[Qgis-developer] Segfault when using QgsComposition::exportAsPDF with QGIS 2.4 and python

[kimaidou]

I just tested the method shown in the Python Cookbook [1] instead of the
exportAsPDF method, which also segfault my QGIS 2.4 (ubuntu) when the
render method is called :


printer = QPrinter()
printer.setOutputFormat(QPrinter.PdfFormat)
printer.setOutputFileName("/tmp/out.pdf")
printer.setPaperSize(QSizeF(c.paperWidth(), c.paperHeight()),
QPrinter.Millimeter)
printer.setFullPage(True)
printer.setColorMode(QPrinter.Color)
printer.setResolution(c.printResolution())
pdfPainter = QPainter(printer)
paperRectMM = printer.pageRect(QPrinter.Millimeter)
paperRectPixel = printer.pageRect(QPrinter.DevicePixel)

c.render(pdfPainter, paperRectPixel, paperRectMM)



[1]
http://docs.qgis.org/testing/en/docs/pyqgis_developer_cookbook/composer.html#output-to-pdf




2014-07-07 19:20 GMT+02:00 kimaidou <kimaidou at gmail.com>:

> Hi all,
>
> I would like to share an issue I am having while trying to simply export a
> composition as PDF.
>
> Under QGIS 2.2, I had no problem, but QGIS 2.4 Segfault with the simple
> steps :
>
> c = QgsComposition( QgsMapSettings() )
> c.setPaperSize( 290, 210 )
> c.setPrintResolution( 100 )
> c.setSnapGridOffsetX( 3.5 )
> c.setSnapGridOffsetY( 0 )
> c.setSnapGridResolution( 2.5 )
> c.setNumPages( 1 )
>
> cl = QgsComposerLabel( c )
> cl.setItemPosition( 0, 10, 100, 100 )
> content = 'test'
> cl.setText( content )
> cl.setFrameEnabled( False )
> c.addItem( cl )
>
> c.exportAsPDF( '/tmp/test.pdf' )
>
> NB: I just discoverd that QgsComposition( QgsMapRenderer() ) is deprecated
> since QGIS 2.4 as explained here: http://www2.qgis.org/api/deprecated.html
> But using it or the new instanciation does not change the problem.
>
> Has anyone any hint on this issue ?
>
> Thanks in advance
> Michael
>
>
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