/*
Setup common to all constructors
*/
void QELabel::setup() {
// Set up data
// This control used a single data source
setNumVariables(1);
// Set up default properties
setAllowDrop( false );
// Set the initial state
setText( "----" );
setIndent( 6 );
isConnected = false;
updateConnectionStyle( isConnected );
updateOption = UPDATE_TEXT;
// Use standard context menu
setupContextMenu();
// defaultStyleSheet = styleSheet();
// Use label signals
// --Currently none--
// Set up a connection to recieve variable name property changes
// The variable name property manager class only delivers an updated variable name after the user has stopped typing
QObject::connect( &variableNamePropertyManager, SIGNAL( newVariableNameProperty( QString, QString, unsigned int ) ), this, SLOT( useNewVariableNameProperty( QString, QString, unsigned int) ) );
}
/*
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 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;
}
}
