void CtrlTree::onUpdate( Subject<VarTree, tree_update> &rTree,
tree_update *arg )
{
(void)rTree;
if( arg->type == arg->ItemInserted )
{
if( isItemVisible( arg->it ) )
{
makeImage();
notifyLayout();
}
setSliderFromFirst();
}
else if( arg->type == arg->ItemUpdated )
{
if( arg->it->isPlaying() )
{
m_rTree.ensureExpanded( arg->it );
ensureVisible( arg->it );
makeImage();
notifyLayout();
setSliderFromFirst();
}
else if( isItemVisible( arg->it ) )
{
makeImage();
notifyLayout();
}
}
else if( arg->type == arg->DeletingItem )
{
if( isItemVisible( arg->it ) )
m_bRefreshOnDelete = true;
// remove all references to arg->it
// if it is the one about to be deleted
if( m_firstPos == arg->it )
{
m_firstPos = getNearestItem( arg->it );
}
if( m_lastClicked == arg->it )
{
m_lastClicked = getNearestItem( arg->it );
m_lastClicked->setSelected( arg->it->isSelected() );
}
}
else if( arg->type == arg->ItemDeleted )
{
if( m_bRefreshOnDelete )
{
m_bRefreshOnDelete = false;
makeImage();
notifyLayout();
}
setSliderFromFirst();
}
else if( arg->type == arg->ResetAll )
{
m_lastClicked = m_rTree.end();
m_firstPos = getFirstFromSlider();
makeImage();
notifyLayout();
setSliderFromFirst();
}
else if( arg->type == arg->SliderChanged )
{
Iterator it = getFirstFromSlider();
if( m_firstPos != it )
{
m_firstPos = it;
makeImage();
notifyLayout();
}
}
}
VecItem* KdTree::getNearestItem(VecItem* item){
return getNearestItem(item->getPosition());
}
