void QButtonGroup::moveFocus( int key )
{
QWidget * f = qApp->focusWidget();
QButtonItem * i;
i = buttons->first();
while( i && i->button != f )
i = buttons->next();
if ( !i || !i->button )
return;
QWidget * candidate = 0;
int bestScore = -1;
QPoint goal( f->mapToGlobal( f->geometry().center() ) );
i = buttons->first();
while( i && i->button ) {
if ( i->button != f &&
i->button->isEnabled() ) {
QPoint p(i->button->mapToGlobal(i->button->geometry().center()));
int score = (p.y() - goal.y())*(p.y() - goal.y()) +
(p.x() - goal.x())*(p.x() - goal.x());
bool betterScore = score < bestScore || !candidate;
switch( key ) {
case Key_Up:
if ( p.y() < goal.y() && betterScore ) {
if ( QABS( p.x() - goal.x() ) < QABS( p.y() - goal.y() ) ) {
candidate = i->button;
bestScore = score;
} else if ( i->button->x() == f->x() ) {
candidate = i->button;
bestScore = score/2;
}
}
break;
case Key_Down:
if ( p.y() > goal.y() && betterScore ) {
if ( QABS( p.x() - goal.x() ) < QABS( p.y() - goal.y() ) ) {
candidate = i->button;
bestScore = score;
} else if ( i->button->x() == f->x() ) {
candidate = i->button;
bestScore = score/2;
}
}
break;
case Key_Left:
if ( p.x() < goal.x() && betterScore ) {
if ( QABS( p.y() - goal.y() ) < QABS( p.x() - goal.x() ) ) {
candidate = i->button;
bestScore = score;
} else if ( i->button->y() == f->y() ) {
candidate = i->button;
bestScore = score/2;
}
}
break;
case Key_Right:
if ( p.x() > goal.x() && betterScore ) {
if ( QABS( p.y() - goal.y() ) < QABS( p.x() - goal.x() ) ) {
candidate = i->button;
bestScore = score;
} else if ( i->button->y() == f->y() ) {
candidate = i->button;
bestScore = score/2;
}
}
break;
}
}
i = buttons->next();
}
QButton *buttoncand = ::qt_cast<QButton*>(candidate);
if ( buttoncand && ::qt_cast<QButton*>(f) &&
((QButton*)f)->isOn() &&
buttoncand->isToggleButton() &&
( isExclusive() || ( ::qt_cast<QRadioButton*>(f) &&
::qt_cast<QRadioButton*>(candidate)))) {
if ( f->focusPolicy() & TabFocus ) {
f->setFocusPolicy( (FocusPolicy)(f->focusPolicy() & ~TabFocus) );
candidate->setFocusPolicy( (FocusPolicy)(candidate->focusPolicy()|
TabFocus) );
}
buttoncand->setOn( TRUE );
buttoncand->animateClick();
buttoncand->animateTimeout(); // ### crude l&f hack
}
if ( candidate ) {
if (key == Key_Up || key == Key_Left)
QFocusEvent::setReason(QFocusEvent::Backtab);
else
QFocusEvent::setReason(QFocusEvent::Tab);
candidate->setFocus();
QFocusEvent::resetReason();
}
}
void QButtonGroup::setButton( int id )
{
QButton * b = find( id );
if ( b )
b->setOn( TRUE );
}