void reorderChildren (const OwnedArray<ValueTree>& newOrder, UndoManager* undoManager)
{
jassert (newOrder.size() == children.size());
if (undoManager == nullptr)
{
children.clear();
children.ensureStorageAllocated (newOrder.size());
for (int i = 0; i < newOrder.size(); ++i)
children.add (newOrder.getUnchecked(i)->object);
sendChildOrderChangedMessage();
}
else
{
for (int i = 0; i < children.size(); ++i)
{
SharedObject* const child = newOrder.getUnchecked(i)->object;
if (children.getObjectPointerUnchecked (i) != child)
{
const int oldIndex = children.indexOf (child);
jassert (oldIndex >= 0);
moveChild (oldIndex, i, undoManager);
}
}
}
}
void moveChild (int currentIndex, int newIndex, UndoManager* undoManager)
{
// The source index must be a valid index!
jassert (isPositiveAndBelow (currentIndex, children.size()));
if (currentIndex != newIndex
&& isPositiveAndBelow (currentIndex, children.size()))
{
if (undoManager == nullptr)
{
children.move (currentIndex, newIndex);
sendChildOrderChangedMessage (currentIndex, newIndex);
}
else
{
if (! isPositiveAndBelow (newIndex, children.size()))
newIndex = children.size() - 1;
undoManager->perform (new MoveChildAction (this, currentIndex, newIndex));
}
}
}