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/***************************************************************************
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qgsfieldvalidator.h - description
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-------------------
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begin : March 2011
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copyright : (C) 2011 by SunilRajKiran-kCube
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email : [email protected]
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adapted version of QValidator for QgsField
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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/* $Id$ */
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#ifndef QGSFIELDVALIDATOR_H
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#define QGSFIELDVALIDATOR_H
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#include <QMessageBox>
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#include <QValidator>
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#include <QLocale>
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#include <QVariant>
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#include "qgslogger.h"
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#include "qgslonglongvalidator.h"
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#include "qgsfield.h"
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class GUI_EXPORT QgsFieldValidator : public QValidator
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{
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Q_OBJECT
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public:
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QgsFieldValidator(QObject *parent, const QgsField &field, int t, int b):QValidator(parent)
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{
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fieldLength = field.length();
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fieldPrecision = field.precision();
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fieldType = field.type();
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switch(fieldType)
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{
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case QVariant::Int :
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validator = new QIntValidator(b, t, parent);
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break;
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case QVariant::Double :
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validator = new QDoubleValidator(parent);
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break;
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case QVariant::LongLong :
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validator = new QgsLongLongValidator(b, t, parent);
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break;
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default:
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validator = 0;
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}
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}
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QgsFieldValidator(QObject *parent, const QgsField &field):QValidator(parent)
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{
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fieldLength = field.length();
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fieldPrecision = field.precision();
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fieldType = field.type();
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switch(fieldType)
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{
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case QVariant::Int :
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validator = new QIntValidator(parent);
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break;
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case QVariant::Double :
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validator = new QDoubleValidator(parent);
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break;
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case QVariant::LongLong :
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validator = new QgsLongLongValidator(parent);
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break;
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default:
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validator = 0;
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}
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}
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~QgsFieldValidator()
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{
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delete validator;
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}
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QValidator::State validate(QString &s, int &i) const
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{
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if(validator && validator->validate(s, i) == Invalid)
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{
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return Invalid;
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}
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if(validator && validator->validate(s, i) == Intermediate)
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{
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if(s.length() > fieldLength)
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return Invalid;
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return Intermediate;
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}
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if ( fieldType == QVariant::String )
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{
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if (s.length() > 1 )
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{
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if ( s == "NU" || s == "NUL" || s == "NULL" || s == "nu" || s == "nul" || s == "null")
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return Intermediate;
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}
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}
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if(s.length() > fieldLength)
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return Invalid;
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if(fieldType == QVariant::Double)
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{
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int len = s.length();
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int prec = s.indexOf(QChar('.'));
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QgsDebugMsg(tr("length %1 %2") . arg(len). arg(prec));
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if(s.indexOf(QChar('.')) != -1 && s.length() - (s.indexOf(QChar('.')) + 1) > fieldPrecision)
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return Invalid;
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}
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return Acceptable;
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}
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private:
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// Disables copy constructing
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Q_DISABLE_COPY( QgsFieldValidator )
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QValidator *validator;
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int fieldLength;
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QVariant::Type fieldType;
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int fieldPrecision;
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};
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#endif // QGSFIELDVALIDATOR_H
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