void KNMusicPlaylistModel::buildModel()
{
//Check if we have been build this model before.
if(m_built)
{
return;
}
//Generate a detail info cache list.
QList<KNMusicDetailInfo> detailInfos;
//Parse all the data in the content array.
for(auto i=m_contentData.constBegin(); i!=m_contentData.constEnd(); ++i)
{
//Parse and add the data to the model.
detailInfos.append(KNMusicUtil::objectToDetailInfo((*i).toObject()));
}
//Clear the content data.
m_contentData=QJsonArray();
//Add the detail infos to the model.
appendRows(detailInfos);
//Set the build flag.
m_built=true;
//Reset the changed flag, a model which just finished built cannot be
//changed before.
m_changed=false;
}
returnValue Matrix::computeQRdecomposition(){
int run1, run2, run3;
if( solver != 0 ){
delete solver;
solver = 0;
}
ASSERT( getNumRows() == getNumCols() );
double r ;
double h_s ;
double kappa;
double ll ;
double ttt ;
int nnn = getNumRows();
Matrix ddd(1,nnn);
for(run2 = 0; run2 < nnn; run2++){
r = 0.0;
for(run1 = run2; run1 < nnn; run1++){
r = r + operator()(run1,run2) * operator()(run1,run2);
}
if( r < EPS )
return ACADOERROR(RET_DIV_BY_ZERO);
if( operator()(run2,run2) < 0.0 ){
h_s = sqrt(r);
ddd(0,run2) = h_s ;
}
else{
h_s = -sqrt(r);
ddd(0,run2) = h_s ;
}
ttt = h_s * operator()(run2,run2) - r;
kappa = 1.0/ttt;
operator()(run2,run2) -= h_s;
for(run3 = run2+1; run3 < nnn; run3++){
ll = 0;
for(run1 = run2; run1 < nnn; run1++)
ll += operator()(run1,run2) * operator()(run1,run3);
ll = kappa * ll;
for(run1 = run2; run1 < nnn; run1++)
operator()(run1,run3) = operator()(run1,run3) + operator()(run1,run2) * ll;
}
}
appendRows(ddd);
return SUCCESSFUL_RETURN;
}
bool KNMusicPlaylistModel::dropMimeData(const QMimeData *data,
Qt::DropAction action,
int row,
int column,
const QModelIndex &parent)
{
//Check move or copy action enabled.
if(action==Qt::MoveAction || action==Qt::CopyAction)
{
//Check if the drop operation is from a music model.
if(data->hasFormat(ModelMimeType))
{
//Check whether the data is from it self.
if(data->data(ModelMimeType).toLongLong()==(qint64)this)
{
//Generate the remove index list.
QList<QPersistentModelIndex> sourceRowIndexes;
//Translate the row list to source row indexes list.
//We have to move the source indexes to the target positions.
QJsonArray rawRowData=
QJsonDocument::fromBinaryData(
data->data(ModelRowList)).array();
//Translate all the row into persistant list.
for(auto i=rawRowData.begin(); i!=rawRowData.end(); ++i)
{
//Add the target index to source row indexes.
sourceRowIndexes.append(index((*i).toInt(), Name));
}
//Sort the indexes as the row.
//We want to sort the list from a greater row to lesser row.
std::sort(sourceRowIndexes.begin(), sourceRowIndexes.end(),
[](const QModelIndex &left, const QModelIndex &right)
{return left.row()>right.row();});
//Translate the target position to persistant index.
int targetRow=(row==-1)?parent.row():row;
QPersistentModelIndex targetIndex=
index((targetRow==-1)?rowCount()-1:targetRow, Name);
//Move all the rows to target position.
while(!sourceRowIndexes.isEmpty())
{
//Get the source row.
int sourceRow=sourceRowIndexes.takeLast().row();
//Move the source row to target row.
moveRow(QModelIndex(), sourceRow,
QModelIndex(), targetIndex.row());
}
return true;
}
//We can simply parse the row information.
QJsonArray rawRowData=
QJsonDocument::fromBinaryData(
data->data(ModelRowData)).array();
//Generate a detail info list.
QList<KNMusicDetailInfo> detailInfoList;
//Parse all the data inside the array list.
for(auto i=rawRowData.begin(); i!=rawRowData.end(); ++i)
{
//Add the detail info to the detail info list.
detailInfoList.append(
KNMusicUtil::objectToDetailInfo((*i).toObject()));
}
//Check the row.
if(row==-1)
{
//We have to move all of these data to the end of the model.
appendRows(detailInfoList);
}
else
{
//We have to insert those rows to a specific positions.
insertMusicRows(row, detailInfoList);
}
//Accept.
return true;
}
}
//Or others, throw it to KNMusicModel.
return KNMusicModel::dropMimeData(data, action, row, column, parent);
}
MatrixExprReturnSP appendRows( LitMatrixExprReturn &litMatrixExprReturn ) {
VarMatrixExprReturnSP varMatrixExprReturnSP = litMatrixExprReturn.convertToVarMatrixExprReturn();
return appendRows( varMatrixExprReturnSP );
}
void ListModel::appendRow(ListItem *item)
{
appendRows(QList<ListItem*>() << item);
}
void RedisServerDbItem::keysLoadingFinished()
{
appendRows(keysLoadingResult.result());
server->statusMessage(QString("Keys rendering done"));
server->unlockUI();
}
void AccountsListModel::appendRow(Settings::AccountProfile *account)
{
appendRows(QList<Dekko::Settings::AccountProfile *>() << account);
}
