void BackdropNodeGadget::frame( const std::vector<Gaffer::Node *> &nodes )
{
GraphGadget *graph = ancestor<GraphGadget>();
if( !graph )
{
return;
}
Box3f b;
for( std::vector<Node *>::const_iterator it = nodes.begin(), eIt = nodes.end(); it != eIt; ++it )
{
NodeGadget *nodeGadget = graph->nodeGadget( *it );
if( nodeGadget )
{
b.extendBy( nodeGadget->transformedBound( NULL ) );
}
}
if( b.isEmpty() )
{
return;
}
graph->setNodePosition( node(), V2f( b.center().x, b.center().y ) );
V2f s( b.size().x / 2.0f, b.size().y / 2.0f );
boundPlug()->setValue(
Box2f(
V2f( -s ) - V2f( g_margin ),
V2f( s ) + V2f( g_margin + 2.0f * g_margin )
)
);
}
void GraphGadget::updateDragSelection( bool dragEnd )
{
Box2f selectionBound;
selectionBound.extendBy( m_dragStartPosition );
selectionBound.extendBy( m_lastDragPosition );
for( NodeGadgetMap::const_iterator it = m_nodeGadgets.begin(), eIt = m_nodeGadgets.end(); it != eIt; ++it )
{
NodeGadget *nodeGadget = it->second.gadget;
const Box3f nodeBound3 = nodeGadget->transformedBound();
const Box2f nodeBound2( V2f( nodeBound3.min.x, nodeBound3.min.y ), V2f( nodeBound3.max.x, nodeBound3.max.y ) );
if( boxContains( selectionBound, nodeBound2 ) )
{
nodeGadget->setHighlighted( true );
if( dragEnd )
{
m_scriptNode->selection()->add( const_cast<Gaffer::Node *>( it->first ) );
}
}
else
{
nodeGadget->setHighlighted( m_scriptNode->selection()->contains( it->first ) );
}
}
}