EpicsEnumeration Class Reference

#include <epicsenumeration.h>

Inheritance diagram for EpicsEnumeration:

Public Slots
void	changeValue (struct dbr_gr_enum val)
void	caput (int val)

Signals
void	valueChanged (int)
void	valueListChanged ()
Signals inherited from EpicsObject
void	valueChanged ()

Public Member Functions
	EpicsEnumeration (QString pvName, QObject *parent=0)
virtual	~EpicsEnumeration ()
void	changeConnection (QString pv)
void	connected ()
int	value ()
QString	valueString ()
QStringList	valueList ()
Public Member Functions inherited from EpicsObject
	EpicsObject (QString pvName, QObject *parent=0, int debug=0)
virtual	~EpicsObject ()
void	changeConnection (QString pv)
int	count ()
QString	pvName ()
QString	toolTip ()
virtual void	disconnected ()
chid	channelID ()
int	debug ()
void	setDebug (int dbg)
void	settle (double t)
void	ca_pend_io (double t)

Private Member Functions
virtual caEventCallBackFunc *	get_event_handler ()

Static Private Member Functions
static void	event_handler (struct event_handler_args arg)

Private Attributes
struct dbr_gr_enum	m_Value

Additional Inherited Members
Static Public Attributes inherited from EpicsObject
static QMutex	m_Mutex
Protected Attributes inherited from EpicsObject
chid	m_ChannelID
evid	m_EventID
bool	m_HasEventHandler
int	m_Debug

Detailed Description

Definition at line 8 of file epicsenumeration.h.

Constructor & Destructor Documentation

EpicsEnumeration::EpicsEnumeration	(	QString	pvName,
		QObject *	parent = 0
	)

Definition at line 6 of file epicsenumeration.cpp.

  : EpicsObject(pvName, parent)
{
}

EpicsEnumeration::~EpicsEnumeration ( )

virtual

Definition at line 11 of file epicsenumeration.cpp.

{
}

Member Function Documentation

void EpicsEnumeration::caput ( int  val )

slot

Definition at line 96 of file epicsenumeration.cpp.

References EpicsObject::ca_pend_io(), and EpicsObject::channelID().

Referenced by EpicsA2DConverter::setGain(), and EpicsA2DConverter::setRange().

{
  ca_put(DBR_INT, channelID(), &val);
  ca_pend_io(0.5);
}

void EpicsEnumeration::changeConnection

(

QString

pv

)

void EpicsEnumeration::changeValue ( struct dbr_gr_enum  val )

slot

Definition at line 55 of file epicsenumeration.cpp.

References EpicsObject::m_Debug, EpicsObject::m_Mutex, m_Value, EpicsObject::valueChanged(), and valueListChanged().

Referenced by event_handler().

{
  if (m_Debug) {
    printf("EpicsEnumeration::changeValue\n");
  }

  QMutexLocker lock(&m_Mutex);

  int valchanged=0;
  int vlschanged=0;

  if (m_Value.value != newval.value) {
    valchanged=1;
  }
   
  if (m_Value.no_str != newval.no_str) {
    vlschanged=1;
  } else {
    for (int i=0; i<m_Value.no_str; i++) {
      if (strncmp(m_Value.strs[i],newval.strs[i],MAX_ENUM_STRING_SIZE)!=0) {
        vlschanged=1;
        break;
      }
    }
  }
   
  m_Value = newval;

  if (m_Debug) {
    printf("valchanged:%d  vlschanged:%d\n", valchanged, vlschanged);
  }

  if (vlschanged) {
    emit valueListChanged();
  }

  if (valchanged) {
    emit valueChanged(m_Value.value);
  }
}

void EpicsEnumeration::connected ( )

virtual

Reimplemented from EpicsObject.

Definition at line 15 of file epicsenumeration.cpp.

References get_event_handler(), EpicsObject::m_ChannelID, EpicsObject::m_EventID, and EpicsObject::m_HasEventHandler.

{
  if (!m_HasEventHandler) {
    SEVCHK(ca_create_subscription(DBR_GR_ENUM, 0, m_ChannelID, DBE_VALUE|DBE_ALARM, 
                                  get_event_handler(), this, &m_EventID), NULL);

    m_HasEventHandler = 1;

//     printf("Channel %s connected\n", qPrintable(pvName()));
  }
}

void EpicsEnumeration::event_handler ( struct event_handler_args  arg )

staticprivate

Definition at line 27 of file epicsenumeration.cpp.

References changeValue(), and EpicsObject::debug().

Referenced by get_event_handler().

{
  union db_access_val *pb = (union db_access_val *) args.dbr;

  struct dbr_gr_enum res;
  memset(&res, 0xff, sizeof(res));
  switch (args.type) {
  case DBR_GR_ENUM:
    res = pb->genmval;
    break;
  default:
    printf("data type %ld not supported\n", args.type);
  }

  EpicsEnumeration* e = ((EpicsEnumeration*) args.usr);

  if (e && e->debug()) {
    printf("%s Epics Enumeration Event Handler called %ld = %d\n", ca_name(args.chid), args.type, res.value);
  }

  ((EpicsEnumeration*) args.usr) -> changeValue(res);
}

caEventCallBackFunc * EpicsEnumeration::get_event_handler ( )

privatevirtual

Implements EpicsObject.

Definition at line 50 of file epicsenumeration.cpp.

References event_handler().

Referenced by connected().

{
  return &EpicsEnumeration::event_handler;
}

int EpicsEnumeration::value

(

)

Definition at line 102 of file epicsenumeration.cpp.

References EpicsObject::m_Mutex, and m_Value.

Referenced by EpicsEnumerationComboBox::EpicsEnumerationComboBox().

{
  QMutexLocker lock(&m_Mutex);

  return m_Value.value;
}

void EpicsEnumeration::valueChanged ( int  )

signal

QStringList EpicsEnumeration::valueList

(

)

Definition at line 109 of file epicsenumeration.cpp.

References m_Value.

Referenced by EpicsEnumerationComboBox::changeValueList().

{
  QStringList res;

  for (int i=0; i<m_Value.no_str; i++) {
    res << m_Value.strs[i];
  }

  return res;
}

void EpicsEnumeration::valueListChanged ( )

signal

Referenced by changeValue().

QString EpicsEnumeration::valueString

(

)

Member Data Documentation

struct dbr_gr_enum EpicsEnumeration::m_Value

private

Definition at line 36 of file epicsenumeration.h.

Referenced by changeValue(), value(), and valueList().

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The documentation for this class was generated from the following files:

• epicsenumeration.h
• epicsenumeration.cpp