void CopyFilterGUIChannelItem::mouseMoveEvent(QGraphicsSceneMouseEvent* event)
{
if (currentConnection == NULL)
{
if (!boundingRect().contains(event->pos()))
{
currentConnection = new CopyFilterGUIConnectionItem();
scene()->addItem(currentConnection);
}
}
if (currentConnection != NULL)
{
CopyFilterGUIChannelItem* item = findAt(event->scenePos());
if (item == NULL)
{
QLineF line;
if (output)
line = QLineF(event->scenePos(), getPerimeterPointTo(event->scenePos()));
else
line = QLineF(getPerimeterPointTo(event->scenePos()), event->scenePos());
currentConnection->setLine(line);
}
else
{
currentConnection->setLine(getLineTo(item));
}
}
}
BinaryNode<T>* BinarySearchTree<T>::findAt(BinaryNode<T> * node, const T& anItem) const
// Retrieves an item starting searching at node
{
if (node == NULL) { // Then the item was not found
return NULL;
}
else if (anItem == node->item) { // Then found
return node;
}
else if (anItem < node->item) { // Search in the left tree
return (findAt(node->leftChild, anItem));
}
else { // Search in the right tree
return (findAt(node->rightChild, anItem));
}
}
void CopyFilterGUIChannelItem::mouseReleaseEvent(QGraphicsSceneMouseEvent* event)
{
if (currentConnection != NULL)
{
CopyFilterGUIChannelItem* item = findAt(event->scenePos());
if (item != NULL)
{
CopyFilterGUIChannelItem* source;
CopyFilterGUIChannelItem* target;
if (output)
{
source = item;
target = this;
}
else
{
source = this;
target = item;
}
double factor = 1.0;
if (source->getName() == "")
factor = 0.0;
scene()->addItem(new CopyFilterGUIConnectionItem(source, target, factor, false));
emit((CopyFilterGUIScene*)scene())->updateModel();
emit((CopyFilterGUIScene*)scene())->updateChannels();
}
scene()->removeItem(currentConnection);
delete currentConnection;
currentConnection = NULL;
}
else
{
scene()->clearSelection();
QList<QGraphicsItem*> items = scene()->items();
for (QGraphicsItem* item : items)
{
CopyFilterGUIConnectionItem* connItem = qgraphicsitem_cast<CopyFilterGUIConnectionItem*>(item);
if (connItem != NULL)
{
if (connItem->getSource() == this || connItem->getTarget() == this)
connItem->setSelected(true);
}
}
}
}
void CFotoEntity::FindAt( int nX, int nY ){
m_nColor = getPixel(nX, nY);
findAt(nX, nY);
}
BinaryNode<T>* BinarySearchTree<T>::find(const T& anItem) const // Retrieves the node corresponding to the item. If not found, returns null
{
return (findAt(BinaryTree<T>::root, anItem));
}
