org.apache.cayenne.swing.ItemEventBinding Maven / Gradle / Ivy
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package org.apache.cayenne.swing;
import java.awt.Component;
import javax.swing.AbstractButton;
/**
* Binds a checkbox state to an int or boolean property.
*
*/
public class ItemEventBinding extends BindingBase {
protected AbstractButton boundItem;
public ItemEventBinding(AbstractButton boundItem, String expression) {
super(expression);
this.boundItem = boundItem;
boundItem.addItemListener(e -> updateModel());
}
public Component getView() {
return boundItem;
}
public void updateView() {
Object value = getValue();
boolean b = false;
// convert to boolean
if (value != null) {
if (value instanceof Boolean) {
b = (Boolean) value;
} else if (value instanceof Number) {
b = ((Number) value).intValue() != 0;
}
}
modelUpdateDisabled = true;
try {
boundItem.setSelected(b);
} finally {
modelUpdateDisabled = false;
}
}
protected void updateModel() {
setValue(boundItem.isSelected() ? Boolean.TRUE : Boolean.FALSE);
}
}