In which case,the timerEvent no work?

[Wang.Mr]

class MyObject : public QObject
{
public:
    MyObject(QObject *parent = 0) : QObject(parent)
    {
    }

    void startT()
    {
        cc1 = 0,cc2=0,cc3=0;
        it1=startTimer(100);     // 50-millisecond timer
        it2=startTimer(200);   // 1-second timer
        it3=startTimer(500);  // 1-minute timer
    }
    void stopt() {killTimer(it1);cc1++;}
    void stopt1(){killTimer(it2);cc2++;}
    void stopt2(){killTimer(it3);cc3++;}
    void doSomething(){}

protected:
    int it1,it2,it3;
    int cc1,cc2,cc3;
    void timerEvent(QTimerEvent *event)
    {
        if(event->timerId()==it1)
            cc1++;
        if(event->timerId()==it2)
            cc2++;
        if(event->timerId()==it3)
            cc3++;

        if(cc1 == 100) stopt();
        if(cc2 == 60) stopt1();
        if(cc3 == 30) stopt2();

    }
};

Like this class,doSomething maybe 100 msec invoking.

[VRonin]

It's probably just me but I did not understand the question. what is the problem here?

[jsulm]

@Wang.Mr I have no idea what this code is supposed to do - it just cannot work. What is startTimer(), what is killTimer(), ...?
If you need a timer why don't you use QTimer http://doc.qt.io/qt-5/qtimer.html ?

it1=startTimer(100);     // 50-millisecond timer
it2=startTimer(200);   // 1-second timer
it3=startTimer(500);  // 1-minute timer

if 100 is 50 milliseconds, then how can 200 be a second?

[VRonin]

@jsulm said in In which case,the timerEvent no work?:

What is startTimer(), what is killTimer(), ...?

Those are QObject methods, QTimer uses them internally anyway

[jsulm]

@VRonin Yes, you're right. I thought it would be something defined in MyObject.

[Wang.Mr]

@VRonin Oh,my english too bad!That is when i call 'doSomething','timerEvent' never triggered.

[jsulm]

@Wang.Mr What is doSomething() doing? In the code you posted before it does nothing.

[Wang.Mr]

@jsulm Ok, this is my code .```

uint MChannel::unChannelCount = 0;
QByteArray MChannel::lstUseFlag;
QString MChannel::filePath;

MChannel::MChannel(QObject *parent) : QObject(parent)
{
if(lstUseFlag.count() == int(unChannelCount)){
unIqueness = unChannelCount++;
lstUseFlag.append('1');
}else{
for(int i = 0 ;i < lstUseFlag.count();i++)
{
if(lstUseFlag.at(i) == '0')
{
lstUseFlag[i] = '1';
unIqueness = i;
unChannelCount++;
break;
}
}
}

//
color = Qt::gray;
strTipInfor = QString("Wait config");
pTechnology = NULL;
pcurStep = NULL;
this->fCount = 0.0;
this->bChannelOnline = false;
this->bHaveSetupTechnology = false;
this->bHaveWarnning = false;
this->fE = 0.0;
this->fELast = 0.0;
this->fV = 0.0;
this->fVLast = 0.0;
this->Status = ChannelStatu_Stop;
this->runStatus = Channel_Work_Status_None;
this->pcurStep = NULL;
this->unCurStepRunTime = 0;
this->unCurTime = 0;
this->unLastTime = 0;
this->unTotalRunTime = 0;
this->unID = 0;
bCurrentStepFinish = false;
bHaveNextStepRequest = false;
bStartChannel = false;
bFileCreate = false;
iTimerID = 0;

}
MChannel::~MChannel()
{
if(iTimerID > 0)
killTimer(iTimerID);
if(bFileCreate )
file.close();
lstUseFlag[unID]='0';
if(pTechnology != NULL)
delete pTechnology;
}

bool MChannel::setUseTechnology(MTechnology* technology)
{
if(pTechnology != NULL)
{
delete pTechnology;
}
pTechnology = new MTechnology(technology);
bHaveSetupTechnology = true;
pdfns = &technology->dfns;
UpdateData();
return true;
}
void MChannel::UpdateData()
{
switch(runStatus )
{
case Channel_Work_Status_None:
strTipInfor = QString("通道 %1 等待确认").arg(unID);
color = Qt::lightGray;
break;
case Channel_Work_Status_Normal:
strTipInfor = "就绪";
color = QColor("lightskyblue");
break;
case Channel_Work_Status_Delay:
strTipInfor = "非正常停机";
color = ColorTechStepType_Fault;
break;
case Channel_Work_Status_NoBattery:
strTipInfor = "无电池";
color = ColorTechStepType_Fault;
break;
case Channel_Work_Status_Resev:
break;
case Channel_Work_Status_ReverseBattery:
strTipInfor = "电池接反";
color = ColorTechStepType_Fault;
break;
case Channel_Work_Status_TemperatureH:
strTipInfor = "温度过高";
color = ColorTechStepType_Fault;
break;
case Channel_Work_Status_VAPulsation:
strTipInfor = "电压电流波动";
color = ColorTechStepType_Fault;
break;
case Channel_Work_Status_Abnormal:
strTipInfor = "通道异常";
color = ColorTechStepType_Fault;
break;
case Channel_Work_Status_NeedTechnology:
strTipInfor = "请求全局参数";
color = Qt::black;
break;
case Channel_Work_Status_NeedStep:
strTipInfor = "请求工步";
color = QColor("blueviolet");
break;
case Channel_Work_Status_WFixAC:
strTipInfor = "恒流充";
color = ColorTechStepType_Charge_Fix_E;
break;
case Channel_Work_Status_WFixVC:
strTipInfor = "恒压充";
color = ColorTechStepType_Charge_Fix_V;
break;
case Channel_Work_Status_WFixAA:
strTipInfor = "恒流放";
color = ColorTechStepType_Acquittal_Fix_E;
break;
case Channel_Work_Status_WFixPC:
strTipInfor = "恒功率充";
color =QColor("greenyellow") /ColorTechStepType_Charge_Fix_P/;
break;
case Channel_Work_Status_WFixPA:
strTipInfor = "恒功率放";
color = ColorTechStepType_Acquittal_Fix_P;
break;
case Channel_Work_Status_WFixSt:
strTipInfor = "静止充";
color = QColor("brown")/ColorTechStepType_JingZhi/;
break;
case Channel_Work_Status_FinishWork:
strTipInfor = "工艺完成";
color = ColorTechStepType_Finish;
break;
}

if(bStartChannel)
{
    if(this->bHaveSetupTechnology == false)
        strTipInfor = QString("未工艺设置\n%1").arg(strTipInfor);
    else
        strTipInfor = QString(" V:%1\n I:%2\n C:%3").arg(fV).arg(fE).arg(fCount);
    //strTipInfor = QString(" V:%1\n I:%2\n C:%3").arg(fV,5,'g',4,'0').arg(fE,10,'g',4,'0').arg(fCount,10,'g',4,'0');
}

emit signalUpdatewX();

}

//update data,that is called from other place by 1mes or more fast
void MChannel::UpdateData(float fv,float fe,int tm,quint8 st)
{
int iTimeCha=0;
qreal tlen = 0;

fVLast = fV;
fELast = fE;
unLastTime = unCurTime;

fV = fv;
fE = fe;
unCurTime = tm;

iTimeCha = unCurTime - unLastTime;
if(iTimeCha < 0) iTimeCha = (-iTimeCha);
tlen = (iTimeCha) / 1000;

switch(Channel_Work_Status(st))
{
case Channel_Work_Status_Normal:
case Channel_Work_Status_NoBattery:
case Channel_Work_Status_ReverseBattery:
case Channel_Work_Status_Abnormal:
case Channel_Work_Status_VAPulsation:
case Channel_Work_Status_TemperatureH:
case Channel_Work_Status_Delay:
case Channel_Work_Status_Resev:
case Channel_Work_Status_NeedTechnology:
case Channel_Work_Status_None:
    runStatus = Channel_Work_Status(st);
    break;
case Channel_Work_Status_NeedStep:
case Channel_Work_Status_WFixAC:
case Channel_Work_Status_WFixVC:
case Channel_Work_Status_WFixAA:
case Channel_Work_Status_WFixPC:
case Channel_Work_Status_WFixPA:
case Channel_Work_Status_WFixSt:
case Channel_Work_Status_FinishWork:
{
    if(bFileCreate)
    {
        if(lastTime.elapsed() >= int(MTechnology::dfns.uInterval*1000))
        {
            lastTime.restart();
            out << QTime::currentTime().toString("hh:mm:ss:zzz") << "," << fv << "," << fe << "," << runStatus <<"\n";
            out.flush();
            file.flush();
        }
    }
    if(runStatus != Channel_Work_Status(st))
    {
        fCount = 0;
        runStatus = Channel_Work_Status(st);
        if(runStatus == Channel_Work_Status_WFixAA || runStatus == Channel_Work_Status_WFixPA)
        {
            fValFlag = -1;
        }
        else
        {
            if(runStatus == Channel_Work_Status_FinishWork)
            {
                stopTechnology();
            }
            fValFlag = 1;
        }
    }
    break;
}

}

unTotalRunTime  = timeBegin.secsTo(QDateTime::currentDateTime()) / 60;
fCount = fCount + (((tlen * fE) / 3600.0)*fValFlag);

UpdateData();

}
//record data
void MChannel::recordData()
{
#ifdef DEBUG_OUT
qDebug()<< "记录数据:" << dataFileName ;
#endif
out << QTime::currentTime().toString("hh:mm:ss") << "," << fV << "," << fE << "," << runStatus <<"\n";
out.flush();
file.flush();
}

//here,open timer
void MChannel::startTechnology()
{
QString str;
//文件名格式
dataFileName = QString("%1").arg(QDateTime::currentDateTime().toString(pdfns->strDate));

if(pdfns->bUsePortName)
    dataFileName.append(chnUIInfo->strCommAddr);
if(pdfns->bUseAddrNo)
{
    str = QString("%1").arg(chnUIInfo->uiTermAddr,3,10,QChar('0'));
    dataFileName.append(str);
}
if(pdfns->bUseBitNo)
{
    str = QString("%1").arg(chnUIInfo->uiChnAddr,5,10,QChar('0'));
    dataFileName.append(str);
}
dataFileName.append(".dat");
//工艺工步设置到当前工步
pTechnology->gotoStep(1);
pcurStep = pTechnology->getStepOf(1)->data;
bStartChannel = true;
bHaveNextStepRequest = false;
bTechnologyStepSendFinish = false;
//创建文件
if(file.isOpen())
    file.close();
file.setFileName(dataFileName);
bFileCreate = file.open(QIODevice::WriteOnly|QIODevice::Text);
if(bFileCreate)
{
    out.setDevice(&file);
    iTimerID = startTimer(int(MTechnology::dfns.uInterval*1000));
    lastTime.start();
    unCurTime = lastTime.second()*1000;
}
else
{

#ifdef DEBUG_OUT
qDebug()<< "创建记录文件失败:" << dataFileName ;
#endif
}
}

//here end timer
void MChannel::stopTechnology()
{
#ifdef DEBUG_OUT
qDebug()<< "停止记录:" << dataFileName ;
#endif
bStartChannel = false;

if(bFileCreate)
{
    if(iTimerID > 0)
        killTimer(iTimerID);
    iTimerID = 0;
    file.close();
    bFileCreate = false;
}

}
void MChannel::timerEvent( QTimerEvent* event )
{
if(event->timerId() == iTimerID)
recordData();
}