void PSV_TreeItem::paintLine(const QLineF &parentVLine, PSV_TreeItemData *itemData)
{
if(itemData == NULL)
{
return;
}
QPointF point2 = parentVLine.p2();
QList<PSV_TreeItemData*> children = itemData->children();
int leafCount = itemData->leafCount();
int count = children.count();
QPen pen;
pen.setColor(QColor(Qt::red));
QPen pen_vLine;
pen_vLine.setColor(QColor(Qt::blue));
QPen pen_hLine;
QString tempText = itemData->text().trimmed();
QString text;
for(int i = 0; i < tempText.length(); ++i)
{
text.append(tempText.at(i));
if(i != tempText.length() - 1)
{
text.append("\n");
}
}
QGraphicsItem* nodeItem = new QGraphicsEllipseItem(QRectF(0,0,1,1),this);
nodeItem->setToolTip(tempText);
QSizeF size = nodeItem->boundingRect().size();
nodeItem->setPos(point2.x() - size.width() * 0.5,point2.y() - size.height() * 0.5);
QRectF rect = QRectF(nodeItem->pos().x(),nodeItem->pos().y(),size.width(),size.height());
// QGraphicsRectItem* rectItem = new QGraphicsRectItem(rect,this);
// rectItem->setPen(pen);
if(parentVLine.length() > PSV_ZEOR)
{
QLineF line = parentVLine;
line.setP2(QPointF(line.x2(),rect.top()));
QGraphicsLineItem* item = new QGraphicsLineItem(line,this);
PSV_NOUSED(item);
}
if(count > 0)
{
QLineF leftHLine(point2.x() - leafCount * 0.5 * m_dw
,point2.y()
,rect.left()
,point2.y());
QLineF rightHLine(rect.right()
,point2.y()
,point2.x() + leafCount * 0.5 * m_dw
,point2.y());
double curX1 = leftHLine.x1();
for(int i = 0; i < count; ++i)
{
PSV_TreeItemData* tempItemData = children.at(i);
int tempLeafCount = tempItemData->leafCount();
curX1 += tempLeafCount * 0.5 * m_dw;
if(i == 0)
{
leftHLine.setP1(QPointF(curX1,leftHLine.y1()));
}
if(i == count - 1)
{
rightHLine.setP2(QPointF(curX1,leftHLine.y2()));
}
double y1 = point2.y();
double y2 = point2.y() + tempItemData->distance() * m_dhRatio;
if(curX1 > rect.left() && curX1 < rect.right())
{
y1 = rect.bottom();
}
QLineF lineV(curX1,y1,curX1,y2);
curX1 += tempLeafCount * 0.5 * m_dw;
paintLine(lineV,tempItemData);
}
if(count > 1)
{
QGraphicsLineItem* leftHLineItem = new QGraphicsLineItem(leftHLine,this);
leftHLineItem->setPen(pen_hLine);
QGraphicsLineItem* rightHLineItem = new QGraphicsLineItem(rightHLine,this);
rightHLineItem->setPen(pen_hLine);
}
}
}
