9b94af1e370c2ab471e0d65567dd71e59df04c1f
[taxeditor.git] / eu.etaxonomy.taxeditor.store / src / main / java / eu / etaxonomy / taxeditor / ui / section / campanula / NumberFieldController.java
1 // $Id$
2 /**
3 * Copyright (C) 2013 EDIT
4 * European Distributed Institute of Taxonomy
5 * http://www.e-taxonomy.eu
6 *
7 * The contents of this file are subject to the Mozilla Public License Version 1.1
8 * See LICENSE.TXT at the top of this package for the full license terms.
9 */
10 package eu.etaxonomy.taxeditor.ui.section.campanula;
11
12 import org.eclipse.swt.SWT;
13 import org.eclipse.swt.events.ModifyEvent;
14 import org.eclipse.swt.widgets.Display;
15 import org.eclipse.swt.widgets.Text;
16
17 import eu.etaxonomy.cdm.common.CdmUtils;
18 import eu.etaxonomy.taxeditor.ui.element.CdmFormFactory;
19 import eu.etaxonomy.taxeditor.ui.element.CdmPropertyChangeEvent;
20 import eu.etaxonomy.taxeditor.ui.section.campanula.compatibility.ICdmFormElement;
21
22 /**
23 * @author pplitzner
24 * @date 12.08.2013
25 *
26 */
27 public class NumberFieldController extends TextFieldController {
28 private Float start;
29 private Float end;
30
31 private NumberFormatException exception;
32
33 /**
34 * <p>Constructor for NumberWithLabelElement.</p>
35 *
36 * @param toolkit a {@link eu.etaxonomy.taxeditor.ui.element.CdmFormFactory} object.
37 * @param parentElement a {@link eu.etaxonomy.taxeditor.ui.element.ICdmFormElement} object.
38 * @param labelString a {@link java.lang.String} object.
39 * @param initialInteger a {@link java.lang.Integer} object.
40 * @param style a int.
41 */
42 public NumberFieldController(Text controlledText, CdmFormFactory formFactory, ICdmFormElement parentElement, Integer initialInteger){
43 super(controlledText, formFactory, parentElement, null, null);
44 //WindowBuilder exception handling
45 if(initialInteger==null){
46 initialInteger = 0;
47 }
48 setInteger(initialInteger);
49 }
50
51 /**
52 * <p>Constructor for NumberWithLabelElement.</p>
53 *
54 * @param toolkit a {@link eu.etaxonomy.taxeditor.ui.element.CdmFormFactory} object.
55 * @param parentElement a {@link eu.etaxonomy.taxeditor.ui.element.ICdmFormElement} object.
56 * @param labelString a {@link java.lang.String} object.
57 * @param initialFloat a {@link java.lang.Float} object.
58 * @param style a int.
59 * @wbp.parser.constructor
60 */
61 public NumberFieldController(Text controlledText, CdmFormFactory formFactory,
62 ICdmFormElement parentElement, Float initialFloat) {
63 super(controlledText, formFactory, parentElement, null, null);
64 //WindowBuilder exception handling
65 if(initialFloat==null){
66 initialFloat = 0f;
67 }
68 setFloat(initialFloat);
69 }
70
71 /**
72 * <p>setInteger</p>
73 *
74 * @param number a {@link java.lang.Integer} object.
75 */
76 public void setInteger(Integer number) {
77 super.setText(getStringRepresentation(number));
78 }
79
80 /**
81 * <p>setFloat</p>
82 *
83 * @param number a {@link java.lang.Float} object.
84 */
85 public void setFloat(Float number) {
86 super.setText(getStringRepresentation(number));
87 }
88
89 /**
90 * <p>getInteger</p>
91 *
92 * @return a {@link java.lang.Integer} object.
93 */
94 public Integer getInteger() {
95 String text = super.getText().trim();
96 return text.equals("") ? 0 : new Integer(text);
97 }
98
99 /**
100 * <p>getFloat</p>
101 *
102 * @return a {@link java.lang.Float} object.
103 */
104 public Float getFloat(){
105 String text = super.getText();
106 return new Float(text);
107 }
108
109 private String getStringRepresentation(Object number){
110 if(number != null){
111 return number.toString();
112 }
113 return null;
114 }
115
116 /* (non-Javadoc)
117 * @see eu.etaxonomy.taxeditor.forms.AbstractCdmFormElement#propertyChange(org.eclipse.jface.util.PropertyChangeEvent)
118 */
119 /** {@inheritDoc} */
120 @Override
121 public void modifyText(ModifyEvent event) {
122 String value = text.getText();
123 if(CdmUtils.isEmpty(value)){
124 text.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_WHITE));
125 return;
126 }
127
128 try{
129
130 Float number = Float.parseFloat(value);
131
132 if((start != null && number < start) || (end != null && number > end)){
133 throw new NumberFormatException("You entered a number that is not within the allowed bounds.");
134 }
135
136 }catch(NumberFormatException e){
137 text.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_RED));
138 firePropertyChangeEvent(new CdmPropertyChangeEvent(this, e));
139 exception = e;
140 return;
141 }
142
143 exception = null;
144 text.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_WHITE));
145
146 super.modifyText(event);
147 }
148
149 /**
150 * <p>setLimits</p>
151 *
152 * @param numberOfDigits a int.
153 * @param start a {@link java.lang.Integer} object.
154 * @param end a {@link java.lang.Integer} object.
155 */
156 public void setLimits(int numberOfDigits, Integer start, Integer end){
157 setLimits(numberOfDigits, start.floatValue(), end.floatValue());
158 }
159
160 /**
161 * <p>setLimits</p>
162 *
163 * @param numberOfDigits a int.
164 * @param start a {@link java.lang.Float} object.
165 * @param end a {@link java.lang.Float} object.
166 */
167 public void setLimits(int numberOfDigits, Float start, Float end){
168 text.setTextLimit(numberOfDigits);
169 this.start = start;
170 this.end = end;
171 }
172
173 /**
174 * <p>Getter for the field <code>exception</code>.</p>
175 *
176 * @return the exception
177 */
178 public NumberFormatException getException() {
179 return exception;
180 }
181 }