NodeItem.cpp
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#include "NodeItem.h"
#include <QtWidgets>
void NodeItem::mousePressEvent(QGraphicsSceneMouseEvent * event)
{
}
void NodeItem::mouseMoveEvent(QGraphicsSceneMouseEvent * event)
{
}
void NodeItem::mouseReleaseEvent(QGraphicsSceneMouseEvent * event)
{
}
NodeItem::NodeItem(int x, int y)
{
this->x = x;
this->y = y;
this->color = QColor(0, 0, 0); //R, G, B
setZValue((x+y)%2);
setFlags(ItemIsSelectable | ItemIsMovable);
setAcceptHoverEvents(true);
}
QRectF NodeItem::boundingRect() const
{
return QRectF(0, 0, 110, 70);
}
QPainterPath NodeItem::shape() const
{
QPainterPath path;
path.addRect(14, 14, 82, 42);
return path;
}
void NodeItem::paint(QPainter * painter, const QStyleOptionGraphicsItem * option, QWidget * widget)
{
Q_UNUSED(widget);
QColor fillColor = (option->state & QStyle::State_Selected) ? color.dark(150) : color;
if (option->state & QStyle::State_MouseOver)
fillColor = fillColor.light(125);
const qreal& lod = option->levelOfDetailFromTransform(painter->worldTransform());
if (lod < 0.2) {
if (lod < 0.125) {
painter->fillRect(QRectF(0, 0, 110, 70), fillColor);
return;
}
QBrush b = painter->brush();
painter->setBrush(fillColor);
painter->drawRect(13, 13, 97, 57);
painter->setBrush(b);
return;
}
QPen oldPen = painter->pen();
QPen pen = oldPen;
int width = 0;
if (option->state & QStyle::State_Selected)
width += 2;
pen.setWidth(width);
QBrush b = painter->brush();
painter->setBrush(QBrush(fillColor.dark(option->state & QStyle::State_Sunken ? 120 : 100)));
painter->drawRect(QRect(14, 14, 79, 39));
painter->setBrush(b);
if (lod >= 1) {
painter->setPen(QPen(Qt::gray, 1));
painter->drawLine(15, 54, 94, 54);
painter->drawLine(94, 53, 94, 15);
painter->setPen(QPen(Qt::black, 0));
}
// Draw text
//if (lod >= 2) {
// QFont font("Times", 10);
// font.setStyleStrategy(QFont::ForceOutline);
// painter->setFont(font);
// painter->save();
// painter->scale(0.1, 0.1);
// painter->drawText(170, 180, QString("Model: VSC-2000 (Very Small Chip) at %1x%2").arg(x).arg(y));
// painter->drawText(170, 200, QString("Serial number: DLWR-WEER-123L-ZZ33-SDSJ"));
// painter->drawText(170, 220, QString("Manufacturer: Chip Manufacturer"));
// painter->restore();
//}
// Draw lines
//QVarLengthArray<QLineF, 36> lines;
//if (lod >= 0.5) {
// for (int i = 0; i <= 10; i += (lod > 0.5 ? 1 : 2)) {
// lines.append(QLineF(18 + 7 * i, 13, 18 + 7 * i, 5));
// lines.append(QLineF(18 + 7 * i, 54, 18 + 7 * i, 62));
// }
// for (int i = 0; i <= 6; i += (lod > 0.5 ? 1 : 2)) {
// lines.append(QLineF(5, 18 + i * 5, 13, 18 + i * 5));
// lines.append(QLineF(94, 18 + i * 5, 102, 18 + i * 5));
// }
//}
//if (lod >= 0.4) {
// const QLineF lineData[] = {
// QLineF(25, 35, 35, 35),
// QLineF(35, 30, 35, 40),
// QLineF(35, 30, 45, 35),
// QLineF(35, 40, 45, 35),
// QLineF(45, 30, 45, 40),
// QLineF(45, 35, 55, 35)
// };
// lines.append(lineData, 6);
//}
//painter->drawLines(lines.data(), lines.size());
// Draw red ink
//if (stuff.size() > 1) {
// QPen p = painter->pen();
// painter->setPen(QPen(Qt::red, 1, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
// painter->setBrush(Qt::NoBrush);
// QPainterPath path;
// path.moveTo(stuff.first());
// for (int i = 1; i < stuff.size(); ++i)
// path.lineTo(stuff.at(i));
// painter->drawPath(path);
// painter->setPen(p);
//}
}