C++ (Cpp) QButton::isToggleButton Examples

Example #1

File: qbuttongroup.cpp Project: AliYousuf/univ-aca-mips

/*!
    \reimp
*/
bool QButtonGroup::event( QEvent * e )
{
    if ( e->type() == QEvent::ChildInserted ) {
	QChildEvent * ce = (QChildEvent *) e;
	if ( radio_excl && ::qt_cast<QRadioButton*>(ce->child()) ) {
	    QButton * button = (QButton *) ce->child();
	    if ( button->isToggleButton() && !button->isOn() &&
		 selected() && (selected()->focusPolicy() & TabFocus) != 0 )
		button->setFocusPolicy( (FocusPolicy)(button->focusPolicy() &
					      ~TabFocus) );
	}
    }
    return QGroupBox::event( e );
}

Example #2

File: qbuttongroup.cpp Project: AliYousuf/univ-aca-mips

void QButtonGroup::buttonToggled( bool on )
{
    // introduce a QButtonListIt if calling anything
    if ( !on || !excl_grp && !radio_excl )
	return;
    QButton *bt = ::qt_cast<QButton*>(sender());		// object that sent the signal
#if defined(QT_CHECK_NULL)
    Q_ASSERT( bt );
    Q_ASSERT( bt->isToggleButton() );
#endif

    if ( !excl_grp && !::qt_cast<QRadioButton*>(bt) )
	return;
    QButtonItem * i = buttons->first();
    bool hasTabFocus = FALSE;

    while( i != 0 && hasTabFocus == FALSE ) {
	if ( ( excl_grp || ::qt_cast<QRadioButton*>(i->button) ) &&
	     (i->button->focusPolicy() & TabFocus) )
	    hasTabFocus = TRUE;
	i = buttons->next();
    }

    i = buttons->first();
    while( i ) {
	if ( bt != i->button &&
	     i->button->isToggleButton() &&
	     i->button->isOn() &&
	     ( excl_grp || ::qt_cast<QRadioButton*>(i->button) ) )
	    i->button->setOn( FALSE );
	if ( ( excl_grp || ::qt_cast<QRadioButton*>(i->button) ) &&
	     i->button->isToggleButton() &&
	     hasTabFocus )
	    i->button->setFocusPolicy( (FocusPolicy)(i->button->focusPolicy() &
						     ~TabFocus) );
	i = buttons->next();
    }

    if ( hasTabFocus )
	bt->setFocusPolicy( (FocusPolicy)(bt->focusPolicy() | TabFocus) );
}

Example #3

File: qbuttongroup.cpp Project: AliYousuf/univ-aca-mips

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();
    }
}