eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/ui/element/FloatWithLabelElement.java

   1 /**
   2 * Copyright (C) 2020 EDIT
   3 * European Distributed Institute of Taxonomy
   4 * http://www.e-taxonomy.eu
   5 *
   6 * The contents of this file are subject to the Mozilla Public License Version 1.1
   7 * See LICENSE.TXT at the top of this package for the full license terms.
   8 */
   9 package eu.etaxonomy.taxeditor.ui.element;
  10
  11 import org.apache.commons.lang3.StringUtils;
  12 import org.eclipse.swt.SWT;
  13 import org.eclipse.swt.events.ModifyEvent;
  14 import org.eclipse.swt.widgets.Display;
  15
  16 /**
  17  * @author k.luther
  18  * @since May 27, 2020
  19  */
  20 public class FloatWithLabelElement extends NumberWithLabelElement {
  21
  22     private Float start;
  23     private Float end;
  24
  25     public FloatWithLabelElement(CdmFormFactory toolkit, ICdmFormElement parentElement, String labelString,
  26             Number initialNumber, int style) {
  27         super(toolkit, parentElement, labelString, initialNumber, style);
  28     }
  29
  30     @Override
  31     public void modifyText(ModifyEvent event) {
  32         String value = text.getText();
  33         if(StringUtils.isBlank(value)){
  34             text.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_WHITE));
  35             super.modifyText(event);
  36             return;
  37         }
  38
  39         try{
  40             Float number = Float.parseFloat(value);
  41             if((start != null && number < start) || (end != null && number > end)){
  42                 exception = new NumberFormatException("You entered a number that is not within the allowed bounds.");
  43                 throw exception;
  44             }
  45         }catch(NumberFormatException e){
  46             text.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_RED));
  47             firePropertyChangeEvent(new CdmPropertyChangeEvent(this, event));
  48             exception = e;
  49             return;
  50         }
  51
  52         exception = null;
  53         text.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_WHITE));
  54
  55         super.modifyText(event);
  56     }
  57
  58     /**
  59      * <p>setLimits</p>
  60      *
  61      * @param numberOfDigits a int.
  62      * @param start a {@link java.lang.Float} object.
  63      * @param end a {@link java.lang.Float} object.
  64      */
  65     public void setLimits(int numberOfDigits, Float start, Float end){
  66         text.setTextLimit(numberOfDigits);
  67         this.start = start;
  68         this.end = end;
  69     }
  70
  71     public void setLimits(int numberOfDigits, Integer start, Integer end){
  72         setLimits(numberOfDigits, start.floatValue(), end.floatValue());
  73     }
  74 }