void GraphGraphicsView::depthFirstSearch()
{
clearArrows();
clearWeights();
drawAllEdges();
drawWeights();
bool hasCircle = false;
int depthNo = 1;
int endNo = 1;
QList<int> prev;
for (int u = 0; u < nodes.length(); ++u) {
nodes[u]->setDepthNo(0);
nodes[u]->setEndNo(0);
prev.push_back(-1);
}
for (int u = 0; u < nodes.length(); ++u) {
if (nodes[u]->getDepthNo() == 0) {
DFS(u,depthNo, endNo, prev, hasCircle);
}
}
if (hasCircle) {
QMessageBox::warning(0, "Warning","This graph has a circle.");
}
else
{
QMessageBox::information(0, "Done", "Sum of all weights: ");
}
scene.update();
}
void GraphGraphicsView::reposition()
{
if (nodes.length() == 0)
return;
qsrand(QTime::currentTime().msec());
for (int i = 0; i < lines.length(); ++i) {
scene.removeItem(lines[i]);
}
lines.clear();
for (int i = 0; i < arrows.length(); ++i) {
scene.removeItem(arrows[i]);
}
arrows.clear();
for (int i = 0; i < weights.size(); ++i) {
scene.removeItem(weights[i]);
}
weights.clear();
for (int i = 0; i < nodes.length(); ++i)
{
NodeGraphicsItem* item = nodes[i];
qreal powX;
qreal powY = qPow(-1,i);
if (qrand() % 2)
powX = -1;
else
powX = 1;
item->setPos(powX * (qrand() % 450), powY * (qrand() % 220));
bool tooClose = false;
for (int j = 0; j < nodes.length(); ++j)
{
if (i != j)
{
tooClose = tooClose || itemLevelTooClose(nodes[j], item);
//qDebug() << "tooClose " << tooClose;
}
}
while(tooClose)
{
tooClose = false;
//qDebug() << "too close";
item->setPos(powX * (qrand() % 450), powY * (qrand() % 220));
for (int j = 0; j < nodes.length(); ++j) {
if (i != j)
{
tooClose = tooClose || itemLevelTooClose(nodes[j], item);
}
}
}
}
drawAllEdges();
drawWeights();
}
void FramesWeightFrame::paintEvent(QPaintEvent *)
{
QSize newSize(frames_count*FrameBarWidth, TrackHeight);
if(newSize != size())
resize(newSize);
drawWeights();
QPainter p(this);
p.drawPixmap(0, 0, *offscreen);
}
void BCIViz::draw( M3dView & view, const MDagPath & path,
M3dView::DisplayStyle style,
M3dView::DisplayStatus status )
{
MObject thisNode = thisMObject();
view.beginGL();
glPushAttrib (GL_CURRENT_BIT);
glDisable(GL_DEPTH_TEST);
drawDriver();
drawTargets();
drawNeighbours();
drawWeights();
glEnable(GL_DEPTH_TEST);
glPopAttrib();
view.endGL();
}
