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Do not access ui widgets after the UI has been destroyed

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During  orderly close down  the UI  can  be destroyed  while Rx  audio
blocks are  still being  delivered. Therefore the  UI pointer  must be
checked  in MainWindow::datasink  before attempting  to access  the UI
widgets.

git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6683 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
This commit is contained in:
Bill Somerville 2016-05-17 20:45:40 +00:00
parent 22a9195326
commit a63e906cbb
1 changed files with 7 additions and 7 deletions
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14
mainwindow.cpp
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@ -938,7 +938,7 @@ void MainWindow::dataSink(qint64 frames)
QString t;
m_pctZap=m_nzap*100.0/m_nsps; // TODO: this is currently redundant
t.sprintf(" Rx noise: %5.1f ",m_px);
ui->signal_meter_widget->setValue(m_px); // Update thermometer
if (ui) ui->signal_meter_widget->setValue(m_px); // Update thermometer
if(m_monitoring || m_diskData) {
m_wideGraph->dataSink2(s,m_df3,m_ihsym,m_diskData);
}
@ -976,7 +976,7 @@ void MainWindow::dataSink(qint64 frames)
t.sprintf("%3d %7.1f %7.1f %7.1f %7.1f %3d",echocom_.nsum,xlevel,sigdb,
dfreq,width,nqual);
t=QDateTime::currentDateTimeUtc().toString("hh:mm:ss ") + t;
ui->decodedTextBrowser->appendText(t);
if (ui) ui->decodedTextBrowser->appendText(t);
if(m_echoGraph->isVisible()) m_echoGraph->plotSpec();
m_nclearave=0;
//Don't restart Monitor after an Echo transmission
@ -1039,12 +1039,12 @@ void MainWindow::dataSink(qint64 frames)
QString t3=cmnd;
int i1=cmnd.indexOf("/wsprd ");
cmnd=t3.mid(0,i1+7) + t3.mid(i1+7);
ui->DecodeButton->setChecked (true);
if (ui) ui->DecodeButton->setChecked (true);
p1.start(QDir::toNativeSeparators(cmnd));
m_messageClient->status_update (m_freqNominal, m_mode, m_hisCall,
QString::number (ui->rptSpinBox->value ()),
m_modeTx, ui->autoButton->isChecked (),
m_transmitting, (m_decoderBusy = true));
if (ui) m_messageClient->status_update (m_freqNominal, m_mode, m_hisCall,
QString::number (ui->rptSpinBox->value ()),
m_modeTx, ui->autoButton->isChecked (),
m_transmitting, (m_decoderBusy = true));
}
m_rxDone=true;
}