void QgsComposition::beginPrintAsPDF( QPrinter& printer, const QString& file )
{
printer.setOutputFormat( QPrinter::PdfFormat );
printer.setOutputFileName( file );
printer.setPaperSize( QSizeF( paperWidth(), paperHeight() ), QPrinter::Millimeter );
QgsPaintEngineHack::fixEngineFlags( printer.paintEngine() );
}
QImage QgsComposition::printPageAsRaster( int page )
{
//print out via QImage, code copied from on_mActionExportAsImage_activated
int width = ( int )( printResolution() * paperWidth() / 25.4 );
int height = ( int )( printResolution() * paperHeight() / 25.4 );
QImage image( QSize( width, height ), QImage::Format_ARGB32 );
if ( !image.isNull() )
{
image.setDotsPerMeterX( printResolution() / 25.4 * 1000 );
image.setDotsPerMeterY( printResolution() / 25.4 * 1000 );
image.fill( 0 );
QPainter imagePainter( &image );
renderPage( &imagePainter, page );
}
return image;
}