77 lines
2.4 KiB
Java
77 lines
2.4 KiB
Java
/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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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 ( Math.floor( value * 10 ) == value * 10 );
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}
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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