trying to write protein as SVG file

src/gui/protein_view/proteinwindow.cpp

@@ -156,7 +156,7 @@ void ProteinWindow::doSaveSvg() {
         }
 
         settings.setValue("path/export_svg", QFileInfo(filename).absolutePath());
-/*
+
         QSvgGenerator generator;
         //generator.setOutputDevice(&buffer);
         QSize size(600, 1000);
@@ -165,14 +165,30 @@ void ProteinWindow::doSaveSvg() {
         generator.setViewBox(QRect(0, 0, size.width(), size.height()));
         generator.setTitle(_p_protein_match->getProteinXtpSp().get()->getAccession());
         //generator.setDescription(description);
-        QPainter painter;
-        painter.begin(&generator);
-        painter.setViewport(0,0, size.width(), size.height());
+        //QPainter painter;
+        //painter.begin(&generator);
+        //painter.setViewport(0,0, size.width(), size.height());
         
-        ui->sequenceTextEdit->document()->drawContents(&painter);
-        painter.end();
-        */
-
+       // ui->sequenceTextEdit->document()->drawContents(&painter);
+       // painter.end();
+        
+QTextDocument *doc = ui->sequenceTextEdit->document()->clone();
+    doc->setUndoRedoEnabled(false);
+    //doc->setHtml("<p><span style=\"color:#000000; font-weight:600\">"+text_x+"</span></p>");
+    doc->setTextWidth(size.width());
+    doc->setUseDesignMetrics(true);
+    doc->setDefaultTextOption ( QTextOption (Qt::AlignHCenter )  ); 
+    //// height from doc QTextDocument
+    //// http://fop-miniscribus.googlecode.com/svn/trunk/fop_miniscribus.1.0.0/src/floating_box/floatdiagram.cpp
+    //////setMaximumHeight(DocumentHighgtActual());  
+ 
+        QPainter *p = new QPainter(&generator);
+        p->setRenderHint(QPainter::Antialiasing, true);
+        doc->drawContents(p,QRect(0, 0, size.width(), size.height()));
+        p->end();
+ 
+        
+/*
         QSvgGenerator svg;
 svg.setFileName(filename);
 QTextDocument *doc = ui->sequenceTextEdit->document()->clone();
@@ -181,7 +197,7 @@ QPainter painter(&svg);
 //painter.setViewport(rectSize);
 //doc->documentLayout()->setPaintDevice(&svg);
 doc->drawContents(&painter);
-
+*/
 
 /*
 QtWebEngine::initialize();