public FormIndex decrementIndex(FormIndex index)
{
ArrayList indexes = new ArrayList();
ArrayList multiplicities = new ArrayList();
ArrayList elements = new ArrayList();
if (index.isBeginningOfFormIndex())
{
return(index);
}
else if (index.isEndOfFormIndex())
{
if (form.Children == null || form.Children.Count == 0)
{
return(FormIndex.createBeginningOfFormIndex());
}
}
else
{
form.collapseIndex(index, indexes, multiplicities, elements);
}
decrementHelper(indexes, multiplicities, elements);
if (indexes.Count == 0)
{
return(FormIndex.createBeginningOfFormIndex());
}
else
{
return(form.buildIndex(indexes, multiplicities, elements));
}
}
/**
* Given a FormIndex, returns the event this FormIndex represents.
*
* @see FormEntryController
*/
public int getEvent(FormIndex index)
{
if (index.isBeginningOfFormIndex())
{
return(FormEntryController.EVENT_BEGINNING_OF_FORM);
}
else if (index.isEndOfFormIndex())
{
return(FormEntryController.EVENT_END_OF_FORM);
}
// This came from chatterbox, and is unclear how correct it is,
// commented out for now.
// DELETEME: If things work fine
// Vector defs = form.explodeIndex(index);
// IFormElement last = (defs.size() == 0 ? null : (IFormElement)
// defs.lastElement());
IFormElement element = form.getChild(index);
if (element is GroupDef)
{
if (((GroupDef)element).Repeat)
{
if (repeatStructure != REPEAT_STRUCTURE_NON_LINEAR && form.Instance.resolveReference(form.getChildInstanceRef(index)) == null)
{
return(FormEntryController.EVENT_PROMPT_NEW_REPEAT);
}
else if (repeatStructure == REPEAT_STRUCTURE_NON_LINEAR && index.getElementMultiplicity() == TreeReference.INDEX_REPEAT_JUNCTURE)
{
return(FormEntryController.EVENT_REPEAT_JUNCTURE);
}
else
{
return(FormEntryController.EVENT_REPEAT);
}
}
else
{
return(FormEntryController.EVENT_GROUP);
}
}
else
{
return(FormEntryController.EVENT_QUESTION);
}
}
/**
* @param index
* @return true if the element at the specified index is read only
*/
public Boolean isIndexReadonly(FormIndex index)
{
if (index.isBeginningOfFormIndex() || index.isEndOfFormIndex())
{
return(true);
}
TreeReference ref_ = form.getChildInstanceRef(index);
Boolean isAskNewRepeat = (getEvent(index) == FormEntryController.EVENT_PROMPT_NEW_REPEAT ||
getEvent(index) == FormEntryController.EVENT_REPEAT_JUNCTURE);
if (isAskNewRepeat)
{
return(false);
}
else
{
TreeElement node = form.Instance.resolveReference(ref_);
return(!node.isEnabled());
}
}