// Determine the type of data in the cell
int EditDialog::checkDataType(const QByteArray& data)
{
QByteArray cellData = data;
// Check for NULL data type
if (cellData.isNull()) {
return Null;
}
// Check if it's an image. First do a quick test by calling canRead() which only checks the first couple of bytes or so. Only if
// that returned true, do a more sophisticated test of the data. This way we get both, good performance and proper data checking.
QBuffer imageBuffer(&cellData);
QImageReader readerBuffer(&imageBuffer);
QString imageFormat = readerBuffer.format();
if(readerBuffer.canRead() && !readerBuffer.read().isNull())
return imageFormat == "svg" ? SVG : Image;
// Check if it's text only
if(isTextOnly(cellData))
{
QJsonDocument jsonDoc = QJsonDocument::fromJson(cellData);
if (!jsonDoc.isNull())
return JSON;
else
return Text;
}
// It's none of the above, so treat it as general binary data
return Binary;
}
bool SqliteTableModel::nosync_isBinary(const QModelIndex& index) const
{
if(!m_cache.count(index.row()))
return false;
const auto & cached_row = m_cache.at(index.row());
return !isTextOnly(cached_row.at(index.column()), m_encoding, true);
}
void NSRPopplerDocument::renderPage(int page)
{
double dpix, dpiy;
if (_doc == NULL || page > getNumberOfPages() || page < 1)
return;
_page = _catalog->getPage(page);
if (isTextOnly()) {
PDFRectangle *rect;
GooString *text;
TextOutputDev *dev;
dev = new TextOutputDev (0, gFalse, gFalse, gFalse);
_doc->displayPageSlice(dev, _page->getNum(), 72, 72, 0, gFalse, gTrue, gFalse, -1, -1, -1, -1);
rect = _page->getCropBox();
text = dev->getText(rect->x1, rect->y1, rect->x2, rect->y2);
_text = processText(QString::fromUtf8(text->getCString()));
delete text;
delete dev;
_readyForLoad = true;
return;
}
if (isZoomToWidth()) {
double wZoom = ((double) getScreenWidth() / (double) _page->getCropWidth() * 100.0);
setZoomSilent((int) wZoom);
}
if (getZoom() > getMaxZoom())
setZoomSilent (getMaxZoom());
else if (getZoom() < getMinZoom())
setZoomSilent (getMinZoom());
if (_readyForLoad)
_dev->startPage(0, NULL);
dpix = _dpix * getZoom() / 100.0;
dpiy = _dpiy * getZoom() / 100.0;
_page->display(_dev, dpix, dpiy, getRotation(), gFalse, gFalse, gTrue, _catalog);
_readyForLoad = true;
}
