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// $Id$
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/**
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* Copyright (C) 2007 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.taxeditor.ui.element;
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import org.apache.commons.lang.StringUtils;
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import org.eclipse.swt.SWT;
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import org.eclipse.swt.events.ModifyEvent;
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import org.eclipse.swt.widgets.Display;
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/**
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* <p>NumberWithLabelElement class.</p>
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*
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* @author n.hoffmann
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* @created Mar 22, 2010
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* @version 1.0
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*/
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public class NumberWithLabelElement extends TextWithLabelElement {
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private Float start;
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private Float end;
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private NumberFormatException exception;
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/**
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* <p>Constructor for NumberWithLabelElement.</p>
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*
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* @param toolkit a {@link eu.etaxonomy.taxeditor.ui.element.CdmFormFactory} object.
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* @param parentElement a {@link eu.etaxonomy.taxeditor.ui.element.ICdmFormElement} object.
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* @param labelString a {@link java.lang.String} object.
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* @param initialNumber a {@link java.lang.Number} object.
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* @param style a int.
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*/
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public NumberWithLabelElement(CdmFormFactory toolkit,
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ICdmFormElement parentElement, String labelString,
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Number initialNumber, int style) {
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super(toolkit, parentElement, labelString, null, null, style);
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setNumber(initialNumber);
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}
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/**
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* <p>setNumber</p>
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*
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* @param number a {@link java.lang.Number} object.
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*/
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public void setNumber(Number number) {
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super.setText(getStringRepresentation(number));
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}
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/**
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* <p>getInteger</p>
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*
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* @return a {@link java.lang.Integer} object.
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*/
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public Integer getInteger() {
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String text = super.getText().trim();
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return text.equals("") ? 0 : new Integer(text);
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}
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/**
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* <p>getFloat</p>
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*
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* @return a {@link java.lang.Float} object.
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*/
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public Float getFloat(){
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String text = super.getText();
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return new Float(text);
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}
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/**
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* <p>getDouble</p>
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*
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* @return a {@link java.lang.Float} object.
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*/
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public Double getDouble(){
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String text = super.getText();
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return new Double(text);
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}
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private String getStringRepresentation(Object number){
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if(number != null){
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return number.toString();
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}
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return null;
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.taxeditor.forms.AbstractCdmFormElement#propertyChange(org.eclipse.jface.util.PropertyChangeEvent)
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*/
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/** {@inheritDoc} */
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@Override
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public void modifyText(ModifyEvent event) {
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String value = text.getText();
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if(StringUtils.isBlank(value)){
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text.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_WHITE));
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return;
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}
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try{
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Float number = Float.parseFloat(value);
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if((start != null && number < start) || (end != null && number > end)){
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throw new NumberFormatException("You entered a number that is not within the allowed bounds.");
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}
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}catch(NumberFormatException e){
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text.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_RED));
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firePropertyChangeEvent(new CdmPropertyChangeEvent(this, e));
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exception = e;
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return;
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}
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exception = null;
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text.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_WHITE));
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super.modifyText(event);
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}
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/**
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* <p>setLimits</p>
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*
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* @param numberOfDigits a int.
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* @param start a {@link java.lang.Integer} object.
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* @param end a {@link java.lang.Integer} object.
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*/
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public void setLimits(int numberOfDigits, Integer start, Integer end){
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setLimits(numberOfDigits, start.floatValue(), end.floatValue());
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}
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/**
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* <p>setLimits</p>
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*
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* @param numberOfDigits a int.
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* @param start a {@link java.lang.Float} object.
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* @param end a {@link java.lang.Float} object.
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*/
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public void setLimits(int numberOfDigits, Float start, Float end){
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text.setTextLimit(numberOfDigits);
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this.start = start;
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this.end = end;
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}
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/**
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* <p>Getter for the field <code>exception</code>.</p>
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*
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* @return the exception
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*/
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public NumberFormatException getException() {
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return exception;
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}
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}
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