/// <summary>
/// 更新UI界面显示
/// strMsg - 界面显示的提示字符
/// secondDelay - 总显示时间，单位秒，若为正则显示剩余时间，若为负则循环显示滚动字符
/// </summary>
/// <param name="strMsg"></param>
/// <param name="secondDelay"></param>
/// <returns></returns>
private CancellationTokenSource UpdateUITask(string strMsg, int secondDelay)
{
CancellationTokenSource tokenSource;
if (secondDelay > 0)
{
tokenSource = new CancellationTokenSource(secondDelay * 1000);
}
else
{
tokenSource = new CancellationTokenSource();
}
CancellationToken token = tokenSource.Token;
Task.Factory.StartNew(() => {
int total = secondDelay;
int count = 0;
while (!token.IsCancellationRequested)
{
try {
if (secondDelay > 0)
{
this.Invoke((EventHandler) delegate {
this.lblInfo.ForeColor = Color.Black;
if (count == 0)
{
this.lblInfo.Text = strMsg + "...";
m_strInfo = this.lblInfo.Text;
}
else
{
this.lblInfo.Text = strMsg + "，剩余" + (total - count).ToString() + "秒";
m_strInfo = this.lblInfo.Text;
}
});
}
else
{
string progress = "";
switch (count % 4)
{
case 0:
progress = "-";
break;
case 1:
progress = "\\";
break;
case 2:
progress = "|";
break;
case 3:
progress = "/";
break;
}
this.Invoke(new Action(() => {
this.lblInfo.Text = strMsg + "..." + progress;
m_strInfo = this.lblInfo.Text;
}));
}
} catch (ObjectDisposedException ex) {
m_log.TraceWarning(ex.Message);
}
if (secondDelay > 0)
{
Thread.Sleep(1000);
if (total > count)
{
++count;
}
}
else
{
++count;
Thread.Sleep(500);
}
}
}, token);
return(tokenSource);
}
/// <summary>
/// 获取I-7033的温度值，同步函数，会阻塞线程
/// 以string[]格式返回，[通道0, 通道1]
/// </summary>
public string[] GetTemper()
{
// 获取当前连接状态
bool bConnected = TestConnect();
// 若断线的话重连
if (!bConnected)
{
SafeClose();
bConnected = TCPClientInit();
if (!bConnected)
{
return(SplitTemper(""));
}
}
DateTime before = DateTime.Now;
TimeSpan interval;
// 发送读取温度命令
string strMsg = "#01\r";
byte[] sendMsg = Encoding.ASCII.GetBytes(strMsg);
try {
m_clientStream.Write(sendMsg, 0, sendMsg.Length);
m_log.TraceInfo("TcpClient sent: " + strMsg.Replace("\r", "\\r"));
} catch (Exception ex) {
m_log.TraceError("TcpClient sending error: " + ex.Message);
m_client.Close();
bConnected = TCPClientInit();
}
// 接收温度值
int bytesRead;
string strRecv = "";
if (bConnected)
{
try {
while (!strRecv.Contains("\r"))
{
interval = DateTime.Now - before;
if (interval.TotalMilliseconds > m_cfg.Setting.Data.Interval * TimeoutScale)
{
m_log.TraceWarning("TcpClient timeout receieved: " + strRecv.Replace("\r", "\\r"));
throw new ApplicationException("TcpClient receieving timeout");
}
while (m_clientStream.DataAvailable)
{
bytesRead = m_clientStream.Read(m_recvBuf, 0, m_bufSize);
strRecv += Encoding.ASCII.GetString(m_recvBuf, 0, bytesRead);
}
}
m_log.TraceInfo("TcpClient receieved: " + strRecv.Replace("\r", "\\r"));
} catch (Exception ex) {
m_log.TraceError("TcpClient receieving ERROR: " + ex.Message);
}
}
else
{
m_log.TraceError("TcpClient can't connect server");
}
return(SplitTemper(strRecv));
}