Q3DataBrowser::Boundary Q3DataBrowser::boundary()
{
Q3SqlCursor* cur = d->cur.cursor();
if (!cur || !cur->isActive())
return Unknown;
if (!cur->isValid()) {
if (cur->at() == QSql::BeforeFirst)
return BeforeBeginning;
if (cur->at() == QSql::AfterLast)
return AfterEnd;
return Unknown;
}
if (cur->at() == 0)
return Beginning;
int currentAt = cur->at();
Boundary b = None;
if (!cur->previous())
b = Beginning;
else
cur->seek(currentAt);
if (b == None && !cur->next())
b = End;
cur->seek(currentAt);
return b;
}
bool Q3DataBrowser::deleteCurrent()
{
if (isReadOnly())
return false;
QSqlRecord* buf = d->frm.record();
Q3SqlCursor* cur = d->cur.cursor();
if (!buf || !cur)
return false;
writeFields();
int n = cur->at();
emit beforeDelete(buf);
int ar = cur->del();
if (ar) {
refresh();
updateBoundary();
cursorChanged(Q3SqlCursor::Delete);
if (!cur->seek(n))
last();
if (cur->isValid()) {
cur->editBuffer(true);
readFields();
} else {
clearValues();
}
return true;
} else {
if (!cur->isActive()) {
handleError(cur->lastError());
refresh();
updateBoundary();
}
}
return false;
}
bool Q3DataBrowser::currentEdited()
{
QSqlRecord* buf = d->frm.record();
Q3SqlCursor* cur = d->cur.cursor();
if (!buf || !cur)
return false;
if (!cur->isActive() || !cur->isValid())
return false;
writeFields();
for (int i = 0; i < cur->count(); ++i) {
if (cur->value(i) != buf->value(i))
return true;
}
return false;
}
