ending store and restore layer extents in projects

Author: rldhont

src/core/qgsmaplayer.cpp

@@ -424,6 +424,12 @@ bool QgsMapLayer::readLayerXML( const QDomElement& layerElement )
   setMinimumScale( layerElement.attribute( "minimumScale" ).toDouble() );
   setMaximumScale( layerElement.attribute( "maximumScale" ).toDouble() );
 
+  QDomNode extentNode = layerElement.namedItem( "extent" );
+  if ( !extentNode.isNull() )
+  {
+    setExtent( QgsXmlUtils::readRectangle( extentNode.toElement() ) );
+  }
+
   // set name
   mnl = layerElement.namedItem( "layername" );
   mne = mnl.toElement();
@@ -1259,6 +1265,11 @@ void QgsMapLayer::exportNamedStyle( QDomDocument &doc, QString &errorMsg )
   myRootNode.setAttribute( "minimumScale", QString::number( minimumScale() ) );
   myRootNode.setAttribute( "maximumScale", QString::number( maximumScale() ) );
 
+  if ( !mExtent.isNull() )
+  {
+    myRootNode.appendChild( QgsXmlUtils::writeRectangle( mExtent, myDocument ) );
+  }
+
 #if 0
   // <transparencyLevelInt>
   QDomElement transparencyLevelIntElement = myDocument.createElement( "transparencyLevelInt" );