Revision 298 org.gvsig.tools/library/trunk/org.gvsig.tools/org.gvsig.tools.swing/org.gvsig.tools.swing.serv/org.gvsig.tools.swing.serv.field/src/main/java/org/gvsig/tools/swing/serv/field/component/spinner/NullableNumberSpinnerModel.java
| NullableNumberSpinnerModel.java | ||
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*/ |
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package org.gvsig.tools.swing.serv.field.component.spinner; |
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import java.text.Format; |
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import javax.swing.AbstractSpinnerModel; |
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import javax.swing.SpinnerModel; |
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import javax.swing.SpinnerNumberModel; |
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import javax.swing.event.ChangeListener; |
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import org.gvsig.tools.ToolsLocator; |
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import org.gvsig.tools.dataTypes.CoercionException; |
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public class NullableNumberSpinnerModel extends SpinnerNumberModel implements |
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SpinnerModel {
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/** |
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* |
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*/ |
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private static final long serialVersionUID = 1320385929219211201L; |
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private DynField field; |
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private Object number; |
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private boolean isFirstTime; |
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this.field = field; |
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this.isFirstTime = true; |
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super.setValue(0); |
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if (value != null) |
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if (value != null) {
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setValue(value); |
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} |
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} |
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/* |
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@Override |
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public Object getNextValue() {
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Number next = null; |
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if (isNull()){
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if (isNull()) {
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next = 0; |
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} else{
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} else {
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next = (Number) super.getNextValue(); |
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} |
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this.number = next; |
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return next; |
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} |
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protected boolean isNull() {
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Object value = getValue(); |
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return ((value == null) || (value.equals("")));
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} |
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/* |
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* (non-Javadoc) |
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* |
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*/ |
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@Override |
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public Object getPreviousValue() {
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if (isNull()) |
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if (isNull()) {
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return null; |
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} |
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if (this.number.equals(this.getMinimum())) {
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// we are at the minimum value and we want to change to |
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// "undetermined" |
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if (this.isFirstTime) {
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this.number = 0; |
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} |
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if (this.number == null){
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if (this.number == null) {
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return null; |
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} |
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try {
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return (Number) ToolsLocator.getDataTypesManager().coerce(
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return ToolsLocator.getDataTypesManager().coerce( |
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this.field.getType(), this.number); |
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} catch (LocatorException e) {
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// TODO Auto-generated catch block |
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return null; |
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} |
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protected boolean isNull() {
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Object value = getValue(); |
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return ((value == null) || (value.equals("")));
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} |
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/* |
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* (non-Javadoc) |
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* |
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public void setValue(Object value) {
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this.number = value; |
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this.isFirstTime = false; |
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if (!isNull()){
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if (!isNull()) {
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super.setValue(value); |
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} |
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this.fireStateChanged(); |
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