How draw extra border on QGraphicsTextItem?

Code:

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/*
incomming QDomElement
<divtext rotate="90" zindex="2" left="115" top="25" large="300" hight="400" >
<param font="arial" color="#0000ff"  size="30">Scribble XHTML Floating DIV box width:300px height:400px top:25px left:115px</param>
</divtext>
*/
 
class FloatText : public QGraphicsTextItem
{ 
Q_OBJECT
public:
FloatText( QDomElement xmlstream , QGraphicsItem *parent, QGraphicsScene *scene  )
  : QGraphicsTextItem(parent, scene)
{
        modus = MODUS_MOVE;
        root = xmlstream;
        moveBy(GetInt("left"),GetInt("top"));
        rotate(GetInt("rotate"));
        f = QFont();
        int FontSize = root.firstChildElement("param").attributeNode("size").value().toInt();
        if (FontSize > 9) {
        f.setPixelSize(FontSize);  
        } else {
        f.setPixelSize(10); 
        }
        f.setFamily( root.firstChildElement("param").attributeNode("font").value() ); 
        setDefaultTextColor ( root.firstChildElement("param").attributeNode("color").value() );
        human = root.firstChildElement("param").text();
        setTextWidth ( GetInt("large") );
        setPlainText ( human );
        setFont(f);
        setZValue( GetInt("zindex") + 300 );  /* to make border - */
        SetMoveItem();
        QObject::connect(scene, SIGNAL(selectionChanged()), this, SLOT(WakeUpHere()));
       /////// ensureVisible(QRectF(GetInt("left"),GetInt("top"),GetInt("large"),GetInt("hight")),80,80);
}
 
void paint(QPainter *painter,const QStyleOptionGraphicsItem *option,QWidget *widget)
{
    painter->drawRect (-2,-2,GetInt("large") + 4,8);   /* GetInt("hight") + 4   border 2px out side overflow*/
    update();
}

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I not make forward paint :o ..

but now ony resize window display a correct border why?

Code:

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void paint(QPainter *painter,const QStyleOptionGraphicsItem *option,QWidget *widget)
{
    QPen pen;
    pen.setStyle( Qt::SolidLine );
    pen.setWidth( 2 );
    pen.setColor( option->palette.highlight().color() );
    /////scene()->clearSelection();
    ////prepareGeometryChange();
    painter->setPen( pen);
    painter->drawRect (-2,-2,GetInt("large") + 4,GetInt("hight") + 4);
    QGraphicsTextItem::paint(painter,option,widget);
}

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All painting must be restricted to inside an item's bounding rect.

Quote:

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Originally Posted by jpn

All painting must be restricted to inside an item's bounding rect.

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If i set setTextWidth(300); his paint only on this area ... and text break on this limit correct.
Now i must grab a way to become setTextHight(x) to display text only on this limit, like xhtml div overflow / hidden http://de.selfhtml.org/css/eigenscha...g.htm#overflow

inside moveBy(10,10); and how i find the way to increase the bounding width whitout destroy textwidht pixel ?

I not find SetboundingRect(X) area ... and margin? to increase this paint area? to make my border and limit text Width x Hight.

You need to override boundingRect() to return enlarged rect. I did some sample code.
This worked for me for all rotations and pixel sizes. Here it is.
Guess this is what you wanted

Code:

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#include <QtGui>
 
class FloatText : public QGraphicsTextItem
{
      //Q_OBJECT;
   public:
      FloatText( QGraphicsScene *scene  )
         : QGraphicsTextItem(0, scene)
      {
         setPlainText ( "human ");
         QFont f =  font();
         f.setPixelSize(40);
         setFont(f);
         rotate(-90);
         setFlags(QGraphicsItem::ItemIsMovable);
      }
 
      QRectF boundingRect() const
      {
         return QGraphicsTextItem::boundingRect().adjusted(-2,-2,+2,+2);
      }
 
      void paint(QPainter *painter,const QStyleOptionGraphicsItem *option,QWidget *widget)
      {
         QGraphicsTextItem::paint(painter,option,widget);
         // Isn't this strange to call update in paint event ?
         //update();
         painter->setPen(Qt::black);
         painter->drawRect(boundingRect());
      }
 
};
 
int main(int argc, char *argv[])
{
   QApplication app(argc,argv);
   QGraphicsScene scene(0,0,1024,768);
   FloatText t(&scene);
   t.setPos(500,500);
   QGraphicsView view(&scene);
   view.show();
   return app.exec();
}

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