public UMLMultiplicityComboBox(UMLUserInterfaceContainer container, Class elementClass) {
super();
setModel(new DefaultComboBoxModel(_mults));
_container = container;
addItemListener(this);
Class[] getArgs = {};
Class[] setArgs = {MMultiplicity.class};
try {
_getMethod = elementClass.getMethod("getMultiplicity", getArgs);
_setMethod = elementClass.getMethod("setMultiplicity", setArgs);
} catch (Exception e) {
setEnabled(false);
System.out.println(e.toString() + " in UMLMultiplicityComboBox()");
}
}
public void itemStateChanged(ItemEvent event) {
if (event.getStateChange() == ItemEvent.SELECTED) {
int index = getSelectedIndex();
int lower = _lower[index];
int upper = _upper[index];
MMultiplicity mult = null;
if (lower >= 0) {
mult = new MMultiplicity(lower, upper);
}
try {
_setMethod.invoke(_container.getTarget(), new Object[] {mult});
} catch (Exception e) {
System.out.println(e.toString() + " in UMLMultiplicityComboBox.itemStateChanged()");
}
}
}
private void update() {
int lower = -1;
int upper = -1;
try {
Object obj = _getMethod.invoke(_container.getTarget(), _noArg);
if (obj instanceof MMultiplicity) {
MMultiplicity mult = (MMultiplicity) obj;
lower = mult.getLower();
upper = mult.getUpper();
}
} catch (Exception e) {
System.out.println(e.toString() + " in UMLMultiplicityComboBox.update()");
}
boolean match = false;
for (int i = 0; i < _mults.length; i++) {
if (lower == _lower[i] && upper == _upper[i]) {
setSelectedIndex(i);
match = true;
break;
}
}
if (!match) {
StringBuffer buf = new StringBuffer();
if (lower <= 0) {
buf.append("0..");
} else {
buf.append(Integer.toString(lower));
buf.append("..");
}
if (upper < 0) {
buf.append("*");
} else {
buf.append(Integer.toString(upper));
}
setSelectedItem(buf.toString());
}
}