Merge pull request #475 from Kellermorph/update-german-translation

Update German translations for duplicate diagram feature

lang/qet_de.ts

@@ -2814,7 +2814,7 @@ Alle Bauteile und Unterordner von diesem Ordner werden ebenso gelöscht.</transl
     <message>
         <location filename="../sources/elementspanelwidget.cpp" line="63"/>
         <source>Copier et coller</source>
-        <translation type="unfinished"></translation>
+        <translation>Kopieren und Einfügen</translation>
     </message>
     <message>
         <location filename="../sources/elementspanelwidget.cpp" line="64"/>
@@ -8855,7 +8855,7 @@ Was möchten Sie tun?</translation>
     <message>
         <location filename="../sources/ElementsCollection/fileelementcollectionitem.cpp" line="133"/>
         <source>Makros</source>
-        <translation type="unfinished"></translation>
+        <translation>Vorlagen</translation>
     </message>
     <message>
         <location filename="../sources/ElementsCollection/fileelementcollectionitem.cpp" line="135"/>
@@ -9420,15 +9420,15 @@ Möchten Sie sie ersetzen?</translation>
         <translation>Einfügen</translation>
     </message>
     <message>
+        <location filename="../sources/conductorproperties.cpp" line="826"/>
         <location filename="../sources/ElementsCollection/elementslocation.cpp" line="401"/>
+        <location filename="../sources/factory/elementpicturefactory.cpp" line="582"/>
+        <location filename="../sources/qetapp.cpp" line="2379"/>
         <location filename="../sources/SearchAndReplace/searchandreplaceworker.cpp" line="351"/>
         <location filename="../sources/SearchAndReplace/searchandreplaceworker.cpp" line="474"/>
         <location filename="../sources/SearchAndReplace/searchandreplaceworker.cpp" line="509"/>
         <location filename="../sources/SearchAndReplace/searchandreplaceworker.cpp" line="538"/>
         <location filename="../sources/SearchAndReplace/ui/searchandreplacewidget.cpp" line="425"/>
-        <location filename="../sources/conductorproperties.cpp" line="826"/>
-        <location filename="../sources/factory/elementpicturefactory.cpp" line="582"/>
-        <location filename="../sources/qetapp.cpp" line="2379"/>
         <location filename="../sources/titleblock/templatelocation.cpp" line="108"/>
         <source>this is an error in the code</source>
         <translation>dies ist ein Programmfehler</translation>

sources/print/projectprintwindow.cpp

@@ -47,6 +47,7 @@
 #include <QFile>
 #include <QRegularExpression>
 #include <QMap>
+#include <QTimer>
 #include <QVector>
 
 /**
@@ -495,13 +496,12 @@ void ProjectPrintWindow::requestPaint()
 		printDiagram(diagram, ui->m_fit_in_page_cb->isChecked(), &painter, m_printer, diagramPageMap);
 	}
 
-	if (pdfExport) {
-		painter.end();   // flush & close the PDF file on disk
-		// Convert URI link annotations into native internal GoTo/FitR actions:
-		// cross-references then jump inside the document (no new viewer
-		// instance) and frame the target element.
-		pdfConvertUriToGoTo(m_printer->outputFileName());
-	}
+	// Note: do NOT call painter.end() or pdfConvertUriToGoTo() here.
+	// We are inside the paintRequested slot: the QPrintPreviewWidget still
+	// owns the paint cycle.  On macOS arm64 (Metal/CALayer compositor),
+	// closing the QPainter manually inside this slot leaves the backing
+	// store in an undefined state, producing a black screen after export.
+	// pdfConvertUriToGoTo() is deferred to print() via QTimer::singleShot(0).
 }
 
 /**
@@ -1218,9 +1218,29 @@ void ProjectPrintWindow::on_m_uncheck_all_clicked()
 
 void ProjectPrintWindow::print()
 {
-	m_preview->print();
+	const bool isPdf = (m_printer->outputFormat() == QPrinter::PdfFormat);
+	const QString pdfFile = isPdf ? m_printer->outputFileName() : QString();
+
+	m_preview->print();   // triggers requestPaint() synchronously; painter
+	                      // is created/destroyed inside that call
+
 	savePageSetupForCurrentPrinter();
-	this->close();
+
+	if (isPdf && !pdfFile.isEmpty()) {
+		// Defer post-processing and window close to the next event-loop
+		// iteration.  This lets the macOS arm64 Metal compositor finish
+		// compositing the backing store before the window is destroyed,
+		// which prevents the black screen observed on Apple Silicon under
+		// macOS Sequoia (QPrintPreviewWidget + CALayer timing issue).
+		QTimer::singleShot(0, this, [this, pdfFile]() {
+			// Convert URI link annotations into native internal GoTo/FitR
+			// actions so cross-references jump inside the document.
+			pdfConvertUriToGoTo(pdfFile);
+			this->close();
+		});
+	} else {
+		this->close();
+	}
 }
 
 void ProjectPrintWindow::on_m_date_cb_userDateChanged(const QDate &date)