KasItem* KasBar::itemAt(const QPoint &p)
{
KasItem *i;
QRect cr;
for (i = items.first(); i; i = items.next()) {
cr.setTopLeft( i->pos() );
cr.setSize( QSize( itemExtent(), itemExtent() ) );
if(cr.contains(p))
return i;
}
return 0;
}
void KasBar::updateLayout()
{
// kDebug(1345) << "KasBar: updateLayout(), count is " << items.count();
if ( !isUpdatesEnabled() )
return;
bool updates = isUpdatesEnabled();
setUpdatesEnabled( false );
// This is for testing a rectangular layout
// boxesPerLine_ = (uint) ceil(sqrt( items.count() ));
// Work out the number of rows and columns
unsigned int r=0, c=0;
if( items.count() > (unsigned int) boxesPerLine_ ) {
r = items.count()/boxesPerLine_;
c = boxesPerLine_;
}
else{
r = 1;
c = items.count();
}
if( r*c < items.count() ) // remainders
++r;
QSize sz;
if ( orient == Qt::Horizontal )
sz = QSize( c * itemExtent(), r * itemExtent() );
else
sz = QSize( r * itemExtent(), c * itemExtent() );
if ( sz != size() ) {
resize( sz );
}
setUpdatesEnabled( updates );
QWidget *top = topLevelWidget();
QRegion mask;
KasItem *i;
if ( orient == Qt::Horizontal ) {
for ( i = items.first(); i; i = items.next() ) {
int x = (items.at() % c) * itemExtent();
if ( direction_ == QBoxLayout::RightToLeft )
x = width() - x - itemExtent();
i->setPos( x, (items.at() / c) * itemExtent() );
i->update();
mask = mask.unite( QRegion( QRect( i->pos(), QSize(itemExtent(),itemExtent()) ) ) );
}
}
else {
for ( i = items.first(); i; i = items.next() ) {
int y = (items.at() / r) * itemExtent();
if ( direction_ == QBoxLayout::BottomToTop )
y = height() - y - itemExtent();
i->setPos( (items.at() % r) * itemExtent(), y );
i->update();
mask = mask.unite( QRegion( QRect( i->pos(), QSize(itemExtent(),itemExtent()) ) ) );
}
}
if ( useMask_ )
top->setMask( mask );
else
top->clearMask();
update();
}