frame width depends on composition scale

git-svn-id: http://svn.osgeo.org/qgis/trunk@5506 c8812cc2-4d05-0410-92ff-de0c093fc19c

src/composer/qgscomposermap.cpp

@@ -294,7 +294,7 @@ void QgsComposerMap::draw ( QPainter & painter )
     // Draw frame around
     if ( mFrame ) {
       QPen pen(QColor(0,0,0));
-      pen.setWidthF(0.2);
+      pen.setWidthF(0.2*mComposition->scale());
       painter.setPen( pen );
       painter.setBrush( Qt::NoBrush );
 	    painter.save();