ArtistForm::ArtistForm(const QString &name, QWidget *parent)
: QDialog(parent)
{
model = new QSqlTableModel(this);
model->setTable("artist");
model->setSort(Artist_Name, Qt::AscendingOrder);
model->setHeaderData(Artist_Name, Qt::Horizontal, tr("Name"));
model->setHeaderData(Artist_Country, Qt::Horizontal, tr("Country"));
model->select();
connect(model, SIGNAL(beforeInsert(QSqlRecord &)),
this, SLOT(beforeInsertArtist(QSqlRecord &)));
tableView = new QTableView;
tableView->setModel(model);
tableView->setColumnHidden(Artist_Id, true);
tableView->setSelectionBehavior(QAbstractItemView::SelectRows);
tableView->resizeColumnsToContents();
for (int row = 0; row < model->rowCount(); ++row) {
QSqlRecord record = model->record(row);
if (record.value(Artist_Name).toString() == name) {
tableView->selectRow(row);
break;
}
}
addButton = new QPushButton(tr("&Add"));
deleteButton = new QPushButton(tr("&Delete"));
closeButton = new QPushButton(tr("Close"));
connect(addButton, SIGNAL(clicked()), this, SLOT(addArtist()));
connect(deleteButton, SIGNAL(clicked()),
this, SLOT(deleteArtist()));
connect(closeButton, SIGNAL(clicked()), this, SLOT(accept()));
QHBoxLayout *buttonLayout = new QHBoxLayout;
buttonLayout->addWidget(addButton);
buttonLayout->addWidget(deleteButton);
buttonLayout->addStretch();
buttonLayout->addWidget(closeButton);
QVBoxLayout *mainLayout = new QVBoxLayout;
mainLayout->addWidget(tableView);
mainLayout->addLayout(buttonLayout);
setLayout(mainLayout);
setWindowTitle(tr("Edit Artists"));
}
//Update an artist
void ArtistIndex::updateArtist(std::string old_artist, std::string new_artist, int old_pos)
{
int holdLocation = 0;
//If new artist does not currently exist...
if(!matchArtist(new_artist, holdLocation))
{
addArtist(new_artist, old_pos);
} // end if
else
{
//Copy positions to new location
Node * newNode = head->next;
//Find new Node
while(newNode != NULL)
{
if(newNode->artist == new_artist)
{
break;
} // end if
newNode = newNode->next;
} // end while
//Update count
newNode->up->pos = newNode->up->pos + 1;
//Find empty up in newNode
Node * newUp = newNode->up;
while(newUp->up != NULL)
{
newUp = newUp->up;
} // end while
//Add New Up
Node * p = new Node("~",old_pos);
p->down = newUp->down;
p->up = newUp;
newUp->down->up=p;
newUp->down=p;
} // end else
//Delete Old Up
deleteArtist(old_artist, old_pos);
} // end updateArtist