/**
* Gives notification that something was inserted into the document in a location that this view
* is responsible for. This is implemented to simply update the children.
*
* @param changes The change information from the associated document.
* @param a the current allocation of the view
* @param f the factory to use to rebuild if the view has children
* @see View#insertUpdate
*/
public void insertUpdate(DocumentEvent changes, Shape a, ViewFactory f) {
updateChildren(changes, a);
Rectangle alloc = ((a != null) && isAllocationValid()) ? getInsideAllocation(a) : null;
int pos = changes.getOffset();
View v = getViewAtPosition(pos, alloc);
if (v != null) v.insertUpdate(changes, alloc, f);
}
/**
* Forwards the <code>DocumentEvent</code> to the give child view. This simply messages the view
* with a call to <code>insertUpdate</code>, <code>removeUpdate</code>, or <code>changedUpdate
* </code> depending upon the type of the event. This is called by <a
* href="#forwardUpdate">forwardUpdate</a> to forward the event to children that need it.
*
* @param v the child view to forward the event to
* @param e the change information from the associated document
* @param a the current allocation of the view
* @param f the factory to use to rebuild if the view has children
* @see #forwardUpdate
* @since 1.3
*/
protected void forwardUpdateToView(View v, DocumentEvent e, Shape a, ViewFactory f) {
DocumentEvent.EventType type = e.getType();
if (type == DocumentEvent.EventType.INSERT) {
v.insertUpdate(e, a, f);
} else if (type == DocumentEvent.EventType.REMOVE) {
v.removeUpdate(e, a, f);
} else {
v.changedUpdate(e, a, f);
}
}
