void YSelection::addInterval( const YInterval& i )
{
bool containsFrom;
bool containsTo;
unsigned int idFrom = locatePosition( i.from(), &containsFrom );
unsigned int idTo = locatePosition( i.to(), &containsTo );
if ( containsFrom && containsTo ) {
if ( idFrom != idTo ) {
mMap[ idFrom ].setTo( mMap[ idTo ].to() );
removeInterval( idFrom + 1, idTo - idFrom );
}
} else if ( containsFrom ) {
mMap[ idFrom ].setTo( i.to() );
removeInterval( idFrom + 1, idTo - idFrom - 1 );
} else if ( containsTo ) {
mMap[ idTo ].setFrom( i.from() );
removeInterval( idFrom, idTo - idFrom );
} else if ( idTo != idFrom ) {
mMap[ idFrom ].setFrom( i.from() );
mMap[ idFrom ].setTo( i.to() );
removeInterval( idFrom + 1, idTo - idFrom );
} else {
insertInterval( idFrom, i );
}
}
void YSelection::delInterval( const YInterval& i )
{
bool containsFrom;
bool containsTo;
unsigned int idFrom = locatePosition( i.from(), &containsFrom );
unsigned int idTo = locatePosition( i.to(), &containsTo );
if ( idFrom == idTo && !containsFrom && !containsTo ) return ;
// dbg() << "delInterval: from=" << idFrom << "," << containsFrom << "; to=" << idTo << "," << containsTo << endl;
if ( containsFrom && i.from() <= mMap[ idFrom ].from() ) {
containsFrom = false;
}
if ( containsTo && i.to() >= mMap[ idTo ].to() ) {
++idTo;
containsTo = false;
}
if ( containsTo && containsFrom && idFrom == idTo ) {
++idTo;
insertInterval( idTo, mMap[ idFrom ] );
}
if ( containsFrom )
mMap[ idFrom ].setTo( YBound(i.from().pos(), !i.from().opened()) );
if ( containsTo )
mMap[ idTo ].setFrom( YBound(i.to().pos(), !i.to().opened()) );
removeInterval( idFrom + (containsFrom ? 1 : 0), idTo - idFrom - (containsFrom && containsTo ? 1 : 0) );
}
QTransferFunctionEditorByValues::QTransferFunctionEditorByValues(QWidget *parent)
: QTransferFunctionEditor(parent)
{
setupUi(this);
// Creem una scroll area per si hi ha molts intervals (no es pot crear des del Qt Designer)
QScrollArea *scrollArea = new QScrollArea(this);
qobject_cast<QBoxLayout*>(this->layout())->insertWidget(1, scrollArea);
m_intervalEditorsWidget = new QWidget(scrollArea);
QBoxLayout *layout = new QVBoxLayout(m_intervalEditorsWidget);
m_intervalEditorsLayout = new QVBoxLayout();
layout->addLayout(m_intervalEditorsLayout);
layout->addStretch();
layout->setMargin(0);
scrollArea->setWidget(m_intervalEditorsWidget);
scrollArea->setWidgetResizable(true);
scrollArea->setFrameShape(QFrame::NoFrame);
// Creem el primer interval
QTransferFunctionIntervalEditor *first = new QTransferFunctionIntervalEditor(m_intervalEditorsWidget);
first->setIsFirst(true);
first->setIsLast(true);
first->setObjectName("interval0");
m_intervalEditorsLayout->addWidget(first);
connect(first, SIGNAL(startChanged(int)), SLOT(markAsChanged()));
connect(first, SIGNAL(endChanged(int)), SLOT(markAsChanged()));
connect(first, SIGNAL(colorChanged(const QColor&)), SLOT(markAsChanged()));
// Mida mínima de la scroll area
QStyle *style = scrollArea->style();
int scrollBarWidth = style->pixelMetric(QStyle::PM_ScrollBarExtent);
scrollArea->setMinimumWidth(first->minimumSizeHint().width() + scrollBarWidth);
m_numberOfIntervals = 1;
m_changed = true;
connect(m_addPushButton, SIGNAL(clicked()), SLOT(addInterval()));
connect(m_removePushButton, SIGNAL(clicked()), SLOT(removeInterval()));
connect(m_nameLineEdit, SIGNAL(textChanged(const QString&)), SLOT(markAsChanged()));
}
/*!
\fn QMediaTimeRange::operator-=(const QMediaTimeInterval &interval)
Removes the specified \a interval from the time range and returns the result.
\since 1.0
*/
QMediaTimeRange& QMediaTimeRange::operator-=(const QMediaTimeInterval &interval)
{
removeInterval(interval);
return *this;
}
