Porting from Qwt5 to Qwt6: QwtMetricsMap

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<html><head></head><body><div style="font-family: Verdana;font-size: 12.0px;"><div>Hi all,</div>

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<div>I am porting an old application from Qwt5 to Qwt6 and I don&#39;t know how to port the followin code as&nbsp;in Qwt6, the class&nbsp;QwtMetricsMap has disappeared:</div>

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<pre>void printScale(const QwtScaleWidget* widget,</pre>

<pre>                const QString&amp; filename)</pre>

<pre>{</pre>

<pre>   // save the label as PDF</pre>

<pre>   QPrinter printer(QPrinter::HighResolution);</pre>

<pre>   printer.setOutputFormat(QPrinter::PdfFormat);</pre>

<pre>   printer.setOutputFileName(filename);</pre>

<pre>   printer.setPageMargins(0, 0, 0, 0, QPrinter::DevicePixel); // no margins</pre>

<pre>   QPainter painter;</pre>

<pre>   painter.begin(&amp;printer);</pre>

<pre>   QwtMetricsMap oldmap = QwtPainter::metricsMap();</pre>

<pre>   QwtPainter::setMetricsMap(widget, painter.device()); // scale accordingly</pre>

<pre>   painter.end();</pre>

<pre>   printer.setPaperSize(QSizeF(QwtPainter::metricsMap().layoutToDevice(widget-&gt;size())), QPrinter::DevicePixel);</pre>

<pre>   painter.begin(&amp;printer);</pre>

<pre>   printScale(&amp;painter, widget, widget-&gt;rect());</pre>

<pre>   painter.end();</pre>

<pre>   QwtPainter::setMetricsMap(oldmap);</pre>

<pre>}</pre>

<pre>&nbsp;</pre>

<div>How can I set a useful paper size and initialise the painter to print the scale onto a PDF?</div>

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<div>Thanks,</div>

<div>Annemarie</div>

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