///////////////////////////////////////////////////////////////////////////////
// Callback for when the user selects an item in the tree. The selection might
// be vetoed if the item is not selectable.
//
void SceneOutliner::OnSelectionChanging( wxTreeEvent& args )
{
EDITOR_SCOPE_TIMER( ("") );
if ( !m_IgnoreSelectionChange )
{
const wxTreeItemId& item = args.GetItem();
// Any item can be deselected, so only check the case where an item is
// about to be selected.
if ( !m_TreeCtrl->IsSelected( item ) )
{
SceneOutlinerItemData* data = GetTreeItemData( item );
SceneNode* node = Reflect::SafeCast<SceneNode>( data->GetObject() );
if ( node )
{
if ( !node->IsSelectable() )
{
args.Veto();
}
}
}
}
}
UndoCommandPtr Selection::SetItems(const OS_ObjectDumbPtr& items, const SelectionChangingSignature::Delegate& emitterChanging, const SelectionChangedSignature::Delegate& emitterChanged)
{
if (items.Empty())
{
return Clear(emitterChanging, emitterChanged);
}
EDITOR_SCENE_SCOPE_TIMER( ("") );
SimpleTimer timer;
OS_ObjectDumbPtr selectableItems;
{
OS_ObjectDumbPtr::Iterator itr = items.Begin();
OS_ObjectDumbPtr::Iterator end = items.End();
for ( ; itr != end; ++itr )
{
SceneNode *pSceneNode = Reflect::SafeCast<SceneNode>(*itr);
if (!pSceneNode || pSceneNode->IsSelectable())
{
selectableItems.Append(*itr);
}
}
}
UndoCommandPtr command;
SelectionChangingArgs args ( items );
m_SelectionChanging.RaiseWithEmitter( args , emitterChanging);
if ( !args.m_Veto )
{
command = new SelectionChangeCommand( this );
{
OS_ObjectDumbPtr::Iterator itr = m_Items.Begin();
OS_ObjectDumbPtr::Iterator end = m_Items.End();
for ( ; itr != end; ++itr )
{
SceneNode *pSceneNode = Reflect::SafeCast<SceneNode>(*itr);
if (pSceneNode)
{
pSceneNode->SetSelected(false);
}
}
}
m_Items = selectableItems;
{
OS_ObjectDumbPtr::Iterator itr = m_Items.Begin();
OS_ObjectDumbPtr::Iterator end = m_Items.End();
for ( ; itr != end; ++itr )
{
SceneNode *pSceneNode = Reflect::SafeCast<SceneNode>(*itr);
if (pSceneNode)
{
pSceneNode->SetSelected(true);
}
}
}
m_SelectionChanged.RaiseWithEmitter(m_Items, emitterChanged);
}
Log::Profile( TXT( "Selection SetItems took %fms\n" ), timer.Elapsed());
return command;
}
