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kdelibs'KFloatValidator (./kdelibs/kdeui/knumvalidator.h:98)

class KFloatValidator : public QValidator {

  public:
    /**
      Constuctor.
    */
    KFloatValidator ( QWidget * parent, const char * name = 0 );
    /**
      Constuctor.  Also sets the minimum and maximum values.
    */
    KFloatValidator ( double bottom, double top, QWidget * parent, const char * name = 0 );
    /**
      Destructor.
    */
    virtual ~KFloatValidator ();
    /**
      Validate the text, and return the result.  Does not modify the paramaters.
    */
    virtual State validate ( QString &, int & ) const;
    /**
      Fix the text if possible, providing a valid string.  The parameter may be modified.
    */
    virtual void fixup ( QString & ) const;
    /**
      Set the minimum and maximum value allowed.
    */
    virtual void setRange ( double bottom, double top );
    /**
      Return the current minimum value allowed.
    */
    virtual double bottom () const;
    /**
      Return the current maximum value allowed.
    */
    virtual double top () const;

  protected:
    double _min;
    double _max;

};

kdelibs'KFloatValidator::KFloatValidator() (./kdelibs/kdeui/knumvalidator.cpp:145)

KFloatValidator::KFloatValidator ( QWidget * parent, const char * name )
  : QValidator(parent, name)
{
  _min = _max = 0;
}

kdelibs'KFloatValidator::KFloatValidator() (./kdelibs/kdeui/knumvalidator.cpp:151)

KFloatValidator::KFloatValidator ( double bottom, double top, QWidget * parent, const char * name )
  : QValidator(parent, name)
{
  _min = bottom;
  _max = top;
}

kdelibs'KFloatValidator::~KFloatValidator() (./kdelibs/kdeui/knumvalidator.cpp:158)

KFloatValidator::~KFloatValidator ()
{}

QValidator::State KFloatValidator::validate ( QString &str, int & ) const
{
  bool    ok;
  double  val = 0;

  QString newStr;

  newStr = str.stripWhiteSpace();

  if (newStr == QString::fromLatin1("-")) // a special case
    if ((_min || _max) && _min >= 0)
      ok = false;
    else
      return QValidator::Acceptable;
  else if (newStr == QString::fromLatin1(".")) // another special case
    return QValidator::Acceptable;
  else if (newStr.length())
    val = newStr.toDouble(&ok);
  else {
    val = 0;
    ok = true;
  }

  if (! ok)
    return QValidator::Invalid;

  if ((! _min && ! _max) || (val >= _min && val <= _max))
    return QValidator::Acceptable;

  if (_max && _min >= 0 && val < 0)
    return QValidator::Invalid;

  return QValidator::Valid;
}

kdelibs'KFloatValidator::fixup() (./kdelibs/kdeui/knumvalidator.cpp:196)

void KFloatValidator::fixup ( QString &str ) const
{
  int                dummy;
  double             val;
  QValidator::State  state;

  state = validate(str, dummy);

  if (state == QValidator::Invalid || state == QValidator::Acceptable)
    return;

  if (! _min && ! _max)
    return;

  val = str.toDouble();

  if (val < _min) val = _min;
  if (val > _max) val = _max;

  str.setNum(val);
}

kdelibs'KFloatValidator::setRange() (./kdelibs/kdeui/knumvalidator.cpp:218)

void KFloatValidator::setRange ( double bottom, double top )
{
  _min = bottom;
  _max = top;

	if (_max < _min)
		_max = _min;
}

kdelibs'KFloatValidator::bottom() (./kdelibs/kdeui/knumvalidator.cpp:227)

double KFloatValidator::bottom () const
{
  return _min;
}

kdelibs'KFloatValidator::top() (./kdelibs/kdeui/knumvalidator.cpp:232)

double KFloatValidator::top () const
{
  return _max;
}