QGpCoreTools::ExpressionFunction Class Reference

#include <ExpressionAction.h>

Inheritance diagram for QGpCoreTools::ExpressionFunction:

List of all members.

Public Member Functions
virtual bool	addArgument (ExpressionAction *a)
virtual ExpressionAction *	close (Type t)
	ExpressionFunction (QString name, ExpressionContext *context)
virtual ExpressionAction *	parent () const
virtual void	replaceArgument (ExpressionAction *oldA, ExpressionAction *newA)
virtual QVariant	value () const
virtual const QString &	xml_tagName () const
virtual	~ExpressionFunction ()
Static Public Attributes
static const QString	xmlExpressionFunctionTag = "ExpressionFunction"
Protected Member Functions
virtual void	xml_writeChildren (XML_WRITECHILDREN_ARGS) const
virtual void	xml_writeProperties (XML_WRITEPROPERTIES_ARGS) const

---

Constructor & Destructor Documentation

QGpCoreTools::ExpressionFunction::ExpressionFunction	(	QString	name,
		ExpressionContext *	context
	)		[inline]

{_name=name; _open=true; _currentArg=0; _context=context;}

virtual QGpCoreTools::ExpressionFunction::~ExpressionFunction

(

)

[inline, virtual]

{qDeleteAll(_args);}

---

Member Function Documentation

bool QGpCoreTools::ExpressionFunction::addArgument

(

ExpressionAction *

a

)

[virtual]

If argument is already set, the new argument is set as the current and the old one is set as the argument of the new argument. This mechanism is designed for cases where an operator with a higher priority is encountered during parse.

Implements QGpCoreTools::ExpressionAction.

References QGpCoreTools::ExpressionAction::addArgument(), QGpCoreTools::ExpressionAction::setParent(), and TRACE.

{
  TRACE;
  if(!_currentArg || a->addArgument(_currentArg)) {
    a->setParent(this);
    _currentArg=a;
    return true;
  } else return false;
}

ExpressionAction * QGpCoreTools::ExpressionFunction::close

(

ExpressionAction::Type

t

)

[virtual]

Reimplemented from QGpCoreTools::ExpressionAction.

References QGpCoreTools::ExpressionAction::_parent, QGpCoreTools::ExpressionAction::CloseBracket, QGpCoreTools::ExpressionAction::Coma, and TRACE.

{
  TRACE;
  switch (t) {
  case CloseBracket:
    if(_open) {
      if(_currentArg) {
        _args << _currentArg;
        _currentArg=0;
      }
      _open=false;
      return _parent;
    }
    break;
  case Coma:
    ASSERT(_open);
    if(_currentArg) {
      _args << _currentArg;
      _currentArg=0;
    }
    return this;
  default:
    break;
  }
  return ExpressionAction::close(t);
}

virtual ExpressionAction* QGpCoreTools::ExpressionFunction::parent

(

)

const [inline, virtual]

Reimplemented from QGpCoreTools::ExpressionAction.

{if(_open) return 0; else return _parent;}

void QGpCoreTools::ExpressionFunction::replaceArgument	(	ExpressionAction *	oldA,
		ExpressionAction *	newA
	)		[virtual]

Implements QGpCoreTools::ExpressionAction.

References QGpCoreTools::ExpressionAction::setParent(), and TRACE.

{
  TRACE;
  ASSERT(_currentArg==oldA);
  _currentArg=newA;
  newA->setParent(this);
}

virtual QVariant QGpCoreTools::ExpressionFunction::value

(

)

const [inline, virtual]

Implements QGpCoreTools::ExpressionAction.

{return _context->functionValue(_name, _args);}

virtual const QString& QGpCoreTools::ExpressionFunction::xml_tagName

(

)

const [inline, virtual]

Reimplemented from QGpCoreTools::ExpressionAction.

{return xmlExpressionFunctionTag;}

void QGpCoreTools::ExpressionFunction::xml_writeChildren

(

XML_WRITECHILDREN_ARGS

)

const [protected, virtual]

Reimplemented from QGpCoreTools::XMLClass.

References TRACE.

{
  TRACE;
  Q_UNUSED(context);
  for(QVector<ExpressionAction *>::const_iterator it=_args.begin(); it!=_args.end();++it) {
    (*it)->xml_save(s, context);
  }
}

void QGpCoreTools::ExpressionFunction::xml_writeProperties

(

XML_WRITEPROPERTIES_ARGS

)

const [protected, virtual]

Reimplemented from QGpCoreTools::XMLClass.

References TRACE, and QGpCoreTools::XMLClass::writeProperty().

{
  TRACE;
  Q_UNUSED(context);
  writeProperty(s,  "name", _name);
  writeProperty(s,  "open", _open);
}

---

Member Data Documentation

const QString QGpCoreTools::ExpressionFunction::xmlExpressionFunctionTag = "ExpressionFunction" [static]

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

• QGpCoreTools/ExpressionAction.h
• QGpCoreTools/ExpressionAction.cpp