/**
* Set the object to be edited.
*
* @param value The object to be edited.
*/
public void setObject(Object value) {
if (!(_type.isInstance(value))) {
throw new IllegalArgumentException(value.getClass() + " is not of type " + _type);
}
_value = value;
// Disable event generation.
_squelchChangeEvents = true;
// Iterate over each property, doing a lookup on the associated editor
// and setting the editor's value to the value of the property.
Iterator it = _prop2Editor.keySet().iterator();
while (it.hasNext()) {
PropertyDescriptor desc = (PropertyDescriptor) it.next();
PropertyEditor editor = (PropertyEditor) _prop2Editor.get(desc);
Method reader = desc.getReadMethod();
if (reader != null) {
try {
Object val = reader.invoke(_value, null);
editor.setValue(val);
} catch (IllegalAccessException ex) {
ex.printStackTrace();
} catch (InvocationTargetException ex) {
ex.getTargetException().printStackTrace();
}
}
}
// Enable event generation.
_squelchChangeEvents = false;
}
/**
* Try to execute given method on given object. Handles invocation target exceptions. XXX nearly
* duplicates tryMethod in JGEngine.
*
* @return null means method does not exist or returned null/void
*/
static Object tryMethod(Object o, String name, Object[] args) {
try {
Method met = JREEngine.getMethod(o.getClass(), name, args);
if (met == null) return null;
return met.invoke(o, args);
} catch (InvocationTargetException ex) {
Throwable ex_t = ex.getTargetException();
ex_t.printStackTrace();
return null;
} catch (IllegalAccessException ex) {
System.err.println("Unexpected exception:");
ex.printStackTrace();
return null;
}
}
public void propertyChange(PropertyChangeEvent e) {
if (_squelchChangeEvents) return;
PropertyEditor editor = (PropertyEditor) e.getSource();
PropertyDescriptor prop = (PropertyDescriptor) _editor2Prop.get(editor);
Method writer = prop.getWriteMethod();
if (writer != null) {
try {
Object[] params = {editor.getValue()};
writer.invoke(_value, params);
setObject(_value);
firePropertyChange(_value, prop.getName(), null, editor.getValue());
} catch (IllegalAccessException ex) {
ex.printStackTrace();
} catch (InvocationTargetException ex) {
ex.getTargetException().printStackTrace();
}
}
}