修改设备Ping间隔时间为每0.5秒一次

Windows/CS/Framework4.0/Toprie/Toprie/Camera.cs

@@ -67,7 +67,7 @@ namespace JoyD.Windows.CS.Toprie
             }
         
         // 显示错误的定时器
-        private System.Windows.Forms.Timer _errorDisplayTimer;
+
         
         /// <summary>
         /// 更新设计模式状态到DeviceManager
@@ -85,7 +85,9 @@ namespace JoyD.Windows.CS.Toprie
         /// 3. 最后调用更新UI
         /// </summary>
         private void UpdateInfo()
-        {
+        {   
+            // 更新Ping状态到Info文本
+            Console.WriteLine($"Ping状态更新: {(IsDevicePingable ? "可Ping通" : "不可Ping通")}");
             if (DesignMode) return;
             
             try
@@ -128,17 +130,21 @@ namespace JoyD.Windows.CS.Toprie
                             Color textColor = Color.White;
                             
                             if (isDisconnected || isReconnecting)
-                            {
+                            {   
                                 // 断开或重连状态
                                 text = isReconnecting ? "正在重连..." : "连接断开";
                                 textColor = isReconnecting ? Color.Yellow : Color.Red;
                             }
                             else if (isPaused)
-                            {
+                            {   
                                 // 暂停状态
                                 text = "暂停";
                                 textColor = Color.Red;
                             }
+                            // 添加Ping状态信息
+                            string pingStatus = IsDevicePingable ? "Ping通" : "Ping不通";
+                            string pingText = $"设备{pingStatus}";
+                            Color pingColor = IsDevicePingable ? Color.Green : Color.Red;
                             
                             // 绘制文本
                             using (Font font = new Font("Arial", 48, FontStyle.Bold))
@@ -146,8 +152,24 @@ namespace JoyD.Windows.CS.Toprie
                             {
                                 StringFormat format = new StringFormat();
                                 format.Alignment = StringAlignment.Center;
-                                format.LineAlignment = StringAlignment.Center;
+                                
-                                g.DrawString(text, font, textBrush, new RectangleF(0, 0, BUFFER_WIDTH, BUFFER_HEIGHT), format);
+                                // 将主文本位置调整到上方
+                                g.DrawString(text, font, textBrush, 
+                                    new RectangleF(0, BUFFER_HEIGHT / 4, BUFFER_WIDTH, BUFFER_HEIGHT / 3), 
+                                    format);
+                            }
+                            
+                            // 绘制Ping状态信息
+                            using (Font pingFont = new Font("Arial", 36, FontStyle.Regular))
+                            using (SolidBrush pingBrush = new SolidBrush(pingColor))
+                            {
+                                StringFormat format = new StringFormat();
+                                format.Alignment = StringAlignment.Center;
+                                
+                                // 将Ping状态文本位置放在主文本下方
+                                g.DrawString(pingText, pingFont, pingBrush, 
+                                    new RectangleF(0, BUFFER_HEIGHT * 2 / 3, BUFFER_WIDTH, BUFFER_HEIGHT / 3), 
+                                    format);
                             }
                         }
                     }
@@ -230,6 +252,9 @@ namespace JoyD.Windows.CS.Toprie
             // 初始化图像缓冲区
             InitializeImageBuffer();
             
+            // 初始化Ping定时器
+            _pingTimer = new System.Threading.Timer(PingTimer_Tick, null, Timeout.Infinite, Timeout.Infinite);
+            
             // 只有在非设计模式下才初始化设备管理器和错误定时器
             if (!DesignMode)
             {
@@ -251,7 +276,6 @@ namespace JoyD.Windows.CS.Toprie
                 catch { }
 
                 InitializeDeviceManager();
-                InitializeErrorTimer();
             }
         }
         
@@ -331,20 +355,15 @@ namespace JoyD.Windows.CS.Toprie
             }
         }
         
-        /// <summary>
+
-        /// 初始化错误显示定时器
-        /// </summary>
-        private void InitializeErrorTimer()
-        {
-            _errorDisplayTimer = new System.Windows.Forms.Timer { Interval = 3000 }; // 显示3秒后清除
-            _errorDisplayTimer.Tick += ErrorDisplayTimer_Tick;
-        }
 
         /// <summary>
         /// 启动相机
         /// </summary>
         public void StartCamera()
-        {
+        {   
+            // 启动设备Ping
+            StartDevicePing();
             if (DesignMode) return;
             try
             {
@@ -453,7 +472,9 @@ namespace JoyD.Windows.CS.Toprie
         /// 停止接收图像
         /// </summary>
         public void StopCamera()
-        {
+        {   
+            // 停止设备Ping
+            StopDevicePing();
             if (DesignMode) return;
             try
             {
@@ -471,6 +492,29 @@ namespace JoyD.Windows.CS.Toprie
 
         private bool _isPaused = false; // 暂停状态标志
         
+        // Ping相关字段
+        private System.Threading.Timer _pingTimer;
+        private bool _isDevicePingable = false;
+        private const int _pingInterval = 500; // 0.5秒Ping一次
+        
+        /// <summary>
+        /// 获取设备是否可Ping通
+        /// </summary>
+        public bool IsDevicePingable
+        {   
+            get { return _isDevicePingable; }
+            private set
+            {   
+                if (_isDevicePingable != value)
+                {   
+                    _isDevicePingable = value;
+                    Console.WriteLine($"设备Ping状态变更: {(_isDevicePingable ? "可Ping通" : "不可Ping通")}");
+                    // 状态变化时调用更新Info
+                    UpdateInfo();
+                }
+            }
+        }
+        
         /// <summary>
         /// 设备管理器图像接收事件处理
         /// </summary>
@@ -1069,82 +1113,9 @@ namespace JoyD.Windows.CS.Toprie
         {
             if (DesignMode) return;
             Console.WriteLine(message);
-            
+            // 错误消息仅写入日志即可，不需要在UI上显示
-            // 可以根据需要添加UI上的错误显示
-            // 这里简化处理，只在控制台输出
-            
-            // 检查imageBox是否存在且尺寸有效
-            if (imageBox == null || imageBox.Width <= 0 || imageBox.Height <= 0)
-            {
-                Console.WriteLine("imageBox尺寸无效，跳过错误显示图像创建");
-                return;
-            }
-            
-            // 确保使用有效的尺寸创建Bitmap
-            int width = Math.Max(100, imageBox.Width);
-            int height = Math.Max(100, imageBox.Height);
-            
-            // 如果需要在图像区域显示错误文字，可以使用以下代码
-            using (Bitmap errorBitmap = new Bitmap(width, height))
-            using (Graphics g = Graphics.FromImage(errorBitmap))
-            {
-                g.Clear(Color.Black);
-                using (Font font = new Font("Arial", 10))
-                using (Brush brush = new SolidBrush(Color.Red))
-                {
-                    SizeF textSize = g.MeasureString(message, font);
-                    PointF textLocation = new PointF(
-                        (errorBitmap.Width - textSize.Width) / 2,
-                        (errorBitmap.Height - textSize.Height) / 2);
-                    g.DrawString(message, font, brush, textLocation);
-                }
-                
-                UpdateImageOnUI(errorBitmap);
-            }
-            
-            // 启动定时器，3秒后清除错误显示
-            _errorDisplayTimer.Stop();
-            _errorDisplayTimer.Start();
         }
 
-        /// <summary>
-        /// 错误显示定时器事件
-        /// </summary>
-        private void ErrorDisplayTimer_Tick(object sender, EventArgs e)
-        {
-            if (DesignMode) return;
-            _errorDisplayTimer.Stop();
-            // 清除错误显示，恢复到等待图像状态
-            
-            // 检查imageBox是否存在且尺寸有效
-            if (imageBox == null || imageBox.Width <= 0 || imageBox.Height <= 0)
-            {
-                Console.WriteLine("imageBox尺寸无效，跳过等待图像创建");
-                return;
-            }
-            
-            // 确保使用有效的尺寸创建Bitmap
-            int width = Math.Max(100, imageBox.Width);
-            int height = Math.Max(100, imageBox.Height);
-            
-            using (Bitmap waitingBitmap = new Bitmap(width, height))
-            using (Graphics g = Graphics.FromImage(waitingBitmap))
-            {
-                g.Clear(Color.Black);
-                using (Font font = new Font("Arial", 10))
-                using (Brush brush = new SolidBrush(Color.White))
-                {
-                    string waitingText = "正在等待热图数据...";
-                    SizeF textSize = g.MeasureString(waitingText, font);
-                    PointF textLocation = new PointF(
-                        (waitingBitmap.Width - textSize.Width) / 2,
-                        (waitingBitmap.Height - textSize.Height) / 2);
-                    g.DrawString(waitingText, font, brush, textLocation);
-                }
-                
-                UpdateImageOnUI(waitingBitmap);
-            }
-        }
 
         /// <summary>
         /// 右键菜单显示前的事件处理方法
@@ -1463,6 +1434,110 @@ namespace JoyD.Windows.CS.Toprie
 
         #endregion
 
+        #region 设备Ping相关方法
+        
+        /// <summary>
+        /// Ping定时器的回调方法
+        /// </summary>
+        /// <param name="state">状态对象</param>
+        private void PingTimer_Tick(object state)
+        {   
+            if (_deviceManager != null && !string.IsNullOrEmpty(_deviceManager.IPAddress))
+            {   
+                Task.Run(() => 
+                {   
+                    bool pingResult = PingDevice(_deviceManager.IPAddress);
+                    try
+                    {   
+                        // 在线程安全的方式下更新状态
+                        if (this.InvokeRequired)
+                        {   
+                            this.Invoke(new Action<bool>(UpdatePingState), pingResult);
+                        }
+                        else
+                        {   
+                            UpdatePingState(pingResult);
+                        }
+                    }
+                    catch (ObjectDisposedException)
+                    {   
+                        // 控件可能已被释放，忽略此更新
+                    }
+                });
+            }
+        }
+        
+        /// <summary>
+        /// 执行Ping操作
+        /// </summary>
+        /// <param name="ipAddress">要Ping的IP地址</param>
+        /// <returns>是否Ping通</returns>
+        private bool PingDevice(string ipAddress)
+        {   
+            try
+            {   
+                using (var ping = new System.Net.NetworkInformation.Ping())
+                {   
+                    var reply = ping.Send(ipAddress, 2000); // 2秒超时
+                    return reply != null && reply.Status == System.Net.NetworkInformation.IPStatus.Success;
+                }
+            }
+            catch (Exception ex)
+            {   
+                Console.WriteLine($"Ping设备失败: {ex.Message}");
+                return false;
+            }
+        }
+        
+        /// <summary>
+        /// 更新Ping状态
+        /// </summary>
+        /// <param name="isPingable">是否可Ping通</param>
+        private void UpdatePingState(bool isPingable)
+        {   
+            IsDevicePingable = isPingable;
+        }
+        
+        /// <summary>
+        /// 开始设备Ping
+        /// </summary>
+        private void StartDevicePing()
+        {   
+            try
+            {   
+                if (_pingTimer != null)
+                {   
+                    _pingTimer.Change(0, _pingInterval); // 立即开始，然后按间隔执行
+                    Console.WriteLine("设备Ping已启动");
+                }
+            }
+            catch (Exception ex)
+            {   
+                Console.WriteLine($"启动设备Ping失败: {ex.Message}");
+            }
+        }
+        
+        /// <summary>
+        /// 停止设备Ping
+        /// </summary>
+        private void StopDevicePing()
+        {   
+            try
+            {   
+                if (_pingTimer != null)
+                {   
+                    _pingTimer.Change(Timeout.Infinite, Timeout.Infinite);
+                    Console.WriteLine("设备Ping已停止");
+                }
+            }
+            catch (Exception ex)
+            {   
+                Console.WriteLine($"停止设备Ping失败: {ex.Message}");
+            }
+        }
+        
+        #endregion
+
         /// <summary>
         /// 清理资源
         /// </summary>
@@ -1497,15 +1572,16 @@ namespace JoyD.Windows.CS.Toprie
                     _deviceManager = null;
                 }
                 
-                // 无论是否在设计模式下，都需要释放定时器
+
-                if (_errorDisplayTimer != null)
-                {
-                    _errorDisplayTimer.Stop();
-                    _errorDisplayTimer.Dispose();
-                    _errorDisplayTimer = null;
-                }
                 
                 // 无论是否在设计模式下，都需要释放图像资源
+                
+                // 释放Ping定时器
+                if (_pingTimer != null)
+                {   
+                    _pingTimer.Dispose();
+                    _pingTimer = null;
+                }
                 if (imageBox != null && !imageBox.IsDisposed && imageBox.Image != null)
                 {   
                     imageBox.Image.Dispose();