QGraphicsItem paint not triggered

[roband915]

This is my paint method. What I'm really trying to do here is a movable legend. As you can see the pen size is way off but any less than 200 is not visible so my guess is that I've mixed up the maybe the scene's coordinatesystem with the item's?

void itemSymbols::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
	painter->setRenderHint(QPainter::Antialiasing);
	qDebug("itemSymbols paint()");
 
	bBox.setHeight(height);
	bBox.setWidth(width);
 
	QPointF header;
	header.setX(width/2);
	header.setY(height*0.05);
 
	qreal newHeight = header.y();
 
	QFont font;
	font.setBold(true);
	painter->setFont(font);
 
	QPen pen;
	pen.setWidth(200);
	painter->setPen(pen);
 
	painter->drawText(header,"Symbols");
 
	qreal iRows = (height-newHeight)/15;
	qreal h = iRows;
 
	qreal iCol = width/4;
	qreal c = iCol;
 
	font.setBold(false);
	painter->setFont(font);
 
	QFont font2;
	font2.setPointSizeF(4);
	painter->setFont(font2);
 
	for(int i = 0;i<vPics.size();i++)
	{
		QPointF p;
		p.setX(10.0);
		p.setY(h+10);
 
		QPointF p2;
		p2.setX(60.0);
		p2.setY(h);
 
		h = h + iRows;
		c = c + iCol;
 
		QPixmap pixmap(vPics.at(i));
		QRectF d = QRectF(p.x(),p.y(),28,28);
		//painter->drawRect(d);
		//painter->drawPixmap(p,pixmap);
 
		const char *chTemp;
		chTemp = vDesc.at(i).toAscii();
		QRectF t = QRectF(p2.x(), p.y(),120,30);
		//painter->drawRect(t);
		//painter->drawText(QRectF(p2.x(), p.y(),120,30), Qt::AlignCenter, QObject::tr(chTemp));
	}
 
	qDebug("Drawing a box at pos %f %f", bBox.topLeft().x(), bBox.topLeft().y());
	painter->drawRect(bBox);
	painter->drawPoint(centerPos);
}

void itemSymbols::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
	painter->setRenderHint(QPainter::Antialiasing);
	qDebug("itemSymbols paint()");

	bBox.setHeight(height);
	bBox.setWidth(width);

	QPointF header;
	header.setX(width/2);
	header.setY(height*0.05);

	qreal newHeight = header.y();

	QFont font;
	font.setBold(true);
	painter->setFont(font);

	QPen pen;
	pen.setWidth(200);
	painter->setPen(pen);

	painter->drawText(header,"Symbols");

	qreal iRows = (height-newHeight)/15;
	qreal h = iRows;

	qreal iCol = width/4;
	qreal c = iCol;

	font.setBold(false);
	painter->setFont(font);

	QFont font2;
	font2.setPointSizeF(4);
	painter->setFont(font2);

	for(int i = 0;i<vPics.size();i++)
	{
		QPointF p;
		p.setX(10.0);
		p.setY(h+10);

		QPointF p2;
		p2.setX(60.0);
		p2.setY(h);

		h = h + iRows;
		c = c + iCol;

		QPixmap pixmap(vPics.at(i));
		QRectF d = QRectF(p.x(),p.y(),28,28);
		//painter->drawRect(d);
		//painter->drawPixmap(p,pixmap);

		const char *chTemp;
		chTemp = vDesc.at(i).toAscii();
		QRectF t = QRectF(p2.x(), p.y(),120,30);
		//painter->drawRect(t);
		//painter->drawText(QRectF(p2.x(), p.y(),120,30), Qt::AlignCenter, QObject::tr(chTemp));
	}

	qDebug("Drawing a box at pos %f %f", bBox.topLeft().x(), bBox.topLeft().y());
	painter->drawRect(bBox);
	painter->drawPoint(centerPos);
}

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[wysota]

I don't know what width and height are but changing the bounding box in the paint routine is definitely a bad idea. The method is called paint() and not paintAndUpdateBoundingBox(). Not knowing the scene size and the transformation matrix of the view I'm unable to say anything about the pen size.