hi friends,

how to draw checkbox using qstyle in a qgraphicsitem .?
i tried not to use qgraphicsproxy widget so i tried to use qstyle but i was facing a problem in setting the text color of the checkbox.

please correct me if im wrong in this implementation ..

Qt Code: 
  1. class CheckBoxItem : public QGraphicsObject,public QGraphicsLayoutItem
  2. {
  3. public:
  4.    CheckBoxItem(const QString & text,QGraphicsItem *parent =0);
  5.     QString m_text;
  6.      QRectF boundingRect() const;
  7. protected:
  8.     void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
  9.  
  10.     void mousePressEvent(QGraphicsSceneMouseEvent *event);
  11.  
  12.  
  13.     QSizeF sizeHint(Qt::SizeHint which, const QSizeF &constraint) const;
  14.     void setGeometry(const QRectF &rect);
  15.  
  16.  
  17. private:
  18.     bool m_mousePressed;
  19.  
  20.  
  21. };
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in .cpp
Qt Code: 
  1. CheckBoxItem::CheckBoxItem(const QString &text, QGraphicsItem *parent)
  2.     : QGraphicsObject(parent),m_mousePressed(false)
  3. {
  4.     m_text = text;
  5. }
  6. void
  7. CheckBoxItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
  8. {
  9.     QFont font("Serif",8);
  10.     painter->setFont(font);
  11.  
  12.     const QStyle *style = QApplication::style();
  14.  
  15.     opt.state |= m_mousePressed ? QStyle::State_On : QStyle::State_Off;
  16.     opt.state |= QStyle::State_Enabled;
  17.     // opt.palette = QPalette(Qt::red);
  18.     opt.text = m_text;
  19.     opt.rect = option->rect;
  20.     opt.palette = QPalette(Qt::white);
  21.  
  22.     style->drawControl(QStyle::CE_CheckBox,&opt,painter);
  23.  
  24. }
  25.  
  27. CheckBoxItem::sizeHint(Qt::SizeHint which, const QSizeF &constraint) const
  28. {
  29.     return boundingRect().size();
  30. }
  31.  
  32. void
  33. CheckBoxItem::setGeometry(const QRectF &rect)
  34. {
  35.     setPos(rect.topLeft());
  36. }
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i dont know how to change the color and font size of the text in check box .. but check box is coming fine ..
please help ..