1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 package integration.forms; 24 25 import com.sun.star.form.binding.*; 26 27 /** 28 * 29 * @author fs@openoffice.org 30 */ 31 public class NumericValidator extends integration.forms.ControlValidator 32 { 33 34 /** Creates a new instance of NumericValidator */ NumericValidator( )35 public NumericValidator( ) 36 { 37 } 38 explainInvalid( Object Value )39 public String explainInvalid( Object Value ) 40 { 41 try 42 { 43 double value = ((Double)Value).doubleValue(); 44 if ( Double.compare( Double.NaN, value ) == 0 ) 45 return "This is NotANumber"; 46 if ( !isProperRange( value ) ) 47 return "The value must be between 0 and 100"; 48 if ( !isProperDigitCount( value ) ) 49 return "The value must have at most one decimal digit"; 50 } 51 catch( java.lang.Exception e ) 52 { 53 return "This is no valid number"; 54 } 55 return ""; 56 } 57 isValid( Object Value )58 public boolean isValid( Object Value ) 59 { 60 try 61 { 62 double value = ((Double)Value).doubleValue(); 63 if ( Double.compare( Double.NaN, value ) == 0 ) 64 return false; 65 if ( !isProperRange( value ) ) 66 return false; 67 if ( !isProperDigitCount( value ) ) 68 return false; 69 return true; 70 } 71 catch( java.lang.Exception e ) 72 { 73 } 74 return false; 75 } 76 isProperRange( double value)77 private boolean isProperRange( double value) 78 { 79 return ( value >= 0 ) && ( value <= 100 ); 80 } 81 isProperDigitCount( double value)82 private boolean isProperDigitCount( double value) 83 { 84 return ( java.lang.Math.floor( value * 10 ) == value * 10 ); 85 } 86 } 87