QgsLayerTreeLayer* QgsLayerTreeLayer::readXML( QDomElement& element )
{
if ( element.tagName() != "layer-tree-layer" )
return 0;
QString layerID = element.attribute( "id" );
QString layerName = element.attribute( "name" );
Qt::CheckState checked = QgsLayerTreeUtils::checkStateFromXml( element.attribute( "checked" ) );
bool isExpanded = ( element.attribute( "expanded", "1" ) == "1" );
QgsLayerTreeLayer* nodeLayer = 0;
QgsMapLayer* layer = QgsMapLayerRegistry::instance()->mapLayer( layerID );
if ( layer )
nodeLayer = new QgsLayerTreeLayer( layer );
else
nodeLayer = new QgsLayerTreeLayer( layerID, layerName );
nodeLayer->readCommonXML( element );
nodeLayer->setVisible( checked );
nodeLayer->setExpanded( isExpanded );
return nodeLayer;
}
bool QgsLayerTreeModel::setData( const QModelIndex& index, const QVariant& value, int role )
{
QgsLayerTreeModelLegendNode *sym = index2symnode( index );
if ( sym )
{
if ( role == Qt::CheckStateRole && !testFlag( AllowSymbologyChangeState ) )
return false;
bool res = sym->setData( value, role );
if ( res )
emit dataChanged( index, index );
return res;
}
QgsLayerTreeNode* node = index2node( index );
if ( !node )
return QgsLayerTreeModel::setData( index, value, role );
if ( role == Qt::CheckStateRole )
{
if ( !testFlag( AllowNodeChangeVisibility ) )
return false;
if ( QgsLayerTree::isLayer( node ) )
{
QgsLayerTreeLayer* layer = QgsLayerTree::toLayer( node );
layer->setVisible(( Qt::CheckState )value.toInt() );
return true;
}
if ( QgsLayerTree::isGroup( node ) )
{
QgsLayerTreeGroup* group = QgsLayerTree::toGroup( node );
group->setVisible(( Qt::CheckState )value.toInt() );
return true;
}
return true;
}
else if ( role == Qt::EditRole )
{
if ( !testFlag( AllowNodeRename ) )
return false;
if ( QgsLayerTree::isLayer( node ) )
{
QgsLayerTreeLayer* layer = QgsLayerTree::toLayer( node );
layer->setLayerName( value.toString() );
emit dataChanged( index, index );
}
else if ( QgsLayerTree::isGroup( node ) )
{
QgsLayerTree::toGroup( node )->setName( value.toString() );
emit dataChanged( index, index );
}
}
return QAbstractItemModel::setData( index, value, role );
}
bool CustomLayerOrderModel::setData( const QModelIndex& index, const QVariant& value, int role )
{
if ( role == Qt::CheckStateRole )
{
QString id = mOrder.at( index.row() );
QgsLayerTreeLayer* nodeLayer = mBridge->rootGroup()->findLayer( id );
if ( nodeLayer )
{
nodeLayer->setVisible( static_cast< Qt::CheckState >( value.toInt() ) );
return true;
}
}
return false;
}
void QgsLayerTreeRegistryBridge::layersAdded( const QList<QgsMapLayer*>& layers )
{
if ( !mEnabled )
return;
QList<QgsLayerTreeNode*> nodes;
Q_FOREACH ( QgsMapLayer* layer, layers )
{
QgsLayerTreeLayer* nodeLayer = new QgsLayerTreeLayer( layer );
nodeLayer->setVisible( mNewLayersVisible ? Qt::Checked : Qt::Unchecked );
nodes << nodeLayer;
// check whether the layer is marked as embedded
QString projectFile = QgsProject::instance()->layerIsEmbedded( nodeLayer->layerId() );
if ( !projectFile.isEmpty() )
{
nodeLayer->setCustomProperty( "embedded", 1 );
nodeLayer->setCustomProperty( "embedded_project", projectFile );
}
}
void QgsLayerTreeRegistryBridge::layersAdded( QList<QgsMapLayer*> layers )
{
if ( !mEnabled )
return;
int i = 0;
foreach ( QgsMapLayer* layer, layers )
{
QgsLayerTreeLayer* nodeLayer = new QgsLayerTreeLayer( layer );
nodeLayer->setVisible( mNewLayersVisible ? Qt::Checked : Qt::Unchecked );
// add new layer to the top
mInsertionPointGroup->insertChildNode( mInsertionPointIndex + i++, nodeLayer );
// check whether the layer is marked as embedded
QString projectFile = QgsProject::instance()->layerIsEmbedded( nodeLayer->layerId() );
if ( !projectFile.isEmpty() )
{
nodeLayer->setCustomProperty( "embedded", 1 );
nodeLayer->setCustomProperty( "embedded_project", projectFile );
}
}
