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/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
public class NumericValidator extends ControlValidator
{
/** Creates a new instance of NumericValidator */
public NumericValidator( )
{
}
public String explainInvalid( Object Value )
{
try
{
double value = ((Double)Value).doubleValue();
if ( Double.compare( Double.NaN, value ) == 0 )
return "This is NotANumber";
if ( !isProperRange( value ) )
return "The value must be between 0 and 100";
if ( !isProperDigitCount( value ) )
return "The value must have at most one decimal digit";
}
catch( java.lang.Exception e )
{
return "This is no valid number";
}
return "";
}
public boolean isValid( Object Value )
{
try
{
double value = ((Double)Value).doubleValue();
if ( Double.compare( Double.NaN, value ) == 0 )
return false;
if ( !isProperRange( value ) )
return false;
if ( !isProperDigitCount( value ) )
return false;
return true;
}
catch( java.lang.Exception e )
{
}
return false;
}
private boolean isProperRange( double value)
{
return ( value >= 0 ) && ( value <= 100 );
}
private boolean isProperDigitCount( double value)
{
return ( Math.floor( value * 10 ) == value * 10 );
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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