void QgsProjectParser::layersAndStylesCapabilities( QDomElement& parentElement, QDomDocument& doc ) const
{
QList<QDomElement> layerElems = projectLayerElements();
QStringList nonIdentifiableLayers = identifyDisabledLayers();
if ( layerElems.size() < 1 )
{
return;
}
QMap<QString, QgsMapLayer *> layerMap;
QList<QDomElement>::const_iterator layerIt = layerElems.constBegin();
for ( ; layerIt != layerElems.constEnd(); ++layerIt )
{
QgsMapLayer *layer = createLayerFromElement( *layerIt );
if ( layer )
{
QgsDebugMsg( QString( "add layer %1 to map" ).arg( layer->id() ) );
layerMap.insert( layer->id(), layer );
}
#if QGSMSDEBUG
else
{
QString buf;
QTextStream s( &buf );
layerIt->save( s, 0 );
QgsDebugMsg( QString( "layer %1 not found" ).arg( buf ) );
}
#endif
}
//According to the WMS spec, there can be only one toplevel layer.
//So we create an artificial one here to be in accordance with the schema
QString projTitle = projectTitle();
QDomElement layerParentElem = doc.createElement( "Layer" );
layerParentElem.setAttribute( "queryable", "1" );
QDomElement layerParentNameElem = doc.createElement( "Name" );
QDomText layerParentNameText = doc.createTextNode( projTitle );
layerParentNameElem.appendChild( layerParentNameText );
layerParentElem.appendChild( layerParentNameElem );
QDomElement layerParentTitleElem = doc.createElement( "Title" );
QDomText layerParentTitleText = doc.createTextNode( projTitle );
layerParentTitleElem.appendChild( layerParentTitleText );
layerParentElem.appendChild( layerParentTitleElem );
QDomElement legendElem = mXMLDoc->documentElement().firstChildElement( "legend" );
addLayers( doc, layerParentElem, legendElem, layerMap, nonIdentifiableLayers );
parentElement.appendChild( layerParentElem );
combineExtentAndCrsOfGroupChildren( layerParentElem, doc );
}
QList<QgsMapLayer*> QgsProjectParser::mapLayerFromStyle( const QString& lName, const QString& styleName, bool allowCaching ) const
{
Q_UNUSED( styleName );
Q_UNUSED( allowCaching );
QList<QgsMapLayer*> layerList;
//first assume lName refers to a leaf layer
QMap< QString, QDomElement > layerElemMap = projectLayerElementsByName();
QMap< QString, QDomElement >::const_iterator layerElemIt = layerElemMap.find( lName );
if ( layerElemIt != layerElemMap.constEnd() )
{
QgsMapLayer* layer = createLayerFromElement( layerElemIt.value() );
if ( layer )
{
layerList.push_back( layer );
return layerList;
}
}
//Check if layer name refers to the top level group for the project.
if ( lName == projectTitle() )
{
QList<QDomElement> layerElemList = projectLayerElements();
QList<QDomElement>::const_iterator layerElemIt = layerElemList.constBegin();
for ( ; layerElemIt != layerElemList.constEnd(); ++layerElemIt )
{
layerList.push_back( createLayerFromElement( *layerElemIt ) );
}
return layerList;
}
//maybe the layer is a goup. Check if lName is contained in the group list
QMap< QString, QDomElement > idLayerMap = projectLayerElementsById();
QList<QDomElement> legendGroups = legendGroupElements();
QList<QDomElement>::const_iterator groupIt = legendGroups.constBegin();
for ( ; groupIt != legendGroups.constEnd(); ++groupIt )
{
if ( groupIt->attribute( "name" ) == lName )
{
if ( groupIt->attribute( "embedded" ) == "1" ) //requested group is embedded from another project
{
QString project = convertToAbsolutePath( groupIt->attribute( "project" ) );
QgsDebugMsg( QString( "Project path: %1" ).arg( project ) );
QgsProjectParser* p = dynamic_cast<QgsProjectParser*>( QgsConfigCache::instance()->searchConfiguration( project ) );
if ( p )
{
QList<QDomElement> pGroupElems = p->legendGroupElements();
QList<QDomElement>::const_iterator pGroupIt = pGroupElems.constBegin();
QDomElement embeddedGroupElem;
for ( ; pGroupIt != pGroupElems.constEnd(); ++pGroupIt )
{
if ( pGroupIt->attribute( "name" ) == lName )
{
embeddedGroupElem = *pGroupIt;
break;
}
}
if ( !embeddedGroupElem.isNull() )
{
//add all the layers under the group
QMap< QString, QDomElement > pLayerElems = p->projectLayerElementsById();
QDomNodeList pLayerNodes = embeddedGroupElem.elementsByTagName( "legendlayer" );
for ( int i = 0; i < pLayerNodes.size(); ++i )
{
QString pLayerId = pLayerNodes.at( i ).toElement().firstChildElement( "filegroup" ).firstChildElement( "legendlayerfile" ).attribute( "layerid" );
QgsMapLayer* pLayer = p->createLayerFromElement( pLayerElems[pLayerId] );
if ( pLayer )
{
layerList.push_back( pLayer );
}
}
}
}
}
else //normal (not embedded) group
{
QDomNodeList layerFileList = groupIt->elementsByTagName( "legendlayerfile" );
for ( int i = 0; i < layerFileList.size(); ++i )
{
QMap< QString, QDomElement >::const_iterator layerEntry = idLayerMap.find( layerFileList.at( i ).toElement().attribute( "layerid" ) );
if ( layerEntry != idLayerMap.constEnd() )
{
layerList.push_back( createLayerFromElement( layerEntry.value() ) );
}
}
}
return layerList;
}
}
//maybe the layer is embedded from another project
QMap< QString, QDomElement >::const_iterator layerIt = idLayerMap.constBegin();
for ( ; layerIt != idLayerMap.constEnd(); ++layerIt )
{
if ( layerIt.value().attribute( "embedded" ) == "1" )
{
QString id = layerIt.value().attribute( "id" );
QString project = layerIt.value().attribute( "project" );
QgsDebugMsg( QString( "Project path: %1" ).arg( project ) );
//get config parser from cache
QgsProjectParser* otherParser = dynamic_cast<QgsProjectParser*>( QgsConfigCache::instance()->searchConfiguration( project ) );
if ( otherParser )
{
//get element by id
QMap< QString, QDomElement > otherLayerElems = otherParser->projectLayerElementsById();
QMap< QString, QDomElement >::const_iterator otherLayerIt = otherLayerElems.find( id );
if ( otherLayerIt != otherLayerElems.constEnd() )
{
if ( otherLayerIt.value().firstChildElement( "layername" ).text() == lName )
{
layerList.push_back( otherParser->createLayerFromElement( otherLayerIt.value() ) );
return layerList;
}
}
}
}
}
//layer still not found. Check if it is a single layer contained in a embedded layer group
groupIt = legendGroups.constBegin();
for ( ; groupIt != legendGroups.constEnd(); ++groupIt )
{
if ( groupIt->attribute( "embedded" ) == "1" )
{
QString project = convertToAbsolutePath( groupIt->attribute( "project" ) );
QgsDebugMsg( QString( "Project path: %1" ).arg( project ) );
QgsProjectParser* p = dynamic_cast<QgsProjectParser*>( QgsConfigCache::instance()->searchConfiguration( project ) );
if ( p )
{
QMap< QString, QDomElement > pLayers = p->projectLayerElementsByName();
QMap< QString, QDomElement >::const_iterator pLayerIt = pLayers.find( lName );
if ( pLayerIt != pLayers.constEnd() )
{
QgsMapLayer* layer = p->createLayerFromElement( pLayerIt.value() );
if ( layer )
{
layerList.push_back( layer );
return layerList;
}
}
}
}
}
//layer not found, return empty list
return layerList;
}
layerMap.insert( layer->id(), layer );
}
#if QGSMSDEBUG
else
{
QString buf;
QTextStream s( &buf );
elem.save( s, 0 );
QgsDebugMsg( QString( "layer %1 not found" ).arg( buf ) );
}
#endif
}
//According to the WMS spec, there can be only one toplevel layer.
//So we create an artificial one here to be in accordance with the schema
QString projTitle = projectTitle();
QDomElement layerParentElem = doc.createElement( "Layer" );
layerParentElem.setAttribute( "queryable", "1" );
QDomElement layerParentNameElem = doc.createElement( "Name" );
QDomText layerParentNameText = doc.createTextNode( projTitle );
layerParentNameElem.appendChild( layerParentNameText );
layerParentElem.appendChild( layerParentNameElem );
QDomElement layerParentTitleElem = doc.createElement( "Title" );
QDomText layerParentTitleText = doc.createTextNode( projTitle );
layerParentTitleElem.appendChild( layerParentTitleText );
layerParentElem.appendChild( layerParentTitleElem );
QDomElement legendElem = mXMLDoc->documentElement().firstChildElement( "legend" );
addLayers( doc, layerParentElem, legendElem, layerMap, nonIdentifiableLayers );