/*!
Act on a connection change.
Change how the label looks and change the tool tip
This is the slot used to recieve connection updates from a QCaObject based class.
*/
void QCaSpinBox::connectionChanged( QCaConnectionInfo& connectionInfo )
{
/// If connected, enable the widget if the QCa enabled property is true
if( connectionInfo.isChannelConnected() )
{
isConnected = true;
updateToolTipConnection( isConnected );
if( localEnabled )
QWidget::setEnabled( true );
}
/// If disconnected always disable the widget.
else
{
isConnected = false;
updateToolTipConnection( isConnected );
QWidget::setEnabled( false );
}
/// ??? not sure if this is right. Added as the record type was comming back as GENERIC::UNKNOWN deep in the write
/// Start a single shot read if the channel is up (ignore channel down),
/// This will allow initialisation of the widget using info from the database.
/// If subscribing, then an update will occur without having to initiated one here.
/// Note, channel up implies link up
/// Note, even though there is nothing to do to initialise the spin box if not subscribing, an
/// initial sing shot read is still performed to ensure we have valid information about the
/// variable when it is time to do a write.
if( connectionInfo.isChannelConnected() && !subscribe )
{
QCaInteger* qca = (QCaInteger*)getQcaItem(0);
qca->singleShotRead();
}
}
// Log connection issues
void monitor::connectionChanged( QCaConnectionInfo& connectionInfo )
{
if( !connectionInfo.isChannelConnected() )
*stream << QString( "%1: %2 Channel not connected\n").arg( QTime::currentTime().toString() ).arg( pv );
if( !connectionInfo.isLinkUp() )
*stream << QString( "%1: %2 Link not up\n").arg( QTime::currentTime().toString() ).arg( pv );
stream->flush();
}
/*
Act on a connection change.
Change how the label looks and change the tool tip
This is the slot used to recieve connection updates from a QCaObject based class.
*/
void QEPeriodic::connectionChanged( QCaConnectionInfo& connectionInfo, const unsigned int& variableIndex )
{
// If connected enabled the widget if required.
if( connectionInfo.isChannelConnected() )
{
isConnected = true;
updateToolTipConnection( isConnected, variableIndex );
if( localEnabled )
{
if( writeButton )
writeButton->setEnabled( true );
if( readbackLabel )
readbackLabel->setEnabled( true );
}
}
// If disconnected always disable the widget.
else
{
isConnected = false;
updateToolTipConnection( isConnected, variableIndex );
if( writeButton )
writeButton->setEnabled( false );
if( readbackLabel )
readbackLabel->setEnabled( false );
}
// Set cursor to indicate access mode.
setAccessCursorStyle();
}
/*
Act on a connection change.
Change how the label looks and change the tool tip
This is the slot used to recieve connection updates from a QCaObject based class.
*/
void QELabel::connectionChanged( QCaConnectionInfo& connectionInfo, const unsigned int& )
{
// Note the connected state
isConnected = connectionInfo.isChannelConnected();
// Display the connected state
updateToolTipConnection( isConnected );
updateConnectionStyle( isConnected );
// Signal channel connection change to any Link widgets,
// using signal dbConnectionChanged.
emitDbConnectionChanged( 0 );
}
/*
Act on a connection change.
Change how the label looks and change the tool tip
This is the slot used to recieve connection updates from a QCaObject based class.
*/
void QEGenericButton::connectionChanged( QCaConnectionInfo& connectionInfo, const unsigned int& variableIndex )
{
// Do nothing if no variable name, but there is a program to run or a new gui to open.
// Most widgets will be dissabled at this point if there is no good connection to a PV,
// but this widget may be doing other stuff (running a program of starting a GUI)
if( getSubstitutedVariableName( variableIndex ).isEmpty() )
return;
// Note the connected state
isConnected = connectionInfo.isChannelConnected();
// Display the connected state
updateToolTipConnection( isConnected, variableIndex );
updateConnectionStyle( isConnected );
}
/*!
Act on a connection change.
Change how the label looks and change the tool tip
This is the slot used to recieve connection updates from a QCaObject based class.
*/
void QCaLineEdit::connectionChanged( QCaConnectionInfo& connectionInfo )
{
/// If connected enabled the widget if required.
if( connectionInfo.isChannelConnected() )
{
isConnected = true;
updateToolTipConnection( isConnected );
if( localEnabled )
QWidget::setEnabled( true );
}
/// If disconnected always disable the widget.
else
{
isConnected = false;
updateToolTipConnection( isConnected );
QWidget::setEnabled( false );
}
}
//------------------------------------------------------------------------------
// Act on a connection change.
// Change how the label looks and change the tool tip
// This is the slot used to recieve connection updates from a QCaObject based class.
//
void QEGenericEdit::connectionChanged( QCaConnectionInfo& connectionInfo )
{
// Note the connected state
isConnected = connectionInfo.isChannelConnected();
// Note if first update has arrived (ok to set repeatedly)
if( isConnected )
{
isFirstUpdate = true;
}
// Display the connected state
updateToolTipConnection( isConnected );
updateConnectionStyle( isConnected );
// Set cursor to indicate access mode.
setAccessCursorStyle();
// Signal channel connection change to any (Link) widgets.
// using signal dbConnectionChanged.
//
emitDbConnectionChanged( 0 );
}
/*
Act on a connection change.
Change how the label looks and change the tool tip
This is the slot used to recieve connection updates from a QCaObject based class.
*/
void QESpinBox::connectionChanged( QCaConnectionInfo& connectionInfo )
{
// Note the connected state
isConnected = connectionInfo.isChannelConnected();
// Display the connected state
updateToolTipConnection( isConnected );
updateConnectionStyle( isConnected );
// !!! ??? not sure if this is right. Added as the record type was comming back as GENERIC::UNKNOWN deep in the write
// Start a single shot read if the channel is up (ignore channel down),
// This will allow initialisation of the widget using info from the database.
// If subscribing, then an update will occur without having to initiated one here.
// Note, channel up implies link up
// Note, even though there is nothing to do to initialise the spin box if not subscribing, an
// initial sing shot read is still performed to ensure we have valid information about the
// variable when it is time to do a write.
if( isConnected && !subscribe )
{
QEFloating* qca = (QEFloating*)getQcaItem(0);
qca->singleShotRead();
ignoreSingleShotRead = true;
}
}
