_data.timestamp.strftime('%Y-%m-%d %H:%M:%S')}<br><br>"
-                    for key, value in event_data.details.items():
-                        details_text += f"{key}: {value}<br>"
-                    
-                    QToolTip.showText(event.globalPos(), details_text)
-                    return True
-            
-            QToolTip.hideText()
+        """事件过滤器，处理鼠标移动和离开"""
+        if obj == self.viewport():
+            if event.type() == QEvent.MouseMove:
+                self.handle_mouse_move(event)
+            elif event.type() == QEvent.Leave:
+                # 鼠标离开视图时隐藏提示
+                self.tooltip.hide()
+                self.hovered_event = None
         
         return super().eventFilter(obj, event)
     
+    def handle_mouse_move(self, event):
+        """处理鼠标移动，显示/隐藏提示"""
+        scene_pos = self.mapToScene(event.pos())
+        current_hover = None
+        
+        # 检查是否悬停在事件上
+        for item, event_data in self.event_items:
+            if item.contains(item.mapFromScene(scene_pos)):
+                current_hover = event_data
+                break
+        
+        if current_hover:
+            if current_hover != self.hovered_event:
+                # 显示新的提示（10秒后自动隐藏）
+                self.hovered_event = current_hover
+                details_text = f"<b>{current_hover.title}</b><br>"
+                details_text += f"时间: {current_hover.timestamp.strftime('%Y-%m-%d %H:%M:%S')}<br><br>"
+                for key, value in current_hover.details.items():
+                    details_text += f"{key}: {value}<br>"
+                
+                # 在鼠标位置附近显示提示
+                global_pos = event.globalPos()
+                self.tooltip.setText(details_text)
+                self.tooltip.showAt(QPoint(global_pos.x() + 10, global_pos.y() + 10), 10000)
+        else:
+            # 没有悬停在事件上，隐藏提示
+            self.tooltip.hide()
+            self.hovered_event = None
+
     def add_events(self, events):
         """添加事件并按组布局"""
         self.events = events