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();
}
int GUIDisplayVisitor::draw(Component* component, int xIndex, int& yIndex)
{
int x = xIndex * (Component::MAX_WIDTH_PIXEL + Component::PADDING);
int y = yIndex * (Component::MAX_HEIGHT_PIXEL + Component::PADDING);
int middleY = y + component->getHeight() / 2;
list<Component*> children = component->getNodeList();
list<int> childrenMiddleY;
// traversal
if (!component->isCollapse()) {
for (list<Component*>::iterator iterator = children.begin(); iterator != children.end(); iterator++) {
Component* child = *iterator;
int childMiddleY = draw(child, xIndex + 1, yIndex);
childrenMiddleY.push_back(childMiddleY);
}
}
// create self GraphicsItem
NodeGraphicsItem* nodeGraphicsItem = new NodeGraphicsItem(_mindMapPresentationModel, component);
if (children.size() == 0) {
yIndex++;
} else {
// calc average line
middleY = 0;
for (list<int>::iterator iterator = childrenMiddleY.begin(); iterator != childrenMiddleY.end(); iterator++) {
middleY += ((float) * iterator) / childrenMiddleY.size();
}
// create line between self and child
for (list<int>::iterator iterator = childrenMiddleY.begin(); iterator != childrenMiddleY.end(); iterator++) {
int rightX = x + nodeGraphicsItem->boundingRect().right();
int leftX = x + nodeGraphicsItem->boundingRect().left();
QGraphicsLineItem* line = new QGraphicsLineItem(rightX, middleY, leftX + Component::MAX_WIDTH_PIXEL + Component::PADDING, *iterator);
_graphicsScene->addItem(line);
}
}
nodeGraphicsItem->setPos(x, middleY - component->getHeight() / 2);
component->setX(0);
component->setY(0);
_nodeGraphicsItems.push_back(nodeGraphicsItem);
_graphicsScene->addItem(nodeGraphicsItem);
return middleY;
}