/** Check that given edge is in current sector */
bool NodeNav::isEdgeInSector( GEdge * edge) const
{
GNode *n = otherEnd( edge);
/* item corresponding to other (than node_priv) node */
if ( isNullP( n) || sector() == UNDEF_SECTOR)
return false;
NodeItem *item = n->item();
// Both points in current node's coordinates
QPointF p_center = node_priv->item()->boundingRect().center();
QPointF s_center = node_priv->item()->mapFromItem( item, item->boundingRect().center());
qreal angle = QLineF( p_center, s_center).angle();
qreal max_angle = sectorMaxAngle();
qreal min_angle = sectorMinAngle();
if ( angle > 270 && sector() == RIGHT_SECTOR)
{
max_angle +=360;
}
if ( angle < 90 && sector() == RIGHT_SECTOR)
{
min_angle -=360;
}
if ( angle <= max_angle && angle >= min_angle)
return true;
return false;
}
/**
* Change node's style
*/
void GGraph::setNodeStyle( GStyle *style)
{
if ( sel_nodes.isEmpty())
return;
GNode* node = sel_nodes.first();
node->setStyle( style);
node->item()->adjustAssociates();
}
/** Get edge to the left of given edge */
GEdge *
NodeNav::edgeInDir( GEdge * edge, NavDirection dir) const
{
/* Applicable only for top and bottom sectors */
if ( !isDirApplicable( dir, sector()))
{
return NULL;
}
GNode *n = otherEnd( edge);
/* item corresponding to other (than node_priv) node */
if ( isNullP( n))
return NULL;
NodeItem *item = n->item();
// in current node's coordinates
QPointF edge_point = node()->item()->mapFromItem( item, item->boundingRect().center());
GEdge *res = NULL;
qreal min_delta = 0;
/** For each edge */
for ( Node::EdgeIter e_iter = node()->edgesBegin(),
e_end = node()->edgesEnd();
e_iter != e_end;
e_iter++ )
{
GEdge *e = static_cast<GEdge *>( e_iter.edge());
if ( isEdgeInSector( e) && areNotEqP( e, edge))
{
NodeItem *p_item = static_cast<GNode *>( e_iter.node())->item();
QPointF point = node()->item()->mapFromItem( p_item, p_item->boundingRect().center());
if ( isPointInDir( point, edge_point, dir))
{
qreal delta = deltaInDir( point, edge_point, dir);
if ( isNullP( res)
|| delta < min_delta) // for selection of closest edge
{
res = e;
min_delta = delta;
}
}
}
}
return res;
}
void
TestParser::parseLine( QString line)
{
QString n_str("Node ");
QString e_str("Edge ");
/** Node recognition */
QRegExp node_rx("CF ?(Enter)? ?(\\w*) Node (\\d+)");
/** Edge recognition */
QRegExp edge_rx("CF EDGE (\\d+) \\[(\\d+)->(\\d+)\\]");
QTextStream stream( stdout);
/** Expression recognition */
int pos = 0;
if ( edge_rx.indexIn( line) != -1)
{
QString name = e_str.append( edge_rx.cap(1));
QString pred_name("Node ");
pred_name.append( edge_rx.cap( 2));
QString succ_name("Node ");
succ_name.append( edge_rx.cap( 3));
/** Back edge */
QRegExp back_rx("Back");
/** Add edge to symtab */
if ( symtab.find( name) == symtab.end()
&& symtab.find( pred_name) != symtab.end()
&& symtab.find( succ_name) != symtab.end())
{
SymEdge *edge = new SymEdge( name);
edge->setPred( pred_name);
edge->setSucc( succ_name);
symtab[ name] = edge;
/** Add edge to graph */
GNode* pred = static_cast< SymNode *>( symtab[ pred_name])->node();
GNode* succ = static_cast< SymNode *>( symtab[ succ_name])->node();
GEdge* e = graph->graph()->newEdge( pred, succ);
#ifdef _DEBUG
//stream << name << ": " << pred_name << "->" << succ_name << endl;
#endif
if ( back_rx.indexIn( line) != -1 && !e->isSelf())
{
GNode* label = e->insertLabelNode( QPointF( 0,0));
label->item()->setPlainText( "Back");
}
}
} else if ( node_rx.indexIn( line) != -1 )
{
bool good_id = false;
int ir_id = node_rx.cap(3).toInt( &good_id);
QString text = QString("Node ").append( node_rx.cap(3));
QString name = n_str.append( node_rx.cap(3));
if ( !node_rx.cap( 1).isEmpty())
{
text.append("\n").append( node_rx.cap(1));
}
if ( !node_rx.cap( 2).isEmpty())
{
text.append("\n").append( node_rx.cap(2));
}
/** Add node to symtab */
if ( symtab.find( name ) == symtab.end())
{
SymNode* node = new SymNode( name);
curr_node = static_cast<CFNode *>( graph->graph()->newNode());
curr_node->setDoc( new QTextDocument());
node->setNode( curr_node);
node->node()->item()->setPlainText( text);
if ( good_id)
{
node->node()->setIRId( ir_id);
}
symtab[ name] = node;
#ifdef _DEBUG
//stream << name << endl;
#endif
}
} else
{
if ( !isStateNode())
setStateDefault();
}
if ( isStateNode())
{
node_text.append( line).append( "\n");
}
}
void
EdgeItem::keyPressEvent(QKeyEvent *event)
{
int key = event->key();
GNode *n = NULL;
GEdge *e = NULL;
VEdge vedge( edge());
NavSector sector = edge()->graph()->nodeNavigationSector();
GNode *curr_node = edge()->graph()->nodeInFocus();
NodeNav node_nav( curr_node, sector);
switch( key)
{
case Qt::Key_Up:
if ( isNotNullP( curr_node)
&& ( sector == LEFT_SECTOR || sector == RIGHT_SECTOR))
{
e = node_nav.edgeInDir( edge(), NAV_DIR_UP);
} else
{
n = vedge.nodeUp();
}
break;
case Qt::Key_Down:
if ( isNotNullP( curr_node)
&& ( sector == LEFT_SECTOR || sector == RIGHT_SECTOR) )
{
e = node_nav.edgeInDir( edge(), NAV_DIR_DOWN);
} else
{
n = vedge.nodeDown();
}
break;
case Qt::Key_Left:
if ( isNotNullP( curr_node)
&& ( sector == TOP_SECTOR || sector == BOTTOM_SECTOR) )
{
e = node_nav.edgeInDir( edge(), NAV_DIR_LEFT);
} else
{
n = vedge.nodeLeft();
}
break;
case Qt::Key_Right:
if ( isNotNullP( curr_node)
&& ( sector == TOP_SECTOR || sector == BOTTOM_SECTOR) )
{
e = node_nav.edgeInDir( edge(), NAV_DIR_RIGHT);
} else
{
n = vedge.nodeRight();
}
break;
default:
break;
}
if ( isNotNullP( n))
{
if ( edge()->graph()->view()->isContext())
{
edge()->graph()->emptySelection();
edge()->graph()->selectNode( n);
edge()->graph()->view()->findContext();
}
edge()->graph()->view()->focusOnNode( n, true);
scene()->clearFocus();
scene()->clearSelection();
n->item()->setFocus();
n->item()->setSelected( true);
} else if ( isNotNullP( e))
{
// Get focus on edge
scene()->clearFocus();
scene()->clearSelection();
e->item()->setFocus();
e->item()->setSelected( true);
}
//QGraphicsItem::keyPressEvent( event);
}