QHash<QString, QString> QgsServerProjectUtils::wmsFeatureInfoLayerAliasMap( const QgsProject &project )
{
QHash<QString, QString> aliasMap;
//WMSFeatureInfoAliasLayers
QStringList aliasLayerStringList = project.readListEntry( QStringLiteral( "WMSFeatureInfoAliasLayers" ), QStringLiteral( "/value" ), QStringList() );
if ( aliasLayerStringList.isEmpty() )
{
return aliasMap;
}
//WMSFeatureInfoLayerAliases
QStringList layerAliasStringList = project.readListEntry( QStringLiteral( "WMSFeatureInfoLayerAliases" ), QStringLiteral( "/value" ), QStringList() );
if ( layerAliasStringList.isEmpty() )
{
return aliasMap;
}
int nMapEntries = std::min( aliasLayerStringList.size(), layerAliasStringList.size() );
for ( int i = 0; i < nMapEntries; ++i )
{
aliasMap.insert( aliasLayerStringList.at( i ), layerAliasStringList.at( i ) );
}
return aliasMap;
}
QgsExpressionContextScope* QgsExpressionContextUtils::projectScope()
{
QgsProject* project = QgsProject::instance();
QgsExpressionContextScope* scope = new QgsExpressionContextScope( QObject::tr( "Project" ) );
//add variables defined in project file
QStringList variableNames = project->readListEntry( "Variables", "/variableNames" );
QStringList variableValues = project->readListEntry( "Variables", "/variableValues" );
int varIndex = 0;
Q_FOREACH ( const QString& variableName, variableNames )
{
if ( varIndex >= variableValues.length() )
{
break;
}
QString varValueString = variableValues.at( varIndex );
varIndex++;
scope->setVariable( variableName, varValueString );
}
//add other known project variables
scope->addVariable( QgsExpressionContextScope::StaticVariable( "project_title", project->title(), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( "project_path", project->fileInfo().filePath(), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( "project_folder", project->fileInfo().dir().path(), true ) );
scope->addVariable( QgsExpressionContextScope::StaticVariable( "project_filename", project->fileInfo().fileName(), true ) );
scope->addFunction( "project_color", new GetNamedProjectColor() );
return scope;
}
void QgsExpressionContextUtils::setProjectVariable( const QString& name, const QVariant& value )
{
QgsProject* project = QgsProject::instance();
//write variable to project
QStringList variableNames = project->readListEntry( "Variables", "/variableNames" );
QStringList variableValues = project->readListEntry( "Variables", "/variableValues" );
variableNames << name;
variableValues << value.toString();
project->writeEntry( "Variables", "/variableNames", variableNames );
project->writeEntry( "Variables", "/variableValues", variableValues );
}
QStringList QgsServerProjectUtils::wmsOutputCrsList( const QgsProject &project )
{
QStringList crsList;
QStringList wmsCrsList = project.readListEntry( QStringLiteral( "WMSCrsList" ), QStringLiteral( "/" ), QStringList() );
if ( !wmsCrsList.isEmpty() )
{
for ( int i = 0; i < wmsCrsList.size(); ++i )
{
QString crs = wmsCrsList.at( i );
if ( !crs.isEmpty() )
{
crsList.append( crs );
}
}
}
if ( crsList.isEmpty() )
{
QStringList valueList = project.readListEntry( QStringLiteral( "WMSEpsgList" ), QStringLiteral( "/" ), QStringList() );
bool conversionOk;
for ( int i = 0; i < valueList.size(); ++i )
{
int epsgNr = valueList.at( i ).toInt( &conversionOk );
if ( conversionOk )
{
crsList.append( QStringLiteral( "EPSG:%1" ).arg( epsgNr ) );
}
}
}
if ( crsList.isEmpty() )
{
//no CRS restriction defined in the project. Provide project CRS, wgs84 and pseudo mercator
QString projectCrsId = project.crs().authid();
crsList.append( projectCrsId );
if ( projectCrsId.compare( QLatin1String( "EPSG:4326" ), Qt::CaseInsensitive ) != 0 )
{
crsList.append( QStringLiteral( "EPSG:%1" ).arg( 4326 ) );
}
if ( projectCrsId.compare( QLatin1String( "EPSG:3857" ), Qt::CaseInsensitive ) != 0 )
{
crsList.append( QStringLiteral( "EPSG:%1" ).arg( 3857 ) );
}
}
return crsList;
}
QgsRectangle QgsServerProjectUtils::wmsExtent( const QgsProject &project )
{
bool ok = false;
QStringList values = project.readListEntry( QStringLiteral( "WMSExtent" ), QStringLiteral( "/" ), QStringList(), &ok );
if ( !ok || values.size() != 4 )
{
return QgsRectangle();
}
//order of value elements must be xmin, ymin, xmax, ymax
double xmin = values[ 0 ].toDouble();
double ymin = values[ 1 ].toDouble();
double xmax = values[ 2 ].toDouble();
double ymax = values[ 3 ].toDouble();
return QgsRectangle( xmin, ymin, xmax, ymax );
}
QStringList QgsServerProjectUtils::owsServiceKeywords( const QgsProject &project )
{
QStringList keywordList;
QStringList list = project.readListEntry( QStringLiteral( "WMSKeywordList" ), QStringLiteral( "/" ), QStringList() );
if ( !list.isEmpty() )
{
for ( int i = 0; i < list.size(); ++i )
{
QString keyword = list.at( i );
if ( !keyword.isEmpty() )
{
keywordList.append( keyword );
}
}
}
return keywordList;
}
QStringList QgsServerProjectUtils::wcsLayerIds( const QgsProject &project )
{
return project.readListEntry( QStringLiteral( "WCSLayers" ), QStringLiteral( "/" ) );
}
QStringList QgsServerProjectUtils::wfstDeleteLayerIds( const QgsProject &project )
{
return project.readListEntry( QStringLiteral( "WFSTLayers" ), QStringLiteral( "Delete" ) );
}
QStringList QgsServerProjectUtils::wmsRestrictedLayers( const QgsProject &project )
{
return project.readListEntry( QStringLiteral( "WMSRestrictedLayers" ), QStringLiteral( "/" ), QStringList() );
}
