A small annoying problem in my QGraphicsScene

I already asked a question about this application.

I'm designing a chess application (with extended controls), but the movement of the peaces take place in a QGraphicsScene, designed to hold the board.

The board is sharp and pretty without movements :

Attachment 8628

When I move an element (next to the frame) this happens :

Attachment 8629

Parts of the code related to this :

Code:

---

#ifndef ChessElement_H
#define ChessElement_H
#include <QGraphicsItem>
Class QPainter;
 
class ChessElement : public QGraphicsItem
{
 
public:
 
 QImage *g;
 char type;
 char identity;
 int color;
 int rank;
 bool isOccupied;
 bool movflag;
 int rawCount;
 int rawRank;
 
 
 
public : ChessElement(QImage*,int,bool,char,int,char,int,int);
 
public :QRectF boundingRect() const    ;
 
public :void paint(QPainter*, const QStyleOptionGraphicsItem*,QWidget *);
 
 
 
};
 
#endif // ChessElement_H

---

Paint function :

Code:

---

QRectF ChessElement::boundingRect() const
{
 
    return QRectF(0,0,30,30);
 
}
 
void ChessElement:: paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
                        QWidget *widget)
{
   QPoint *s = new QPoint(0,0);
   painter->drawImage(*s,*g);
   delete s;
 
 
 
 }

---

what is causing this white space ? I is it related to the re-drawing of items after movement.

I guess is that the order of the items is causing this.

Santosh Reddy, thank you for replying.

When I minimize the window & enlarge, the white space is removed, the board becomes normal again.

I placed the frame as the first element in the scene.

It makes me think there is some problem with either boundingRect() or with paint()

Try with this version of drawImage()

Code:

---

void QPainter::drawImage ( const QPointF & point, const QImage & image, const QRectF & source, Qt::ImageConversionFlags flags = Qt::AutoColor )

---

source rect will be the bounding rect

Thank you very much. I will try this function once I'm done with scanning the code again for missing things.

I'm very sorry but I have another question : my program was initially 13 MB, now its size has increased to 14.8 MB, is that too much for a chess game ?
I mean in your experience : do you think such application can be built with lesser size ? (using the same quality & extensions of images I used here ?? )
and if I used Qt's native painting functions to paint my chess elements, would it be lesser in size ?

Extensions used : PNG.
Quality : 100% (photoshop)

Are you embedding images as resources in the exe file, if so check there size too