Пример #1
0
/**
 * Destructor for node - removes edge controls on incidient edges and disconnects item from scene
 */
GNode::~GNode()
{
    graph()->invalidateRanking();
    if ( ( isEdgeControl() || isEdgeLabel())
         && isNotNullP( firstPred()) 
         && isNotNullP( firstSucc())
         && isNotNullP( firstPred()->pred())
         && isNotNullP( firstSucc()->succ()))
    {
        GRAPH_ASSERTD( areEqP( firstPred()->style(), firstSucc()->style()),
                       "Different styles on the same edge");
        GEdge *e = graph()->newEdge( firstPred()->pred(), firstSucc()->succ());
        e->setStyle( firstPred()->style());
    } else if ( isSimple())
    {
        QList< GNode *> nodes;
        GEdge* edge;
		Marker m = graph()->newMarker();
        for ( edge = firstSucc(); isNotNullP( edge); edge = edge->nextSucc())
        {
            edge->item()->adjust();
            GNode* succ = edge->succ();

            while ( succ->isEdgeControl() || succ->isEdgeLabel())
            {
                assert( isNotNullP( succ->firstSucc()));
                if ( succ->mark( m))
				{
					nodes << succ;
				}
                succ = succ->firstSucc()->succ();
            }
        }
        for ( edge = firstPred(); isNotNullP( edge); edge = edge->nextPred())
        {
            if ( edge->isSelf()) // We've already processed this one in previous loop
				continue;

			edge->item()->adjust();
            GNode* pred = edge->pred();

            while ( pred->isEdgeControl() || pred->isEdgeLabel())
            {
                assert( isNotNullP( pred->firstPred()));
                if ( pred->mark( m))
				{
					nodes << pred;
				}
                pred = pred->firstPred()->pred();
            }
        }
        
        foreach ( GNode *n, nodes)
        {
            graph()->deleteNode( n);
        }
		graph()->freeMarker( m);
    }
Пример #2
0
/**
 * Change edge's style
 */
void GGraph::setEdgeStyle( GStyle *style)
{
    if ( sel_edges.isEmpty())
        return;

    GEdge* edge = sel_edges.first();
    edge->setStyle( style);
    edge->item()->adjust();
}