90 lines
2.7 KiB
Java
90 lines
2.7 KiB
Java
/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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import com.sun.star.form.binding.*;
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/**
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*
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* @author fs@openoffice.org
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*/
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public class NumericValidator extends ControlValidator
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{
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/** Creates a new instance of NumericValidator */
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public NumericValidator( )
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{
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}
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public String explainInvalid( Object Value )
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{
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try
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{
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double value = ((Double)Value).doubleValue();
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if ( Double.compare( Double.NaN, value ) == 0 )
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return "This is NotANumber";
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if ( !isProperRange( value ) )
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return "The value must be between 0 and 100";
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if ( !isProperDigitCount( value ) )
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return "The value must have at most one decimal digit";
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}
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catch( java.lang.Exception e )
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{
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return "This is no valid number";
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}
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return "";
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}
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public boolean isValid( Object Value )
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{
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try
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{
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double value = ((Double)Value).doubleValue();
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if ( Double.compare( Double.NaN, value ) == 0 )
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return false;
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if ( !isProperRange( value ) )
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return false;
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if ( !isProperDigitCount( value ) )
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return false;
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return true;
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}
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catch( java.lang.Exception e )
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{
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}
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return false;
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}
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private boolean isProperRange( double value)
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{
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return ( value >= 0 ) && ( value <= 100 );
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}
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private boolean isProperDigitCount( double value)
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{
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return ( java.lang.Math.floor( value * 10 ) == value * 10 );
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}
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}
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