fix qgis-server crash moving QCursor to the GUI classes (follow 454c732)

Author: brushtyler

src/core/symbology-ng/qgssvgcache.cpp

@@ -265,12 +265,10 @@ QByteArray QgsSvgCache::getImageData( const QString &path ) const
 
     // wait until the image download finished
     // TODO: connect to the reply->finished() signal
-    QApplication::setOverrideCursor( QCursor( Qt::WaitCursor ) );
     while ( !reply->isFinished() )
     {
       QCoreApplication::processEvents( QEventLoop::ExcludeUserInputEvents, 500 );
     }
-    QApplication::restoreOverrideCursor();
 
     if ( reply->error() != QNetworkReply::NoError )
     {

src/gui/symbology-ng/qgssymbollayerv2widget.cpp

@@ -33,6 +33,7 @@
 
 #include <QAbstractButton>
 #include <QColorDialog>
+#include <QCursor>
 #include <QDir>
 #include <QFileDialog>
 #include <QPainter>
@@ -801,7 +802,11 @@ void QgsSvgMarkerSymbolLayerV2Widget::on_mFileLineEdit_editingFinished()
         return;
     }
   }
+
+  QApplication::setOverrideCursor( QCursor( Qt::WaitCursor ) );
   mLayer->setPath( mFileLineEdit->text() );
+  QApplication::restoreOverrideCursor();
+
   setGuiForSvg( mLayer );
   emit changed();
 }
@@ -994,7 +999,11 @@ void QgsSVGFillSymbolLayerWidget::on_mSVGLineEdit_editingFinished()
         return;
     }
   }
+
+  QApplication::setOverrideCursor( QCursor( Qt::WaitCursor ) );
   mLayer->setSvgFilePath( mSVGLineEdit->text() );
+  QApplication::restoreOverrideCursor();
+
   updateParamGui();
   emit changed();
 }