A Sample Highlighting QGRAPHICSEFFECT__QT

Http://qt-project.org/wiki/Category:HowTo

Class   Highlighteffect:public qgraphicseffect
{
 q_object
 q_property (qcolor  color   READ Color  WRITE setcolor)
 q_property (qpointf offset  READ offset WRITE setoffset) public
:
 Highlighteffect (qreal offset = 1.5);
 Virtual QRECTF  boundingrectfor (const QRECTF &sourceRect;) const;
 Qcolor          Color () const {return Mcolor}
 void            SetColor (Qcolor &color;) {mcolor = color;}
 qpointf         offset () const {return moffset}
 void            setoffset (qpointf offset) {moffset = offset;}
 
Protected:
 virtual void    Draw (Qpainter *painter);//, Qgraphicseffectsource *source);
Private:
 qcolor              mcolor;
 qpointf             moffset;
};

 Highlighteffect::highlighteffect (qreal offset): Qgraphicseffect (), Mcolor (255, 255, 0, 128),//Yellow, Semi-tra 
Nsparent moffset (offset, offset) {} QRECTF highlighteffect::boundingrectfor (const QRECTF &sourceRect;) const
 
{return sourcerect.adjusted (-moffset.x (),-moffset.y (), Moffset.x (), Moffset.y ());}
 void Highlighteffect::d raw (Qpainter *painter) {qpoint offset;
 
Qpixmap Pixmap; if (Sourceispixmap ())//doesn ' t seems to work, return false {//No point in drawing in device coordinates (PIXMA
  P'll be scaled anyways).  Pixmap = Sourcepixmap (qt::logicalcoordinates, &offset;);
 , mode);
 
 } QRECTF bound = Boundingrectfor (Pixmap.rect ());
 Painter->save ();
 Painter->setpen (Qt::nopen);
 Painter->setbrush (Mcolor);
 qpointf P (offset.x ()-moffset.x (), Offset.y ()-moffset.y ());
 Bound.movetopleft (P);
 Painter->drawroundedrect (Bound, 5, 5, qt::relativesize);
 Painter->drawpixmap (offset, pixmap); Painter-&gT;restore (); }

        Pixmap *item = new Pixmap (KINETICPIX);
        Highlighteffect *effect = new Highlighteffect ();
 
        Item->setgraphicseffect (effect);

It is a good high light effect to make a record for the time being.