void KoTabBar::mouseMoveEvent( QMouseEvent* ev )
{
if ( d->readOnly ) return;
QPoint pos = ev->pos();
if( !d->reverseLayout) pos = pos - QPoint( d->offset,0 );
// check if user drags a tab to move it
int i = d->tabAt( pos ) + 1;
if( ( i > 0 ) && ( i != d->targetTab ) )
{
if( i == d->activeTab ) i = 0;
if( i == d->activeTab+1 ) i = 0;
if( i != d->targetTab )
{
d->targetTab = i;
d->autoScroll = false;
update();
}
}
// drag past the very latest visible tab
// e.g move a tab to the last ordering position
QRect r = d->tabRects[ d->tabRects.count()-1 ];
bool moveToLast = false;
if( r.isValid() )
{
if( !d->reverseLayout )
if( pos.x() > r.right() )
if( pos.x() < width() )
moveToLast = true;
if( d->reverseLayout )
if( pos.x() < r.x() )
if( pos.x() > 0 )
moveToLast = true;
}
if( moveToLast )
if( d->targetTab != (int)d->tabRects.count()+1 )
{
d->targetTab = d->tabRects.count()+1;
d->autoScroll = false;
update();
}
// outside far too left ? activate autoscroll...
if ( pos.x() < 0 && !d->autoScroll )
{
d->autoScroll = true;
autoScrollBack();
}
// outside far too right ? activate autoscroll...
int w = width() - d->offset;
if ( pos.x() > w && !d->autoScroll )
{
d->autoScroll = true;
autoScrollForward();
}
}
void TabBar::autoScrollBack()
{
if (!d->autoScroll) return;
scrollBack();
if (!canScrollBack())
d->autoScroll = false;
else
QTimer::singleShot(400, this, SLOT(autoScrollBack()));
}