void UBExportFullPDF::saveOverlayPdf(UBDocumentProxy* pDocumentProxy, const QString& filename)
{
if (!pDocumentProxy || filename.length() == 0 || pDocumentProxy->pageCount() == 0)
return;
//PDF
qDebug() << "exporting document to PDF Merger" << filename;
QPrinter pdfPrinter;
pdfPrinter.setOutputFormat(QPrinter::PdfFormat);
pdfPrinter.setResolution(UBSettings::settings()->pdfResolution->get().toInt());
pdfPrinter.setOutputFileName(filename);
pdfPrinter.setFullPage(true);
QPainter* pdfPainter = 0;
for(int pageIndex = 0 ; pageIndex < pDocumentProxy->pageCount(); pageIndex++)
{
UBGraphicsScene* scene = UBPersistenceManager::persistenceManager()->loadDocumentScene(pDocumentProxy, pageIndex);
// set background to white, no grid for PDF output
bool isDark = scene->isDarkBackground();
bool isCrossed = scene->isCrossedBackground();
scene->setBackground(false, false);
// set high res rendering
scene->setRenderingQuality(UBItem::RenderingQualityHigh);
scene->setRenderingContext(UBGraphicsScene::PdfExport);
QSize pageSize = scene->nominalSize();
UBGraphicsPDFItem *pdfItem = qgraphicsitem_cast<UBGraphicsPDFItem*>(scene->backgroundObject());
if (pdfItem) mHasPDFBackgrounds = true;
pdfPrinter.setPaperSize(QSizeF(pageSize.width()*mScaleFactor, pageSize.height()*mScaleFactor), QPrinter::Point);
if (!pdfPainter) pdfPainter = new QPainter(&pdfPrinter);
if (pageIndex != 0) pdfPrinter.newPage();
//render to PDF
scene->setDrawingMode(true);
scene->render(pdfPainter, QRectF(), scene->normalizedSceneRect());
//restore screen rendering quality
scene->setRenderingContext(UBGraphicsScene::Screen);
scene->setRenderingQuality(UBItem::RenderingQualityNormal);
//restore background state
scene->setDrawingMode(false);
scene->setBackground(isDark, isCrossed);
}
if (pdfPainter) delete pdfPainter;
}
bool UBExportPDF::persistsDocument(UBDocumentProxy* pDocumentProxy, const QString& filename)
{
QPrinter pdfPrinter;
qDebug() << "exporting document to PDF" << filename;
pdfPrinter.setOutputFormat(QPrinter::PdfFormat);
pdfPrinter.setResolution(UBSettings::settings()->pdfResolution->get().toInt());
pdfPrinter.setOutputFileName(filename);
pdfPrinter.setFullPage(true);
//need to calculate screen resolution
QDesktopWidget* desktop = UBApplication::desktop();
int dpiCommon = (desktop->physicalDpiX() + desktop->physicalDpiY()) / 2;
float scaleFactor = 72.0f / dpiCommon;
QPainter pdfPainter;
bool painterNeedsBegin = true;
int existingPageCount = pDocumentProxy->pageCount();
for(int pageIndex = 0 ; pageIndex < existingPageCount; pageIndex++)
{
UBGraphicsScene* scene = UBPersistenceManager::persistenceManager()->loadDocumentScene(pDocumentProxy, pageIndex);
UBApplication::showMessage(tr("Exporting page %1 of %2").arg(pageIndex + 1).arg(existingPageCount));
// set background to white, no crossing for PDF output
bool isDark = scene->isDarkBackground();
bool isCrossed = scene->isCrossedBackground();
scene->setBackground(false, false);
QSize pageSize = scene->nominalSize();
// set high res rendering
scene->setRenderingQuality(UBItem::RenderingQualityHigh);
scene->setRenderingContext(UBGraphicsScene::NonScreen);
//setting page size to appropriate value
pdfPrinter.setPaperSize(QSizeF(pageSize.width()*scaleFactor, pageSize.height()*scaleFactor), QPrinter::Point);
if(painterNeedsBegin) painterNeedsBegin = !pdfPainter.begin(&pdfPrinter);
//render to PDF
scene->render(&pdfPainter, QRectF(), scene->normalizedSceneRect());
if (pageIndex < existingPageCount - 1) pdfPrinter.newPage();
//restore screen rendering quality
scene->setRenderingContext(UBGraphicsScene::Screen);
scene->setRenderingQuality(UBItem::RenderingQualityNormal);
//restore background state
scene->setBackground(isDark, isCrossed);
}
if(!painterNeedsBegin) pdfPainter.end();
return true;
}
void UBExportFullPDF::persistsDocument(UBDocumentProxy* pDocumentProxy, const QString& filename)
{
QFile file(filename);
if (file.exists()) file.remove();
QString overlayName = filename;
overlayName.replace(".pdf", "_overlay.pdf");
QFile previousOverlay(overlayName);
if (previousOverlay.exists())
previousOverlay.remove();
mHasPDFBackgrounds = false;
saveOverlayPdf(pDocumentProxy, overlayName);
if (!mHasPDFBackgrounds)
{
QFile f(overlayName);
f.rename(filename);
}
else
{
Merger merger;
try
{
merger.addOverlayDocument(QFile::encodeName(overlayName).constData());
MergeDescription mergeInfo;
int existingPageCount = pDocumentProxy->pageCount();
for(int pageIndex = 0 ; pageIndex < existingPageCount; pageIndex++)
{
UBGraphicsScene* scene = UBPersistenceManager::persistenceManager()->loadDocumentScene(pDocumentProxy, pageIndex);
UBGraphicsPDFItem *pdfItem = qgraphicsitem_cast<UBGraphicsPDFItem*>(scene->backgroundObject());
QSize pageSize = scene->nominalSize();
if (pdfItem)
{
QString pdfName = UBPersistenceManager::objectDirectory + "/" + pdfItem->fileUuid().toString() + ".pdf";
QString backgroundPath = pDocumentProxy->persistencePath() + "/" + pdfName;
qDebug() << "scene->itemsBoundingRect()" << scene->itemsBoundingRect();
qDebug() << "pdfItem->boundingRect()" << pdfItem->boundingRect();
qDebug() << "pdfItem->sceneBoundingRect()" << pdfItem->sceneBoundingRect();
MergePageDescription pageDescription(pageSize.width() * mScaleFactor,
pageSize.height() * mScaleFactor,
pdfItem->pageNumber(),
QFile::encodeName(backgroundPath).constData(),
TransformationDescription(),
pageIndex + 1,
TransformationDescription(),
false, false);
mergeInfo.push_back(pageDescription);
merger.addBaseDocument(QFile::encodeName(backgroundPath).constData());
}
else
{
MergePageDescription pageDescription(pageSize.width() * mScaleFactor,
pageSize.height() * mScaleFactor,
0,
"",
TransformationDescription(),
pageIndex + 1,
TransformationDescription(),
false, true);
mergeInfo.push_back(pageDescription);
}
}
merger.merge(QFile::encodeName(overlayName).constData(), mergeInfo);
merger.saveMergedDocumentsAs(QFile::encodeName(filename).constData());
}
catch(Exception e)
{
qDebug() << "PdfMerger failed to merge documents to " << filename << " - Exception : " << e.what();
// default to raster export
UBExportPDF::persistsDocument(pDocumentProxy, filename);
}
if (!UBApplication::app()->isVerbose())
{
QFile::remove(overlayName);
}
}
}